tamil nadu transmission corporation limited …

Sl. NoName of the LDC

Voltage Level (KV)

From Substation To Substation Purpose conditionsRecommend

ationsFrom Date

From Time

To DateTo

TimeNo. of days

Remarks SE Approval

1 Madurai 110 KV KAYATHAR 230 KVOn 110KV Kayathar - Eppodumvandaran

feeder breaker with CT & entire line.

A) For Monthly maintenance work. B) For Tower to

Tower inspectionDuring the LC period. there will be no supply in entire feeder . Hence no SS affected POSSIBLE Sat, 01-Apr-2017 9:00 Sat, 01-Apr-2017 17:00 1 0 Approved

2 Erode 110 KV THINGALUR 230 KV110KV ARASUR feeder Breaker,CTs and

Line isolators.Monthly Maintenace Works 110KV VELAMPALAYAM SS availing total shutdown.Feeder will be back charged. possible Sat, 01-Apr-2017 9:00 Sat, 01-Apr-2017 17:00 1

subject to

velampalayam ss

availing tsd

Approved

3 Erode 230 KV THINGALUR 230 KVAUTO Transformer 1,HV 1 and LV 1's

Breakers with CTsMonthly Maintenance Works. 110KV VELAMPALAYAM SS availing total shutdown.No SS will be affected. possible Sat, 01-Apr-2017 9:00 Sat, 01-Apr-2017 17:00 1

subject to

velampalayam ss

availing tsd

Approved

4 Erode 110 KV Erode 110 KV110 KV ERODE - THIRUVACHI FEEDER

BREAKER AND CTMONTHLY MAINENANCE WORK.

DURING LC PERIOD METTUKADAI 110 KV SS UNDER TOTAL SHUTDOWN

CONDITION. NECESSARY CONCURRENCE OBTAINED FROM SE/EEDC/ERODE.possible Sat, 01-Apr-2017 9:00 Sat, 01-Apr-2017 15:00 1

subject to

mettukadai ss

availing tsd

Approved

5 Madurai 110 KV PASUMALAI 230 KV110KV Pasumalai - Alagarkoil -1 # Section

between Avaniyapuram and Vandiyur SS

For releasing the jumpers at Loc.33 towards

Alagarkoil and for releasing the Conductors from Loc

No 33 to 34 so as to issue LC for replacement of DC

Line on DC Towers with Leopard Conductor into DC

Line on DC Towers with Panther conductor in the

section between from T.Loc 34 to T.Loc 44 by the

TLC wing

1)110/33-11KV Anupanadi SS loads will be under Interruption . 2)110KV Pasumalai -

Alagarkoil -1 feeder will be kept radial from Alagarkoil upto Vandiyur SS 3)110KV

Pasumalai - Alagarkoil -1 feeder will be kept radial from Pasumalai upto Avaniyapuram

SS 4) Concurrence obtained from SE/Metro / Madurai for the Interruption and from the

SE/Madurai and SE/Sivaganga for the above arrangements

POSSIBLE Sat, 01-Apr-2017 9:00 Sat, 01-Apr-2017 11:00 1

sub to approval of

long lc and

approval for

interruption to

Anupanadi ss.

Approved

6 Madurai 110 KV PASUMALAI 230 KV110KV Pasumalai - Sakthi Sugars # Section

between Pasumalai and Uranganpatty

For releasing the jumpers towards Sakthi Sugars at

DP Loc No 33/1 and for releasing the Conductors

from DP Loc No 33/1 to DP Loc No 33/2 so as to

issue LC for replacement of DC Line on DC Towers

with Leopard Conductor into DC Line on DC Towers

with Panther conductor in the section from DP Loc

No 33/ 2 to T.Loc 44 by the TLC wing

1) The sakthisugars feeder will be kept fed from Alkl end through 110KV Alagarkoil -

Karaikudi Feeder so as to feed Uranganpatty SS, Nattarmanaglam , Nelmudikarai and

Arasanoor SS upto Sakthisugars. 2) At Uranganpatty SS the switch towards Pasumalai

SS will be kept opened and earthed.3)110KV Sakthisugar -Sivaganga Feeder will be in

grid 4)110KV Alagarkoil - Karaikudi Feeder will be radial from Karaikudi upto

Narasingampatti SS. 5) At Narasingampatti SS the switch towards Alagarkoil will be kept

open. 6) 110/33-11KV Villapuram SS will be under Interruption.7)Concurrence obtained

from SE/Metro / Madurai for the Interruption and from the SE/Madurai and SE/Sivaganga

for the above arrangements

POSSBLE Sat, 01-Apr-2017 9:00 Sat, 01-Apr-2017 11:00 1

sub to approval of

long lc and

approval for

interruption to

Villapuram ss.

Approved Note to be

put up for approval

(15 days)

7 Erode 110 KV GOBI 230 KV110 KV PERIYAKODIVERY FEEDER

BREAKER,CT'S WITH LINE SWITCH

FOR GRT RELAY TESTING WORK BY P&C/GOBI

AND ALSO FOR MONTHLY MAINTENANCE WORK

110 KV N.G PALAYAM SS,110 KV PERIYAKODIVERY SS,110 KV ALUKULI SS,110 KV

KAVILIPALAYAM AND 110 KV SHENBAGAPUDUR SS MAY AVAIL TOTAL SHUTDOWN

AS PER THE CE/D/Erode APPROVAL.No other SS will affected.

Possible Sat, 01-Apr-2017 9:00 Sat, 01-Apr-2017 17:00 1 0 Approved

8 Erode 230 KV Salem 400 KV230 KV Salem Steel Plant I # - Its CT,

BREAKER, BUS & LINE SWITCHESMonthly Maintenance Work

Ltd.,possible Sat, 01-Apr-2017 8:00 Sat, 01-Apr-2017 17:00 1 0 Approved

9 Erode 230 KV Salem 400 KV230 KV Salem Steel Plant I # - Its CT,

BREAKER, BUS & LINE SWITCHESMonthly Maintenance Work

Ltd.,

repeat of

52728Sat, 01-Apr-2017 8:00 Sat, 01-Apr-2017 14:00 1 0 Repeat

10 Madurai 110 KV VALUTHUR 230 KV110KV Valuthur - Perungulam feeder entire

and 110KV bus entire at Perungulam SS.

1.For attending breaker and it's CT's and isolators

Monthly Maintenance work at Valuthur SS.2.For

attending all 110KV bus isolators maintenance work

at Perungulam SS.

During the LC period 110KV VGTPS - Perungulam and 110KV Valuthur - Perungulam

feeders will be cut off from service. 110KV Arkay - Mandapam feeder will be up to

Mandapam SS only. Hence, there is 'no' supply interruption to 110KV Mandapam SS.

Total shut down will be availed at 110KV Perungulam SS.

POSSIBLE Sat, 01-Apr-2017 10:00 Sat, 01-Apr-2017 17:00 1sub to Total s/d of

perungulam ssApproved

11 Madurai 110 KV KARAIKUDI 230 KV On 110KV KKDI-VLDR # S/B KKDI & TVDI. Flashed over Disc replacement work.

During the L.C period the 110KV Amaravathipudur SS under TSD and the feeder will be

tied with grid through 110KV Devakottai feeder.Hence there will be no interruption of

Supply.


sub to Total s/d of

Amaravathipudur

ss

Approved

12 Madurai 110 KV KADALANGUDI 230 KV

110KV Kadalangudy- Neyveli TS I feeder

(line portion between 110KV Thirupanandal

SS and Srimushnam SS)

For Line premonsoon inspection and rectification

work.

No interruption to any SS. 110KV Jayankondam SS and Papakudy SS proposed to

shutdown. 110KV Kadalangudy- Neyveli TS I feeder will be in radial condition up to

110KV Thirupanandal SS.

POSSIBLE Sat, 01-Apr-2017 10:00 Sat, 01-Apr-2017 16:00 1 Sub to total s/d Approved

13 Chennai 230 KV TONDIARPET 230 KV 230 KV NCTPS-I FEEDERFOR REPLACEMENT OF LIFE SERVED 245V

BREAKER IN 230 KV NCTPS- I FEEDER

DURING THE PERIOD OF SHUTDOWN , EXCEPT 230 KV NCTPS-I FEEDER ALL

OTHER FEEDERS AND EQUIPMENTS WILL BE IN SERVICE.Pending Sat, 01-Apr-2017 06:00 Mon, 03-Apr-2017 16:00 3 Approved

14 Madurai 110 KV SEMBATTY 230 KV

(i) 110KV SBT - RNPM II # Bkr, CTs and

section bet. SBT and Gandhigramam SS(ii)

110KV SBT - Alundur # Bkr, CTs and section

bet. SBT and Thamaraipadi SS

1. Monthly maintenance work2. Tree cutting work

During the LC period,(i) Gandhigramam SS is availing total shutdown the feeder will be

radial from other end upto Gandhigramam SS.(ii) Sengurichi and Sendurai SS are

availing total shutdown, the feeder will be radial from other end upto Thamaraipadi

SS.Hence no interruption to any SS.


sub to load

condition and toal

s/d

Approved

15 Madurai 110 KV KAYATHAR 230 KV110KV KAYATHAR- EPPODUMVENDRAN

FEEDER ENDIRE LINE

FOR(tlc Work) stringing between tower loc 51/0 to

52/0 in the newly erected 230kv dc line from

Kayathar400KVSSto tuticorin autoSS Cross Over

the 110KV Kayathar-Eppodumvendran Feeder (For

Safety Purpose)

During the LC Period,There will be nosupply in entire line POSSIBLE Sat, 01-Apr-2017 9:00 Sat, 01-Apr-2017 17:00 1 0 Approved

16 Chennai 230 KV Thiruvalam 400 KV 230KV Thiruvalam Link -II Feeder Maintenance & GRT periodical Relay test 230 Kv Thiruvalam Link-II feeder kept off condition at both end. Posssible Sat, 01-Apr-2017 09:00 Sat, 01-Apr-2017 17:00 1Subject to load

conditionApproved

17 Erode 110 KV ARASUR 230 KVand Its CTs.

For Monthly maintenance work(Kallivelampatty SS

and Naranapuram SS total Shut down)

During the Line Clear period,1)Kallivelampatty SS and Naranapuram SS under total Shut

down.2) 110 KV KPR EHT (Kaniyur unit) and 110 KV Itchipatty ss will be fed through 110

KV Arasur-Kaniyur #.

possible Sat, 01-Apr-2017 9:00 Sat, 01-Apr-2017 12:00 1subject to tsd

being realizedApproved

TAMIL NADU TRANSMISSION CORPORATION LIMITED

Consolidation of LC for the month of April 2017 at 3rd TNSOCC Meeting

Transmission Lines / Elements Details Proposed Date & Time

18 Madurai 110 KV ALUNDUR 230 KV110KV Alundur - Thanjavur Feeder breaker

and CT's only.

a)Preventive Monthly maintenance work. b)Relay

testing work.

During the LC period, a)110KV Thanjavur- Alundur feeder radially from other end.

b)110KV Ambigapuram SS avail Total shutdown. c) All other 110 KV feeders will be in

service. c) There will be no interruption of supply to any other feeders & SS.

POSSIBLE Sat, 01-Apr-2017 9:00 Sat, 01-Apr-2017 17:00 1 0 Approved

19 Erode 110 KV ARASUR 230 KV

110 KV Asr-Palladam feeder Section between

Itchipatty SS,Naranapuram

SS,Kalivelampatty SS & 110 KV Palladam

SS

For PMI Works By AEE/L/PalladamDuring the LC period 110 KV Kalivelampatty SS and 110 KV Naranapuram SS availing

total shutdown.possible Sat, 01-Apr-2017 8:00 Sat, 01-Apr-2017 14:00 1

subject to tsd


20 Erode 110 KVKARIAMANGALAM 230

KV

110 KV Gurubarapally feeder breaker,CTs,

Line switch and Line Between 230 KV

Karimangalam SS - 110 KV Krishnagiri SS

Carryout Monthly Maintenance works by

Maintenance wing and Lines wing coconut tree

branch removal of line between 230 KV

Karimangalam SS - 110 KV Krishnagiri SS at Loc

No: (63-64) and Loc No: 34 - Disc Replacement.

110 KV Krishnagiri SS Availing total Shutdown and its Ideally charged feeder hence there

is no interruption of power supply.possible Sat, 01-Apr-2017 9:00 Sat, 01-Apr-2017 14:00 1

subject to

krishnagirir ss

availing tsd

Approved


110 KV Kadalangudi - Aduthurai - Neyveli

feeder(Line portion between 110 KV

Thiruppanandal SS and 110 KV Paappakudi

SS)

For premonsoon and rectification works by the

AEE/Lines/Thanjavur.POSSIBLE Sat, 01-Apr-2017 10:00 Sat, 01-Apr-2017 17:00 1 0 Approved

22 Erode 230 KV METTUR AUTO 230 KV 100MVA AUTO TRANSFORMER I OLTC OIL REPLACEMENT WORK During the LC PERIOD 100MVA AUTO TRANSFORMER II WILL BE IN SERVICE possible Sat, 01-Apr-2017 9:00 Sat, 01-Apr-2017 18:00 1

subject to the

other auto tr

loading limit

Approved

23 Madurai 230 KV THANJAVUR 230 KV100 MVA Auto Transformers-1 & 2, HV- 1 &

2, LV- 1 & 2 Breakers & CTs. (one by one)

1) Monthly maintenance works by the

AEE/Mtce/Thanjavur,2) Relay replacement works

(i.e. Transformer differential relay from static to

numerical) in Auto Transformer-2 by the

AEE/P&C/Thanjavur.

During the LC period,1) Thanjavur 110 KV Grid SS will avail shutdown in 33 KV

feeders,2) further only if required, 110 KV Thanjavur-NTKudi feeder's tie may be kept

opened at Thanjavur 230 KV SS for containing auto transformer's load,3) all 230 KV &

other 110 KV feeders will be in tied condition,4) no supply interruption to any SS.

NOT

POSSIBLESat, 01-Apr-2017 9:00 Sat, 01-Apr-2017 17:00 1

Additional Total

s/d may be

programmed

Not Approved

24 Erode 110 KV PALLADAM 230 KV

110 KV palladam - veerapandy feeder

breaker,CT's and line side isolator with line

up to Kalelampatty SS and Naranapuram SS

1).To carryout Monthly maintenance works by

AEE/maintenance/palladam2). To carryout

Premonsoon inspection on Lines by

AEE/Lines/Palladam

During the LC period 1). 110 KV Veerapandy SS availing Total shutdown2). No other Sub

station will be affectedpossible Sat, 01-Apr-2017 9:00 Sat, 01-Apr-2017 17:00 1

subject to

veerapandy ss

availing tsd

Approved

25 Erode 230 KV PALLADAM 230 KVAuto transformer I and its HV and LV side

breaker ,CT's and LAS

1).To carryout Monthly maintenance by

AEE/Maintenance/Palladam2). To carryout Annual

relay test by AEE/P&C/Palladam

During LC period 1).110 KV Veerapandy SS availing Total shutdown2). No other

substation will be affected3). 110 KV Pongalur SS will be fed from 230 KV Ingur SS if

load relief required

possible Sat, 01-Apr-2017 9:00 Sat, 01-Apr-2017 17:00 1subject to the tsd

reliefApproved

26 Erode 230 KV PALLADAM 230 KVAUTO TRANSFORMER I HV, LV

BREAKER,CT'S AND LASTO CARRYOUT MONTHLY MAINTENANCE WORK

1)110 KV VEERAPANDY SS,110 KV NARANAPURAM SS AND 110 KV

KALIVELAMPATTY SS AVAILING TOTAL SHUTDOWN2)OTHER THREE AUTO

TRANSOFORMERS WILL BE IN SERVICE 3)NO OTHER SS WILL BE AFFECTED

Possible Sat, 01-Apr-2017 9:00 Sat, 01-Apr-2017 17:00 1Subject to load

conditionApproved

27 Chennai 230 KV THIRUVALAM 230 KV

Differential relay by GRT Wing /Thiruvalam

and monthly maintenance work.ii) On 110KV

for fixing of O/L & E/L Relay in 110KV Vellore-

I Feeder and monthly maintenance workiii)

On 230KV Link-II Feeder Breaker and its

i))For fixing of Differential relay in Auto Tr-I AND

O/L&E/L Relay in 110KV Velore-I Feeder by GRT

Wing /Thiruvalam and monthly maintenance

work.ii)230KV Link-II Feeder for monthly

maintenance work

During the period of LC i)The 110KV Karnambut SS, 110KV Sathuvachari SS, 110KV

Arcot SS, of VEDC/Vellore are availing Total shutdown on 01.04.2017.The Total

Shutdown approved and concurrence obtained by Chief Engineer/Distribution / Vellore

IV,LV-IV will be in service and cater the SS Loads. iii)Auto-Tr-I ,HV-I,LV-I will be in

and 230KV Mosur feeders will be in service and cater the SS Loads. Hence there will be

no interruption of supply please.



110 KV Thiruvalam ï¿½ Vellore I feeder (In

between 230 KV Thiruvalam SS ï¿½ 110kv

Vellore SS).

For EHT Line Maintenance Works.110KV Karnambut SS, 110KV Sathuvachari SS, 110KV Arcot SS, are availing total

Shutdown.


29 Chennai 230 KV THIRUVALAM 230 KV 230KV Thiruvalam - Link II feeder.For replacement of chipped disc at loc: 7 & EHT Line

Maintenance Works.

• condition at 400KV Thiruvalam & 230KV Thiruvalam SS. ii. All other 230

KV feeders 230KV Link I, Mosur, Chittoor feeders are in service.Hence there will be no

interruption of supply please.

Possible

(Repeat)Sat, 01-Apr-2017 09:00 Sat, 01-Apr-2017 14:00 1

Subject to load

conditionApproved

30 Madurai 230 KVANUPPANKULAM 230

KV230KV Northern Bus entire.

For Removal of dropper jumper from Bus and line

side jumper of 230KV Anuppankulam - Kayathar

feeder (Augmentation of 100MVA to 160MVA Auto

Transformer work)

During the LC period, Auto Transformer-I,HV-I,LV-I will be under hand tripped condition

and 230KV Anuppankulam-Kayathar feeder &230KV Anuppankulam-Madurai feeder hand

tripped condition and Auto Transformer-II & III will be fed from 230KV Anuppankulam-

Sterlite source only.


Sub to submission

of BP copy for

230ANPM-KYR #

for Dismantling of

ISO

Approved

31 Erode 230 KVGURUPARAPALLI 230

KV

Auto I, HV I, LV I & Auto II, HV II, LV II and

110KV Karimangalam feeder Breaker ( One

by One)

Maintenance work in Auto I, Auto II, HV II, LV II and

110KV Karimangalam feeder Breaker (One by One)

110KV Karimangalam feeder, LV II and HV II Breakers will be Hand tripped. BS / Auto

side isolators of HV II, Bus side isolator of LV II, BS/LS isolators of Karimangalam feeder

Breaker to be opened. 110KV Krishnagiri SS avail total shut down as per approval

received from CE/D/Vellore. Hosur phase II and Shoolagiri 110KV SS will be fed by Auto

I. (After completion of maintenance works in Auto I side, then take LC in Auto II - HV & LV

maintenance works). Concurrence obtained from SE/O/Thiruvalam and

SE/KEDC/Krishnagiri)


conditionApproved

32 Erode 230 KV KUNDAH PH3 230KV KPH-3 Feeder to KPH4 Feeder230KV KPH3 Feeder to KPH4 Feeder Pre-Monsoon

Inspection work(PMI) and Maintenance work.Bus and Line both end open condition Earth switch closed condition. Possible Sat, 01-Apr-2017 9:00 Sat, 01-Apr-2017 17:00 1

Subject to load

conditionApproved

33 Chennai 110 KV THARAMANI 230 KV 110 KV Siruseri feeder Monthly Maintenance work Ideal feeder Possible Sat, 01-Apr-2017 09:00 Sat, 01-Apr-2017 17:00 1 0 Approved

34 Chennai 230 KV Alamathy 400 KV 230KV MANALI-1TO REPLACE THE DETECTIVE ISOLATER BOX

BY NEW ONE IN 'D' SWITCH

DURING THE ABOVE SHUTDOWN PERIOD 230KV ALAMATHY-MANALI-1 FEEDER

WILL NOT BE IN SERVICE.Possible Sun, 02-Apr-2017 09:00 Sun, 02-Apr-2017 17:00 1 To be discuss Approved

35 Erode

GENERATI

NG

STATIONS

KUNDAH PH3 Unit I For monthly maintenance work Unit under shutdown condition , SF6 breaker open condition possible Sun, 02-Apr-2017 8:00 Sun, 02-Apr-2017 17:00 1subject to the grid

conditionApproved

36 Erode

GENERATI

NG

STATIONS

METTUR TPHmachine 4 Generator,Power Transformers

and its Auxiliaries

For Machine 4 Individual spell Annual overhauling

works from 02.04.2017 to 21.04.2017 (20 Days)

During the above LC period 230KV MTPH-MTPS Feeder and 230KV MTPH-AUTO SS

Feeder will be in service and machine 1,2,3 &4 will be in common spell AOH works and

PWD Demand meet out by Dam power house units.

possible Sun, 02-Apr-2017 7:00 Tue, 04-Apr-2017 17:00 3approved

scheduleApproved

37 Chennai 230 KV KILPAUK 230 KV 100MVA Auto Transformer II Routine Maintenance work

During the period of shutdown 1)100MVA Auto Transformer I will be inservice. 2)110KV

AnnaNagar feeder loads to be transferred to 230KV Korattur SS feeding 3)110KV Cooks

Road feeder tie to be opened at kilpauk SS end & 110KV Cooks Road SS will be radially

fed by BBGTPS

Possible Sun, 02-Apr-2017 09:00 Sun, 02-Apr-2017 16:00 1 0 Approved

38 Erode 230 KV METTUR AUTO 230 KV 100MVA AUTO TRANSFORMER II OLTC OIL REPLACEMENT WORK DURING THE LC PERIOD 100MVA AUTO TRANSFORMER I WILL BE INSERVICE possible Sun, 02-Apr-2017 9:00 Sun, 02-Apr-2017 18:00 1

subject to the

other auto tr

loading limit

Approved

39 Erode

GENERATI

NG

STATIONS

KUNDAH PH2

UNIT-IV GENERATTOR SF6 BREAKER,

POWER TRANSFORMER AND ITS

ACCESSIORIES

FOR MONTHLY MAINTENANCE WORK SF6 BREAKER OFF IN CONDITION TOP AND BOTTOM BUS OPEN IN CONDITION Possible Sun, 02-Apr-2017 9:00 Sun, 02-Apr-2017 17:00 1 0 Approved

40 Erode

GENERATI

NG

STATIONS

KUNDAH PH1 UNIT NO: 1 FOR MONTHLY MAINTENANCE WORK DURING THE LC PERIOD UNIT NO 1 WILL BE UNDER NOT S/B CONDITION.. 0 Sun, 02-Apr-2017 8:00 Sun, 02-Apr-2017 17:00 1 0 Approved

41 Erode 230 KV Salem 400 KV230 KV Salem Steel Plant II # - Its CT,

BREAKER, BUS & LINE SWITCHESMonthly Maintenance Work postponed Mon, 03-Apr-2017 8:00 Mon, 03-Apr-2017 14:00 1

feeder 1 lc

recommendedApproved

42 Erode 110 KV GOBI 230 KV I.110 KV Gobi - Bhavanisagar feeder entire Line maintenance and tree cutting works

1.No SS will be affected during the LC Period.II.Nambiyur 110 KV SS,Karattupalayam

110 KV SS,Thoppampalayam 110 KV SS and Bhavanisagar 110 KV SS has programmed

Total Shut down on 03.04.2017

postponed Mon, 03-Apr-2017 10:00 Mon, 03-Apr-2017 16:00 1to be scheduled

on 03.04.2017Approved

43 Erode 230 KV MTPS MTPS-I to Anthiyur 230KV Feeder bay entire Monthly maintenance Programmed LC possible Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 17:00 1

subject to 230 kv

mtps 3 to gobi

feeder loading

condition

Approved

44 Erode 230 KV ANTHIYUR230KV 230KV MTPS-I entire feeder For monthly maintenance work MTPS-I end also programmed to avail LC on 03.04.17. 0 Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 16:00 1 0 Approved

45 Erode 230 KV ANTHIYUR 230 KV 230KV Bus section-II entire. For annual maintenance of 230KV Bus section -II

During the LC period 230KV MTPS-I feeder,Auto Transformer-II,and 230KV Bus coupler

breaker will be kept in hand tripped condition.MTPS-I end also programmed to avail LC in

230KV Anthiyur-MTPS-I feeder on 03.02.17.During the LC period Auto Transformer-I

along with 230KV Gobi feeder will be in service.

possible Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 16:00 1

subject to 230 kv

mtps 3 to gobi

feeder loading

condition

Approved

46 Madurai 230 KV PASUMALAI 230 KV1)230 KV Pasumalai - Checkanurani # - II

BKR & CT,LI only 2)Line Entire.

a)Maintenance Works of BKR & CT,LI Only.b)Tree

cutting worksEE / O / CKNI has also programmed POSSIBLE Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 14:00 1 0 Approved

47 Madurai 110 KV KODIKURICHY 230 KV

On 110KV Kodikurichi-Veerasigamani II #

Section between Kodikurichi-Veerasigamani-

Puliyangudi.

i) Monthly maintenance workii)For Replacement of

Defective Insulator at Various locations.

During LC period i)110 KV Veerasigamani # WFSS will be fed from Veerasigami-I # by

closing AB switch towards Veerasigamani at Echantha SS end. ii) 110KV Puliyangudi,

Naranapuram, Viswanathaperi SS will be fed from 110KV Nallamanaickenpatty SS by

closing AB switch towards Viswananthaperi SS at Nallamanaickenpatty SS end.

POSSIBLE Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 17:00 1 0 Approved

48 Madurai 230 KV SRPUDUR 230 KVOn 230 KV SR Puthur - Koodankulam feeder

breaker CT.Monthly Maintenance work

During the LC period 230 KV SR Puthur - Sankaneri feeder will be in service.Hence No

SS will be affected.POSSBLE Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 14:00 1

Sub to load

conditionApproved

49 Madurai 230 KV AMUTHAPURAM 230 KV230/33KV Power Transformer-1 HV,LV

Breakers with CT's and its 33KV feederMonthly Maintenance Work

1) During the LC period there will be NO supply in P.Tr-1 and its 33KV feeders. 2) If there

is wind generation its 33KV feeders paralleled with other power transformers. 3) No SS

will be affected. 4) Concurrence obtained from SE/NCES/TIN.

POSSIBLE Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 17:00 1 Sub to wind gen. Approved

50 Erode 110 KV GOBI 230 KV110 KV BHAVANI SAGAR FEEDER


FOR GRT RELAY TESTING WORK BY P&C/GOBI

AND FOR REPLACEMENT OF COMPRESSOR IN

SF6 BREAKER DUE TO AIR LEAKAGE

110 KV NAMBIYUR SS,110 KV KARATTUPALAYAM SS,110 KV BHAVANI SAGAR

SS,110 KV THOPPAMPALAYAM SS AND 110 KV THALAVADY SS MAY AVAIL TOTAL

SHUTDOWN AS PER CE/D/Erode APPROCVAL,NO OTHER SS WILL BE AFFECTED

possible Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 17:00 1subject to tsd


51 Erode 230 KV GOBI 230 KVAUTO TRANSFORMER I HV,LV BREAKER

AND CT'SFOR MONTHLY MAINTENANCE WORK

1.110 KV NAMBIYUR SS,110 KV KARATTUPALAYAM SS,110 KV BHAVANI SAGAR

SS,110 KV THOPPAMPALAYAM SS,110 KV GOBI SS AND 110 KV THALAVADY SS

MAY AVAIL TOTAL SHUTDOWN AS PER CE/D/Erode APPROCVAL,2.NO OTHER SS

WILL BE AFFECTED.3.AUTO TRANSFORMER II AND III ARE IN SERVICE,IT MAY

CATER THE LOAD



52 Madurai 110 KV ALAGARKOIL 230 KV110KV ALKL-Sempatty 2 # breaker with C.T

only.for monthly maintenance& GRT relay testing work

DURING THE L.C period the feeder will be radial from sempatty end ,hence there will be

no interruption of supply please.

NOT

POSSIBLEMon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 16:00 1

Due to 110 SBT-

ALKL# sec bw

V,kurumpapatty

and Natham LC

Subject to EE/SLDC

approval

53 Erode 230 KV UNJANAI 230 KV1. CAPACITOR NO :I BREAKER, CT'S AND

BANKSIDE ISOLATOR ONLYFOR MONTHLY MAINTENANCE WORK

DURING THE L.C PERIOD CAPACITOR BANK NO :II WILL CATER THE STATION

WAR LOADS.possible Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 15:00 1

subject to the

voltage profile in

the grid

Approved

54 Madurai 110 KV then I 230 KV110 kv theni-sempatty I & II Breaker with CT

one by one.monthly maintenance work. monthly maintenance work. POSSIBLE Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 17:00 1

SUB TO LOAD

CONDITIONApproved

55 Madurai 230 KVCHECKANURANI SW

STATION 230 KV230KV CKNI-Pasumalai-II feeder Entire

For Monhthly Maintenance work and Line

Maintenance WorkDuring LC Period there will be no supply in the entire feeder POSSIBLE Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 17:00 1 0 Approved

56 Madurai 230 KV kinnimangalam 230 KV AUTO TRANSFORMER 1 Monthly maintenance work Other 2 transformers will be in service and scatter the load POSSIBLE Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 13:00 1SUB TO LOAD

CONDITIONApproved

57 Madurai 230 KV kinnimangalam 230 KV AUTO TRANSFORMER 2 Monthly maintenance work other 2 auto transformers will be in service and scatter the load POSSIBLE Mon, 03-Apr-2017 14:00 Mon, 03-Apr-2017 17:00 1SUB TO LOAD

CONDITIONApproved

58 Madurai 110 KV KARAIKUDI 230 KV On 110KV Kanadukathan # Entire.

For Tower to Tower inspection work and to open

jumper for TLC work B/W Kanadukathan Tapping &

Thirumayam SS.

During the Lc Period (03.04.17 (08.00Hrs) to 05.04.16 (18.00Hrs) 110KV PDKT #'r S/B

Kanadukathan SS Tapping and Thirumayam SS for NHAI work by TLC Wing.). 110KV

Kanadukathan SS will be radially fed from 230KV SS KKDI SS. Hence there will be No

interruption of Supply.

NOT

POSSIBLEMon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 17:00 1

Sub to submission

of Approval copy

and drawing. LC

to be applied for 3

days

Approved Subject to

EE/SLDC/ Madurai

approval

59 Erode 400 KV MTPSII 230/400KV ICT-IMONTHLY MAINTENANCE WORKS AS

APPROVED BY OCC

UNIT IN SERVICE. ALL 400KV KARAMADAI-I&II ,PALAVADI-I&II FEEDER ARE IN

SERVICE. ALL 230KV FEEDERS MTPS-I,GOBI,METTUR AUTO AND STANDBY

TRANSFORMER EXCEPT THINGALUR FEEDER ARE IN SERVICE.

possible Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 17:00 1subject to the load

condition existingApproved

60 Madurai 110 KV TRICHY 230 KV

110KV TRICHY - ALUNDUR I Feeder

breaker, CTs and line isolators and line

entire. entire

0

During the LC period, a) The other end also availing LC on the same feeder. b) The

Intermediate 110 KV Ammapettai SS availing total shutdown for monthly maintenance

works. c) All other 110 kv feeders will be in tied condition. d) There will be no interruption

of supply to any of the SS.

POSSIBLE Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 16:00 1 sub to Total s/dApproved Subject to

load condition

61 Madurai 110 KV SURULIYAR110 KV Suruliyar - Vannathiparai feeder

breaker with CT and line side switchFor attending monthly maintenance work.

During the above period, Vannathiparai SS will avail total shut down. There is no other SS

in this feeder.POSSIBLE Mon, 03-Apr-2017 10:00 Mon, 03-Apr-2017 16:00 1 sub to Total s/d Approved

62 Erode 230 KVOTHAKKAL MANDABAM

230 KV

230 KV OKM-Palladam Feeder Entire

(Breaker, CT's, 89M1, 89M2 & 89L Isolators)

For Polluted disc replacement work by lines wing

and monthly maintenance works.During the LC period, the other 230 KV feeders are in service to cater the SS loads. possible Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 17:00 1 0 Approved

63 Erode 230 KV EACHANGADU 230 KV230 KV Bus Coupler Breaker & B'Bus CVT

OnlyMONTHLY MAINTENANCE WORK

230 KV Bus Coupler and B'Bus CVT are in stand by equipment since load flow does not

affected.POSSIBLE Mon, 03-Apr-2017 10:00 Mon, 03-Apr-2017 17:00 1 0 Approved

64 Madurai 110 KV SEMBATTY 230 KV110KV SBT - Alagarkovil II # section bet.

V.K.Patti and Natham SSTree cutting work

During the LC period the feeder will be radial from SBT upto V.K.Patti SS and radial from

other end upto Natham SS. Hence no interruption to any SS.POSSIBLE Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 17:00 1 0 Approved

65 Madurai 230 KV KADALANGUDI 230 KV 230KV Kadalangudy- PPN I feeder entire

1)Line inspection and rectification work

2)Maintenance work 3)Relay testing work at

Kadalangudy SS end. 4)Relay testing work at PPN

plant end.

No interruption to any SS. All other feeders will be in tied condition. PPN Plant is under

shutdown.POSSIBLE Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 17:00 1 0 Approved

66 Chennai 110 KV KORATTUR 230 KV 110 Kv Tondiarpet - Vyaserpadi I feeder Jumper tightness at various locations110 KV Tondiarpet - Vyaserpadi I feeder load will be transfer to 110 KV Tondiarpet -

Vyaserpadi II feederPossible Mon, 03-Apr-2017 09:00 Mon, 03-Apr-2017 17:00 1

Subject to CBD

concurrenceApproved

67 Madurai 230 KVTUTICORIN -SIPCOT

230 KV

On 230KV Main Bus entire (both Bus section

I & II with PT-I&II)

i) For the transportation of 3Nos. 230KV New PTs to

working spot ii) Dismantling of existing 230KV 'Y'

Phase PT (Grompton Greaves Make) iii) Erection of

3Nos. Mehru make 230KV PTs and its Droppers and

Jumpers etc. iv) Secondary connection and testing

by P&C wing. v) lubricating of (4Nos.) 3A,4A,5A and

Bus section-II (BCS-II) 230KV AB switches.

i) During the LC period, all the 230KV feeders will be in OFF condition at both the ends

and Auto-I&II will be in tripped condition at 230KV Sipcot SS end and all 110KV feeders

and 110KV Bus will in service for the grid stability purpose. ii) M/s.

IBPGCL/Velayuthapuram generation will be in shutdown condition and M/s. IBTPL/

Samynatham unit is already under shutdown condition and necessary consent obtained

from M/s. Ind.Bharat plants and no ss will be affected please.

POSSIBLE Mon, 03-Apr-2017 6:00 Mon, 03-Apr-2017 18:00 1

Sub Total s/d of

inter ss to manage

the Load.

Subject to Total

shutdown

68 Erode 230 KV UDUMALPET 230 KVAUTO TRANSFORMER II ,HV II & LV II

COMPLETEFOR MONTHLY MAINTENANCE WORKS 3 AUTOS ARE IN PARALLEL . LOADS ARE SHARED WITH OTHER TWO AUTOS. possible Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 17:00 1

subject to the

other auto trs

loading limit

Approved

69 Erode 230 KV METTUR AUTO 230 KV 230KV MTPS-I- Anthiyur feeder EntireJumper cone Tightness Checking at MTPS-I-

Anthiyur BayProgrammed LC at MTPS-I on 03.04.2017 possible Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 14:00 1

subject to 230 kv

mtps 3 to gobi

feeder loading

condition

Approved

70 Erode 110 KV Udumalpet 110 KV Monthly Maintenance workDuring LC period there is no SS will be affected since there is inter connected SS fed from

other end.possible Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 17:00 1 0 Approved

71 Madurai 110 KV SAMAYAPURAM 230 KV110 KV SMPM-Kallakudi -I # CT's , Breakers

and entire line portion (tied feeder) .Monthly Maintenance Works and Line Patrol Work.

1. During the above LC Period, 110Kv Kallakudy I # Breaker is in H/T condition at 230KV

Tahtchankurichy SS . 2.110Kv Thatchankurichy I# Breaker is in H/T condition at 110KV

kallakudy Grid SS. 3.Bus and Line Isolator towards 110KV Kallakudy Grid SS will be kept

in open condition at 230KV Thatchankurichy SS. 4.Line Isolator towards 230KV

Thatchankurichy SS will be kept in open condition at 110KV Kallakudy Grid SS. 5. Earth

switch will be kept in closed condition at 110Kv Kallakudy grid ss and 230KV

Thatchankurichy SS. 6.110 KV Kallakudi-II # will be in tied condition. 7.There will be no

interruption to any other SS.


72 Erode 110 KV ARASUR 230 KV 110 KV CB-I Breaker,CTs and Cell units. For Monthly maintenance workDuring the Line Clear period,1)remaining 2 numbers 24 MVAR Capacitor banks will be in

service.possible Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 15:00 1

subject to the

voltage profile in

the grid

Approved

73 Chennai 230 KV Tondiarpet 230KV TONDIARPET - NCTPS Stage I-1 Jumper tightness. Tower to tower inspection. All other feeder in service. Possible Mon, 03-Apr-2017 05:00 Tue, 04-Apr-2017 10:00 2 To be discuss

Already approved

from 1st April 2017

to 3rd April 2017

74 Madurai 230 KV ALUNDUR 230 KV110KV Alundur - Trichy- Feeder breaker,CT's,

and Line Isolators.

a) Preventive Monthly maintenance work. c)

Premonsoon inspection and Tree cutting work.

B)Relay testing work.

During the LC period, a) Intermediate 110KV Ammapettai SS Also avail total shut down.

b) All other 110 KV feeders will be in service c)There will be no interruption of supply to

any other feeder's and ss.

POSSIBLE Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 17:00 1 Sub to Total s/d Approved

75 Erode 110 KV UNJANAI 230 KVUnjanai-BKB III 110 KV # line portion (i)

TLC work for conversion of Nallur non grid SS to

and stringing of line between tower no 50/56 and

new tower(2)structure, breaker, CT and Line VT

erection work at Nallur SS towards BKB III and

Jedarpalayam by SSE/Salem.(3). After completion

of TLC work on 04.04.17, the BKB III supply will be

extended up to Jedarpalayam SS by looping the

Nallur- BKB III and Nallur-Jedarpalayam line at

Nallur SS at newly erected terminal tower. 4)

Looping will be removed on completion of SSE

works on 12.04.2017.

(1)Line portion between Nallur and BKB III, Nallur and Jedarpalayam will be opened.

(2)Jedarpalayam SS will be fed from Pugalur-K.malai #.possible Mon, 03-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 8

long lc subject to

approval of se ld &

go chennai

Approved

76 Erode 110 KV Singarapet 110 KV

110 KV ARNI # II, SF6 BKr, CTs & Line

Isolator (Now radially charged from

Singarapet end)

Monthly maintenance work and Line maintenance

work

During the LC period 110KV Arani II # breaker will be in hand trip condition & already

breaker in handtrip condition at Arani end, hence no interrption of supply0 Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 15:00 1 0 Approved

77 Chennai 110 KVGUMMIDIPOONDI 230

KV110KV SIPCOT I FEEDER BAY

GRT Annual Relay Test in Tulsian 110KV Feeder at

110kv Sipcot IV SS end and monthly maintenance

work at 230KV Gummidipoondi SS

Concurance to be obtained from M/c. Tulsian consumers during the periond of shutdown

ni export from 110KV Tulsian Private generationPossible Mon, 03-Apr-2017 10:00 Mon, 03-Apr-2017 17:00 1

Subject to

M/c.Tulsian

concurrence

Approved

78 Erode 110 KV GOBI 230 KV I.110 KV Gobi - Bhavanisagar feeder entire Line maintenance and tree cutting works

I.No SS will be affected during the LC Period.II.Nambiyur 110 KV SS,Karattupalayam 110

KV SS ,Thoppampalayam 110 KV SS and Bhavanisagar 110 KV SS has programmed

total shut on 03.04.2017



79 Erode 110 KV GOBI 230 KVI.110 KV BHAVANISAGAR - BHAVNISAGAR

MICRO POWER HOUSE FEEDER ENTIRE

LINE MAINTENANCE AND TREE CUTTING

WORKS

I.NO SS WILL BE AFFECTED DURING THE LC PERIOD.II. BHAVANISAGAR 110 KV

SS HAS PROGRAMMED TOTAL SHUTDOWN ON 03.04.2017III. SARADHA CO GEN

PLANT GENERATION NIL



80 Madurai 110 KVNEMALITHIPIYAKUDI

230 KV

110KV PATTUKKOTTAI-MADUKKUR

FEEDER (VIA: 110/11KV PATTUKKOTTAI

URBAN SS), LINE PORTION BETWEEN

110KV PATTUKKOTTAI SS TO 110KV

PATTUKKOTTAI URBAN SS.

FOR PREMONSOON INSPECTION BY

AE/LINES/PATTUKKOTTAI.

1) DURING THE LC PERIOD, 110KV PATTUKKOTTAI URBAN SS SUPPLY WILL BE

FED FROM 110KV MADUKKUR SS BY CLOSING THE 110KV LINE ISOLATOR (NO.2)

TOWARDS PATTUKKOTTAI AT 110KV MADUKKUR SS.2) NO INTERRUPTION TO

ANY SUBSTATION. 3) 110KV PATTUKKOTTAI- MADUKKUR FEEDER BREAKER HAND

TRIPPED AT 110KV PATTUKKOTTAI SS.


81 Erode 230 KV PALLADAM 230 KVAuto Transformer IV and its breaker,CT's and

LAS

To attend the raising and over flow of oil in OLTC

conservator problem in the Auto Transformer IV, the

work will be attended by the manufacturer M/s.BHEL

During LC period 1).110 KV Muthalipalayam SS will be fed from 230 KV Ingur SS and

2).110 KV Palladam SS will be fed from 230 KV Arasur SSpossible Mon, 03-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 5

subject to the load

transfers being

effected

Approved

82 Erode 230 KV PALLADAM 230 KV230 KV Palladam - Othakalmandapam feeder

breaker,CT's and Line isolator with line entire

1). To carry out Monthly Maintenance by

AEE/Maintenance/Palladam2). To carryout

Premonsoon inspection in the Line by

AEE/Lines/Palladam

During the LC period 1)other 2Nos 230 KV feeders will be in service2). No other sub

station will be affected3). Other end also availing LCpossible Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 17:00 1 0 Approved

83 Chennai 230 KV Ulundurpet 230 KV 230/110KV Auto Transformer Total shutdown monthly maintenance work.

230/110KV Auto Transformer,HV,LV Breakers,Isolators maintenance work,on that day

Ulundurpet 110/33 KV SS Load will be fed by Villupuram Auto ss roughly about 24 MW&

ko-poovanur ss load will be fed by Neyveli TS I-Deviyakurichi feeder.M/S Dharani sugars

co-generation plant will be instructed to go home load. On this day it is programmed by

GRT/Villupuram to carryout the aunnual relay test for the auto transformer and allied

equipments. 110KV Thiyagadurugam ss,110KV Nagalur ss and 110KV Pillaiyarkuppam

ss proposed to carried out total shutdown work.

Possible Mon, 03-Apr-2017 09:00 Mon, 03-Apr-2017 17:00 1 0 Approved

84 Chennai 230 KV SPKoil230 KV 230 KV Kalpakkam feeder 1 Quartely Maintenance Work Possible Mon, 03-Apr-2017 09:00 Mon, 03-Apr-2017 17:00 1 0 Approved


KV

100 MVA AUTO TR. II & III,HV-II & III and LV-

II & III Breaker with CT one by one.For Monthly Maintenance Work.

Durin the LC period the Auto Tr. I & III will cater the load of Auto Tr. II and Auto Tr. I & II

will cater the load of Auto Tr. III. Hence No SS affected.POSSIBLE Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 17:00 1

sub to load

conditionApproved


230 KV230 KV TBC Breaker (89M & 89L Isolators) for monthly maintenance works. Already the TBC breaker under isolated condition. postponed Mon, 03-Apr-2017 9:00 Mon, 03-Apr-2017 17:00 1

substituted for 230

kv palladam

feeder breaker

Approved

87 Chennai 230 KV KORATTUR 230 KV 230 KV Korattur - Manali feeder Jumper tightness at various locations. all other feeders will be in service Postponed Tue, 04-Apr-2017 10:00 Tue, 04-Apr-2017 17:00 1 Approved

88 Chennai 230 KV KORATTUR 230 KV 230 KV Korattur - Manali feeder Jumper tightness at various locations. all other feeders will be in service Postponed Tue, 04-Apr-2017 09:00 Tue, 04-Apr-2017 17:00 1 Approved

89 Madurai 230 KV VEERANAM 230 KVPower Transformer-I,HV-I,LV-I and 33Kv

Feeders Micon-3,4&5For Quarterly and Monthly Maintenance Works

During the LC Period there will be no supply in Power Transformer-I,HV-I,LV-I and 33Kv

Feeders Micon-3,4&5.concurrence obtained from SE/NCES/TIRUNELVELI.POSSIBLE Tue, 04-Apr-2017 10:00 Tue, 04-Apr-2017 17:00 1 sub to wind gen Approved

90 Madurai 230 KV KAYATHAR 230 KVOn 230/110KV Kayathar - Auto Transformer-

II HV-II & LV-II breaker with CT only.For monthly maintenance work

During the LC period, Auto Transformer-I & Auto Transformer-III will cater all the loads of

Auto Tranformer-II Hence no SS affectedPOSSIBLE Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 12:00 1

sub to load

condiitonApproved

91 Chennai 230 KV THIRUVERKADU 230 KV 230/110KV, 100 MVA Auto Transformer II For routine monthly maintenance work.During the period of shutdown 230/110KV, 100 MVA Auto Transformer I will be in service,

hence no interruption.Possible Tue, 04-Apr-2017 10:00 Tue, 04-Apr-2017 17:00 1 0 Approved

92 Madurai 230 KV Kodikurichy230kv230KV Amuthapuram # I Breaker with C.T

and all Isolators.Monthly maintenance work.

EE/O/Amuthapuram has also applied LC on 230KV Amuthapuram # I breaker on the

same day 04.04.2017POSSIBLE Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1 0 Approved

93 Chennai 400 KVSunguvarchatram 400

KV400KV BUS-1 ENTIRE Monthly maintenance work

During the LC Period 1.400KV Bus-1 in OFF condition,2.400KV Pondi Feeder breaker

and 400KV NCTPS-Stg 2 breaker in trip condition, Supply will feed through Tie-1 and Tie-

2 Breakers Respectively3.Alamathi-2 feeder 2 in OFF condition,5.HV-1 Breaker and HV-3

Breaker in Trip condition,supply will feed through Tie-3 and Tie-4 for Auto Transformers

1&3.

Posssible OCC

Appd. 129/115Tue, 04-Apr-2017 09:00 Tue, 04-Apr-2017 17:00 1 0 Approved

94 Erode 110 KV Erode 110 KV110 KV CAPACITOR BANK I BREAKER, CT

AND ITS CELLS

CONDUCTING OF ANNUAL RELAY TEST BY

AEE/P&C-I /ERODE AND MONTHLY

MAINTENANCE WORK.

DURING LC PERIOD NO SS WILL BE AFFECTED. NECESSARY CONCURRENCE

OBTAINED FROM SE/EEDC/ERODE.possible Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 14:00 1

subject to the

voltage profile in

the grid

Approved

95 Madurai 230 KV AMUTHAPURAM 230 KVAmuthapuran-Kodikurichi-1 230KV

#,breakers,CT's and its isolatorsMonthly Maintenance Work

1) During the LC period there will be NO supply in this feeder. 2) Other End also avail LC

on same day. 3) Cocurrence obtained from SE/NCES/TIN.POSSIBLE Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1 0 Approved

96 Erode 230 KV GOBI 230 KV CAPACITOR BANK I BREAKER AND CT'S FOR MONTHLY MAINTENANCE WORK CAPACITOR II IS IN SERVICE AND SUBJECT TO THE VOLTAGE CONDITION possible Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1

subject to the

voltage profile in

the grid

Approved

97 Madurai 230 KV ALAGARKOIL 230 KV230KV ALKL-Alundur feeder breaker CT,Line

CVT &Line entire.for monthly maintenance &tree clearence wo9rk.

During the L.C period the 230KV Supply will be fed from 230KV other feeder , other end

also proposed L.C, hence there will be no interruption of supply please.POSSIBLE Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 16:00 1 0 Approved

98 Madurai 110 KV then I 230 KV

110 KV THENI-SEMPATTY I # LINE

SECTION BETWEEN M.PURAI SS &

AYAMPALAYAM SS.(R/F THENI)

LINE MONTHLY MAINTEANCE AND

PREMONSOON INSPECTION.

BATLAGUNDU AND VAIGAI SS LOADS WILL BE TRANSFERRED TO SEMPATTY II

FEEDER.POSSIBLE Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1

sub to load

conditionApproved

99 Chennai 230 KV KORATTUR 230 KV50MVA 110/33KV POWER TRANSFOMER -

IIGeneral Maintenance work 50MVA 110/33KV Power Transformer - I will be in service.

Possible with

CBD

Concurrence

Tue, 04-Apr-2017 09:00 Tue, 04-Apr-2017 17:00 1 0 Approved

100 Erode 230 KV Salem 400 KV230 KV Singapuram # - Its CTs, BREAKER,

BUS & LINE SWITCHES)Both end Monthly Maintenance Work Both end Monthly Maintenance Work possible Tue, 04-Apr-2017 8:00 Tue, 04-Apr-2017 14:00 1

subject to the load


101 Madurai 110 KV VALUTHUR 230 KV110KV Arkay - Mandapam - Perungulam

feeder entire.Tree cuttng work During the LC period 110KV Mandapam SS will be availed total shut down. POSSIBLE Tue, 04-Apr-2017 10:00 Tue, 04-Apr-2017 17:00 1 sub to total s/d Approved

102 Madurai 230 KV KAVANOOR 230 KV 230 KV KAVANOOR-KARAIKUDI #1MONTHLY MAINTENANCE WORKS AND LINE

MAINTENANCE WORKSSINCE BOTH ENDS LC TO BE AVAILED NO SUPPLY IN THE FEEDER POSSIBLE Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1 0 Approved

103 Erode 110 KVPUDHANCHANTHAI 230

KV

110KV Namagiripet feeder CB, CTs and Line

Switch.For regular maintenance works. During LC period110KV Namagiripet SS availing Total Shut down.No supply interruption. possible Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 15:00 1

subject to

namagiripettai ss

availing tsd

Approved

104 Madurai 230 KV KARAIKUDI 230 KVOn 1)230KV KKDI - KVNR- I #'r Breaker &

Ct's & 2)230KV KKDI - KVNR -I #'r Entire.1) For Monthly Mtc work.2) For Tree Cutting.

During the Lc Period all other 230KV #'s tied with Grid. Hence there will be no interruption

of Supply.POSSIBLE Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1 0 Approved

105 Madurai 230 KV kinnimangalam 230 KV Auto transformer 3 Monthly maintenance work Other 2 transformers will be in service and scatter the load POSSIBLE Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 13:00 1sub to load

conditionApproved

106 Madurai 110 KV KADALANGUDI 230 KV110KV Kadalangudy- Vaitheeswaran koil

feeder entire


2)Maintenance work

No interruption to any SS. 110KV Nidur SS proposed to shutdown. All other feeders will

be in tied condition.POSSIBLE Tue, 04-Apr-2017 10:00 Tue, 04-Apr-2017 16:00 1 sub to total s/d Approved

107 Madurai 110 KV PASUMALAI 230 KV

110KV Pasumalai - Alagarkoil -1 # BKR &

CT,LI . 2. Line LC Section between

Pasumalai - Avaniyapuram SS.

1)Maintenance Works of BKR & CT, LI 2)Tree

Cutting works

1) The Feeder will be kept radial from Alagarkoil SS upto Vandiyur SS feeding Othkadai,

IT Park, Industrial Estate SS 2)110/33-11 KV Anupanadi SS Loads will be transferred to

110KV Pasumalai - Sakthisugars feeder radial feeding Villapuram SS .3) Avaniyapuram

SS will be under shutdown

POSSIBLE Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 14:00 1sub to total s/d of

Avaniyapuram ssApproved

108 Erode 110 KV METTUR DPH 110 KV AUTO SS FEEDER 1 MONTHLY MAINTENANCE WORKS THE OTHER END WILL BE IN SERVICE possible Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 15:00 1subject to the load



230 KV

110 KV OKM-Thudiyalur I Feeder (Breaker,

CT's & Line switch)for monthly maintenance works.

During the LC period, 110 KV OKM-Thudiyalur I feeder loads will be transferred to 230KV

TDLR SS. Hence, No SS will be affected.possible Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 14:00 1

subject to the

feeder being kept

radial from tdlr ss

end

Approved

110 Chennai 230 KV TONDIARPET 230 KV 230 KV MANALI FEEDER FOR ROUTINE MAINTENANCE WORKSDURING THE PERIOD OF SHUTDOWN , EXCEPT 230 KV MANALI FEEDER ALL

OTHER FEEDERS AND EQUIPMENTS WILL BE IN SERVICE.Possible Tue, 04-Apr-2017 10:00 Tue, 04-Apr-2017 15:00 1 0 Approved

111 Madurai 110 KV SEMBATTY 230 KV110KV SBT - RNPM III # Bkr, CTs, relays

and sec. bet. SBT and Vittalnayakanpatti SS1. Monthly maintenance work2. Tree cutting work

During the LC period, Thadicombu SS is availing total shutdown and V.N.Patti SS will be

fed by RNPM end. Hence no interruption to any SS.POSSIBLE Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1

sub to total s/s of

Thadicombu ssApproved

112 Madurai 110 KV KAYATHAR 230 KV110 Kv Kayathar-Papanasam feeder sec b/w

rastha &ppm

For Jumper tightness work & Defective disc

replacement at various location.Duting the LC Period,Rastha SS will be radially fed from Kythr SS POSSIBLE Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1

The feeder to be

radial from KDKRI

upto Kadayam

and radial from

KYR upto Rastha

Approved

113 Erode 110 KV DEVIAKURICHI 230 KV110 KV Thalaivasal Feeder Breaker, CTs and

Line IsolatorFor Monthly Maintenance work 110KV Thalaivasal SS availing total shutdown. possible Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1

subject to

thalaivasal ss

availing tsd

Approved

114 Madurai 230 KV KADALANGUDI 230 KV 230KV Kadalangudy- PPN II feeder entire



Kadalangudy end. 4)Relay testing work at Plant end.

No interruption to any SS. All other feeders will be in tied condition. PPN Plant is under

shutdown.POSSIBLE Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1 0 Approved

115 Chennai 110 KV KORATTUR 230 KV 110 KV Tondiarpet- Vysarpadi II feeder Jumper Tightness at various Location110 KV Tondiarpet - Vyaserpadi II feeder load will be transfer to 110 KV Tondiarpet -

Vyaserpadi I feeder

Possible with

CBD

Concurrence


116 Erode 110 KV UDUMALPET 230 KV

110KV SEMPATTY FEEDER BREAKER AND

LINE SECTION BETWEEN UDT &

ELAYAMUTHUR SS

FOR MONTHLY MAINTENANCE WORKSDURING LC PERIOD SEC BETWEEN SEMPATTY & ELAYAMUTHUR FED FROM

230KVSS SEMPATTY0 Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1 0

Subject to

EE/SLDC/Madurai

approval

117 Madurai 400 KV kamuthi 400 KV 400KV ICT 1 MONTHLY MAINTENANCE WORK NO FEEDERS AT 230KV SIDE SO NO EQUIPMENT AFFECTED POSSIBLE Tue, 04-Apr-2017 10:00 Tue, 04-Apr-2017 17:00 1App in 129

occ/113Approved

118 Chennai 230 KV ACHRAPAKKAM 230 KV230KV ACK-VILLUPURAM FEEDER

BREAKER & CT'STO CARRYOUT MONTHLY MAINTENANCE WORK

1.230KV KALPAKKAM FEEDER BREAKER WILL BE IN SERVICE.2.HENCE NO

INTERUPTION OF POWER SUPPLY.Possible Tue, 04-Apr-2017 09:00 Tue, 04-Apr-2017 16:00 1 0 Approved

119 Erode 110 KV THUDIALUR 230 KV 110KV Sandinallah feeder breaker & CTs For monthly maintenance & annual relay testing Feeder will be radial from other end possible Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 15:00 1subject to the load


120 Erode 230 KVSADAYAMPALAYAM 230

KV

Power transformer No III HV breaker CT's &

IsolatorsAnnual relay testing work by P&C Palladam.

Power transformer No I,II & IV in service. Power transformer III loads will be fed from

Power transformer IV.possible Tue, 04-Apr-2017 10:00 Tue, 04-Apr-2017 17:00 1

subject to power

transformer 4

loading limit

Approved

121 Erode 110 KV PONNAPURAM 230 KV110 KV Ponnapuram - Maruthur # Breaker,

CTs & Line up to Maruthur SSFOR MONTHLY MAINTENANCE WORK

1. 110KV KARADIBHAVI SS AND SALAIPUTHUR SS WILL BE AVAIL TOTAL

SHUTDOWN ON 04.04.2017,2. 110KV MARUTHUE # WILL BE KEPT RADIAL FROM

230KV PALLADAM SS / 110KV PALLADAM # UPTO MARUTHUR SSHENCE NO SS

WILL BE AFFECTED.

possible Tue, 04-Apr-2017 10:00 Tue, 04-Apr-2017 17:00 1

subject to the

feeder being kept

radial from

palladam ss end

after tsd relief

Approved

122 Erode 230 KV SINGARAPET 230 KV 230KV South BusTo carry maintenance work by AEE/MTC/230 KV SS

/ SPT

During the LC perioda). 230 KV Salem #, 230 KV Tiruvannamalai #, 230 KV Arani #

Breakers will be in off condition at Singarapet end and radially charged condition from

respective other end. b). 230 KV MTPS, 230KV Vinnamangalam, 230 KV Thiruvalam and

hand trip condition.d). 230KV GC Breaker and All Auto Transformers will be in service.e).

All 110KV feeders will be in service. hence no interruption of supply

possible Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1subject to the load


123 Madurai 110 KV SAMAYAPURAM 230 KV

110KV Samayapuram - Trichy Grid feeder

line portion between 230KV Thatchankurichy

SS and 110KV Poovalur SS.

For premansoon EHT line inspection work.

During the above period of shut down a)110KV Poovalur SS avail Total shutdown on the

same day. b)110KV Thennur SS,110KV T.V.Koil SS, 110KV Valady SS,M/s.Kothari EHT

sc. will be fed radially from 110KV Trichy Grid SS. C). The line Isolator towards 230KV

Thatchankurichy SS at 110KV Poovalur ss will be Kept opened and earth switch closed.

d)The line Isolator towards 110KV Poovalur ss at 230KV Thatchankurichy SS will be Kept

opened and earth switch closed. e)Necessary concurrence has been obtained from

M/s.Kothari EHT Service for the interuptions during the switching operations. f)There will

be no interuption to any other SS/EHT consumers.

POSSIBLE Tue, 04-Apr-2017 10:00 Tue, 04-Apr-2017 17:00 1 0 Approved


For Monthly maintenance workDuring the Line Clear period, 110 KV Arasur- Thudialur # Radial from 230 KV Thudialur

SS .possible Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 15:00 1

subject to the

feeder being kept

radial from tdlr ss

end

Approved

125 Madurai 230 KV ALUNDUR 230 KVL.C. on 230KV Alundur - Alagarkoil Feeder

Breaker,CT's CVT's and Line Isolators.

a) Preventive Monthly Maintenance Work b) Relay

testing Work c) Premonsoon Inspection Work.

During the LC period, a) 230KV Alundur - Alagarkoil feeder both end availing Total Shut

down. b) All other 230 KV feeder's will be in service. c) There will be no interruption of

supply to any other feeders & ss.


126 Erode 110 KV UNJANAI 230 KV 1) Jumper Tightness Checking work Jeedarpalayam SS availing total shutdown. possible Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1

subject to

jedarpalayam ss

availing tsd

Approved

127 Erode 230 KV SALEM AUTO 230 KV100MVA Auto Transformer-III, HV-III, LV-III

Breakers & their CTsMonthly Maintenance work.

1. 2Nos. 100MVA Auto Transformer-I & II will be in service and adequate to fed Salem

load. 2. There will be no interruption to any SS or feeder.possible Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1

subject to the

other auto trs

loading limit

Approved

128 Madurai 400 KV Kayathar 400 KV

400kv karaikudi-1 feeder Main Breaker (407-

52) Reactor Breaker (407-52R),Reactor & CT

only

Monthly Maintenance work onlyDuring the LC period there will be no supply in 400kv karaikudi-1 feeder Main Breaker

(407-52) Reactor Breaker (407-52R),Reactor & CT hence no substation affected.POSSIBLE Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1

App in 129

occ/114Approved

129 Erode 110 KV INGUR 230 KVLine side Isolator

MONTHLY MAINTENANCE WORKS SIPCOT - II TOTAL SHUT DOWN ON THAT DAY possible Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 14:00 1

subject to sipcot 2

tsd and the rest of

the loads being

fed from palladam

ss

Approved

130 Chennai 110 KV VEERAPURAM 230 KV 110 KV Thiruporur feederAnnual relay test, Tandelta test, Equipment

Maintenance , Line maintenance

1.Total shutdown approval in 110KV Anjur,110KV Thirukalukundram,110KV

Thiruporur,110KV Alathur, as per SE/CEDC/Chengalpattu.2.Back feeding supply to M/S

Orchid chemicals may be arranged through 110KV Siruseri feeder from 230 KV S.P.Koil

SS.

Possible Tue, 04-Apr-2017 09:00 Tue, 04-Apr-2017 14:00 1

Subject to

concurrence of

M/S Orchid

chemicals

Approved

131 Chennai 110 KV MANALI 230 KV 110kv ETPS-2 and 110kv MFL-1 feeders For repair work in 110kv Interlink switch 110kv ETPS-2 and 110kv MFL-1 feeders will not be in service Possible Tue, 04-Apr-2017 10:00 Tue, 04-Apr-2017 17:00 1 0 Approved

132 Erode 110 KV PONNAPURAM 230 KV110 KV Maruthur # section between 110KV

Kethanur, Kaniyur and Karadubavi SSFor P.M.I works by lines/Pdm wing.

1. 110KV KARADIBAVI & SALAIPUTHUR SS WILL AVAIL TOTAL SHUTDOWN ON

04.04.2017,2. 11OKV MARHTHUR # WILL BE KEPT RADIAL FROM 230KV

PALLADAM/110 KV PALLADAM # UPTO 110KV MARUTHUR SS,3. HENCE NO SS

WILL AFFECTED

0 Tue, 04-Apr-2017 10:00 Tue, 04-Apr-2017 17:00 1 0Subject to Load

condition

133 Erode 230 KV SALEM AUTO 230 KV230KV KR THOPPUR-Singapuram feeder

entireRailway crossing jumpers checking.

1) 230KV KR Thoppur -Singapuram feeder breakers kept hand tripped at KR Thoppur

400KV SS and Singapuram 230KV SS,2) There will be no supply in 230KV KR

THOPPUR-Singapuram feeder entire,3) KR Thoppur 400KV SS and Singapuram 230KV

SS are availing breaker and line switches LC on that day.4) There will be no interruption

of supply to any SS.

possible Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1subject to the load



230 KV

110KV Pattukkottai-Karambayam-N.T.kudi-II

feeder (line portion between pattukkottai ss to

karambayam 110kv ss)

For Premonsoon inspection work by AE Lines

pattukkottai

1) During the LC period 110 KV N.T.kudi-pattukkottai-I feeder in service.2) If necessary,

110KV Pattukkottai SS will be fed from Kovilkalappal by closing 110KV line isolator No.2

at Madukkur SS (Kovilkalappal-Madukkur-Pattukkottai) and 110KV Madukkur feeder

Breaker hand tripped at 230KV Nemmeli Thippiyakudi SS. 3) 110KV KARAMBAYAM SS

Radially fed from 230KV N T KUDI SS.4) 110KV NT KUDI-II Feeder Breaker Hand

Tripped condition at 110KV Pattukkottai SS.

POSSIBLE Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1sub to load

condiitonApproved

135 Madurai 110 KV THANJAVUR 230 KV110 KV Thanjavur Link - 1 & 2 feeders'

breakers, CTs & LIs(one after another)

For monthly maintenance works by the

AEE/Mtce/Thanjavur.

During the LC period,1) the other end (i.e. Thanjavur 110 KV Grid SS) will avail LC on the

same day, 2) all other 110 KV feeders will be in tied condition, 3) 110 KV Ayyempettai SS

will avail shutdown on the same day,4) no supply interruption to any SS.


condiitonApproved

136 Erode 110 KV SALEM AUTO 230 KV

110KV Deviakurichi-Thammampatty

Feeder(Section Between Thammampatty

110KV SS - Namagripet 110KV SS)

Road crossing & loc no.40-60 jumpers checking.

1)Mettla 110KV SS will be availing total shutdown on that day.2)110KV Thammampatty -

Namagripet line series switch at thammampatty 110KV SS towards Namagripet side will

be Kept Opened.3)110KV Deviakurichi-Thammampatty feeder will be radially fed upto

Thammampatty 110KV SS from Deviakurichi 230KV SS.4)There will be no interruption of

supply to any SS.


condition

137 Madurai 110 KV PERAMBALUR 230 KV 110KV Siruvachur Feeder breaker CT's only For monthly maintenance work

During the above period of shut down1)110KV Siruvachur SS Also availing Total shut

down on the Same date. 2)110KV Pudukurichy SS and MRF load will be fed from 110KV

Kalakudy Grid SS.


condiitonApproved

138 Erode 110 KV KARAMADAI 230 KV

1.110KV Pykara-Mettupalyam feeder section

between Pykara and Bhavani barrage I

HEP.2.110KV Kothagiri Spur line from

tapping tower to Kothagiri ss3.110KV

Mettuplayam-Mathampalayam feeder section

between nellithurai switching station to

Kattabettu

Stringing between Pykaraa-Mettupalayam feeder

and DP loc1 ii) stringing between new tower loc 5

amd loc no:6 and then to existing one x arm to

Kattabettu LILO tower by AE/Lines/Kattabettu and

Kothagiri

Kothagiri SS under total shutdown.Hence no SS will be affected 0 Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 18:00 1 0Subject to Load

condition

139 Madurai 110 KV Thanjavur 110 KV110kv TJR-LINK-I&II Feeder Br one after

anotherFor monthly maintenance work

During the LC period there will be no interruption of supply to any ss, LC also applied by

EE/O&M/TJR on the same day.POSSIBLE Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1

sub to load

condiitonApproved

140 Chennai 230 KVTHIRUVANNAMALAI 230

KV

1. 110 KV Tiruvannamalai -Villupuram #,

Breaker, CT's and Line Isolator2. 110 KV

Tiruvannamalai - Kanji #, Breaker, CT's and

Line Isolator

Monthly maintenance work

During the period of L/c time,1.110 KV Mangalam SS availing total S/D,2. 110 KV

Vettavalam SS, 110 KV Rajanthangal SS, 110 KV Kilpennathur SS and 110 KV

Thandarai traction Feeders will be radially fed from 110 KV Villupuram Grid SS ( Radial

upto 110 KV Kil pennathur SS)3. 110 KV Kanji SS availing total S/D,4. 110 KV Solar

Generation and 110 KV Adamangalam SS will be fed from 230 KV Arni Substation,

Hence there is no interruption of supply please.

Possible Tue, 04-Apr-2017 09:00 Tue, 04-Apr-2017 15:00 1 To be discuss Approved

141 Erode 110 KV PYKARA110kV PYKARA - BHAVANI BARRIAGE 1 #

(BREAKER AND CT)

FOR GRT ANNUAL RELAY TESTING AND

MONTHLY MAINTENANCE WORK.NIL 0 Tue, 04-Apr-2017 8:00 Tue, 04-Apr-2017 17:00 1 0

Subject to Load

condition


110KV Thudialur -Sandinallah feeder Section

between 110KV /22KV maruthur SS and

Sandinallah SS .

1.To open jumper at S2 switch at Jagathala SSDuring LC period Kothagiri SS,Jagathala SS and Kattabettu SS will be under Total

shutdown . MAruthur SS will be fed from Thudialur end .0 Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 12:00 1 0

Subject to Load

condition


110KV Thudialur -Sandinallah feeder Section

between 110KV /22KV maruthur SS and

Sandinallah SS .

1.To open jumper at S2 switch at Jagathala SS and

PMI work by AEE/lines /Kothagiri

During LC period Kothagiri SS and Kattabettu SS will be under Total shutdown . MAruthur

SS will be fed from Thudialur end .0 Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1 0

Subject to Load

condition

144 Chennai 110 KV THIRUVALAM 230 KVcharged line) entire.

For provision of Repair sleeve in between location 51

-52..KV Sholinghur SS to 110 KV A.J. Pet SS. Hence there will be no interruption of supply

please.

Possible Tue, 04-Apr-2017 09:00 Tue, 04-Apr-2017 14:00 1 0 Approved


KV

110 KV APKM - Thulukkapatti-II feeder Br.,

CT., and Line entire.For Monthly Maintenance Work.

During the LC period the 110 KV Thulukkapatti I feeder will cater the load of 110 KV

Thulukkapatti II feeder. Hence no SS will be affected.POSSIBLE Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 14:00 1

Sub to load

conditionApproved

146 Chennai 110 KV Vilathikulam 110 KVLINK #

Breaker & CT maintenance worksRadial from other end,1.110KV Uraiyur SS availing total shut down.2.Load can be

manageable through Neyveli-I #.3.Railway traction load will be maintained in Neyveli-I #.Possible Tue, 04-Apr-2017 09:00 Tue, 04-Apr-2017 17:00 1 0 Approved


KV110KV GC Breaker in 110/33 KV SS

Momnthly Maintenance work in 110KV GC I & II,

110/33KV Power transformer I, 110/11KV POwer

TRansformer II, 11KV LV, 33KV LV, 33KV & 11KV

feeder breakers

All 11KV & 33KV feeder breakers to be hand tripped, 11KV LV will be hand tripped afetr

availing station supply from feeder fed from 11oKV Krishnagiri SS, 33KV LV will be hand

tripped. 110KV GC I & GC II will be hand tripped. Concurrence obtained from

SE/O/Thiruvalam & SE/KEDC/Krishnagiri. Total shut down proposed at 110KV SS as per

approval received from CE/D/Vellore


condition

148 Erode 230 KV SINGAPURAM 230 KV230KV K.R.Thoppur

Feeder(Breaker,CT&Isolator)Monthly Maintenance 1.Monthly Maintenance @ both ends 0 Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1 0

Approved Subject to

EE/SLDC/Erode

approval

149 Chennai 230 KV ACHRAPAKKAM 230 KV 16 MVA PR.TR.III FOR MONTHLY MAINTENANCE WORK 1.16 MVA PR.TR.I&II Will be inservice cater the entire 11kv Loads Pending Tue, 04-Apr-2017 09:00 Tue, 04-Apr-2017 12:00 1 0Subject to SE/O

concurrence


1)110KV Pasumalai - Alagarkoil -1 # BKR &

CT,LI . 2. Line LC Section between

Pasumalai - Avaniyapuram SS.

1)Maintenance Works of BKR & CT, LI 2)Tree

Cutting works

1)The Feeder will be kept radial from Alagarkoil SS upto Vandiyur SS feeding Othkadai,


110KV Pasumalai - Sakthisugars feeder radial feeding Villapuram SS 3)Avaniyapuram


POSSIBLE Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 14:00 1LC already applied

on 4.4.17Approved


110KV Kodikurichi -Tenkasi - Papanasam

feeder section between 110 KV Kadayam SS -

papanasam-rastha SS

For replacement of defective insulator at loc no: 24

(kadayam spur line) and restinging of earth wire at

location 83-84 Main line

During LC period, i)110 KV Tenkasi SS 110Kv shenkottai SS 110KV Keelapavoor SS and

110KV kadayam SS will be redially fed from 110 KV kodikurichi SS. ii)110 KV Rastha SS

will be fed from 110 KV Kayathar-papanasam Feeder by closing of bus coupler switch at

rastha SS end. iii).Hence no SS will be affected.

0 Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 17:00 1

LC may be availed

on 4.4.17.Since

EE/O/ KYR

programmed on

4.4.17

Approved Subject to

load condition

152 Madurai 230 KV Alagarkoil230kv230KV ALKL-ALUNDUR # Vbreaker CT,LINE

CVT & Line entire.for monthly maintenace wor & tree clearence work

During the L.C period the 230KV SUPPLY WILL BE FED FROM230KV other feeder, other

end also proposed L.C on the same date, hence there will be no interruption of supply

please.

0 Tue, 04-Apr-2017 9:00 Tue, 04-Apr-2017 16:00 1PRPONED TO

4.4.17

Approved Subject to

load condition

153 Chennai 230 KV CUDDALORE 230 KV230 KV Bus coupler bay and 230KV Bus Bay

strung bus

GCC/Trichy wing work for KfW fund Augmentation

of Replace the Existing Twin Kunda strung bus by

Twin MOOSE.LC Period from 01.04.2017 to

09.04.2017 (9days)

During the period of LC the 230 KV BUS A will be in service Hence no interruption of

supply.Concurrence obtained from SE/O/Villupuram.Pending Wed, 05-Apr-2017 09:00 Fri, 14-Apr-2017 17:00 3 0

Approved Subject to

normalisation of

Auto Trf.2

154 Erode 230 KV KUNDAH PH3 230KV KPH4 Feeder to Thudiyalur Feeder

230KV KPH4 Feeder to Thudiyalur Feeder Tower

No:01 to 12 Pre-Monsoon Inspection work(PMI) and

Maintenance work.

Bus and Line both end open condition Earth switch closed condition. 0 Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1 0 Approved



No13 to 24 Pre-Monsoon Inspection work(PMI) and

Maintenance work.


156 Madurai 230 KV VEERANAM 230 KV230Kv Veeranam - Kayathar Feeder Br,CT

with line switchFor Monthly Maintenance work

During the LC period there will be no supply on the entire Feeder.Concurrence obtained

from SE/ NCES/TIRUNELVELI.POSSIBLE Wed, 05-Apr-2017 10:00 Wed, 05-Apr-2017 17:00 1 0 Approved

157 Madurai 230 KV KAYATHAR 230 KVOn 230KV Kayathar - Veeranam feeder

breaker with CT & entire line

a) For monthly maintenance work & SF6 gas filling

work. b) Tower to Tower Inspection WorkDuring the LC period, other end also availing the LC. Hence no SS affected. POSSIBLE Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1 0 Approved

158 Erode 230 KV MTPS MTPS-I to Ingur Feeder Monthly maintenance Programmed LC possible Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1

subject to load

condition existing

as no tsd relief

scheduled

Approved

159 Madurai 230 KV KODIKURICHY 230 KV230KV Amuthapuram # II Breaker with C.T

and all Isolators one by one.Monthly maintenance work

EE/O/Amuthapuram Has also appiled L.C on 230KV Amuthapuram # II on same day (05-

04-2017) .POSSIBLE Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1 0 Approved

160 Erode 230 KV THINGALUR 230 KV230KV MTPS II feeder Breaker,CTs and Line

IsolatorsMonthly Maintenance Works The Feeder is already in radial condition possible Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1 radial feeder Approved


KV315 MVA,400/230KV,Auto Transformer-1 Monthly maintenance work

During the LC Period 315MVA 400/230KV Auto Transformer-1 in OFF Condition and Auto

Transformer 2 will cater the load of Auto Transformer -1.

Possible, OCC

Appd. 129/120Wed, 05-Apr-2017 09:00 Wed, 05-Apr-2017 17:00 1 0 Approved

162 Erode

GENERATI

NG

STATIONS

KUNDAH PH5 UNIT NO: 01ANNUAL RELAY TESTING WORK BY GRT WING

KUNDAHDURING THE LC PERIOD THE UNIT NO:01 WILL BE UNDER NOT S/B CONDITION.. possible Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1

subject to the grid

conditionApproved

163 Chennai 110 KV Alamathy 400 KV110KV AVADI-1 & 110KV AVADI-2(ONE BY

ONE)ANNUAL RELAY TESTING BY GRT WING.

DURING THE ABOVE SHUTDOWN PERIOD 110KV AVADI-1 & 110KV AVADI-2(ONE

BY ONE) WILL NOT BE IN SERVICE.

Possible with

CBD

Concurrence

Wed, 05-Apr-2017 10:00 Wed, 05-Apr-2017 17:00 1 0 Approved

164 Erode 110 KV Erode 110 KV110 KV ERODE - INGUR III FEEDER

BREAKER AND CTMONTHLY MAINTENANCE WORK


OBTAINED FROM SE/EEDC/ERODE.possible Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 13:00 1

subject to the load



1).110 KV Pasumalai - Alagarkoil-II # BKR &

CT, LI only. 2)Line LC in Section between

Pasumalai - Anaiyur SS.

1)Maintenance Works of BKR & CT, LI only2)Tree

Cutting works

1) The Feeder will be kept radial from Alagarkoil SS upto Vandiyur SS feeding Othkadai,


110KV Pasumalai - Sakthisugars feeder radial feeding Villapuram SS 3)Avaniyapuram


0 Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 14:00 1feeder 2 condition

not mentioned.Approved


(i) 230KVAmuthapuram II feeder Breaker,CT

& Isolator. (ii) 230KV Amuthapuram II feeder

entire Line.

(i) For monthly maintenace work (ii) For replacement

of defective Insulator at Location No :45 (R & Y

phase)

During the LC period, (i) 230 KV Amuthapuram SS also availing monthly maintenace

work (ii) 230KV Isolator towards Amuthapuram will be kept opened atKodikurichi SS,

230KV Isolator towards Kodikurichi will be kept opened at Amuthapuram SS

POSSIBLE Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1 0 Approved

167 Madurai 230 KV TTPS 1)230KV TTPS-CKNI FEEDER For Maintenance work1)Both end Breakers to be tripped2)Both end Bus & Line switches to be opened3)Both

End earth switches to be closed conditionPOSSIBLE Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1 0 Approved

168 Madurai 230 KV AMUTHAPURAM 230 KVAmuthapuran-kodikurichi-2 230KV

#,breakers,CT's and its isolatorsMonthly maintenance work

1) During the LC period there will be NO supply in this feeder. 2) Other End also avail LC

on same day. 3) Cocurrence obtained from SE/NCES/TIN.POSSIBLE Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1 0 Approved

169 Madurai 230 KV PUGALUR 230 KV230 KV Pugalur - Paramathy I feeder

Breaker, CT & line switch and line entire only1. Monthly maintenance work 2) Tree cutting work

During the LC period, there will be no supply in 230 KV Pugalur - Paramathy I feeder.

Necessary Concurrence obtained from PGCIL Paramathy. Hence There is no interruption

to any SS,LC approved in 129 th OCC meeting

POSSIBLE Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1App in 129

occ/111Approved

170 Erode 230 KV UNJANAI 230 KV1.CAPACITOR BANK NO :II BREAKER, CT'S

AND BANKSIDE ISOLATOR ONLYFOR MONTHLY MAINTENANCE WORK

DURING THE L.C PERIOD CAPACITOR BANK NO :I WILL CATER THE STATION WAR

LOADSpossible Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 15:00 1

subject to the

voltage profile in

the grid

Approved

171 Madurai 110 KV then I 230 KV110 KV THENI KINNIMANGALAM I & II #

BREAKER WITH CT ONE BY ONE .MONTHLY MAINTENANCE WORK. MONTHLY MAINTENANCE WORK (R/F KINNIMANGALAM). POSSIBLE Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1 0 Approved


STATION 230 KV230KV CKNI-TTPS Feeder Entire

For Monthly maintenance works and Line

Maintenance worksDuring the LC period, there will be no supply in the Entire feeder POSSIBLE Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1 0 Approved

173 Madurai 110 KV KAVANOOR 230 KV

110 KV KARAIKUDI-VALUTHUR # SEC.

BET. VALUTHUR & R.S.MANGALAM

(INCLUDING SALAIGRAMAM SPUR LINE

LINE MAINTENANCE WORKSFEEDER TO BE KEPT RADIAL FROM KARAIKUDI UPTO R.S.MANGALAM.

SALAIGRAMAM TO BE AVAILED SHUTDOWN; L.R. 1.2 MWPOSSIBLE Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1

sub to total s/d

and karaikudi auto

loading

Approved Subject to

load condition


KV

110KV Valayapatty feeder CB, CTs and Line

Switch.

To attend meagre oil leak from P2 Terminal of R & Y

Phase CTs and attend regular maintenance works.

During LC period110KV Erumapatty SS availing Total Shut dodwn.110KV Valayapatty

and SENdamangalam SS will be back fed from 110KV PSI-Namakkal feeder.No supply

interruption.

possible Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1

subject to the load

transfers being

effected

Approved

175 Madurai 110 KV KADALANGUDI 230 KV 110KV Palaiyur- Aduthurai feeder entire Line inspection and rectification work

No interruption to any SS. 110KV Aduthurai SS proposed to shutdown. 110KV KGTPS-

Palaiyur feeder will be in radial condition up to Palaiyur SS. The 110KV Thirupanandal,

Thirupurambium and Jayankondam SS supply fed from 110KV Kadalangudy- Aduthurai-

Neyveli TS I feeder.


176 Madurai 110 KVRENGANATHAPURAM

230 KV

110kv RNPM-SBT I # section between

Reddiyarchatram SS and Kannivadi SSTree cutting work

during LC period 110kv RNPM-SBT I # radially fed from RNPM upto Reddiyarchatram SS

and radially fed from SBT upto Kannivadi SSPOSSIBLE Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 14:00 1 0 Approved

177 Madurai 230 KV TRICHY 230 KV1. 230 KV TRICHY - ALUNDUR I Feeder

breaker,CTs, Line isolator and line entire.0

During the LC period, a) other end also availing LC on the same feeder. b) All other

230KV feeders will be in tied condition. c) Hence there will be no interruption of supply to

any of the feeder and SS.

POSSIBLE Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1sub to load

conditionApproved

178 Madurai 230 KV THIRUVARUR 230 KV 230KV Thiruvarur - PPN Feeder

Line premansoon Inspection and Rectification work,

Breaker, CT's & Isolator maintenance work and PPN

Plant side Relay Testing work.

During the LC period all other 230KV Feeders are in tied condition. Hence there will be no

interruption of supply to any other Substations.POSSIBLE Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1 0 Approved


230 KV

230KV OKM-Anikadavu Feeder Entire

(Breaker, CT's, 89M1, 89M2 & 89L Isolators)for monthly maintenance works. During the LC period, the other 230 KV feeders are in service to cater the SS loads. possible Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1

subject to the load


180 Madurai 230 KV SEMBATTY 230 KV230/110KV Auto I, HV i and LV I, bkr, CTs

and relaysMonthly maintenance work During the LC period Auto II and III will be in service. POSSIBLE Wed, 05-Apr-2017 10:00 Wed, 05-Apr-2017 17:00 1

sub to load

conditionApproved

181 Madurai 110 KV SEMBATTY 230 KV110kv SBT - RNPM I # Bkr, CTs and sec. bet.

SBT and Reddiyarchatram SS1. Monthly maintenance work2. Tree cutting work

During the LC period, Kannivadi SS availing total shutdown and the feeder will be radial

from other end upto Reddiyarchatram SS. Hence no interruption to any SS.POSSIBLE Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1 0 Approved

182 Erode 230 KV METTUR TPH230KV MTPH-AUTO SS Fedder SF6

Breaker,CTs and IsolatorsFor Monthly maintenance works

During the above LC period 230KV MTPH-MTPS Feeder will be in service and machine

1,2,3 &4 will be in common spell AOH works and machine 4 in Individual spell AOH work

and PWD Demand meet out by Dam power house units.

postponed Wed, 05-Apr-2017 7:00 Wed, 05-Apr-2017 17:00 1

96 mw support to

mettur auto ss

would be cut

Subject to

EE/SLDC/Erode

approval

183 Erode 110 KV DEVIAKURICHI 230 KV110 KV Capacitor bank II Breaker CTs,

Capacitor side Isolator, LASFor Monthly Maintenance work Capacitor Bank I will be in service possible Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1

subject to the

voltage profile in

the grid

Approved

184 Chennai 230 KV ARNI 230 KV230KV Arani Echur Feeder Breaker,230KV

CTs and 230KV Line Isolatores

For 230KV Breaker, Line Isolator and CT monthly

maintenance work.

During the period of LC the 230KV Bhavini - I & Bhavini - II Feeder loads (Sirucheri SS

Loads 70MW ) will be transferred to 230KV Singarapet SS by Split bus arrangements in

230KV Arani SS.Also 110KV Polur SS loads and Vandavasi SS loads will be transferred

to 230KV Thiruvannamalai SS and 230KV Achcharapakkam SS respectively.

Possible with

Split BusWed, 05-Apr-2017 09:00 Wed, 05-Apr-2017 14:00 1 0

Approved with Split

bus arrangement

185 Madurai 230 KV KADALANGUDI 230 KV 230KV PPN- Thiruvarur feeder entire1)Line inspection and rectification work 2)Relay

testing work at Plant end.

No interruption to any SS. All other feeders will be in tied condition. Plant is under

shutdown.POSSIBLE Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1 0 Approved

186 Erode 110 KV UDUMALPET 230 KV110 KV UDUMALPET LINK III FEEDER

BREAKER AND LINE ENTIREFOR MONTHLY MAINTENANCE WORKS

DURING LC PERIOD THE ABOVE FEEDER LOADS WILL BE CATER IN 110KV UDT I &

II FEEDERSpossible Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1

subject to the

other two link

feeders loading

limit

Approved

187 Erode 230 KV UDUMALPET 230 KV230KV UDT-ALIYAR FEEDER BREAKER

AND LINE ENTIREFOR MONTHLY MAINTENANCE WORKS

THE ABOVE FEEDER LOADS WILL BE FED FROM 230KV MYVADI LINK I & II

FEEDERSpossible Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1

subject to the load


188 Chennai 400 KV Sriperumbudur 400 KV 400KV BUS-II Entire Half yearly maintenance work During the period of shut down 400kv Bus-I will be in servicePossible, OCC


189 Erode 230 KV METTUR AUTO 230 KV 230 kv MTPS 1 -Ingur feeder entire Jumbercone tightness checking at MTPS 1 Ingur bay Programmed LC at MTPS -1 on 05.04.2017 possible Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 14:00 1

subject to the load

condition existing

as no tsd has

been scheduled

Approved

190 Erode 230 KV THUDIALUR 230 KV 100MVA Auto transformer-II, HV-II & LV-II For monthly maintenance works Auto Transformer I & III will be in service possible Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1

subject to the

other auto trs

loading limit

Approved

191 Erode 110 KV Udumalpet 110 KVEntire line

Monthly Maintenance workDuring LC period there is no SS will be affected since there is inter connected SS fed from

other end.possible Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1

subject to the

other two link

feeders loading

limit

Approved

192 Erode 230 KV SINGARAPET 230 KV Auto transformer III & LV III BreakerTo carry monthly maintenance work by

AEE/MTC/230 KV SS / SPT

During the period of LC, 1) Auto transformer III and LV III breaker will be in off condition.

2) The Auto transformer I and II will be in service.3) All the 110 KV feeders will be in

service. Except 110KV SSREL # which will be radially charged condition from

Karimangalam 230KVSS.4) 110 KV Ramiyanahalli SS and Pappireddipatty SS loads will

be fed from Karimangalam SS if necessary and hence no interruption of supply.


subject to the

other auto trs

loading limit

Approved


110 KV Arasur - Karamadai I feeder( section

between 110 KV Kaduvettipalayam SS and

110 KV Ellapalayam SS )

For PMI works.

During the Line Clear period, 1) 110 KV MGC palayam SS and 11o KV Kaduvettipalayam

SS will be fed from 230 KV Arasur SS 2) 110 KV Ellapalayam SS will be fed from 230 KV

Karamadai SS

possible Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1subject to the

division of loadsApproved

194 Erode 230 KV ARASUR 230 KV230/110 KV Autotransformer - I, HV-I, LV-I,

For Monthly maintenance work. )

During the Line Clear period, 1) 110 KV Kalapatty SS,110 KV Sulur SS and 110 KV

Neelambur SS under Total Shut down.2)remaining loads will be managed by 3 Nos Auto

Transformers.3) 110KV Thudialur # will be radial from 230 KV Thudialur SS if necessary.


subject to the

other auto trs

loading limit

Approved

195 Chennai 230 KV Lines/Athipet 230KV Tondiarpet - NCTPS Stage-I 2 Jumper tightness. Tower to Tower inspection. All other feeder in service.To be discuss -

2daysWed, 05-Apr-2017 08:00 Thu, 06-Apr-2017 18:00 1 0

Approved (Daily

basis0

196 Madurai 230 KV ALUNDUR 230 KV230KV Alundur -Trichy I feeder breaker,

CT'S, CVT'S and line isolators.

a) Preventive Monthly maintenance work.

b)premonsoon inspection and tree cutting work. C)

Relay Testing Work.

During the LC period, a) Other end also avail shutdown. b) All other 230 KV feeders will

be in service. c) There will be no interruption of supply to any other feeders.POSSIBLE Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1

sub to load

conditionApproved

197 Erode 230 KV INGUR 230 KV Line side Isolator and 230 KV main Bus &

Auxillary Bus switch

MONTHLY MAINTENANCE WORKS AND ALSO

NEW LAS ERECTION WORKOTHER END ALSO AVAIL LC ON THAT DAY possible Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 14:00 1

subject to the load

condition existing

as no tsd has

been scheduled

Approved


KV110KV Sipcot II feeder bay

For providing Wave drop jumper in Sipcot II feeder,

GRT Annual Relay test in Hi- Tech 110KV feeder

Sipcot II -Gummidipoondi link feeder at 110KV

Sipcot II SS end and 110KV Panjetty feeder monthly

maintenance work at 230KV Gummidipoondi SS

Concurance to be obtained from M/s. OPG and M/s. Hi-Tech and EHT consumer during

the period of shutdown no export from 110KV OPG and Hi- Tech private generation and

110KV panjetty SS load may be transfered to 230KV Manali SS

Possible Wed, 05-Apr-2017 10:00 Wed, 05-Apr-2017 17:00 1

Subject to

concurrence from

M/s. OPG and

M/s. Hi-Tech and

EHT consumer

Approved

199 Madurai 110 KV KODIKURICHY 230 KVon 110KV Shasayee Paper Mill #

(O.Thulukkapatti SS)

For Annual Relay Test Conduct by

AEE/GRT/Thalaiyuthu

110 KV EHT consumer Shasayee Paper Mill availing shutdown . Concurrance obtained

from the consumer by AEE/MAINTENANCE/O.T.PATTI.Hence No SS will be affected.POSSIBLE Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1 0 Approved


1.400/230KV ,315 MVA ICT1, HV and LV

breakers and its CTs.2.110KV Karamadai-

Arasur I feeder section between 110KV

Kaduvettipalayam SS and 110Kv

Ellapalayam SS

1.For maintenance works.2.AE/Lines /Arasur for PMI

1.During LC period ICT II& III will be inservice 2. During LC period No SS will be affected,

as Ellapalayam SS will be fed from Karamadai SS and MGC Palayam and

Kaduvettipalayam will be fed from Arasur 230KV SS


occ approved and

subject to the load

condition

Approved

201 Erode 230 KV METTUR AUTO 230 KV 230kv MTPH FEEDER ENTIRE MONTHLY MAINTENANCE WORK DURING THE LC PERIOD OTHER 230KV FEEDERS WILL BE INSERVICE postponed Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1

96 mw support to

mettur auto ss

would be cut

Subject to

EE/SLDC/Erode

approval


230 KV

110KV N T KUDI-MADUKKUR-

THIRUMAKKOTTAI-KOVILKALAPPAL

FEEDER (LP: 110KV MADUKKUR SS TO

110KV THIRUMAKKOTTAI SS)

FOR PREMONSOON INSPECTION WORK BY

AE/LINES/PATTUKKOTTAI

1) DURING THE LC PERIOD, 110KV MADUKKUR SS RADIALLY FED FROM 230KV NT

KUDI SS AND 110KV THIRUMAKKOTTAI SS RADIALLY FED FROM KOVILKALAPPAL.

2) NO INTERRUPTION TO ANY OTHER SS.


conditionApproved

203 Erode 230 KV KUNDAH PH2230KV KPH2-KPH3 FEEDER SF6 BREAKER

AND ITS ACCESSIORIESFOR MONTHLY MAINTENANCE WORK SF6 BREAKER OFF IN CONDITION TOP AND BOTTOM BUS OPEN IN CONDITION Possible Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 1 0 Approved

204 Chennai 230 KV ECHUR 230 KV 230 KV Echur - Arni # Monthly Maintenance Work

230 KV Echur - Arni & Kalpakkam #-at time of LC in 230 KV kalpakkam #, Kalpakam #

breaker will be HT, Echur -Arni# breaker HT and Load transferred to other end SS no

supply to Arni#, Then 110 KV mazhaiyur SS Load transferred to 230 KV Villupuram SS

and 110 KV Vandavasi SS Load transferred to 230 KV Acharapakkam SS. Maintenance

work carry over Echur - Arni & Kalpakkam #

Pending Wed, 05-Apr-2017 09:00 Fri, 07-Apr-2017 17:00 3 0 Approved

205 Erode 230 KV HOSUR 230 KV

1.230/110 KV Auto Transformer I 2. 230/110

KV Auto Transformer II3. 230KV Shoolagiri

Feeder Breaker&entire line.4. 110 KV Bagalur

feeder Breaker&entire line.5. 110 KV

Zuzuvadi feeder Breaker&entire line.6. 110/33-

11 KV GC Hosur

1. For Monthly Maintenance Work. 2. For attending

glow in Zuzuvadi feeder.3.For replacement of static

relay of 230KV Shoolagiri feeder. 4.For replacement

of defective master trip relay to 110/11 KV GC.

During the above line clear period there will be no supply to 110 KV Min Nagar SS , 110

KV Nariganapuram SS , 110 KV Bagalur SS , 110 KV Zuzuvadi SS , 110 KV Hosur SS

and M/s. TVS Motor Company Ltd, the above ss are availing Mtce shutdown on the same

day. The 230KV Hosur ss loads will be catered through 230KV Mettur feeder and the

loads wiil maintained with in to Auto Transformer capacity.The concurrence of

Superintending Engineer / KEDC / Krishnagiri , Superintending Engineer/ Operation /

Thiruvalam and Chief Engineer / Distribution / Vellore has been obtained.


subject to the tsd

relief being

realized

Approved


110KV Hosur-Bagalur feeder & 110KV Hosur -

Zuzuvadi feeder& 230KV Hosur-Shollagiri

feeder

1)Monthly Line maintenance work

During the above LC period there will be no supply to 110KV Minnagar SS,110KV

Nariganapuram SS,110KV Bagalur SS,110KV Zuzuvadi SS and M/S TVS Motor company

LTD,The above SS are availing Monthhly Shutdown on the same day.The 230KV Hosur

SS Load will be catered through 230KV Mettur feeder.The concurrence of

CE/D/Vellore,SE/O/TVlm and SE/KEDC has been obtained.

0 Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 14:00 1 0

Approved Subject to

EE/SLDC/Erode

approval

207 Chennai 230 KV CUDDALORE 230 KV 110 Kv - Neyveli-Aduthurai feederFor painting of DP structures and checking of jumper

Durind the period of LC The 110 KV srimushnam and 110 KV Umangalam SS will be

availing total shutdown.110 KV Papakudi SS load Already fed from 230 KV SS

kadalangudi.Hence NO Interruption of SupplyConcurrence obtained from

SE/O/Villupuram

Possible Wed, 05-Apr-2017 09:00 Wed, 05-Apr-2017 17:00 1 0 Approved

208 Erode

GENERATI

NG

STATIONS

PYKARA UNIT 2 FOR MONTHLY MAINTENANCE WORK NIL 0 Wed, 05-Apr-2017 8:00 Wed, 05-Apr-2017 17:00 1 0 Approved

209 Erode 230 KV ALIYAR 230 KV230KV ALR-UDT FEEDER CB,CT&LINE

ENTIREQuarterly mtce work During the LC period 230kv kdh feeder will caters the load 0 Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 16:00 1 0

Approved Subject to

grid condition

210 Chennai 110 KV VILLUPURAM 230 KV110 KV Villupuram-Madurapakkam-II #

(Breaker, CTs ).For monthly maintenance works

For maintenance works and jumpers tightening works in Vikravandi LILO.VKD, MPKM,

Vanur & TCBLM SS availing total shutdown.Possible Wed, 05-Apr-2017 09:00 Wed, 05-Apr-2017 17:00 1 0 Approved


KV

110KV APKM - NSPM feeder Breaker CT and

line Switch only.For Monthly Maintenance Work.

During the LC period, the other end also availing LC on the same date. Hence no ss will

be affected.0 Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 13:00 1 0 Approved


KV

A) 110KV NSPM-APKM # Breaker. B) 110KV

NSPM-APKM # Line Entire. C) 110KV Bus

Entire at NSPM SS.

A) New Breaker wiring and testing & commissioning

works.B) Swapping of 110 KV NSPM - APKM line

from existing bay to new bay. C) 110 KV Bus

extension & Dropper providing works & Monthly

maintenance works.

During the LC period, A)110KV NSPM-APKM feeder breaker will be kept in tripped

condition. B)&C) 110KV NSPM-APKM feeder entire line under total shut down condition

and N.Subbiahpuram-Kayathar feeder will be radialy fed from other end upto Viyajapuri

110KV SS.110KV ETA feeder will be tripped condition since the EHT SC feeder was

under DC from 23.03.2016.Hence No SS affected.Concurrence obtained from

SE/VREDC/VDR.

0 Wed, 05-Apr-2017 9:00 Wed, 05-Apr-2017 17:00 2

NSPM BUS LC

ONE DAY & S/D

ONE DAY

Approved

213 Chennai 110 KV Vilathikulam 110 KV 110KV VPM- Neyveli- I # Breaker & CT maintenance works

Radial from other end,1.Arasur Ss in Neyveli-II #availing total shut down.2.Load can be

manageable through Neyveli-II #.3.Railway traction load will be transferred to Neyveli-II

#& jumper Tightening works in the Traction Line.

Possible Wed, 05-Apr-2017 09:00 Wed, 05-Apr-2017 17:00 1Subject to load

conditionApproved

214 Chennai 230 KV

BASIN

BRIDGE(GMRVASAVI)

230 KV

Auto Transformer 3 OLTC oil changing work & routine maintenane workAuto Transformer 3 will not be inservice, Auto Transformer 1 & 2, all 230 KV & 110 KV #s

will be inservice .Possible Wed, 05-Apr-2017 09:00 Wed, 05-Apr-2017 17:00 1 0 Approved



No:25 to 36 Pre-Monsoon Inspection work(PMI) and

Maintenance work.


216 Chennai 230 KV KITS 230 KV 100MVA Auto transformer-I For monthly maintenance work

During the above shutdown period 100MVA Auto transformer III and 80MVA Auto

transformer-II will be in service except 110KV Veerapuram # which will be in back

charged condition


217 Chennai 110 KV THARAMANI 230 KV 110 KV Perungudy-2 feeder Quarterly Mtce. work 110 KV Perungudy -1 # will be in service Possible Wed, 05-Apr-2017 00:00 Wed, 05-Apr-2017 00:00 1 0 Approved

218 Madurai 230 KV PUDUKOTTAI 230 KV

AUTO I, HV I, LV I AND 110 KV ALANGUDY

EID PARRY FEEDER LINE PORTION

BETWEEN 230 KV SS AND EID PARRY

AND 110 KV ADHANAKKOTTAI FEEDER

LINE PORTION BETWEEN 110 KV

MALAIYUR SS TO 110 KV VADAKADU SS

AUTO I BREAKER, CT ISOLATORS AND EHT LINE

MAINTENANCE WORKS AND GRT TESTING

WORKS

110 KV ALANGUDY SS, 110 KV NAGUDY SS, 110 KV KODIKKULAM SS IN 110 KV

ALANGUDY EID PARRY FEEDER AVAILING TOTAL SHUT DOWN AND 110 KV

SUPPLY FOR 110 KV ALIYANILAI SS AND EID PARRY CO GENERATION IS TO BE

BACK FED THROUGH 110 KV SIPCOT FEEDER. 110 KV PUDUKKOTTAI SS IN 110 KV

SIPCOT FEEDER AND 110 KV VADAKADU SS IN 110 KV ADHANAKKOTTAI FEEDER

ALSO AVAILING TOTAL SHUT DOWN AND HENCE THERE WILL BE NO

INTERUPTION OF SUPPLY TO ANY SS

0 Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1POSTPONED TO

06.04.17

Approved subject to

load condition

219 Madurai 230 KV PASUMALAI 230 KV100 MVA AUTO - II, HVB - II, LVB - II, CT

only.

1)Monthly Maintenance Works 2)Attending to Oil

leak in the Auto.

1)Auto Transformer -1 will be in Service. 2)110KV Pasumalai - Sembatty feeder will be

kept radial from Sembatty end.3)110/33-11KV Arasaradi SS and 110KV Pasumalai SS

will be under Shutdown Relief - 62 MW. 4)110KV Pasumalai - Alagarkoil -2 Feeder will be

kept radial from other end.

0 Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 14:00 1POSTPONED TO

06.04.17

Approved subject to

load condition

220 Erode 400 KV Salem 400 KVHV & LV SIDE - ITS ENTIRE

BREAKERS, JUMPERS & SWITCHES

Monthly Maintenance WorkDuring 400/230 KV Auto Transformer I LC Period, 400/230 KV Auto Transformer II will be

in Service Condition. Hence there will be no interruption of supply.postponed Thu, 06-Apr-2017 8:00 Thu, 06-Apr-2017 14:00 1

occ approved date

is 06.04.2017Approved

221 Chennai 230 KV ECHUR 230 KV110 KV Echur- Vandavasi,Mazhayur# 110 KV

Breakers, CTs,Pts & Isolators Monthly Maintenance Work transferred to 230 KV Acharapakkam SS. 110 KV Echur - Mazhayur # the 110 KV

Mazhayur # Bkr HT Load transferred to 230 KV Villupuram SS.

Pending Thu, 06-Apr-2017 09:00 Thu, 06-Apr-2017 17:00 3 0 Approved

222 Madurai 230 KV KAYATHAR 230 KVOn 230KV Kayathar -Sanganeri feeder

breaker with CT entire line.

For a) Monthly maintenance work b)Tower to tower

inspection work.During the LC period, other end also availing the LC. Hence no SS affected. POSSIBLE Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1 0 Approved

223 Madurai 110 KV SRPUDUR 230 KV

On 110KV SR Puthur - Nagercoil # section

between SR Puthur and MPM including

Thengampudur, kanyakumari.

Tree clearance and Tower to Tower inspection

During the LC period,110/11 KV MPM and TGPR SS will avail total shut down as

approved by SE/KKEDC/NGL. Nagercoil SS will avail supply from 110 KV SRP - Kodayar

I #. Hence no SS will be affected.

POSSIBLE Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 14:00 1sub to total s/d

and wind genApproved

224 Erode 230 KV GOBI 230 KV230 KV MTPS II FEEDER BREAKER,CT'S

WITH LINE SWITCH

FOR ANNUAL RELAY TESTING WORK BT

P&C/GOBI AND FOR MONTHLY MAINTENANCE

WORK

230 KV ARASUR FEEDER,230 KV PALLAKAPALAYAM FEEDER AND 230 KV

ANTHIYUR FEEDER ARE IN SERVICE,IT MAY CATER THE LOADpossible Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1

subject to the load


225 Madurai 230 KV PUGALUR 230 KVAuto transformer I, HV I and LV I

Breaker,CT's and LAS only.For Monthly Maintenance Work

During the L.C Period HV I and LV I are tripped condition. The 110KV AC Palayam and

110 KV Thalapatty SS proposed total shutdown.There is no interruption to any SS. Load

contain with in two auto transformer (II&III)

POSSIBLE Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1sub to load

conditionApproved

226 Madurai 110 KVTUTICORIN -AUTO 230

KV

On 110KV TTN-Sipcot-III feeder breaker with

CT bus and line side switchesFor Monthly Maintenance Work

No SS will be affected, and the feeder is radial from other end. During this Lc period 110

KV Town ss will be fed from 230 KV Sipcot ss.POSSIBLE Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1 0 Approved

227 Madurai 110 KV then I 230 KV110 KV THENI-PERIYAR I & II # BREAKER

WITH CT ONE BY ONE.MONTHLY MAINTENANCE WORK. MONTHLY MAINTENANCE WORK. (R/F PERIYAR) POSSIBLE Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1

sub to load

ocndiotiApproved

228 Erode 110 KV Salem 400 KV110 KV Nangavalli # - Its CT, BREAKER,

BUS & LINE SWITCHESMonthly Maintenance Work Nangavalli # fed from Mettur 230 KV SS after getting concurrence from M/s.JSW Ltd., possible Thu, 06-Apr-2017 8:00 Thu, 06-Apr-2017 14:00 1

subject to transfer

of loadsApproved


110 KV KARAIKUDI-VALUTHUR # SEC.

BET. R.S.MANGALAM AND THIRUVADANAI

(INCLUDING ANANDUR

LINE MAINTENANCE WORKS

FEEDER TO BE KEPT RADIAL FROM VALUTHUR UPTO R.S.MANGALAM AND TO

KEPT RADIAL FROM KARAIKUDI UPTO THIRUVADANAI. ANANDUR SS TO BE

UNDER SHUTDOWN; L.R. 0.7 MW

POSSIBLE Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1 sub to total s/d Approved


KV

110KV Pudhansandai feeder CB, CTs and

Line Switch.110KV West Bsu, its PTs and

Bus Side Switches-5 Nos.

For monthly maintenance works pending for 3

momnths.

During LC period110KV Pudhansandai SS availing Total Shut down.110KV Rasipuram

SS will be transferred to 110KV Salem-Mallur feeder.110KV Namakkal SS will be

transferred to 110KV PSI-Valayapatty feeder. 110KV Namagiripet SS will be transferred

to 110KV DVK-Thammampatty feeder.Other 110KV feeders will be fed through Auto-II in

service.No supply interruption.

possible Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1

subject to

puthansanthai ss

availing tsd; the

western bus lc will

be subject to load

condition

Approved

231 Madurai 110 KV kinnimangalam 230 KV 110KV KNMLM - THENI 1 # Monthly maintenance works for breaker and CT The feeder will be radial from 230KV Theni SS POSSIBLE Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1 0 Approved


AUTO 1, HV1, LV1 AND 110KV ALANGUDY

EID PARRY FEEDER LINE PORTION

BETWEEN 230KV SS AND EID PARRY AND

110KV ATHANAKKOTTAI FEEDER LINE

PORTION BETWEEN 110KV MALAIYUR SS

TO 110KV VADAKADU SS

AUTO I, BREAKER,CT,ISOLATORS AND EHT LINE

MAINTENANCE WORKS AND GRT TESTING

WORKS.

110 KV ALANGUDY SS, 110 KV NAGUDY SS, 110 KV KODIKKULAM SS IN 110 KV

ALANGUDY EID PARRY FEEDER AVAILING TOTAL SHUT DOWN AND 110 KV

SUPPLY FOR ALIYANILAI SS AND EID PARRY CO GENERATION IS TO BE BACK

FED THROUGH 110 KV SIPCOT FEEDER. 110 KV PUDUKKOTTAI SS IN 110 KV

SIPCOT FEEDER AND 110 KV VADAKADU SS IN 110 KV ADHANAKKOTTAI FEEDER

ALSO AVAILING TOTAL SHUT DOWN AND HENCE THERE WILL BE NO

INTERUPTION OF SUPPLY TO ANY SS.


conditionApproved


110KV Mayiladuthurai- Thiruvarur feeder

portion between Mayiladuthurai and Peralam

SS.

Line inspection and rectification work No interruption to any SS. 110KV Perambur and Peralam SS proposed to shutdown. POSSIBLE Thu, 06-Apr-2017 10:00 Thu, 06-Apr-2017 16:00 1sub to s/d of

neelakudi

Subject to Total

shutdown

234 Erode 230 KVPALLAKAPALAYAM 230

KVAuto Transformer -I-HV and LV side Monthly Maintenance Auto Transformer -II- manage the Load possible Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1

subject to the

other auto tr

loading limit

Approved

235 Madurai 230 KV PASUMALAI 230 KV100 MVA AUTO - II, HVB - II, LVB - II, CT

only.

1)Monthly Maintenance Works 2)Attending to Oil

leak in the Auto.

1)Auto Transformer -1 will be in Service. 2)110KV Pasumalai - Sembatty feeder will be

kept radial from Sembatty end. 3)110/33-11KV Arasaradi SS and 110KV Pasumalai SS

will be under Shutdown Relief - 62 MW. 4)110KV Pasumalai - Alagarkoil -2 Feeder will be

kept radial from other end.


condiitonApproved


230 KV

1)230/110KV Auto Transformer-I

(100MVA)HV,LV Breaker & CT's2)110KV

RNPM - UDPT # Br, CT's

1) & 2) monthly maintenance works

1) During LC period 230/110KV Auto Transformer - II(100MVA)will be in service and cater

station load.2) 110KV RNPM - UDPT # radial from UDPT End.3) 110KV RNPM - SBT - I

# radial from SBT End.4) 110KV RNPM SS and 110KV Chinnakkampatty SS avail total

shutdown. hence no interruption to any SS

POSSIBLE Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 16:00 1

sub to load

condiiton and

concurrance from

udmpt

Approved

237 Erode 400 KV MTPSII 400KV KARAMADAI-I FEEDERMONTHLY MAINTENANCE WORKS AS

APPROVED BY OCC

UNIT IN SERVICE. 400KV FEEDERS KARAMADAI-II AND PALAVADI -I&II AND ICT -I&II

ARE IN SERVICE. ALL 230KV FEEDERS MTPS-I,GOBI,MALCO AND STANDBY

TRANSFORMER EXCEPT THINGALUR ARE IN SERVICE.


occ approved and

subject to the load

condition

Approved


KV

Auto Transformer -I-HV and LV side.Its entire

Transformer ,LAS,CT'S,Breakers &jumpers

and Switches

Monthly Maintenance Auto Transformer -II- manage the Load possible Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1 0 Approved

239 Madurai 230 KV UDAYATHUR 230 KV 230/33kv Power Tr1, HV and LV breaker Monthly maintenance work During the LC period the Power Tr1 loads will be transferred to other Power Trs. POSSIBLE Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 14:00 1 sub to wind gen Approved

240 Madurai 230 KV TRICHY 230 KV230 KV TRICHY - ALUNDUR II Feeder

breaker, CTs, Line Isolator and line entire.0

During the LC period, a) other end also availing LC on the same feeder. b) All other

230KV feeders will be in tied condition. c) Hence there will be no interruption of supply to

any of the feeder and SS.


condiitonApproved

241 Erode 110 KV KUNDAH PH6110 KV KPH 6- S'NALLAH # BREAKER @

KPH6 endANNUAL RELAY TESTING WORK FEEDER WILL BE KEPT RADIAL FROM OTHER END possible Thu, 06-Apr-2017 10:00 Thu, 06-Apr-2017 17:00 1

subject to the load


242 Erode

GENERATI

NG

STATIONS

METTUR DPH MACHINE 1 MONTHLY MAINTENANCE WORKSTHE PWD DEMAND WILL BE MEET OUT BY OTHER STANDBY MACHINES AT DAM

POWER HOUSE.possible Thu, 06-Apr-2017 7:00 Thu, 06-Apr-2017 15:00 1 0 Approved

243 Madurai 230 KV THIRUVARUR 230 KV 230KV PPN - Thanjavur FeederLine Premansoon Inspection & Rectification work

and PPN Plant side Relay Testing work.

During the LC period all other 230KV Feeders are in tied condition. Hence there will be no

interruption of supply to any other substation.POSSIBLE Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1

Sub to PPN-TVR

in tied conditionApproved


230 KV

110 KV OKM-Udumalpet I Feeder (Breaker,


During the LC period, 110KV OKM-Udumalpet I feeder will be kept radial from 110KV

Udumalpet SS. Hence, No SS will be affected.possible Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 14:00 1

subject to the

feeder being kept

radial from udpt ss

Approved

245 Chennai 230 KV TONDIARPET 230 KV 100 MVA AUTO TRANSFORMER-III FOR ROUTINE MAINTENANCE WORKSDURING THE PERIOD OF SHUTDOWN , EXCEPT 100 MVA AUTO TRANSFORMER-III

ALL OTHER FEEDERS AND EQUIPMENTS WILL BE IN SERVICE.Possible Thu, 06-Apr-2017 09:00 Thu, 06-Apr-2017 13:00 1 0 Approved

246 Madurai 230 KV EACHANGADU 230 KV50 MVA Auto Transformer-1, HV-1 and LV1-1

Breakers, CTs and LASMONTHLY MAINTENANCE WORK.

During the above shutdown period, the Eachangadu 230 KV S.S Loads will be fed from

Auto Transformer-II (50MVA).loads will be with in one Auto Transformer capacity since

110 KV Viruthachalam SS Loads are already transferred to 110 KV Neyveli- deviakurichi

feeder.


conditionApproved

247 Madurai 110 KV SEMBATTY 230 KV 110KV SBT - Dindigul # Bkr, CTs and relays1. Monthly maintenance work2. Annual relay testing

work

During the LC period, Dindigul and railway traction SS loads will be transferred to

Alagarkovil - II feeder. Hence no interruption to any SS.POSSIBLE Thu, 06-Apr-2017 10:00 Thu, 06-Apr-2017 17:00 1 0 Approved

248 Erode 230 KV Udumalpet 400 KV230 KV MYVADI - PONNAPURAM - II

FEEDER BREAKER, CT AND LINE ENTIREMONTHLY MAINTENANCE WORK BOTH END AVAIL LC possible Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1

subject to the load


249 Chennai 230 KV Thiruvalam 400 KV 230KV S.P.Koil Feeder Maintenance & GRT Periodical relay test 230KV S.P.Koil Feeder kept off condition at both end. Possible Thu, 06-Apr-2017 09:00 Thu, 06-Apr-2017 17:00 1 0 Approved

250 Erode 110 KV THINGALUR 230 KV110KV Ingur feeder Breaker, CTs and line

Isolator.Monthly Maintenance 110KV Kunnathur SS availing total shutdown. The Feeder willbe Backcharged. possible Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 14:00 1

subject to

kunnathur ss

availing tsd

Approved

251 Madurai 230 KV KADALANGUDI 230 KV 230KV PPN- Thanjavur feeder entire1)Line inspection and rectification work 2)Relay

testing work at Plant end.

No interruption to any SS. All other feeders will be in tied condition. PPN plant is under

shutdown condition.POSSIBLE Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1

Sub to PPN-TVR


252 Erode 230 KV COIMBATORE 230 KV

1.Auto Transformer II(HV & LV Breakers,

CTs and LAS)2.110KV Peelamedu feeder

Breaker and CTs3.230KV Thudiyalur feeder

Breaker and CTs

Monthly Maintenance WorksScheduled shutdown at 110/11KV Peelamedu SS and LC proposed at 230KV Thudiyalur

SS on 230KV Thudiyalur to Coimbatore feeder.possible Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 16:00 1

subject to tsd


253 Erode 110 KV UDUMALPET 230 KV110 KV UDUMALPET LINK II FEEDER


DURING LC PERIOD THE ABOVE FEEDER LOADS WILL BE CATER IN 110KV UDT

I&III FEEDERS0 Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1 0

Approved Subject to

wind Generation

254 Madurai 400 KV kamuthi 400 KV400KV ABISHEKAPPATTI FEEDER MAIN

BREAKERMONTHLY MAINTENANCE 400KV BUS WILL BE FEED THROUGH TIE BAY POSSIBLE Thu, 06-Apr-2017 10:00 Thu, 06-Apr-2017 17:00 1

App in 129

occ/127Approved

255 Chennai 110 KV ACHRAPAKKAM 230 KV

110KV ACK-SP KOIL I&II FEEDER

BREAKERS AND CT'S WITH LINE SIDE

ISOLATOR (ONE BY ONE)

TO CARRYOUT MONTHLY MAINTENANCE WORK

1.110KV ACK-SPKOIL I FEEDER WILL BE RADIALLY CHARGED FROM OTHER END

UPTO 110KV MADURANTHAGAM SS AND LINE SIDE ISOLATOR OPENED TOWARDS

230KV ACK SS SIDE AT 110KV MADURANTHAGAM SS.2.110KV ACK-SPKOIL II

FEEDER WILL BE RADIALLY CHARGED FROM OTHER END UPTO 110KV VELLORE

SS AND LINE SIDE ISOLATOR OPENED TOWARDS 230KV ACK SS SIDE AT 110KV

VELLORE SS.3.HENCE NO INTERUPTION OF POWER SUPPLY.

Possible Thu, 06-Apr-2017 09:00 Thu, 06-Apr-2017 16:00 1 0 Approved

256 Erode 230 KV THUDIALUR 230 KV

i)230KV Coimbatore feeder entire and

ii)110KV PNP feeder section between

Thudiyalur & Kathirnaickenpalayam SS

i)For monthly maintenance works, ii)Making initial

arrangements for erection of gantry tower for the

new 110KV Kathirnaickenpalayam bay at 230KV

Thudiyalur SS.

i)230KV OKM,PH4 & Karamadai feeders will be in service, ii) 110KV PNP SS will be fed

through 110KV Pykara feeder & 110KV Maddampalayam SS will be fed from 230KV

Karamadai SS.

possible Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1subject to the load


257 Erode 110 KV Udumalpet 110 KVline between UDT and Kongalnagaram SS


other end.possible Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1

subject to the

other link feeders

loading limit

Approved


KV230KV SVC - Oragadam # entire for monthly maintenance work During the LC period the 230KV SVC - Oragadam # will be out of service Possible Thu, 06-Apr-2017 09:00 Thu, 06-Apr-2017 17:00 1 0 Approved

259 Chennai 230 KV Orgadam 230KV SVC - Oragadam # entire for monthly maintenance work During the LC period the 230KV SVC - Oragadam # will be out of service Possible Thu, 06-Apr-2017 09:00 Thu, 06-Apr-2017 17:00 1 0 Approved

260 Erode 230 KV PONNAPURAM 230 KV230 KV Ponnapuram - Myvadi II # Breaker,

CTs & Line entire

For annual relay test by P&C WING/UDT &

MONTHLY MAINTENANCE WORK

1. OTHER END SS WILL ALSO AVAIL LC ON 06.04.20172. 230KV GRID #, HENCE NO

SS WILL BE AFFECTEDpossible Thu, 06-Apr-2017 10:00 Thu, 06-Apr-2017 17:00 1

subject to the load


261 Erode 230 KV SANKANERI 230 KV230KV Kayathar feeder Breaker CTs&

Lineswitches.For monthly maintenance purpose During the LC period thre will be no supply in the Entire feeder. POSSIBLE Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 14:00 1 0 Approved

262 Chennai 230 KV

SPR

SIPCOT(MAMBAKKAM)

230 KV

Breaker, Current Transformers & Line side

isolator only.

For monthly maintenance works.

During the period of shutdown the entire load of 230KV SIPCOT Mambakkam SS

[Approximately: 45MW] will be fed from 400KV SV.Chatram SS through 230KV SIPCOT-

SV.Chatram feeder without interruption.


263 Erode 110 KV SINGARAPET 230 KV110 KV SSREL # Breaker, CTs & line

isolators

To carry monthly maintenance work by


During the LC period 1. Singarapet end breaker alreay in Handtrip condition2. By availing

blink between 110 KV Singarapet - SSREL feeder line isolators towards Singarapet at 110

KV Uthangarai SS will be opened. 3. 110 KV Uthangarai SS loads already fed by

Karimangalam 230KV SS

possible Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 15:00 1 already kept open Approved

264 Erode 230 KV ARASUR 230 KV230 KV Arasur - Kundaha PH-II feeder

Br,CTs and line side Isolator

For Erection and commissioning of New Numerical

Distance protection relay by P & C wing/Thudialur.During the Line Clear period,Remaining five numbers 230 KV Feeders will be in service. possible Thu, 06-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 2

subject to the load


265 Erode 230 KV ARASUR 230 KV230/110 KV Auto transformer - II, HV-II, LV-

For Monthly maintenance work .During the Line Clear period,1)110 KV Saravanampatty SS under Total Shut down.2)If

necessary 110 KV Karamadai II feeder will be radial from 230 KV Karamadai SS.possible Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 16:00 1

subject to the

other auto trs

loading limit

Approved

266 Madurai 230 KV ALUNDUR 230 KV230KV Alundur -Trichy II feeder breaker,

CT'S, CVT'S and line isolators.

a) Preventive Monthly maintenance work.

b)premonsoon inspection and tree cutting work.

c)Relay Testing work.


be in service. c) There will be no interruption of supply to any other feeders.POSSIBLE Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1

sub to load

condiitonApproved

267 Erode 110 KV Singarapet 110 KV 110 KV METTUR # I SF6 Bkr & CTs. Monthly maintenance workDuring the LC period both ends Maintenance work programmed and hence no interruption

of supply0 Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 15:00 1 repeat of 53377 Not considered

268 Erode 110 KV Singarapet 110 KV110 KV METTUR # I SF6 Bkr & CTs with Line

isolatorsMonthly maintenance work

During the LC period1. At loc.180 line isolator towards Singarapet will be kept opened

condition2. 110KV Bommidi railway traction load will be transferred to 110KV Mettur II

feeder

postponed Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 15:00 1to tie mettur

feeder 2 first

Subject to

EE/SLDC/Erode

approval

269 Madurai 400 KV kayathar230kv400KV Tie Breaker for Karaikudi and

Kamudhi feeder (408-52)Monthly Maintenance work

During the LC period there will be no supply in 400KV Tie Breaker for Karaikudi and

Kamudhi feeder (408-52) only. hence no substation affected.POSSIBLE Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1

App in 129

occ/128Approved

270 Chennai 230 KV MANALI 230 KV Auto Transformer-3

a.For replacement of damaged fixed jaw contacts in

110kv Bus switch in 110kv LV Bay and removal of

hotline jumper

a.110kv Panjetty feeder 110 kv Metrowater and 110kv Korattur feeder loads will be

transferred to other endsPossible Thu, 06-Apr-2017 10:00 Thu, 06-Apr-2017 17:00 1 0 Approved

271 Erode 230 KV KARAMADAI 230 KV1.400KV MTPS stage III #1 main and tie

breakers and its CTs and CVTsFor maintenance works Other 400KV feeders will be in service possible Thu, 06-Apr-2017 10:00 Thu, 06-Apr-2017 17:00 1

occ approved and

subject to the load

condition

Approved

272 Erode 110 KV METTUR AUTO 230 KV 110KV MALCO I FEEDER MONTHLY MAINTENANCE WORK DURING THE LC PERIOD 110KV MALCO II&III FEEDERS WILL BE IN SERVICE possible Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1other two feeders

will be in serviceApproved

273 Madurai 230 KV THANJAVUR 230 KV230 KV Thanjavur - PPN feeder, Breaker, CT,

CVT.

1) The Shift In-Charge/PPN Plant (Er.C.Jayakumar)

has requested LC for annual relay testing in this

feeder at PPN Plant end,2) For monthly

maintenance works by the AEE/Mtce/Thanjavur,3)

For carrying out premonsoon inspection works by

the AEE/Lines/Thanjavur.

During the LC period,1) all other 230 KV feeders will be in tied condition,2) no supply

interruption to any SS.POSSIBLE Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1

Sub to PPN-TVR


274 Chennai 110 KV ATHIPET 230 KV 110KV CCTL feederFor Routine maintenance work and Annual Relay

Test work1. There will be no supply to M/s CCTL EHTSC.2. All other feeders will be in service Possible Thu, 06-Apr-2017 11:00 Thu, 06-Apr-2017 17:00 1

Subject to

concurrence from

M/s CCTL EHTSC

Approved

275 Erode 110 KV Sandinallah 110 KV 110kv sandinallah-pykara feeder annunal relay testing worka) during the lc period the above feeder fed radially from other endb) No ss will be

affected.postponed Thu, 06-Apr-2017 10:00 Thu, 06-Apr-2017 17:00 1

kph 6 to

sandynallah

feeder lc

recommended

Subject to

EE/SLDC/Erode

approval

276 Erode 110 KV A.Thekkur 110 KV 110kv sandinallah-power house 5 Feeder Annunal relay testing worka) During the LC period the above feeder fed Radially from other endb) No SS will be

affected.0 Thu, 06-Apr-2017 10:00 Thu, 06-Apr-2017 17:00 1 repeat of 53604 Not considered

277 Erode 230 KV KUNDAH PH2230KV KPH2- ARASUR FEEDER SF6

BREAKER AND ITS ACCESSIORIESFOR MONTHLY MAINTENANCE WORK SF6 BREAKER OFF IN CONDITION TOP AND BOTTOM BUS OPEN IN CONDITION Possible Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1 0 Approved

278 Erode 110 KV KARAMADAI 230 KV 110KV Pykara-Bhavani Barrage 1 feederPMI works in between Loc.30 and 79 by

AE/Lines/KattabettuLC programmed at both end. possible Thu, 06-Apr-2017 9:00 Thu, 06-Apr-2017 17:00 1

subject to bb 1

concurrenceApproved


KV

230 KV Tiruvannamalai - Neyveli #, Breake,

CT's and Line IsolatorMonthly maintenance work

During the period of L/C time,1. 230 KV T.V.Malai - Neyveli # will be OFF condition at

both ends.2. Other 2 Nos 230 KV T.V.Malai - Singarapet & Villupuram feeders will be in

service. Hence there is no interruption of supply please.


280 Chennai 230 KV CUDDALORE 230 KV For monthly maintenance worksDurind the period of LC 230 KV BUS A will be in service.Hence NO Interruption of

SupplyConcurrence obtained from SE/O/VillupuramPossible Thu, 06-Apr-2017 09:00 Thu, 06-Apr-2017 17:00 1 0 Approved

281 Chennai 230 KVTHIRUVALAM 230 KV

& SPKoilFor replacement of defective disc at Location 124.

feeders 230KV Link I, Link II, Singarapet feeders are in service.Hence there will be no



282 Chennai 110 KV MOSUR 230 KV110 KV Pallur Feeder Breaker ,CTs and Line

IsolatorsFor attending Monthly Maintenance work

i. 110 KV Pallur SS (16 MW) will be availed total shut down. ii. 110 KV Takkolam

SS(10MW) ) will be availed total shut down.iii. 110KV Punnai SS (8MW) will be availed

total shut down.iv. Hence there will be no interruption of supply


283 Chennai 230 KV MOSUR 230 KV

230/110KV Auto Transformer No-II, 230KV

only

For attending Monthly maintenance worki) 110 Pallur, Takkolam, Punnai SS are availing Total Shutdown ii) 230/110 KV Auto

transformer I,III & IV are in service iii) Hence there will be no interruption of supply please.Possible Thu, 06-Apr-2017 09:00 Thu, 06-Apr-2017 17:00 1 0 Approved

284 Chennai 110 KV VILLUPURAM 230 KV110 KV Villupuram-Acharapakkam-I #

(Breaker, CTs and line side isolator only).For monthly maintenance works.

For jumpers tightening work in the line between Villupuram &Chendur. 110KVChendur SS

availing Total shutdown and Elamangalam SS will be kept radial from Acharapakkam

230KV SS


285 Erode 230 KV Udumalpet 400 KV230 KV MYVADI - PONNAPURAM - I

FEEDER BREAKER, CT AND LINE ENTIREMONTHLY MAINTENANCE WORK BOTH END AVAIL LC postponed Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1

230 kv okm to

anaikadavu lc

recommended

Approved Subject to

wind Generation

286 Erode 230 KV PONNAPURAM 230 KV230 KV Ponnapuram - Myvadi I # Breaker,

CTs & Line entire

For annual relay test by P&C WING /UDT &

MONTHLY MAINTENANCE WORK

1. OTHER END SS WILL ALSO AVAIL LC ON 05.04.20172. 230KV GRID #, HENCE NO

SS WILL BE AFFECTED.postponed Fri, 07-Apr-2017 10:00 Fri, 07-Apr-2017 17:00 1

230 kv okm to

anaikadavu lc

recommended

Approved Subject to

wind Generation

287 Chennai 230 KV ECHUR 230 KV Auto Transformer I & II Auto Transformers I

& II (One by one) Monthly Maintenance Work

Auto transformer I & II - at time of LC Auto Tr I in off condition and Auto II in service

condition after completion of work Auto Tr II in off condition and Auto I in service

condition.(One by One) Hence No interruption of supply any of the substation of the

above mentioned time period.

Pending Fri, 07-Apr-2017 09:00 Fri, 07-Apr-2017 17:00 3 0 Approved

288 Madurai 110 kV PAPANASAM110Kv Papanasam-O.T Patti# Breaker with

CTFor carry out monthly maintenance work

Present PWd Demand is 200C/S.During the LC period, the 110KV ppm-otpatti feeder will

be radial from other end. 110kv ppm-kytr#will be in service. Hence no ss will be affected

please.

POSSIBLE Fri, 07-Apr-2017 10:00 Fri, 07-Apr-2017 12:00 1sub to ppm pwd

demandApproved

289 Erode 230 KV MTPS MTPS-I to Salem 400KV SS-I Monthly maintenance Programmed LC possible Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1

subject to the

other feeder

loading limit

Approved

290 Madurai 110 KV Kodikurichy230kv 110 KV Veerasigamani # II, Breaker with C.T Monthly maintenance work110 KV Veerasigamani WF SS will be fed from 110 KV Kodikurichi- Veerasigamani# I by

closing of AB Switch towards Veerasigamani at Echantha SS.POSSIBLE Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1 0 Approved

291 Madurai 110 KV Kodikurichy230kv 110 KV Veerasigamani # II, Breaker with C.T Monthly maintenance work110 KV Veerasigamani WF SS will be fed from 110 KV Kodikurichi- Veerasigamani# I by

closing of AB Switch towards Veerasigamani at Echantha SS.0 Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1 repeat Repeat

292 Madurai 110 KV KAYATHAR 230 KVOn 110 KV Kayathar - Gangaikondan feeder

Section between Kayathar to Gangaikondan.

a) For monthly maintenance work. b) Tower to

Tower Inspection Work.

During the LC period, Gangaikondan SS will be radially fed from Thalayathu end. Hence

no SS affectedPOSSIBLE Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1 0 Approved

293 Erode 110 KV THINGALUR 230 KV110KV ERODE 1 feeder Breaker,CTs and

Line IsolatorsMonthly Maintenance Works Other end also availing LC. possible Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1

subject to the load


294 Erode 110 KV Erode 110 KV110 KV ERODE - TINGALORE I FEEDER


DURING LC PERIOD NO SS WILL BE AFFECTED.NECESSARY CONCURRENCE

OBTAINED FROM SE/EEDC/ERODE.possible Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 14:00 1

subject to the load


295 Erode 110 KV ANTHIYUR 230 KV 110KV Bus coupler breaker and CT only.For monthly maintenance of 110KV Bus coupler

breaker and CT

During the LC period Auto Transformer-I and 110KV feeders Mettur,Barrage PH-III &

Anthiyur feeder will be in 110KV Bus-I.During the LC period Auto Transformer-II and

110KV feeders Thalavaipettai & Gobi feeder feeder will be in 110KV Bus-II.

possible Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 15:00 1subject to division

of loads onlyApproved

296 Madurai 230 KV PASUMALAI 230 KV230 KV Pasumalai - Checkanurani # - I , BKR

& CT,LI onlya)Maintenance Works of BKR & CT,LI EE / O / CKNI has also programmed POSSIBLE Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 14:00 1 0 Approved


1)110 KV Pasumalai - Sembatty # BKR &

CT,LI only. 2)Section between Pasumalai and

Achampathu

Maintenance Works of BKR,CT and LI.

1) The Feeder will be kept radial from Other end upto Achampathu SS. 2)110KV AB

Switch towards Pasumalai at Achampathu SS and towards Achampathu at Pasumalai SS

will be under open condition. 3) In case of the LC applied in Sl.No 9 for TLC works is not

approved then this LC may be considered for approval.

0 Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 14:00 1 Wrong entry Not considered

298 Madurai 110 KV PERIYAR

110 KV PERIYAR-THENI 2 FEEDER

BREAKER WITH CT AND LINE SIDE AB

SWITCHES, SECTION BETWEEN PYR-PH

TO CUMBUM SS

ANNUAL MAINTENANCE WORK

DURING THE LC PERIOD 110KV PYR-THENI 2 FEEDER RADIAL FROM THENI SS TO

CUMBUM SS.AT CUMBUM SS TOWARDS PERIYAR POWER HOUSE AB SWITCHES

KEPT OPEN.HENCE NO SS WILL BE AFFECTED.

POSSIBLE Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 13:00 1sub to load

condiitonApproved

299 Madurai 230 KV SRPUDUR 230 KVOn 100 MVA Auto Tr I, LV I, HV I breaker &

CT only.OLTC oil changing work. During the LC period Auto Tr II & III will be in service. POSSIBLE Fri, 07-Apr-2017 10:00 Fri, 07-Apr-2017 15:00 1 0 Approved

300 Madurai 230 KV TTPS 230KV TTPS- SIPCOT FEEDER For maintenance work and MRT testing1) Both end breakers to be tripped2) Both end Bus and Line isolators to be opened3) Both

end Earth switches to be closed conditionPOSSIBLE Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1

sub to load

condiiton and

TTPS gen

Approved

301 Madurai 230 KV AMUTHAPURAM 230 KV

Amuthapuran 230KV Bus section-1

consisting of CKNI-1 #,N.M.PATTY-2 # and

P.Tr-1

Routine Maintenance Work

1) During the LC period there will be NO supply in 230KV CKNI #,N.M.PATTY # and P.Tr-

1. 2) P.Tr-1 fed from 230KV KODI-1 # and KODI-2 #. 3) 230KV CKNI #,N.M.PATTY #

Radial from other end. 4) 33KV feeders in respect of P.Tr-1 to be tied with P.Tr-2.Hence

NO Wind generation affected. 5) Hence NO SS will be affected. 6) Cocurrence obtained

from SE/NCES/TIN.

POSSIBLE Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1

sub to wind gen

and 230 CKNI-

NLMPT# in tied

condition.

Approved

302 Erode 230 KV GOBI 230 KV CAPACITOR BANK II BREAKER AND CT'S



WORK

CAPACITOR BANK I IS IN SERVICE AND SUBJECT TO THE VOLTAGE CONDITION approved Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1

subject to the

voltage profile in

the grid

Approved

303 Chennai 230 KV KORATTUR 230 KV50MVA 110/33KV POWER TRANSFORMER -

IGeneral Maintenance Work 50MVA 110/33KV POWER TRANSFORMER - II

CBD

concurrenceFri, 07-Apr-2017 09:00 Fri, 07-Apr-2017 17:00 1 0

Subject to SE/O

concurrence

304 Chennai 230 KV Kadapperi Auto Transformer 1 Monthly Maintenance Work Possible Fri, 07-Apr-2017 09:00 Fri, 07-Apr-2017 17:00 1possible with CBD

concurrenceApproved

305 Chennai 230 KV Kadapperi 110 kVTharamani - Velacherry# Insulator Replacement work Possible Fri, 07-Apr-2017 09:00 Fri, 07-Apr-2017 17:00 1possible with CBD

concurrenceApproved

306 Chennai 230 KV Kadapperi 230 KV Kalivanthapattu feeder Jumper checking at loc.45 Possible Fri, 07-Apr-2017 09:00 Fri, 07-Apr-2017 17:00 1possible with CBD

concurrenceApproved

307 Erode 230 KV Salem 400 KV230 KV MTPS I # - Its CTs, BREAKER, BUS

& LINE SWITCHESBoth end Monthly Maintenance Work Both end Monthly Maintenance Work possible Fri, 07-Apr-2017 8:00 Fri, 07-Apr-2017 14:00 1

subject to the

other feeder

loading limit

Approved


STATION 230 KV230Kv CKNI-Pasumalai-I feeder Entire


Maintenance worksDuring the LC period, there will be no supply in the entire feeder POSSIBLE Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1 0 Approved

309 Madurai 230 KV VALUTHUR 230 KV Auto Transformer I

For attending Auto transformer I HV and LV breakers

and it's CT's and isolators Monthly maintenance

work.

During the LC period Auto Transformer II & III will be in service. Hence there is 'no'

interruption in power evacuation.POSSIBLE Fri, 07-Apr-2017 10:00 Fri, 07-Apr-2017 17:00 1

sub to load

conditionApproved


A) 110 KV KAVANOOR-MANAMADURAI-

SIVAGANGA # BR. & CT B) 110 KV

KAVANOOR-MMDU-SVGA # SEC. BET.

KAVANOOR & MANAMADURAI

MONTHLY MAINTENANCE WORKS AND LINE

MAINTENANCE WORKS

FEEDER TO BE KEPT RADIAL FROM SIVAGANGA TO MANAMADURAI;

MANAMADURAI, ARASANUR AND NELMUDIKARAI SS UNDER TOTAL SHUTDOWN;

L.R. 21.9 MW

POSSIBLE Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1Sub to KKDI Auto

Loading.Approved


KV

Auto-I, HV & LV CBs, CTs, LASs and 230KV

Switches.For regular maintenance works.

During LC period110KV Namakkal SS availing Total Shut Down.110KV Elanagar SS now

back fed throuh 110KV PSI-Rasipuram feeder will be transferred to 230KV Unjanai

SS.110KV Rasipuram SS will be transferred to 110KV Salem-Malllur feeder.Other 110KV

feeders will be catered through Auto-II in service.No supply interruption.

possible Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1

subject to the tsd

relief being

realized

Approved

312 Madurai 110 KV KADALANGUDI 230 KV 110KV Mayiladuthurai- KGTPS feeder entire Line inspection and rectification work No interruption to any SS. All other feeders will be in tied condition. POSSIBLE Fri, 07-Apr-2017 10:00 Fri, 07-Apr-2017 16:00 1 0 Approved


1)110 KV Pasumalai - Sembatty # BKR &

CT,LI only. 2)Section between Pasumalai and

Achampathu

Maintenance Works of BKR,CT and LI.

1) The Feeder will be kept radial from Other end upto Achampathu SS. 2)110KV AB

Switch towards Pasumalai at Achampathu SS and towards Achampathu at Pasumalai SS

will be under open condition.

POSSIBLE Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 14:00 1 0 Approved


230 KV

1)110KV RNPM - Kovilur # Br,CT's & Line

switch's2)110KV RNPM - Kovilur # section

between RNPM and Kovilur SS

1)Monthly Maintenance works2)Tree cutting worksDuring LC period 110KV RNPM - Kovilur # No supply in the feeder.110KV Kovilur

SS,33KV Chatrapatty SS and 33KV Vallipatty SS avail total Shutdown.POSSIBLE Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 16:00 1

sub to load

condition and toal

s/d

Approved

315 Madurai 110 KV KUTTALAM

110 KV KGTPS-MAYILADUTHURAI FEEDER

BREAKER WITH ENTIRE LINE AT BOTH

END.

110 KV KGTPS-MAYILADUTHURAI FEEDER

ANNUAL RELAY TESTING WORKS BY

AEE/P&C/THIRUVARUR AT BOTH END.BREAKER

TESTING AND OTHER MAINTENANCE WORKS IN

ISOLATORS AT KGTPS END.

During the LC period there is no interruption of supply to any ss. POSSIBLE Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1 0 Approved

316 Madurai 230 KV UDAYATHUR 230 KV 230/33kv Power TR 2 HV & LV Breaker Monthly Maintenance Work During the LC period the Power Tr 2 loads will be transferred to other Power Trs. POSSIBLE Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 14:00 1 sub to wind gen Approved

317 Madurai 230 KV TRICHY 230 KV1. 230KV Trichy - Perambalur feeder Breaker

, CTs, Line Isolator and line entire.0

During the L.C period, 1) other end also availing L.C on the same Feeder. 2) All other

230KV feeders will be in tied condition. 3) There will be no interruption of supply to any of

the feeder and SS.


sub to load

condition and

Alandur ICT

Loading

Approved

318 Madurai 230 KV THIRUVARUR 230 KV 230KV Main Bus - I 230KV Main Bus-I maintenance workDuring the LC period 230KV Main Bus-II will be in service. Hence there will be no

interruption of supply to any other substations.POSSIBLE Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1 0 Approved


230 KV

230 KV OKM-Myvadi Feeder Entire (Breaker,

CT's, 89M1, 89M2 & 89L Isolators)for monthly maintenance works. During the LC period, the other 230 KV feeders are in service to cater the SS loads. possible Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1

subject to the load


320 Madurai 110 KV SEMBATTY 230 KV110KV SBT - Alagarkovil II # Bkr, CTs and

sec. bet. SBT and Kosavapatti SS1. Monthly maintenance work2. Tree cutting work

During the LC period, the feeder will be radial from other end upto Kosavapatti SS. Hence

no interruption to any SS.POSSIBLE Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1

sub to load

conditon and alkl

auto loading

Approved

321 Madurai 230 KV SEMBATTY 230 KV230/110KV Auto II, HV II and LV II Bke and

CTsMonthly maintenance work

During the LC period Auto I and III will be in service and adequate to feed the station

load.POSSIBLE Fri, 07-Apr-2017 10:00 Fri, 07-Apr-2017 17:00 1

sub to load

conditonApproved

322 Erode 230 KV Udumalpet 400 KV230 KV MYVADI - OTHAKALMANDABAM

FEEDER BREAKER, CT AND LINE ENTIREMONTHLY MAINTENANCE WORK BOTH END AVAIL LC possible Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1

subject to the load


323 Erode 110 KV DEVIAKURICHI 230 KV 110 KV Thirukovilur Feeder Breaker and CTs. For Monthly Maintenance work 110 KV Thirukovilur feeder will be kept radial from Villupuram 230KV SS end. possible Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1

subject to sldc

chennai

concurrence

Approved

324 Chennai 230 KV ARNI 230 KV 230KV Tie Breaker(Bus Coupler) For monthly maintenance work.During the period of LC, the other 5 No's 230KV feeders and 3 No's Auto-Transformer will

be in service.Hence no interruption of supply please.Possible Fri, 07-Apr-2017 09:00 Fri, 07-Apr-2017 14:00 1 0 Approved


230 KV

On 230 KV SIPCOT-TTPS Feeder breaker

with CTs and line isolators only.

a) For monthly maintenance work. b) Changing of

Main-II Distance RelayÂ During the L.C period, no SS will be affected . POSSIBLE Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1

sub to load

condiiton and

TTPS gen

Approved

326 Erode 110 KV COIMBATORE 230 KV 110KV Arasur feeder Breaker and CTs only For Monthly Maintenance Works

1.Scheduled Shutdown at 110/11KV Kallimadai SS on 07.04.20172.110KV CBE-Arasur

Feeder loads(KPR Mill EHT Service, Sulur Traction EHT Service and 110KV Irugur SS)

will be transferred to 230KV Arasur SS.


subject to the

feeder being kept

radial from arasur

ss

Approved

327 Erode 110 KV UDUMALPET 230 KV110 KV UDUMALPET LINK I FEEDER


DURING LC PERIOD THE ABOVE FEEDER LOADS WILL BE CATER IN 110KV UDT

II&III FEEDERS.possible Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1

subject to the

other two link

feeders loading

limit

Approved

328 Erode 110 KV THUDIALUR 230 KV110KV P.N.Palayam feeder section between

Thudiyalur and Kathirnaickenpalayam SS

Erection of gantry for the new 110KV

Kathirnaickenpalayam feeder110KV P.N.Palayam SS & Thudiyalur local (110/22KV SS) will be under Total shutdown possible Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1

subject to the tsd

being availedApproved

329 Erode 230 KV METTUR AUTO 230 KV230 kv MTPS 1-Salem 400 KVSS I

(K.R.Thoppur feeder I bay

jumbercone tightness checking at MTPS

1,K.R.Thoppur feeder I bayProgrammed LC at MTPS 1 on 07.04.17 possible Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 14:00 1

subject to the

other feeder

loading limit

Approved



other end.possible Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1

subject to the

other two link

feeders loading

limit

Approved


KV230 KV Bus coupler breaker & Isolators Annual relay testing work by P&C Palladam. During the LC period no SS will be affected. possible Fri, 07-Apr-2017 10:00 Fri, 07-Apr-2017 17:00 1

subject to nces

concurrenceApproved

332 Erode 230 KV SINGARAPET 230 KV 230 KV Salem # Breaker, CTs & line isolatorsTo carry monthly maintenance work by


During the LC period both ends Maintenance work programmed and hence no interruption

of supplypossible Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 15:00 1

subject to the load


333 Erode 230 KV SANKANERI 230 KV110KV Sankaneri-Melakallur feeder Breaker

CTS&Lineswitches.For monthly maintenance purpose only.

During the LC Period 110KV Melakallur Supply Radialy upto 110KV VadakkanKulamSS.

Hence no SS will be affaected.POSSIBLE Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 14:00 1 0 Approved

334 Madurai 230 KV SAMAYAPURAM 230 KV100 MVA Auto Transformer-I, HV-I, LV-I,

Breakers , CT's, and isolatorsMonthly Maintenance Work

During the above Shutdown Period 100 MVA Auto Transformer II will be in service. No

interruption to any other SSPOSSIBLE Fri, 07-Apr-2017 10:00 Fri, 07-Apr-2017 17:00 1

sub to load

conditionApproved


110 KV Arasur - Karamadai II feeder( section

between 110 KV Neelambur SS and 110 KV

Kalapatty SS )

For PMI works.

During the Line Clear period,1)110 KV Kalapatty SS and will be fed from 230 KV

Karamadai SS 2)110 KV Neelambur SS will be fed from 230 KV Arasur SS 3)No SS will

be affected during the L.C period.


subject to the

bifurcation of the

feeder

Approved

336 Madurai 230 KV SRPUDUR 230 KVOn 100 MVA Auto Tr I, LV I, HV I breaker &

CT only.

a.OLTC oil changing work. B.Annual relay testing

workDuring the LC period Auto Tr II & III will be in service. POSSIBLE Fri, 07-Apr-2017 10:00 Fri, 07-Apr-2017 15:00 1 repeat Approved

337 Erode 110 KV SALEM AUTO 230 KV110KV Singapuram Feeder-I Breakers, CT's

and Line Isolators.Monthly Maintenance work.

1.110KV Singapuram feeder-I will be fed radially from other end. 110KV Kitchipalayam

SS will be availing total shutdown. There will be no interruption to any SS or feeder.possible Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1

subject to

kitchipalayam ss

availing tsd

Approved


230KV Singarapet feeder & 110KV Capacitor

Bank-I,II Breaker, CTs, Line isolator and

Capacitor.

Monthly maintenance work.

1.230KV Singarapet feeder LC will be availed at both end. 2.3Nos 230KV feeders will be

in service. 3.110KV Capacitor Bank-I and II will be in hand trip condition. 4.There will be

no interruption to any SS or feeder.

possible Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1subject to the load


339 Erode 110 KV INGUR 230 KV 110KV Capacitor Bank I entire MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION approved Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 14:00 1

subject to the

voltage profile in

the grid

Approved

340 Chennai 110 KV MANALI 230 KV 110kv Tondiarpet feederFor making T-off arrangement in 110kv cable point,

for test charging of 110 kv GIS bus

a.110 kv RK Nagar SS and M/s TPL-II loads will be fed from 230kv TPT SSAfter the

LC110kv GIS bus will be energized from Manali AIS SS end and remain in service along

with 110 kv RK Nagar SS and M/s TPL-II loads

Possible Fri, 07-Apr-2017 10:00 Fri, 07-Apr-2017 17:00 1 0 Cancelled

341 Erode 110 KV KARAMADAI 230 KV1.110KV Karamadai-Arasur II feeder section

between Kalapatty and NeelamburSSPMI by AE/Lines /Arasur

During LC Period Kalapatty SS will be fed from Karamadai SS and Neelambur SS will be

fed by 230KV Arasur SSpossible Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1

subject to the

bifurcation of the

feeder

Approved


110KV Salem - Singapuram feeder - I section

between Salem 230KV SS and Udayapataty

110KV SS.

Tension point jumpers checking.

1) 110KV Salem - Singapuram feeder - I breaker kept hand tripped at Salem 230KV SS.2)

110KV Salem - Singapuram feeder - I series switch at Udayaptty 110KV SS towards

Salem will be kept opened.3) There will be no supply in 110KV Salem - Singapuram

feeder - I section between Salem 230KV SS and Udayapataty 110KV SS.4) Udayapatty

110KV SS will be radially fed from Singapuram 230KV SS.5) Kitchipalayam 110KV SS

will be availing Total Shutdown on that day.6) There will be no interruption of supply to

any SS.


subject to

kitchipalayam ss

availing tsd and

udayapatty ss

being fed from

singapuram ss

end

Approved


230 KV

A) 110KV NEMMELI THIPPIYAKUDI-

MADUKKUR FEEDER BREAKER, CT's AND

LINE ISOLATOR. B) 110KV NEMMELI

THIPPIYAKUDI-MADUKKUR FEEDER

A) FOR MONTHLY MAINTENANCE WORK BY

AEE/MTC/N T KUDI.B) FOR PREMONSOON

INSPECTION BY AE/LINES/PATTUKKOTTAI.

1) DURING THE LC PERIOD, 110/33-11KV MADUKKUR SS AND 110KV

THIRUMAKKOTTAI SS RADIALLY FED FROM T(K)GTPS.2) If necessary, 110KV

Kovilkalappal-Madukkur-Pattukkottai tie will be created (by closing the 110KV Pattukkottai

Line isolator no.2 at 110KV Madukkur SS).3) No interruption to any Substation.



110KV Deviakurichi-Thirukoilur

Feeder(Section Between deviakurichi 230KV

SS - Eaduthuvainatham 110KV SS)

Road & Railway crossing jumpers checking.

1)110KV Deviakurichi-thirukoilur Feeder breaker & CT's Maintenance availing

Deviakurichi SS. 2)110KV Deviakurichi-thirukoilur Feeder series switch at

Eaduthuvainatham 110KV SS towards Deviakurichi side will be Kept Opened.3)110KV

Deviakurichi-thirukoilur feeder will be radially fed upto Eaduthuvainatham 110KV SS from

Villupuram 230KV SS.4)There will be no interruption of supply to any SS.


subject to sldc

chennai

concurrence

Approved




SS - Gudamalai 110KV SS)


1)110KV Deviakurichi-Thammampatty Feeder breaker & CT's Maintenance availing

Deviakurichi SS. 2)110KV Deviakurichi-Thammampatty Feeder series switch at

Gudamalai 110KV SS towards Deviakurichi side will be Kept Opened.3)110KV

Deviakurichi-Thammampatty feeder will be radially fed upto Gudamalai 110KV SS from

Pudhanchandai 230KV SS.4)There will be no interruption of supply to any SS.


subject to transfer

of loads to

puthansanthai ss

feed

Approved

346 Erode 230 KV karuvalur230kv230kv Karuvalur-PGCIL feeder breaker with

line switch

For monthly maintenance work and PMI by

palladium lines (OCC approvec) 230kv Karamadai

feeder will be in service

230kv Karamadai feeder will be in service possible Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 17:00 1

occ approved and

subject to load

condition

Approved

347 Madurai 230 KV PERAMBALUR 230 KV230KV Perambalur-Trichy feeder breaker

CT's wave trap & Line Isolater.For monthly maintenance work

During the above period of shut down1) 230KV Trichy SS also avaling total

shutdwon.2)230KV Perambalur SS will be radially fed from 230KV TAQA endPOSSIBLE Fri, 07-Apr-2017 10:00 Fri, 07-Apr-2017 16:00 1

sub to load

condition and

Alandur ICT

Loading

Approved

348 Erode 230 KV ALIYAR 230 KV230KV AUTO TRANSFORMER-II WITH HV

AND LV CB,CTs

Attending oil leakge in the PRV at y-phase by

companyDuring LC period no ss will be affected possible Fri, 07-Apr-2017 10:00 Fri, 07-Apr-2017 16:00 1

subject to the

other auto tr

loading limit

Approved

349 Erode 110 KV ALIYAR 230 KV 110KV ALR LINK FEEDER-II CB,CT ONLY Monthly mtce work Aliyar- PH Under shutdown condition possible Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 12:00 1subject to aliyar

machine utilizationApproved

350 Erode 110 KV ALIYAR 230 KV 110KV ALR LINK FEEDER-I CB,CT ONLY Monthly Mtce work Aliyar -PH under shutdown condition 0 Fri, 07-Apr-2017 13:00 Fri, 07-Apr-2017 16:00 1 repeat of 53714 Not considered


i) On 110KV Capacitor Bank-I and 110KV

by one

i)For Monthly Maintenance Works110KV Capacitor Bank-I and 110kv Capacitor Bank-II ONE by one will be in 'OFF'

condition iii)The 230KV Link-II, 230KV Chittoor interstate feeders,230KV Link-I # and

230KV Mosur feeders will be in service and cater the SS Loads. Hence there will be no


SE/Operation

concurrenceFri, 07-Apr-2017 09:00 Fri, 07-Apr-2017 17:00 1 0 Approved


KV

110 APKM - T. Kallupatti # Br., CT. and line

section between 110 KV Thiruthangal SS and

Erichanatham SS.

Maintenance Works of BKR & CT,LI and Watrap

LILO loc. No. 2 jumper bolt rectification work and

replacement of flash over disc at Loc.No.72 between

110 KV Valayapatti SS and Srivilliputhur SS.

During the LC period,110 KV Valayapatti SS, Watrap SS, Erichnatham SS will be availing

Total Shut down and 110 KV TTL SS loadwill be transferred to 110KV PPTY feeder &

110KV T.Kallupatti SS load will be transfered to 110KV APKM-PSQ feeder. At

Erichanatham SS towards Watrap 110 KV isolator opend and at TTL SS towards

Valayapatti SS 110 KV isolator will be opend. Hence no SS will be affected.


353 Chennai 230 KV VILLUPURAM 230 KVFor monthly maintenance work. (annual relay testing

work)

Auto T/R-I will be in service &110KV Thirukovilur #, & Acpkm-II, Thayanur feeder will be

Radial from other end.Possible Fri, 07-Apr-2017 09:00 Fri, 07-Apr-2017 17:00 1 0 Approved

354 Chennai 110 KV VILLUPURAM 230 KV110KV Madurapakkam- I # Between

Madurapakkam- I KandamangalamFor monthly maintenance work.

Kandamangalam SS availing total shutdown for tightening jumpers and Tree cutting at

EHT line.Possible Fri, 07-Apr-2017 09:00 Fri, 07-Apr-2017 17:00 1 0 Approved

355 Chennai 230 KV ACHRAPAKKAM 230 KV 100 MVA AUTO TR.I FOR MONTHLY MAINTENANCE WORK1.100 MVA AUTO TR.II &III WILL be in service cater the entire ss load 2.110 kv s p koil#

and Korattur-II # WILL BE RADIAL FROM OTHER ENDPossible Fri, 07-Apr-2017 09:00 Fri, 07-Apr-2017 12:00 1 0 Approved

356 Madurai 110 KV PERIYAR110 KV PERIYAR - THENI FEEDER -I

ENTIRE

Feeder Breaker with CT and Line side AB Switch for

annual maintenance work

During the LC period Uthamaplayam ss Load will transferred to 110 KV Periyar-Theni - 2

feeder and Gamesa & Regen Kamatchipuram wind mill SS effected.POSSIBLE Fri, 07-Apr-2017 9:00 Fri, 07-Apr-2017 13:00 1

Sub to

concurrance from

wind generators

Approved

357 Chennai 230 KV Nokia 230 KV 230KV Sriperumbudur# MONTHLY MAINTENANCE WORK Possible Fri, 07-Apr-2017 09:00 Fri, 07-Apr-2017 17:00 1 0 Approved

358 Chennai 230 KV Orgadam 230 kV 230 kV Spkoil # MONTHLY MAINTENANCE WORK Possible Fri, 07-Apr-2017 09:00 Fri, 07-Apr-2017 17:00 1 0 Approved

359 Erode 230 KV THUDIALUR 230 KV 230KV O.K.Mandapam feeder entire Monthly maintenance and annual relay testing 230KV PH4,Karamadai & CBE feeders will be in service postponed Sat, 08-Apr-2017 9:00 Sat, 08-Apr-2017 17:00 1

230 kv palladam

to

othakalmandapam

feeder lc

recommended

Approved

360 Chennai 230 KVECHUR 230 KV & SP

Koil lines230 kv ECHUR - Kalpakkam feeder

Monthly Maintenance Work and Insulator

Replacement workPending Sat, 08-Apr-2017 09:00 Sat, 08-Apr-2017 17:00 3 0 Approved

361 Chennai 230 KV TONDIARPET 230 KV 100 MVA AUTO TRANSFORMER-II FOR ROUTINE MAINTENANCE WORKSDURING THE PERIOD OF SHUTDOWN , EXCEPT 100 MVA AUTO TRANSFORMER-II

ALL OTHER FEEDERS AND EQUIPMENTS WILL BE IN SERVICE.Possible Sat, 08-Apr-2017 09:00 Sat, 08-Apr-2017 13:00 1 0 Approved

362 Chennai 110 KV KILPAUK 230 KV 110KV Western Bus Routine Maintenance work

During the period of shutdown1)110KV KWWI feeder loads will be transferred to KWWII

feeder2)110KV AnnaNagar feeder load will be transferred to 230KV Korattur SS

feeding3)100MVA Auto Transformer I will not be inservice

Possible Sat, 08-Apr-2017 09:00 Sat, 08-Apr-2017 16:00 1Subject to CBD

concurrenceApproved

363 Madurai 110 KV KODAIYAR PH2 110 KV S.R.Pudur feeder-2 SF6 breaker A) Monthly maintenance B) Annual relay test Feeder will be radial from other end. Hence no SS will be affected. POSSIBLE Sat, 08-Apr-2017 9:00 Sat, 08-Apr-2017 17:00 1 0 Approved


230 KV

230KV OKM-Thudiyalur Feeder Entire

(Breaker, CT's, 89M1, 89M2 & 89L Isolators)for monthly maintenance works. During the LC period, the other 230 KV feeders are in service to cater the SS loads. postponed Sat, 08-Apr-2017 9:00 Sat, 08-Apr-2017 17:00 1

230 kv kph 2 to

kph 3 lc

recommeded

Approved

365 Chennai 230 KV TONDIARPET 230 KV 230KV NORTHERN BUS SECTION

230KV NORTHERN BUS SECTION WEAK

JUMPERS REPLACEMENT AND CLAMPS

TIGHTNESS CHECK.

1. 230KV TPT-ETPS & 230KV TPT-NCTPS-I FEEDERS WILL NOT BE IN SERVICE. 2.

100 MVA AUTO TR-II WILL NOT BE IN SERVICE. 3. 230KV LOAD TO BE RESTRICTED

TO ONE SOURCE FEEDER.

May be

possibleSun, 09-Apr-2017 06:00 Sun, 09-Apr-2017 17:00 1

Subject to load

conditionApproved

366 Chennai 230 KV SIRUSERI 230 KV230 Kalivanthapattu # & 230 KV Western Bus

(129th OCC approved)Maintenance work

DURING THE PERIOD OF SHUTDOWN 1) 230KV Kalivanthapattu #,230KV KITS

Park#,100MVA AUTO TR-II & 230 KV Western Bus will not be in service. 2) The 230KV

KITS Park SS load will be fed by 230KV Taramani SS. 3) 110KV Sholinganallur SS load

will be transferred to 230KV KITS PARK SS.

Possible OCC

Appd.129/107Sun, 09-Apr-2017 10:00 Sun, 09-Apr-2017 17:00 1

Subject to Grid

conditionApproved

367 Erode 230 KV KUNDAH PH3 230KV PH3 - PH2 FEEDER For monthly maintenance work Both end open condition, MODS are open condition 0 Sun, 09-Apr-2017 8:00 Sun, 09-Apr-2017 17:00 1 0 Approved

368 Erode 230 KV KUNDAH PH3 230KV KPH2 Feeder to KPH3 Feeder 230KV KPH2 Feeder to KPH3 Feeder230KV KPH2 Feeder to KPH3 Feeder Tower No:13-24 Pre-Monsoon Inspection

work(PMI) and Maintenance work.0 Sun, 09-Apr-2017 9:00 Sun, 09-Apr-2017 17:00 1 0 Approved

369 Chennai 230 KV KORATTUR 230 KV 230 KV Korattur-SPR feeder Jumper Tightness at various Location All other feeder will be in services Possible Sun, 09-Apr-2017 09:00 Sun, 09-Apr-2017 17:00 1 0 Approved

370 Erode 110 KV KUNDAH PH5 110KV STRUNG BUS ONLY

1).NEW STATION BATTERY CHARGER

COMMISSIONING WORK..2).110KV PH5 TO PH6

FEEDER BUS ISOLATOR R PHASE JUMPER

GLOW RECTIFICATION WORK AT BUS SIDE..

DURING THE LC PERIOD UNITS 1& 2 WILL BE UNDER NOT S/B CONDITION.ALL

THE FEEDERS WILL BE FEED FROM OTHER END..possible Sun, 09-Apr-2017 10:00 Sun, 09-Apr-2017 13:00 1

subject to the grid

and the load

condition existing

Approved

371 Chennai 230 KV KOYAMBEDU 230 KV 230 KV GIS FEEDER For SF6 Gas Leak attending work. 230 KV Load may be restricted within 230 KV SPR Feeder. Possible Sun, 09-Apr-2017 10:00 Sun, 09-Apr-2017 17:00 1 0 Approved

372 Chennai 230 KV TONDIARPET 230 KV 100 MVA AUTO TRANSFORMER-I FOR ROUTINE MAINTENANCE WORKSDURING THE PERIOD OF SHUTDOWN , EXCEPT 100 MVA AUTO TRANSFORMER-I

ALL OTHER FEEDERS AND EQUIPMENTS WILL BE IN SERVICE.Possible Sun, 09-Apr-2017 09:00 Sun, 09-Apr-2017 13:00 1 0 Approved

373 Chennai 230 KV KORATTUR 230 KV 230 KV NCTPS-SPR feeder Jumper Tightness at Various location All other feeder will be in services Possible Sun, 09-Apr-2017 09:00 Sun, 09-Apr-2017 17:00 1 0 Approved

374 Chennai 400 KV Sriperumbudur 400 KV Auto-1,400/230kv,315MVA Monthly maintenance work During the period of shutdown Auto-2 & 3 will be in servicePossible OCC

Appd. 129/138Sun, 09-Apr-2017 09:00 Sun, 09-Apr-2017 17:00 1 0 Approved

375 Chennai 230 KV TONDIARPET 230 KV 230KV SOUTHERN BUS SECTION

230KV SOUTHERN BUS SECTION WEAK

JUMPERS REPLACEMENT AND CLAMPS

TIGHTNESS CHECK.

1. 230KV TPT-BASIN BRIDGE & MANALI FEEDERS WILL NOT BE IN SERVICE.2. 100

MVA AUTO TR-III WILL NOT BE IN SERVICE.3. 230KV LOAD TO BE RESTRICTED TO

THTEE SOURCE FEEDERS.

To be discuss Sun, 09-Apr-2017 06:00 Sun, 09-Apr-2017 17:00 1 0 Postponed

376 Erode

GENERATI

NG

STATIONS

PUSHEP UNIT 2 MONTHLY MAINTENANCE WORK UNIT 2 IN SHUT DOWN CONDITION possible Sun, 09-Apr-2017 9:00 Sun, 09-Apr-2017 17:00 1subject to the grid


377 Chennai 230 KV KITS 230 KV230KV Siruseri # and 110KV Velachery # one

after anotherFor Quarterly maintenance work

During the above shutdown period 230KV Tharamani # will be feeding the entire KITS SS

loads except 110KV Velachery # loads which will be transferred to 230KV Tharamani SS

and 110KV Veerapuram # which will be in back charged condition

Possible with

CBD

concurrence

Sun, 09-Apr-2017 07:00 Sun, 09-Apr-2017 15:00 1 0 Approved


KV110KV Periyapalayam feeder bay

Monthly maintenance work , CT clamp and bolt nuts

replacement work

During the period of shut down the 110KV Periyapalayam SS availing total shut down

concurance to be obtained from JR metals EHT .Possible Sun, 09-Apr-2017 10:00 Sun, 09-Apr-2017 17:00 1 0 Approved

379 Erode 230 KV KUNDAH PH3 230KV KPH2 to KPH3 Feeder

230KV KPH2 to KPH3 Feeder Tower No:25 to 35.

Pre-Monsoon Inspection work(PMI) and

Maintenance work.

Bus and Line both end open condition Earth switch closed condition. postponed Sun, 09-Apr-2017 9:00 Sun, 09-Apr-2017 17:00 1

230 kv kph 3 to

kph 4 lc

recommended

Approved


230KV KPH2 to KPH3 Feeder Tower No:13 to 24


Maintenance work.


110 kv kph 2 to

thudiyalur lc

recommended

Approved

381 Madurai 110 KV PUGALUR 230 KV110KV Kabilarmalai Radial feeder

Breaker,CTs line switch onlyMonthly Maintenance work.

During the LC period 1) 110KV Kabilarmalai SS is proposed total shutdown,remaining

110KV Valavanthi SS, Villipalayam SS and 110 KV P.Velur SS load will be fed from

230KV SS Pudansandai via 110KV Valayapatty feeder. Concurance obtained from

EE/O/Pudansanthai. there is No interruption to any SS.

POSSIBLE Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1sub to total s/d

and load trnasfer

Approved Subject to

load condition

382 Erode 230 KV MTPS MTPS-I to Salem 400 KV SS-II Monthly maintenance Programmed LC possible Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1

subject to the

other feeder

loading limit

Approved

383 Erode 110 KV THINGALUR 230 KV110KV INGUR feeder breaker,CTs and Line

IsolatorsMonthly Maintenance Works The feeder will be back charged possible Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1

subject to the load


384 Madurai 230 KV PASUMALAI 230 KV1) 230 KV Pasumalai - Alagarkoil # BKR &

CT,LI only. 2).Line Entire.

a)Maintenance Works of BKR & CT,LI b)Tree cutting

worksEE / O / Alagarkoil has also programmed. POSSIBLE Mon, 10-Apr-2017 0:00 Mon, 10-Apr-2017 0:00 1

230 Alandur # to

be in tied

condition

Approved

385 Madurai 230 KV TTPS 23KV TTPS-KNMLM FEEDER For maintenance work and MRT testing1)Both end Breakers to be tripped2)Both end Bus and Line isolators to be opened3)Both

end Earth switches to be closed conditionPOSSIBLE Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1

sub to CKNI ICT

loadingApproved

386 Erode 230 KV GOBI 230 KVAUTO TRANSFORMER II HV,LV BREAKER

AND CT'S



WORK

AUTO TRANSFORMER I AND III ARE IN SERVICE,IT MAY CATER THE LOAD. possible Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1

subject to the

other auto trs

loading limit

Approved

387 Madurai 230 KV Alagarkoil230kv230kv ALKL-Pasumalai # breaker CT,Line

CVT & Line entirefor monthly maintenance work

During the LO.C period the 230KV SUPPLY WILL BE FED FROM 230KV other feeder ,

other end also proposed L.C on the same date,hence there will be no interru8ption of

supply please.

POSSIBLE Mon, 10-Apr-2017 10:00 Mon, 10-Apr-2017 16:00 1

230 Alandur # to

be in tied

condition

Approved

388 Erode 230 KV Salem 400 KV230 KV MTPS II # - Its CTs, BREAKER, BUS

& LINE SWITCHESBoth end Monthly Maintenance Work Both end Monthly Maintenance Work possible Mon, 10-Apr-2017 8:00 Mon, 10-Apr-2017 14:00 1

subject to the

other feeder

loading limit

Approved

389 Madurai 230 KV then I 230 KV230 KV AUTO TRANSFORMER II HV & LV

BREAKER WITH CT.FOR MONTHLY MAINTENANCE WORK.

FOR MONTHLY MAINTENANCE WORK.THE STATION LOADS WILL BE MANAGED

OTHER TWO AUTO TRANSFORMERS.POSSIBLE Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 13:00 1 0 Approved


STATION 230 KV230KV B-Bus Entire For Monthly maintenance works

During the LC period, no supply will be affected and all the 230KV Feeders fed through A-

BusPOSSIBLE Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1 0 Approved

391 Madurai 230 KV VALUTHUR 230 KV 230KV Valuthur - Karaikudi feeder entire. Tree cutting work.During the LC period evacuation will be done through 230KV Valuthur - Kavanoor and

Alagarkovil feedersPOSSIBLE Mon, 10-Apr-2017 10:00 Mon, 10-Apr-2017 17:00 1 0 Approved


110 KV KAVANOOR-PARAMAKUDI # SEC.

BET. PARAMAKUDI TO ILAYANGUDI &

MARAVAMANGALAM

LINE MAINTENANCE WORKSPMDI SS FED BY 110 KV KVNR-PMKDI # AND ILYNGDI & MRVMNGLM TOTAL S/D-

LOAD RELIEF 6.05 MW ACE/OPN/MDU APPROVALPOSSIBLE Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1 sub to total s/d Approved

393 Madurai 230 KV KARAIKUDI 230 KVOn 230/110KV Auto Tf- 1 and its allied

equipments.For Monthly Mtc work.

During the Lc period the Auto tr.f- 1 load will be Contained other Auto. Tr.f- 2 & 3.Hence

there will be interruption of supply.POSSIBLE Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1

sub to load

condiitonApproved

394 Madurai 110 KV KARAIKUDI 230 KVOn 110KV illayankudi # S/B illayangudi &

Maravamangalam.For Tree Cutting Work.

During the Lc period the 110KV illayangudi SS & Maravamangalam SS under TSD.

Hence there will be Interruption of Supply.POSSIBLE Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1 sub to total s/d Approved

395 Madurai 230 KV kinnimangalam 230 KV 230KV KNMLM - TTPS # Maintenance works of breaker,CT and Line No supply in the entire feeder POSSIBLE Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1sub to CKNI ICT

loadingApproved


230 KV

230/110 KV Auto Transformer-III (HV & LV

Breakers, CTs & LAS)

For Annual relay testing work by GRT wing and

monthly maintenance works.

During the LC period, (1) 110KV OKM-Thudiyalur I feeder loads will be transferred to 230

KV TDLR SS (if necessary)(2) Already 110KV OKM-Thudiyalur II feeder fed from 230 KV

TDLR SS.(3) The remaining two Auto Transformers will be in service to cater the SS

loads.

postponed Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1

auto tr lc at

thudiyalur ss

recommended

Subject to

EE/SLDC/Erode

approval

397 Chennai 230 KV TONDIARPET 230 KV50 MVA POWER TRANSFORMER-I &33 KV

TPT-II FEEDERFOR ROUTINE MAINTENANCE WORKS

DURING THE PERIOD OF SHUTDOWN , 50 MVA POWER TRANSFORMER-I WILL

NOT BE IN SERVICE 33 KV TPT-II FEEDER LOAD TO BE TRANFRRED TO

ALTERNATE FEEDING.

CBD

concurrenceMon, 10-Apr-2017 09:00 Mon, 10-Apr-2017 14:00 1 0

Subject to SE/O

concurrence

398 Madurai 230 KV EACHANGADU 230 KV230 KV Eachangadu-Neyvely TS I # Breaker

& CT'sFor monthly maintenance works

During the above shutdown period the 230 KV Eachangadu ss will be Radially fed from

230KV Samayapuram ss.POSSIBLE Mon, 10-Apr-2017 10:00 Mon, 10-Apr-2017 17:00 1

sub to Aldr ICT

loadingApproved

399 Madurai 110 KV SEMBATTY 230 KV110KV SBT - Theni II # sec. bet. Nilakottai

and Eluvanampatti SSTree cutting work

During the LC period the feeder will be radial from SBT upto Nilakottai SS and radial from

other end upto Eluvanampatti SS. Batlagundu SS will be transferred to Theni I #. Hence

no interruption to any SS.

POSSIBLE Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1sub to load

condiitonApproved

400 Madurai 110 KV KAYATHAR 230 KV110Kv Kayathar - Anuppankulam sec b/w

KOvilpatti & duraisamypuramFor Defective disc replacement work

During the LC Period ,I.Kovilpatti SS will be radially fed from

Anuppankulam,II.duraisamypuram SS wiil be radially fed from Kayathar.POSSIBLE Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1

sub to load

condiitonApproved

401 Erode 110 KV DEVIAKURICHI 230 KV 110 KV Thammampatty Feeder Breaker, CTs For Monthly Maintenance work

110KV Thedavoor SS availing Total Shutdown. Goodamalai SS; Thammampatty SS and

Mettala SS availing back feeding Supply from 230KV pudansandhai SS by closing series

switch at110 KV Namagiripet SS towards Deviyakurichy side.


subject to transfer

of loads to

puthansanthai ss

feed

Approved

402 Chennai 400 KV Thiruvalam 400 KV ICT - I Maintenance work

1)ICI- I in OFF condition 2)ICT- II in service for 230kv feeder loads3)230KV Singarapet

feeder may be hand tripped,if load on ICT-II reached above 280MW4)400kv ALAMATHY -

I feeder in service from its main breaker thro 400KV Bus -I

Possible OCC

Appd. 129/140Mon, 10-Apr-2017 09:00 Mon, 10-Apr-2017 16:00 1 0 Approved

403 Chennai 110 KV KORATTUR 230 KV 110 KV Avadi-SPR feeder Jumper Tightness at various location All other feeder will be in services Possible Mon, 10-Apr-2017 08:00 Mon, 10-Apr-2017 17:00 1 0 Approved


230 KV

On 230KV IBPGL feeder No.(II)breaker with

CTs only.

a) For monthly maintenance work. b) For annual

relay test.

During the LC period, the 230KV IBPGL Feeder No.I will be in service for their evacuation

of power and no interruption in evacuation and the amount has been paid by M/s. IBPGL

and no other SS will be affected.


405 Erode 230 KV UDUMALPET 230 KVAUTO TRANSFORMER III HV III & LV III

COMPLETEFOR MONTHLY MAINTENANCE WORKS 3 AUTOS ARE IN PARALLEL . LOADS ARE SHARED WITH OTHER TWO AUTOS. possible Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1

subject to the

other auto trs

loading limit

Approved

406 Erode 230 KV THUDIALUR 230 KV 100MVA,Auto Transformer-III,HV-III & LV-III For Monthly Maintenance Work 100MVA Auto Transformer I & II Will be in Service possible Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1

subject to the

other auto trs

loading limit

Approved

407 Erode 110 KV Udumalpet 110 KV

Gudimangalam


other end.possible Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1

subject to the

feeder being kept

radial from

ponnapuram ss

end

Approved

408 Erode 230 KV METTUR AUTO 230 KV 230 KV MTPS 1- K.R.Thoppur II feeder entireJubber cone tightness checking at MTPS 1 in

K.R.Thoppur II BayProgrammed LC at MTPS 1- On 10.04.2017 possible Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 14:00 1

subject to the

other feeder

loading limit

Approved

409 Madurai 110 KV SANKANERI 230 KV110KV Sankaneri-SRputhoor feeder Breaker

CTS&Lineswitches.

For monthly maintenance purpose & GRT Annual

Relay Testing purpose.

During the LC Period 110KV SRputhoor Supply Radialy upto 110KV Irrukkandurai SS.

Hence no SS will be affaected.POSSIBLE Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 14:00 1 0 Approved

410 Erode 110 KV ARASUR 230 KV110 KV Arasur-Karamadai-I # Breaker and

CTs.For Monthly maintenance work.

During the Line Clear period,1)110 KV Kaduvettipalayam SS under Total Shut down.2)

110 KV Arasur-Karamadai-I feeder will be fed from 230 KV Karamadai SS.possible Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 12:00 1

subject to tsd

being reaized and

the feeder being

kept radial from

karamadai ss end

Approved

411 Madurai 230 KV ALUNDUR 230 KVOn 110 KV Alundur - Vadugapatty Feeder

and Breaker.

a)Preventive Monthly Maintenance work b)

Premonsoon inspection work and tree cutting work.

c) Relay Testing work.

a) 110KV Vadugapatty is radial feeder. B) 110KV Vadugapatty,Pakkudy and

Ammachatram SS avail Total shutdown. C) All other 110KV feeders will be in service. d)

There will be no interruption of supply to any other feeders and SS.

POSSIBLE Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1 sub to total s/d Approved

412 Erode 110 KV Singarapet 110 KV110 KV Vinnavanur # SF6 Bkr, CTs & LINE

ISOLATORMonthly maintenance work

During the LC period, 1. At 110KV Chengam SS line isolator towards Singarapet will be

kept opened by availing blink hence no interruption of supplypossible Mon, 10-Apr-2017 0:00 Mon, 10-Apr-2017 0:00 1

subject to sldc

chennai

concurrence

Approved

413 Erode 110 KV SALEM AUTO 230 KVIsolator

Monthly Maintenance work

1. 110KV Sankari feeder will be radially fed from other end. 2. 110KV Mallasumathram

SS will be availing total shutdown or fed from 230KV Unjani SS through Paruthipalli

feeder 3. There will be no interruption to any SS or Feeders


subject to

mallasamudram

ss availing tsd

Approved

414 Erode 230 KV INGUR 230 KV and Line side Isolator and 230 KV main Bus

& Auxillary Bus switch

MONTHLY MAINTENANCE WORKS OTHER END ALSO AVAILED LC ON THAT DAY possible Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 14:00 1subject to the load


415 Madurai 110 KV KAYATHAR 230 KV110 KV Kayathar - Papanasam # Breaker

with CT only

A) For Monthly Maintenance workB) For GRT Annual

Relay testing worksDuring the LC period other end also avails LC hence no ss affected POSSIBLE Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1

sub to ppm pwd

demandApproved

416 Erode 230 KV karamadai230KV 230KV Karamadai-Ingur feeder.

By AE/Lines/Thudialur to carry out the follwing

works: i)Releasing and restringing 3 nos KUNDAH

conductor & 1 no of earth wire between Loc.171-

172ii)stringing of 3 nos Zebra conductor & 1 no earth

wire between Loc.35-36

LC programmed at other end also. possible Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 16:00 1subject to the load


417 Erode 230 KV METTUR AUTO 230 KV 230KV MTPS II FEEDER MONTHLY MAINTENANCE WORK DURING THE LC PERIOD OTHER230KV FEEDERS WILL BE IN SERVICE possible Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1

subject to the

other feeder

loading limit

Approved


110KV Salem - Sankagiri feeder section

between Salem 230KV SS and Veerapandy

110KV SS.

Railway crossing jumpers checking.

1) 110KV Salem - Sankagiri feeder breaker kept hand tripped at Salem 230KV SS.2)

110KV Salem - Sankagiri feeder series switch at Veerapandy 110KV SS towards Salem

will be kept opened.3) There will be no supply in 110KV Salem - Sankagiri feeder section

between Salem 230KV SS and Veerapandy 110KV SS.4) Veerapandy 110KV SS will be

radially fed from Sankagiri 110KV SS.5) Salem 230KV SS is availing breaker and line

switch LC on that day. 6) Mallasamudram 110KV SS will availing total shut down on that

day.7) There will be no interruption of supply to any SS.


subject to

mallasamudram

ss availing tsd

Approved


230 KV

A)230KV TRANSFER BUS COUPLER

BREAKER AND CT's.B)110KV N T KUDI-

MADUKKUR-THIRUMAKKOTTAI-

KOVILKALAPPAL FEEDER (LP:

KOVILKALAPPAL TO 110KV

THIRUMAKKOTTAI SS)

A)FOR MONTHLY MAINTENANCE WORK BY

AEE/MTC/N T KUDI AND ANNUAL RELAY TEST

BY AEE/P&C/THANJAVUR.B)FOR PREMONSOON

INSPECTION WORK BY

AE/LINES/PATTUKKOTTAI

A)230KV FEEDERS ARE TIED CONDITION AND NO INTERRUPTION TO ANY

SS.B)DURING THE LC PERIOD, 110KV MADUKKUR SS AND 110KV

THIRUMAKKOTTAI SS RADIALLY FED FROM 230KV NT KUDI SS. C) NO

INTERRUPTION TO ANY OTHER SS.





SS - Gudamalai 110KV SS)


1)110KV Deviakurichi-Thammampatty Feeder breaker & CT's Maintenance availing

Deviakurichi SS. 2)110KV Deviakurichi-Thammampatty Feeder series switch at

Gudamalai 110KV SS towards Deviakurichi side will be Kept Opened.3)110KV

Deviakurichi-Thammampatty feeder will be radially fed upto Gudamalai 110KV SS from

Pudhanchandai 230KV SS.4)There will be no interruption of supply to any SS.


subject to transfer

of loads to

puthansanthai ss

feed

Approved


110 KV Palladam - SIPCOT II feeder

breaker,CT's and Line side isolator with Line

up to 110 KV Alagumalai SS

1) To carry out Monthly maintenance by

AEE/maintenance/Palladam2) To carryout

Premonsoon inspection on line by

AEE/Lines/Palladam

During LC period 1). 110 KV Alagumalai SS availing Total shut down2) 110 KV

Muthalipalayam SS will be fed from 230 KV Ingur3) No other Sub station will be naffectedpossible Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 15:00 1

subject to transfer

of loads to ingur

ss feed

Approved

422 Erode 110 KV KARAMADAI 230 KV110KV Mettupalayam-madhampalayam

feeder

PMI works in between Loc.90 and 134 by

AE/Lines/KattabettuLC programmed at both end. possible Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1

subject to the load


423 Madurai 110 KV KOVILKALAPAL

110 KV T(K)GTPS - Madukkur- NT Kudi

feeder (Line portion between T(K)GTPS and

110 KV Thirumakkottai SS)

Breaker, CTs and line isolator maintenance worksDuring the LC period suply will be fed radially from 230 KV SS, NT Kudi upto 110 KV

Thirumakkottai SS.No interruption to any SS.POSSIBLE Mon, 10-Apr-2017 10:00 Mon, 10-Apr-2017 16:00 1 0 Approved

424 Erode

GENERATI

NG

STATIONS

PYKARA UNIT 1 FOR MONTHLY MAINTENANCE WORK NIL possible Mon, 10-Apr-2017 8:00 Mon, 10-Apr-2017 17:00 1other units will be

availableApproved

425 Erode 110 KV ALIYAR 230 KV110KV ALR-SLR FEEDER NO-1 CB,CT AND

LINE ENTIRE

Tower replacement work at LOC 33 TO 36 by

erecting temporary tower

1)During the LC period SLR feeder no-II will caters the load2)line LC Programmed by

AE/TLC/UDTpossible Mon, 10-Apr-2017 8:00 Wed, 12-Apr-2017 18:00 3

other feeder will

be in serviceApproved

426 Chennai 110 KV MOSUR 230 KV110 KV Mosur Link-I Feeder Breaker, CT &

Line Isolators one by oneFor attending monthly Maintanance work

i. 110 KV Mosur Sub-station availing TSD work ii. The Railway I&II will be in service and

avail supply from 110 KV Mosur Link-II Feederiii Hence there will be no interruption of

supply ,


427 Chennai 110 KV MOSUR 230 KV110 KV Mosur-LINK II Feeder Breaker, CT &

Line Isolators one by oneFor attending monthly Maintanance work

i. 110 KV Mosur Sub-station availing TSD work ii. The Railway I&II will be in service and

avail supply from 110 KV Mosur Link-I Feederiii Hence there will be no interruption of

supply ,



KV

a) 110KV NSPM- KYTR # Breaker b) 110KV

NSPM- KYTR # Line upto Vijayapuri SS

a) New Breaker wiring and testing & commissioning

works. b) Swapping of 110 KV NSPM -KYTR line

from existing bay to new bay.

During the LC period, (a) 110KV NSPM- KYTR feeder breaker will be kept in tripped

condition at NSPM SS. b) N.Subbiahpuram-Kayathar feeder will be radialy fed from other

end upto 110 KV Viyajapuri SS. Hence No SS affected.Concurrence obtained from

SE/VREDC/VDR.

POSSIBLE Mon, 10-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 2 0 Approved

429 Erode 110 KV INGUR 230 KV

110KV Elumathur - Pugalur # section

between 110KV Kodumudi SS & 110KV

Sivagiri SS and 110KV Nadu palayam SS

to attend jumper tightness work at tower loc no:110

near othakadai

1.No SS will be affected during the LC period2. 110KV Elumathur SS & 110KV Sivigiri SS

has programmed total shutdown on 10.04.20173.110KV Kodumudi SS Supply can be fed

from Pugalur 230KVSS4.110KV Nadupalayam SS supply can be fed from 110KV Erode

SS


subject totsd relief

in the

interconnected ss

Approved

430 Erode 230 KV KUNDAH PH3 230KV KPH2 Feeder to KPH3 Feeder

230KV KPH2 Feeder to KPH3 Feeder Tower No:01

to 12 Pre-Monsoon Inspection work(PMI) and

Maintenance work.

Bus and Line both end open condition Earth switch closed condition. possible Mon, 10-Apr-2017 9:00 Mon, 10-Apr-2017 17:00 1subject to the load


431 Erode 230 KV KUNDAH PH3 230KV KPH3 Feeder to KPH4 Feeder

230KV KPH3 Feeder to KPH4 Feeder Tower No 11

to 19 Pre-Monsoon Inspection work(PMI) and

Maintenance work.

Bus and Line both end open condition Earth switch closed condition. 0 Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1 0 Approved


between Nattarmangalam and ArasanoorTree cutting Works

1) The sakthisugars feeder will be kept radial from Alkl end through 110KV Alagarkoil -

Karaikudi Feeder feeding Uranganpatty SS, Nattarmanaglam and upto Nelmudikarai SS

2)The feeder will be radial from Sakthisugars feeding upto Arasanoor SS 3) At

Nelmudikarai SS the switch towards Arasanoor SS will be kept opened and earthed.4) At

Arasanoor SSthe switch towards Nelmudikarai SS will be kept opened and earthed.

5)110KV Sakthisugar -Sivaganga Feeder will be in grid . 6)110KV Alagarkoil - Karaikudi

Feeder will be radial from Karaikudi upto Narasingampatti SS. 7) At Narasingampatti SS

the switch towards Alagarkoil will be kept open. 8) 110/33-11KV Nelmudikarai SS and

Arasanoor SS will be under Shutdown.

0 Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 14:00 1Approved Subject to

load condition

433 Madurai 230 KV VEERANAM 230 KVPower transformer -II,HVBR-II,LVBR-II &

33kv feeders of Ramco, Windfarm, EnerconQuertaly & Monthly maintenance work

During the lc period there will be no supply in entire power transformer -II & 33kvfeeders

and concurrence obtained from SE/NCES/TIN.POSSIBLE Tue, 11-Apr-2017 10:00 Tue, 11-Apr-2017 17:00 1 sub to wind gen Approved

434 Chennai 230 KV THIRUVERKADU 230 KV 230/110KV, 100 MVA Auto Transformer I For routine monthly maintenance workDuring the period of shutdown 230/110KV, 100 MVA Auto Transformer II will be in

service, hence no interruptionPossible Tue, 11-Apr-2017 10:00 Tue, 11-Apr-2017 17:00 1 approved Approved

435 Madurai 110 KV kodikurichy230kvOn 110KV Kodikurichi WF # breaker with CT

and All isolatorsFor Monthly Maintenance work. 110 Kodikurichi WF SS monthly shudown approved by SE/NCES/Tirunelveli. POSSIBLE Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1 sub to wind gen Approved

436 Madurai 230 KV KAYATHAR 230 KV

On 110KV Kayathar -Arumuganeri feeder

breaker Section between kayathar and

palayamkottai SS

For a)Monthly maintenance work b)Tower to tower

inspection work

During the LC period, Palayamkottai SS will be radially fed from 110KV Arumuganeri SS.

Hence no SS affected.POSSIBLE Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1

sub to load

conditionApproved

437 Madurai 230 KV PASUMALAI 230 KV1) 230 KV Pasumalai - Anupankulam #

BKR,CT and LI only.a)Maintenance Works of BKR & CT,LI EE / O / ANPKM has also programmed POSSIBLE Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 14:00 1

sub to load

conditionApproved

438 Erode 230 KV KUNDAH PH3 230 KV PH3 - PH4 FEEDER For monthly maintenance work Both ends open condition, MODS are open condition possible Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1subject to the load


439 Madurai 230 KV AMUTHAPURAM 230 KV

Amuthapuran 230KV Bus section-2

consisting of Kodi-1 #,Kodi-2 # and P.Tr-

2,3&4

Routine Maintenance Work

1) During the LC period there will be NO supply in 230KV Kodi-1 #,Kodi-2 # and P.Tr-

2,3&4. 2) P.Tr-1 fed from 230KV N.M.Patty # and Ckni #. 3) 230KV Kodi-1 #,Kodi-2 #

Radial from other end. 4) All 33KV feeders to be tied with P.Tr-1.Hence NO Wind

generation affected. 5) Hence NO SS will be affected. 6) Cocurrence obtained from

SE/NCES/TIN.

POSSIBLE Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1

sub to wind gen

and no blocking of

wind gen. and 230

Ckni-Ampm &

Ckni-Nmpt # to be

in tied condition

Approved

440 Erode 230 KV GOBI 230 KV110 KV GOBI FEEDER BREAKER AND CT'S

WITH LINE SWITCH



WORK

SUPPLY TO 110 KV GOBI SS MAY FED FROM 110 KB ANTHIYUR FEEDER BY

CLOSING SERIES SWITCH IN 110 KV GOBI SSpossible Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1

subject to transfer

of loads to

anthiyur feeder

Approved

441 Madurai 110 KV PUGALUR 230 KV110 KV Pugalur - Karur Radial feeder

Breaker, CTs and sec pglr and mnglamMonthly maintenance work., Tree cutting work.

During the LC Period, 110KV Karur SS,is proposed total shutdown. The remaining 110KV

Manmangalam,110KV Veppampalayam SS load will be fed through 110KV

Renganathapuram feeder.Hence there is no supply interruption to any SS.


conditionApproved

442 Madurai 110 KV PUGALUR 230 KV110KV Pugalur - Puliyur Feeder Breaker, CTs

and Line switch onlyMonthly Maintenance Work

During the LC period, 110KV Pulilyur SS availing total shutdown and remaining 110KV

Thanthonimalai SS, Velliyanai SS Mayanur SS, Kaniyalampatty SS and Panjapatty SS

load will be fed from 110KV Trichy SS via 110KV Ayyermalai SS.Hence there is no

interruption to any SS.Concurrence obtained from EE/O/Trichy.


conditionApproved

443 Madurai 230 KV Alagarkoil230kv100MVA AUTO I ,HV&LV breaker CT,LAS

onlyFor monthly maintenance work.

During the L.C period anpother one 100MVA AUTO II will be in serviceAND 2300& 110kv

FEEDERS WILL BE IN GRID further 110KV INDUSTRIAL ESTATE & URANGANPATTY

SS will be under total shudown. further if necessary 110KV ALKL -SMPTY 2 # TIE WILL

OPENED AT ALKL end hence there will be no interruption of supply please.


conditionApproved


KV

On 110KV TTN-Sipcot-II feeder breaker with

CT bus and line side switchesFor monthly maintenance work . No SS will be affected. POSSIBLE Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1 0 Approved


STATION 230 KV

110 KV Kinnimangalam-Theni - I feeder

section between Valanthur to Theni

To replace the flash over disc at loc.no.158,159,160

and tower to tower inspection,tree cutting work in

various location.

During the LC period , 110 KV Kanadamanur SS Load will be transferred to 110 KV

kinnimangalam - Theni -II feeder, Usilampatty 110 KV SS and Mondikundu 110 KV SS

availing total shutdown .Hence there will be no supply interruption at any other SS.



PERIYAKULAM SS AND KODAIKANAL SS

SPUR LINE IN 110KV THENI-SEMPATTY II

#

FOR LINE MONTHLY MAINTENANCE AND

PREMONSOON INSPECTION WORK.PERIYAKULAM SS AND KODAIKANAL SS PROPOSED UNDER TOTAL SHUT DOWN POSSIBLE Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1 0 Approved


110 KV THENI KINNIMANGALAM I FEEDER

SECTINO BETWEEN VALANTHUR AND

THENI.

FOR LINE MONTHLY MAINTENANCE AND

PREMONSOON INSPECTION.

DURING THE LC PERIOD THE FEEDER WILL BE RADIAL FROM KINNIMANGALAM

UPTO VALANTHUR SS. 110 KV MONDIKUNDU,USILAMPATTI SS AVAILING TOTAL

SHUTDOWN.


448 Madurai 110 KVNALLAPPANAYAKANPA

TTY 230 KV

110 KV KODIKURUCHI FEEDER BREAKER

WITH CT ONLYFor monthly maintenance work

110 KV KADAYANALLUR SS AND 11O KV ACHANPUDUR SS WILL BE REDIALLY FED

FROM 230 KV KODIKURUCHI SSPOSSIBLE Tue, 11-Apr-2017 10:00 Tue, 11-Apr-2017 14:00 1 0 Approved

449 Madurai 230 KV KAVANOOR 230 KV 230 KV KAVANOOR-VALUTHUR #MONTHLY MAINTENANCE WORKS AND LINE

MAINTENANCE WORKSSINCE BOTH ENDS LC TO BE AVAILED NO SUPPLY IN THE FEEDER POSSIBLE Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1 0 Approved


KV

230KV Deviakurichy feeder CB, CTs, CVTs,

Wave Traps and 230KV Swithces.230KV Bus-

A side Switch of Deviakurichy feeder.

For regular maintenance works.

During LC period230KV Bus-A now idly charged through Bus Coupler CB & CTs will be

hand Tripped.230KV Unjanai and Pugalur feeders will be kept tied with grid.No supply

interruption.


230 kv taqa to

dvki feeder to be

in tied condition

Approved

451 Madurai 110 KV KARAIKUDI 230 KVOn 110KV KKDI - VLDR #'r S/B A.Pudur and

Tvdi.Flashed over Disc replacement work.

During the Lc Period the #'r will be tied with Grid through 110KV DVKT #'r. Hence there

will be No interruption of Supply.POSSIBLE Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1 0 Approved

452 Madurai 110 KV kinnimangalam 230 KV110KV KNMLM - THENI 1 section between

valanthur and theniLine maintenance work

The feeder will be radial from KNMLM upto valanthur SS. 110KV Mondikundu,usilampatti

SS availing total shutdownPOSSIBLE Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1 repeat Approved

453 Madurai 110 KV KADALANGUDI 230 KV110KV Kadalangudy- Mayiladuthurai feeder

entire


2)Maintenance work

No interruption to any SS. 110KV Mayiladuthurai SS proposed to shutdown. All other

feeders will be in tied condition at KGTPS plant and Kadalangudy SS.POSSIBLE Tue, 11-Apr-2017 10:00 Tue, 11-Apr-2017 16:00 1 0 Approved


KV

Auto Transformer -II-HV and LV side.Its

entire Transformer ,LAS,CT's,Breakers

&switches and 230KV Bus I

Monthly Maintenance and Rectify the defect in Bus I

IsolatorAuto I Transformer will be manage the load possible Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1

subject to the

other auto tr

loading limit

Approved

455 Madurai 230 KV TRICHY 230 KV100MVA Auto Transformer I, LV I BR, HV &

LV LAS, LV CTs and Isolators.0

During the LC period a) other 2 nos. 100MVA Auto Transformer will be in service. b)

There will be no interruption of supply to any of the SS and feeders. C) Necessary

concurrence obtained from SE/O/Trichy.


456 Erode 110 KV METTUR DPH 110 KV AUTO SS FEEDER 2 MONTHLY MAINTENANCE WORKS THE OTHER END WILL BE IN SERVICE. possible Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 15:00 1

subject to the

other feeder

loading limit

Approved


230 KV

110 KV OKM-R.S.Puram I Feeder (Breaker,

CT's & Line Switch)

for annual relay testing work by GRT wing and


During the LC period, 110 KV OKM-R.S.Puram I feeder loads will be transferred to 110KV

OKM-R.S.Puram II feeder. Hence, No SS will be affected.possible Tue, 11-Apr-2017 0:00 Tue, 11-Apr-2017 0:00 1

subject to transfer

of loads to feeder

2

Approved


230 KV

110 KV OKM-R.S.Puram I Feeder (Breaker,

CT's & Line Switch)



During the LC period, 110 KV OKM-R.S.Puram I feeder loads will be transferred to 110KV

OKM-R.S.Puram II feeder. Hence, No SS will be affected.0 Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 14:00 1 repeat of 52988 Not considered

459 Madurai 110 KV SEMBATTY 230 KV110V SBT - THENI I # Bkr, CTs and sec. bet.

SBT and Ayyampalayam SS1. Monthly maintenance work2. Tree cutting work

During the LC period, the feeder will be radial from other end upto Ayyampalayam SS.

Hence no interruption to any SS.POSSIBLE Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1 0 Approved

460 Erode 230 KV Udumalpet 400 KV230 KV MYVADI - UDUMALPET LINK - 1

FEEDER BREAKER, CT AND LINE ENTIREMONTHLY MAINTENANCE WORK BOTH END AVAIL LC possible Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1

subject to the

other link feeder

loading limit

Approved

461 Erode 230 KV DEVIAKURICHI 230 KVBreaker, CTs, and Line side isolator both end

For Monthly Maintenance work 230 KV Deviakurichy- STCMS & Singapuram Feeders will be in service possible Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1

230 kv taqa to

dvki feeder to be

in tied condition

Approved

462 Chennai 110 KV ARNI 230 KV110 KV Arani Kaveripakkam Feeder Breaker,

110KV CTs, Line Isolator

For Monthly Maintenance work, CT Clamp, and Bolt

Nuts replacement work.

During the Period of Shut down the 110KV Thimiri SS availing Total Shut down.Hence

there will be no interruption of Supply.Possible Tue, 11-Apr-2017 09:00 Tue, 11-Apr-2017 14:00 1 approved Approved

463 Chennai 110 KV KORATTUR 230 KV 110 KV Avadi-SPR feeder Jumper tightness at various location All other feeder will be in services Pending Tue, 11-Apr-2017 09:00 Tue, 11-Apr-2017 17:00 1 Approved

464 Chennai 230 KV SPKoil 230 KV Kalapakkam feeder 2 Quartely Maintenance Work Pending Tue, 11-Apr-2017 09:00 Tue, 11-Apr-2017 17:00 1 Approved

465 Madurai 230 KV KADALANGUDI 230 KV230/110KV Auto Transformer I, HV-I; LV-I

and 230KV & 110KV LAS.

1)Monthly maintenance work 2)Transformer

Differential Protection relay fixing work.

No interruption to any SS. The 230KV PPN- Thiruvarur feeder will be in tied condition.

The 110KV Jayankondam and Papakudy SS loads transferred to Neively TS I.

NOT

POSSIBLETue, 11-Apr-2017 10:00 Tue, 11-Apr-2017 16:00 1

programmed

along with total

s/d

Not approved

466 Madurai 400 KV kamuthi 400 KV Kanarpatty 400/230 KV ICT -II MONTHLY MAINTENANCE WORK NO FEEDER IS IN SERVICE 230 KV AND NO EQUIPMENT AFFECTED POSSIBLE Tue, 11-Apr-2017 10:00 Tue, 11-Apr-2017 17:00 1App in 129

occ/146Approved

467 Erode 230 KV UDUMALPET 230 KV230KV MYVADI LINK I FEEDER BREAKER

&LINE ENTIREFOR MONTHLY MAINTENANCE WORKS

DURING THE LC PERIOD 230KV MYVADY LINK II FEEDER WILL CATER THE 230 KV

MYVADY LINK I FEEDERpossible Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1

subject to the

other link feeder

loading limit

Approved

468 Erode 110 KV Udumalpet 110 KVline. between Udt and Devanoorputhur SS


other end.possible Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1

subject to

devanurputhuir ss

being fed from

aliyar ss

Approved

469 Erode 110 KV PONNAPURAM 230 KV110 KV Ponnapuram # Breaker & CTs & Line

entireFOR MONTHLY MAINTENANCE WORKS

1. THE 110KV PONNAPURAM SS FEEDING WILL BE CHANGED TO 110KV PNPM-

INGUR-II #2.HENCE NO SS WILL BE AFFECTED.possible Tue, 11-Apr-2017 10:00 Tue, 11-Apr-2017 17:00 1

subject to transfer

of ponnapuram ss

loads to ingur

feeder 2

Approved

470 Erode 110 KV SINGARAPET 230 KV110 KV Ramiyanahalli # Breaker, CTs & line

isolators



During the shutdown period,1) 110 KV Ramiyanahalli SS programmed to avail total

shutdown 2) 110 KV Harur SS and 110 KV Pappireddipatti SS loads will be fed from 230

KV SS Karimangalam through 110 KV Karimangalam - Ramiyanahalli #hence no

interruption of supply.


subject to

ramiyanahalli ss

availing tsd

Approved

471 Erode 230 KV SINGARAPET 230 KV Auto transformer II & LV II BreakerTo carry monthly maintenance work by


During the period of LC, 1) Auto transformer II and LV II breaker will be in off condition 3)

The Auto transformer I and III will be in service,4) 110 KV Ramiyanahally SS total

shutdown approved and 110KV Harur SS & Pappireddipatty SS loads will be fed from

Karimangalam SS.5). The 110KV Tirupattur, Link I and Link II feeders will be in

servicehence no interruption of supply


subject to the

other auto trs

loading limit

Approved

472 Madurai 230 KV SAMAYAPURAM 230 KV 230KV Bus Coupler Breaker & isolotors (idle) Monthly Maintenance Work No Interruption POSSIBLE Tue, 11-Apr-2017 10:00 Tue, 11-Apr-2017 17:00 1 0 Approved

473 Madurai 230 KV SANKANERI 230 KV230/110KV AutoTransformer-I HV&LV

Breaker CTS&Lineswitches.

For monthly maintenance purpose & GRT Annual

Relay Testing purpose.

During the LC Period AutoTransformer-I willnot beinservice.AutoTransformer-II willbe

Carriedout the Entire Load.POSSIBLE Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 14:00 1 0 Approved

474 Erode 230 KV ARASUR 230 KV230/110 KV Autotransformer - III, HV-III, LV-

For Monthly maintenance work.During the Line Clear period,1)110 KV Somanur SS and 110 KV Ichipatty SS under total

Shut down.2)The remaining loads will be managed by three numbers auto transformers.possible Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 16:00 1

subject to the

other auto trs

loading limit

Approved

475 Erode 110 KV ARASUR 230 KVand Its CTs

For Monthly maintenance work. During the Line Clear period,110 KV Somanur SS under total Shut down. possible Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 12:00 1

subject to

somanur ss

availing tsd

Approved

476 Madurai 230 KV ALUNDUR 230 KV230KV Alundur - Thanjavur-I Feeder Breaker,

CT's, CVT's and Line Isolators.

a)Monthly Preventive Maintenance work.

b)Premonsoon Inspection and tree cutting work.

c)Relay Testing Work.

During the LC period, a)Other end also avail shutdown. b)All other 230 KV feeders will be

in service. c)There will be no interruption of supply to any other feeders.

NOT


Along with total

s/dNot Approved

477 Madurai 230 KV kayathar230kv

400KV Kamudhi feeder Main Breaker (409-

52), Reactor Breaker (409-52R), Reactor &

CT only

Monthly Maintenance workDuring the LC period there will be no supply in 400KV Kamudhi feeder Main Breaker (409-

52), Reactor Breaker (409-52R), Reactor & CT only.hence no substation affected.POSSIBLE Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1

App in 129

occ/147Approved

478 Erode 110 KV INGUR 230 KVand earth switch

MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 14:00 1subject to the load


479 Madurai 110 KV kamuthi 400 KV 110 kv Manur # Breaker and ct only monthly maintenance work 110 kv manur ss monthly shutdown alerady proposed on this date no ss affected Possible Tue, 11-Apr-2017 10:00 Tue, 11-Apr-2017 17:00 1SLDC selection

not in orderApproved

480 Chennai 110 KV MANALI 230 KV 110kvBus Section-1


110kv Bus Coupler-1 switch in 110kv Bus Section-

1b.Routine Maintenance works

a.110kv Bus Section-2&3 will be in service and 110kv supply to M/s MPL will not be

available

Possible with

EHT

concurrence

Tue, 11-Apr-2017 10:00 Tue, 11-Apr-2017 17:00 1

Can be availed in

1st week so as to

have import in

ETPS1

Approved

481 Madurai 230 KV THANJAVUR 230 KV230 KV Thanjavur - Alundur-1 feeder,

breaker, CT & LI.

1) For monthly maintenance works by the

AEE/Mtce/Thanjavur,2) For carrying out premonsoon

inspection works by the AEE/Lines/Thanjavur.

During the LC period,1) other end also will avail LC on the same day,2) all other 230 KV

feeders will be in tied condition,3) no supply interruption to any SS.

NOT


programmed

along with total

s/d

Subject to EE/SLDC/

Madurai approval


230 KV

110KV PATTUKKOTTAI-MADUKKUR

FEEDER (VIA: 110/11KV PATTUKKOTTAI

URBAN SS), LINE PORTION BETWEEN

110KV PATTUKKOTTAI URBAN SS TO

110KV MADUKKUR SS.



1) 110KV LINE ISOLATOR (NO.2) TOWARDS PATTUKKOTTAI ALREADY OPENED AT

110 KV MADUKKUR SS.2) NO INTERRUPTION TO ANY SUBSTATION.POSSIBLE Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1 0 Approved

483 Erode 230 KV SALEM AUTO 230 KV230KV Deviakurichi-Pudhanchandai Entire

FeederRoad & Railway crossing jumpers checking.

1)230KV Deviakurichi-Pudhanchandai Feeder breaker & CT's Maintenance availing Both

SS. 2)230KV Deviakurichi-Pudhanchandai Feeder series switch Both side will be Kept

Opened.3)There will be no interruption of supply to any SS.


230 kv taqa to

dvki feeder to be

in tied condition

Approved

484 Madurai 230 KV PERAMBALUR 230 KV230KV Perambalur-TAQA feeder breaker

CT's wave trap & Line Isolater.For monthly maintenance work

During the above period of shut down 1) 230KV Perambalur SS will be radially fed from

230KV Trichy SS

NOT


Due Aldr ICT

loading

Subject to EE/SLDC/

Madurai approval

485 Chennai 230 KV ATHIPET 230 KV 230KV Bus-II & Bus coupler switch. Routine Maintenance work 1. Bus-I will be in service2. All other feeders will be in service. Possible Tue, 11-Apr-2017 11:00 Tue, 11-Apr-2017 17:00 1 approved Approved

486 Erode

GENERATI

NG

STATIONS

KUNDAH PH2

UNIT-III GENERATTOR SF6 BREAKER,


ACCESSIORIES

FOR MONTHLY MAINTENANCE WORK SF6 BREAKER OFF IN CONDITION TOP AND BOTTOM BUS OPEN IN CONDITION Possible Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1SLDC selection

not in orderApproved

487 Erode 110 KV METTUR AUTO 230 KV 110KV Malco II Feeder For Monthly maintenance work During the LC period 110KV Malco I & III Feeder will be in service possible Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1other two feeders


488 Erode 110 KV HOSUR 230 KV 110 KV Guruparapalli Breaker&entire line. 1.For monthly maintenance work.

During the above LC Period there will be no interruption,since the line has been kept ideal

charge condition. The concurrence of the Superintending Engineer/KEDC/Krishnagiri ,

Superintending Engineer/Operation/Thiruvalam , and Chief Engineer/Distribution/Vellore

has been obtained.

possible Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 14:00 1 idly charged Approved

489 Erode 230 KV THUDIALUR 230 KV230/110KV, 100MVA Auto Transformer III,

HV-III, LV-IIIFor monthly mtce works Auto Trnaformer I & II will be in service possible Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 17:00 1

subject to the

other auto trs

loading limit

Approved

490 Erode 110 KV HOSUR 230 KV110KV Hosur -Gurubarapally feeder(Both

Circuit I & II)

1For monthly line maintenanance work, 2)Both

circuit I & II

During the above LC Perid there will be no interruption ,since the line has been kept in

ideal charge conditon.The concurrence of CE/D/Vellore ,SE/O/TvLM,SE/KEDC/Krishnagiri

has been obtained

0 Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 14:00 1 repeat of 53662 Not considered

491 Chennai 110 KV CUDDALORE 230 KV 110 KV Main strung Bus section (South side )

GCC/Trichy wing work KfW fund Augmentation

Replacing the Existing Twin Kunda strung bus by

Twin MOOSE in 110 KV Main strung Bus section

(South side ) Capacitor bank side

Durind the period of LC The 110 KV Semmankuppam SS,110 KV BMutlur SS,110 KV

Chidambaram SS,110 KV Panruti rural SS and chiththarasurSS will be availing total

opened at cuddalore end. The Chemplast EHT loads only fed from 110 KV Lanco IPP.

Nallaththur and sornavur load will be transferred to 110 KV Neyveli paruti radial feeder

Auto transformers II will be in service.Hence NO Interruption of SupplyConcurrence

obtained from SE/O/Villupuram

Possible Tue, 11-Apr-2017 09:00 Tue, 11-Apr-2017 17:00 1 approved Approved

492 Chennai 230 KV CUDDALORE 230 KV

transformer -III Breaker with CT's one by one.

For monthly maintenance works

The 110 KV Semmankuppam SS,110 KV BMutlur SS,110 KV Chidambaram SS,110 KV

Panruti rural SS and chiththarasurSS will be availing total shutdown.( load relief for the

Chemplast EHT loads only fed from 110 KV Lanco IPP. Nallaththur and sornavur load will

be transferred to 110 KV Neyveli paruti radial feeder Auto transformers II will be in

service.Hence NO Interruption of SupplyConcurrence obtained from

SE/O/Villupuramuramneer / Shift / Cuddalore


493 Chennai 110 KV THIRUVALAM 230 KV 110 KV Arani - Kaveripakkam feeder entire.For attending arcing horn tightness checking work &

EHT Line Maintenance Works.

During the period of LCi. 110 KV Arani - Kaveripakkam line LC in between from 110 KV

Timiri SS to 110 KV Kaveripakam SS.ii. 110 KV Timiri SS is availing total

Shutdown.Hence there will be no interruption of supply please.


494 Chennai 110 KV MOSUR 230 KV110 KV Mosur-Denny Feeder BREAKER &

CT,SFor attending monthly maintanance work IDLY Charged feeder Possible Tue, 11-Apr-2017 09:00 Tue, 11-Apr-2017 14:00 1 0 Approved


KV

a)110 KV APKM - Rajapalayam I feeder

section between 110 KV Alangulam SS to

110 KV Rajapalayam SS. b) 110 KV APKM -

Rajapalayam II feeder section between 110

KV Reddiapatti SS & 110 KV Rajapalayam

SS.

a) & b) Earth wire cut rectification work at Loc. No.

95 to 98

During the LC period, a) section between Alangulam to Rajapalayam SS in RJPM-I feeder

will be no supply. B) 110 KV Reddiapatty SS to Rajapalayam SS in RJPM-II feeder will be

no supply.Hence No SS affected.


496 Chennai 230 KV VILLUPURAM 230 KV100MVA Auto Transformer I & 110KV

Southern BusFor monthly maintenance works Auto T/R-II will be in service Possible Tue, 11-Apr-2017 09:00 Tue, 11-Apr-2017 17:00 1 0 Approved

497 Chennai 110 KV VILLUPURAM 230 KV 110KV VPM-T.V.Nallur # For monthly maintenance work.For replacement of Insulators loc no.210.and for tightening of jumpers between

Villupuram to T.V.Nallur in the Line.(T.V.Nallur SS availing total shutdownPossible Tue, 11-Apr-2017 09:00 Tue, 11-Apr-2017 17:00 1 0 Approved


KV

230KV Shoolagiri Feeder Breaker, 110KV

Hosur feeder Breaker

Monthly maintenance works in 230KV Shoolagiri

feeder breaker and 110KV Hosur feeder breaker

230KV Shoolagiri and 110KV Hosur feeder breakers will be hand tripped. Bus side & Line

side isolators of 230KV Shoolagiri & 110KV Hosur will be opened as per instruction of

CE/D/Vellore with concurrence of SE/O/Thiruvalam & SE/KEDC/Krishnagiri.

1 & 2 possible Tue, 11-Apr-2017 9:00 Tue, 11-Apr-2017 14:00 1

1. occ approved;

2. subject to the

tsd being realized

Possible

499 Chennai 230 KV Orgadam 230 kV 230KV Sriperumbudur# MONTHLY MAINTENANCE WORK Possible Tue, 11-Apr-2017 09:00 Tue, 11-Apr-2017 17:00 1 0 Approved


1)110 KV Pasumalai -( Tirumangalam) -

Kinnimangalam 3 # BKR & CT,LI only. 2)Line

LC in section between Pasumalai and

Kappalur SS.

1) Maintenance Works of BKR & CT, LI only. .1) Feeder will be kept radial from Kinnimangalam upto Kapplur SS Line links feeding

Tirumangalam and .Kapplur SS 2) Hence No interruption of Supply to any SS0 Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 14:00 1 Approved

501 Erode 110 KV LOWER METTUR 1110 kv BPH - I to BPH - II Feeder, Line side

isolator and Earth switch

Monthly maintenance works in Feeder equipment

and its isolator and Earth switch

(a) During the L.C period Unit - 1 or Unit - 2 any one unit will be inservice, other unit will

be standby condition.(b) The other end BPH - 2 applied L.C on that day on 12.04.2017(c)

110 kv BPH - 1 to DPH Feeder will be inservice.

possible Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 16:00 1subject to the load


502 Chennai 230 KV VEERAPURAM 230 KV 230 KV Veerapuram Kalivanthapattu feeder Quarterly Maintenance(OCC APPROVED)1.230 KV Veerapuram - S.P.KOIL Feeder will be in service2.110 KV Veerapuram -

S.P.KOIL Feeder I&II kept tied conditionapproved Wed, 12-Apr-2017 09:00 Wed, 12-Apr-2017 14:00 1 0 Approved

503 Chennai 400 KV Alamathy 400 KV 400 KV SVC I & II TIE BREAKER ONLY For Tandelta of CT and isolator allignment work. 400 KV SVC I&II feeders will be in service via main circuit breakers.Hence no interuption.Possible OCC


504 Erode 230 KV MTPS MTPS-I to Salem 230KV Feeder Monthly maintenance work Programmed LC possible Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1subject to the load


505 Madurai 230 KV KAYATHAR 230 KVOn 230KV Kayathar - Abishegapatti feeder

breaker with CT & entire line.

a) For monthly maintenance work. b) Tower to tower

inspection.During the LC period, there will be no supply in the entire feeder. Hence no SS affected. POSSIBLE Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1

App in 129

occ/128Approved


AUTO II, HV II, LV II AND 110 KV

ADHANAKKOTTAI FEEDER LINE PORTION

BETWEEN 230 KV SS AND MALAIYUR SS

AUTO II,HV II,LV II,BREAKER, ISOLATORS AND

EHT LINES MAINTENANCE AND GRT TESTING

WORKS

110 KV ADHANAKKOTTAI SS, 110 KV GANDARVAKOTTAI SS, AND 110 KV

MALAIYUR SS IN 110 KV ADHANAKKOTTAI FEEDER AVAILING TOTAL SHUT DOWN.

110 KV ALIYANILAI SS IN 110 KV ALANGUDY EID PARRY FEEDER AVAILING TOTAL

SHUT DOWN. 110 KV SIPCOT SS AND 110 KV KONNAIYUR SS IN 110 KV SIPCOT

FEEDER ALSO AVAILING TOTAL SHUT DOWN.110 KV SUPPLY FOR VADAKADU SS

IS TO BE BACK FED THROUGH 110 KV ALANGUDY EID PARRY FEEDER AND

HENCE THERE WILL BE NO INTERUPTION OF SUPPLY TO ANY SS.

POSSIBLE Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1 Sub to Total s/d Approved


KV315 MVA,400/230KV,Auto Transformer-2 Monthly maintenance work

During the LC Period 315MVA 400/230KV Auto Transformer-2 in OFF Condition and Auto

Transformer 1 will cater the load of Auto Transformer -2.

Possible OCC


508 Erode 110 KV Erode 110 KV110 KV ERODE - SWTP FEEDER BREAKER

,CT AND LINE SIDE.

MONTHLY MAINTENANCE WORK AND

RELEASING OF HANGING TYPE Wave trap

DURING LC PERIOD 110 KV SURIYAMPALAYAM 110/22 KV SS UNDER TOTAL

SHUTDOWN. NECESSARY CONCURENCE OBTAINED FROM SE/EEDC/ERODE.possible Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 15:00 1

subject to

suriyampalayam

ss availing tsd

Approved

509 Madurai 110 KV PERIYAR

110KV PRIYAR-K.G.PATTY FEEDER

BREAKER WITH CT AND LINE SIDE AB

SWITCHES

ANNUAL MAINTENANCE WORK

DURING THE LC PERIOD 110 KV PERIYAR-KG PAATY FEEDER RADIAL FROM

KAYATHAR END UPTO KG PATTY SS. IN KG PATTY SS 110KV AB SWITCH

TOWARDS PERIYAR KEPT OPENED. HENCE NO SS WILL BE AFFECTED.


conditionApproved

510 Madurai 230 KV SRPUDUR 230 KVOn 100 MVA Auto Tr II, LV II, HV II breaker &

CT only.Monthly Maintenance work. During the LC period Auto Tr I & III will be in service. POSSIBLE Wed, 12-Apr-2017 10:00 Wed, 12-Apr-2017 14:00 1 Sub to wind gen Approved


1) on 110KV Kodikurichi-Veerasigamani-II #

section between Puliyangudi SS- 110KV

Narayanapuram SS 2) On 110KV Kodikurichi

-Kadayanallur - Nallamanayakan patti (DC

Line) feeder section between 110KV

Kadayanallur SS - 110 KV

Nallamanayakanpatti SS.

1)For replacement of defective insulator at location

No:51 .2) For Replacement of defective Insulator at

location no9,22, 23,&46 (NAR-VISW) Location

No.25,35,36 &43 (KDNR-PULI)

During LC period, i) 110KV Veerasigamani SS and 110 KV Puliangudi SS will be fed from

110KV -Kodikurichi- Veerasigamani -1 # by closing AB Switch towards Veerasigamani at

Echantha SS end. ii)110 KV Naranapuram SS and Visvanathaperi SS will be fed from

110 Nallmanaickenpatty SS by closing the isolator at Nallamanaickenpatty SS end .

iii)110KV Achanpudur SS and Kadayanallur SS will be radially fed from 230KV

Kodikurichi SS. Hence, no SS will be affected.

POSSIBLE Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1 Sub to wind gen Approved

512 Erode 230 KV GOBI 230 KV230 KV PALLAKAPALAYAM FEEDER

BREAKER AND CT'S WITH LINE SWITCH



WORK

230 KV ARASUR FEEDER,230 KV ANTHIYUR FEEDER AND 230 KV MTPS II FEEDER

ARE IN SERVICE,IT MAY CATER THE LOAD,OTHER END MAY ALSO AVAIL LC.possible Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1

subject to the load


513 Madurai 110 KV PUGALUR 230 KV

110KV Pugalur - Renganathapuram feeder

Breaker, CTs & line switch and entire line

only


During the LC period,the 110KV Malaikovilur and 110KV Pallapatty are proposed total

shutdown,the remaining 110KV AC Playam,110KV Thalapatty ss load fed from 230KV

Rengnathapuram SS. there will be no supply interruption in any 110KV SS. Concurrance

obtained from EE/O/Renganathapuram.


514 Madurai 110 KV PUGALUR 230 KV110KV Pugalur-Link feeder Breaker,CTs,Line

switch and line entire onlyFor Monthly maintenance work .

During the L.C period, 110 KV Pugalur SS proposing total shut down and concurrence

was obtained from EHT consumer M/s. EID Parry/PugalurPOSSIBLE Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1 0 Approved


STATION 230 KV230KV CKNI-Kinnimangalam Feeder Entire


Maintenance worksDuring the LC period, there will be no supply in the entire feeder POSSIBLE Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1 0 Approved

516 Madurai 230 KV then I 230 KV230 KV THENI-SEMPATTY # BREAKER CT

AND ENTIRE LINE.

FOR MONTHLY MAINTENANCE AND

PREMONSOON INSPECTION WORK.NO SUPPLY CONDITION.(OTHER END LC) POSSIBLE Wed, 12-Apr-2017 0:00 Wed, 12-Apr-2017 0:00 1 0 Approved

517 Madurai 230 KV kinnimangalam 230 KV 230kv KNMLM - CKNI I # Maintenance works of Breaker and CT There will be no supply in the entire feeder POSSIBLE Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 13:00 1 0 Approved


KV110KV Bus Coupler CB and CTs. For regular maintenance works.

During LC period110KV West and East Bus feeders will be fed by Auto-I and Auto-II

respectively separately.No supply interruption.possible Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 15:00 1

subject to equal

division of loads

only

Approved


KV

230KV Gobi Feeder CT,Breaker and

SwitchesMonthly Maintenance Both end LC avail on that day possible Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1

subject to the load



1)110 KV Pasumalai -( Tirumangalam) -

Kinnimangalam 3 # BKR & CT,LI only. 2)Line

LC in section between Pasumalai and

Kappalur SS.

1) Maintenance Works of BKR & CT, LI only. 2)Tree

clearance works .

1) Feeder will be kept radial from Kinnimangalam upto Kapplur SS Line links feeding

Tirumangalam and .Kapplur SS 2) Hence No interruption of Supply to any SS3) Kappalur

SS will be under shut down



230 KV

1)230/110KV Auto Transformer-

II(100MVA)HV,LV Br,& CT's2)110KV RNPM -

SBT II # Br,CT's

1) & 2) monthly Maintenance works

1)During LC period 230/110KV Auto Transformer I (100MVA)will be in service and cater

station load.2)110KV RNPM-SBT II# will be radial from SBT End.Intermediate SS 110KV

vadamadurai SS avail total shutdown.3)110KV RNPM-UDPT # will be radial from UDPT

end. Intermediate SS 110KV Kallimandhayam SS avail total shutdown.

POSSIBLE Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 16:00 1

Sub to load

condition and

concurrence for

UDPT for load

transfer

Approved

522 Erode 230 KV MTPSII 230KV METTUR AUTO FEEDER GENERAL MAINTENANCE WORKS .

UNIT IN SERVICE. ALL 400KV FEEDERS KARAMADAI-I&II ,PALAVADI-I&II AND ICT-

I&II ARE IN SERVICE. ALL 230KV FEEDERS GOBI,MTPS-I AND STANDBY



feeder load 130

mw and the other

feeders would

overload

Subject to

EE/SLDC/Erode

approval

523 Chennai 230 KV CMRL 230 KV Auto Transformer II Monthly maintenance

230KV GIS Koyambedu SS (CMRL)100MVA Auto Transformer - IIon 12.04.2017 between

10.00Hrs and 16.00 HrsAEE/Mtc for monthly maintenance workApproved by

SE/O/North/ChennaiNo load transfer required and no interruption to the consumer.Auto

Transformer - I will be in service.

approved Wed, 12-Apr-2017 10:00 Wed, 12-Apr-2017 16:00 1 0 Approved


100MVA Auto Transformer II, HV II & LV II

BRs, HV II & LV II and their LAS,CTs and

isolators.

0




POSSIBLE Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1Sub to load

condiitonApproved

525 Madurai 230 KV THIRUVARUR 230 KV230KV Thiruvarur - Nemmeli Thippiyakudy

Feeder

Line Premansoon Inspection and Rectification work,

Breaker, CT's and Isolator maintenance work

During the LC period all other 230KV feeders are in tied condition. Hence there will be no

interruption of supply to any other Substation.POSSIBLE Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1 0 Approved

526 Madurai 230 KV KARAIKUDI 230 KV On 230KV PGCIL # 1 Bkr & Ct's For Monthly Mtc work.During the L.C Period the all other 230KV #'rs tied with Grid. Hence there will be No

interruption of Supply.POSSIBLE Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1

App in 129

occ/132Approved

527 Madurai 110 KV SEMBATTY 230 KV110KV SBT - RNPM II # Sec.

bet.Gandhigramam SS and 230KV RNPM SSTree cutting work

During the LC period Vadamadurai SS is availing total shutdown, Angunagar SS will be

transferred to Aundur # And the feeder will be radial from SBT upto Gandhigramam SS.

Hence no interruption to any SS.


528 Erode 110 KV DEVIAKURICHI 230 KV110 KV Capacitor bank I Breaker CTs,

Capacitor side Isolator, LASFor Monthly Maintenance work Capacitor Bank II will be in service approved Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1

subject to the

voltage profile in

the grid

Approved


230 KV

On 110 KV Sipcot-TTN # No. II breaker with

CTs and line isolators only.For monthly maintenance works.

Â During the L.C period,the 110KV Sipcot-TTN-II feeder will be in 'OFF' condition at both

ends since there is no intermediate SS and no SS will be affected please.POSSIBLE Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1 0 Approved


110KV Coimbatore-Arasur Feeder Section

between 230KV Coimbatore SS and 110KV

Kallimadai SS

PMI Works by AE/Lines Coimbatore110KV CBE-Arasur feeder loads(KPR Mill EHT Service, Sulur Traction EHT Service,

110KV Kallimadai SS and 110KV Irugur SS) will be transferred to 230KV Arasur SS.possible Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 16:00 1

subject to transfer

of loads to arasur

ss feed

Approved

531 Erode 230 KV UDUMALPET 230 KV230 KV IDUKKI FEEDER BREAKER & LINE

ENTIREFOR MONTHLY MAINTENANCE WORKS

DURING LC PERIOD THE ABOVE FEEDER LOADS WILL BE CATER IN 230KV Myvadi

I&II FEEDERSpossible Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1

occ approved and

srldc to be

addressed

Approved

532 Erode 110 KV THUDIALUR 230 KV

i)110KV Karamadai Feeder Br & CTs

ii)110KV OKM-I feeder Br & CTs iii)110KV

OKM-II feeder Br & CTs

For Monthly maintenance Work Feeders Will be radial form other end1 2 & 3

possibleWed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1

to be availed one

by one subject to

the load condition

Approved

533 Erode 110 KV SINGARAPET 230 KV110 KV Link I # Breaker and CTs & line

isolators




of supplypossible Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 15:00 1

subject to the

other link feeder

loading limit

Approved



line portion between 110KV Valadi SS and

110KV Thiruvanaikoil SS


During the above period of shut down a) 110KV Valadi SS avial toal shutdown on the

same day. b) 110KV Thennur SS , 110KV Thiruvanaikoil SS will be fed radially from

110KV Trichy Grid SS. c) 110KV Poovalur SS, M/s.Kothari EHT SC will be fed radially

from 230KV Samayapuram Auto SS. d). The line Isolator towards 110KV Valadi SS at

110KV Thirvanaikoil ss will be Kept opend and earth switch closed. e)The line Isolator

towards 110KV Thirvanaikoil ss at 110KV Valadi SS will be Kept opend and earth switch

closed. f) Necessary concurrence has been obtained from M/s.Kothari EHT Service for

switching operation. g)There will be no interuption to any other SS/EHT consumers.


535 Erode 110 KV ARASUR 230 KV 110 KV CB-II Breaker,CTs and Cell units. For Monthly maintenance work.During the Line Clear period,remaining two numbers 24 MVAR capacitor bank will be in

service.approved Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 15:00 1

subject to the

voltage profile in

the grid

Approved

536 Madurai 230 KV SRPUDUR 230 KVOn 100 MVA Auto Tr II, LV II, HV II breaker &

CT only.

a.Monthly Maintenance work. B.Annual relay testing

workDuring the LC period Auto Tr I & III will be in service. POSSIBLE Wed, 12-Apr-2017 10:00 Wed, 12-Apr-2017 15:00 1 0 Approved

537 Erode 110 KV Singarapet 110 KV110 KV LINK # I, SF6 Bkr, CTs & Line

Isolator.Monthly maintenance work



subject to the

other link feeder

loading limit

Approved

538 Erode 230 KV SALEM AUTO 230 KVIsolator.

Monthly maintenance work.230KV MTPS feeder LC will be availed at both ends. 3 Nos. 230 KV feeders will be in

service. There will be no interruption to any sub station or feeders.possible Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1

subject to the load



KV230KV Suriyadev feeder bay

Monthly maintenance work CT clamp and bolt nuts

replacement work

concurance to be obtained from m/S. Suriyadev during the period of LC, the generated

load of M/s. Suriyadev fed to Sriperambadur 400KV SS through 230KV LILO switch yardPending Wed, 12-Apr-2017 10:00 Wed, 12-Apr-2017 17:00 1

Subject to

Suryadev

concurrence

Approved


KV

1.110 KV Ramiyanahally feeder breaker,CTs,

Line switch and Line Between 230 KV

Karimangalam SS - 110 KV Ramiyanahalli

SS

Carryout Monthly Maintenance works by

Maintenance wing and Lines wing Neem Tree

Cutting work at Loc 56-57 , Earth Bond Open at Loc

No:82, Coconut Tree leaf Cutting work at Loc No:

89,113-114 in line between 230 KV Karimangalam

SS - 110 KV Ramiyanahalli SS.

It is Tie feeder hence there is no interruption of power supply. possible Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 14:00 1

subject to the

feeder being kept

radial from

singarapet ss end

Approved

541 Erode 400 KV karamadai230KV 400KV Bus section B1For alignment of Bus earth switch works by L&T

company.

Main breakers of bay 401,404,407 & 410 will be in hand tripped condition and 400KV

MTPS I & II and PGCIL I & II feeders fed thro' Tie breakers and also ICT 1,2& 3 will be in

service.

possible Wed, 12-Apr-2017 10:00 Wed, 12-Apr-2017 17:00 1 occ approved Approved

542 Erode 230 KV SALEM AUTO 230 KV 230KV Salem - MTPS feeder entire. Road crossing jumpers checking.

1) 230KV Salem - MTPS feeder breakers kept hand tripped at Salem 230KV SS and

Mettur 230KV SS.2) There will be no supply in 230KV Salem - MTPS feeder entire.3)

Salem 230KV SS and Mettur 230KV SS are availing breaker and line switch LC on that

day.4) There will be no interruption of supply to any SS.



543 Madurai 110 KV THANJAVUR 230 KV110 KV Thanjavur - NTKudi feeder breaker,

CT and LI.


AEE/Mtce/230 KV SS/Thanjavur.

During the LC period,1) This feeder will be radial from NTKudi 230 KV SS upto 110 KV

Thirukkanurpatti SS, 2) 110 KV Thirukkanurpatti SS will avail shutdown on the same

day,3) all other 110 KV feeders will be in tied condition,4) no supply interruption to any

SS.

POSSIBLE Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1Sub to NT Kudi

Auto LoadingApproved


230 KV

A)230KV NEMMELI THIPPIYAKUDI-

THIRUVARUR FEEDER BREAKER, CT's

AND LINE ISOLATOR. B)230KV NEMMELI

THIPPIYAKUDI-THIRUVARUR FEEDER

ENTIRE

A)FOR MONTHLY PREVENTIVE MAINTENANCE

WORK BY AEE/MTC/ NEMMELI

THIPPIYAKUDI.B)FOR PREMONSOON

INSPECTION BY AE/LINES /PATTUKKOTTAI.

1)DURING THE LC PERIOD 230/110KV NEMMELI THIPPIYAKUDI SS RADIALLY FED

FROM 230KV KARAIKUDI SS.2) NO INTERRUPTION TO ANY SS AND ALL OTHER

FEEDERS ARE TIED CONDITION.


545 Erode 110 KV KUNDAH PH2110KV KUNDAH FEEDER NO 1 & 2 ,SF6

BREAKER AND ITS ACCESSIORIESFOR MONTHLY MAINTENANCE WORK SF6 BREAKER OFF IN CONDITION TOP AND BOTTOM BUS OPEN IN CONDITION Pending Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1

May be possible

with Erode LDC

Subject to

EE/SLDC/Erode

approval


KV

230 KV Tiruvannamalai - Villupuram #,

Breaker, CT's and Line IsolatorMonthly maintenance work

During the period of L/C time,1. 230 KV T.V.Malai - Villupuram # will be OFF condition at

both ends,2. Other 2 Nos 230 KV T.V.Malai - Neyveli & Singarapet feeders will be in

service. Hence there is no interruption of supply please.

approved Wed, 12-Apr-2017 09:00 Wed, 12-Apr-2017 15:00 1 0 Approved

547 Erode 110 KV PYKARA110KV PYKARA - MOYAR 1# (BREAKER

AND CT)FOR MONTHLY MAINTENANCE WORK NIL possible Wed, 12-Apr-2017 8:00 Wed, 12-Apr-2017 17:00 1

feeder 2 will be in

serviceApproved

548 Chennai 110 KV CUDDALORE 230 KV 110 KV Main strung Bus section (South side )

GCC/Trichy wing work for KfW Fund Augmentation

Replace of Existing Twin Kunda strung bus by Twin

MOOSE in 110 KV Main strung Bus section (South

side ) Capacitor bank side.

During the period of LC 110 KV Sethiathopu ss,110 KV vadakuththu SS,110 KV

kullanchavadi SS,110 KV Naththapattu SS,110 KV M.T.Kuppam SSWill be availing Total

shutdown ( load relief for the bus strengthening work)LANCO feeder tie opened at

via kullanchavadi SS(keezhakuppam , , thoppukollai, kornapathu,semmankuppam ,

B,mutlur ,Chempalst ).110 KV Chidambaram ss will be fed from LANCO IPP Hence NO

Interruption of SupplyConcurrence obtained from SE/O/Villupuram

0 Wed, 12-Apr-2017 09:00 Wed, 12-Apr-2017 17:00 1Already applied on

11.4.2017Approved


110 KV Cuddalore - Kullanchavadi # breaker

Transformer-I breaker with Ct'S one by one.



kullanchavadi SS,110 KV Naththapattu SS,110 KV M.T.Kuppam SSWill be availing Total

shutdown ( load relief for the bus strengthening work)LANCO feeder tie opened at

via kullanchavadi SS(keezhakuppam , , thoppukollai, kornapathu,semmankuppam ,

B,mutlur ,Chempalst ).110 KV Chidambaram ss will be fed from LANCO IPP Hence NO

Interruption of SupplyConcurrence obtained from SE/O/Villupuram

Possible Wed, 12-Apr-2017 09:00 Wed, 12-Apr-2017 17:00 1 approved Approved


110 KV Neyvelim - Vadakuthu feeder section

between Vadakuthu SS and 110 KV

Sethiathoppu SS

For strand cut rectification works in the incoming

dropper Jumper at Vadakuthu SS


M.T.Kuppam SSWill be availing Total shutdown Hence NO Interruption of

SupplyConcurrence obtained from SE/O/Villupuram


551 Chennai 110 KV THIRUVALAM 230 KV 110 KV Railway I & II feeder one by one. For EHT Line Maintenance Works.at both end one by one.Hence there will be no interruption of supply please.



i) On 110KV Railway Feeder-I and 110KV

by one

i)For Monthly Maintenance WorksCondition iii)The 230KV Link-II, 230KV Chittoor interstate feeders,230KV Link-I # and




553 Chennai 110 KV MOSUR 230 KVline Isolators

For attending Monthly Maintenance work.

1). The 110KV Salai SS(12MW)Availing Total shutdown work.2). The 110 KV

K.G.Kandigai SS(08MW) Availing Total shutdown work3) 110 KV Itichiputtur SS Availing

total shutdown 4) The concurrence of 110 KV EHT Consumer M/S ultra tech and M/s

MRF ltd may be obtained by AEE/O&M/Salai Hence there will be no interruption of supply

please.


554 Chennai 230 KV MOSUR 230 KV230 KV Mosur - Thiruvalam feeder Breaker,

For attending monthly maintenance worksi). 230 KV Athipattu feeder and 230 KV Alamathy feeder are in service. ii) 110 KV Feeders

all are in service. iii). Hence there will no interruption of supply please.Possible Wed, 12-Apr-2017 09:00 Wed, 12-Apr-2017 17:00 1 approved Approved

555 Erode 110 KV ALIYAR 230 KV110KV ALR-SKPY FEEDER CB,CT& LINE

ENTIRE

PMI Work by JE/Lines/Pollachi and Quarterly Mtce

workSarkarpathy PH Under shutdown condition possible Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 16:00 1

sarkarpathy ph

undershut downApproved



For providing of dropper jumper in 230KV

Anuppankulam - Kayathar feeder Bus Bar to 230KV

strung Bus and line switch to terminal tower. (

Augmentation of 100MVA to 160MVA Auto

Transformer work)

During the LC period,Auto transformer - I,HV-I,LV-I in tripped condition.230KV

Anuppankulam-Kayathar feeder and 230KV Anuppankulam-Madurai feeder will be under

total shutdown.Auto Transformer-II & III will be fed from 230KV Anuppankulam-Sterlite

feeder only.


557 Chennai 230 KV VILLUPURAM 230 KV 230KV Thiruvannamalai # For monthly maintenance works. Both end breaker hand Trip. For tightening of jumpers at various location in the Line Possible Wed, 12-Apr-2017 09:00 Wed, 12-Apr-2017 17:00 1 0 Approved

558 Erode 110 KV LOWER METTUR 2

110 kV LMBPH - 1 feeder equipment linde

side isolator and earth switch at LMBPH -2 /

Nerinjipettai

To carry out monthly maintenance work at 110 kV

LMBPH - 1 feeder equipment line side isolator and

earth switch at LMBPH -2 / Nerinjipettai

(i) During the above LC period Unit 1 & 2 stand by condition depending upon the PWD

demand.(ii) LMBPH - 1 end applied LC on the day(iii) LMBPH - 3 and KR Thoppur feeder

will be in service.



559 Erode 110 KV BKB - 2

110 KV Unjanai,Thiruchencode,BKB-

3,PonniSugars , Vendipalayam feeders & Bus

Section Breakers with isolators

Zone-1 Bus LC for AOH work , TAN Delta

measurement by P&C wing.

Zone 2 ( BKB-1 & SPB feeders ) will be in service . Unit 1 & 2 NSB. Ponnisugar co-

generation stop.postponed Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1

to be scheduled

with tsd in the

individual fed ss

Subject to

EE/SLDC/Erode

approval

560 Chennai 230 KV ACHRAPAKKAM 230 KV 16 MVA PR.TR.II FOR MONTHLY MAINTENANCE WORK 1.16 MVA PR.TR.I&III Will be inservice cater the entire 11kv loadsCBD

ConcurrenceWed, 12-Apr-2017 09:00 Wed, 12-Apr-2017 12:00 1 0

Subject to SE/O

concurrence

561 Erode 230 KV KUNDAH PH3 230KV KPH-3 to Karamadai Feeder

230KV KPH-3 to Karamadai Feeder Tower No:60-72


Maintenance work.

Bus and Line both end open condition Earth switch closed condition. possible Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1subject to the load


562 Chennai 110 KV THARAMANI 230 KV 110 KV Tidel Park -2 feeder Monthly Mtce. work 110 KV Tidel Park-1 feeder will be in service Possible Wed, 12-Apr-2017 09:00 Wed, 12-Apr-2017 17:00 1 0 Approved

563 Chennai 230 KV MYLAPORE 230 KV 100 MVA 230/110 KV Auto Tr.-1 Monthly Mtce. work 100 MVA 230/110 KV AUTO TR.-2 Will be in servicePossible ( 5 -

10)Wed, 12-Apr-2017 05:00 Wed, 12-Apr-2017 10:00 1 0 Approved


230 KV PUDUKKOTTAI - KARAIKKUDY PG

FEEDER BREAKER, CT, CVT, ISOLATORS

AND 230 KV EHT LINE

FOR MONTHLY MAINTENANCE WORKS OF

BREAKER, CT, CVT, ISOLATORS AND 230 KV

EHT LINE AND GRT TESTING WORKS

PUDUKKOTTAI 230 KV SS LOADS WILL BE MAINTAINED FROM 230 KV ALUNDUR

FEEDER AND HENCE THERE WILL BE NO INTERUPTION OF SUPPLY TO ANY SS.POSISBLE Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1

Due to ALDR ICT

Loading.This LC

programmed

along with PDKT

AuTO LC

Approved

565 Madurai 230 KV KARAIKUDI 230 KV On 230KV PGCIL-PDKT #. Tree cutting work. Concerned Obtained from EE/O/PDKT. POSISBLE Wed, 12-Apr-2017 9:00 Wed, 12-Apr-2017 17:00 1

Due to ALDR ICT

Loading.This LC

programmed

along with PDKT

AuTO LC.App in

129occ /179

Approved subject to

SRLDC approval

566 Chennai 230 KV SPKoil lines 230 kV Kalpakkam - Acharapakkam feeder Insulator Replacement work Possible Thu, 13-Apr-2017 10:00 Thu, 13-Apr-2017 17:00 1 approved Approved

567 Chennai 230 KV SPKoil lines 110 KV Orgadam feeder 1 Quertaly maintenance work Possible Thu, 13-Apr-2017 10:00 Thu, 13-Apr-2017 17:00 1 approved Approved

568 Madurai 230 KV KODIKURICHY 230 KVAuto I H.V and L.V Breaker with C.T. and all

isolators.Monthly Maintenance Work on Auto Transformer I During the L.C period(i)Auto-I will be out of service,(ii) Auto-II & III will Cater the SS load POSSIBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

SUB TO WIND

GENERATIONApproved

569 Erode 110 KV Erode 110 KV110 KV ERODE - THINGALORE II FEEDER



OBTAINED FROM SE/EEDC/ERODE.possible Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 14:00 1

subject to the load


570 Madurai 230 KV PASUMALAI 230 KV1).230 KV Pasumalai - TTPS #, BKR & CT,LI

only. 2) Line Entire.

a)Maintenance Works of BKR & CT,LIb)Tree cutting

works and Flash over Disc replacement worksEE / EM - III / TTPS has also programmed POSSIBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 14:00 1

SUB TO TTPS

GENERATIONApproved

571 Madurai 110 KV SRPUDUR 230 KV110 KV SR Puthur - Kodayar I # line section

between Veeyanoor and Pechiparai.

Tree clearance work and Tower to Tower inspection.

.

During the LC period the 110 KV SR Puthur - KDR I # will be radial from SR Puthur upto

Veyanoor SS(incl) and KDR I feeder will be radial from Kodayar PH to Pechiparai SS

(incl). Hence no ss will be affected.

POSSIBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 14:00 1 0 Approved

572 Madurai 230 KV TTPS 230KV TTPS-MADURAI FEEDER For maintenance work and MRT testing1)Both end Breakers to be tripped2)Both end Bus and Line Isolators to be opened 3)Both

end earth switches to be closed conditionPOSSIBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

SUB TO TTPS

GENERATIONApproved

573 Madurai 230 KV KODIKURICHY 230 KV230KV Amuthapuram- Nallamanaickenpatty-

Checkanoorani feeder - I

For rectification of Arching Horn at Location No:375

(Y Phase)&365 (R&Y Phase)

During LC Period, 1. 230 KV Nallamanayakkan pattiSS will be fed from 230KV

Checkanoorani SS No ss will be affected.POSSIBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

230 AMPM-

CKNI&230KVCKN

I-NMPT # TO BE

TIED AND CKNI

ICT LOADING

Approved

574 Madurai 230 KV AMUTHAPURAM 230 KV230KV Amuthapuram-N.M.Patty Feeder with

Breakers,CTs and its isolatorsMonthly Maintenance Work

1) During the LC period there will be NO supply in this feeder. 2) Other end also avail LC

on same day. 3) Concurrence obtained from SE/NCES/TIN.POSSIBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

230 AMPM-

CKNI&230KVCKN

I-NMPT # TO BE

TIED AND CKNI

ICT LOADING

Approved


KV

On 110KV TTN-Sipcot-I feeder breaker with

CT bus and line side switchesFor monthly maintenence work

No SS will be affected.During this LC period 110KV vagaikulam SS will be radially fed

from 230KV meelavitan SS.POSSIBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

SUB TO LOAD

CODITIONApproved

576 Madurai 230 KV VALUTHUR 230 KV 230KV Valuthur - Alagarkovil entire.For attending breaker CT's and it's isolators Monthly

maintenance work.

During the LC period evacuation will be done through 230KV Valuthur - Kavanoor and

Karikudi feeders.POSSIBLE Thu, 13-Apr-2017 10:00 Thu, 13-Apr-2017 17:00 1

SUB TO TIEING

OF 230 ALKL-

ALDR #

Approved Subject to

load condition

577 Madurai 230 KV then I 230 KV230 KV THENI- CHEKKANURANI #

BREAKER WITH CT AND LINE ISOLATER.

FOR MONTHLY MAINTENANCE AND LINE

PREMONSOON INSPECTION WORK.

TOTAL SHUT DOWN TO BE PROPOSED IN THE FOLLOWING 110 KV SUB

STATIONS FOR LOAD RELIEF OF 108MW (110/22 KV GANDAMANUR SS,THEVARAM

SS, AYYAMPALAYAM SS,BATLAGUNDU SS,VAIGAI SS,&ANDIPATTY SS)

POSISBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

ONLY 40 TO 50

S/D PROPOSED.

MORE S/D

NEEDED

Approved Subject to

load condition


TTY 230 KV

230KV AMUTHAPURAM FEEDER BREAKER

WITH C.T AND LINE ISOLATORFOR MONTHLY MAINTENANCE WORK

DURING THE L.C PERIOD OTHER END ALSO AVAILING L.C ON THAT DAY.NO SS

WILL BE AFFECTEDPOSSIBLE Thu, 13-Apr-2017 10:00 Thu, 13-Apr-2017 16:00 1

230 AMPM-CKNI

&230KVCKNI-

NMPT # TO BE

TIED AND CKNI

ICT LOADING

Approved Subject to

load condition

579 Madurai 110 KV KAVANOOR 230 KV110 KV KARAIKUDI-VALUTHUR # SEC.

BET. THIRUVADANAI TO THONDILINE MAINTENANCE WORKS

MAIN LINE WILL BE KEPT IN TIED CONDITION. THONDI TO BE AVAILED

SHUTDOWN; L.R. -1.5 MWPOSSIBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1 0 Approved

580 Madurai 110 KV KARAIKUDI 230 KVOn 110KV TCP #'r Bkr & CT's and its O/G

isolator.For Monthly Mtc work.

During the Lc Period No Generation in TCP Consent Obtained from TCP

Generator.Hence there will be interruption of Supply.POSSIBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1 0 Approved


KV

110KV Rasipuram feeder CB, CTs and LIne

Switch.For regular maintenance works.

During LC period110KV Elanagar SS now back fed through 110KV PSI- Rasipuram

feeder will be transferred to Unjanai 230KV SS.110KV RAsipuram SS will be back fed

through 110KV PSI-KN Patty feeder.Otherwise 110KV Rasipuram + Elanagar SSs will be

transferred to 110KV Salem-Mallur feeder.No supply interruption.

possible Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 15:00 1subject to transfer

of loadsApproved

582 Madurai 230 KV UDAYATHUR 230 KV230kv Bus Coupler Breaker& Transfer Bus

Entire.Annual Maintenance work During the LC period NO 230kv feeders,230kv PowerTrs,and Auto Tr.affectd POSSIBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 14:00 1 0 Approved

583 Erode

GENERATI

NG

STATIONS


POWER House.possible Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 15:00 1

other machines

will be availableApproved

584 Madurai 110 KV THIRUVARUR 230 KV 110KV Thiruvarur - T.R. Pattinam feederLine Premansoon inspection and Rectification work,

Breaker, CT's and Isolator maintenance work.

During the LC period there will be no interruption of supply to any other substation, Since

this feeder is idly charged condition.POSSIBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1 0 Approved


230 KV

110 KV Western Bus Section Entire (Auto Tr-

I, TDLR I & II #'s, Negamam I & II #'s, Sulur #

( Breaker & CT's, Bus dropper & jumper, PT-

I)

for annual bus maintenance works and defective

switch (

During the LC period,(1) 110KV Madhampatty SS,Anthiyur SS,Devarayapuram SS and

peedampalli SS will be under Total Shut down.(2) 110KV OKM-Thudiyalur I & II feeder

loads will be transferred to 230 KV TDLR SS. (3) 110KV OKM-Negamam I & II feeder will

be kept radial from 110KV Negamam SS.(4) 230/110KV Auto Transformer I will be under

Cut OFF condition.(5) The reamining two Auto Transformers will be under service to cater

the SS loads.Hence, No SS will be affected.


subject to all the

connected feeders

being kept radial

from the other end

Approved


230 KV110 KV Bus section Breaker (Breaker & CT's) for monthly maintenance works

During the LC period, (1) 110KV Madhampatty SS, Anthiyur SS,Devarayapuram SS &

Peedampally SS will be under Total Shut down.(2) 110KV OKM-Thudiyalur I feeder loads

will be transferred to 230KV TDLR SS.(if necessary)(3) 230/110KV Auto Transformer-I

will be capable for managing 110KV Western bus loads and Auto Transformer II & III will

be capable of managing 110KV Eastern bus loads.Hence, No SS will be affected.


subject to the

above condition

being fulfilled

Approved

587 Madurai 110 KV EACHANGADU 230 KV110 kv MCL-1 Feeder BREAKER , CT'S

ONLYMONTHLY MAINTENANCE WORK

DURING THE ABOVE SHUTDOWN PERIOD THERE WILL BE NO INTERRUPTION TO

EHT CONSUMER .Since the feeder is in idly chargedPOSSIBLE Thu, 13-Apr-2017 10:00 Thu, 13-Apr-2017 17:00 1 0 Approved

588 Madurai 230 KV SEMBATTY 230 KV 230KV SBT - Theni # Bkr, CTs and line entire 1. Monthly maintenance work2. Tree cutting work During the LC period the other end is also availing LC. 0 Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1Preponed TO

12.4.17Approved

589 Erode 230 KV Udumalpet 400 KV230 KV MYVADI - KADAMPARAI - 1

FEEDER BREAKER, CT AND LINE ENTIREMONTHLY MAINTENANCE WORK BOTH END AVAIL LC possible Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

subject to

utilization of

kadamparai

machines

Approved

590 Madurai 110 KV KAYATHAR 230 KV110KV Melakallur-Sanganeri Feeder sec b/w

Karisalpatti&melapalayamFor Defective Disc replacement at Various location.

During the LC period,I.Melapalayam SS will be radially fed from Sanganeri II.Karisalpatti

SS willbe radially fed from Melakallur SS Hence No SS affectedPOSSIBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

SUB TO WIND

GENApproved

591 Erode 110 KV DEVIAKURICHI 230 KV110 KV Deviakurichy-Singipuram feeder- I

Breaker, CTs and Line side isolatorsFor Monthly Maintenance work

110KV Deviakurichy - Singipuram feeder- I will be kept radial from Singipuram 230KV SS

end.possible Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

subject to the

feeder being kept

radial from

singapuram ss

end

Approved


230 KV

On 230 /110 KV Auto-II, HV-II and LV-II

breakers with CTs and LAS only.For monthly maintenance work.

Â During the L.C period, Auto Transformer I will be in service and no SS will be affected

please.POSSIBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

SUB TO LOAD

CONDITIONApproved

593 Chennai 230 KV Sriperumbudur 400 KV230kv sv chatram-Mambakkam feeder entire

lineLine patrol and jumper tightness work During the period of shutdown 230kv spr-mambakkam will be in service Possible Thu, 13-Apr-2017 05:00 Thu, 13-Apr-2017 09:00 1 0 Approved

594 Chennai 230 KV ACHRAPAKKAM 230 KV110KV ACK -MURUKKERI FEEDER

BREAKERS AND CT'STO CARRYOUT MONTHLY MAINTENANCE WORK

1.110KV ACK- MURUKKERI FEEDER WILL BE HANDTRIPED CONDITION IN ACK

230KV SS END.2.110KV MURUKKERI SS LOAD WILL BE TRANSFERED TO 110KV SP

KOIL II FEEDER THROUGH 110KV ILLEDU SS VIA3.HENCE NO INTERUPTION OF

POWER SUPPLY


595 Erode 110 KV Udumalpet 110 KVline. Between UDT and Anthiyur


other end.postponed Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

okm bus lc

recommended

Subject to

EE/SLDC/Erode

approval

596 Erode 110 KV THUDIALUR 230 KV 110KV Paykara BR & CTs For Monthly Maintenance & annual relay test Work110KV Kathirnaaiken palayam SS will be under Total Shutdown and Aquasub EHT Will

be fed from 110KV P N Palayam Feederpossible Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 15:00 1

subject to

kathirnaickenpalay

am ss tsd

Approved


KV230KV SVC - Mambakkam # entire for monthly maintenance work During the LC period the 230KV SVC - Mambakkam # will be out of service Possible Thu, 13-Apr-2017 09:00 Thu, 13-Apr-2017 17:00 1 0 Approved

598 Erode 110 KV PONNAPURAM 230 KV

110 KV Ponnapuram - Thungavi # Breaker &

CTsAND LINE UPTO S/S OF THUNGAVI

S.S.

FOR MONTHLY MAINTENANCE WORKS.

1. 110KV THUNGAVI FEEDER WILL BE KEPT RADIAL FROM 230KV UDT SS/110KV

POOLAVADY FEEDER UPTO POOLAVADY S.S. WITH THE ENTIRE LOAD OF

THUNGAVI S.S.2.HENCE NO SS WILL BE AFFECTED.


subject to the

feeder being kept

radial from udpt ss

Approved

599 Chennai 230 KV

SPR

SIPCOT(MAMBAKKAM)

230 KV

Breaker, Current Transformers & Line side

isolator only.


During the period of shutdown the entire load of 230KV SIPCOT Mambakkam SS

[Approximately: 45MW] will be fed from 400KV Sriperumbudur SS through 230KV

SIPCOT- Sriperumbudur feeder without interruption.


600 Erode 110 KV SINGARAPET 230 KV110 KV Link II # Breaker and CTs & line

isolators




of supplypossible Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 15:00 1

subject to the

other link feeder

loading limit

Approved

601 Madurai 230 KV SANKANERI 230 KV230KV Sankaneri-Abisekapatti feeder

Breaker CTS&Lineswitches.For monthly maintenance purpose. During the LC Period there willbe no supply in the Entire feeder. POSSIBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 14:00 1

App in 129

occ/134SUB TO

WIND GEN

Approved

602 Erode 230 KV ARASUR 230 KV230 KV Arasur - Gobi feeder Br,CTs and line

entire.

1) For Releasing and restringing of 3 Nos. Kundha

conductor and 1 No. earth wire between loc 196 and

197 and 3 Nos. Zebra conductor and 1 No. earth

wire between loc 37 and Loc 38 by TLC wing

Mettupalayam wing of GCC/Coimbatore.2)PMI

Works by lines wing 3) Annual relay testing works by

P & C wing /Thudialur 4) Monthly maintenance work

During the Line Clear period,rother five number 230 KV Feeders will be in service. possible Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1subject to the load


603 Madurai 110 KV SRPUDUR 230 KV On 110 KV Bus III OnlyBus side Isolator No.41 of 110 KV Arumuganeri II

feeder. Allignment Work.

110 KV SRP - ARMI # I & II will be radial from ARMI SS upto SRP (excl).110 KV SRP-

Kodayar II #.radial from Kodayar upto SRP (excl) and Parasala (Incl). 110 /11KV SRP.SS

will avail total Shutdown. Approved by SE/KKEDC/NGL.

POSSIBLE Thu, 13-Apr-2017 10:00 Thu, 13-Apr-2017 14:00 1SUB TO WIND

GENApproved

604 Madurai 230 KV ALUNDUR 230 KV230KV Alundur - Thanjavur-II Feeder

Breaker, CT's, CVT's and Line Isolators.

a)Monthly Preventive Maintenance work.

b)Premonsoon Inspection and tree cutting work.

c)Relay Testing Work.

During the LC period, a)Other end also avail shutdown. b)All other 230 KV feeders will be

in service. c)There will be no interruption of supply to any other feeders.

NOT

POSSIBLEThu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

PROGRAMMED

ALONG WITH S/D

Subject to EE/SLDC/

Madurai approval

605 Erode 230 KV UNJANAI 230 KV

Villipalayam SS

Jumper Tightness Checking work.Valayapatti 110KV #

0 Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1sldc madurai

recommendationApproved

606 Erode 110 KV Singarapet 110 KV110 KV LINK # II OMCB Bkr, CTs & Line




subject to the

other link feeder

loading limit

Approved

607 Madurai 110 KV kayathar230kv 110KV Bus Coupler Breaker (104-52) only Monthly Maintenance workDuring the LC period there will be no supply in 110KV Bus Coupler Breaker (104-52) only.

hence no substation affected.POSSIBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1 0 Approved

608 Erode 230 KV INGUR 230 KV110KV Thiruvachi # Breaker, CTs, ,Isolators

and Line side IsolatorMONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 14:00 1

subject to the load


609 Erode 230 KV INGUR 230 KV

Auto Transformer III and its HV & LV

Isolator

MONTHLY MAINTENANCE WORKS possible Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 14:00 1

subject to the

other auto trs

loading limit

Approved

610 Madurai 110 KV kamuthi 400 KV110 KV KEELAVERANAM # BREAKER AND

CT ONLYMONTHLY MAINTENANCE WEORK

110 KV KEELAVERANAM SS WILL BE FEED FROM 110 KV UTHUMALAI SS ,NO SS

AFFECTEDPending Thu, 13-Apr-2017 10:00 Thu, 13-Apr-2017 17:00 1 Approved

611 Chennai 230 KV MANALI 230 KV 230kv Main Northern Bus1.For replacement of damaged fixed jaw contacts in

230kv Bus switch in 230kv GIS SS Bay


transferred to other endsPossible Thu, 13-Apr-2017 06:00 Thu, 13-Apr-2017 11:00 1

Subject to CBD

Concurrence

Pending To be

discuss

612 Madurai 110 KV KAYATHAR 230 KV110 KV Kayathar - N.Subhiahpuram #

Breaker with CT onlyFor Monthly Maintenance work During the LC Period other end also avails LC. Hence, no SS affected POSISBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

SUB TO LOAD

CONDITIONApproved

613 Madurai 230 KV THANJAVUR 230 KV230 KV Thanjavur - Alundur-2 feeder,

breaker, CT & LI.




During the LC period,1) other end also will avail LC on the same day,2) all other 230 KV

feeders will be in tied condition,3) no supply interruption to any SS.

NOT


PROGRAMMED

ALONG WITH S/D

Subject to EE/SLDC/

Madurai approval

614 Erode 230 KV karamadai230KV 230KV Karamadai-Pushep feeder. PMI works by AE/Lines/Kattabettu. LC programmed at other end also. postponed Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

230 kv arasur to

gobi feeder lc

recommended

Approved


110KV Deviakurichi-Singapuram I

Feeder(section Between Deviakurichi 230KV

SS -Attur 110KV SS)


1)230KV Deviakurichi-Singapuram I Feeder breaker & CT's Maintenance availing

Deviakurichi SS. 2)110KV Deviakurichi-Singapuram I Feeder series switch at Attur 110KV

SS towards Deviakurichi side will be Kept Opened.3)There will be no interruption of

supply to any SS.


subject to the

feeder being kept

radial from

singapuram ss

end

Approved


230 KV

A)AUTO TRANSFORMER-II, HV-II, LV-II

BREAKERS AND CT's. B)110KV Pattukkottai

-Peravurani - Sethubavachitram-

Keeramangalam Radial feeder. (LP: 110KV

Peravurani SS to 110KV Sethubavachitram

SS ).


AEE/MTC/N T KUDI.B) FOR PREMONSOON

INSPECTION WORK BY AE/LINES

/PATTUKKOTTAI

1) DURING THE LC PERIOD, 110KV PERAVURANI (LR: 20MW) AND 110KV

SETHUBAVACHATHITRAM SS(LR: 8 MW) AND 110KV KEERAMANGALAM (LR:

12MW) WILL AVAIL TOTAL SHUTDOWN.2) AUTO TRANSFORMER-I in service.3) NO

INTERRUPTION TO ANY OTHER SS.4) IF NECESSARY, 110KV N T KUDI-

THANJAVUR FEEDER TIE WILL BE OPENED AT 230KV N T KUDI SS.

NOT

POSSBLEThu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

DUE TO AUTO

LOAD

CONDITION:

MORE S/D

REQUIRED

Subject to EE/SLDC/

Madurai approval

617 Erode 110 KV METTUR AUTO 230 KV110KV Main Bus portion between MBS 1 to

western sideFor Annual Maintenance work During the LC period 110KV Auxiliary Bus portion will be in service possible Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

subject to the load


618 Erode

GENERATI

NG

STATIONS

PYKARA UNIT 3 FOR MONTHLY MAINTENANCE WORK NIL possible Thu, 13-Apr-2017 8:00 Thu, 13-Apr-2017 17:00 1other units will be

availableApproved

619 Chennai 110 KV CUDDALORE 230 KV 110 KV BUS coupler breaker with CT'S For monthly maintenance worksDurind the period of LC 110KV Bus 'A' & 'B' will be independently Hence NO Interruption

of SupplyConcurrence obtained from SE/O/VillupuramPossible Thu, 13-Apr-2017 09:00 Thu, 13-Apr-2017 17:00 1 0 Approved

620 Erode 230 KV PUSHEP 230 KV PUSHEPH - KARAMADAI # MONTHLY MAINTENANCE WORKS230 KV PUSHEPH - KARAMADAI FEDDER IN Tripped condition, 230 KV line & Bus

isolators in open conditionpostponed Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

230 kv arasur to

gobi feeder lc

recommended

Approved

621 Chennai 110 KV MOSUR 230 KV For attending Monthly Maintenance work.

The 110 KV Thiruttani SS(20MW) availing Total Shutdown work.2) The 110 KV

Poonimangadu SS (08 MW) Availing total shutdown work 3). 110 KV AJPET SS (18 MW)

Availing total shutdown work 5). Hence there will be no interruption of supply please.


622 Chennai 230 KV MOSUR 230 KVAUTO TRANSFORMER NO-III, HV -III , LV-

III, CT'S AND LAS onlyFor attending Monthly Maintenance work.

the 110 KV Thiruttani SS availing Total Shutdown work. 2)Auto Transformers I,II,&IV are

in service condition 3) Hence there will be no interruption of supply please.Possible Thu, 13-Apr-2017 09:00 Thu, 13-Apr-2017 17:00 1 0 Approved


KV

110 KV APKM - Thulukkapatti I feeder Br.,

CT and Line entire.

(a) Monthly Maintenance Works of BKR & CT,LI.

(b)For replacement of flash over disc at Loc. No.5 &

14.

During the LC period 110 KV Sattur SS will be availing total shut down. Hence no ss will

be affected.POSSIBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 14:00 1 0 Approved


KV230 KV TTPS - PSQ feeder Premonsoon inspection works

During the LC period The other end also will be availing LC on the same date. Hence No

SS affected.POSSIBLE Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1 0 Approved


KV

110 KV Thulukkapatti - Aruppukkottai fedder

section between 110 KV MRPM SS and

Thullukkapatti SS

(a) Line deviation of line between Loc. 1 to 3 on

DCW basis. (b) For providing GI Metel spike on

tower cross arm.

During the LC period, 110 KV Velayuthapuram SS,110 KV MRPM SS and M/s.SRM EHT

under total shut down.110KV Aruppukkottai SS load will be transfer to 110KV Kavanoor -

Kamuthi feeder. Hence no SS will be affected.

POSSIBLE Thu, 13-Apr-2017 7:00 Thu, 13-Apr-2017 17:00 1SUB TO LOAD

CONDITIONApproved


230 KV

230KV TBC Breaker section between 89 MA

and 89 MB bus isolatorsTo remove the loop jumper provided in

During the LC period,(1) 110KV Madhampatty SS,Anthiyur SS,Devarayapuram SS and

peedampalli SS will be under Total Shut down. (2) 110KV OKM-Thudiyalur I & II feeder

loads will be transferred to 230 KV TDLR SS.(3) 230/110KV Auto Transformer-I under

independent condition and capable to manage 230KV Western Bus loads and 110KV

western bus loads (110KV Bus section breaker under cut-OFF condition) with support of

wind generation.(4) 230/110KV Auto Transformer-II & III under parallel condition and

capable to manage 230KV Eastern Bus loads.(5) Already 230KV OKM-Palladam feeder is

substituted with TBC Breaker to retain its original condition.

postponed Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

110 kv western

bus lc

recommended

Subject to

EE/SLDC/Erode

approval

627 Erode 110 KV SINGAPURAM 230 KV 110KV salem II Feeder (CT,Breaker) Monthly Maintenance1.Monthly Maintenance 110KV salem II feeder will be fed radially from salem end. 2.Auto

LC at salem end is on 03.04.2017 & 15.04.2017 & 21.04.2017 Only.possible Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

subject to the

feeder being kept

radial from salem

ss end

Approved

628 Chennai 230 KV

BASIN

BRIDGE(GMRVASAVI)

230 KV

230 KV Mylapore # Annual Relay test by GRT / Metro / Chennai230 KV Mylapore # will not be in service and 230 KV Tondiarpet # , all 110 KV #s , Auto

Tr 1,2,3 will be in service.Possible Thu, 13-Apr-2017 09:00 Thu, 13-Apr-2017 17:00 1 0 Approved

629 Erode 230 KV GOBI 230 KV230 KV ARASUR FEEDER BREAKER AND

CT'S WITH LINE SWITCH



WORK

230 KV MTPS II FEEDER,230 KV ANTHIYUR FEEDER AND 230 KV

PALLAKAPALAYAM FEEDER ARE IN SERVICE,IT MAY CATER THR LOAD.postponed Thu, 13-Apr-2017 9:00 Thu, 13-Apr-2017 17:00 1

to be rescheduled

with the other end

lc

Approved

630 Chennai 230 KV Orgadam 230 kV 230 Tie Breaker Quartely Maintenance Work Possible Thu, 13-Apr-2017 09:00 Thu, 13-Apr-2017 17:00 1 0 Approved

631 Chennai 110 KV MANALI 230 KV 110kv Bus Section-2 Routine maintenance works a Pending Fri, 14-Apr-2017 10:00 Fri, 14-Apr-2017 17:00 1 Condition Approved on 19th

632 Chennai 110 KV MANALI 230 KV 110kv Bus Section-2 Routine maintenance works a Pending Fri, 14-Apr-2017 10:00 Fri, 14-Apr-2017 17:00 1 0 Repeat

633 Chennai 110 KV KORATTUR 230 KV110 KV Avadi-Manali feeder (Between Puzhal-

Muthur)Jumper Tightness at various location

110 KV Mathur SS will be supply fed from 230 KV Manali SS & 110 KV Puzhal SS will be

fed from 110 KV Thirumullaivoyal SS

Postponed to

Sunday

16.04.17

Fri, 14-Apr-2017 09:00 Fri, 14-Apr-2017 17:00 1 0 Approved

634 Chennai 230 KV Sriperumbudur 400 KV 230KV SPR-Kadapperi-1 feeder Quarterly maintenance work During the period of shutdown 230KV-Kadapperi-2 feeder will be in service Possible Fri, 14-Apr-2017 09:00 Fri, 14-Apr-2017 17:00 1possible with CBD

concurrenceApproved

635 Chennai 230 KV Kadapperi 230KV SPR-Kadapperi-1 feeder Quarterly maintenance work Top Phase insulator replacement work at 19 Possible Fri, 14-Apr-2017 09:00 Fri, 14-Apr-2017 17:00 1possible with CBD

concurrenceApproved

636 Chennai 230 KV SPKoil230 KV 230 KV Kalpakkam feeder 1 Insulator Replacement work Possible Sat, 15-Apr-2017 09:00 Sat, 15-Apr-2017 17:00 1 0 Approved

637 Chennai 230 KV Kadapperi Auto Transformer 2 Monthly Maintenance Work Possible Sat, 15-Apr-2017 09:00 Sat, 15-Apr-2017 17:00 1possible with CBD

concurrenceApproved

638 Chennai 230 KV SPKoil lines Auto Transformer 1 Monthly maintenance work Possible Sat, 15-Apr-2017 10:00 Sat, 15-Apr-2017 17:00 1 approved Approved

639 Madurai 110 KV TRICHY 230 KVand CTs only

For Monthly Maintenance works

During the LC period, a) 110KV Trichy-Srirangam feeder will be radially fed from 230kv

samayapuram SS upto 230KV Trichy SS. b) All other 110KV feeders are in tied condition.

c) there will be no interruption of supply to any other feeder and SS. d) Necessary

concurrence obtained from other 230KV Samayapuram SS end.

POSSIBLE Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 17:00 1Due to 110 Smpm-

Try # LC at SmpmApproved


400 KV MAIN BREAKER FOR ICT-1(406-

52),TIE BREAKER (405-52),110 KV LV

BREAKER (101-52),110 KV AYYANARUTHU-

1,AYYANARUTHU-2 ,KEELAVEERANAM

FEEDER BREAKERS,400/110 KV ICT-1 &

110KV Bus-1&2-PT


During the LC period there will be no supply in 400 KV MAIN BREAKER FOR ICT-1(406-

52),TIE BREAKER (405-52),110 KV LV BREAKER (101-52),110 KV AYYANARUTHU-

1,AYYANARUTHU-2 ,KEELAVEERANAM FEEDER BREAKERS,400/110 KV ICT-1 &

110KV Bus-1&2-PT.


App in 129

OCC/154 . sub to

providing jumper

bw Vannikonendal

and uthumalai

Approved subject to

SRLDC approval

641 Madurai 110 KV TRICHY 230 KVand CTs only

For Monthly Maintenance works

During the LC period, a) 110KV Trichy-Srirangam feeder will be radially fed from 230kv

samayapuram SS upto 230KV Trichy SS. b) All other 110KV feeders are in tied condition.

c) there will be no interruption of supply to any other feeder and SS. d) Necessary

concurrence obtained from other 230KV Samayapuram SS end.

NOT


DUE TO 110

SMPM-TRY # LCApproved


110KV Samayapuram - Srirangam feeder line

portion between 110KV Samayapuram SS

and 110KV Srirangam SS.


During the above period of shut down a) The 110KV Srirangam SS avail total shutdown

on the same date. b)110KV Kambarasampettai SS will be fed radially from 230KV Trichy

Auto SS. C) 110KV AIA EHT Service, 110KV Samayapuram SS will be fed radially from

230KV Samayapuram Auto SS. d). The line Isolator towards 110KV Srirangam SS at

110KV Samayapuram ss will be Kept opend and earth switch closed. e)The line Isolator

towards 110KV Samayapuram ss at 110KV Srirangam SS will be Kept opend , Breaker in

H/T condition and earth switch closed. f) There will be no interuption to any other SS/EHT

consumers.

POSSIBLE Sat, 15-Apr-2017 10:00 Sat, 15-Apr-2017 17:00 1SUB TO LOAD

CONDITIONApproved

643 Madurai 110 KV KODIKURICHY 230 KV1)110 KV Veerasigamani# I Breakers with

C.T and All Isolators .1)Monthly maintenance work

1 Echantha SS will be FED From Veerasigamani # II by closing of 110KV AB Switch at

echantha SS towards Veerasigamani SS.POSSIBLE Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 17:00 1 0 Approved

644 Madurai 230 KV KAYATHAR 230 KVOn 230KV Kayathar - TTN Auto feeder



Tower inspection work.During the LC period, Other end also availing LC, Hence no SS affected. POSSIBLE Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 17:00 1

SUB TO TTPS

GENERATIONApproved

645 Erode 110 KV Erode 110 KV110 KV ERODE - BKB I FEEDER BREAKER

AND CTMONTHLY MAINTENANCE WORK

DURING LC PERIOD ERODE 110 KV SS UNDER TOTAL SHUTDOWN. NECESSARY

CONCURRENCE OBTAINED FROM SE/EEDC/ERODE.possible Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 15:00 1

subject to the load


646 Erode 110 KV ANTHIYUR 230 KV 110KV Gobi feeder Breaker and CT only. For monthly maintenance of Breaker and CTDuring the LC period 110KV Anthiyur - feeder will be kept in radial condition from 230KV

Gobi SS end.Hence no SS will be affected.possible Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 15:00 1

subject to the

feeder being kept

radial from gobi ss

Approved

647 Madurai 230 KV PASUMALAI 230 KV100 MVA AUTO - I, HVB - I, LVB - I , CT

only.Monthly Maintenance Works

1)Auto Transformer - 2 will be in Service. 2)110KV Pasumalai - Sembatty feeder will be

kept radial from Sembatty end. 3)110KV Pasumalai - Alagarkoil -1 Feeder is kept radial

from Pasumalai feeding Avaniyapuram 4)110KV Pasumalai - Sakthisugars Feeders

section between Pasumalai to Uranganpatti will be under LC 5)110/33-11KV Villapuram

SS and 110/33-11KV Anupanadi SS will be under Shutdown Relief - 65 MW. 6)Hence

there is No interruption of Supply to any SS.


CONDITIONApproved


between Pasumalai and Uranganpatty1) Maintenance Works of BKR & CT, LI only. .




SS will be kept opened and earthed. 3)110KV Sakthisugar -Sivaganga Feeder will be in

grid . 4)110KV Alagarkoil - Karaikudi Feeder will be radial from Karaikudi upto


open. 6) 110/33-11KV Villapuram SS will be under Shutdown. 7)Concurrence obtained

from SE/Metro / Madurai, SE/Madurai and SE/Sivaganga for the above arrangements

POSSIBLE Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 14:00 1SUB TO TOTAL

S/DApproved

649 Madurai 230 KV PASUMALAI 230 KV110KV Pasumalai - Alagarkoil -1 # Section

between Avaniyapuram and Vandiyur SS

1) For Stringing the Panther Conductors from Loc

No 33 to 34 2) Providing the jumpers at Loc.33

towards Alagarkoil after replacement of DC Line on

DC Towers with Leopard Conductor into DC Line on

DC Towers with Panther conductor in the section

between from T.Loc 34 to T.Loc 44 by the TLC wing

and normalise the Feeder.

1)110/33-11KV Anupanadi SS will be under Shutdown . 2)110KV Pasumalai - Alagarkoil -

1 feeder will be kept radial from Alagarkoil upto Vandiyur SS 3)110KV Pasumalai -

Alagarkoil -1 feeder will be kept radial from Pasumalai upto Avaniyapuram SS 4)

Concurrence obtained from SE/Metro/ Madurai, SE/Madurai and SE/Sivaganga for the

above arrangements



between Pasumalai and Uranganpatty

1) For Stringing the Panther Conductors from DP

Loc No 33/2 to DP Loc No 33/1 2) For replacement

of the existing Leopard Conductor by Panther

Conductor from DP Loc No 33/1 to T.Loc 33 3)

Providing the jumpers towards Sakthi Sugars at DP

Loc No 33/1 after the replacement of DC Line on DC

Towers with Leopard Conductor into DC Line on DC

Towers with Panther conductor in the section from

DP Loc No 33/ 2 to T.Loc 44 by the TLC wing and

normalise the Feeder




SS will be kept opened and earthed. 3)110KV Sakthisugar -Sivaganga Feeder will be in

grid .4)110KV Alagarkoil - Karaikudi Feeder will be radial from Karaikudi upto


open. 6) 110/33-11KV Villapuram SS will be under Shutdown. 7)Concurrence obtained

from SE/Metro / Madurai, SE/Madurai and SE/Sivaganga for the above arrangements


651 Madurai 110 KV KODIKURICHY 230 KV 1)110 KV Kodikuruchi-Veerasigamani# I1) Replacement of defective insulator at location

NO.22 and Tree clearance work

During the lc period: 1 Echantha SS will be FED From Veerasigamani # II by closing of

110KV AB Switch at echantha SS towards Veerasigamani SS.0 Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 17:00 1 REPEAT Repeat

652 Madurai 230 KV PUGALUR 230 KVAuto transformer II, HV II and LVII

Breaker,CT's and LAS only.For Monthly Maintenance Work

During the L.C Period HVII and LV II are tripped condition. There is no interruption to any

SS. 110KV Velliyanai SS and 110KV Manmangalam SS are proposed total shutdown.

Load contain with in two auto transformer (I & III)


CODITIONApproved

653 Madurai 230 KV PUGALUR 230 KV230 KV Pugalur - Pudansanthai feeder

Breaker, CT & line entire1. Monthly maintenance work, 2. Line Patrol Work

During the LC period, there will be no supply in 230 KV Pugalur - Pudansanthai feeder

since other end also availing L.C on the same period.POSSIBLE Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 17:00 1

SUB TO LOAD

CONDITIONApproved


KVOn 110 KV Northern Bus entire

a) Arni-I feeder switch No.94 alignment work. b)

110KV Arumuganeri -I CT to switch Jumper

changing

No SS will be affected . During the above LC period all 110KV radial feeders will be fed

from 100 MVA Auto Transformer-II. 110KV Arni-I, II, Sipcot-I, II, & III will be kept in Off

condition at Auto SS end and are radial from other end. 110KV Manjalneerkayal SS will

be radialy fed from 110KV Arni-SS. 110KV Vagaikulam SS, 110KV Kombukaranatham

SS and 110KV Town SS will be radily fed from 230KV Sipcot SS.

NOT


PROGRAMMED

ALONG WITH

TOTAL S/D

Subject to EE/SLDC/

Madurai approval

655 Erode

GENERATI

NG

STATIONS

LOWER METTUR 3

On Unit I & II complete with their internals

along with Power Transformers, GC Breakers

and Barrage Gates .

To carryout Common Spell AOH works.

common spell AOH LC Approved for 19 days from 15.04.2017 08:00 hrs to 03.05.2017

17:00 hrs a)For drinking water purpose, pondage storage is kept as it is (present level

:172.79m storage:213 mcft ).Total depletion of pondage works will not be carried out

during The common spell AOH Period and the work will be carried out accordingly. b)

During Common spell AOH, Both units will be under shutdown and all the 110kv feeders

Will be in service except one day (Common Bus LC). c) Unit - I is under LC from

26.03.2017 to 14.04.2017 for independent spell AOH as per Schedule approved by

CE/Hydro/Chennai.

possible Sat, 15-Apr-2017 8:00 Tue, 18-Apr-2017 17:00 4

schedule

approved by

director operation

and director

generation

Approved



Monthly Maintenance WorkDuring 400/230 KV Auto Transformer II LC Period, 400/230 KV Auto Transformer I will be

in Service Condition. Hence there will be no interruption of supply.possible Sat, 15-Apr-2017 8:00 Sat, 15-Apr-2017 14:00 1

occ approved and

subject to the

other auto tr

laoding limit

Approved


STATION 230 KV230KV A-Bus Entire For Monthly maintenance works

During the LC period no feeders will be affected,All the 230KV Feeders will be transferred

to B-Bus which is in standby conditionPOSSIBLE Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 17:00 1 0 Approved

658 Madurai 230 KV VALUTHUR 230 KV 230KV Valuthur - Kavanoor feeder entire. Tree cutting workDuring the LC period evacuation will be done through 230KV Valuthur - Karaikudi and

Alagarkovil feeders.POSSIBLE Sat, 15-Apr-2017 10:00 Sat, 15-Apr-2017 17:00 1 0 Approved


A) 110 KV KAVANOOR-KAMUTHI 400 KV

SS # BR. & C.T. B) 110 KV KAVANOOR-

KAMUTHI # SEC. BET. KAVANOOR &

KAMUTHI (INCLUDING KADALADI SPUR

LINE)


MAINTENANCE WORKS

FEEDER TO BE KEPT RADIAL FROM KAMUTHI 400 KV SS TO KAMUTHI 110 KV SS

INCLUDING KAMUTHI, TAMILPADI. KADALADI TO BE UNDER TOTAL SHUTDOWN;

L.R. 18.6 MW



110 KV KAVANOOR-KAMUTHI # SEC. BET.

KAMUTHI 110 KV SS TO TAMILPADI 110

KV SS

LINE MAINTENANCE WORKS

FEEDER TO BE KEPT TIED BET. KVNR & KMTHI 400 KV SS. SEC. BET. KMTHI TO

TMPDI WILL BE UNDER LC. TAMILPADI SS LOADS TO BE TRD. TO ANPKM

FEEDING OR TAMILPADI SS TO BE UNDER TOTAL SHUTDOWN; L.R. -8 MW



KV

230KV Pugalur feeder CB, CTs, CVTs, Wave

Traps and 230KV Switches.For regular maintenance works.

During LC period230KV Unjanai and Deviakurichy feeders will be kept connected to

grid.No supply interruption.possible Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 17:00 1

other feeders will

cater to the loadsApproved

662 Madurai 230 KV KARAIKUDI 230 KVOn a) 110KV DVKT #'r Bkr & Ct's b) 110KV

DVKT # S/B KKDI - Sakkavayal.1)For Monthly Mtc Work.2)Line Replacement work.

During the Lc Period 1) Sakkavayal SS Under TSD 2) DVKT SS will be fed from 110KV

KKDI - VLDR Grid #'r. Hence there will be interruption of Supply.POSSIBLE Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 17:00 1 0 Approved


KV110KV BKB-I feeder CT,Breaker Monthly maintenance work Radially from other end possible Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 17:00 1

subject to the load


664 Madurai

GENERATI

NG

STATIONS

KUTTALAM64 MW GAS TURBINE GENERATOR AND

37 MW STEAM TURBINE GENERATOR

1)TO CARRYOUT OFFLINE WATER WASH

ACTIVITES IN GAS TURBINE. 2)TO ATTEND GAS

TURBINE GENERATOR CURRENT

TRANSFORMER OIL LEAK.

There will be no Generation from KGTPS during the above period and there will be no

supply interruption to any other SS.POSSIBLE Sat, 15-Apr-2017 0:00 Mon, 17-Apr-2017 0:00 3

SUB TO GRID

CONDITIONApproved


230 KV

110KV Kovilur - Trichy # Section between

Eriodu and Puthanatham SSTree Cutting Works

During LC period 110KV Kovilur - Trichy # will be radial from Trichy upto Puthanatham

SSIntermediate SS 110KV Eriodu SS and 110KV Palayam SS avail total

shutdown.110KV kovilur - Trichy # radial from kovilur upto 110KV Eriodu SS

POSSIBLE Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 16:00 1SUB TO S/D OF

PUDURPALAYAM

Subject to EE/SLDC/

Madurai approval

666 Madurai 230 KV UDAYATHUR 230 KV

1)230KVAuto Tr, HV&LV Br.(2)110kv bus.

(3)110kv Radhapuram fdr,Br, CT

only(4)110kv sankaneri fdr.Br. Ct

Only(5)110kv Samugarengapuram fdr. Br. Ct

only.

1.Maintenance work of 110kv Bus& Auto.Tr.

(2)Introduction of LBB protection in all 110kv br. by

GRT wing /SR.Pudur

1. During the LC period the 110kv Radaapuram SS is proposed to take Total SD on

15.04.2017.from 09.00 to 17.00hrs. (If 110kv Radapuram not taken Lc the ss willbe fed

from 110kv SR.Pudur-Arumuganeri fdrII.) 2) 110kv Navaladi SS willbe fed from 110kv

Sankaneri -Udayathoor feeder of Sankaneri ss. 3)There will be no supply to 110kv

Samugarengapuram 10 (1) SS suzlon SS. Samugarenagpuram ss proposed to avail SD

on 15.04.2017 during the LC period

POSSIBLE Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 14:00 1SUB TO WIND

GENApproved

667 Madurai 110 KV THIRUVARUR 230 KV110KV Thiruvarur - Mannargudy Feeder sec

between Thiruvarur and Manarkudi

Line premansoon inspection and Rectification work,

Beaker, CT's and Isolator maintenance work.

During the LC period the 110KV Ullikkottai SS, 110KV Okkanadu Kelaiyur SS & 110KV

Mannargudy SS radially fed from T(K)GTPS Generating station. Hence there will be no

interruption of supply to any other substation.


CONDITIONApproved


230 KV

110KV OKM-Sulur # section between 230KV

OKM SS and 110KV Edayarpalayam SS.

for P.M.I works by lines wing and monthly

maintenance works.

During the LC period, (1) 110 KV Peedampally SS loads will be transferred to 230 KV

Arasur SS.(2) Supply interruption to L&T EHT Service.(3) 110KV Edayarpalayam SS

already fed from 110KV OKM-Negamam II feeder of 230KV OKM SS.Hence, No SS will

be affected.

possible Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 14:00 1

subject to eht

concurrence and

transfer of loads

Approved

669 Madurai 230 KV SEMBATTY 230 KV110kv SBT - THENI II # Bkr, CTs and sec.

bet. SBT and Nilakkottai SS1. Monthly maintenance work2. Tree cutting work

During the LC period the feeder will be radial from other end upto Nilakottai SS. Hence no

interruption to any SS.POSSIBLE Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 17:00 1 0 Approved

670 Erode 230 KV Udumalpet 400 KV230 KV MYVADI - KADAMPARAI - II

FEEDER BREAKER, CT AND LINE ENTIREMONTHLY MAINTENANCE WORK BOTH END AVAIL LC possible Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 17:00 1

subject to

utilization of

kadamparai

machines

Approved

671 Erode 110 KV DEVIAKURICHI 230 KV110 KV TASPL Feeder( Neyveli Feeder- II)

Breaker and CTs.For Monthly Maintenance work 110 KV Neyveli # II will be kept radial from TS -I end. possible Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 17:00 1

subject to sldc

chennai

concurrence

Approved

672 Chennai 230 KV ARNI 230 KV110KV Arani Link Feeder Breaker and Its

110KV CTs and Line IsolatorFor Monthly Maintenance Work.

During the Period of Shut down the 110KV Arani SS availing Total Shut down. Hence

there will be no interruption of Supply.approved Sat, 15-Apr-2017 09:00 Sat, 15-Apr-2017 14:00 1 0 Approved

673 Chennai 230 KV ARNI 230 KV230/110KV Auto Transformer No I,HV I

Braeker,230KV CTs,110KV LV I Breaker

For Monthly maintenance work, HV I Breaker

Monthly Maintenance work, 230 KV CTs and 230KV

Isolators Bolt Nuts replacement work

During the period of shutdown,the 110KV Arani SS ( 55 MW)availing Total Shut down.

The Auto Transformer II & III will cater the station Loads. Hence there will be no

interruption of Supply

approved Sat, 15-Apr-2017 09:00 Sat, 15-Apr-2017 14:00 1 0 Approved

674 Chennai 230 KV ARNI 230 KV110 KV Arani-Kancheepuram Feeder,

Breaker,110KV CTs Line Isolator

Monthly Maintenance work, CT Clamp, and Bolt


During the Period of Shut down the 110KV Vembakkam SS availing Total Shut down.

110KV Mangal SS loads will be transferred to 400KV S.V.Chattiram through 110KV

Kancheepuram SS. Hence there will be no interruption of Supply.


675 Erode 230 KV THINGALUR 230 KVAuto Transformer II,HV II & LVII Breaker with

CTS.Monthly Maintenance. 110KV Erode SS Availing TSD. possible Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 14:00 1

subject to the

other auto tr

loading limit

Approved

676 Erode 110 KV THUDIALUR 230 KV 110KV Bus coupler Br & CTs For monthly mtce works Auto Transformer I & II parallel switch will be closed possible Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 14:00 1parallel switch to

be closedApproved


110KV Ponnapuram - Pethapampatty #

breaker & CTsand Line upto s/s of

Kottamangalam S.S.

FOR MONTHLY MAINTENANCE WORKS.

1.110KV PETHAPPAMPATTI FEEDER WILL BE KEPT RADIAL FROM 230KV UDT

S.S./110KV UDT-PNPM FEEDER UPTO KOTTAMANGALAM S.S.2.HENCE NO S.S.

WILL BE AFFECTED.


subject to the

feeder being kept

radial from udpt ss

end

Approved

678 Erode 230 KV SINGARAPET 230 KV230 KV Gurubarapally # Breaker, CTs & line

isolators and 230KV North Bus



During the LC perioda)230KV Gurubarapally feeder breaker will be in handtrip condition

at both ends since maintenance work programmed at both ends.b)230 KV

Vinnamangalam # breaker, 230 KV Thiruvalam # breaker & 230KV MTPS # Breaker will

be in Handtrip condition at Singarapet end and radial from other end. c) 230 KV BC

breaker will be in off condition.d) 230 KV Salem #, 230 KV Tiruvannamalai #, 230 KV Arni

# will be in service. (Now the 230KV Arani # is radial condition from Singarapet end, if

necessary the 230KV Arani # may be tied at Arani SS end to manage the Singarapet SS

loads)e) 230 KV GC Breaker, 3 nos of Auto transformers and all 110 KV feeders will be in

service, hence no interruption of supply.

1. possible 2.

postponedSat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 17:00 1

1. other feeders

will cater to the

loads; 2. north bus

lc issue would

overload the 230

kv

vinnamangalam to

shoolagiri feeder

Approved Subject to

EE/SLDC approval

679 Erode 110 KV ARASUR 230 KVBreaker and Its CTs.

For Monthly maintenance work.Karuvalur SS.


subject to the

feeder being kept

radial from

karuvalur ss

Approved

680 Erode 110 KV UNJANAI 230 KV110KV Puthansanthai-Pugalur feeder line

entirefor attending strand cut During the LC period the Pugalur SS avaling total LC on the same feeder possible Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 17:00 1

other feeders will


681 Erode 230 KV SALEM AUTO 230 KV100MVA Auto Transformer-I, HVI, LVI

Breakers & their CTsMonthly Maintenance work.

2Nos. 100 MVA Auto Transformer-II & III will be in service and adequate to share the

loads. There will be no interruption to any other SS or feeder.possible Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 17:00 1

subject to the

other auto trs

loading limit

Approved

682 Erode 110 KV INGUR 230 KV110KV Ponnapuram # I Breaker, CTs,

,Isolators and Line side IsolatorMONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 14:00 1

subject to the wind

generation support

being available

Approved

683 Erode 230 KV INGUR 230 KVAutotransformer I and its HV & LV I Breakers

MONTHLY MAINTENANCE WORKS 1.Kangeyam SS Total Shutdown- 40 MW2.DEPENDING UPON LOAD CONDITION possible Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 14:00 1

subject to the

other auto trs

loading limit

Approved


KV110KV Panjetty feeder bay

Monthly Maintenance work, CT clamp and bolt nuts

replacement workDuring the period of shutdown the 110KV Panjetty SS availing total shut down approved Sat, 15-Apr-2017 10:00 Sat, 15-Apr-2017 17:00 1 0 Approved

685 Madurai 110 KV THANJAVUR 230 KV110 KV Thanjavur - Alundur feeder, breaker,

CT & LI.



inspection & rectification works by the

AEE/Lines/Thanjavur.

During the LC period,1) this feeder will be radial from Alundur 230 KV SS upto Thuvakudi

110 KV SS,2) all other 110 KV feeders will be in tied condition,3) concurrence has been

obtained from Alundur 230 KV SS for radial feeding,4) 110 KV Thuvakudi &

Thiruverambur SS will avail shutdown on the same day,5) no supply interruption to any

SS.


CONDITIONApproved


110KV Deviakurichi-Neveli(TASPL) II

Feeder(section Between Deviakurichi 230KV

SS -Vappur 110KV SS)


1)230KV Deviakurichi-Neveli(TASPL) II Feeder breaker & CT's Maintenance availing

Deviakurichi SS.2)Chennasalem 110KV SS supply availing Deviakurichi-Neveli I Feeder

2)110KV Deviakurichi-Neveli(TASPL) Feeder series switch at Vappur 110KV SS towards

Deviakurichi side will be Kept Opened.3)There will be no interruption of supply to any SS.


subject to sldc

chennai

concurrence

Approved

687 Erode 230 KV PALLADAM 230 KV230 KV Palladam - PGCIL feeder

breaker,CT's and Line isolator with entire Line

1) To carryout Maintenance in the equipment's by

AEE/Maintenance/Palladam2) To carryout

Premonsoon inspection in the line by

AEE/Lines/Palladam3) To make LILO arrangements

to the newly erected line for 230 KV Tiroppur SS by

AEE/TLC/Palladam4) To carryout Relay testing by

AEE/P&C/Palladam

During LC period 1) Other 2 Nos 230 KV feeders will be in service2) OCC approval

obtained3) No other sub station will be affectedpossible Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 17:00 1

occ approved and

subject to the load

condition existing

Approved


110 KV palladam - Santhaipettai feeder

breaker,CT's and Line side isolator with entire

Line

1) To carryout Monthly maintenance works on

equipments by AEE/Maintenance/palladam2) To

carryout Premonsoon inspection on line by

AEE/Lines/Palladam

During LC period 1) 110 KV Santhaipettai SS and 110 KV Arulpuram SS availing total

shut down2) No other sub Station will be affectedpossible Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 15:00 1

subject to

santhaipettai ss

and arulpuram ss

availing tsd

Approved


KV

1. Autotransformer - I, Breaker, CT's and

LAS2. 110 KV Eastern bus and 3. 110 KV

Bus section breaker & CT's only


During the period of L/C time,1. 110 KV Samuthiram SS availing total S/D,2. 110 KV

Tiruvannamalai SS will be fed from 110 KV T.V.Malai - Villupuram #,3. 110 KV Kanji

feeder loads (Kanji SS, Adamangalam SS & Solar Generation) will be radially fed from

230 Kv Arni Substation.4. Autotransformer - I will be OFF condition,5. 110 KV Bussection

Breaker will be OFF condition6. Autotransformer - II will be in service and cater the

station loads. Hence there is no interruption of supply please.


690 Erode

GENERATI

NG

STATIONS

PYKARA UNIT 5 FOR MONTHLY MAINTENANCE WORK NIL possible Sat, 15-Apr-2017 8:00 Sat, 15-Apr-2017 17:00 1other units will be

availableApproved

691 Chennai 110 KV CUDDALORE 230 KV110 KV Cuddalore - Nathapattu # breaker


Durind the period of LC The 110 KV Nathapattu SS will be availing total shutdown. And

Feeder. Hence no interruption of supply. Hence NO Interruption of SupplyConcurrence

obtained from SE/O/Villupuram



GCC Wing work - For the existing 230 KV SC line of

Neyveli TS-I to Eachangadu feeder from Loc. No 16

to Loc. 134 for replacing the existing balance aged

Kundha conductors by Zebra conductors. Lc period

from 15.04.2017 to 28.04.2017(14 days)

Durind the period of LC 230 KV Eachangadu SS will be fed from 230 KV Samyapuram

feeder from Trichy end. During the period of LC the loads of 110 KV Vridhachalam Ss and

Pennadam SS are to be transferred to the 110 KV Neyveli -deviakurichi II feeder.Hence

NO Interruption of SupplyConcurrence obtained from SE/O/Villupuram

approved Sat, 15-Apr-2017 09:00 Tue, 18-Apr-2017 17:00 4 0To be finalized

during April end

693 Chennai 110 KV THIRUVALAM 230 KVentire.

For EHT Line Maintenance Works230 KV Thiruvalam SS to 110 KV Pakkam SS.ii. 110 KV Vaduganthangal SS of

VEDC/Vellore and 110KV Pakkam SS of TEDC/Thirupattur are availing total

Shutdown.Hence there will be no interruption of supply please.



Breakers and its Cts., for fixing of Differential

relay by GRT Wing /Thiruvalam and monthly

maintenance work.ii) On 110KV Gudiyattam

O/L & E/L Relay in 110KV Gudiyattam

Feeder and monthly maintenance work

i)For fixing of Differential relay in Auto Tr-I AND

O/L&E/L Relay in 110KV Gudiyattam Feeder by

GRT Wing /Thiruvalam and monthly maintenance

work.

During the period of LC i) The 110KV Katpadi SS, 110KV Vaduganthangal SS, OF

VEDC/Vellore and 110KV Pakkam SS of TEDC/Thirupattur are availing Total Shutdown

on 15.04.2017. The Total Shutdown approved and concurrence obtained by Chief

Link-I # and 230KV Mosur feeders will be in service and cater the SS Loads. Hence there

will be no interruption of supply please.


695 Chennai 110 KV Ulundurpet 230 KV 110 KV Ulundurpet feeder. Total shutdown maintenance work.

Ulundurpet 110KV SS Total shutdown maintenance work.It is proposed to to avail line

clear and 230 KV TS II(Gen)-Ulundurpet feeder for carrying out the reley test by

GRT/Villupuram. So, on this day Ulundurpet auto ss load roughly 50 MW meet out by

auto ss Villupuram.

0 Sat, 15-Apr-2017 09:00 Sat, 15-Apr-2017 17:00 1 possible Approved

696 Chennai 110 KV MOSUR 230 KV For attending Monthly Maintenance work.

The 110 KV Thiruvallur SS (32 MW) Availing Total shut down works .2). The remaining

110 KV Kadambattur SS (10 MW ) Loads will be transferred to 110 KV Thiruttani feeder

Kakkalur SS Load (18 MW) transferred to 110 KV Avadi Grid SS Hence there will be no

interruption of supply please.. 7) Approved by : SE / O / TVLM.


697 Chennai 230 KV MOSUR 230 KVAUTO TRANSFORMER NO-IV, HV -IV , LV-

IV, CT'S AND LAS only.For attending Monthly Maintenance work.

the 110 KV Thiruvallur SS availing Total Shutdown work. 2)Auto Transformers I,II,&III are

in service condition 3) Hence there will be no interruption of supply please..approved Sat, 15-Apr-2017 09:00 Sat, 15-Apr-2017 17:00 1 0 Approved


KV110 KV Northern side CT Monthly maintenance work

During the LC Period the 110 KV Anuppankulam SS will be availing total shut down.

Hence no SS will be affected.POSSIBLE Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 14:00 1 0 Approved


KV110 KV Northern side bus

For replacement of damaged moving contacts in Y

and B phases of bus side isolator No. 13 - 29 A (

Rajapalayam - I feeder) and lubrication and jumper

tightness of isolator switches work.

During the LC period 110 KV Bus coupler isolator 2 - 29 B will be opend. 110 KV PPTY

SS, APKM SS, TTL SS, APK SS & VNR SS under total shut down. 110 KV APKM - RJPM

- I feeder load will be transfer to 110 KV NNPT - ALGM feeder. RJPM - II feeder radially

fed from other end. 110 KV T.Kallupatti feeder load will be fed from 110 KV APKM -

Madurai feeder through 110 KV T. Kallupatti SS. 110 KV Capacitor Bank Br. will be Hand

Tripped Condition. Auto Tr. I, HV I , LV I BR. will be in tripped condition. Hence no SS will

be affected.


SUB TO

PASUMALAI

AUTO LOADING

Approved

700 Chennai 110 KV VILLUPURAM 230 KV 110KV Capacitor Bank-I For monthly maintenance works Capacitor bank-II will be in service 0 Sat, 15-Apr-2017 09:00 Sat, 15-Apr-2017 17:00 1 0Concurrence from

SE/O

701 Chennai 110 KV Villapuram 110 KV 110 KV GC Breaker Breaker & CT maintenance works The Villupuram SS availing total shut down for maint,wroks. approved Sat, 15-Apr-2017 09:00 Sat, 15-Apr-2017 17:00 1 0 Approved


KV230KV Singarapet Feeder breaker

Monthly maintenance workin 230KV Singarapet

feeder breaker & isolators

230KV Singarapet feeder breaker will be hand tripped and Bus side & Line side isolators

will be opened. Concurrence obtained from SE/O/Thiruvalam & SE/KEDC/Krishnagiripossible Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 14:00 1

other feeders will


703 Chennai 110 KV

BASIN

BRIDGE(GMRVASAVI)

230 KV

110 KV High Court #Annual Realy test by GRT / Metro / Chennai and

Routine maintenance work.

110 KV High court # will not be in serviece, all other 110 KV #s , 230 KV #s, Auto Tr 1,2,3

will be in service.0 Sat, 15-Apr-2017 09:00 Sat, 15-Apr-2017 17:00 1

possible 11;00 to

15;00hrsNot approved

704 Chennai 230 KV ACHRAPAKKAM 230 KV 100 MVA AUTO TR.II FOR MONTHLY MAINTENANCE WORK1.100 MVA AUTO TR.I & III Will be inservice cater the entire ss loads 2.110 kv s p koil#

and Korattur-II # Will be radial from other endapproved Sat, 15-Apr-2017 09:00 Sat, 15-Apr-2017 12:00 1 0 Approved

705 Erode 110 KV KUNDAH PH3 110KV KPH2 to Tudiyalur 1 Feeder

110KV KPH2 to Tudiyalur 1 Feeder Tower No: 01 to

14. Pre-Monsoon Inspection work(PMI) and

Maintenance work.

Bus and Line both end open condition Earth switch closed condition. postponed Sat, 15-Apr-2017 9:00 Sat, 15-Apr-2017 17:00 1to be scheduled

on a sunday

Subject to

EE/SLDC/Erode

approval

706 Chennai 110 KV KITS 230 KV 110KV Eastern bus For bus maintenance works

During the above shutdown period ;1.80MVA Auto transformer II will be in OFF

condition2.10MVA Power transformer -IV will be in OFF condition3.110KV Perumbakkam

II # loads will be transferred to Perumbakkam I #4.110KV HCL & WIPRO # will be in OFF

condition(HT consumers ) will be asked to go on DG sets110KV Buscoupler I will be in

OFF condition


707 Erode 110 KV INGUR 230 KV 110 KV Erode-Elumathur # entireTO TIGHTENING THE BOLT & NUTS IN JUMPER

AT LOCATION NO : 1 at Erode 110 KV SS

1.No SS will be affected during LC period. 2. 110 KV Kaspapettai SS has been

programmed total shut down on 15.04.2017 3.110 KV Elumathur SS supply can be fed

from Pugalur 230 KV SS


subject to the

feederbeing kept

radial from

pugalur ss end

Approved

708 Chennai 230 KV Orgadam 230 kV Auto Transformer I & II MONTHLY MAINTENANCE WORK Total Shutdown Possible Sat, 15-Apr-2017 09:00 Sat, 15-Apr-2017 17:00 1 0 Approved

709 Madurai 110 KV SRPUDUR 230 KV KDR PH I and KDR PH II Link feeder Tree clearance workDuring the LC period the 110 KV KDR PH I will be avail total shut down as approved by

EE/PHS/KDR. Hence no ss will be affected.POSSIBLE Sun, 16-Apr-2017 0:00 Sun, 16-Apr-2017 0:00 1

sub to grid

condiitonApproved

710 Chennai 230 KV KORATTUR 230 KV 100MVA AUTO TRANSFORMER - III General Maintenance work 100MVA Auto Transfomer - I & II will be inservice Possible Sun, 16-Apr-2017 09:00 Sun, 16-Apr-2017 17:00 1subject to load

conditionApproved

711 Madurai

GENERATI

NG

STATIONS

KODAIYAR PH1 GENERATOR UNIT I Exciters monthly maintenance Generator I will be shut down. 0 Sun, 16-Apr-2017 9:00 Sun, 16-Apr-2017 17:00 1

May be

programmed on

sunday

Approved

712 Madurai 110 KV KODAIYAR PH2 110 KV Bus New charger comissiningP.H-I&II will be in shut down condition. Feeder will be radial condition. Hence no SS will

be affected.POSISBLE Sun, 16-Apr-2017 9:00 Sun, 16-Apr-2017 17:00 1

DUE TO KOD 1

GENApproved

713 Erode

GENERATI

NG

STATIONS

LOWER METTUR 1

On Unit - 2 Generator, Turbine and its

internal and auxiliaries with Unit - 2 Power

Transformer complete

Note:From 16.04.2017 to 05.05.2017 (20 Days)For

the Independent Spell Annual Overhauling works of

Unit - 2.

During the L.C period the PWD demand will be met by Unit - 1 and both the 110 kv

Feeders will be inservice (110 kv MDPH # & 110 kv BPH - 2 #)possible Sun, 16-Apr-2017 0:00 Tue, 18-Apr-2017 17:00 3

schedule

approved by

director operation

and director

generation

Approved

714 Erode

GENERATI

NG

STATIONS

KUNDAH PH3 Unit II For monthly maintenance work Unit under shutdown condition , SF6 breaker open condition possible Sun, 16-Apr-2017 8:00 Sun, 16-Apr-2017 17:00 1subject to the grid


715 Chennai 230 KV KORATTUR 230 KV 230 KV Thiruverkadu-CMRL feeder Jumper Tightness at various location All other feeder will be in services To be discuss Sun, 16-Apr-2017 08:00 Sun, 16-Apr-2017 16:00 1 0 Approved

716 Chennai 110 KV Sriperumbudur 400 KV 110KV SPR-Mosur-1 feeder and entire line Quarterly maintenance and jumper tightness workDuring the period of shutdown 110kv perambakkam ss load will be transferred to 230kv

mosur ssPossible Sun, 16-Apr-2017 09:00 Sun, 16-Apr-2017 17:00 1 0 Approved


230 Kv Arasur - PGCIL 1 & 2 feeder

Breaker,CTs and line side isolator with line

entire for both Feeders.

For new line rerouting work to M/S Synfra EHT

service from 230 KV Karuvalur SS feeding by

releasing and stringing of 6 No. Zebra conductor in

the existing feederand stringing of 3 Nos. Zebra

conductor and 1 No. OPGW cable in new feeder by

TLC/Mettupalayam wing of GCC/Coimbatore.

During the line clear ,1) Concurrence obtained from 230 KV EHT consumer m/s Synfra

EHT service.2) remaining four numbers 230 KV Feeders will be in service.postponed Sun, 16-Apr-2017 9:00 Sun, 16-Apr-2017 18:00 1

occ approval not

available

Approved subject to

SRLDC approval


230 KV Eastern Bus, 230 Kv PGCIL -I & II

#s,Auto Transformer-I and IV and its

equipments AND 230 KV PT-I

For Annual Maintenance works in 230 KV Eastern

bus entire.

During the line clear ,1)230 KV PGCIL -I & II #s,Auto Transformer-I and IV will be under

Line clear.2)Concurrence obtained from 230 KV EHT consumer m/s Synfra EHT service

for supply interruption.2)Remaining four numbers 230 KV Feeders will be in service.

postponed Sun, 16-Apr-2017 9:00 Sun, 16-Apr-2017 16:00 1

occ approval not

available for the

pgcil feeders and

further two auto

trs will be out of

service

Approved subject to

SRLDC approval

719 Chennai 230 KV MANALI 230 KV 230kv Alamathy-1 feeder1.For jumpering of 230kv OH line and 230kv Cable

point in Alamathy-1 feeder @400kv GIS SS end


transferred to other endsAfter the LCa.230kv Alamathy-1 feeder will be in service via GIS

bay No-202 and 230kv line switch in Alamathy-1 feeder will be kept open at AIS SS end

To be discuss Sun, 16-Apr-2017 06:00 Sun, 16-Apr-2017 11:00 1 0 To be discuss

720 Erode 230 KV PALLADAM 230 KVAuto Transformer III and its HV ,LV side

breaker ,CT's and LAS

To carryout Monthly maintenance on equipment's by

AEE/Maintenance/Palladam

During LC period 1) other 3 Nos Auto Transformer will be in service2) Sun day holiday

load relief available3) No other sub station will be affectedpossible Sun, 16-Apr-2017 9:00 Sun, 16-Apr-2017 17:00 1

subject to the

other auto trs

loading limit

Approved

721 Erode

GENERATI

NG

STATIONS

KUNDAH PH2

UNIT-II GENERATTOR SF6 BREAKER,


ACCESSIORIES

FOR MONTHLY MAINTENANCE WORK SF6 BREAKER OFF IN CONDITION TOP AND BOTTOM BUS OPEN IN CONDITION 0 Sun, 16-Apr-2017 9:00 Sun, 16-Apr-2017 17:00 1 Wrong entry Not considered

722 Erode

GENERATI

NG

STATIONS

PUSHEP UNIT 3 MONTHLY MAINTENANCE WORKS UNIT 3 IN SHUTDOWN CONDITION possible Sun, 16-Apr-2017 9:00 Sun, 16-Apr-2017 17:00 1subject to the grid


723 Chennai 110 KV MOSUR 230 KV 110 KV SPR Feeder BREAKER & CT;s For attending Monthly maintenance work Tie opened at 230 KV MOSUR SS Possible Sun, 16-Apr-2017 09:00 Sun, 16-Apr-2017 14:00 1 0 Approved

724 Erode

GENERATI

NG

STATIONS

KUNDAH PH1 UNIT NO : 2 FOR MONTHLY MAINTENANCE WORK.. DURING THE LC PERIOD UNIT NO 2 WILL BE UNDER NOT S/B CONDITION.. possible Sun, 16-Apr-2017 8:00 Sun, 16-Apr-2017 17:00 1subject to the grid


725 Chennai 110 KV

BASIN

BRIDGE(GMRVASAVI)

230 KV

110 KV Chindadiripet # Routine maintenance work110 KV Chindadiripet # will not be in service, all other 110 KV #S , 230 KV #s , Auto TR

1,2,3 will be in service0 Sun, 16-Apr-2017 09:00 Sun, 16-Apr-2017 17:00 1

Subject to CBD

concurrenceApproved

726 Erode 110 KV KUNDAH PH3 110KV KPH 2 to Thudiyalur 1 Feeder110KV KPH 2 to Thudiyalur Feeder 1 Tower No:16

to 33Bus and Line both end open condition Earth switch closed condition. possible Sun, 16-Apr-2017 9:00 Sun, 16-Apr-2017 17:00 1

subject to the load


727 Madurai 110 KV KODAIYAR PH2 110 KV link feeder SF6 breakerMonthly maintenance of 110 KV link feeder SF6

breakerP.H-I will be shut down. POSISBLE Sun, 16-Apr-2017 9:00 Sun, 16-Apr-2017 17:00 1

May be

programmed on

sunday

Approved

728 Madurai

GENERATI

NG

STATIONS

KODAIYAR PH1 GENERATOR UNIT.I, 110KV BUS

A.ELECTRICAL- Monthly maintenance of

1)Gen.Tr.22.2 MVA-4Nos. 2)SF6 unit breaker

3)110KV LAS set 4) 110KV CT&PT 5)110KV line

switch & 6)Back washing of UGB & LGB oil

coolers.B.MECHANICAL- Monthly maintenance of

Governor oil re circulation and Governor oil cooler

back washing.

Generator-I will be shut down. POSISBLE Sun, 16-Apr-2017 9:00 Sun, 16-Apr-2017 17:00 1

May be

programmed on

sunday

Approved

729 Chennai 230 KV SPKoil230 KV 230 KV Kalpakkam feeder 1 Insulator Replacement work Possible Mon, 17-Apr-2017 09:00 Mon, 17-Apr-2017 17:00 1 0 Approved

730 Chennai 230 KV VEERAPURAM 230 KV100 MVA AUTO TRANSFORMER - I&II - One

by oneQuarterly Maintenance&OLTC Oil changing

110 KV Kits park feeder load ( 110 KV Madampakkam SS ) To be transferred to 230 KV

SS Kits parkPossible Mon, 17-Apr-2017 09:00 Mon, 17-Apr-2017 16:00 1 0 Approved

731 Erode 230 KV MTPS MTPS-I to Singarapet Feeder Monthly maintenance works Programmed LC possible Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1subject to the load



On 110KV Kodikurichi - Kadayanallur-

Nalamanaickampatti # breaker with CT and

Line Isolators.

For Monthly Maintenance work.1.110 KV Achanpudur SS,Kadayanllur SS will be radially fed from 230KV

Nalamanaickampatti SS.2.Hence No SS Will be affectedPOSSIBLE Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1 0 Approved

733 Erode 110 KV THINGALUR 230 KV110KV ERODE 2 feeder Breaker,CTs and

Line IsolatorsMonthly Maintenance Works 110KV GANDHI Nagar SS will be fed from Erode SS. postponed Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1

110 kv erode to

ingur feeder 2 lc

recommended

Subject to

EE/SLDC/Erode

approval

734 Erode 110 KV KUNDAH PH5 110KV PH5 TO PH1 # 1ANNUAL RELAY TEST WORK BY GRT WING

KUNDAH.

DURING THE LC PERIOD THE FEEDER WILL BE RADIALLY FEED FROM OTHER

END.possible Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1

subject to the load


735 Erode 110 KV Erode 110 KV110 KV ERODE - INGUR II FEEDER



OBTAINED FROM SE/EEDC/ERODE.possible Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 14:00 1

subject to the load


736 Madurai 230 KV PASUMALAI 230 KV1) 230 KV Pasumalai - Kayathar # BKR,CT

and LI only. 2)Line Entire.a)Maintenance Works of BKR & CT,LI EE / O / 400 KV KYTR has also programmed POSSIBLE Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 14:00 1

After Northern

BUS LC at

Anupankulam

Approved

737 Erode 230 KV ANTHIYUR 230 KV110 KV BARRAGE III FEEDER BREAKER

CT AND LINE SWITCHMONTHLY MAINTENANCE WORKS

DURING THE LC PERIOD 110/22KV CHENNAMPATTI SS WILL AVAIL TOTAL SHUT

DOWN. OTHER END ALSO PROGRAMMED TO AVAIL LC ON THIS FEEDER.NO SS

WILL BE AFFECTED.


subject to

chennampatty ss

availing tsd

Approved

738 Madurai 230 KV SRPUDUR 230 KVOn 100 MVA Auto Tr III, LV III, HV III breaker

& CT only.OLTC oil changing work. During the LC period Auto Tr I & II will be in service. POSSIBLE Mon, 17-Apr-2017 10:00 Mon, 17-Apr-2017 15:00 1 Sub to wind gen. Approved



feeder section between 110 KV Tenkasi SS -

110 KV Keelapavoor SS (WF)110/33KV)

1)For replacement of defective Insulator at locations

No.25&28,

During LC period, i)110 KV Tenkasi SS, 110 KV Shencottah SS,110kv kadayamSS,

Rastha SS and Papanasam Power House will be fed from 110KV Kodikurichi -Tenkasi -

Papanasam Feeder. ii)110 KV AB switch towards Keelapavoor wind form at Tenkasi will

be kept opened. iii)110 KV Keelapavoor SS (WF)110/33KV) there will be no supply and

availing monthly shutdown.


740 Madurai 230 KV AMUTHAPURAM 230 KV230/33KV Power transformer-2 HV,LV






741 Madurai 110 KV Alagarkoil230kv110KV ALKL- Karaikudy # section between

melur & thiruppathur SS.For tree clearence work

During the L.C period the feeder will be radial from kkdi up to thiruppathur and radial up

to melur from ALKL further the 110KV Thaniamangalam SS will be under total shutdown.POSSIBLE Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 16:00 1 0 Approved


KV

110 KV Anuppankulam- T.Kallupatti

feeder(spur line) section between

Erichanatham to T.Kallupatti SS.

For Tower to Tower inspection and tree cutting work

in various locations.During LC period , there will be no supply interruption. POSSIBLE. Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1

Sub to tranferring

of ASTRO AND

T.Kallupatty to

110PSQ-ANPKM

#

Approved

743 Erode 110 KV LOWER METTUR 3GC and isolator and all 110 KV Feeders.

i) For carrying out AOH works on 110 KV Common

Bus, earth pit, earth resistance measurement works.

ii) For carrying out annual relay test in 110 KV

feeders by AEE / P&C / K.R.THOPPUR.

a)On the same day, 110 KV Chennampatty SS and Koneripatti SS will be Programmed

for availing total shutdown.b)During the LC period, the Unit I and II at BPH 3 will be in

shutdown Condition for AOH Common spell.




STATION 230 KV230KV CKNI-Indbharath Feeder Entire


Maintenance worksDuring the LC Period, there will be no supply in the entire feeder. POSSIBLE Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1

Sub to

concurrance from

IND BHARATH

Approved


230 KV AUTO TRANSFORMER I HV & LV

BREAKER WITH CT,AND 110 KV THENI-

PERIYAR I# ENTIRE LINE.

FOR MONTHLY MAINTENANCE WORK AND


UTHAMAPALAYAM SS LOAD WILL BE TRANSFERRDE TO PERIYAR-THENI II #.NO

SUPPLY TO GAMESA AND REGEN KAMATCHIPURAM WIND SS.POSSIBLE Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 13:00 1

Feeder 1 sub to

concurrance from

wind generator.

Approved


KV

230KV Bus-B, its PTs, Bus Coupler CB &

CTs.For regular maintenance works.

During LC periodAll 230KV feeders and HV-I & II will be transferred to 230KV Bus-A.Bus

Coupler CB will be hand tripped for LC works in 230KV Bus-B.No supply interruption.possible Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1

subject to bus A

being in serviceApproved

747 Madurai 230 KV KARAIKUDI 230 KVOn 230/110KV Auto.Tf-2 & its allied

Equipments.For Monthly Mtc Work

During the L.C Period the Auto.Tf-2 Load will be contained other Auto.Tf-1 & 3 hence

there will be No interruption of Supply.POSSIBLE Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1

Sub to load

conditionApproved

748 Madurai 110 KV KARAIKUDI 230 KVOn 110KV KKDI- SVGA # S/B Kallal &

Madaguppatty SS.Line Replacement work.

During the Lc Period 1) 110KV Madagupatty SS & 110KV Kallal SS Under TSD.2)110KV

KKDI- SVGA #'r will be radial upto Madagupatty SS. Hence there will be No interruption of

Supply.

POSSIBLE Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1 Sub to total s/d Approved

749 Erode 230 KV MTPSII 230KV MTPS-I FEEDER GENERAL MAINTENANCE WORKS.

UNIT IN SERVICE. ALL 400KV FEEDERS KARAMADAI-I&II ,PALAVADI-I&II AND ICT-

I&II ARE IN SERVICE. ALL 230KV FEEDERS GOBI,METTUR AUTO SS AND STANDBY




750 Madurai 110 KV THIRUVARUR 230 KV110KV Thiruvarur - T(K)GTPS Express

feeder

Line Premansoon inspection and recfication work,

Breaker, CT's and Isolator maintenance work.During the LC period there will be no interruption of supply to any other substation. POSSIBLE Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1 0 Approved


230 KV

110 KV OKM-Negamam I Feeder (Breaker,

CT's & Line Switch)



During the LC period, 110KV OKM-Negamam I feeder will be kept radial from 110KV

Negamam SS. Hence, No SS will be affected.possible Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 14:00 1

subject to the

feeder being kept

radial from

negamam ss end

Approved

752 Madurai 230 KV EACHANGADU 230 KV230 KV Eachangadu-samayapuram #,

BREAKER, CT's, &LINE CVTFOR MONTHLY MAINTENANCE WORK

During the above shutdown period the 230 KV Eachangadu ss will be Radially fed from

230 kv Eachangadu- Neyveli TSI #.Samayapuram SS end is also availing LC On that

Day.

POSSIBLE Mon, 17-Apr-2017 10:00 Mon, 17-Apr-2017 17:00 1Sub to Alandur

ICT loadingApproved

753 Madurai 110 KV SEMBATTY 230 KV110KV SBT - PAsumalai# Bkr, CTS and sec.

bet SBT and Achampathu SS1. Monthly maintenance work2. Tree cutting work

During the LC period, Sithargalnatham SS availing total shutdown and the feeder will be

radial from other end upto Achampathu SS. Hence no interruption to any SS.POSSIBLE Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1 0 Approved

754 Madurai 110 KV SEMBATTY 230 KV110KV SBT - Udumalpet # Bkr, CTs and sec.

bet. SBT and Pappampatti SS.11. Monthly maintenance work2. Tree cutting work

During the CL period S.V.Patti SS is availing total shutdown the feeder will be radial from

other end upto Pappampatti SS. Concurrence obtained from other end. Hence no

interruption to any SS.

POSSIBLE Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1Sub to UDPT

concurranceApproved

755 Erode 230 KV Udumalpet 400 KV230 KV MYVADI - UDUMALPET.LINK - II

FEEDER BREAKER, CT AND LINE ENTIRE

MONTHLY MAINTENANCE WORK AND C & R

PANEL REPLACEMENT WORK BY P&CBOTH END AVAIL LC possible Mon, 17-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 4

subject to the load


756 Madurai 110 KV KAYATHAR 230 KV110Kv Kayathar-Kodikurchi Feeder Sec b/w

Kayathar &Therkupattifor defective disc replacement at various locations

During the LC period,I.Therkupatti ss will be radially fed from Kodikuruchi-Kanarpatti Tie

feeder Hence No SS affectedPOSSIBLE Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1 Sub to wind gen Approved

757 Erode 110 KV DEVIAKURICHI 230 KV 110 KV Krishnapuram Feeder Breaker ,CTs For Monthly Maintenance work 110 KV Krishnapuram Feeder radial from 230KV SS Perambalur end possible Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1

subject to the

feeder being kept

radial from

perambalur ss

Approved

758 Chennai 110 KV ARNI 230 KV110KV Arani- Santhavasal Feeder Breaker,

110KV CTs and Line isolator

For Breaker monthly Maintenance work, Breaker

Compressor oil replacement work, Line Isolator and

CT clamp Maintenance work.

During the period of Shut down the 110KV Santhavasal SS availing Total shut down.

Necessary Railway clearance will be obtained.Hence there will be no interruption of

supply.

Possible Mon, 17-Apr-2017 09:00 Mon, 17-Apr-2017 14:00 1

Subject to

concurrence of

Railways

Approved

759 Chennai 230 KV KORATTUR 230 KV 110 KV Alamathy-Periyappalyam feeder Jumper tightness at various location All other feeder will be in services Possible Mon, 17-Apr-2017 09:00 Mon, 17-Apr-2017 17:00 1 0 Approved

760 Erode 110 KV COIMBATORE 230 KV110KV Coimbatore-Arasur Feeder section

between 230 Arasur SS and 110KV Irugur SSPMI Works by AE/Lines Coimbatore

1.There will be no supply to KPR EHT Service.2.Sulur Railway EHT Service will be fed

from 110KV Arasur-Thingalur Feeder.possible Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 16:00 1

subject to transfer

of loads to 110 kv

arasur to thingalur

feeder

Approved

761 Erode 230 KV UDUMALPET 230 KV230KV MYVADI LINK II FEEDER BREAKER

&LINE ENTIRE

230KV Myvadi- Udt.Link.II Breakers, CTs & Line

entireFor C& R Panel replacement work By P&C

wing

230KV Myvadi- Udt.Link.II Breakers, CTs & Line entireFor C& R Panel replacement work

By P&C wingpossible Mon, 17-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 4

subject to the load



110 KV RANGANATHAPURAM FEEDER

BREAKER AND LINE SEC BETWEEN UDT

AND MELKARAI PATTY

FOR MONTHLY MAINTENANCE WORKSSEC BETWEEN RANGANATHAPURAM AND MELKARAI PATTY WILL BE FROM

230KVSS RANGANATHAPURAMpossible Mon, 17-Apr-2017 0:00 Mon, 17-Apr-2017 0:00 1

subject to the

feeder being kept

radial from

renganathapuram

ss end

Approved

763 Erode 230 KV METTUR AUTO 230 KV 230 KV MTPS 1-Singarapet entireJumbercone Tightness checking at MTPS 1- in

Singarapet bayProgrammed LC at MTPS 1- on 17.04.2017 possible Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 14:00 1

subject to the load


764 Erode 230 KV SINGARAPET 230 KV 230 KV MTPS # Breaker, CTs & line isolatorsTo carry monthly maintenance work by



of supplypossible Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 15:00 1

subject to the load



230KV SMPM-EACHANGADU #

Breaker,CT's , Line Isolators and entire line

portion.

Monthly Maintenance work, line Patrol work by

AE/Lines/Kallakudy.

1.During the above Shutdown Period 230KV SMPM SS will be radial from 230KV TRICHY

SS . 2.Other end Eachankadu SS also availing LC on that day. 3.Concurrence obtained

from Trichy Auto SS 4. No interruption to any other 110 KV SS.

POSSIBLE Mon, 17-Apr-2017 10:00 Mon, 17-Apr-2017 17:00 1Sub to Alandur

ICT loading

Subject to EE/SLDC/

Madurai approval

766 Madurai 110 KV SANKANERI 230 KV110KV Sankaneri-Udayathur feeder Breaker

CTS&Lineswitches.

For monthly maintenance & GRT Annual Relay

Testing purpose.

During the LC Period 110KV Udayathoor feeder Supply Radially upto NavalladySS.Hence

NO ss will be affected.POSSIBLE Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 14:00 1 Sub to wind gen Approved

767 Erode 110 KV ARASUR 230 KV110 KV Arasur Local SS GCCB and 110 KV

CB-IIIFor Total Shutdown works in Arasur local SS. During the line clear , 110 KV CB-III will be out of service. possible Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 14:00 1

subject to arasur

ss tsdApproved

768 Madurai 230 KV SRPUDUR 230 KVOn 100 MVA Auto Tr III, LV III, HV III breaker

& CT only.

a.OLTC oil changing work. b.Annual relay testing

workDuring the LC period Auto Tr I & II will be in service. 0 Mon, 17-Apr-2017 10:00 Mon, 17-Apr-2017 15:00 1 Repeat Approved

769 Chennai 230 KV manali230kv 230KV Manali - ETPS Jumper tightness. Tower to Tower inspection. All other feeder in service. Possible Mon, 17-Apr-2017 08:00 Wed, 19-Apr-2017 18:00 3 0 Approved

770 Erode 110 KV SALEM AUTO 230 KV110 KV K.R.Thoppur Feeder -II Breaker CT's

and line Isolators.Monthly Maintenance work.

110 KV K.R.Thoppur feeder - II will be radially fed from other end. 110KV Kandampatty

SS will be availing total shutdown. There will be no interruption to any SS or feeder.possible Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1

subject to

kandampatty ss

availing tsd

Approved

771 Madurai 230 KV kayathar230kv230KV Madurai feeder Main breaker (202-

52), CT and CVT onlyMonthly Maintenance work

During the LC period there will be no supply in 230KV Madurai feeder Main breaker (202-

52), CT and CVT only. hence no substation affected.POSSIBLE Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1

After Northern

BUS LC at

Anupankulam

Subject to

Normalisation of Bus

LC at Anupankulam

772 Erode 110 KV INGUR 230 KV110KV Erode II # Breaker, CTs, Isolators and

Line side IsolatorMONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 14:00 1

subject to the load


773 Erode 230 KV INGUR 230 KVAuto Transformer II and its HV & LV Breakers

MONTHLY MAINTENANCE WORKS 1.Ingur SS Total Shutdown- 30 MW2.DEPENDING UPON LOAD CONDITION possible Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 14:00 1

subject to the

other auto trs

loading limit

Approved

774 Chennai 110 KV MANALI 230 KV 110kv Manali- ETPS-2 feeder

For making T-off arrangement in 110kv cable point,

for linking of feeder to 110 kv GIS bus via GIS

Bay.No-114

a.110kv ETPS-2 feeder tie will be open at Manali and ETPS endsAfter the LC110kv ETPS-

2 feeder will be in service via T-off, Bay.No. 114 of GIS SS.Line switch of 110kv ETPS-2

feeder will be kept normally open at AIS SS end

To be discuss Mon, 17-Apr-2017 10:00 Mon, 17-Apr-2017 17:00 1 0 To be discuss

775 Chennai 110 KV MANALI 230 KV 110kv Korattur feeder

For making T-off arrangement in 110kv cable point,

for linking of feeder to 110 kv GIS bus via GIS

Bay.No-113

a.110kv Korattur feeder loads will be transferred to other endAfter the LC:110kv Korattur

feeder will be in service via T-off, Bay.No. 113 of GIS SS.Line switch of 110kv Korattur

feeder will be kept normally open at AIS SS end

To be discuss Mon, 17-Apr-2017 10:00 Mon, 17-Apr-2017 17:00 1Subject to CBD

concurrenceTo be discuss

776 Madurai 110 KV Punalkulam 110 KV

110 KV Punalkulam - Trichy feeder.(Line

portion between 110 KV Punalkulam SS and

110 KV Veeramarasanpettai SS)

For carrying out premonsoon inspection works by


During the LC period,1) this feeder will be radial from 230 KV Trichy SS upto 110 KV

Veeramarasanpettai SS, 2) 110 KV Thanjavur-Punalkulam feeder will be radial from 230

KV Thanjavur SS upto 110 KV Punalkulam SS, 3) concurrence has been obtained from

M/s.SICGILSOL Gases/Pudukudi (formerly Seva Gases) for blink operation,4) no supply

interruption to any SS.


777 Erode 230 KV karamadai230KV

i) 230/110KV AUTO II HV & LV Breakers and

CTs. ii) 110KV Karamadai BBPH II feeder

Bkr&CTs.iii) 230KV Karamadai-Kundah PH 3

feeder.iv) 230KV Karamadai-Arasur feeder.

v) 230KV Karamadai-Ingur feeder.

Item no i & ii for monthly mtce works and item no

iii,iv & v for tandelta measurements by AE/Tandelta

For item no.i) 110KV Arasur & Thudialur feeders wiil be fed radially from Arasur &

Thudialur end. ii) Total shutdown availed by Mettupalayam SS. iii-v Lc one after other

availed for Tandelta measurement.


subject to the

other auto trs

loading limit; for

the tan delta

measurements,

the possible

feeders will be

issued for lc

subject to the load

condition existing

Approved

778 Erode 230 KV KARUVALUR 230 KV110kv Karuvalur - Arash I feeder breaker with

line switch and CT'sFor monthly maintenance work

110kv paduvamplli SS total shutdown 110kv sellampampalyam and 110kv Karuvalur SS

fed from Arash 230kv SS0 Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1 invalid lc Not considered

779 Erode 110 KV KARUVALUR 230 KV110kv Karuvalur - Arasur II feeder breaker

with line switch and CTs

For monthly maintenance work and for PMI by

palladam lines

110kv paduvamplli SS total shutdown and 110kv sellampampalyam SS fed from 230kv

Arasur SS and 110kv Karuvalur SS fed from 110kv Karuvalur - Thekkalur feeder from

230kv Karuvalur SS


subject to

paduvampalli ss

availing tsd and

transfer of loads

Approved

780 Madurai 110 KV KOVILKALAPAL 110 KV Thiruvarur Express feederReplacement of poor tan delta value CTs with new

CTs.

During the LC period there will be no interruption to any SS. Other end also applied on the

same day.POSSIBLE Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1 0 Approved

781 Erode 110 KV METTUR AUTO 230 KV110KV MDPH Feeder I & MDPH II feeder one

by oneFor Monthly maintenance work

During the 110KV MDPH Feeder I LC period Feeder II will be in service.During the 110KV

MDPH Feeder II LC period Feeder I will be in servicepossible Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1

to be availed one

by one subject to

the load condition

Approved

782 Erode 110 KV PYKARA110kv GC BREAKER AND 66KV ENTIRE

BUSFOR MONTHLY MAINTENANCE WORK

66/11KV ATHIPALLI SS, CHERAMBADI SS, GUDALUR SS AND UPPATTI SS WILL

AVAIL TOTAL SHUT DOWN.possible Mon, 17-Apr-2017 8:00 Mon, 17-Apr-2017 17:00 1

subject to tsd

reliefApproved

783 Chennai 110 KV CUDDALORE 230 KVLine side isolator.


Durind the period of LC The 110 KV Chitharasur SS will be availing total shutdown. And

supply.Hence NO Interruption of SupplyConcurrence obtained from SE/O/Villupuram


784 Erode 110 KV ALIYAR 230 KV110KV ALR-SLR FEEDER No-I&II CB,CT

and line entire

1)PMI Work by JE/Lines/Pollachi and quarterly mtce

work2)Tower replacement work at LOC 33 to 36 by

erecting work by AE/TLC/UDT

During the LC period SLR PH all machine under shutdown condition possible Mon, 17-Apr-2017 8:00 Mon, 17-Apr-2017 16:00 1sph machines are

under sdApproved


KV

110 KV Capacitor Bank - II Br., CT. and line

switch only.For monthly maintenance work. During the LC period the 110 KV Capacitor Bank - II will be Hand Tripped condition. 0 Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 14:00 1 0 Approved


KV

(a) 230KV Northern Bus entire (b) 230KV

APKM - MDU feeder entire.

a)For Removal of dropper jumper of 230KV

Anuppankulam - Madurai feeder ( Augmentation of

100MVA to 160MVA Auto Transformer work) b)

Replacement of flash over disc at Loc no.255.

During the LC period, a) Auto Transformer-I, HV-I, LV-I will be under hand tripped

condition and 230KV Anuppankulam - Madurai feeder and 230KV Anuppankulam -

Kayathar feeder hand tripped condition and Auto Transformer-II & III will be fed from

230KV Anuppankulam-Sterlite source only. b) The entire feeder will be no supply.

POSSIBLE Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 12:00 1Sub to load

conditionApproved

787 Erode 230 KV METTUR AUTO 230 KV 230 kv MTPS 1- singarapet entireJumber cone Tightness checking at MTPS -1 in

Singarapet bayProgrammed lc at MTPS 1-on 17.04.17 0 Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 14:00 1 repeat of 53237 Not considered

788 Erode 110 KV LOWER METTUR 2LMBPH - 3 feeder equipment and its Isolator

and earth switch at LMBPH - 2 / Nerinjipettai

Monthly maintenance work at LMBPH - 3 feeder

equipment and its Isolator and earth switch at

LMBPH - 2 / Nerinjipettai

(i) LMBPH - 3 end will be avail common bus LC on the day.(ii) 110 kV LMBPH - 1 and KR

Thoppur feeder will be in service.(iii) Unit - 1 & 2 stand by condition depending upon the

PWD demand.

possible Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 15:00 1subject to load


789 Erode 110 KV SINGAPURAM 230 KV 110 KV Salem -I Feeder(CT,Breaker) Monthly Maintenance

1.Monthly Maintenance 110 KV Salem -I Feeder will be fed radially from salem

end.2.Auto LC at salem end is on 03.04.2017 & 15.04.2017 & 21.04.2017 only.3.There

will be no interruption to the intermediate SS.


subject to the

feeder being kept

radial from salem

ss end

Approved

790 Erode 110 KV KUNDAH PH3 110KV KPH2 to Thudiyalur 1Feeder110KV KPH2 to Thudiyalur 1Feeder Tower No:34 to

51Bus and Line both end open condition Earth switch closed condition. postponed Mon, 17-Apr-2017 0:00 Mon, 17-Apr-2017 0:00 1

to be scheduled

on a sundayrepeat of 53835

791 Erode 230 KV MTPS MTPS-I to MTPS-II Feeder Monthly maintenance works Programmed LC postponed Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1

to be rescheduled

with mtps stage 3

on 17.04.2017

Approved

792 Erode 230 KV METTUR AUTO 230 KV MTPS 1 - MTPS II- feeder entirejumbercone Tightness work in MTPS 1 Bay structure

at MTPS II endProgrammed LC at MTPS 1 - on 19.04.2017 postponed Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 14:00 1

to be rescheduled

with mtps stage 3

on 17.04.2017

Approved

793 Erode 230 KV MTPS MTPS-I to MTPH Feeder Monthly Maintenance works Programmed LC postponed Mon, 17-Apr-2017 9:00 Mon, 17-Apr-2017 17:00 1other feeders

would overload

Subject to

EE/SLDC/Erode

approval

794 Chennai 110 KV SPKoil lines 110 KV Acharapakkam feeder 1 Quertaly maintenance work Possible Tue, 18-Apr-2017 10:00 Tue, 18-Apr-2017 17:00 1 approved Approved

795 Erode 230 KV THINGALUR 230 KV230KV INGUR feeder breaker,CTs and Line

IsolatorsMonthly Maintenance Works Other end also availing LC postponed Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1

230 kv salem to

mtps feeder lc

recommended

Approved

796 Erode 230 KV UNJANAI 230 KV1. 230KV & 110KV BUS SECTION

BREAKER ,CT'S ONLYFOR MONTHLY MAINTENANCE WORK

DURING THE L.C PERIOD,1.AUTO TRNO :I LOADS WILL BE FED BY SALEM 400KV

230KV FEEDER AND AUTO TR NO:II WILL BE FED BY P.CHANTHAI FEEDER.2.

NALLUR AND JEDARPALAYAM 110KVSS LOADS WILL BE BY P.CHANTHAI 230KVSS.

postponed Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1equal division of

loads not feasible

Subject to

EE/SLDC/Erode

approval

797 Erode 230 KV INGUR 230 KV and Line side Isolator and 230 KV main Bus

& Auxillary Bus switch

MONTHLY MAINTENANCE WORKS AND ALSO

NEW LAS ERECTION WORKOTHER END ALSO LC AVAIL ON THAT DAY postponed Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 14:00 1

230 kv salem to

mtps feeder lc

recommended

Approved

798 Madurai 110 KV THIRUVARUR 230 KV

110KV T(K)GTPS - THIRUVARUR FEEDER

(VIA: 110KV ULLIKKOTTAI SS, 110KV

OKKANADU KEELAIYUR SS & 110KV

MANNARGUDI SS), LINE PORTION

BETWEEN 110KV OKKANADU KEELAIYUR

SS TO 110KV MANNARGUDI SS.


AE/LINES/ PATTUKKOTTAI.

1) DURING THE LC PERIOD 110/11KV OKKANADU KEELAIYUR SS, 110KV

ULLIKKOTTAI SS RADIALLY FED FROM T(K)GTPS AND 110KV MANNARGUDI SS

RADIALLY FED FROM 230KV THIRUVARUR. 2) NO INTERRUPTION TO ANY

SUBSTATION.

POSISBLE Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1

DUE TO SEC BW

TVR AND

Mannarkudi LC

Approved

799 Madurai 110 KV ABANPapanasam-KYTR# (tied with kodikurichi

ss)Breaker with CTFor carry out monthly maintenance work

Present PWd Demand is 200C/S.During the LC period, the Papanasam-KYTR# (tied with

kodikurichi ss) will be radial from other end and 110KV PPM-O.T patti# will be in service.

Hence no ss will be affected please.

POSSIBLE Tue, 18-Apr-2017 10:00 Tue, 18-Apr-2017 12:00 1To be tied with

KayatharApproved

800 Madurai 230 KV VEERANAM 230 KVPower transformer -III,HVBR-III,LVBR-III &

33KV Feeders of Micon-I,Micon-II,Micon-VIQuarterly & Monthly maintenance work

During the lc period there will be no supply in entire Power transformer -III & 33kv feeders

and concurrence obtained from SE/NCES/TIN.POSSIBLE Tue, 18-Apr-2017 10:00 Tue, 18-Apr-2017 17:00 1 sub to wind gen Approved

801 Madurai 230 KV KAYATHAR 230 KVOn 230KV Kayathar - TTPS-I feeder breaker

with CT & entire line

a)For monthly maintenance work. b) Tower to tower

inspection workDuring the LC period, there will be no supply in the entire feeder. Hence no SS affected. POSSIBLE Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1 Sub to TTPS gen Approved

802 Madurai 230 KV KAYATHAR 230 KVOn 230KV Kayathar - TTPS-II feeder breaker

with CT & entire line

a) For Monthly Maintenance work b) Tower to tower

inspection workDuring the LC period, Other end also availing the LC. Hence no SS affected. POSSIBLE Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1 Sub to TTPS gen. Approved


KV400KV BUS-2 Entire Monthly maintenance work

During the LC Period 1.400KV Bus-2 in OFF condition,2.400KV SPR Feeder breaker and

400KV NCTPS-Stg 2-feeder-1 breaker in trip condition, Supply will feed through Tie-1 and

Tie-2 Breakers Respectively3.Alamathi-2 feeder 1 in OFF condition,5.HV-2 Breaker and

HV-4 Breaker in Trip condition,supply will feed through Tie-3 and Tie-4 for Auto

Transformers 2&4.

Possible OCC


804 Erode 110 KV KUNDAH PH5 110KV PH5 TO PH1#2ANNUAL RELAY TEST WORK BY GRT WING

KUNDAH

DURING THE ABOVE LC PERIOD THE FEEDER WILL BE RADIALLY FEED FROM

OTHER END..possible Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1

subject to the

feeder being kept

radial from the

other end

Approved

805 Erode 110 KV Erode 110 KV110 KV CAPACITOR BANK II BREAKER,CT

AND ITS CELLSMONTHLY MAINTENANCE WORK


OBTAINED FROM SE/EEDC/ERODE.approved Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 14:00 1

subject to the

voltage profile in

the grid

Approved

806 Erode 110 KV ANTHIYUR 230 KV110KV Anthiyur-Barrage PH-III feeder

breaker and CT only.For monthly maintenance of Breaker and CT

During the LC period 110KV Anthiyur-Barrage PH-III feeder will be kept in radial condition

from Barrage PH-III end.Hence no SS will be affected.postponed Tue, 18-Apr-2017 0:00 Tue, 18-Apr-2017 0:00 1

llc already applied

for 17.04.2017

Subject to

EE/SLDC/Erode

approval

807 Madurai 110 KV PASUMALAI 230 KV110 KV Pasumalai - Kinnimangalam (Theni)

# - I BKR & CT,LI only.Maintenance Works of BKR & CT,LI EE / O / Kinnimangalam has also programmed POSSIBLE Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 14:00 1

Sub to Pasumalai

Auto LoadApproved


On 110KV Kodikurichi-Alangulam-

Kannarpatty # section between

110KVKeelapavoor SS - 110 KV

Keelaveeranam SS- 110KV Alangulam SS

(i)For Replacement of defective Disc at location

No:4, and rectification of Jumper Bolt at loc No : 17

A & 20

During LC period, POSSIBLE Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1 Sub to wind gen. Approved

809 Erode 110 KV GOBI 230 KV110 KV KAVUNDAPADI FEEDER BREAKER

AND CT'S WITH LINE SWITCHFOR MONTHLY MAINTENANCE WORK

SUPLY TO 110 KV KAVUNDAPADI SS MAY FED FROM 230 KV THINGALUR SS,NO

OTHER SS WILL AFFECTEDpossible Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1

subject to the

feeder being kept

radial from

thingalur ss end

Approved

810 Madurai 230 KV PUGALUR 230 KVAuto transformer III, HV III and LV III

Breaker,CT's andLAS only.For Monthly maintenance Work .

During the L.C Period HV III and LV III are tripped condition.110KV Veppampalayam SS

and 110KV Thanthonimalai SS are proposed total shutdown.There is no interruption to

any SS.load contain with in two auto transformer(I &II)

POSSIBLE Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1Sub to load

conditionApproved


1. 110KV UNJANAI -NALLUR 110KV

FEEDER BREAKER, CT'S AND LINESIDE

ISOLATOR ONLY.2. 110KV UNJANAI -

T.GODE FEEDER BREAKER, CT'S AND

LINESIDE ISOLATOR ONLY.3. AUTTO TR

NO :II AND IT'S BREKER & CT'S ONLY.

FOR MONTHLY MAINTENANCE WORK AND GRT

ANNUAL RELAY TESTING WORK IN AUTO TR NO

:II AND IT'S DUE FROM 12/2016

1. NALLUR AND T.GODE 110KVSS AVAILING TOTAL SHUTDOWN2. AUTO TR NO :I

WILL CATER THE STATION LOADS.possible Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1

subject to the tsd


812 Madurai 230 KV Alagarkoil230kv100MVA AUTO II ,HV,LV BREAKER

,CT&LAS onlyfor monthly maintenance work

During the L.C period another one 100MVA AUTO I will be service further 110KV

THIRUPPALAI ,& Samayanallur SS will be under total shutdown, further if necessary the

110KV ALKL-SMPTY 2 # Tie will be opened at ALKL end,hence there will be no



conditionApproved

813 Madurai 110 KV ALAGARKOIL 230 KV 110KV ALKL-PSQ 2 # breaker with CT only for monthly maintenance work

During the L.C period the feeder will be radial frompasumalai end further thiruppalai SS

will be under total shutdown, hENCE THERE WILL BE NO INTERRUPTION OF SUPPLY

PLEASE.

POSSIBLE Tue, 18-Apr-2017 12:00 Tue, 18-Apr-2017 15:00 1Sub to Pasumalai

Auto LoadingApproved


STATION 230 KV

110 KV Kinnimangalam- Theni - II feeder

section between Kinnimangalam to

Kanavillaku SS.

For tower to tower inspection and Tree cutting work

in various location.

During the LC period, The 110 KV Aundipatti SS Load transferred to 110 KV

Kinnimangalam- Theni - I # and Elumalai 110 KV Ss and Chinnakattalai 110 KV SS

availing total shut down. Hence , There is no supply interruption at any other ss.


815 Madurai 230 KV VALUTHUR 230 KV Auto Transformer III.For attending Auto Transformer III HV,LV breakers,

it's CT's and isolators Monthly maintenance work.During the LC period Auto Transformer I & II will be in service POSSIBLE Tue, 18-Apr-2017 10:00 Tue, 18-Apr-2017 17:00 1 0 Approved


TTY 230 KV

230KV/110KV AUTO TRANSFORMER-I,HV-I

BREAKER WITH C.T,LV-I BREAKER WITH

C.T,110KV ALANGULAM FEEDER

BREAKER WITH C.T & 110KV

RAJAPALAYAM FEEDER BREAKER WITH

C.T

FOR MONTHLY MAINTENANCE WORK

DURING THE L.C PERIOD 110KV ALANGULAM,110KV RADDIAPATTI AND 110KV

RAJAPALAYAM SS WILL BE AVAILING TOTAL SHUT-DOWN ON THAT DAY.NO SS

WILL BE AFFECTED.

POSSIBLE Tue, 18-Apr-2017 10:00 Tue, 18-Apr-2017 17:00 1 Sub to total s/d Approved

817 Madurai 230 KV then I 230 KV230 KV AUTO TRANSFORMER III HV& LV

BREAKER WITH CT.FOR MONTHLY MAINTENANCE WORK.

MONTHLY MAINTENANCE WORK.THE STATION LOAD WILL BE MANAGED OTHER

TOW AUTO TRANSFORMERS.POSSIBLE Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 13:00 1 0 Approved

818 Madurai 230 KV kinnimangalam 230 KV 110KV KNMLM - PSQ 1 # Monthly maintenance works for breaker and CT There will be no supply in the entire feeder POSSIBLE Tue, 18-Apr-2017 14:00 Tue, 18-Apr-2017 17:00 1Sub to Pasumalai

Auto LoadApproved

819 Madurai 110 KV kinnimangalam 230 KV 110KV KNMLM -THENI II Monthly maintenance works for Breaker and CT

The feeder will be radial from theni SS upto Ganavilakkuu SS. Andipatty SS will change

over to Theni I feeder,110KV Chinnakatalai,Elumalai SS availing total shutdown. Line LC

also programmed by Lines /Ckni on Theni II # section between kanavilakku SS and

KNMLM.



110KV THENI-KINNIMANGALAM II #

SECTION BETWEEN K.VILAKKU SS AND

KINNIMANGALAM SS

LINE MONTHLY MAINTENANCE AND

PREMONSOON INSPECTION WORKS

DURING THE LC PERIOD 110KV K.VILAKKU , CHINNAKATTALAI,ELUMALAI SS WILL

BE UNDER SHUTDOWN AND 110KV ANDIPATTY LOADS MAY BE TRANSFER TO

110KV THENI- KINNIMANGALAM I FEEDER



KV110KV Bus Coupler CT,Breaker Monthly maintenance work

Auto Transformer-1 will be manage 110KV BKB-1# and Sankar-I# Load and Auto

Transformer -II will be manage The 110KV Sankari-II#,Barrage-IV # and Thevur # loadpossible Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1

subject to the



230 KV110KV RNPM - SBT III # Br,CT's Monthly Maintenance works

During LC period the feeder will be radial fed from SBT upto RNPM SSIntermediate SS

110KV Vedasandur SS Avail total shutdown.POSSIBLE Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 14:00 1 0 Approved

823 Madurai 110 KV TRICHY 230 KV CTs , line isolator and line portion between

230 KV, Trichy SS and 110 KV Mathur SS.

a) For monthly maintenance works. b) Pre monsoon

inspection

During the LC period , a) 110KV Trichy - Punalkulam feeder will be radially fed from

Punalkulam 110 KV Grid SS upto 110KV Mathur SS. b) 110 KV Punalkulam feeder line

switch at 110 KV Mathur SS towards 230 KV Trichy SS will be kept open. c) 110KV

Mathur SS also availing total shutdown. d) Necessary concurrence obtained from other

end 230KV Tanjore SS. e)All other 110KV feeders will be In tied condition. f) No

interruption of supply to any of the SS.

POSSIBLE Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 16:00 1Sub to Tanjore

AUTOApproved


230 KV

110 KV OKM-Negamam II Feeder (Breaker &

CT's)

For annual relay testing work by GRT wing and


During the LC period, 110KV OKM-Negamam II feeder will be kept radial from 110KV

Negamam SS. Hence, No SS will be affected.possible Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 14:00 1

subject to the

feeder being kept

radial from

negamam ss end

Approved

825 Chennai 230 KV TONDIARPET 230 KV50 MVA POWER TRANSFORMER-II &33 KV

TPT-I FEEDERFOR ROUTINE MAINTENANCE WORKS

DURING THE PERIOD OF SHUTDOWN , 50 MVA POWER TRANSFORMER-II WILL

NOT BE IN SERVICE 33 KV TPT-I FEEDER LOAD TO BE TRANSFRRED TO

ALTERNATE FEEDING.

Possible Tue, 18-Apr-2017 09:00 Tue, 18-Apr-2017 14:00 1Subject to CBD

concurrenceApproved

826 Madurai 110 KV SEMBATTY 230 KV110KV SBT- Alagarkovil II # sec. bet.

Kosavapatti and V.K.PattiTree cutting work

During the LC period the # will be radial from SBT upto Kosavapatti and radial from other

end upto V.k.Patti. (Concurrence obtained from M/s Ambika cotton mills)POSSIBLE Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1 0 Approved

827 Erode 230 KV DEVIAKURICHI 230 KVBreakers and CTs

For Monthly Maintenance workAuto Transformer I will be in service. 110 KV Deviakurichy-Singipuram feeder I and II will

be kept radial from Singipuram 230kv ss endpossible Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1

subject to the

other auto tr

loading limit

Approved

828 Chennai 400 KV Thiruvalam 400 KVICT - I, 230KV S.P.Koil feeder & 230KV

Thiruvalam Link- I feederTandelta testing for ICT-I & 2 Nos.230 kv feeder CTs

1)ICT- I in off condition 2)ICT- II in service for 230Kv feeder loads 3)230Kv Singarapet

feeder may be hand tripped if load on ICT-II reached above 280 MW4)230kv S.P.KOIL

FEEDER & 230kv Thiruvalam Link-I feeder kept in OFF condition after ICT- I put in to

service 5)400KV Alamathy -I feeder in service from its main breaker thro 400KV Bus-I

Possible (One

by One)Tue, 18-Apr-2017 09:00 Tue, 18-Apr-2017 17:00 1 0 Approved

829 Chennai 110 KV ARNI 230 KV110KV Arani- Kannamangalam Feeder

Breaker,110KV CTs and Line isolator



During the Period of Shut down the 110KV Kilpallipet SS and 110KV Sathumadurai SS

are availing Total Shut down. Hence there will be no interruption of SupplyPossible Tue, 18-Apr-2017 09:00 Tue, 18-Apr-2017 14:00 1 0 Approved

830 Chennai 110 KV KORATTUR 230 KV 110 KV Alamathy-Periyappalyam feeder Jumper tightness at various location 110 KV Periyappalyam SS will be fed from 230 KV Gummidipoondi SS 0 Tue, 18-Apr-2017 08:00 Tue, 18-Apr-2017 16:00 1Already approved

in 17th April 2017Approved


230 KV

On 230/110 KV Auto-I, HV-I and LV-I

breakers with CTs and LAS only.For monthly maintenance work.

Â During the LC period, Auto Transformer II will be in service and there will be no

interruption in supply please.

NOT


Due to Auto

Loading:

programmed

along with total

s/d

Not approved

832 Madurai 230 KV KADALANGUDI 230 KV 230KV Kadalangudy- PPN I feeder entire

1)Line inspection and rectification work 2)Main II

distance protection relay fixing work at Kadalangudy

end.

No interruption to any SS. All other feeders will be in tied condition. POSSIBLE Tue, 18-Apr-2017 10:00 Tue, 18-Apr-2017 17:00 1 0 Approved

833 Madurai 400 KV kamuthi 400 KV Kanarpatty 400/110 KV ICT -III MONTHLY MAINTENANCE WORK NO FEEDER AFFECTED IN 110 KV SIDE POSSIBLE Tue, 18-Apr-2017 10:00 Tue, 18-Apr-2017 17:00 1App in 129

occ/172Approved

834 Chennai 230 KV Sriperumbudur 400 KV 230KV SV Chatram-Sipcot feeder entire line Line patrol and jumper tightness work During the period of shutdown 230kv spr-sipcot feeder will be in service Possible Tue, 18-Apr-2017 09:00 Tue, 18-Apr-2017 17:00 1 0 Approved

835 Chennai 230 KV ACHRAPAKKAM 230 KV230/110,100MVA AUTOTANSFORMER-II

WITH HV AND LV BREAKER AND CT'STO CARRYOUT MONTHLY MAINTENANCE WORK

1.100 MVA AUTOTRANSFORMER-I WILL BE IN SERVICE.2.110KV ACK-VILLUPURAM

I&II FEEDER WILL BE RADIALLY CHARGED FROM OTHER END.3.110KV ACK-

VANDAVASI FEEDER WILL BE RADIALLY CHARGED FROM OTHER END.4.110KV

ACK-SP KOIL I&II FEEDER WILL BE RADIALLY CHARGED FROM OTHER END.




other end.postponed Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1

110 kv okm to

negamam feeder

lc recommended

Subject to

EE/SLDC/Erode

approval

837 Chennai 230 KV

SPR

SIPCOT(MAMBAKKAM)

230 KV

100MVA, 230/110 KV Auto Transformer-II -

HV & LV Breakers and Current Transformer

only


i)The 100MVA Auto Transformer-II is feeding load only to the 110KV GC of 230KV

SIPCOT Mambakkam SS.ii)The 110KV GC load of 230KV SIPCOT Mambakkam SS will

the entire 11KV and 33KV side, for monthly maintenance works.


838 Erode 230 KV SINGARAPET 230 KV230 KV Tiruvannamalai # Breaker & CTs &

line isolators




of supplypossible Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 15:00 1

subject to sldc

chennai

concurrence

Approved

839 Madurai 230 KV SRPUDUR 230 KV a) On 110KV SRP - SNRI # breaker & CT . Annual relay testing workDuring the LC period 110 Kv Sanganeri # will be radial from Sanganeri upto SRPudur SS

exclusivePOSSIBLE Tue, 18-Apr-2017 10:00 Tue, 18-Apr-2017 14:00 1

SUB TO WIND

GENApproved

840 Madurai 230 KV SANKANERI 230 KV230/33KV PowerTransformer-I HV&LV

Breakers,CTs only


Testing.

During the LC Period PowerTransformer-I will not beinservice.PowerTransformer-II&III

willbe Carriedout the EntireLoad.POSSIBLE Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 14:00 1

SUB TO WIND

GENApproved

841 Erode 230 KV ARASUR 230 KV 230 KV Arasur - PUSHEP feeder Br,CTsFor PMI Works , Annual relay testing works by P &

C wing /Thudialur and Monthly maintenance workDuring the LC Period other 5 Nos of 230 KV Feeders will be in service possible Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1

subject to the load


842 Madurai 230 KV kayathar230kv230Kv vellapaneri feeder main breaker (210-

52), CT and CVTMonthly Maintenance work

During the LC period there will be no supply in 230Kv vellapaneri feeder main breaker

(210-52), CT and CVT only. hence no substation affected.POSSIBLE Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1 Sub to wind gen Approved


KV230KV Sulurpet feeder bay

Monthly maintenance work , CT cmamp and bolt

nuts replacement work

During the period of shut down the 230KV Sulurpet (inter State ) feeder Tie open at

230KV Gummidipoondi SS end and concurance to be obtained from OD/230KV SS

Sulurpet

Possible OCC



KV

1.110 KV Samalpatty feeder breaker,CTs,

Line switch 2.Auto Transformer - I with HV- I

Breaker and CTs & LV- I Breaker CTs.

Carryout Monthly SS Maintenance works by

maintenance wing and GRT Relay testing Auto

Transformer - I

110 KV Pochampally SS, 110 KV Uthangarai SS availing Total Shutdown Total Relief : 35

MW, the Station load will Managed by keeping Auto Transformer II& III and also 230 KV

Shoolagiri and Mettur Feeder, 1 No Grid feeder in service and SSREL Supply fed through

230 KV Singarapet SS


subject to the tsd

relief being

realized

Approved


110 KV Ponnapuram - Ingur I # Breaker, CTs

and Line up to S/S of 110KV Selampalayam

SS.

For annual relay test by P&C WING / UDT & Monthly

Maintenance works.

1. 110KV KUNDADAM & UTHIYUR SS WILL BE AVAIL TOTAL SHUTDOWN ON

18.04.2017,2. HENCE IT IS EXPECTED THAT THE LOADS WILL BE WITH IN THE

LIMIT TO KEEP 110KV PNPM-INGUR-I # RADIAL FROM 230KV INGUR SS UP TO

SELAMPAYAM SS,3. HENCE NO SS WILL BE AFFECTED


subject to the tsd

relief being

realized

Approved


110 KV Ponnapuram - Ingur II # Breaker,

CTs and Line up to S/S of Kulathupalayam

SS


Maintenance works.

1. 110KV KULATHUPALAYAM, MUTHUR & RASATHAVALASU SS WILL BE AVAIL

TOTAL SHUTDOWN ON 18.04.2017,2. HENCE IT IS EXPECTED THAT THE LOADS

WILL BE WITH IN THE LIMIT TO KEEP 110KV PNPM-INGUR-II # RADIAL FROM

230KV INGUR SS UP TO KULATHUPALAYAM SS,3. HENCE NO SS WILL BE

AFFECTED


subject to the tsd

relief being

realized

Approved

847 Erode 230 KV karamadai230KV230KV Karamadai-Karuvalur feeder breaker&

CTsfor monthly maintenance works. LC programmed at other end also. possible Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 14:00 1

subject to the load


848 Madurai 110 KV PERAMBALUR 230 KV110KV Kallakudy-I(Thuraiyur) feeder Breaker

CT's onlyFor monthly maintenance work

During the above LC period1) 110KV Thuraiyur Feeder Loads will be transfer to 110KV

Perambalur -II Feeder of Kallakudy Grid SS.POSSIBLE Tue, 18-Apr-2017 10:00 Tue, 18-Apr-2017 15:00 1 0 Approved

849 Erode 230 KV karuvalur230kv230kv Karamadai feeder breaker CTs LAS

and it's line switch


palladam lines230kv PGCIL feeder will be in service possible Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1

subject to the load


850 Madurai 110 KV Thanjavur 110 KV110kv TJR-Thiruvarur feeder Br and its line

isolatorFor monthly maintenance work

During the LC period there will be no interruption of supply to any ss,110KV TJR-TVR

Feeder will be radially fed from 230KVss Thiruvarur upto 110kv URBAN SS/TJR,110KV

URBAN SS TOTAL S/D Programmed on the same day


conditionApproved


KV

1. 230 KV Tiruvannamalai - Singarapet #,

Breaker, CT's and Line Isolator2. 110 KV

Tiruvannamalai - Thandrampet #, Breaker,

CT's and Line Isolator.


During the period of L/C time,1. 230 KV T.V.Malai - Singarapet # will be OFF condition,2.

Other 2 Nos 230 KV T.V.malai - Neyveli & Villupuram feeders will be in service.3. 110 KV

Thandrampet SS availing total S/D. Hence there is no interruption of supply please.

Possible Tue, 18-Apr-2017 09:00 Tue, 18-Apr-2017 17:00 1Separate entry is

not thereApproved

852 Chennai 230 KV CUDDALORE 230 KV& 230KV TAQA # one by one)

GCC/Trichy wing work - 2 Feeder Bay extension for

Ulundurpet and Villupuram Dropper and Jumper

work.Take off tower conductor deviation work

Durind the period of LC All the loads will be transferred to 230 KV BUS A . Bus coupler

under tripped condition .Hence NO Interruption of SupplyConcurrence obtained from

SE/O/Villupuram

Possible Tue, 18-Apr-2017 09:00 Wed, 19-Apr-2017 17:00 2 0 Approved

853 Chennai 230 KV CUDDALORE 230 KV230KV Cuddalore- Neyveli TS-1 feeder

Breaker ,CT, with Line isolatorFor monthly maintenance works

Interruption of SupplyConcurrence obtained from SE/O/VillupuramPossible Tue, 18-Apr-2017 09:00 Tue, 18-Apr-2017 17:00 1 0 Approved

854 Chennai 230 KV CUDDALORE 230 KV 230 KV Neyveli TSII-KadalangudyFor checking jumper tightness at railway crossing

location.347 -348

Durind the period of LC 230 KV Kadalangudy SS will be fed from 230 KV Thiruvarur

SSHence NO Interruption of SupplyConcurrence obtained from SE/O/VillupuramPossible Tue, 18-Apr-2017 09:00 Tue, 18-Apr-2017 17:00 1

Subject to grid

conditionNot approved


110 KV Arani - Kanamangalam feeder in

between 110 KV Kilpalipet and 110 KV

Thorapadi SS.

For replacement of defective disc at Loc 36.

During the period of LCi. 110 KV Arani - Kanamangalam feeder line LC in between from

110 KV Kilpalipet and 110 KV Thorapadi SS. ii. The 110KV Kilpalipet SS & 10KV

Sathumadurai SS are availing total shutdown.Hence there will be no interruption of supply

please.


856 Erode 230 KV PUSHEP 230 KV PUSHEPH - ARASUR # MONTHLY MAINTENANCE WORKS230 KV PUSHEPH - ARASUR # IN TRIPPED CONDITION,230 KV LINE & BUS

ISOLATORS IN OPEN CONDITIONpossible Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1

subject to the load


857 Chennai 110 KV Ulundurpet 230 KV 110KV Ko-Poovanur feeder. Total shutdown maintenance work. 110KV Ko-Poovanur SS Total shudown maintenance work. Possible Tue, 18-Apr-2017 09:00 Tue, 18-Apr-2017 17:00 1 0 Approved

858 Erode 110 KV ALIYAR 230 KV110KV ALR-NGM FEEDER CB,CT&LINE

AND POY-NGM FEDER LINE ENTIRE

1)PMI Work by JE/Lines/Pollachi and Monthly mtce

work2)Muthur LILO tower Erection workDuring the LC period pollachi ss under shutdown condition possible Tue, 18-Apr-2017 8:00 Tue, 18-Apr-2017 16:00 1

subject to pollachi

ss tsd and the

load condition

existing after that

Approved

859 Chennai 230 KV MOSUR 230 KV For attending Monthly Maintenance worki. 230 KV Athipattu and Thiruvalam Feeder in service ii. All 110 KV Feeders in Service iii.

Hence there will be no interruption pleasePossible Tue, 18-Apr-2017 09:00 Tue, 18-Apr-2017 14:00 1 0 Approved


KV

110 KV APKM- Rajapalayam - II feeder Br.,

CT. and line switch only.

a) For monthly maintenance work. b) earth wire cut

rectification work at Loc. No. 2 to 10 of 110 KV

Reddiapatti LILO.

During the LC period the 110 KV Reddiapatti, Rajapalayam, Alangulam SS under total

shut down. Hence no SS will be affected.POSSIBLE Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 14:00 1 0 Approved


KV

110 KV Nallamanaicken patti - Rajapalayam

feeder entire.

For loop jumper will be provided at Loc. No. 5 of

Rajapalayam spur line (work will be executed by TLC

wing)

During the LC period the 110 KV Rajapalayam SS under total shut down. Hence no SS

will be affected.

NOT

POSSBLETue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 14:00 1

Reason for

looping at loc.5

not mentioned.

Approval copy.

Subject to Deviation

Approval

862 Erode 110 KV KUNDAH PH3 110KV KPH2 to Thudiyalur 2 Feeder

110KV KPH2 to Thudiyalur 2 Feeder Tower No:01 to

12 Pre-Monsoon Inspection work(PMI) and

Maintenance work.

Bus and Line both end open condition Earth switch closed condition. postponed Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1to be scheduled

on a sunday

Subject to

EE/SLDC/Erode

approval


KV

110 KV APKM-KYTR # section between

APKM-KOVILPATTI & NSPM -KYTR feeder

section between Vijayapuri ss to Kayathar

SS.

Dismantling of existing loc: 296 T - Off arrangement

and stringing permanent connectivity to the

Kovilpatti Railway traction SS.

During the LC period 110 KV APKM - KYTR feeder will be radially fed from other end upto

Kovilpatti SS. 110 KV NSPM - KYTR feeder will be radially fed from NSPM SS upto

Vijayapuri SS, and KYTR end will be Hand Tripped condition. Hence no SS affected.


864 Chennai 230 KV Orgadam 230 kV 230 KV Bus B MONTHLY MAINTENANCE WORK Possible Tue, 18-Apr-2017 09:00 Tue, 18-Apr-2017 17:00 1 0 Approved

865 Erode 230 KV KARUVALUR 230 KV230kv Karamadai feeder breaker CTs LAS

and it's line switch


palladam lines230kv PGCIL feeder will be in service postponed Tue, 18-Apr-2017 9:00 Tue, 18-Apr-2017 17:00 1

230 kv kph 4 to

thudiyalur lc

recommended

Approved

866 Madurai 110 KV KAYATHAR 230 KV110 KV Kayathar - Thalaiyuthu Express #

Breaker with CT onlyFor Monthly Maintenance work During the LC period Other end also avails LC Hence No SS affected POSSIBLE Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1

Due to 110 KYR-

Gangaikondan-

Thlaiyuthu # lc

Approved

867 Chennai 230 KV SPKoil lines 230 Veerapuram Feeder Quertaly maintenance work Possible Wed, 19-Apr-2017 10:00 Wed, 19-Apr-2017 17:00 1 approved Approved

868 Chennai 230 KV SPKoil 230 KV Kalapakkam feeder 2 Quartely Maintenance Work Pending Wed, 19-Apr-2017 09:00 Wed, 19-Apr-2017 17:00 1 Approved

869 Madurai 230 KV VEERANAM 230 KV230kv veeranam - kodikurichi # HVBR,CT &

Line switchQuarterly & Monthly maintenance work

During the lc period there will be no supply in entire 230kv kodikurichi feeder and

concurrence obtained from SE/NCES/TIN.POSSIBLE Wed, 19-Apr-2017 10:00 Wed, 19-Apr-2017 17:00 1

Sub to 230 CKNI-

AMPM#&230CKNI-

NLMPT# in tied

condition.Sub to

wind gen

Approved Subject to

wind Generation

870 Madurai 230 KV KODIKURICHY 230 KV230KV Veeranam # breaker with HV breaker ,

CT and all Isolators .Monthly Maintenance work

1EE/O /Veeranam has also applied LC on 230kv veeranam breaker on the same

day(12.04.2017)2Hence No SS Will be affectedPOSSIBLE Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1

Sub to 230 CKNI-

AMPM#&230CKNI-

NLMPT# in tied

condition.sub to

wind gen

Approved

871 Erode 110 KV LOWER METTUR 1110 kv BPH - 1 to DPH Feeder, Line side

isolator and Earth switch

Monthly maintenance works in Feeder equipment

and its isolator and Earth switch

(a) during the above L.C period Unit - 2 Individual spell and Unit - 1 will be standby

condition.(b) The other end DPH applied L.C on that day on 19.04.2017(c) 110 kv BPH -

1 to BPH - 2 Feeder will be inservice.



872 Chennai 230 KV VEERAPURAM 230 KV 230KV S.P KOIL # Quarterly Maintenance 110 KV S.P.Koil Feeder I & II kept tied condition Possible Wed, 19-Apr-2017 10:00 Wed, 19-Apr-2017 14:00 1 0 Approved

873 Madurai 230 KV VEERANAM 230 KV230KV Veeranam - Abishegapatty Feeder

HVBR, CT and line switchQuarterly & Monthly maintenance work

During the lc period there will be no supply in entire 230KV Veeranam - Abishegapatty

feeder and concurrence obtained from SE/NCES/TIN.POSSIBLE Wed, 19-Apr-2017 10:00 Wed, 19-Apr-2017 17:00 1

App in 129

occ/152Approved

874 Chennai 400 KV Alamathy 400 KV400/110 KV ICT#2 HV Tie Breaker only

1(1)52

For CT Tandelta testing and isolator allignment

work.

400/110 KV ICT#2 (200 MVA) will be in service via HV Main Circuit breaker.Hence No

interuption.

Possible OCC

Appd. 129/Wed, 19-Apr-2017 10:00 Wed, 19-Apr-2017 17:00 1 0 Approved

875 Madurai 110 KV KODIKURICHY 230 KV110KV Kayathar feeder breaker with CT and

Line IsolatorsFor monthly maintenanace work

1 110kv Keelapavoor SS,Keelaveeranam ss will be Radially fed from 110kv kayathar

SS.2 Hence, No SS will be affected.POSSIBLE Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1 sub to wind gen Approved

876 Erode 110 KV THINGALUR 230 KV110KV KAVUNDAPADI feeder Breaker,CTs

and Line IsolatorsMonthly Maintenance Works No SS will be affected possible Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1

subject to

kavunthapady ss

being fed from

gobi ss

Approved


KV

200MVA,400/110KV AUTO TRANSFORMER-

3Monthly maintenance work

During the LC Period Auto Transformer-3 in OFF condition and Auto Transformer -4 will

cater the load of Auto Transformer-3 without interruption.

Possible OCC


878 Erode 110 KV KUNDAH PH5 110KV PH5 TO SANDINALLAH #ANNUAL RELAY TESTING WORK BY GRT WING

KUNDAH


OTHER END.possible Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1

subject to the load


879 Madurai 110 KV PASUMALAI 230 KV110 KV Pasumalai - Kinnimangalam (Theni)

# - 2 BKR & CT,LI only.Maintenance Works of BKR & CT,LI EE / O / Kinnimangalam has also programmed POSSIBLE Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 14:00 1

Sub to Pasumalai

Auto LoadApproved

880 Madurai 110 KV SRPUDUR 230 KV110 KV SR Pudur - Arumuganeri I feeder

section between SRP to Panagudy.


.

During the LC period, 110KV SRP- ARMI I # will be radial from ARMI upto Panagudy

(Incl).Hence no SS will be affected.POSSIBLE Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 14:00 1 Sub to wind gen. Approved






POSSIBLE Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1 Sub to wind gen. Approved

882 Erode 230 KV GOBI 230 KV230 KV BUS COUPLER BREAKER AND

CT'S WITH BUS IIFOR MONTHLY MAINTENANCE WORK

ALL 230 KV FEEDERS AND AUTO TRANSFORMER I,II AND III ARE CONNECTED

WITH BUS I,BUS II IDLY CHARGED THROUGH 230 KV BUS COUPLER BREAKER.possible Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1

bus 1 to be in

serviceApproved

883 Madurai 230 KV PUGALUR 230 KV230 KV Pugalur - Paramathy II feeder

Breaker, CT & line switch and line entire only

Replacement of existing 230KV C&Rj panel by new

one and Monthly Mtce work.

During the LC period, there will be no supply in 230 KV Pugalur - Paramathy II feeder.

Necessary Concurrence obtained from PGCIL Paramathy. Hence There is no interruption

to any SS,Already Lc approved in 129th OCC meeting.

POSSIBLE Wed, 19-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 2

App in

129occ/148.Sub to

load condition

Approved


KV

On 230 KV TTN - TTPS -I feeder Breaker

with CT bus & line side switches.For monthly Maintenance work No SS will be affected. POSSIBLE Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1 Sub TTPS gen. Approved

885 Madurai 110 KV ALAGARKOIL 230 KV

110KV ALKL-Karaikudy feeder breakler with

CT and Line section between ALKL-NSPTY

SS.

For monthly maintenance work and tree clearence

work.

During the L.C period the feeder will be radial up to narasingampatty SS from KKDI end,

hence there will be no interruption of supply please.POSSIBLE Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 16:00 1

Sub to karaiakudi

Auto LoadApproved

886 Erode 110 KV BKB - 1 11O KV BUS

For cleaning and tightness checking of bus PTs,

insulators, AB switches, jumbers,measuring the

Capacitance and Dielectric loss angle values on PTs

and CTs.

During the LC period,1.Both unit in non standby condition.2.Erode,Pallakapalayam,BKB-2

feeder breakers are tripped condition at BKB-1 end.3.The PWD drinking water demand of

500c/s will be met out through barrage gate.

postponed Wed, 19-Apr-2017 8:00 Wed, 19-Apr-2017 17:00 1to be scheduled

during erode tsd

Subject to

EE/SLDC/Erode

approval

887 Madurai 110 KV ALAGARKOIL 230 KV110 KV Alagarkoil -Sempatty -I # section

beween samayanallur to Amaynaickanur SS.

For tower to tower inspection and tree cutting in

various location.

During the LC period , The 110 KV Sholavanthan SS availing total shut down , Hence

there is no supply interruption at any other ss.POSSIBLE Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1 Sub to total s/d Approved



Monthly Maintenance Work

110 KV Salem I &II feeder will be fed from 230 KV SS salem. 110 KV Vembadithalam SS

# fed from sangakiri Grid SS, 110 KV Barrage II # will back charged condition from

Barrage - II 110 KV Thumbipady and Nangavalli # will be fed from Mettur 230 KV SS


not feasible as

auto tr 4 is under

outage

Not approved

889 Erode 110 KV Salem 400 KV110 KV Barrage II # - Its CT, BREAKER, BUS

& LINE SWITCHESMonthly Maintenance Work During LC Period, Ettikuttaimedu SS will be fed from Barrage - II. postponed Wed, 19-Apr-2017 8:00 Wed, 19-Apr-2017 14:00 1

llines lc

recommended for

bph 2 end

Subject to

EE/SLDC/Erode

approval

890 Erode 110 KV Salem 400 KV110 KV Vembadithalam # - Its CT,

BREAKER, BUS & LINE SWITCHESBoth end monthly Maintenance Work During LC Period, 110 KV Vembadithalam SS will be avail total shut down . possible Wed, 19-Apr-2017 8:00 Wed, 19-Apr-2017 14:00 1

subject to

vembadithalam ss

availing tsd

Approved

891 Madurai 230 KV KAVANOOR 230 KV 230 KV KAVANOOR-KARAIKUDI # 2MONTHLY MAINTENANCE WORKS AND LINE

MAINTENANCE WORKSSINCE BOTH ENDS LC TO BE AVAILED NO SUPPLY IN THE FEEDER POSSIBLE Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1 0 Approved


110 KV THENI- RASINGAPURAM #

BREEKER WITH CT ONLY.110 KV THENI-

PERIYAR II #(SECTION BETWEEN

KAMATCHIPURAM AND THEVARAM SS)

FOR MONTHLY MAINTENANCE WORK AND LINE

MAINTENANCE PREMONSOON INSPECTION

WORK.

NO INTERRUPTION TO ANY SS. KAMATCHIPURAM SS RADIAL FROM THENI SS

AND THEVARAM SS WILL BE RADIAL FROM PERIYAR PH.POSSIBLE Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1

1. Concurrance

from wind

genertor at

Rasingapuram

Approved


KV

Auto-II, HV and LV-II CBs, CTs, LASs and

230KV Switches.For regular maintenance works.

During LC period110KV Rasipuram SS availing Total Shut down.110KV Elanagar SS now

back fed through 110KV PSI-Rasipuram feeder will be transferred to 230KV Unjanai

SS.110KV Namagiripet SS will be transferred to 110KV DVK-Thammampatty feeder.If

necessary 110KV Erumapatty SS will be transferred to 230KV Perambalur/Samayapuram

SS.No supply interruption.


subject to

rasipuram ss

availing tsd

Approved

894 Madurai 110 KV kinnimangalam 230 KV 110KV KNMLM PSQ II # Monthly maintenance works for breaker and CT EE/O/PSQ has also programmed.There will be no supply in the entire feeder POSSIBLE Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1Sub to pasumalai

Auto LoadApproved

895 Madurai 230 KV KARAIKUDI 230 KVOn 1)230KV KKDI - KVNR- 2 # Bkr & Ct's.

2)230KV KKDI - KVNR- 2 #'r Entire1) For Monthly Mtc work2) Tree Cutting work.

During the L.C Period all other 230KV #'r will be tied with Grid. Hence there will be No

interruption of Supply.POSSIBLE Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1 0 Approved


230 KV

1)230KV RNPM - CKNI # Br,CT & line

switch2)230KV RNPM-CKNI # Entire line1)Monthly Maintenance works2)Tree Cutting works During LC period other end also programmed for availing LC in this feeder. POSSIBLE Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 16:00 1

Sub to load

conditionApproved

897 Erode 230 KV MTPSII 230KV GOBI FEEDER GENERAL MAINTENANCE WORKS.

UNIT IN SERVICE. ALL 400KV KARAMADAI-I&II ,PALAVADI-I&II AND ICT-I&II ARE IN

SERVICE. ALL 230KV MTPS-I ,METTUR AUTO SS AND STANDBY TRANSFORMER

EXCEPT THINGALUR FEEDER ARE IN SERVICE.



898 Madurai 230 KV TRICHY 230 KV100MVA Auto Transformer III, LV III

BREAKER, LAS, CTs and ,LV III I/C Isolator.a) For monthly maintenance works.





899 Erode 110 KV METTUR DPH 110KV BARRAGE PH 1 FEEDER ENTIRE. MONTHLY MAINTENANCE WORKSTHE OTHER END WILL ALSO PROPOSE TO AVAIL LINE CLEAR FOR MONTHLY

MAINTENANCE WORKS ON THAT DAY.possible Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 15:00 1

subject to the load



230 KV110 KV OKM-Sulur Feeder (Breaker & CT's) for annual relay testing works by GRT wing.

During the LC period, 110KV OKM-Sulur feeder loads will be transferred to 110KV OKM-

Negamam II feeder. Hence, No SS will be affected.possible Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 14:00 1

subject to transfer

of loadsApproved

901 Madurai 110 KV SEMBATTY 230 KV110KV SBT - Algarkovil I # Bkr, CTs and sec.

bet SBT and Solavandan SS1. Monthly maintenance work2. Tree cutting work

During the LC period, AMNR SS is availing total shutdown and the feeder will be radial

from other end upto Solavandan SS.Hence no interruption to any SS.POSSIBLE Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1 Sub to toal s/d Approved

902 Chennai 400 KV Thiruvalam 400 KVICT-II , 230KV Thiruvalam Link-II & 230 KV

Singarapet feederTandelta testing for ICT-II & 2 Nos.230KV feeders

1)ICT-II in off condition 2)ICT-I in service for 230 KV loads3)230KV Singarapet feeder

may be hand tripped if load on ICT-I reached above 280MW4)230KV Thiruvalam Link-II &

230 KV Singarapet feeder kept in OFF condition after ICT-II put in to service5)400KV

Alamathy -II feeder in service from its main breaker thro 400KV Bus-I

Possible OCC

Appd.129/Wed, 19-Apr-2017 09:00 Wed, 19-Apr-2017 17:00 1 One by One Approved

903 Chennai 110 KV ARNI 230 KV110KV Arani- Thazhanoor Feeder Breaker,

110KV CTs,Line Isolator



The 110KV Thazhanoor Feeder is at present idly charged condition up to 110KV Chetpet

SS Line side. Hence there will be no interruption of Supply.Possible Wed, 19-Apr-2017 09:00 Wed, 19-Apr-2017 14:00 1 0 Approved

904 Madurai 230 KVSTERILITE SW

STATION 230 KV

On 230 KV Sterlite -Annuppankulam feeder

breaker with CTs and line isolators only.For monthly maintenance works.

During the LC period,the other end has also proposed LC on the same date. M/S. Sterlite-

CPP generation (if available) will be exported to 230KV TTPS end and no other SS will be

affected please.



110KV Coimbatore-Arasur Feeder section

between 110KV Kallimadai SS and 110KV

Irugur SS

PMI Works By AE/Lines Coimbatore1.110KV Kallimadai SS fed from 230KV Coimbatore SS.2.110KV Irugur SS, KPR EHT

Service and Sulur Traction EHT Service will be fed from 230KV Arasur SSpossible Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 16:00 1

subject to the

feeder being kept

radial from arasur

ss

Approved

906 Erode 110 KV COIMBATORE 230 KV110KV Thudiyalur I & II Feeder Breaker and

CTs only one by oneFor Monthly Maintenance Works Scheduled Shutdown at 110/22/11KV Kavundampalyam SS possible Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 16:00 1

to be availed one

by one subject to

kavundampalaya

m ss availing tsd

Approved

907 Madurai 230 KV KADALANGUDI 230 KV 230KV Kadalangudy- PPN II feeder entire

1)Line inspection and rectification work 2)Main II

distance protection relay fixing work at Kadalangudy

end.

No interruption to any SS. All other feeders will be in tied condition. POSSIBLE Wed, 19-Apr-2017 10:00 Wed, 19-Apr-2017 17:00 1 0 Approved

908 Chennai 400 KV Sriperumbudur 400 KV 400KV HV-4 Breaker Quarterly maintenance work Auto-4 will be fed by 400kv tie breaker 0352Possible OCC


909 Erode 230 KV METTUR AUTO 230 KV 230 kv MTPS II-Gobi feeder entireJumbercone tightness checking at cut point tower

LOC NO: 27. 230 KV MTPS 2-Gobi feederProgrammed LC at MTPS 2. possible Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1

subject to the load


910 Erode 110 KV THUDIALUR 230 KV110KV Coimbatore I & II feeders entire one

by oneFor monthly mtce works 110KV Kavundampalayam SS will be under total shut down. possible Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 16:00 1

to be availed one

by one subject to

kavundampalaya

m ss availing tsd

Approved

911 Erode 110 KV METTUR AUTO 230 KV

110 KV K.R.Thoppur - Barrage II-feeder

section between Barrage II & poolampatty

110 KV SS only

For checking of Jumpercone Tightness at River

crossing Towers LOC NO: 1 & 2

(1) Edapady 110 KV SS has Programmed for total shutdown on that day(2)

Ettikudaimadu 110 KVSS,Jalagandapuram 110 KVSS & Poolampatty 110 kvss loads will

be fed radially from K.R.Thoppur 400 kvss


subject to the

feeder being kept

radial from kr

thoppur ss end

Approved


between 230 KV Arasur SS and 110 KV

Avinasi SS) and 110 KV Arasur -Thingalur #

(line section between 230 KV Arasur SS and

110 KV Velampalayam SS) including Feeder

Breakers and CTs

Stringing of 230 KV SC line from PGCIL -Arasur

400/230 KV SS to 230 KV Ingur SS for crossing

location 8 & 9 of 110 KV Vangipalayam SS DC line

by TLC/Perundurai wing of GCC/Coimbatore and

monthly maintenance works in Breakers and CTs at

230 KV Arasur SS

During the LC Period 110 KV Avinnasi SS & Vanjipalayam SS total Shutdown possible Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1

subject to avinasi

ss and

vanjipalayam ss

availing tsd

Approved

913 Madurai 110 KV ALUNDUR 230 KV

110KV Alundur - Sempatty feeder

Breaker's,CT'S and Line section between 230

KV SS Alundur up to vaiyamppatty 110 KV

SS.

a) Monthly maintenance work. b)premonsoon

inspection and tree cutting work. c)Relay testing

work.

During the LC period, a) 110KV Alundur - Sempatty feeder radially fed from 230 KV SS

sempatty SS up to vaiyampatty 110 KV SS. b) 110 KV vaiyampatty SS availing total

shutdown. c)All other 110 KV feeder's will be in service. d)There will be no interruption of

supply to any other feeder's and ss.


914 Erode 110 KV SALEM AUTO 230 KV110KV Rasipuram Breaker, CTs & Line

IsolatorsMonthly maintenance work.

110KV Mallur SS will be availing Total shutdown or fed from 230KV Pudansandai SS.

There will be no interruption to any SS or feeder.possible Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1

subject to mallur

ss availing tsdApproved

915 Erode 110 KV INGUR 230 KV 110KV Capacitor Bank II entire MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION approved Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 14:00 1

subject to the

voltage profile in

the grid

Approved


KV

1.110KV Vellichandai feeder breaker,

CTs,Line switch2.Auto Transformer -II with

HV-II Breaker and CTs & LV-II Breaker CTs.


maintenance wing and GRT Relay testing Auto

Transformer - II

110 KV Vellichandai SS,110 KV Pennagaram SS availing Total Shutdown Total Relief :

25 MW, the Station load will Managed by keeping Auto Transformer I & III and 230 KV

Shoolagiri and Mettur Feeder, 1 No Grid feeder in service.


subject to

vellichandai ss

and pennagaram

ss availing tsd

Approved

917 Chennai 110 KV MANALI 230 KV 110kvBusSection-2 and 110kv CPCL


110kv Bus Coupler-1 switch in 110kv Bus Section-2

and removing hotline jumper in 110kv TPL-1

bayb.For making T-off arrangement in 110kv cable

point, for linking of feeder to 110 kv GIS bus via GIS

Bay.No-109

a.110kv supply to M/s CPCL/TPL-1 will not be availableAfter the LC110kv CPCL feeder

will be in service via T-off, Bay.No. 109 of GIS SS.110kvBus Section-1 will be normalized

from AIS SS

To be discuss Wed, 19-Apr-2017 10:00 Wed, 19-Apr-2017 17:00 1 0 Approved

918 Erode 230 KVVINNAMANGALAM 230

KVisolators.

For Attending Monthly Maintenance works only

1,Total shutdown has been approved by CE/D/Vellore vide Memo.

No.:CE/D/VLR/EE/AEE/Gl/ F. Shut down/ D. 142 /2017, Dt:21.03.2017 and

SE/D/Tirupatture vide Memo.No:SE/TEDC/TPR/ Gen / AE / F.Shutdown/D.3287/17,

dt:21.03.2017.


919 Madurai 110 KV Punalkulam 110 KV 110 KV Punalkulam - Kurungulam feeder.For carrying out premonsoon inspection works by



interruption to any SS.POSSIBLE Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1 0 Approved

920 Erode 110 KV karamadai230KV110KV Karamadai-Arasur 1 feeder breaker&

CTsfor monthly maintenance works. Radially fed from Arasur end. possible Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 14:00 1

subject to the

feeder being kept

radial from arsur

ss end

Approved


A)110 KV NEMMELI THIPPIYAKUDI-

THANJAVUR FEEDER BREAKER,CT's &

LINE ISOLATOR. B)110 KV NEMMELI

THIPPIYAKUDI-THANJAVUR FEEDER (LP:

230KV NT KUDI SS TO 11


AEE/MTC/NEMMELI THIPPIYAKUDI.B)

PREMONSOON INSPECTION WORK BY


1)DURING THE LC PERIOD, 110KV THIRUKKANURPATTY SS, 110KV ECHANKOTTAI

AND 110KV ORATHANADU SS RADIALLY FED FROM 230KV THANJAVUR SS.2) ALL

OTHER FEEDERS ARE TIED CONDITION AND NO INTERRUPTION TO ANY SS.3) IN

110 /33-11 KV ORATHANADU SS 33 KV ALONE WILL BE IN SHUTDOWN.


922 Erode 230 KV METTUR AUTO 230 KV 230KV Hosur Feeder For Monthly Maintenance work During the LC period other 230KV feeders will be in service possible Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1

subject to 230 kv

hosur to shoolagiri

feeder loading

limit

Approved


1.230/110 Auto Transformer - 3 2. 230 KV

Mettur feeder breaker & Entire line .3. 110 KV

Kempatty feeder breaker & Entire line4. 110

KV Uddanapalli feeder & entire line.

For Monthly Maintenance Work.

During the above line clear period there will be no supply to the 110 KV Kempatty SS ,

110 KV Uddanapalli SS the above SS also availing shutdown on the same day. The

230KV SS loads will be maintained with in two Auto transformer capacity . The

concurrence of the SE/KEDC , SE/O/TVLM and CE/D/Vellore , has been obtained .


subject to the tsd

being realized and

subject to 230 kv

hosur to shoolagiri

feeder loading

limit

Approved


110KV Uddanapally feeder & 110KV Hosur-

Kempatty feeder &230KV Hosur -Mettur

feeder

For monthly Line maintenance work by Lines wing

Hosur

During the above line clear period there will be no supply to the 110KV Uddanapally

SS,110KV Kempatty SS.The above SS also availing Shut down on the same day .The

230KV SS Load will be fed from 230KV Shollogari-Hosur feeder.The concurrence of

CE/D/Vellore,SE/O/TVLm,SE/KEDC/Krishnagiri has been obtained.

0 Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 14:00 1 repeat of 53664 Not considered

925 Erode

GENERATI

NG

STATIONS

PYKARA UNIT 6 FOR MONTHLY MAINTENANCE WORK NIL possible Wed, 19-Apr-2017 8:00 Wed, 19-Apr-2017 17:00 1other units will be

availableApproved


KV

110 KV APKM - RJPM - I feeder Br., CT.,

only.Monthly maintenance work

During the LC period the 110 KV Vembakkottai SS loads will be transfer to 110KV

NNPTY - ALGM #. Hence no SS will be affected.POSSIBLE Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 13:00 1 0 repeat of 53835

927 Chennai 110 KV VILLUPURAM 230 KV110KV Thirukoilur-Deviyakurichi # between

Thirukoilur to Ariyalur SSFor monthly maintenance wroks For tightening of jumpers in Manalurpet LILO Possible Wed, 19-Apr-2017 09:00 Wed, 19-Apr-2017 17:00 1 0 Approved


230 KV

110KV OKM-Irugur feeder section between

230KV OKM SS and 110KV Irugur SS.

For annual relay testing works by GRT wing,P.M.I

works by lines wing and monthly maintenance

works.

During the LC period,(1) 110KV Podanur SS will be under Total shut down.(2) 110KV

Irugur SS will be fed from 230KV CBE SS.Hence, No SS will be affected.possible Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1

subject to

pothanur ss

availing tsd

Approved

929 Erode 110 KV BKB - 2110 KV SPB , BKB PH - 1 and Bus section

Breakers and Isolators .

Zone - 2 Bus LC for AOH work and TAN Delta

measurement by P&C wing.

Zone 1 Bus ( 110 KV Unjanai , Thiruchencode , BKB 3 , Ponni Sugars & Vendipalayam

Feeders ) will be in service. Unit 1 & 2 Non standby necessary concurrence obtained from

SPB.



930 Chennai 230 KV

BASIN

BRIDGE(GMRVASAVI)

230 KV

Auto Transformer 2 Routine mainteance workAuto Tr 2 will not be in service, all other 110 KV #S , 230 KV #s , Auto TR 1 & 3 will be in

servicePossible Wed, 19-Apr-2017 09:00 Wed, 19-Apr-2017 17:00 1 0 Approved

931 Chennai 230 KV ACHRAPAKKAM 230 KV 16 MVA PR.TR.I FOR MONTHLY MAINTENANCE WORK 1.16 MVA PR.TR.II & III Will be inservice cater the entire 11kv lods 0 Wed, 19-Apr-2017 09:00 Wed, 19-Apr-2017 12:00 1Concurrence from

SE/O

Concurrence from

SE/O

932 Erode 110 KV KUNDAH PH3 110KV KPH2 to Thudiyalur 2 Feeder

110KV KPH2 to Thudiyalur 2 Feeder Tower No:16 to

33. Pre-Monsoon Inspection work(PMI) and

Maintenance work.

Bus and Line both end open condition Earth switch closed condition. postponed Wed, 19-Apr-2017 9:00 Wed, 19-Apr-2017 17:00 1to be scheduled

on a sunday

Subject to

EE/SLDC/Erode

approval

933 Chennai 110 KV THARAMANI 230 KV 110 KV Velachery UG # Qtrly. Mtce. work Ideal feeder Possible Wed, 19-Apr-2017 09:00 Wed, 19-Apr-2017 17:00 1 0 Approved

934 Chennai 230 KV MYLAPORE 230 KV 100 MVA 230/33 KV Power Tr-1 Monthly Mtce. work 100 MVA 230/33 KV Power Tr.-2 will be in service Possible Wed, 19-Apr-2017 09:00 Wed, 19-Apr-2017 17:00 1Subject to CBD

concurrenceApproved

935 Erode 230 KV ANTHIYUR 230 KV 230KV Anthiyur-Gobi entire feeder.For monthly maintenance of Breaker,CT and Line

switch.

Gobi 230KVSS end also programmed to avail LC on 230 Anthiyur-Gobi feeder on the

same daypostponed Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 15:00 1

230 kv mtps to

ingur feeder lc

recommended

Approved

936 Erode 230 KV GOBI 230 KV230 KV ANTHIYUR FEEDER


FOR ANNUAL RELAY TESTING WORK BY


WORK

230 KV ARASUR FEEDER,230 KV PALLAKAPALAYAM FEEDER AND 230 KV MTPS II

FEEDER ARE IN SERVICE,IT MAY CATER THE LOADpostponed Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1

230 kv mtps to

ingur feeder lc

recommended

Approved

937 Chennai 110 KV SPKoil lines 110 KV Orgadam feeder 2 Quertaly maintenance work Possible Thu, 20-Apr-2017 10:00 Thu, 20-Apr-2017 17:00 1 approved Approved

938 Madurai 230 KV SEMBATTY 230 KV230/110KV Auto III<, HV III, LV III Bkr, CTs

and relays

1. Monthly maintenance work2. Annual relay testing

workDuring the LC period Auto I and II will be in service. POSISBLE Thu, 20-Apr-2017 10:00 Thu, 20-Apr-2017 17:00 1

Due to 110Alandur-

Sembatty # lcApproved

939 Madurai 230 KV KODIKURICHY 230 KVi) 100 MVA Auto-II HV, LV breakers with CTs

and all Isolators.For Monthly maintenance works

During the L.C, Auto-II will be out of service. Auto-III, Auto-I will cater the SS load; Hence

no SS will be affected.POSSIBLE Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1

SUB TO WIND

GENERATIONApproved

940 Madurai 230 KV KAYATHAR 230 KVOn 230KV Kayathar - Udayathur feeder


a) For monthly maintenance work. . b) Tower to

Tower inspection work.During the LC period, Other end also availing Lc. Hence no SS affected. POSSIBLE Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1 sub to wind gen Approved


230 KV PUDUKKOTTAI- ALUNDUR FEEDER

BREAKER, CT,CVT, ISOLATOTRS AND 230

KV EHT LINE

FOR MONTHLY MAINTENANCE OF BREAKER,

CT, CVT, ISOLATORS AND 230 KV EHT LINE AND

GRT TESTING WORKS

PUDUKKOTTAI 230 KV SS LOAD WILL BE MAINTAINED FROM 230 KV KARAIKKUDY

PG FEEDER AND HENCE THERE WILL BE NO INTERUPTION OF SUPPLY TO ANY

SS. OTHER END ALSO AVAILING SHUT DOWN.


942 Erode 110 KV KUNDAH PH5 110KV PH5 TO PH6 #ANNUAL RELAY TESTING WQRK BY GRT WING

KUNDAH


OTHER END.possible Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1

subject to the load


943 Erode 110 KV Erode 110 KV110 KV ERODE - ELUMATHUR FEEDER

BREAKER AND CTMONTHLY MAINTENANCE WORK.

DURING LC PERIOD 110 KV KASPAPETTAI SS TO BE FED FROM PUGALUR 230 KV

SSpostponed Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 15:00 1

feeder cannot be

kept entirely radial

without tsd

Subject to

EE/SLDC/Erode

approval


1).110 KV Pasumalai - Thullukkapatty #

Breaker & CT, LI only. 2) Line LC in Section

between Pasumalai - Soolakarai SS.

1) Monthly Maintenance Works of BKR & CT,LI1) Feeder will be kept radial from Thullukapatty upto Soolakarai SS. 2) Hence there is No

interruption of Supply to any SSPOSSIBLE Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 14:00 1

sub to load

conditionApproved

945 Madurai 110 KV SRPUDUR 230 KVOn 110 KV SR Puthur - Kodayar I # line

section between Nagercoil and Thuckalay.


.

During the LC period the 110 KV SR Puthur - KDR I feeder will be radial from SR Puthur

upto Nagercoil (Incl).110 KV SR Puthur - KDR I feeder will be radial from KDR PH II upto

Thuckalay SS (incl).The 110/11 KV Chembonvilai, Cheramangalam and Karungal SS will

avail total Shutdown as approved by SE/KKEDC/NGL and SE/O/TIN. Hence no SS will be

affected.


Sub to

concurrance from

Traction Eraniyal

Subject to Railway

concurrence


on 110KV O Thulukkapatti-Papanasam #

section between 110KV O Thulukkapatti ss &

Ambasamuthiram-SS

For Replacement of defective insulators at Loc:No

11

(i)110KV Ambasamuthiram SS & 110 Kv V.K.Puram SS will be Radillay Fed from

Papanasam Power House . (iii) Hence No SS will be affected.POSSIBLE Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1

sub to ppm pwd

demandApproved


1.110KV UNJANAI - ELANAGAR FEEDER

BREAKER , CT'S AND LINESIDE ISOLATOR

ONLY

FOR MONTHLY MAINTENANCE WORKDURING THE ML.C PERIOD ELANAGAR 110KVSS ALSO AVAILING TOTAL

SHUTDOWNpossible Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1

subject to

elanagar ss

availing tsd

Approved


STATION 230 KV230KV CKNI-Meelavittan Feeder Entire

For Monthly Maintenance work and Line

Maintenance WorkDuring LC Period there will be no supply in the entire feeder POSSIBLE Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1

Sub to load

conditionApproved

949 Madurai 110 KV then I 230 KV110 KV THENI-PERIYAR # III BREAKER

WITH CT ONLY.FOR MONTHLY MAINTENANCE WORK. MONTHLY MAINTENANCE WORK ( R/F PERIYAR) POSSIBLE Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 13:00 1 0 Approved


KV

110KV Namakkal Feeder CB, CTs and Line

Switch.For regular maintenance works.

During LC period110KV Namakkal SS will be back fed through 110KV PSI-Valayapatty

feeder.No supply interruption.possible Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 15:00 1

subject to transfer

of namakkal ss

loads to

valayapatty feeder

Approved

951 Madurai 110 KV KARAIKUDI 230 KV

On 1)110KV SVGA #'r Bkr & its Ct's.

2)110KV KKDI - SVGA #'r S/B KKDI - Kallal

SS.

1) For Monthly Mtc work2) For tree cutting work.During the L.C Period the 110KV Kalayarkoil SS under TSD. 110KV KKDI - SVGA #'r will

be radial upto Kallal SS. Hence there will be No interruption of Supply.POSSIBLE Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1

SUB TO LOAD

CONDITIONApproved


KV230KV BusCoupler CT,Breakers Monthly maintenance work Both Auto Transformer and 230KV Feeders load Transfer to 230KV Bus I possible Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1

subject to equal


953 Erode 400 KV MTPSII 400KV KARAMADAI-II FEEDERMONTHLY MAINTENANCE WORKS AS

APPROVED BY OCC

UNIT IN SERVICE. 400KV FEEDER KARAMADAI-I ,PALAVADI-I&II AND ICT-I&II ARE IN

SERVICE. ALL 230KV FEEDER MTPS-I,GOBI,METTUR AUTO AND STANDBY



occ approved and

subject to load

condition existing

Approved


A) 110 KV KAVANOOR-VALINOKKAM-

ARKAY # BR. & C.T. B) 110 KV KAVANOOR-

VALINOKKAM-ARKAY # SEC. BET.

KAVANOOR & VALINOKKAM

LINE MAINTENANCE WORKSFEEDER TO BE KEPT RADIAL FROM ARKAY UPTO KEELAKARAI & FROM

KAVANOOR UPTO VALINOKKAMPOSSIBLE Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1

Sub to Araky

generatonApproved

955 Madurai 230 KV UDAYATHUR 230 KV230KV UDAYTHOOR-KAYATHAR

FDR.BREAKER, CT,CVT&LINE SWMONTHLY MAINTENANCE WORK

DURING THE LC PERIOD THERE WILL BE NO SUPPLY TO ENTIRE FEEDER. OTHER

END ALSO LC APPLIEDPOSSIBLE Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 14:00 1 sub to wind gen Approved

956 Erode

GENERATI

NG

STATIONS

METTUR DPH MACHINE 3 MONTHLY MAINTENANCE WORKSTHE PWD DEMAND WILL BE MEET OUT BY OTHER STANDBY MACHINES ART DAM

POWER House,METTUR.possible Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 15:00 1

other machines

will be availableApproved

957 Madurai 230 KV THIRUVARUR 230 KV 230KV Main Bus - II 230KV Main Bus - II maintenance workDuring the LC period 230KV Main Bus - I will be in service . Hence there will be no

interruption of supply to any other Substation.POSSIBLE Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1 0 Approved

958 Chennai 110 KV TONDIARPET 230 KV 110 KV ETPS FEEDER FOR ROUTINE MAINTENANCE WORKS.DURING THE PERIOD OF SHUTDOWN , EXCEPT 110 KV ETPS FEEDER ALL OTHER

FEEDERS AND EQUIPMENTS WILL BE IN SERVICE.Possible Thu, 20-Apr-2017 09:00 Thu, 20-Apr-2017 13:00 1 0 Approved


230 KV110 KV OKM-Irugur Feeder (Breaker & CT's)

for annual relay testing works by GRT wing and


During the LC period, 110KV OKM-Irugur feeder loads will be transferred to 230KV CBE

SS. Hence, No SS will be affected.possible Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 14:00 1

subject to transfer

of loads to

coimbatore ss

Approved


230 KV

230/110 KV Auto Transformer-II (HV & LV

Breakers, CTs & LAS)for monthly maintenance works.

During the LC period,(1) 110KV Madukkarai SS,Kinathukadavu SS & Sidco SS will be

under Total Shut down.(2) 110KV OKM-Thudiyalur I feeder loads will be transferred to

230 KV TDLR SS.(if necessary)(3) The remaining two Auto Transformers will be in

service to cater the SS loads.Hence, No SS will be affected.


subject to the

other auto trs

loading limit after

the tsd relief

Approved

961 Madurai 230 KV EACHANGADU 230 KV110KV ICL-I & ICL-II feeder Breaker and CT's

only One by one.For Monthly Maintenance work

During the shutdown period, there will be No interruption to the EHT Consumer .

Concurence also obtained from the concerned.POSSIBLE Thu, 20-Apr-2017 10:00 Thu, 20-Apr-2017 17:00 1 0 Approved

962 Erode 110 KV DEVIAKURICHI 230 KV For Monthly Maintenance work 110 KV Neyveli # I will be kept Radial from TS-I end possible Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1

subject to sldc

chennai

concurrence

Approved

963 Erode 110 KV THINGALUR 230 KV110KV Erode II feeder Breaker, CTs & Line

Isolator.Monthly Maintenance. 110KV Gandhi Nagar SS availing total Shutdown. possible Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 14:00 1

subject to

gandhinagar ss

availing tsd

Approved

964 Chennai 400 KV Thiruvalam 400 KV 400KV MTPS feeder I and II Tandelta testing

1)400KV MTPS - I kept in OFF condition at both end & MTPS -II feeder in service during

the period of MTPS- I feeder testing.2)400KV MTPS - II kept in OFF condition at both end

& MTPS -I feeder in service during the period of MTPS- II feeder testing.

To be discuss Thu, 20-Apr-2017 09:00 Thu, 20-Apr-2017 17:00 1LILO at Palavadi

on 12.03.2017Approved


230 KV

On 230 KV Sipcot- Chekkanoorani feeder

breaker with CTs and line isolators only.

(Through Bus Transfer Breaker)

For monthly maintenance work.During the LC period, the other end has also proposed LC on the same date and no other

SS will be affected.POSSIBLE Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1

sub to load

conditionApproved

966 Madurai 400 KV kamuthi 400 KV 400/110 KV ICT- IV MONTHLY MAINTENANCE WORK NO FEEDER AFFECTED IN 110 KV SIDE POSSIBLE Thu, 20-Apr-2017 10:00 Thu, 20-Apr-2017 17:00 1

App in 129

occ/189sub to

solar gen. iv and v

one by one

Approved (One

byOne)

967 Madurai 400 KV kamuthi 400 KV 400/110 KV ICT-V MONTHLY MAINTENANCE WORK ICT -III OR ICT -IV WII BE PUT IN TO SERVICE NO 110KV FEEDER AFFECTED POSSIBLE Thu, 20-Apr-2017 10:00 Thu, 20-Apr-2017 17:00 1

App in 129

occ/190sub to

solar gen. iv and v

one by one

Approved (One

byOne)

968 Madurai 230 KV KADALANGUDI 230 KV230/110KV Auto Transformer II, HV-II, LV-II

and 230KV & 110KV LASMaintenance work No interruption to any SS. Auto II load will be managed by Auto I.

NOT


LC programmed

along with Total

s/d

Not approved

969 Erode 110 KV UDUMALPET 230 KV110 KV PONNAPURAM FEEDER BREAKER

UPTO PATSPIN EHT

110 KV PONNAPURAM FEEDER BREAKER UPTO

PATSPIN EHT110 KV PONNAPURAM FEEDER BREAKER UPTO PATSPIN EHT possible Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1

subject to the load


970 Chennai 230 KV Sriperumbudur 400 KV 230KV SV Chatram- Nokia feeder entire line Line patrol and jumper tightness work During the period of shutdown 230kv spr-nokia feeder will be in service Possible Thu, 20-Apr-2017 09:00 Thu, 20-Apr-2017 17:00 1 0 Approved


110KV ACHARAPAKKAM FEEDER


ISOLATOR

TO CARRYOUT MONTHLY MAINTENANCE WORK1.110KV ACHARAPAKKAM SS AND TRACTION LOADS WILL BE TRANSFERED TO

110KV ACK- SP KOIL -I FEEDERPossible Thu, 20-Apr-2017 09:00 Thu, 20-Apr-2017 16:00 1 0 Approved


KV230KV SVC - Nokia # entire for monthly maintenance work During the LC period the 230KV SVC - Nokia # will be out of service Possible Thu, 20-Apr-2017 09:00 Thu, 20-Apr-2017 17:00 1 0 Approved

973 Chennai 230 KV Nokia 230 KV 230KV Sunguvarchatram # Quartely Maintenance Work During the LC period the 230KV SVC - Nokia # will be out of service Possible Thu, 20-Apr-2017 09:00 Thu, 20-Apr-2017 17:00 1 0 Approved

974 Chennai 230 KV Orgadam 230 kV 230 KV Bus A MONTHLY MAINTENANCE WORK Possible Thu, 20-Apr-2017 09:00 Thu, 20-Apr-2017 17:00 1 0 Approved

975 Erode 110 KV SINGARAPET 230 KV110 KV Capacitor bank II Breaker, CTs and

Capacitor units


AEE/MTC/230 KV SS / SPTDuring the LC period the 110KV Capacitor bank II breaker will be in handtrip condition approved Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 15:00 1

subject to the

voltage profile in

the grd

Approved

976 Erode 230 KV THUDIALUR 230 KV 230KV PH4 feeder Br & CTs For monthly mtce works 230KV OKM,Coimbatore & Karamadai feeders will be in service possible Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 14:00 1subject to the load




line portion between 110KV Thiruvanaikoil SS

and 110KV Thennur SS.


During the above period of shut down a) 110KV T.V.Koil SS avial toal shutdown on the

same day. b) 110KV Thennur SS will be fed radially from 110KV Trichy Grid SS. c)

110KV Poovalur SS, M/s.Kothari EHT SC,110KV Valadi SS will be fed radially from

230KV Samayapuram Auto SS. d). The line Isolator towards 110KV Thennur SS at

110KV Thirvanaikoil ss will be Kept opend and earth switch closed. e)The line Isolator

towards 110KV Thirvanaikoil ss at 110KV Thennur SS will be Kept opend and earth

switch closed. f) Necessary concurrence has been obtained from M/s.Kothari EHT Service

for switching operation. g)There will be no interuption to any other SS/EHT consumers.



For Monthly maintenance work possible Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1

subject to the

feeder being kept

radial from

karamadai ss end

Approved

979 Madurai 230 KV ALUNDUR 230 KV230KV Alundur - Pudukkottai Feeder breaker,

CT'S, CVT'S and Line Isolators.

a)For monthly preventive maintenance works by the

AEE/Mtce/Alundur. b)premonsoon inspection and

tree cutting work. c) Relay Testing Work


be in service. c) There will be no interruption of supply to any other feeders.POSSIBLE Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1 0 Approved

980 Madurai 230 KV ALUNDUR 230 KV230KV Alundur - Pudukkottai Feeder breaker,

CT'S, CVT'S and Line Isolators.

a)For monthly preventive maintenance works by the

AEE/Mtce/Alundur. b)premonsoon inspection and

tree cutting work. c) Relay Testing Work


be in service. c) There will be no interruption of supply to any other feeders.POSSIBLE Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1 0 Approved

981 Erode 230 KV SALEM AUTO 230 KV230KV Southern Bus form bus coupler switch

no.489To check the alignment of Link-II feeder Bus switch.

1). 3Nos. Auto transformers will be in Hand trip condition. 2). 230KV Link-I & II will be

radially fed from other end. 3). 230KV Sangarapet and MTPS feeders will be in service.4).

There will be no Interruption to any other SS or Feeders.

postponed Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1to be scheduled

with tsd

Subject to

EE/SLDC/Erode

discussion

982 Madurai 230 KV kayathar230kv230KV Anuppankulam feeder breaker (201-

52), CT,CVT and LASMonthly Maintenance work

During the LC period there will be no supply in 230KV Anuppankulam feeder breaker (201-

52), CT,CVT and LAS. Hence no substation affected.POSSIBLE Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1 0 Approved

983 Erode 110 KV INGUR 230 KV110KV Erode III # Breaker, CTs,Isolators and

Line side IsolatorMONTHLY MAINTENANCE WORKS DPENDING UPON LOAD CONDITION possible Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 14:00 1

subject to the load



KV110KV SRF feeder

Monthly maintenance work, CT clamp and bolt nuts

replacement workConcurance to be obtained from M/s. SRF

Possible with

CBD

concurrence

Thu, 20-Apr-2017 10:00 Thu, 20-Apr-2017 17:00 1

Subject to

Concurance from

M/s. SRF

Approved

985 Erode 230 KV PONNAPURAM 230 KV AUTO-I ,HV-I,LV-I Breaker and Its CTs Monthly Maintenance works.

1. 110KV PETHAPPAMPATTY # WILL BE KEPT RADIAL FROM 230KV UDT SS UP TO

THIS END2. 110KV THUNGAVY # WILL BE KEPT RADIAL FROM 230KV UDT SS UP

TO THIS END 3. HENCE, IT IS EXPECTED THAT THE LOADS WILL BE WITH IN THE

LIMITS OF OTHER TWO AUTO TR's 4. HENCE NO SS WILL BE AFFECTED.


subject to the

other auto trs

loading limit

Approved

986 Madurai 110 KV KAYATHAR 230 KV 110 KV Kayathar GC and LV breaker CTa) For monthly Maintenance Workb) for GRT Relay

testing workDuring that particular day total shutdown will be availed. Hence, no ss affected POSSIBLE Thu, 20-Apr-2017 0:00 Thu, 20-Apr-2017 0:00 1 0 Approved

987 Erode 400 KV karamadai230KV400KV MTPS stage III feeder II main & Tie

breaker, CTs & CVTs.For maintenance works. Other 400KV feeders and ICT 1,2 & 3 will be in service. possible Thu, 20-Apr-2017 10:00 Thu, 20-Apr-2017 17:00 1

occ approved and

subject to load

condition existing

Approved

988 Madurai 230 KV THANJAVUR 230 KV100 MVA Auto Transformers-1 & 2, HV- 1 &

2, LV- 1 & 2 Breakers & CTs. (one by one)

1) Monthly maintenance works by the

AEE/Mtce/Thanjavur,2) Relay replacement works

(i.e. Transformer differential relay from static to

numerical) in Auto Transformer-2 by the

AEE/P&C/Thanjavur.

During the LC period,1) Thanjavur 110 KV Grid SS will avail shutdown in 11 KV

feeders,2) further only if required, 110 KV Thanjavur-NTKudi feeder's tie may be kept

opened at Thanjavur 230 KV SS for containing auto transformer's load,3) all 230 KV &

other 110 KV feeders will be in tied condition,4) no supply interruption to any SS.


Sub to load

condition and NT

Kudi Auto Loading

Approved

989 Erode 110 KV SALEM AUTO 230 KV110KV Deviakurichi-Singapuram I Entire

FeederRoad & Railway crossing jumpers checking.

1)Thumbal 110KV SS will be availing total shutdown on that day.2)Singapuram 110KV

SS supply availing Deviakurichi-Singapuram II Feeder. 2)110KV Deviakurichi-

Singapuram I Feeder series switch Both 230KV SS will be Kept Opened.3)There will be

no interruption of supply to any SS.


subject to thumbal

ss tsd and supply

of singapuram ss

loads to feeder 2

Approved

990 Erode 230 KV KARUVALUR 230 KV 230kv TBC/BC breaker and CTs For monthly maintenance work All feeders will be in service possible Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 15:00 1

subject to regular

breakers being in

service

Approved

991 Chennai 230 KV ATHIPET 230 KV 230KV NCTPS feeder Routine Maintenance work1. 230KV Mosur feeder source alone will be in service.2. All 110KV feeders , Auto

Transformer & Power Transformer will be in servicePossible Thu, 20-Apr-2017 11:00 Thu, 20-Apr-2017 17:00 1 0 Approved

992 Erode 110 KV METTUR AUTO 230 KV 110KV Singarapet I Feeder For Monthly Maintenance workDuring the LC period 110KV RC plant Feeder will be in service and 110KV Thumbipady

SS total shutdown programedpossible Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1

subject to the

feeder being kept

radial from

singarapet ss end

Approved

993 Chennai 230 KV CUDDALORE 230 KV& 230KV TAQA # one by one.

GCC/Trichy wing work - 2 Feeder Bay extension for

Ulundurpet and Villupuram Dropper and Jumper

work.Take off tower conductor deviation work.

Durind the period of LC All the loads will be transferred to 230 KV BUS B . Bus coupler

under tripped condition .Hence no interruption of supply.Hence NO Interruption of


0 Thu, 20-Apr-2017 09:00 Fri, 21-Apr-2017 17:00 2 Approved

994 Chennai 230 KV CUDDALORE 230 KV230KV Cuddalore- TAQA # Breaker ,CT, with

Line isolatorFor monthly maintenance works

supply.Hence NO Interruption of SupplyConcurrence obtained from SE/O/Villupuram0 Thu, 20-Apr-2017 09:00 Thu, 20-Apr-2017 17:00 1 Approved


110 KV Kanchipuram - Kaveripakkam feeder(

in between 110 KV Pallur -110 KV

Kanchipuram and 110 KV Damal SS).

For replacement of defective disc at Loc 93.Damal SS).ii. The 110KV Damal SS is availing total shutdown.Hence there will be no




KV

100 MVA AUTO TR. I, HV I, LV I, Br. and CT.

onlyFor Monthly Maintenance Works.

During the LC period,the Auto Transformer I already proposed to be availed LC from

17.04.2017 to 28.04.2017. Hence no SS Will be affected.POSSIBLE Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1

Sub to load

conditionApproved


230 KV

110 KV Western Bus Section Entire (Auto Tr-

I, TDLR I & II #'s, Negamam I & II #'s, Sulur #

( Breaker & CT's, Bus dropper & jumper, PT-

I)

for annual bus maintenance works and defective

switch (

During the LC period, (1) 110KV Madhampatty SS,Anthiyur SS,Devarayapuram SS and

Peedampalli SS will be under Total Shut down.(2) 110KV OKM-Thudiyalur I & II feeder

loads will be transferred to 230 KV TDLR SS. (3) 110KV OKM-Negamam I & II feeder will

be kept radial from 110KV Negamam SS.(4) 110KV Sulur SS will be fed from 230KV

Arasur SS.(5) Supply interruption to L&T EHT Service.(4) 230/110KV Auto Transformer-I

will be under Cut OFF condition.(5) The remaining two Auto Transformers will be under

service to cater the SS loads. Hence, No SS will be affected.

postponed Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 17:00 1

this lc has been

scheduled on

13.04.2017

Subject to

EE/SLDC/Erode

approval


110 kV LAS 2nos and 2nos 110 kV Isolaters

to Power Transformer at switch yard LMBPH -

2 / Nerinjipettai

To carry out maintenance at 110 kV LAS 2nos and

2nos 110 kV Isolaters to Power Transformer at

switch yard LMBPH - 2 / Nerinjipettai

(i) Unit - 1 & 2 Generator are shut down condition possible Thu, 20-Apr-2017 9:00 Thu, 20-Apr-2017 15:00 1

bus lc will be

issued subject to

the load condition

existing only

Approved

999 Erode 110 KV SINGAPURAM 230 KV 110 KV Deviyakurichi I Feeder(CT,Breaker) Monthly Maintenance

1.Monthly Maintenance 110 KV Deviyakurichi -I Feeder will be fed radially from

Deviyakurichi end and 110/22KV Thumbal SS is availing TSD on 20.04.2017.2.There will

be no interruption to the intermediate SS.


subject to thumbal

ss tsd and supply

of singapuram ss

loads to feeder 2

Approved

1000 Erode 110 KV KUNDAH PH3 110KV KPH2 to Thudiyalur Feeder

110KV KPH2 to Thudiyalur Feeder Tower No:34 to

51 Pre-Monsoon Inspection work(PMI) and

Maintenance work.

Bus and Line both end open condition Earth switch closed condition. postponed Thu, 20-Apr-2017 8:00 Thu, 20-Apr-2017 17:00 1to be scheduled

on a sunday

Subject to

EE/SLDC/Erode

approval

1001 Erode 230 KV Salem 400 KV230 KV Pallakapalayam # - Its CTs,

BREAKER, BUS & LINE SWITCHESBoth end Monthly Maintenance Work Both end Monthly Maintenance Work postponed Fri, 21-Apr-2017 8:00 Fri, 21-Apr-2017 14:00 1

230 kv mtps to

anthiyur feeder lc

recommended

Approved Subject to

load condition


KV

230KV K.R.Thoppur Feeder CT,Breaker,Bus

&Line Switches and 230KV Bus II

Monthly Maintenance and Rectify the defect in Bus-II

IsolatorsBoth end LC avail on that day postponed Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1

230 kv mtps to

anthiyur feeder lc

recommended

Approved Subject to

load condition

1003 Erode 230 KV SALEM AUTO 230 KV230KV KR THOPPUR-PALLAKKAPALAYAM

feeder entireRailway crossing jumpers checking.

1) 230KV KR Thoppur - Pallakkapalayamn feeder breakers kept hand tripped at KR

Thoppur 400KV SS and Pallakapalayam 230KV SS.2) There will be no supply in 230KV

KR THOPPUR-PALLAKKAPALAYAM feeder entire,3) KR Thoppur 400KV SS and

Pallakapalayam 230KV SS are availing breaker and line switches LC on that day.4) There

will be no interruption of supply to any SS.

postponed Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1

230 kv mtps to

anthiyur feeder lc

recommended

Approved Subject to

load condition

1004 Madurai 230 KV KARAIKUDI 230 KVOn 1)230KV NT.KUDI #'r Bkr & Ct's 2)230KV

NT.KUDI #'r Entire.1) For Monthly Mtc work.2) Tree Cutting Work.

During the Lc Period all other 230KV #'r will be tied with grid. Hence there will be No

interruption of Supply.0 Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1

LC may be

programmed with

total s/d in NTkudi

area. Since

Kadalangudi-

neyveli # ol

Approved Subject to

load condition


230 KV

A)230KV NEMMELI THIPPIYAKUDI-

KARAIKUDI FEEDER BREAKER, CT's AND

LINE ISOLATOR. B)230KV NEMMELI

THIPPIYAKUDI-KARAIKUDI FEEDER

A) MONTHLY PREVENTIVE MAINTENANCE

WORK BY AEE/MTC/ NEMMELI THIPPIYAKUDI.B)



1) DURING THE LC PERIOD 230/110KV NEMMELI THIPPIYAKUDI SS RADIALLY FED

FROM 230KV THIRUVARUR SS.2) NO INTERRUPTION TO ANY SS AND ALL OTHER

FEEDERS ARE TIED CONDITION.3) IF NECESSARY, 110KV N T KUDI-THANJAVUR

FEEDER TIE WILL BE OPENED AT 230KV N T KUDI SS.


LC may be

programmed with

total s/d in NTkudi

area. Since

Kadalangudi-

neyveli # ol

Approved

1006 Chennai 230 KV Orgadam 230 kV110 KV Northen Bus ( Kadapperi, Spkoil-I&II,

Palayaseeevaram)MONTHLY MAINTENANCE WORK Possible Fri, 21-Apr-2017 09:00 Fri, 21-Apr-2017 17:00 1 0 Approved

1007 Madurai 230 KV KODIKURICHY 230 KVAuto-III HV & LV breakers with CTs and all

Isolators.Monthly maintenance work

During the L.C period , i)Auto-III will be out of service. ii)Auto-II, Auto-I will cater the SS

load; iii)Hence no SS will be affected.POSSIBLE Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1

SUB TO WIND

GENERATIONApproved

1008 Madurai 230 KV KAYATHAR 230 KVOn 230KV Kayathar - Checkannurani-I feeder


For a) Monthly Maintenance Work b) Tower to Tower

Inspection WorkDuring the LC period, other end also availing LC. Hence no SS affected. POSSIBLE Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1 0 Approved

1009 Madurai 110 KV SRPUDUR 230 KVOn 110KV SR Puthur - Nagercoil # section

between MPM and Nagercoil.Tree clearance and Tower to Tower inspection

During the LC period,110/11 KV NGL SS will avail total shut down as approved by

SE/KKEDC/NGL. Hence no SS will be affected.POSSIBLE Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 14:00 1 0 Approved







Sub to wind gen

and no blocking of

wind gen

Approved

1011 Erode 110 KV GOBI 230 KV110 KV THINGALUR FEEDER BREAKER

AND CT'S WITH LINE SWITCHFOR MONTHLY MAINTENANCE WORK

SUPPLY TO 110 KV GETTICHEVIYUR SS MAY FED FROM 230 KV THINGALUR

FEEDER,NO OTHER SS WILL AFFECTEDpossible Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1

subject to

getticheviyur ss

being fed from

thingalur ss end

Approved

1012 Madurai 110 KV ALAGARKOIL 230 KV 110KV ALKL-PSQ 1 # breaker with CT ONLY For monthly maintenance work

During the L.C period the feeder will be radial from PSQ end further the 10e 110KV

Vandiyur & IT Park SS will be under total shutdown ,hence there will be no intrruption of

supply please.

POSSIBLE Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 14:00 1sub to load

conditionApproved

1013 Erode 110 KV Salem 400 KV110 KV Thumbipadi # - Its CT, BREAKER,

BUS & LINE SWITCHESMonthly Maintenance Work During LC Period, 110 KV Thumbipady SS will be avail total shut down. possible Fri, 21-Apr-2017 8:00 Fri, 21-Apr-2017 14:00 1

subject to

thumbipadi ss

availing tsd

Approved


STATION 230 KV230KV CKNI-Kayathar-I feeder Entire


Maintenance WorkDuring LC Period there will be no supply in the entire feeder POSSIBLE Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1 0 Approved

1015 Madurai 110 KV VALUTHUR 230 KV

110KV Arkay - Keelakarai - Valinokkam -

Kavanoor section between Arkay and

Keelakarai line.

Tree cutting work.During the LC period evacuation will be done through 110KV Valuthur - Arkay I &II and

Arkay - Mandapam- Perungulam feeders.POSSIBLE Fri, 21-Apr-2017 10:00 Fri, 21-Apr-2017 17:00 1 sub to Arkay gen Approved


KV

110KV Kalappanaickenpatty feeder CB, CTs

& Line Switch.110KV East BUs, its PTs and

Bus Side Switches-5 Nos.

For regular maintenance works.

During LC period110KV KN Patty SS availing Total Shut down.110KV Rasipuram SS will

be transferred to 110KV Salem-Malllur feeder.110KV Namagiripet SS will be transferred

to 110KV DVK-Thammampatty feeder.Other 110KV feeders will be catered by Auto-I in

service.No supply interruption.

1. possible 2.

postponedFri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1

1. subject to kn

patty ss availing

tsd; 2. to be

availed with tsd

Subject to

EE/SLDC/Erode

approval


230 KV110KV RNPM - SBT-I # Br,CT's Monthly Maintenance works

During LC period the feeder will be radially fed from SBT end upto RNPM SSIntermediate

SS 110KV Minukkampatty SS avail total shutdown.POSSIBLE Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 14:00 1 0 Approved

1018 Madurai 230 KV UDAYATHUR 230 KV230KV UDAYATHOOR-SANKANERI

FDR,BR., CT., CVT., L.SWMONTHLY MAINTENANCE WORK

DURING THE LCPERIOD THEREWILLBE NO SUPPLY TO ENTIRE FEDER. OTHER

END ALSO LC APPLIEDPOSSIBLE Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 14:00 1 Sub to wind gen Approved

1019 Madurai 110 KV TRICHY 230 KV110 KV Trichy Link I & II feeder breaker , CTs

& Line Isolator and line entire one by one.


inspection

During the LC period a) Trichy 110 KV Grid SS availing total shut down for monthly

maintenance works. b) 110 KV Iyyarmalai SS and 110 KV Pettavaithalai SS loads will be

managed through 110KV Pugalur - Puliyur - Trichy feeder and M/s Welspun Solar power.

c) All other 110 KV feeders will be in service. d) there will be no interruption of supply to

any of the SS.

POSSIBLE Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 16:00 1 sub to wind gen Approved


230 KV

110 KV OKM-Irugur # section between

110KV Podanur SS and 110KV Irugur SS.for P.M.I works by lines/TDLR wing.

During the LC period, 110KV Podanur SS will be fed from 230KV OKM SS and 110KV

Irugur SS will be fed from 230KV CBE SS. Hence, No SS will be affected.possible Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 14:00 1

subject to the

loads being fed

from either end

Approved


230 KV

110KV OKM-Udumalpet II Feeder (Breaker,

CT's & Line Switch)for monthly maintenance works.

During the LC period, 110KV OKM-Udumalpet II feeder will be kept radial from 110KV

Udumalpet SS. Hence, No SS will be affected.possible Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 14:00 1

subject to the

feeder being kept

radial from udpt ss

end

Approved

1022 Madurai 110 KV EACHANGADU 230 KV110 kv MCL-II Feeder entire, BREAKERS ,

CT'SFor Monthly maintenance works.

DURING THE ABOVE SHUTDOWN PERIOD THERE WILL BE NO IMPORT RECEIVED

FROM EHT CONSUMER & Concurrence also obtained from the consumer for the

interruption.


1023 Madurai 230 KV SEMBATTY 230 KV230KV SBT - MYVADI # Bkr, CTs and line

entire1. Monthly maintenance work2. Tree cutting work During the LC period the other end is also availing LC. POSSIBLE Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1 0 Approved

1024 Erode 230 KV METTUR TPH230KV MTPH-MTPS FEEDER

BREAKER,CTS AND ISOLATORSFor monthly maintenance works

During the above Lc period 230KV MTPH-AUTO SS Feeder will be in Service and

machine 1,2,3 & 4 in common spell AOH work and machine 4 in individual spell AOH

work and PWD demand meet out by Dam power house units.

postponed Fri, 21-Apr-2017 7:00 Fri, 21-Apr-2017 17:00 1other feeders

would overload

Subject to

EE/SLDC/Erode

approval

1025 Erode 230 KV Udumalpet 400 KV230 KV MYVADI - SEMPATTY FEEDER

BREAKER, CT AND LINE ENTIREMONTHLY MAINTENANCE WORK BOTH END AVAIL LC possible Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1

subject to the load


1026 Erode 110 KV DEVIAKURICHI 230 KV110 KV Deviakurichy-Singipuram feeder- II

Breaker, CTs and Line side isolatorFor Monthly Maintenance work

110KV Deviakurichy - Singipuram feeder- II will be kept radial from Singipuram 230KV

SS end.possible Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1

subject to the

feeder being kept

radial from

singapuram ss

end

Approved

1027 Erode 110 KV THINGALUR 230 KV110Kv Gobi Feeder Breaker, CTs and Line

Isolator.Monthly Maintenance. 110KV Getticheviyur SS will be availing total Shutdown. possible Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 14:00 1

subject to

getticheviyur ss

availing tsd as lc

recommended for

the other end

Approved

1028 Chennai 400 KV Thiruvalam 400 KV 400KV Alamathy feeder - I & II Tandelta Testing

1)400KV Alamathy - I feeder kept in OFF condition at both end & Alamathy -II feeder in

service during the period of Alamathy- I feeder testing.2)400KV Alamathy - II feeder kept

in OFF condition at both end & Alamathy -I feeder in service during the period of

Alamathy- II feeder testing.

Possible OCC

Appd. 129/158Fri, 21-Apr-2017 09:00 Fri, 21-Apr-2017 17:00 1 0 Approved


230 KV

On 110KV Sipcot-TTN-I feeder breaker with

CTs only.For monthly maintenance works.

Â During the L.C period, 110 KV Sipcot SS will be under shut down &110 KV Vagaikulam

SS will be radially fed from 230KV Auto SS/TTN end and no other SS will be affected.POSSIBLE Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1 0 Approved

1030 Chennai 230 KVACHRAPAKKAM 230 KV

& SPKoil lines

230KV ACHARAPAKKAM -KALPAKKAM

FEEDER ENTIRE

TO CARRYOUT MONTHLY MAINTENANCE

WORK,Insulator Replacement work

1.230KV VILLUPURAM FEEDER WILL BE IN SERVICE CONDITION2.HENCE NO

INTERUPTION POWER SUPPLY.Possible Fri, 21-Apr-2017 09:00 Fri, 21-Apr-2017 16:00 1 0 Approved

1031 Erode 110 KV METTUR AUTO 230 KV110 KV K.R.Thoppur -Thumbipady feeder

entire.

For checking of Jumbercone Tightness at Railway

crossing Tower LOC NO:41 & 42 and 66 & 67

Thumbipady 110 KVSS Programmed for shutdown on that day.and K.R.Thoppur SS has

Programmed for Mtce work in this feeder on that daypossible Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1

subject to

thumbipadi ss

availing tsd

Approved

1032 Erode 230 KV METTUR TPH

230KV BUS, Feeders, Breakers, CT's, PT's,

LAS, Earth pits Maintenance (TOTAL BUS

LC)

Annual Maintenance and Testing.

Four Machines at Tunnel Power House is common spell AOH LC and PWD demand meet

out by Dam Power House units.(Total BUS LC required for seven working days from

21.04.2017 to 28.04.2017 on Daily basis)


to be scheduled

after 230 kv mtps

3 to thingalur is

back in service

Subject to

EE/SLDC/Erode

approval

1033 Erode 230 KV THUDIALUR 230 KV 110KV Arasur feeder Br & CTs For monthly mtce works & Annual relay testing The feeder will be radial from other end possible Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 15:00 1

subject to the

feeder being kept

radial from arasur

ss end

Approved

1034 Madurai 230 KV SANKANERI 230 KV230KV Sankaneri-Udayathoor feeder

Breaker,CTs&Lineswitches.


Testing.

During the LC Period There willbe no supply inthe Entire feeder, Other end also LC

applied.POSSIBLE Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 14:00 1 Sub to wind gen Approved

1035 Erode 230 KV ARASUR 230 KV230 KV Arasur - Karamadai feeder Br,CTs

and line side IsolatorFor Monthly maintenance workBoth ends) During the LC Period other 5 Nos of 230 KV Feeders will be in service. possible Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 15:00 1

subject to the load


1036 Erode 110 KV UNJANAI 230 KV110KV puthansanthai-Kalappanaikenpatty

feeder line entireJumper tightness checking During the LC period the KN Patty SS total shutdown possible Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1

subject to kn patty


1037 Erode 230 KV SALEM AUTO 230 KV100MVA Auto Transformer-II, HVII, LVII

Breakers & their CTsMonthly Maintenance work

2Nos. 100MVA Auto Transformer-I & III will be in service and adequate to share the

loads. There will be no interruption to any SS or feeder.possible Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1

subject to the

other auto trs

loading limit

Approved


400 KV HV Breaker for ICT2(410-52) 400KV

Tie Breaker for ICT2 & ICT3 (411-52),230KV

LV Breaker for ICT 2 (206-52) & 400/230KV

ICT2


During the LC period there will be no supply in 400 KV Main Breaker for ICT2(410-52)

400KV Tie Breaker for ICT2 & ICT3 (411-52),230KV LV Breaker for ICT 2 (206-52) &

400/230KV ICT2. hence no substation affected.

POSSIBLE Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1App in 129 occ

/194Approved

1039 Erode 110 KV INGUR 230 KV,Isolators and Line side Isolator

MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 14:00 1

railway traction

feeder 2 to be in

service

Approved

1040 Madurai

GENERATI

NG

STATIONS

KODAIYAR PH2 Generator unit-II

A) Electrical- Monthly maintenance of 1) Exciters

cleaning 2) 55MVA Generator power Transformer 3)

SF6 110KV unit breakerB) mechanical- Monthly

maintenance of TGB oil re circulation

PH-II Machine will be shut down condition. POSSIBLE Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1After s/d of Kod

Ph2Approved


KV

1.110 KV Bargur feeder breaker, CTs & Line

switch 2.Auto Transformer -III with HV- III

Breaker and CTs & LV- III Breaker CTs.

3.Shoolagiri 230KV feeder breaker and CT`s

and Line switch


maintenance wing and Lines wing Programmed Tree

cutting work in 230 KV Karimangalam SS - 110 KV

Bargur SS at Loc No : 86-87 and Loc No: 32-33 and

Neelgiri tree to be remove in Link Line Between 110

Adhiyamankottai SS to Pennagaram SS at Loc No:

69-70

110 KV Bargur and 110/33 KV Penneswaramadam and 110 KV Adhiyamankottai are

availing total shut down. Expected load relief : 60 MW. The station loads will be managed

by keeping Auto Transformer - I & II and 230 KV Mettur feeder in service and also 1 No

Grid feeder in service.


subject to the tsd

relief being

realized and

subject to the 230

kv mettur to

karimangalam

feeder loading

limit; occ

approved

Approved

1042 Erode 110 KV Pallakapalayam230kv

110 KV Thevur #,110 KV BKB-I# ,110 KV

Bus Coupler, LV-I,LV-II,HV-I,HV-II, 230 KV

Gobi #,230 KV K.R.Thoppur # & 230 KV Bus

Coupler.

Tan Delta Value Measurement in CTs. One after another. 0 Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1 repeat of 53835 Not considered


1.110 KV UNJAANI - SANKARI FEEDER

BREAKER,CT AND LINE ISOLATOR

ONLY2.230 KV UNJANAI - KR THOPPUR

FEEDER BREAKER,CT AND LINE

ISOLATOR ONLY

MONTHLY MAINTENANCE WORK110 KV SANKARI FEEDER AVAILING LC ON THAT DAYBOTH ENDS AVAILING LC ON

THAT DAY FOR 230 KV KR THOPPUR FEEDERpostponed Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1

other ends have

not appiled for lc

and to be

scheduled with tsd

Subject to

EE/SLDC/Erode

approval

1044 Erode 230 KV PONNAPURAM 230 KV 230 KV Northern Bus EntireFor tightness checking of all clamps and Alignment

of M-I Isolater Switches.

1. 230KV S.D.PALAYAM # will cut off,2. 230KV O.K.M # will cut off,3. 110KV

PETHAPPAMPATTY # WILL BE KEPT RADIAL FROM 230KV UDT SS UP TO THIS

END4. 110KV THUNGAVY # WILL BE KEPT RADIAL FROM 230KV UDT SS UP TO

THIS END 5. Auto Tr II Will be cut off, as the Loads will be with in the limit of other Two

Auto Trs.6. Hence no SS will be affected.

possible Fri, 21-Apr-2017 10:00 Fri, 21-Apr-2017 17:00 1subject to the load


1045 Erode 230 KV karamadai230KV230KV Karamadai-Arasur feeder breaker,

CTs & CVTs.For maintenance works and P&C testing works. LC programmed at other end also. possible Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 14:00 1

subject to the load



110KV Deviakurichi-Singapuram II Feeder

(Section between Deviakurichi 230KV SS -

Attur 110KV SS)


1)110KV Deviakurichi - singapuram II Feeder breaker & CT's maintenance work availing

Deviakurichi SS. 2)Malleikarai 110KV SS will be availing total shutdown on that

day.3)110KV Deviakurichi-Singapuram II Feeder series switch at attur 110KV SS towards

Deiakurichi Side SS will be Kept Opened.4)110KV Deviakurichi-Singapuram II feeder will

be radially upto attur 110KV SS from singapuram 230KV SS.3)There will be no

interruption of supply to any SS.


subject to

mallikarai ss

availing tsd and

subject to the

feeder being kept

radial from

singapuram ss

end after that

Approved


A)AUTO TRANSFORMER-I, HV-I, LV-I

BREAKERS AND CT's.B) 110KV NEMMELI

THIPPIYAKUDI-PUDUKKOTTAI FEEDER

BREAKER, CT's AND LINE

ISOLATOR.(NOW RADIAL FROM 230KV

NEMMELI THIPPIYAKUDI SS TO 110KV

KARAMBAKUDI SS) ONE AFTER

ANOTHER. C) 110KV N.T.KUDI -

KAMBAKUDI FEEDER (LINE PORTION

BETWEEN 230KV N.T KUDI SS TO 110 KV

URANIPURAM SS)


AEE/MTC/N T KUDI.B) FOR MONTHLY

MAINTENANCE WORK BY AEE/MTC/N T KUDI.C)


AE/LINES /PATTUKKOTTAI

1) DURING THE LC PERIOD, 110/11KV URANIPURAM SS, 110KV KARAMBAKUDI SS

WILL AVAIL SHUTDOWN2) AUTO TRANSFORMER-II IN SERVICE. 3) IF NECESSARY

110KV N T KUDI-THANJAVUR FEEDER TIE WILL BE OPENED AT 230KV NT KUDI

SS.4) NO INTERRUPTION TO ANY SS AND ALL OTHER FEEDERS ARE TIED

CONDITION.

POSSIBLE Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1Sub to load

conditionApproved

1048 Erode 230 KV KARUVALUR 230 KV230/110kv Autotransformer I HV/LV breaker

CTs and LASFor monthly maintenance work

110kv Annur SS and 110kv sellampampalyam SS total shutdown and 110kv Arasur II

feeder fed from 230kv Arasur SSpossible Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1

subject to the tsd

relief being

realized

Approved

1049 Erode 110 KV KARUVALUR 230 KV110kv Annur feeder breaker CTs and line

switch

For monthly maintenance work and PMI by palladam

lines110kv Annur SS total shutdown possible Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1

subject to annur



1.110KV UNJANAI - PARYTHIPALLY

FEEDER BREAKER, T'S ANDLINESIDE

ISOLATOR ONLY

FOR MONTHLY MAINTENANCE WORKDURING THE L.C PERIOD, PARUTHIPALLY 110KVSS ALSO AVAILING TOTAL

SHUTDOWNpossible Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1

subject to

paruthipalli ss

availing tsd

Approved

1051 Erode 230 KV METTUR AUTO 230 KV230KV Auxiliary Bus with 230KV Bus coupler

BreakerFor Annual Maintenance work During the LC period 230KV Main Bus will be in service possible Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1

subject to main

bus being in

service

Approved


For replacement of flash over insulators at Loc

No.42,44,72 and maintenance of 110 KV Nainar

palayam ABS and checking of jumper tightness in

Railway crossing in Chinna salem spur line Loc 30-

31

Durind the period of LCThe 110 KV Chinnasalem SS will be availing Total

shutdown.Hence NO Interruption of SupplyConcurrence obtained from SE/O/VillupuramPossible Fri, 21-Apr-2017 09:00 Fri, 21-Apr-2017 17:00 1

Subject to load

conditionApproved

1053 Chennai 230 KV MOSUR 230 KV 230 KV TIE BREAKERFOR ATTENDING MONTHLY MAINTENANCE

WORKIDLY CHARGED CONDITION Possible Fri, 21-Apr-2017 09:00 Fri, 21-Apr-2017 14:00 1 0 Approved


110kv COIMBATORE-ARASUR FEEDER

SECTION BETWEEN 110KV KALLIMADAI

SS AND 110KV IRUGUR SS

PMI WORKS BY AE / LINES / COIMBATORE

1. 110KV KALLIMADAI SS WILL BE FED FROM 230KV COIMBATORE SS.2. 110KV

IRUGUR SS, KPR EHT SERVICE AND SULUR RAILWAY TRACTION EHT SERVICE

WILL BE FED FROM 230KV ARASUR SS.


110 kv okm to

irugur feeder

section lc

recommended

Subject to

EE/SLDC/Erode

approval


KV

110 KV APKM - PPTY # Br., CT., and line

switch only.For Monthly Maintenance Works.

During the LC period the 110 KV Paraipatty SS loads will be transferred to 110KV APKM -

T.Kallupatti feeder. Hence no SS will be affected.POSSIBLE Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 13:00 1 0 Approved


KV

1.110kv Thevur#,2.110kv BKB-I#,3.110 kv

Bus Coupler,4.Auto Transformer-I HV &LV

side,5.AutoTransformer-II HV &LV

side6.6.230 kv Gobi #7.K.R.Thoppur #8.230

kv Bus coupler CTs,Breaker.

Tan Delta Value measurement in CTs

LC to be availed one by one 1.Thevur 110 kc ss proposed TSD,2.Radilally fed from other

end 3.Auto Transformer-I will be mange 110 kv BKB-I # and sankari-I# Load and Auto

Transformer-II will be mange the 110 kv Sankari-II#,Barrage3 IV # and thevur # load

4.Auto II Transformer will be manage the load 5.Auto I Transformer will be manage the

load 6.Radially fed from other end 7.Radially fed from other end 8.Both Auto

Transformers load Transfer to 230 kv Bus I


will be issued one

by one subject to

the load condition

existing only

Approved


KV

1.110kv Thevur#,2.110kv BKB-I#,3.110 kv

Bus Coupler,4.Auto Transformer-I HV &LV

side,5.AutoTransformer-II HV &LV

side6.6.230 kv Gobi #7.K.R.Thoppur #8.230

kv Bus coupler CTs,Breaker.

Tan Delta Value measurement in CTs

LC to be availed one by one 1.Thevur 110 kc ss proposed TSD,2.Radilally fed from other

end 3.Auto Transformer-I will be mange 110 kv BKB-I # and sankari-I# Load and Auto

Transformer-II will be mange the 110 kv Sankari-II#,Barrage3 IV # and thevur # load

4.Auto II Transformer will be manage the load 5.Auto I Transformer will be manage the

load 6.Radially fed from other end 7.Radially fed from other end 8.Both Auto

Transformers load Transfer to 230 kv Bus I

0 Fri, 21-Apr-2017 9:00 Fri, 21-Apr-2017 17:00 1 repeat of 53835 Not considered

1058 Erode 230 KV Salem 400 KV230 KV Unjanai# - Its CTs, BREAKER, BUS

& LINE SWITCHESBoth end Monthly Maintenance Work Both end Monthly Maintenance Work postponed Fri, 21-Apr-2017 8:00 Fri, 21-Apr-2017 14:00 1

230 kv unjanai to

puthansanthai

feeder lc

recommended

Approved

1059 Chennai 230 KV Kadapperi Auto Transformer 3 Monthly Maintenance Work Possible Sat, 22-Apr-2017 09:00 Sat, 22-Apr-2017 17:00 1possible with CBD

concurrenceApproved

1060 Madurai 110 KV SRPUDUR 230 KV110 KV SR Pudur - Kodayar II feeder section

between Thuckalay and Kodayar PH II.


.

During the LC period the 110 KV SRP-KDR II # radial from SRP upto Thuckalay.110/11

KV Marthandam, Kuzhithurai and Munchirai SS will avail total shut down as approved by

SE/O/TIN and SE/KKEDC/Ngl. Parasalai SS will avail Back feeding from KSEB.

Necessary concurrence may be obtained from SRLDC/ Bangaluru. Hence no SS will be

affected.


sub to nadikavau

total s/d.App in

129 occ/163 on

22.4.17. SRLDC

addressed for

revised date

Approved

1061 Chennai 230 KV SPKoil lines Auto Transformer 2 Monthly Maintenance Work Possible Sat, 22-Apr-2017 10:00 Sat, 22-Apr-2017 17:00 1 approved Approved

1062 Chennai 230 KV SPKoil lines 230 KV Kalpakkam-Echur feeder Insulator Replacement work Possible Sat, 22-Apr-2017 10:00 Sat, 22-Apr-2017 17:00 1 approved Approved

1063 Erode 230 KV SINGARAPET 230 KV230 KV Vinnamangalam # Breaker, CTs &

line isolators




of supplypostponed Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 15:00 1

to be scheduled

with tsd in

vinnamangalam

ss fed areas

Approved

1064 Chennai 230 KV Nokia 230 KV Auto Transformer MONTHLY MAINTENANCE WORK Possible Sat, 22-Apr-2017 09:00 Sat, 22-Apr-2017 17:00 1 0 Approved

1065 Erode 230 KV ANTHIYUR 230 KV 100 MVA, AUTO TRANSFORMER I MONTHLY MAINTENANCE WORKSDURING THE LC PERIOD 230/110KV AUTO TRANSFORMER II WILL BE IN SERVICE.

HENCE NO SS WILL BE AFFECTED.postponed Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 15:00 1

tan delta

measurements lc

recommended for

pallakkapalayam

ss

Approved

1066 Madurai 110 KV KAVANOOR 230 KV110 KV KAVANOOR-VALINOKKAM-ARKAY

# SEC. BET. VALINOKKAM & KEELAKARAILINE MAINTENANCE WORKS

FEEDER TO BE KEPT RADIAL FROM ARKAY UPTO KEELAKARAI & FROM

KAVANOOR UPTO VALINOKKAMPOSISBLE Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1

Due to Arkay and

Keelakari LCApproved

1067 Madurai 110 KV ABAN110KV Papanasam-Servalar#1 Breaker with

CTFor carry out Monthly Maintenance work

Present PWd Demand is 200C/S.During the LC period, the servalar machine is in under

stand by condition. Hence no ss will be affected please.POSSIBLE Sat, 22-Apr-2017 10:00 Sat, 22-Apr-2017 12:00 1

After s/d of SVLR

m/cApproved

1068 Chennai 110 KV VEERAPURAM 230 KV110KV BUS Section -II(Including, bus coupler-

II,110 KV S.P.Koil #-II&110 KV M/S Infosys)Quarterly Maintenance - Annual Relay Test No supply to M/S.Infosys (Concurrence obtained from M/S Infosys) Possible Sat, 22-Apr-2017 09:00 Sat, 22-Apr-2017 16:00 1

Subject to load

conditionApproved

1069 Madurai 110 KV SERVALAR Servalar PH 110KV switch yard entire. For carrying out monthly maintenance work.

During the LC period 110KV PPM-SVLR feeders 1& 2 earth switches are to be closed at

both end.The present PWD demand is 200 CUSECS. The work will be carried out during

Servalar machine is under stand by condition.Hence there will be no loss of generation.

POSSIBLE Sat, 22-Apr-2017 10:00 Sat, 22-Apr-2017 16:00 1After s/d of SVLR

m/cApproved

1070 Madurai 110 KV KODIKURICHY 230 KV110KV Tenkasi - Papanasam feeder breaker

with CT and Line IsolatorsFor Monthly Maintenance work

1110kv Tenkasi SS, Kadayam,Shenkottai SS will be under monthly shudown 2110KV

Keelapavoor wind farm SS will be fed from 110KVPapanasam-Kayathar# 3Papanasam

PH will be tied with 110 KV Kayathar - Papanasam # by closing of Bus coupler switch at

rastha SS End.


1071 Madurai 230 KV KAYATHAR 230 KVOn 230KV Kayathar - Checkannurani-II

feeder breaker with CT & entire line


Tower inspection work.During the LC period, there will be no supply in the entire feeder. Hence no SS affected. POSSIBLE Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1 0 Approved

1072 Erode 230 KV THINGALUR 230 KVAuto Transformer II,HV 2 & LV 2's Breakers

with CTsMonthly Maintenance Works 110KV Erode SS availing Total Shutdown. possible Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1

subject to the

other auto tr

loading limit

Approved

1073 Chennai 110 KV Alamathy 400 KV110KV AVADI-I & 110KV AVADI-II FEEDER

(ONE BY ONE)ANNUAL RELAY TESTING BY GRT WING.

DURING THE ABOVE SHUTDOWN PERIOD 110KV AVADI-I & 110KV AVADI-II

FEEDER (ONE BY ONE) WILL NOT BE IN SERVICE.Possible Sat, 22-Apr-2017 10:00 Sat, 22-Apr-2017 17:00 1 Already applied Already approved

1074 Madurai 230 KV PASUMALAI 230 KV110 KV Pasumalai - Anupankulam # BKR &

CT only.Maintenance Works of BKr & CT,LI

1) Feeder will be kept radial from Anupankulam feeding Virudhunagar. Aviyur and

Railway Traction loads 2) Hence No interruption of Supply to any SS0 Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 14:00 1 Wrong entry Wrong entry

1075 Erode 110 KV ANTHIYUR 230 KV110 KV ANTHIYUR FEEDER BREAKER CT

& LINE SWITCH.MONTHLY MAINTENANCE WORKS

DURING THE LC PERIOD 110/22KV ANTHIYUR SS WILL AVAIL TOTAL SHUT DOWN.

NO SS WILL BE AFFECTED.possible Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 15:00 1

subject to anthiyur


1076 Madurai 110 KV KODIKURICHY 230 KVOn 110KV Papanasam-Servalar I feeder

entire line.

For tree cleareance work and jumper bolt

rectification work at loc no: 13 R phase

During the LC period, Servalar powerhouse generation will be shutdown condition. 2)

EE/O Papanasam also applied for monthly Maintenance work.POSSIBLE Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1

After s/d of SVLR

m/cApproved

1077 Madurai 230 KV PUGALUR 230 KV

230KV Pugalur - Renganathapuram feeder

Breaker, CTs & line switch and entire line

only

Monthly maintenance work.During the LC period there will be no supply in 230 KV Pugalur - Renganathapuram

feeder since other end also availing L.C on the same periodPOSISBLE Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1

Due to CKNI ICT

Loading

Subject to

EE/SLDC/ Madurai

approval


1. 230KV UNJANAI - P.CHANTHAI FEEDER

BREAKER , CT'S AND LINESIDEISOLATOR

ONLY.

FOR MONTHLY MAINTENANCE WORKDURING THE L.C PERIOD ,P.CHANTHAI 230KVSS ALSO PROGRAMMED TO AVAIL

L.C ON THE SAME FEEDER ON THAT DAYpossible Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1

subject to the load



KV

On 230 KV TTN - TTPS -II # breaker with CT

bus and line side switchesFor Monthly Maintenance Work No SS will be affected. POSSIBLE Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1 Sub to TTPS gen Approved

1080 Madurai 110 KV ALAGARKOIL 230 KV110KV ALKL-SMPTY 1 # breaker with

C.T.only.for monthly maintenance work .

During the L.C period the feeder will be radial from other end,Hence there will be no

interruption of supply please.POSSIBLE Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 14:00 1

SUB TO LOAD

CONDITIONApproved

1081 Erode 110 KV Salem 400 KV110 KV Salem I # - Its CT, BREAKER, BUS &

LINE SWITCHESMonthly Maintenance Work Both end avail LC, Salem Traction will fed from Salem II #. possible Sat, 22-Apr-2017 8:00 Sat, 22-Apr-2017 14:00 1

subject to the

feeder 2 loading

condition

Approved


STATION 230 KV230KV CKNI-Kayathar-II feeder Entire


Maintenance WorkDuring LC Period there will be no supply in the entire feeder POSSIBLE Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1 0 Approved


110 KV THENI-PERIYAR II # (SECTION

BETWEEN THEVARAM SS AND CUMBUM

SS)

FOR MONTHLY MAINTENANCE AND


NO INTERRUPTION TO ANY SS THEVARAM SS WILL BE RADIAL FROM THENI SS &

CUMBUM SS WILL BE RADIAL FROM PERIYAR POWER HOUSE.POSSIBLE Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1

Sub to load

conditionApproved


110KV Kadalangudy- Aduthurai- Neyveli TS I

feeder (Portion between Kadalangudy,

Aduthurai and Thirupanandal SS)


2)Maintenance work

No interruption to any SS. 110KV Thirupanandal and Thirupurambium SS proposed to

shutdown. 110KV Jayankondam and Papakudy SS supply fed from Neyveli TS I.POSSIBLE Sat, 22-Apr-2017 10:00 Sat, 22-Apr-2017 16:00 1

sub to Ney

LoadingApproved

1085 Madurai 110 KV kinnimangalam 230 KV110KV KNMLM - Thirumangalam -

Pasumalai #Monthly maintenance works for Breaker and CT

Then feeder will be radially fed from 230kv SS PSQ. Thirumangalam SS availing total

shutdownPOSSIBLE Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 13:00 1 0 Approved


KV

230KV Unjanai feeder CB, CTs, CVTs, Wave

Traps and 230KV Switches.For regular maintenance works.

During LC period230KV Pugalur and Deviakurichy feeders will be kept tied with

grid.230KV Unjanai end also availing LC in the same feeder at opposite end.No supply

interruption.

possible Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1subject to the load


1087 Madurai 110 KV KARAIKUDI 230 KVOn 110KV KKDI- Alkarkoil #'r S/B KKDI -

TPR.For Tree Cutting Work.

During the L.C Period 1) 110KV KKDI- Alakarkoil #'r will be radial from other

End.2)110KV Tirupathur & A.Thekkur SS under TSD. Hence there will be No interruption

of Supply.



230 KV

1)230KV RNPM-Pugalur # Br,CT's & line

switch2)230KV RNPM - Pugalur # Entire line1)Monthly Maintenance works2)Tree cutting works During LC period other end also programmed for availing LC in this feeder. POSSIBLE Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 16:00 1

Sub to CKNI ICT

LoadingApproved


A) 110 KV KAVANOOR-R.S.MADAI-VGTPS

# BR. & C.T. B) 110 KV KAVANOOR-

R.S.MADAI-VGTPS # SEC. BET.

KAVANOOR AND R.S.MADAI


MAINTENANCE WORKSFEEDER TO BE KEPT RADIAL FROM VGTPS POSSIBLE Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1 0 Approved


230kv Main Bus Section Beyond 230kv SW

89MC & 230kv PoWerTr 3 & 4,HV &

LVBreaker

1.Annual Maintenance of 230kv Bus section beyond

Bus couplr Sw 89MC and Main Bus side sw of Auto

Tr, Power Tr 3 &4

1.During the LC period the Auto Tr., Will be Fed from Transfer BusCoupler Breaker.

2)There willbe nosupply to Power Tr3 &4. Powr Tr3 & 4 loads willbe fed from other Power

Trs


Sub to wind gen

and no blocking of

wind gen

Approved


1. 110KV Trichy - Kovilur feeder breaker,

CTs, line isolator and Line portion between

230KV SS Trichy and 110KV Puthanatham

SS.


inspection

During LC period, 1) 110KV Kovilur feeder Line switch towards Trichy 230KV SS will be

kept opened at 110KV Puthanatham SS. 2) 110KV Kovilur feeder Line switch towards

Puthanatham SS will be kept opened at Trichy 230KV SS. 3)110KV Manapparai SS and

Kavalkaranpatty 110KV SS availing total shut down for monthly maintenance works. 4)

110KV Trichy - Kovilur feeder will be radial from 230KV Renganathapuram SS up to

110KV SS Puthanatham SS. 5) All other 110KV feeders will be in tied condition. 6) There

will be no interruption of supply to any of the intermediate SS. 7) Necessary concurrence

to be obtained from 230 KV Renganathapuram SS.


1092 Madurai 110 KV TRICHY 230 KV1) 110KV BUS ENTIRE 1) 110KV BUS

ENTIRE

1. All 110KV bus isolator maintenance work, 2.

110KV bus coupler alignment checking and

maintenance work.

0NOT


Feeder condition

not mentionedNot considered

1093 Madurai 110 KV THIRUVARUR 230 KV 110KV BUS LC Entire

Erection of Bus sectionalizing arrangement work,

erection of 110KV Bus Coupler Breaker -II Work,

Shifting, Erection of 1No. 110KV Bus PT & 110KV

Bus Maintenance works.

During the LC period the following SS has programmed total shutdown on the same day.

Hence there will be no interruption of supply to (1) 110 KV Nagappattinam SS (2) 110 KV

Thiruthuraipoondi SS (3)110 KV Thirukuvalai SS (4)110 KV Voimedu SS.(5) 110KV

Surakudi SS - Karaikkal (6)110 KV Kovilvenni SS (7)110KV Vaduvur SS (8) 110 KV

Kodavasal (9) 110KV Thiruvarur SS.(10) 110 KV Thiruvarur - Thanjavur feeder breaker tie

will be opened at Thiruvarur end.110 KV Thanjavur urban SS,110KV Manimandapam SS,

110 KV Mariamman kovil SS, 110 KV Ayyampettai SS, 110 KV Poondi SS and loads will

be fed radially from 110KV Grid SS/Thanjavur. (11) 110 KV Mannargudi SS load will be

fed radially from T(K)GTPS, 110KV Mannargudi feeder tie opened at Thiruvarur end. (12)

110 KV Peralam SS load will be fed radially from 110KV Grid SS Mayiladuthurai, 110KV

Mayiladuthurai feeder tie opened at Thiruvarur end. (13) 110KV KGTPP feeder tie opened

at Thiruvarur end. (14) 110 KV T(K)GTPS express feeder tie will be opened at Thiruvarur

end. (15) 110 KV Narimanam I and II feeders will be hand tripped at Thiruvarur end. (16)

110 KV T.R.Pattinam feeder will be hand tripped at Thiruvarur end. (18) Auto Transformer

I , II & III will be kept isolated. (19) All the 230 KV feeders will be in tied condition. (20)

POSSIBLE Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1 sub to Total s/d Approved

1094 Madurai 110 KV SURULIYAR110 KV Suruliyar - Kayathar feeder breaker

with CT onlyFor monthly maintenance work.

During the LC period, the feeder will be radially fed from other end upto Suruliyar PH. No

ss will be affected.POSSIBLE Sat, 22-Apr-2017 10:00 Sat, 22-Apr-2017 14:00 1 0 Approved

1095 Madurai 110 KV THIRUVARUR 230 KV 110KV Thiruvarur - Thiruthuraipoondi feederLine premansoon Inspection and rectification work,

Breaker, CT's and Isolator maintenance work.

During the LC period 110KV Thiruthuraipoondi SS, 110KV Thirukuvalai SS & 110KV

Voimedu SS availed shunt down on the same day. Hence there will be no interruption of

supply to any other substation.


1096 Chennai 110 KV TONDIARPET 230 KV 110 KV SEMBIUM FEEDER FOR ROUTINE MAINTENANCE WORKS.DURING THE PERIOD OF SHUTDOWN , EXCEPT 110 KV SEMBIUM FEEDER ALL

OTHER FEEDERS AND EQUIPMENTS WILL BE IN SERVICE.Possible Sat, 22-Apr-2017 09:00 Sat, 22-Apr-2017 13:00 1 0 Approved

1097 Madurai 110 KV SEMBATTY 230 KV110KV Capacitor bank I and II Bkr, CTs and

cellsMonthly maintenance work During the LC period the capacitor bank willbe in switched off condition. 0 Sat, 22-Apr-2017 10:00 Sat, 22-Apr-2017 17:00 1

SE/O/MDU

ApprovalApproved

1098 Erode 230 KV Udumalpet 400 KV230 KV MYVADI - PUGALUR FEEDER

BREAKER, CT AND LINE ENTIREMONTHLY MAINTENANCE WORK BOTH END AVAIL LC possible Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1

subject to the load


1099 Chennai 110 KV ARNI 230 KV110KV Arani -Singarapet Feeder I

Breaker,110KV CTs and line isolator

Monthly Maintenance work, Breaker clamp tightening

work, 110KV CT Clamp replacement, and Line

Isolator Bolt Nuts replacement work

During the Period of Shut down the 110KV Polur SS is availing Total Shut down. 110KV

Adamangalam SS loads already fed from 230KV T.V Malai SS. Hence there will be no

interruption of Supply.


1100 Chennai 110 KV ARNI 230 KV110KV Arani - Singarapet II Feeder, 110KV

CTs and Line isolator

For 110KV Breaker Monthly Maintenance work, CT

Clamp, and Bolt Nuts replacement work.

At present the 110KV Arani- Singarapet II feeder is in Hand tripped condition. Hence there

will be no Interruption of supply.Possible Sat, 22-Apr-2017 09:00 Sat, 22-Apr-2017 14:00 1 0 Repeat

1101 Chennai 230 KV Thiruvalam 400 KV 230Kv Thiruvalam Link -I feeder Maintenance & GRT periodical relay testing 1)230Kv Thiruvalam Link -I feeder kept in OFF condition at both end. Possible Sat, 22-Apr-2017 09:00 Sat, 22-Apr-2017 17:00 1Subject to load

conditionApproved


1.110KV Coimbatore Feeder Breaker and

CTs2.Auto Transformer I(HV, LV breakers,

CTs and LAS)

For Monthly Maintenance Works Scheduled Shutdown at 110/11KV Coimbatore SS possible Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 16:00 1

subject to

coimbatore ss

availing tsd

Approved

1103 Madurai 230 KV KADALANGUDI 230 KV230KV Kadalangudy- Neively TS II feeder

entire


Kadalangudy end.No interruption to any SS. All other feeders will be in tied condition. POSSIBLE Sat, 22-Apr-2017 10:00 Sat, 22-Apr-2017 17:00 1

Sub to load

conditionApproved

1104 Madurai 110 KV kamuthi 400 KV110 KV ALANGULAM # BREAKER & CT


110 KV ALANGULAM SS WILL BE BED FEOM 230/110 KV KODIKURICHI SS .HENCE

NO SUPPLY AFFECTEDPOSSIBLE Sat, 22-Apr-2017 10:00 Sat, 22-Apr-2017 17:00 1

Sub to wind gen

and no blocking of

wind gen

Approved

1105 Chennai 110 KV ACHRAPAKKAM 230 KV110KV ACHARAPAKKAM - VANDAVASI

FEEDER BREAKERS AND CT'STO CARRYOUT MONTHLY MAINTENANCE WORK 1.110KV VANDAVASI FEEDER WILL BE RADIALLY CHARGED FROM OTHER END. Possible Sat, 22-Apr-2017 00:00 Sat, 22-Apr-2017 00:00 1 0 Approved

1106 Erode 110 KV SINGARAPET 230 KV110 KV Tirupattur # Breaker, CTs & line

isolators



During the period of LC 1.110 KV Tirupattur SS end Total shutdown programmed,2.110

KV Tirupattur Railway traction SS load will be fed to 230 KV SS Vinnamangalam through possible Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 15:00 1

subject to

thiruppathur ss

availing tsd and

traction supply

being transferred

to vinnamangalam

ss

Approved

1107 Erode 230 KV SINGARAPET 230 KV Auto transformer I, LV I Breaker & CTsTo carry monthly maintenance work by


During the LC period1. Auto Transformer I and LV I breaker will be in off condition2. Auto

Transformer II and III will be in service3. 110KV Tirupattur SS total shutdown approved

(42MW)and 110KV Tirupattur # Breaker will be in hand trip condition at Singarapet end4.

110KV Tirupattur Railway traction SS loads will be fed from Vinnamangalam 230KV SS

5. The 110KV Link I, Link II and Ramiyanahally feeders will be in service


subject to the

other auto trs

loading limit

Approved

1108 Madurai 230 KV SAMAYAPURAM 230 KV100 MVA Auto Transformer-II, HV-II, LV-II,

Breakers , CT's, and isolatorsMonthly Maintenance Work

During the above Shutdown Period 100 MVA Auto Transformer I will be in service. No

interruption to any other SSPOSISBLE Sat, 22-Apr-2017 10:00 Sat, 22-Apr-2017 17:00 1 0 Approved

1109 Erode 110 KV THUDIALUR 230 KV 110KV Capacitor Bank I & II one by one For monthly mtce works During the LC period, other Capacitor Bank will be in service approved Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1

subject to the

voltage level in the

grid

Approved

1110 Madurai 230 KV SRPUDUR 230 KVa) On 230 KV SR Puthur - Sankaneri feeder

Entire

a) Tower toTower Inspection.Checking of

Healthyness of Jumper b. Annual relay testing work

During the LC period 230 KV SR Puthur -Koodankulam feeder will be in service. Hence

No SS will be affected.POSSIBLE Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 14:00 1 sub to wind gen Approved

1111 Madurai 230 KV SANKANERI 230 KV230KV Sankaneri-SRputhoor feeder

Breaker,CTs&Lineswitches.


Testing.

During the LC Period There willbe no supply inthe Entire feeder, Other end also LC

applied.POSSIBLE Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 14:00 1 sub to wind gen Approved

1112 Erode 110 KV ARASUR 230 KV110 KV Capacitor Banik -III Br,CTs and

Cellunits.For Monthly maintenance work During the LC Period other 2 Nos of Capacitor bank will be in service. approved Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 12:00 1

subject to the

voltage level in the

grid

Approved

1113 Erode 110 KV Singarapet 110 KV110 KV SIPCOT # SF6 Bkr,CTS & Line

IsolatorMonthly maintenance work

During the LC period 110KV Pochampally SIPCOT SS availing total shutdown, hence no

interruption of supplypossible Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 15:00 1

subject to

pochampalli sipcot

ss availing tsd

Approved


1. 110KV Trichy - Kovilur feeder breaker,

CTs, line isolator and Line portion between

230KV SS Trichy and 110KV Puthanatham

SS.

For over head crossing the proposed LILO of

Alandur-Alagarkoil 230kv line at Mondipatty 230kvss

(section between Manaparai & Alandur)

During LC period, 1) 110KV Kovilur feeder Line switch towards Trichy 230KV SS will be

kept opened at 110KV Puthanatham SS. 2) 110KV Kovilur feeder Line switch towards

Puthanatham SS will be kept opened at Trichy 230KV SS. 3)110KV Manapparai SS and

Kavalkaranpatty 110KV SS availing total shut down for monthly maintenance works. 4)

110KV Trichy - Kovilur feeder will be radial from 230KV Renganathapuram SS up to

110KV SS Puthanatham SS. 5) All other 110KV feeders will be in tied condition. 6) There

will be no interruption of supply to any of the intermediate SS. 7) Necessary concurrence

to be obtained from 230 KV Renganathapuram SS.

0 Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1 repeat Repeat

1115 Erode 230 KV SALEM AUTO 230 KV110KV Singapuram Feeder-II Breakers, and

CT's.Monthly Maintenance work.

1. 110KV Singapuram feeder-II feeder will be radially fed from other ends. 2. There will be

no interruption to any SS or feeder.possible Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1

subject to the

feeder being kept

radial from

singapuram ss

end

Approved

1116 Erode 230 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION postponed Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 14:00 1

ponnapuram ss

end auto tr lc

recommended

Approved

1117 Erode 110 KV INGUR 230 KV110KV Ponnapuram # II Breaker, CTs,

,Isolators and Line side IsolatorMONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION postponed Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 14:00 1

ponnapuram ss

end auto tr lc

recommended

Subject to

EE/SLDC/Erode

approval

1118 Madurai 110 KV kamuthi 400 KV110 KV UTHUMALAI # BREAKER AND CT


110 KV UTHUMALAI SS ALSO PROGRAMMED SHUTDOWN ON SAME DATE ,NO SS

AFFECTEDPOSISBLE Sat, 22-Apr-2017 10:00 Sat, 22-Apr-2017 14:00 1

SUB TO WIND

GEN.

Approved Subject to

wind Generation


KV110KV Durainallur feeder

Monthly Maintenance work,CT clamp and bolt, nuts

replacement workduring the period of shutdown the 110KV Durainallur SS availing total shut down Possible Sat, 22-Apr-2017 10:00 Sat, 22-Apr-2017 17:00 1 0 Approved

1120 Erode 230 KV PONNAPURAM 230 KV AUTO-II ,HV-II,LV-II Breaker and Its CTs Monthly Maintenance works.



TO THIS END 3. 110KV DHARAPURAM SS WILL BE AVAIL TOTAL SHUTDOWN ON

22.04.20173. HENCE, IT IS EXPECTED THAT THE LOADS WILL BE WITH IN THE



subject to the load

condition existing

and the other auto

trs loading limit

Approved

1121 Madurai 110 KV KAYATHAR 230 KV110 KV Kayathar - Kodayar # breaker with

CT only.For Monthly Maintenanace work During the LC period other end also avails LC. Hence, No ss affected POSSIBLE Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1 0 Approved


KV

22.04.2017 ---Auto Transformers No.II &

110KV V.patty #, Tirupattur # breakers,

For replacing the defective surge monitors in

230/110 KV LAS, for carrying out routine monthly

maintenance works.




dt:21.03.2017.2,2,During the totalshutdown on 22.04.2017 , there will be no supply to

following 110/11 KV sub station,1) Chinnavarikkam SS, 2) Pernambut SS,3) Paravakkal

SS,4) Vaniyambadi SS,5) Alangayam SS.


1123 Erode 110 KV Krishnagiri 110 KV 110 KV Kovilvenni - Vaduvur feeder. For carrying out premonsoon inspection works.During the LC period,1) Vaduvur 110 KV SS will avail shutdown on the same day,2) no

supply interruption to any SS.POSSIBLE Sat, 22-Apr-2017 10:00 Sat, 22-Apr-2017 17:00 1 0 Approved

1124 Madurai 110 KV THANJAVUR 230 KV110 KV and 230 KV Bus-Coupler breakers

(one by one)


AEE/Mtce/Thanjavur.

During the LC period,1) all 110 KV & 230 KV feeders will be in tied condition,2) 230 KV

Bus-Coupler breaker is already kept in standby condition,3) no supply interruption to any

SS.



A) 110KV NEMMELI THIPPIYAKUDI -

PATTUKKOTTAI-I FEEDER BREAKER, CT's

AND LINE ISOLATOR. B) 110KV NEMMELI

THIPPIYAKUDI - PATTUKKOTTAI-I FEEDER

ENTIRE.


AEE/MTC/NEMMELI THIPPIYAKUDI.B)



1) DURING THE LC PERIOD 110KV PATTUKKOTTAI, PATTUKKOTTAI URBAN SS

WILL AVAIL TOTAL SHUTDOWN.2) DURING THE LC PERIOD 110KV PERAVURANI,

SETHUBAVACHITRAM AND KEERAMANGALAM SS WILL BE FED FROM 110KV

NEMMELI THIPPIYAKUDI - PATTUKKOTTAI-II FEEDER.3) NO INTERRUPTION TO

ANY OTHER SUBSTATIONS AND ALL OTHER 110KV FEEDERS ARE TIED

CONDITION. 4) If necessary, 110KV Kovilkalappal-Madukkur-Pattukkottai tie will be

created (by closing the 110KV Line Isolator (switch No.2) at 110KV Madukkur SS and

110KV Madukkur feeder Breaker hand tripped condition at 230KV N T Kudi SS.

POSSIBLE Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1Sub to load

conditionApproved

1126 Madurai 230 KV PERAMBALUR 230 KV1)230/110KV Auto-III,HV-III,LV-III Breakers

CT'S & Isolaters only.

For monthly maintenance works and annual

maintenance ralay test by wing /GRT/Trichy

During above period of shut down1)110KV Kallakudy -I feeder and 110KV DSSL

(Krishnapuram)feeder tie will be opened at Perambalur SS. 2)The remaining loads will be

fed Through Auto Transfermer III(100MVA) of Perambalur Auto SS.


1127 Erode 230 KV KARUVALUR 230 KV230 /110kv Autotransformer - II HV/LV

breaker CTs and LASFor monthly maintenance work

110kv Avinashi SS total shutdown and 110kv Karuvalur - Arasur II feeder kept radial from

230kv Arasur and 110kv Earipalayam SS fed from 230kv Arasur SSpossible Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1

subject to the tsd

relief being

realized

Approved

1128 Erode 110 KV KARUVALUR 230 KV110kv Karuvalur - Arasur I feeder breaker

CTs and line switch


palladam lines

110kv AVINASHI SS TOTAL SHUTDOWN AND 110kv Earipalayam SS fed from 230kv

Arasur SS radiallypossible Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1

subject to avinashi


1129 Erode

GENERATI

NG

STATIONS

KUNDAH PH2

UNIT-I GENERATTOR SF6 BREAKER,


ACCESSIORIES

FOR MONTHLY MAINTENANCE WORK SF6 BREAKER OFF IN CONDITION TOP AND BOTTOM BUS OPEN IN CONDITION 0 Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1 SLDCErode Approved

1130 Erode 110 KV KARAMADAI 230 KV110KV Jagathala spurline on 110KV

Thudiyalur-Sandinallah Main Line.

PMI works in between Loc.01 and 21 by

AE/Lines/Kattabettu

At Kattabettu switching station, the Switch 'S2'& ;S3' (Bottom)Switches will be opened

and switch 'S3possible Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1

subject to

jagathala ss

availing tsd and

the supply being

extended to

kothagiri and

kattabettu ss from

110 kv mtplm to

mathampalayam

feeder

Approved


KV

1. Autotransformer - II, Breaker, CT's and

LAS,2. 110 KV Tiruvannamalai Link #,

Breaker, CT's and Line Isolator,3. 110 KV

Tiruvannamalai - Vinnavanur #, Breaker,

CT'and Line Isolator.


During the period of L/C time,1. 110 KV Tiruvannamalai SS & 110 KV Vinnavanur SS

availing total S/D,2. Autotransformer-II will be OFF condition,3. Autotransformer - I will be

in service and cater the station loads. Hence there is no interruption of supply please.


conditionApproved

1132 Erode 110 KV PYKARA110KV PYKARA - MOYAR 2 # (BREAKER

AND CT)FOR MONTHLY MAINTENANCE WORK NIL possible Sat, 22-Apr-2017 8:00 Sat, 22-Apr-2017 17:00 1

feeder 1 will be in

serviceApproved

1133 Chennai 110 KV CUDDALORE 230 KV Section between SASL Co Gen to

Eachangadu SS

For checking jumper tightness at railway crossing

locations. Loc.Nos. 3 - 4

Durind the period of LCHence NO Interruption of SupplyConcurrence obtained from

SE/O/VillupuramPossible Sat, 22-Apr-2017 09:00 Sat, 22-Apr-2017 17:00 1

Concurrence from

SLDC/MaduraiApproved

1134 Chennai 110 KV CUDDALORE 230 KV110 KV Neyveli- villupuram IISection between

Arasur SS to 110 KV Villupuram SSFor checking jumper tightness at railway crossing

During the period of LCHence NO Interruption of SupplyConcurrence obtained from

SE/O/VillupuramPossible Sat, 22-Apr-2017 09:00 Sat, 22-Apr-2017 17:00 1

Subject to load

conditionApproved

1135 Chennai 110 KV THIRUVALAM 230 KV between 110KV Katpadi SS to110KV Vellore

SS).

For replacement of aged disc at loc: 90. Vellore SS-110KV Katpadi SS.ii. The 110KV Thorapadi SS, 110KV Vellore SS are

availing total Shutdown. Hence there will be no interruption of supply please.


1136 Chennai 230 KV THIRUVALAM 230 KV 230KV Thiruvalam - Link I feeder.For Jumper tightness checking at Loc: 17 and EHT

Line Maintenance Works. feeders 230KV Link II, Singarapet, S.P.Koil feeders are in service.Hence there will be no



conditionApproved


beakers and its Ctsii) On 110KV Vellore-II

O/L & E/L Relay in 110KV Vellore-II Feeder

and monthly maintenance workiii)On 230KV

i)For fixing of O/L&E/L Relay in 110KV Velore-II

Feeder by GRT Wing /Thiruvalam and monthly

maintenance work.

During the period of LC i) The 110KV Vellore SS, 110KV Thorapadi SS, of VEDC/Vellore

are availing Total shutdown on 22.04.2017.The Total shutdown approved and

concurrence obtained by Chief Engineer/Distribution / Vellore ii) Auto-Tr-I ,HV-I,LV-I, Auto




1138 Chennai 230 KV VILLUPURAM 230 KV 230KV Ulundurpet-Villupuram -# For monthly maintenance works Other 230KV feeders will be in service (For tightening of jumpers 0 Sat, 22-Apr-2017 09:00 Sat, 22-Apr-2017 17:00 1 Approved

1139 Chennai 110 KV Villapuram 110 KV 110 KV VPM- Acharapakkam-I# Breaker & CT maintenance worksjumpers tightening works in the line between Villupuram


1140 Chennai 110 KV Villapuram 110 KV 110KV VPM-T.V.Malai-# Breaker & CT maintenance worksjumpers tightening works in the line between Villupuram


1141 Erode 110 KV SINGAPURAM 230 KV 110KV Deviyakurichi- II Feeder(CT,Breaker) Monthly Maintenance

1.Monthly Maintenance 110KV Deviyakurichi II Feeder will be fed radially from

Deviyakurichi end and 110/22KV Athur SS is availing TSD on 22.04.2017.2.There will be

no interrupted to the intermediate SS.

possible Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1subject to athur ss

availing tsdApproved

1142 Chennai 110 KV SIRUSERI 230 KV 110 KV Eastern Bus & 110 KV Siruseri -I # Maintenance work

DURING THE PERIOD OF SHUTDOWN 1)110KV EASTERN BUS,100MVA Auto

Transformer-I ,110KV Siruseri-I# & 110KV TCS # will not be inservice.2)110KV Siruseri-I#

load will be fed by 110KV Siruseri-II# of 230KV Siruseri SS. 3)110KV TCS # load will be

fed from 110KV Siruseri SS


1143 Chennai 230 KV SIRUSERI 230 KV 110 KV Eastern Bus & 110 KV Siruseri -I # Maintenance work

DURING THE PERIOD OF SHUTDOWN 1)110KV EASTERN BUS,100MVA Auto

Transformer-I ,110KV Siruseri-I# & 110KV TCS # will not be inservice.2)110KV Siruseri-I#

load will be fed by 110KV Siruseri-II# of 230KV Siruseri SS. 3)110KV TCS # load will be

fed from 110KV Siruseri SS

Repeat Sat, 22-Apr-2017 10:00 Sat, 22-Apr-2017 17:00 1 0 Repeat

1144 Chennai 230 KV ACHRAPAKKAM 230 KV 100 MVA AUTO TR.III FOR MONTHLY MAINTENANCE WORK1.100 MVA AUTO TR.I & II Will be inservice cater the entire ss loads,2.110 kv s p koil#

and Korattur-II # Will be radial from other endPossible Sat, 22-Apr-2017 09:00 Sat, 22-Apr-2017 12:00 1 0 Approved

1145 Erode 230 KV KUNDAH PH3 230KV KPH2 to KPH3 Feeder230KV KPH2 to KPH3 Feeder Pre-Monsoon

Inspection work(PMI) and Maintenance work.Bus and Line both end open condition Earth switch closed condition. possible Sat, 22-Apr-2017 8:00 Sat, 22-Apr-2017 17:00 1

subject to the load


1146 Chennai 230 KV THARAMANI 230 KV 230 KV Kalivanthapattu feeder Qtrly. Mtce. work other 230 KV Feeders will be in servicePossible OCC

Appd.159Sat, 22-Apr-2017 09:00 Sat, 22-Apr-2017 17:00 1 0 Approved


entire


2)Maintenance workNo interruption to any SS. All other feeders will be in tied condition. POSISBLE Sat, 22-Apr-2017 9:00 Sat, 22-Apr-2017 17:00 1

LC approved on

22.04.17 and

programmed

accordingly

Approved

1148 Chennai 110 KV Kadaperi 230kv 110 KV KITS- Madampakkam # Insulator Replacement at loc.2

Possible with

CBD

Concurrence

Sat, 22-Apr-2017 09:00 Sat, 22-Apr-2017 12:00 1 0 Not approved


entire

1)Monthly maintenance work 2)Relay testing work at

Kadalangudy end.No interruption to any SS. All other feeders will be in tied condition. POSISBLE Sat, 22-Apr-2017 10:00 Sat, 22-Apr-2017 17:00 1

LC approved on

22.4.17 and LC

programmed

accordingly

Approved


STATION 230 KV230KV CKNI-Sembatty Feeder


Maintenance work

During the LC Period, there will be no supply in the entire feeder and About 100MW

Shutdown has been proposed in sembatty area.

NOT

POSSIBLESun, 23-Apr-2017 9:00 Sun, 23-Apr-2017 17:00 1

ONLY 70MW

TOTAL S/D.

MORE S/D

NEEDED

Approved Subject to

load condition

1151 Madurai 230 KV SEMBATTY 230 KV230KV SBT - CKNI # Bkr, CTs, relays and

line entire

1. Monthly maintenance work2. Tree cutting work3.

Annual relay testing work

During the LC period the other end is also availing LC. Load relief: Thadicombu SS -

30MW, Thamaraipadi SS - 16 MW, Dindigul SS - 16 MW, V.K.Patti SS - 8 MW, total - 70

MW

NOT

POSSIBLESun, 23-Apr-2017 9:00 Sun, 23-Apr-2017 17:00 1

ONLY 70MW

TOTAL S/D.

MORE S/D

NEEDED

Approved Subject to

load condition


KV230KV NCTPS feeder bay

Breaker Isolator rectification work and monthly

maintenance work , CT cmanp and bolt nuts

replacement work

Concurance may be obtained from OD/NCTPS To be discuss Sun, 23-Apr-2017 10:00 Sun, 23-Apr-2017 17:00 1 0 Approved

1153 Chennai 230 KV TONDIARPET 230 KV 230KV MIDDLE BUS SECTION

230KV MIDDLE BUS SECTION WEAK JUMPERS

REPLACEMENT AND CLAMPS TIGHTNESS

CHECK.

1.230KV TPT-NCTPS-II FEEDER WILL NOT BE IN SERVICE.2. 100 MVA AUTO TR-I

WILL NOT BE IN SERVICE.3. 230KV LOAD TO BE RESTRICTED TO TWO SOURCE

FEEDERS.

To be discuss Sun, 23-Apr-2017 06:00 Sun, 23-Apr-2017 17:00 1 0 Approved

1154 Chennai 230 KV MANALI 230 KV230kv Alamathy-2 and 230kv Mylapore

feeders

1.For jumpering of 230kv OH line and 230kv Cable

point in Alamathy-2 feeder2.For looping of 230kv

feeder at LOC-1 tower.


transferred to other endsAfter the LCa.230kv Alamathy-2 feeder will be in service via GIS

bay No-207and 230kv line switch in Alamathy-2 feeder will be kept open at AIS SS end b.

feeder jumper towards will be kept open at LOC-1 tower.

To be discuss Sun, 23-Apr-2017 06:00 Sun, 23-Apr-2017 11:00 1 0 Pending

1155 Chennai 230 KV CUDDALORE 230 KV 230 KV Taqa-Deviakurichi #

For replacement of flashed over insulators at loc 59

and for checking jumper tightness at railway

crossing location. Loc.Nos.62-63 & 103-104.

During the period of LC 230 KV Deviakurichi SS will be fed from Budansandai

&K.R.thoppu EndHence NO Interruption of SupplyConcurrence obtained from

SE/O/Villupuram

Possible Sun, 23-Apr-2017 09:00 Sun, 23-Apr-2017 17:00 1 Possible Approved

1156 Erode 230 KV KUNDAH PH3 230KV KPH3 to Karamadai feeder

230KV KPH3 to Karamadai feeder Tower No:73-82


Maintenance work.


230 kv arasur to

gobi feeder lc

recommended

Approved

1157 Madurai 110 KV KODAIYAR PH2 110KV KAYATHAR FEEDER SF6 BREAKERMonthly maintenance of 110KV Kayathar feeder SF6

breakerFeeder will be radial from other end. Hence no SS will be affected. POSISBLE Sun, 23-Apr-2017 9:00 Sun, 23-Apr-2017 17:00 1 Approved

1158 Erode

GENERATI

NG

STATIONS

KUNDAH PH5 UNIT NO:02NEW ABB DIFFERENTIAL PROTECTION RELAY

COMMISSIONING WORK BY GRT WING KUNDAH

DURING THE ABOVE LC PERIOD THE UNIT NO 2 WILL BE UNDER NOT S/B

CONDITION.possible Sun, 23-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 3

3 days lc subject

to the grid

condition and the

other unit being

available

Approved

1159 Erode

GENERATI

NG

STATIONS

KUNDAH PH3 Unit III For monthly maintenance Unit under shutdown condition, SF6 breaker open condition possible Sun, 23-Apr-2017 8:00 Sun, 23-Apr-2017 17:00 1subject to the grid


1160 Chennai 230 KV KORATTUR 230 KV 100MVA AUTO TRANSFORMER - II General Maintenance work 100MVA Auto TRANSFORMER - I & III will be inservice Possible Sun, 23-Apr-2017 09:00 Sun, 23-Apr-2017 17:00 1Subject to load

conditionApproved

1161 Chennai 230 KV KOYAMBEDU 230 KV 230 KV Southern BusFor attending alignment problem of 230 KV SPR

Feeder- Bus side Isolator

230 KV SPR Feeder & 100 MVA Auto Transformer-I not in service. Load may be

restricted within 230 Kv GIS Feeder and 100 MVA Auto Transfomer II & IIIPossible Sun, 23-Apr-2017 10:00 Sun, 23-Apr-2017 17:00 1 0 Approved

1162 Chennai 230 KV TONDIARPET 230 KV 230 KV ETPS FEEDER FOR ROUTINE MAINTENANCE WORKS.DURING THE PERIOD OF SHUTDOWN , EXCEPT 230 KV ETPS FEEDER ALL OTHER

FEEDERS AND EQUIPMENTS WILL BE IN SERVICE.Possible Sun, 23-Apr-2017 09:00 Sun, 23-Apr-2017 13:00 1 0 Approved

1163 Chennai 230 KV KORATTUR 230 KV 230 KV Gumidipoondi - Sulurpet feeder Jumper Tightness at various location All other feeder will be in services To be discuss Sun, 23-Apr-2017 08:00 Sun, 23-Apr-2017 18:00 1Already approved

on 18th April 2017Approved

1164 Chennai 400 KV Sriperumbudur 400 KVAuto-4,400/110kv,200MVA & 110KV Western

Bus enitre

Monthly maintenace and Half yearly Bus mainteance

workDuring the period of shutdown Auto-5 will be in service

Possible OCC

Appd 129/199Sun, 23-Apr-2017 09:00 Sun, 23-Apr-2017 17:00 1 0 Approved

1165 Erode 110 KV THUDIALUR 230 KV 110KV Geddai I & II feeders one by one For monthly mtce works Being Sunday load will be minimum. During the LC period other feeder will be in service possible Sun, 23-Apr-2017 9:00 Sun, 23-Apr-2017 15:00 1subject to the load


1166 Erode 110 KV KUNDAH PH2110KV THUDIYALUR FEEDER NO 1&2 SF6

BREAKER AND ITS ACCESSIORIESFOR MONTHLY MAINTENANCE WORK SF6 BREAKER OFF IN CONDITION TOP AND BOTTOM BUS OPEN IN CONDITION 0 Sun, 23-Apr-2017 9:00 Sun, 23-Apr-2017 17:00 1 SLDC/Erode Approved

1167 Erode

GENERATI

NG

STATIONS

PUSHEP UNIT 1 NEED BASE MAINTENANCE WORK UNIT 1 IN SHUTDOWN CONDITION possible Sun, 23-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 3

3 days lc subject

to the grid

condition existing

Approved


Kaveripakkam SS).

For EHT Line Maintenance Works(Jumper tightness

checking work). Kaveripakam SS and Sipcot SS are availing total Shutdown. Hence there will be no




i)On 110KV Kaveripakkam Feeder Breaker

and its CTs , for fixing of O/L & E/L Relay in

110KV Kaveripakkam Feeder and monthly

maintenance work

i)For fixing of O/L & E/L Relay in 110KV

Kaveripakkam Feeder and monthly maintenance

work

During the period of LC i)The 110KV Kaveripakkam SS are transferred to 230KV Arni SS

and 110KV Sipcot SS are availing Total Shutdown on 23.04.2017 ii)Auto-Tr-I ,HV-I,LV-I,

be in service and cater the SS Loads. iii)The 110KV Kaveripakkam Feeder will be in

Link-I # and 230KV Mosur feeders will be in service and cater the SS Loads. Hence there

will be no interruption of supply please.


1170 Erode

GENERATI

NG

STATIONS

KUNDAH PH1 UNIT NO : 3 FOR MONTHLY MAINTENANCE WORK.. DURING THE LC PERIOD UNIT NO 3 WILL BE UNDER NOT S/B CONDITION.. possible Sun, 23-Apr-2017 8:00 Sun, 23-Apr-2017 17:00 1subject to the grid


1171 Chennai 230 KV

BASIN

BRIDGE(GMRVASAVI)

230 KV

230 KV Tondiarpet # Rutine maintenace work230 KV Tondiarpet # will not be in service, 230 KV Mylapore #, all 110 KV #s, Auto 1,2,3

will be in service . The load may be restricted to 70 MW.

Possible with

CBD

concurrence

Sun, 23-Apr-2017 06:00 Sun, 23-Apr-2017 09:00 1Subject to Grid

conditionApproved

1172 Chennai 230 KV SIRUSERI 230 KV230 KV Eastern Bus & 230 KV Bhavini-I & II

# (129th OCC approved)Monthly maintenance work

DURING THE PERIOD OF SHUTDOWN 1) 230KV BHAVINI-I&II #'s,100MVA AUTO

TRANSFORMER-I & 230KV EASTERN BUS will not be in service . 2) 110KV Bus coupler

breaker will be in closed condition. 3) 110KV Sholinganallur SS load will be transferred to

230KV KITS PARK SS.

Possible OCC

Appd 129/166Sun, 23-Apr-2017 10:00 Sun, 23-Apr-2017 17:00 1 0 Approved

1173 Chennai 110 KV VEERAPURAM 230 KV 110 KV Kits park Feeder Quarterly Maintenance110 KV Kits park feeder load ( 110 KV Madampakkam SS ) To be transferred to 230 KV

SS Kits parkPossible Sun, 23-Apr-2017 10:00 Sun, 23-Apr-2017 14:00 1 0 Approved

1174 Chennai 230 KV SPKoil 230 KV Kalapakkam feeder 2 Quartely Maintenance Work Pending Mon, 24-Apr-2017 09:00 Mon, 24-Apr-2017 17:00 1 Approved

1175 Chennai 110 KV VEERAPURAM 230 KV 110KV Thirupporur # Quarterly Maintenance and Annual Relay TestNo supply to all 110 KV SS fed off through 110 KV Thirupporur feeder and M/S.Orchid

chemicals. Concurrence to be obtained from SE/CEDC/ChengalpattuTo be discuss Mon, 24-Apr-2017 10:00 Mon, 24-Apr-2017 14:00 1 0 Approved

1176 Erode 110 KV THINGALUR 230 KV110KV Gobi feeder Breaker,CTs and Line

IsolatorsMonthly Maintenance Works 110KV Getticheviyur SS will be fed from Gobi 230KV SS possible Mon, 24-Apr-2017 9:00 Mon, 24-Apr-2017 17:00 1

subject to the

feeder being kept

radial from gobi ss

end

Approved

1177 Erode 110 KV ANTHIYUR 230 KV110KV Thalavaipettai feeder feeder breaker

and CT only.For monthly maintenance of Breaker and CT

During the LC period 110KV Thalavaipettai SS will be fed through 110KV 110KV Anthiyur

feeder.possible Mon, 24-Apr-2017 0:00 Mon, 24-Apr-2017 0:00 1

subject to

thalavaipettai ss

being fed by 110

kv anthiyur feeder

Approved

1178 Erode 110 KV ANTHIYUR 230 KV110 KV GOBI FEEDER BREAKER CT AND

LINE SWITCHMONTHLY MAINTENANCE WORK

DURING THE LC PERIOD 110KV ANTHIYUR GOBI FEEDER WILL BE RADIAL FROM

OTHER END UP TO T.N PALAYAM SS EXCLUSIVE.110/11KV T.N.PALAYAM SS WILL

AVAIL TOTAL SHUT DOWN AS ALREADY APPROVED. NO SS WILL BE AFFECTED.


subject to t n

palayam ss

availing tsd

Approved

1179 Madurai 110 KV PERIYAR 110 KV PERIYAR - SURULIYAR FEEDERFeeder Breaker with CT and Line side AB Switch for

Annual Maintenance work.

During the LC period both end Breaker Hand Trip & Line side AB Switch kept open

condition. NO SS will be effected.POSSIBLE Mon, 24-Apr-2017 10:00 Mon, 24-Apr-2017 14:00 1 0 Approved

1180 Madurai 110 KV KODIKURICHY 230 KVOn 110KV O.T.patti-Kayathar # section

between O.T.patti SS - Setharpanallur SS

For Replacement of defective disc at loc no: 91-92 &

retringing of Earth wire at Loc No:83-85

During LC period,i) AEE/M/OT Patti availing LC for monthly maintenance work.ii) 110KV

OTPatti - Kayathar # radial from other end upto Serthapanallur SS.iii) Hence no SS will

be affected.

POSSIBLE Mon, 24-Apr-2017 9:00 Mon, 24-Apr-2017 17:00 1sub to PPM pwd

demandApproved

1181 Erode 110 KV GOBI 230 KV110 KV BUS COUPLER BREAKER AND

CT'S



WORK

110 KV T.N PALAYAM SS MAY AVAIL TOTAL SHUTDOWN,110 KV GOBI FEEDER IN

110 KV EASTER BUS WILL TIED WITH 110 KV ANTHIYUR FEEDER IN 110 KV

WESTERN BUS BY CLOSING SERIES SWITCH AT 110 KV GOBI SS AND SUBJECT

TO THE LOAD CONDITION .


subject to the load

condition and the

division of loads

Approved

1182 Madurai 110 KV PUGALUR 230 KV110 KV Pugalur - Elumathur feeder Breaker,

CTs and line switch onlyMonthly maintenance works.

During the L.C Period, 110KV Sivagiri and 110KV Ellumathur SS are proposed total

shutdown and the remaining 110KV Kodumudi SS,110KV New Nadupalayam SS load fed

from 110KV Erode SS through 110KV Elumathur SS.

POSSIBLE Mon, 24-Apr-2017 9:00 Mon, 24-Apr-2017 17:00 1sub to concurance

from ErodeApproved

1183 Erode 110 KV Salem 400 KV110 KV Salem II # - Its CT, BREAKER, BUS

& LINE SWITCHESMonthly Maintenance Work Hasthampatty SS will be fed from Salem 230 KV SS possible Mon, 24-Apr-2017 8:00 Mon, 24-Apr-2017 14:00 1

subject to the

feeder being kept

radial from salem

ss end and the

other feeder

loading limit

Approved

1184 Madurai 110 KV VALUTHUR 230 KV 110KV Penna - Kavanoor feeder. Tree cutting work.During the LC period 110KV Penna - Valuthur feeder will be in service . Hence, there is

'no' interruption in power evacuation.POSSIBLE Mon, 24-Apr-2017 10:00 Mon, 24-Apr-2017 17:00 1

Sub to laod

conditionApproved

1185 Madurai 230 KV KARAIKUDI 230 KV On 230KV KKDI-VLDR #'r Entire. For Tower to Tower inspection work.During the L.C period all other 230KV #'rs will be tied with Grid. Hence there will be

Interruption of Supply.POSSIBLE Mon, 24-Apr-2017 9:00 Mon, 24-Apr-2017 17:00 1 0 Approved

1186 Madurai 110 KV KAVANOOR 230 KV 110 KV KAVANOOR-PIONEER (PENNA)MONTHLY MAINTENANCE WORKS AND LINE

MAINTENANCE WORKSPENNA-VALUTHUR TO BE IN SERVICE POSSIBLE Mon, 24-Apr-2017 9:00 Mon, 24-Apr-2017 17:00 1

Sub to load

conditionApproved

1187 Madurai 110 KV SURULIYAR110 KV SURULIYAR - PERIYAR breaker with

CT and line side switchFor attending monthly maintenance work.

During the above period, no SS will be affected since there is no intermediate SS. Also

during the above period, LC will be availed at the other end.POSSIBLE Mon, 24-Apr-2017 10:00 Mon, 24-Apr-2017 14:00 1 0 Approved


110KV Thiruvarur - Kovilvenni feeder (Line

portion between 110KV Kodavasal SS to

110KV Kovilvenni SS)

Line premonsoon Inspection and Rectification works.

During the LC period 110KV Kodavasal SS will be fed from 230KV Thiruvarur SS. The

110KV Kovilvenni SS & 110KV Vaduvoor SS will be fed from 110KV TVR-TNJ feeder by

closing back feeding switch no.1 at Kovilvenni SS. 110KV Thiruvarur - Thanjavur feeder

supply extended upto 110KV Poondi SS radially from Thanjavur Grid SS


conditionApproved


230 KV

110 KV OKM-Irugur # section between

110KV Podanur SS and 110KV Irugur SS.For P.M.I works by lines/TDLR wing.

During the LC period, 110KV Podanur SS will be fed from 230KV OKM SS and 110KV

Irugur SS will be fed from 230KV CBE SS. Hence, No SS will be affected.possible Mon, 24-Apr-2017 9:00 Mon, 24-Apr-2017 14:00 1

subject to the

feeder being kept

radial from either

end

Approved

1190 Madurai 110 KV EACHANGADU 230 KV110 KV VIRUTHACHALAM FEEDER

BREAKER,CT'sFor MONTHLY MAINTENANCE WORK

DURING THE ABOVE SHUTDOWN PERIOD M/S SASL CO- GENARATION WILL BE

EVACUATED THROUGH THE 110 KV PENNADAM # BY CLOSING THE BUSCOUPLER

SWITCH NO 44 AT 110 KV PENNADAM SS AND THERE WILL BE NO INTERRUPTION

TO EHT CONSUMER. Vridhachalam 110KV SS is alredy in Deviyakurichi - Neyveli

110KV feeder.



230 KV

110 KV OKM-R.S.Puram II Feeder (Breaker,

CT's & Line Switch)for monthly maintenance works.

During the LC period, 110KV OKM-R.S.Puram II feeder loads will be transferred to 110KV

OKM-R.S.Puram I feeder. Hence, No SS will be affected.possible Mon, 24-Apr-2017 9:00 Mon, 24-Apr-2017 14:00 1

subject to transfer

of loads to feeder

1

Approved

1192 Madurai 110 KV KADALANGUDI 230 KV110KV LTPCL- Vaitheeswarankoil feeder

portion between LTPCL- Manalmedu SS.


2)Maintenance of CT's and isolators at Plant end.

No interruption to any SS. 110KV Manalmedu SS supply fed from 110KV Kadalangudy-

V.Koil- Manalmedu feeder. LTPCL plant will be in shutdown condition.POSSIBLE Mon, 24-Apr-2017 8:00 Mon, 24-Apr-2017 17:00 1 0 Approved

1193 Madurai 110 KV KAYATHAR 230 KV110Kv Kayathar-O.T.Patti Feeder Sec b/w

seethaparpanallur & o.t.PattiFor defective disc replacement at various location

During the LC period,Seethaparpanallur SS will be radially fed from Kythr Hence no SS

affected.POSSIBLE Mon, 24-Apr-2017 9:00 Mon, 24-Apr-2017 17:00 1 0 Approved

1194 Erode 230 KV DEVIAKURICHI 230 KVBreaker, CTs and Line side isolator both end.

For Monthly Maintenance work 230 KV STCMS & Pudanchandai Feeders will be in service. possible Mon, 24-Apr-2017 9:00 Mon, 24-Apr-2017 17:00 1subject to the load



1.110KV UNJANAI - T.GODE FEEDER

BREAKER, CT'S AND LINESIDE ISOLATOR

ONLY.

CONTROL AND REALY PANELS REPLACING

WITH UPGRADED C & R PANELS.

DURING THE L.C PERIOD,1. T.GODE 110KV FEEDER TIE WILL BE KEPT OPENED

AT UNJANAI END.2. T.GODE 110KVSS LOADS WILL BE RADIALLY FED FROM BKB-II

END. IF NECESSARY UNJANAI - SANKARI 110KV FEEDER ISOLATOR AT T.GODE

END WILL BE CLOSED.

postponed Mon, 24-Apr-2017 9:00 Thu, 27-Apr-2017 17:00 4

to be rescheduled

with

thiruchengode ss

tsd on 18.04.2017

Subject to

EE/SLDC/Erode

approval

1196 Chennai 110 KV KORATTUR 230 KV 110 KV Gumidipoondi-Periyapalayam feeder Jumper Tightness at various location 110 KV Periyapalyam SS will be fed from 400 KV ALamath SS Possible Mon, 24-Apr-2017 09:00 Mon, 24-Apr-2017 18:00 1 0 Approved


110 KV POOLAVADY FEEDER BREAKER

AND LINE ENTIRE SEC BETWEEN

UDUMALPET & THUNGAVI

FOR MONTHLY MAINTENANCE WORKS1)POOLAVADY SS WILL BE ON TOTAL SHUTDOWN 2)THUNGAVI SS LOADS WILL

BE FED FROM PONNAPURAM 230KV SSpossible Mon, 24-Apr-2017 9:00 Mon, 24-Apr-2017 17:00 1

subject to

poolavadi ss tsd

and the feeder

being kept radial

from ponnapuram

ss

Approved

1198 Madurai 110 KV SAMAYAPURAM 230 KV 110 KV MUSIRI # Breaker & CTs only Monthly Maintenance Work & GRT test

During the above Shutdown Period, 1) 110 KV Musiri # will be fed thro'110 KV

perambalur 2 # of 110KV KKDY SS by closing ABS.2 &3 at 110 KV Thathaingarpet SS

and by closing Musiri Breaker at 110 KV T.Pet SS. (Note: already in 110 KV Thuraiyur SS

ABS 1&6 are in closed condition) 2) 110 KV Musiri # Breaker at 230 KV SMPM SS will be

in H/T condition. 3) 110KV Vengaimandalam SS is also availing total shutdown on that

same day. 4)Informed & necessary concurence obtained from Welpsun Solar Plant &

EHT consumer (Arise) 5)There is no interruption to any other 110 KV SS


1199 Madurai 110 KV SRPUDUR 230 KV

a ) 110 KV SRP-KKY # line section between

SRP and Kannanallur. B)110 KV SRP-KKY #

Br CT & Line switch.

a) Tower to Tower Inspection and Checking

healthness of Jumper . B.Annual relay testing work

During the LC period Kannanallur SS will avail back feeding supply from 110 KV

Muppandal #. Hence no SS will be affectedPOSSIBLE Mon, 24-Apr-2017 9:00 Mon, 24-Apr-2017 14:00 1 Sub to wind gen Approved

1200 Madurai 230 KV SANKANERI 230 KV230/33KV PowerTransformer-II,HV&LV

Breakers.For monthly maintenance purpose.

During the LC Period PowerTransformer-II willnot beinservice. PowerTransformer-I&III

will be carriedout the EntireLoad.POSSIBLE Mon, 24-Apr-2017 9:00 Mon, 24-Apr-2017 14:00 1 Sub to wind gen Approved


For Monthly maintenance work and Annual relay

testing works by P & C wing /Thudialur

1)During the LC Period 110 KV Arasur- Kaniyur feeder load transfer to 110 KV Arasur-

Palladam feeder (By closing Bus Coupler switch at Kaniyur SS).2) During the LC Period

110 KV Kalivelampatty load transfer to 230 KV Palladam SS


subject to transfer

of loads to

palladam feeder

Approved

1202 Erode 230 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Mon, 24-Apr-2017 9:00 Mon, 24-Apr-2017 14:00 1subject to the


1203 Madurai 110 KV KODAIYAR PH2 110KV Melalallor feeder SF6 breakerMonthly maintenance of 110KV Melakallor# SF6

breakerFeeder will be radial from other end. Hence no SS will be affected. POSSIBLE Mon, 24-Apr-2017 9:00 Mon, 24-Apr-2017 17:00 1 0 Approved


KV110KV TCPL I feeder

Monthly Maintenance work, CT clamp and bolt nuts

replacement work

Concurance to be obtained from M/s. TCPL During the period of LC TCPL I loads fed

through TCPL II feederPossible Mon, 24-Apr-2017 09:00 Mon, 24-Apr-2017 17:00 1

Subject to

concurrence from

M/s. TCPL

Approved

1205 Madurai 110 KV KAYATHAR 230 KV110 KV Kayathar - Anupankulam # breaker

with CT OnlyFor Monthly Maintenance work During the LC period other end also avails LC. Hence, No ss affected POSSIBLE Mon, 24-Apr-2017 9:00 Mon, 24-Apr-2017 17:00 1 0 Approved

1206 Erode 230 KV SALEM AUTO 230 KV230KV Deviakurichi-Singapuram Entire

Feeder.Road & Railway crossing jumpers checking.

1)230KV Deviakurichi - singapuram Feeder breaker & CT's maintenance work availing

Both SS. 3)230KV Deviakurichi-Singapuram Feeder series switch Both SS will be Kept

Opened.3)There will be no interruption of supply to any SS.








BETWEEN T(K)GTPS TO 110KV

ULLIKKOTTAI SS.

FOR PREMONSOON INSPECTION BY AE/LINES/

PATTUKKOTTAI.

1) DURING THE LC PERIOD, 110KV ULLIKKOTTAI SS, 110KV OKKANADU

KEELAIYUR SS AND 110KV MANNARGUDI SS RADIALLY FED FROM 230KV

THIRUVARUR SS. 2) NO INTERRUPTION TO ANY SUBSTATIONS.


conditionApproved

1208 Erode 110 KV METTUR AUTO 230 KV 110KV Malco III Feeder For Monthly Maintenance work During the LC period 110KV Malco I & II Feeder will be in service possible Mon, 24-Apr-2017 9:00 Mon, 24-Apr-2017 17:00 1other two feeders


1209 ErodeGENERATI

NG

STATIONS

PYKARA UNIT 7 FOR MONTHLY MAINTENANCE WORK NIL possible Mon, 24-Apr-2017 8:00 Mon, 24-Apr-2017 17:00 1other units wil be

in serviceApproved

1210 Chennai 110 KV CUDDALORE 230 KV Section between SASL Co Gen to pennadam

SS

For replacement of flashed over insulators at loc no.

76, 94 and for checking jumper tightness at railway

crossing location. Loc.Nos.3 - 4.

During the period of LCThe 110 KV Pennadam SS will be availing Total shutdown.Hence

NO Interruption of SupplyConcurrence obtained from SE/O/VillupuramTo be discuss Mon, 24-Apr-2017 09:00 Mon, 24-Apr-2017 17:00 1

Already approved

on 22nd April

2017

Approved

1211 Erode 230 KV ALIYAR 230 KV230/110KV AUTO TRANSFORMER-I WITH

HV AND LV CB,CTs

OLTC Overhauling and y-phase Ttransformer oil

leakage aresting&Overhauling workDuring the LC period 230/110kv Auto Transfomer-II will caters the load possible Mon, 24-Apr-2017 10:00 Wed, 26-Apr-2017 16:00 3

llong lc for 21

days to be

scheduled with

note approval and

to be approved by

se ld go chennai

Approved

1212 Erode 230 KV SINGAPURAM 230 KV230 KV Deviyakurichi

Feeder(CT,Breaker&Isolator)Monthly Maintenance 1.Monthly Maintenance at both ends. possible Mon, 24-Apr-2017 9:00 Mon, 24-Apr-2017 17:00 1

subject to the load



230KV KPH2 to KPH3 Feeder Tower No:25 to 35.

Pre monsoon inspection work and maintenance

work.

Bus and line both end open condition earth switch closed condition. possible Mon, 24-Apr-2017 9:00 Mon, 24-Apr-2017 17:00 1subject to the load


1214 Madurai 230 KV KARAIKUDI 230 KV On 230KV GC Bkr, its CT's O/G isolator. For Monthly Mtc Work.

During the Lc Period 3x50MVA Auto.Tr's will not be out of Service. To Manage 110KV

Bus by itself, 110KV Alakarkoil #'r will be radial from 230KV Alkarkoil SS End.

Singampunari, S.Pudur & Narasingampatty under TSD. Hence there will no interruption of

Supply.

NOT


Due 110KKDI-

ALKL# is radial

from both ends for

110PSQ-

ALKL#1&Sahtisug

ars# LC upto

15.4.17

Approved

1215 Chennai 230 KV CUDDALORE 230 KV 230 KV Taqa-Perambalur

Replacement of flashed over insulators at loc. No

76,92,153,171 and for checking jumper tightness at

railway crossing locations. Loc.Nos. 82-83 & 30-31

Durind the period of LC 230 KV Perambalur SS will be fed from 230 KV Trichy SSHence

NO Interruption of SupplyConcurrence obtained from SE/O/VillupuramPossible Tue, 25-Apr-2017 09:00 Tue, 25-Apr-2017 17:00 1 0 Approved

1216 Chennai 110 KV SPKoil lines 110 KV Chengapattu feeder Quertaly maintenance work Possible Tue, 25-Apr-2017 10:00 Tue, 25-Apr-2017 17:00 1 approved Approved


STATION 230 KV

230KV CKNI-Renganathapuram Feeder

Entire


Maintenance WorkDuring LC Period, there will be no supply in the entire feeder POSISBLE Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1

Due to 230Pugalur-

Parmathi # 2 LCApproved

1218 Madurai 230 KV VEERANAM 230 KVPower transformer -IV HVBR -IV LVBR -IV

33Kvfeeders of Micon-7,Vestas-1,Vestas-2Quarterly & Monthly maintenance work

During the lc period there will be no supply in entire Power transformer -IV &33kv feeders

and concurrence obtained from SE/NCES/TIN.POSSIBLE Tue, 25-Apr-2017 10:00 Tue, 25-Apr-2017 17:00 1 Sub to wind gen Approved

1219 Chennai 400 KV Alamathy 400 KV400/230 KV ICT#4 & 5 HV Tie breaker 8(1)52

only

For CT Tan delta testing and isolator allignment

work.

400/230 KV ICT#4 & 5 will be in service via HV main circuit breakers.Hence No

interuption.

Possible OCC



On 110KV Bus Section I & II (Entire Bus

Section)with Auto LV I, II & III Breakers, CT's

and All Isolators.

1For Monthly Maintenance work and 2between 110

KV Bus isolatror to 110 KV Kayathar #main Bus

Conducter R and B Phase replacement work

During the lc period: 1Auto I, II & III will be out of service.2110 KV Kadayanllur SS and

110 KV Achanpudhur SS will be radially fed from 230KV Nalamanaickampatti SS.3110

KV Kodikurichi- Tenkasi- Papanasam # Will be radial from other end. 110 KV

Kodikurichih WF SS load will be transferred through this #.4110kv Keelapavoor SS,110kv

Alangulam SS will be Radillay fed from 110kv kayathar SS .5110 KV Echantha SS load

will be transferred through 110 KV veerasigamani II to Nalamanaickanpatty # by closing

AB Switch towards veerasigamani at Echantha SS.6110 KV Kodikurichi- Veerasigamani II

# will Be tied with 110kv Nalamanaickanpatty # by closiing of AB Switch at

Nalamanaickanpatty SS towards 230 kvNalamanaickanpatty SS7Hence No SS will

affected.

POSSIBLE Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1Sub to wind gen

and load condition

Approved Subject to

Wind Generation

1221 Madurai 230 KV KAYATHAR 230 KVOn 230/110KV Kayathar - Auto Transformer-I

HV-I & LV-I breaker with CT only.For Monthly Maintenance Work

During the LC period, Auto Transformer-II & Auto Transformer-III will cater all the loads of

Auto Tranformer-I Hence no SS affectedPOSSIBLE Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 12:00 1

sub to load

conditionApproved

1222 Madurai 230 KV KODIKURICHY 230 KV230KV Amuthapuram- Checkanoorani feeder -

I I

For rectification of Arching Horn at Location No:353

(Y Phase)

During LC Period, 1.AE/Maintenance/Amuthapuram& Chekkaroorani aviling monthly

shutdownPOSSIBLE Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1 Sub to wind gen Approved

1223 Madurai 230 KV AMUTHAPURAM 230 KV230KV Amuthapuram-checkanoorani Feeder

with Breakers,CTs and its isolatorsMonthly Maintenance Work

1) During the LC period there will be NO supply in this feeder. 2) Other end also avail LC

on same day. 3) Concurrence obtained from SE/NCES/TIN.POSSIBLE Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1 Sub to wind gen Approved

1224 Erode 110 KV GOBI 230 KV110 KV ANTHITUR FEEDER BREAKER AND

CT'S WITH LINE SWITCHFOR MONTHLY MAINTENANCE WORK

110 KV KUGALUR SS MAY AVAIL TOTAL SHUTDOWN,SUPPLY TO 110 KV TN

PALAYAM SS MAY FED FROM 230 KV ANTHIYUR SS,NO OTHER SS WILL

AFFECTED


subject to the

feeder being kept

radial from

anthiyur ss end

Approved

1225 Madurai 110 KV PUGALUR 230 KV110 KV TNPL feeder breaker, CT & Line

switch only

Monthly Maintenance work ,Annual Relay test by

P&C wing,Erode.

During the LC period, there will be no supply on the above feeder. Concurrence to be

obtained from EHT consumer M/s TNPL Ltd.POSSIBLE Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1 0 Approved


STATION 230 KV230KV CKNI-Amuthapuram Feeder Entire


Maintenance WorkDuring LC Period there will be no supply in the entire feeder POSSIBLE Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1 0 Approved

1227 Erode 230 KV Salem 400 KV230 KV Link I # - Its CTs, BREAKER, BUS &

LINE SWITCHESBoth end Monthly Maintenance Work Both end Monthly Maintenance Work possible Tue, 25-Apr-2017 8:00 Tue, 25-Apr-2017 14:00 1

subject to the

other feeder

loading limit

Approved

1228 Madurai 110 KV KADALANGUDI 230 KV 110KV Palaiyur- KGTPS feeder entire Line inspection and rectification work.No interruption to any SS. 110KV Palaiyur SS supply fed from 110KV Kadalangudy-

Aduthurai- Palaiyur feeder. All other feeders will be in tied condition at KGTPS plant.POSSIBLE Tue, 25-Apr-2017 10:00 Tue, 25-Apr-2017 16:00 1

sub to load

conditionApproved


KV

230KV Bus-B MEHRU Makr PTs-3

Nos.230KV Deviakurichy feeder SCT make

CTs-3 Nos.110KV Namakkal, Rasipuram,

Pudhansandai, Namagiripet, KN Patty,

Valayapatty #s LAMCO make CTs-18

Nos.110KV LV-I and LV-II LAMCO make CTs-

6 Nos.110KV Bus Coupler LAMCO make CTs-

3 Nos.

For Tan Delta Testing of 110KV LAMCO make,

230KV & 110KV SCT make CTs. and 230KV

MEHRU make PTs.Wherein the last Tan Delta test

Values were noticed in rising trend.

During LC period230KV Bus-B idly charged through Bus Coupler CB & CTs will be hand

tripped for 30 minutes for Tan Delta testing of MEHRU PTs.230KV Deviakurichy feeder

will be kept radially charged from Dvk end for 30 minutes for Tan Delta testing of SCT

make CTs.110KV Namagiripet SS will be transferred to 110KV DVK-Thammampatty

feeder.110KV Pudhansandai SS will be back fed through 110KV PSI-Rasipuram feeder

for 30 minutes.110KV KN Patty SS will be back fed through 110KV PSI-Rasipuram feeder

for 30 minutes and then,110KV Rasipuram SS will be transferred to 110KV Salem-Malllur

feeder.110KV Namakkal and Valayapatty feeder loads will be fed vice-versa for Tan Delta

testing of LAMCO make CTs in both these feeder.110KV East and West Buses fed by

Auto-II & I, will be separated for 30 minutes for LAMCO Bus Coupler CTs Tan Delta

testing.110KV LV-I and LV-II LAMCO make CTs will be tested for TAN Delta values one

after other for 30 minutes.No supply interruption.


the lc will be

issued one by one

subject to the load

condition existing

and subject to

transfer of loads

only

Approved

1230 Madurai 230 KV then I 230 KV230KV TNI-MZR # Breaker ,CT,entire line

with 230KV Bus LC in Northern Bus only

Monthly Br,ct maintenance,Line monthly

maintenance,premonsoon inspection and

replacement of defective CVT in 230 KV northern

bus

During the LC period the Auto Tr. 2 & 3 out of service, 230KV sempatty radial from other

end, 230KV MZR # both end LC, Auto Tr. I in service ( expected load relief 108 Mw ) Total

shut down to be proposed in the following 110KV SS for load relief of 108 MW ( Theni,

Nilakottai, Eluvanampatty , Madurapuri , Kadamalai Kundu, Cumbum, UPM, Bodi,

C.O.Puram,MGKottai, KPM SS)


App in

129occ/172Sub to

load and toal s/d

Approved


110 KV KGTPS-PALAIYUR FEEDER


END.

110 KV KGTPS-PALAIYUR FEEDER ANNUAL

RELAY TESTING WORKS BY


TESTING WORKS AND OTHER MAINTENANCE

WORKS IN ISOALTORS AT KGTPS END.

During the LC period there is no interruption of supply to any ss. POSSIBLE Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1 0 Approved

1232 Madurai 230 KV KAVANOOR 230 KV230/110 KV AUTO TRANSFORMER 2 - 80

MVA, HV BR., LV BR.MONTHLY MAINTENANCE WORKS

AUTO TR. 2 WILL NOT BE IN SERVICE. LOADS TO BE CATERED BY THE OTHER

AUTO TR.POSSIBLE Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1 0 Approved

1233 Erode 110 KV METTUR DPH110 KV METTUR TOWN SS FEEDER

ENTIRE.MONTHLY MAINTENANCE WORKS.

THE 110 KV METTUR TOWN SS AND 33 KV KOLTAHUR SS LOADS WILL BE

CHANGED TO 110 KV METTUR-ANTHIYUR FEEDER FOR THE ABOVE LINE CLEAR

PERIOD.


subject to transfer

of mettur ss loads

and kolathur ss

loads to anthiyur

feeder

Approved

1234 Madurai 230 KV TRICHY 230 KVBreaker,CTs , Line Isolator and line entire.


inspection

During the LC period, a) other end also availing LC on the same feeder. b) all other

230KV feeders will be in tied condition. c) there will be no interruption of supply to any of

the feeders and SS.


1235 Madurai 230 KV THIRUVARUR 230 KV 230KV Thiruvarur - Thanajvur FeederLine Premansoon inspection and rectification work,

Breaker, CT's and Isolator maintenance work

During the LC period all other 230Kv feeders are in tied. Hence there will be no

interruption of supply to any other substation.POSSIBLE Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1

sub to 230 KDGDI-

NEY # loadingApproved


230 KV

110 KV OKM-Thudiyalur II Feeder (Breaker,


During the LC period, 110 KV OKM-Thudiyalur II Feeder loads will be transferred to 230

KV TDLR SS. Hence, No SS will be affected.possible Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 14:00 1

subject to the

feeder being kept

radial from

thudiyalur ss end

Approved

1237 Madurai 110 KV KADALANGUDI 230 KV 110KV Kadalangudy- LTCPL feeder entire


2)Maintenance work 3)Maintenance of CT's and

isolators at Plant end.

No interruption to any SS. All other feeders will be in tied condition. LTPCL plant will be in

shutdown condition.POSSIBLE Tue, 25-Apr-2017 8:00 Tue, 25-Apr-2017 17:00 1 0

Subject to Load

condition

1238 Madurai 110 KV KAYATHAR 230 KV110KV Kayathar-Arumuganeri Feeder sec

b/w Palayamkottai&Srimoolagarai.For Defective Disc replacement at Various locations

During the LC period,I.PalayamKottai SS will be radially fed from

Kayathar.II.Srimoolakarai SS will be radially fed from arumuganeri Hence No SS affectedPOSSIBLE Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1 0 Approved

1239 Madurai 110 KV SEMBATTY 230 KV110KV SBT- Udumalpet # sec bet

Pappampatti and M.N.Patti SSTree cutting work

During the LC period Thalaiyuthu SS is availing total shutdown. Feeder will be radial from

SBT upto Pappampatti and radial from other end upto M.N.Patti. Hence no interruption to

any SS.


Sub to wind gen

and concurrance

from UDPT

Approved

1240 Chennai 110 KV KORATTUR 230 KV110 KV Gumidipoondi-Periyappalayam

feederJumper Tightness at various location 110 KV Periyapalyam SS will be fed from 400 KV Alamathy SS To be discuss Tue, 25-Apr-2017 08:00 Tue, 25-Apr-2017 16:00 1

Already approved

on 24th April 2017Repeat

1241 Erode 230 KV UDUMALPET 230 KVAUTO TRANSFORMER I,HV I & LV I

COMPLETEFOR MONTHLY MAINTENANCE WORKS 3 AUTOS ARE IN PARALLEL . LOADS ARE SHARED WITH OTHER TWO AUTOS. possible Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1

subject to the

other auto trs

loading limit

Approved

1242 Chennai 230 KV ACHRAPAKKAM 230 KV230/110KV, 100 MVA AUTOTRANSFORMER

-I WITH HV AND LV BREAKERS AND CT'STO CARRYOUT MONTHLY MAINTENANCE WORK

1.100 MVA 100 MVA AUTOTRANSFORMER -II WILL BE SEVICE CONDITION2.110KV

ACK- VILLUPRAM I & II FEEDER WILL BE RADILLY CHARGED FROM OTHER

END.3.110KV ACK- SP KOIL I & II FEEDER WILL BE RADILLY CHARGED FROM

OTHER END.4.110KV ACK- VANDAVASI FEEDER WILL BE RADILLY CHARGED

FROM OTHER END.



KV

230 KV Sadayapalayam-Ponnapuram #

breaker,CT's & Isolators.Annual relay testing work by P&C Palladam. 230 KV Sadayapalayam-Palladam # in service. possible Tue, 25-Apr-2017 10:00 Tue, 25-Apr-2017 17:00 1

subject to the load


1244 Chennai 110 KV KILPAUK 230 KV110KV Kilpauk Water works feeder I & II one

by one

Tan Delta Test by GRT wing & Routine Maintenance

work

1) During the period of shutdown of 110KV KWW I feeder, loads of KWW I feeder will be

transferred to KWW II feeder2) During the period of shutdown of 110KV KWW II feeder,

loads of KWW II feeder will be transferred to KWW I feeder

Possible with

CBD

concurrence


1245 Madurai 230 KV SAMAYAPURAM 230 KV230KV SMPM-TRICHY # Breaker & CT's ,

Line isolators and entire line portion.

Monthly Maintenance work, line Patrol work by

AE/Lines/kallakudy.

1. During the shutdown period 230 KV SMPM SS will be radially fed from 230 KV SS

Eachangadu. 2.The other end 230 KV SS Trichy also availing LC on the same date &

time. 3.No interruption to any other 110 KV SS.


1246 Madurai 110 KV SRPUDUR 230 KVOn 110 KV SR Puthur - Palavoor feeder

entire

a.Tower to tower inspection, Checking of

healthyness of Jumper b. Annual relay testing work

During the LC period 110/11 KV Palavoor SS will avail Total shut down. Hence no ss will

be affected.POSSIBLE Tue, 25-Apr-2017 10:00 Tue, 25-Apr-2017 14:00 1 Sub to wind gen Approved

1247 Madurai 230 KV SANKANERI 230 KV230/110KV AutoTransformer-II,HV&LV

Breakers.


Testing purpose.

During the LC Period Auto Transformer-II willnot beinservice. AutoTransformer-I will be

carriedout the EntireLoad.POSSIBLE Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 14:00 1 Sub to wind gen Approved

1248 Madurai 110 KV SANKANERI 230 KV110KV Sankaner- koodankulam feeder

Breaker CTs & Lineswitches.


Testing purpose.

During the LC Period 110KV Vijayapathy SS supply Radially fed from SRPuthoor-

Arumuganeri feeder-II, By Closing Buscoupler-II at 110KV Koodankulam SS.Hence no SS

will be affected.

0 Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 14:00 1 wrong entry Approved

1249 Madurai 230 KV ALUNDUR 230 KV

230KV Alundur - Paramathy Feeder Breaker,

CT's, CVT's and Line Isolators.(Alundur End

Only)

a)Monthly Preventive Maintenance work. b)Relay

TestingWork.

During the LC period, a)Alundur End Only LC work. b)All other 230 KV feeders will be in

service. c)There will be no interruption of supply to any other feeders.POSSIBLE Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1 App in occ/168 Approved

1250 Erode 110 KV Singarapet 110 KV110 KV Samalpatty RLY # I, SF6 Bkr, CTs &

Line Isolator.Monthly maintenance work

During the LC period 110KV Samalpatty Railway Traction will be transferred to 110KV

Samalpatty II feeder, hence no interruption of supplypossible Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 15:00 1

feeder 2 will be in

serviceApproved

1251 Erode 230 KV SALEM AUTO 230 KV230KV Link Feeders I Breakers, CTs & Line

IsolatorsMonthly Maintenance work.

230KV Link-I feeder LC will be availed at both ends. 3Nos 230KV feeder will be in service

and there will be no interruption to any SS or feeder.possible Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1

subject to the

other feeder

loading limit

Approved

1252 Madurai 230 KV kayathar230kv230KV Sankaraperi 1 feeder main breaker

(211-52) & CT,CVT

Monthly Maintenance work and Annual Relay test by

AEE/P&C-2/kayathar

During the LC period there will be no supply in 230KV Sankaraperi 1 feeder main breaker

(211-52) & CT,CVT. hence no substation affected.POSSIBLE Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1 Sub to wind gen Approved

1253 MaduraiGENERATI

NG

STATIONS

KODAIYAR PH2 Generator machine unit-II

A) Electrical- Monthly maintenance of Thrust cooler

cleaningB) Mechanical- Monthly maintenance of

Governor oil coller cleaning

P.H-II will be in shut down condition POSSIBLE Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1After s/d of Kod

Ph2Approved


KV

1.110KV Karimangalam feeder breaker,

CTs,Line switch 2. Mettur 230KV feeder

breaker and CT`s


maintenance and GRT Relay testing in

Karimangalam # and Differential Relay Fixing at

230KV Mettur #

110 KV Karimangalm SS availing Total Shutdown Total Relief : 50 MW, the Station load

will Managed by keeping Auto Transformer I, II & III and 230 KV Shoolagiri Feeder , 1 No

Grid feeder in service.


subject to

karimangalam ss

availing tsd and

the shoolagiri

feeder loading

limit after that

Approved

1255 Erode 230 KV PONNAPURAM 230 KVBreaker, CTs And entire line


Maintenance works.1. 230KV GRID #, HENCE NO SS WILL BE AFFECTED possible Tue, 25-Apr-2017 10:00 Tue, 25-Apr-2017 17:00 1

subject to the load


1256 Madurai 110 KV KAYATHAR 230 KV110 KV Kayathar - OTPatty # Breaker with

CT onlyFor Monthly Maintenance work During the LC period other end also avails LC. Hence, No ss affected POSSIBLE Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1

Sub to ppm pwd

demandApproved


KV

25.04.2017---230 KV Vinnamangalam -

isolators

For attending monthly maintenance works only




dt:21.03.2017.

Possible OCC


1258 Madurai 230 KV THANJAVUR 230 KV230 KV Thanjavur - Thiruvarur feeder,

Breaker, CT & Line Isolator.


AEE/Mtce/Thanjavur, 2) For carrying out

premonsoon inspection works by the

AEE/Lines/Thanjavur.

During the LC period, 1) other end also will avail LC on the same day,2) all other 230 KV

feeders will be in tied condition,3) no supply interruption to any SS.POSISBLE Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1

sub to 230 KDGDI-

NEY # loadingApproved

1259 Erode 110 KV SALEM AUTO 230 KV 110KV Salem - Singapuram -II feeder entire. Road crossing jumpers checking.

1) 110KV Salem - Singapuram -II feeder breakers kept hand tripped at Salem 230KV SS

and Singapuram 230KV SS.2) There will be no supply in 110KV Salem - Singapuram -II

feeder entire.3) Mettupatty 110KV SS will be availing total shutdown on that day.4) There

will be no interruption of supply to any SS.

possible Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1subject to

mettupatty ss tsdApproved

1260 Erode 230 KV karamadai230KV230KV Karamadai-Thudialur feeder breaker,

CTs & CVTs.For maintenance works. LC programmed at other end also. possible Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 14:00 1

subject to the load



230 KV

A)110KV NEMMELI THIPPIYAKUDI -

PATTUKKOTTAI-II FEEDER BREAKER, CT'

s AND LINE ISOLATER.B) 110KV NEMMELI

THIPPIYAKUDI - PATTUKKOTTAI-II

FEEDER ENTIRE

A) MONTHLY MAINTENANCE WORK BY

AEE/MTC/ N T KUDI. B) PREMONSOON

INSPECTION BY AE/LINES/PATTUKKOTTAI.

1) During the LC period, 110KV Nemmeli Thippiyakudi-Pattukkottai-I Feeder in service. 2)

During the LC period, 110KV KARAMBAIYAM SS WILL AVAIL TOTAL SHUTDOWN3)

110KV Kovilkalappal-Madukkur-Pattukkottai tie will be created (by closing the 110KV Line

Isolator (switch No.2) at 110KV Madukkur SS) and 110KV Madukkur feeder Breaker hand

tripped condition at 230/110KV N T Kudi SS.4) No interruption to any Substation.


1262 Madurai 230 KV PERAMBALUR 230 KV 230KV Bus coupler Breaker only For monthly maintenance works. Idle Breaker.There will be no interuptionConsumer POSSIBLE Tue, 25-Apr-2017 10:00 Tue, 25-Apr-2017 12:00 1 0 Approved

1263 Chennai 230 KV ATHIPET 230 KV 25MVA Power Transformer Routine maintenance work1. No supply to M/s Zuari & M/s L&T shipbuilding, 2. 33KV athipattu feeder and 33KV

NCTPS feeder will be back fed from Melur 110KVSS0 Tue, 25-Apr-2017 11:00 Tue, 25-Apr-2017 17:00 1

Concurrence from

SE/OApproved

1264 Erode 110 KV KARUVALUR 230 KV110kv Karuvalur - Thekkalur (paduvamplli)

feeder breaker and it's CTs


palladam lines in section between 230kv Karuvalur -

110kv Thekkalur SS

110kv Thekkalur SS total shutdown and 110kv KPR (EHT) fed from 110kv Karuvalur -

Arasur II feederpossible Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1

subject to

thekkalur ss

availing tsd and

the load transfer

to arasur 2 feeder

after that

Approved

1265 Erode 110 KV PALLADAM 230 KV110 KV Palladam - Tiruppur feeder breaker

and CT's and line side isolator

To carryout Monthly maintenance on equipment's by

AEE/Maintenance/Palladam

During LC period 1) 110 KV Mudalipalayam SS and 110 KV Tiruppur SS availing total

shut down2) 110 Kumarnagar SS will be fed through 110 KV Sipcot II feederpossible Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 15:00 1

subject to the tsd

relief being

realized

Approved

1266 Erode 230 KV PALLADAM 230 KVAuto transformer II and its HV , LV side

breaker CT's and LAS

To carryout Monthly maintenance on equipment's of

Auto transformer II by AEE/Maintenance/Palladam

During LC period 1) Other 3 Nos Auto transformers will be in service2) 110 KV

Mudalipalayam SS and 110 KV Tiruppur SS availing Total shut down3) No other Sub

Station will be affected


subject to the

other auto trs

loading limit

Approved


KV

230 KV Buscoupler Breaker and Transfer Bus

CVTMonthly maintenance work

During the period of L/c time 230 KV Transfer Bus will be OFF condition. There is no

interruption of supply to any of the substation please.Possible Tue, 25-Apr-2017 09:00 Tue, 25-Apr-2017 14:00 1 0 Approved

1268 Erode 230 KV METTUR AUTO 230 KV 230KV Karimangalam Feeder both end For Monthly Maintenance work During the LC period other 230KV feeders will be in service possible Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1

subject to the 230

kv akrimangalam

to shoolagiri

feeder loading

limit

Approved

1269 Erode 230 KV THUDIALUR 230 KV 230KV Thudiyalur-Karamadai feeder entire For monthly mtce works 230KV OKM, CBE & PH4 feeders will be in service possible Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 14:00 1subject to the load


1270 Chennai 110 KV CUDDALORE 230 KVFor replacement of flash over insulators at (loc no

74) B phase

During the period of LCThe 110 KV Panruti Rural and panruti urban ss load will be


Possible Tue, 25-Apr-2017 09:00 Tue, 25-Apr-2017 17:00 1Subject to load

conditionApproved

1271 Chennai 110 KV CUDDALORE 230 KV110 KV Cuddalore - Spic Pharma # breaker,

For monthly maintenance worksDuring the period of LCSpic Pharma - Under D.C. from 21.11.2011Hence NO Interruption

of SupplyConcurrence obtained from SE/O/VillupuramPossible Tue, 25-Apr-2017 09:00 Tue, 25-Apr-2017 17:00 1 0 Approved


For EHT Line Maintenance Works.230 KV Thiruvalam SS to 110 KV Sholinghur SS.ii. The 110KV M.V.Puram SS, 110KV

Mukundrayapuram SS, 110KV Sholinghur SS(11kv loads), are availing Total Shutdown

Hence there will be no interruption of supply please.


1273 Chennai 230 KV THIRUVALAM 230 KV For EHT Line maintenance work.230KV Link I, Link II, Chittoor feeders are in service.Hence there will be no interruption of

supply please.



Breakers and its Cts. for fixing of Differential

relay by GRT Wing /Thiruvalam and monthly

maintenance work.ii) On 110KV M.V.Puram

i)For fixing of Differential relay in Auto Tr-III by GRT

Wing /Thiruvalam and monthly maintenance work

ii)For monthly maintenance work in 110KV

M.V.Puram feeder and 230KV Mosur Feeder

During the period of LC i) The 110KV M.V.Puram SS, 110KV Mukundrayapuram SS,

110KV Sholinghur SS, are availing Total Shutdown on 25.04.2017. The Totalshutdown

approved and concurrence obtained by Chief Engineer/ Distribution / Vellore ii) Auto-Tr-II

will be in 'OFF' Condition vi)The 230KV Link-II, 230KV Link-I, 230KV Chittoor interstate

feeders, and will be in service and cater the SS Loads. Hence there will be no interruption

of supply please.



KV110KV Padikasuvaithanpatti feeder Br. CT. For monthly maintenance work.

During the LC period,110KV Padikasuvaithanpatti feeder,Breaker and line will be no

supply. Hence no SS will be affected.POSSIBLE Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 13:00 1 0 Approved

1276 Erode 110 KV KUNDAH PH3 110KV KPH2 to Thudiyalur Feeder

110KV KPH2 to Thudiyalur Feeder Tower No:01 to

14. Pre monsoon inspection work and maintenance

work.

Bus and line both end open condition earth switch closed condition. postponed Tue, 25-Apr-2017 9:00 Tue, 25-Apr-2017 17:00 1to be scheduled

on a sunday

Subject to

EE/SLDC/Erode

approval

1277 Chennai 230 KV SPKoil lines 230 KV Spkoil-Kalpakkam feeder 1 Insulator Replacement work Possible Wed, 26-Apr-2017 10:00 Wed, 26-Apr-2017 17:00 1 approved Approved


TTY 230 KV

230/110KV AUTO TRANSFORMER-II,HV-II

BREAKER WITH C.T,LV-II BREAKER WITH

C.T AND 110KV THOTTIAPATTI FEEDER

BREAKER WITH C.T

FOR MONTHLY MAINTENANCE WORK.

DURING THE L.C PERIOD 110KV THOTTIAPATTI,110KV PADIKASUVAITHANPATTI

AND 110KV SRIVILLIPUTTUR SS WILL BE AVAILING TOTAL SHUT-DOWN ON THAT

DAY.NO SS WILL BE AFFECTED.

POSISBLE Wed, 26-Apr-2017 10:00 Wed, 26-Apr-2017 17:00 1Due to Kodikurichi

Bus LCApproved

1279 Erode 230 KV Udumalpet 400 KV230 KV MYVADI - ANIKADAVU FEEDER

BREAKER, CT AND LINE ENTIREMONTHLY MAINTENANCE WORK BOTH END AVAIL LC postponed Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1

230 kv

ponnapuram to

sadayapalayam

feeder lc

recommended

Approved Subject to

wind Generation

1280 Madurai 230 KV KODIKURICHY 230 KV 230KV Transfer Bus Section For Monthly Maintenance work 0 POSSIBLE Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1 0 Approved

1281 Madurai 230 KV KAYATHAR 230 KVOn 230/110KV Kayathar - Auto Transformer-

III HV-III & LV-III breaker with CT only.for Monthly Maintenance work

During the LC period, Auto Transformer-II & Auto Transformer-I will cater all the loads of

Auto Tranformer-III Hence no SS affectedPOSSIBLE Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1

Sub to wind gen

and load conditionApproved

1282 Erode 230 KV THINGALUR 230 KV230KV KR THOPPUR feeder Breaker,CTs

and Line IsolatorsMonthly Maintenance Works Other end also availing LC postponed Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1

to be scheduled

after the 230 kv

mtps 3 to thingalur

feeder is back in

service or with a

tsd of 120 mw in

ingur / thingalur ss

fed areas

Not approved


KV

200MVA,400/110KV AUTO TRANSFORMER-

4Monthly maintenance work

During the LC Period Auto Transformer-4 in OFF condition and Auto Transformer -3 will

cater the load of Auto Transformer-4 without interruption.

Possible OCC


1284 Erode 110 KV ANTHIYUR 230 KV110KV METTUR FEEDER BREAKER CT

AND LINE SWITCHMONTHLY MAINTENANCE WORKS

DURING LC PERIOD OTHER END ALSO PROGRAMMED TO AVAIL MONTHLY

MAINTENANCE ON THIS FEEDER .NO SS WILL BE AFFECTED.possible Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 15:00 1

subject to the load


1285 Erode 230 KV KUNDAH PH3 230 KV PH3 - KARAMADAI FEEDER For monthly maintenance work Both ends are open condition, MODS are open condition possible Wed, 26-Apr-2017 8:00 Wed, 26-Apr-2017 17:00 1subject to the load




feeder section between 110 KV Kodikurichi

SS -Tenkasi SS

For replacement of defective insulator at loc no: 16

During LC period, i)110KV Tenkasi ,Shenkottai, Keelapavoor & 110 KV Kadayam SS will

be fed from 110 KV Papanasam - Kayathar feeder by closing of AB switch towards

Kadayam at Rastha SS end ii) 110Kv AB switch Towards Tenkasi will be kept opened at

kodikurichy ss and 110Kv AB switch Towards Kodikurichy will be kept opened at Tenkasi

ssiii).Hence no SS will be affected.

POSSIBLE Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1 Sub to wind gen Approved

1287 Madurai 230 KV PUGALUR 230 KV230 KV Paruthiyur feeder breaker, CT & Line

switch onlyMonthly Maintenance work

During the LC period, there will be no supply on the above feeder. Concurrence to be

obtained from M/s Regen power Tech.Paruthiyur.POSSIBLE Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1

Sub to

concurrance from

Paruthiyur

Approved


1. 110KV UNJANAI - BKB-II FEEDER

BREAKER ,CT'S AND LINESIDE ISOLATOR

ONLY.2. AUTO TR NO :I AND IT'S

BREAKERS & CT'S ONLY

FOR MONTHLY MAINTENCE WORK.1. 110KV PALLIPALAYAM SS ALSO AVAILING TOTAL SHUTDOWN ON THE SAME

DAY

1. possible 2.

postponedWed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1

1. subject to load

condition existing;

2. tsd relief

insuffiicient

Subject to

EE/SLDC/Erode

approval


1.110KV UNJANAI - SANKARI FEEDER

BREAKER , CT'S AND LINESIDE ISOLATOR

ONLY.2. 230KV UNJANAI - SALEM

400KVSS FEEDER BREAKER, CT'S AND

LINESIDE ISOLATOR ONLY.

FOR MONTHLY MAINTENANCE WORK1. 110KV SANKARI SS ALSO AVAILING TOTAL SHUTDOWN ON THE SAME DAY.2.

SALEM 400KVSS ALSO PRAMMED TO AVAIL L.C ON THE SAME DAY ON THAT DAYpostponed Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1

sankagiri ss tsd

scheduled for

21.04.2017

Subject to

EE/SLDC/Erode

approval


KV

On 230 KV TTN -Kayathar feeder breaker

with CT bus and line side switchesFor monthly maintenance work During the Lc period No SS will be affected. POSSIBLE Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1

Possible sub to

TTPS genApproved

1291 Erode 230 KV Salem 400 KV230 KV Thingalur # - Its CTs, BREAKER,

BUS & LINE SWITCHESBoth end Monthly Maintenance Work Both end Monthly Maintenance Work postponed Wed, 26-Apr-2017 8:00 Wed, 26-Apr-2017 14:00 1

to be scheduled

after the 230 kv

mtps 3 to thingalur

feeder is back in

service or with a

tsd of 120 mw in


fed areas

Not approved


STATION 230 KV230KV Buscoupler Breaker For Monthly maintenance works During the LC period, no supply will be affected POSSIBLE Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1 0 Approved

1293 Madurai 110 KV VALUTHUR 230 KV 110KV VGTPS - Perungulam feeder entire. Tree cutting work.During the LC period 110KV Valuthur - Perungulam and 110KV Arkay - Mandapam -

Perungulam feeders will be in service. Hence, there is ''NO' interruption to Perungulam SSPOSSIBLE Wed, 26-Apr-2017 10:00 Wed, 26-Apr-2017 17:00 1 0 Approved

1294 Madurai 110 KV KADALANGUDI 230 KV110KV Vaitheeswarankoil- LTPCL feeder

entireLine inspection and rectification work.

No interruption to any SS. 110KV Manalmedu SS proposed to shutdown. The 110KV

V.Koil, Poraiyar and Thiruvengadu SS supply fed from 110KV Kadalangudy- V.Koil

feeder.


1295 Madurai 230 KV KARAIKUDI 230 KVOn 230/110KV Auto.Tf- 3 & its allied

Equipments.For Monthly Mtc Work

During the LC Period the Auto.Tf-3 Load will be Contained other Auto.Tf- 1 & 2. Hence

there will be No interruption of Supply.POSSIBLE Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1

Sub to load

conditionApproved

1296 Madurai 110 KV KARAIKUDI 230 KVOn 110KV Devakottai # S/B Sakkavayal &

Devakottai.For Disc Replacement Work.

During the LC Period the Devakottai SS will be under TSD. Sakkavayal will be fed radially

from 230KV KKDI SS.Hence there will be No interruption of Supply.POSSIBLE Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1 0 Approved


KV

110KV Sankari -I# CT,Breaker and 110KV

Sankari II # CT,BreakerMonthly Maintenance work

1.Veppadai 110KV SS Avail Total Shud down on that day and Radially from other

end.2.Radially from other end and LC taken one by one.postponed Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1

110 kv salem to

sankagiri section

lc recommended

Subject to

EE/SLDC/Erode

approval

1298 Madurai 230 KV KAVANOOR 230 KV 230 KV KAVANOOR-SIPCOT #MONTHLY MAINTENANCE WORKS AND LINE

MAINTENANCE WORKSNO SUPPLY IN THE FEEDER POSSIBLE Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1 0 Approved


110 KV KGTPS-THIRUVARUR FEEDER


END.

BREAKER TESTING AND OTHER MAINTENANCE

WORKS IN ISOLATORS AT KGTPS ENDDuring the LC period there is no interruption of supply to any ss POSSIBLE Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1 0 Approved


230 KV

230 KV OKM-Ponnapuram Feeder Entire



monthly maintenance works.During the LC period, the other 230 KV feeders are in service to cater the SS loads. possible Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1

subject to the load


1301 Erode 230 KV DEVIAKURICHI 230 KVBreakers and CTs

For Monthly Maintenance workAuto Transformer II will be in service. 110 KV Deviakurichy-Singipuram feeder I and II will

be kept radial from Singipuram 230kV SS endpossible Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1

subject to the

other auto tr

loading limit

Approved

1302 Chennai 230 KV ARNI 230 KV230KV Arani- Singarapet Feeder Breaker,

230KV CTs and Line IsolatorFor monthly maintenance work

At present the 230KV Arani- Singarapet Feeder Breaker is in Hand Tripped condition.

Also on 26.04.2017 LC scheduled in 230KV Arani Singarapet 230KV Feeder by both Sub

stations ( Arani and Singarapet SS) for Monthly Maintenance work.Hence there will be no

interruption of supply.



110KV KAYATHAR -SURULIYAR FEEDER

SECTION B/W KAYATHAR &

SANKARANKOVIL

1)Line inspection and rectification workDURING THE LC PERIOD,SANKARAN KOVIL SS WILL BE RADIALLY FED FROM

SURULIYAR POWERHOUSE HENCE NO SS AFFECTEDPOSSIBLE Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1 0 Approved

1304 Madurai 110 KV KADALANGUDI 230 KV110KV KGTPS-Thiruvarur express feeder

entireLine inspection and rectification work

No interruption to any SS. All other feeders will be in tied condition. AEE/Lines/Thiruvarur

also applied LC on the same.POSSIBLE Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 16:00 1 0 Approved


230 KV

On 230 KV Sipcot-Kavanoor feeder breaker

with CTs and line isolators only.

a) For monthly maintenance works. B) For Main-II

Distance relay changing work.POSSIBLE Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1 0 Approved

1306 Chennai 400 KV Sriperumbudur 400 KV 400KV HV-1 Breaker Quarterly maintenance work During the period of shutdown Auto-1 will be fed by 400kv tie breaker 352Possible OCC


1307 Erode 230 KV METTUR AUTO 230 KV 230 KVSS - Thingalaur feeder entirefOR Checking Of Jumbercone Tightness at River

crossing Towers LOC NO: 198 & 199Both K.R.Thoppur SS and Thingalur SS have Programmed for Mtc work on that day. postponed Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1

to be scheduled

after the 230 kv

mtps 3 to thingalur

feeder is back in

service or with a

tsd of 120 mw in


fed areas

Not approved

1308 Erode 230 KV SINGARAPET 230 KV230 KV Arani # Breaker and CTs& line

isolators





other feeders will


1309 Madurai 110 KV SRPUDUR 230 KV On 110 KV Bus II & III Only B Phase damaged conductor replacement work.NOT

POSSBLEWed, 26-Apr-2017 10:00 Wed, 26-Apr-2017 17:00 1

May programmed

along with Total

s/d in Ko1&2

feeders

Subject to Total

shutdown

1310 Chennai 110 KV manali230kv 110KV Athipet - L&T Jumper tightness. Tower to Tower inspection. All other feeder in service. Possible Wed, 26-Apr-2017 08:00 Fri, 28-Apr-2017 18:00 3

Subject to

concurrence from

L&T

Approved


For Monthly maintenance work( 110 KV Kallimadai

SS total Shut down)

During the LC Period 110 KV Arasur- Coimbatore feeder radial from 230 KV Coimbatore

SS.possible Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 12:00 1

subject to the

feeder being kept

radial from

coimbatore ss

Approved

1312 Madurai 230 KV ALUNDUR 230 KV100 MVA Auto Transformer - I ,HV-I,LV-I

Breaker's, CT's and Isolators.a)Monthly maintenance work. b)Relay Testing work.

During the LC period, a)An Other 100 MVA Auto Transformer -II will be in service. b) All

other 110 KV feeders will be in service. c)There will be no interruption of supply to any

other feeders.


1313 Erode 110 KV Singarapet 110 KV110 KV Samalpatty # II, SF6 Bkr, CTs & Line


During the LC period 110KV Samalpatty Railway Traction will be transferred to 110KV

Samalpatty I feeder, hence no interruption of supplypossible Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 15:00 1

feeder 1 will be in

serviceApproved


400kv Main Breaker for ICT3(412-52),230kv

LV Breaker for ICT3(203-52), Tie Breaker for

ICT-2 & ICT-3 (411-52) and 400/230kv ICT3


During the LC period there will be no supply in 400kv Main Breaker for ICT3(412-

52),230kv LV Breaker for ICT3(203-52), Tie Breaker for ICT-2 & ICT-3 (411-52) and

400/230kv ICT3. Hence no substation affected.

POSSIBLE Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1

sub to wind gen

and App 129

occ/210

Approved


KV110KV Sanmar feeder

Monthly maintenance work , CT clamp and bolt nuts

replacementconcurance to be obtained from M/s. Sanmar 0 Wed, 26-Apr-2017 10:00 Wed, 26-Apr-2017 17:00 1

Subject to

concurrence from

M/s. Sanmar

Approved

1316 Erode 230 KV PONNAPURAM 230 KV230 KV Ponnapuram - OKM# Breaker, CT&

Line entire


Maintenance works.1. 230KV GRID #, HENCE NO SS WILL BE AFFECTED possible Wed, 26-Apr-2017 10:00 Wed, 26-Apr-2017 17:00 1

subject to the load


1317 Madurai 110 KV KAYATHAR 230 KV110 KV Kayathar - Suruliyar # Breaker with

CT only

a) For Monthly Maintenance Workb) For GRT annual

relay testing workDuring the LC period other end also avails LC hence No ss affected POSSIBLE Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1 0 Approved


110KV Salem - Sankagiri feeder section

between Veerapandy 110KV SS and

Sankagiri 110KV SS.


1) 110KV Salem - Sankagiri feeder breaker kept hand tripped at Sankagiri 110KV SS.2)

110KV Salem - Sankagiri feeder series switch at Veerpandy 110KV SS towards Salem

will be kept opened.3) There will be no supply in 110KV Salem - Sankagiri feeder section

between Veerapandy 110KV SS and Sankagiri 110KV SS.4) Mallasamudram 110KV SS

will be radially fed from Salem 230KV SS.5) Veerapandy 110KV SS is availing total

shutdown on that day.6) There will be no interruption of supply to any SS.




1.110KV KYTHR-K.G.PATTI FEEDER SEC

B/W KYTHR &KALUGUMALAI;2.110KV

KYTHR-SURULIYAR FEEDER SEC B/W

KYTHR&SANKARAN KOVIL

FOR(tlc Work) stringing between tower loc 63 to 64

in the newly erected 230kv dc line from

Kayathar400KVSSto tuticorin autoSS Cross Over

the1.110KV KYTHR-K.G.PATTI FEEDER ;2.110KV

KYTHR-SURULIYAR FEEDER (L0C 355&356) (For

Safety Purpose)

DURING THE LC PERIOD,1.KALUGUMALAI SS WILL BE RADIALLY FED FROM

K.G.PATTI 2.SANKARAN KOVIL ss WILL BE RADIALLY FED FROM SURULIYAR

HENCE NO SS AFFECTED

NOT

POSSBLEWed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1

PYR-KGPTY-KYR

# programmed

along with Total

s/d

Not approved


230 KV

A) 110KV NEMMELI THIPPIYAKUDI-

KOVILKALAPPAL (VIA:VADASERI) FEEDER

BREAKER, CT's, AND LINE ISOLATOR. B)

110KV NEMMELI THIPPIYAKUDI-

KOVILKALAPPAL (VIA:VADASERI) FEEDER

ENTIRE

A) FOR MONTHLY PREVENTIVE MAINTENANCE

WORK BY AEE/MTC/ N.T.KUDI.B) FOR


AE/LINES/ PATTUKKOTTAI.

1) DURING THE LC PERIOD 110/33-11KV VADASERI SS WILL AVAIL TOTAL

SHUTDOWN2) NO INTERRUPTION TO ANY SUBSTATIONS AND ALL OTHER 110KV

FEEDERS ARE TIED CONDITION.

POSISBLE Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1Due to 110KKPL-

TVR(Exp)# LC

Approved subject to

Load

1321 Erode 110 KV METTUR AUTO 230 KV 110KV Anthiyur Feeder entire For Monthly Maintenance work During the LC period other 110KV feeders will be in service possible Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 17:00 1subject to the load


1322 Erode 110 KV PYKARA110KV PYKARA - SANDYNALLAH #

(BREAKER AND CT)FOR MONTHLY MAINTENANCE WORK NIL possible Wed, 26-Apr-2017 8:00 Wed, 26-Apr-2017 17:00 1

subject to the load


1323 Chennai 110 KV CUDDALORE 230 KV110 KV Cuddalore - J.K. Pharma # breaker,

For monthly maintenance worksDuring the period of LCJ.K. Pharma - Under D.C. from 25.06.2004Hence NO Interruption

of SupplyConcurrence obtained from SE/O/VillupuramPossible Wed, 26-Apr-2017 09:00 Wed, 26-Apr-2017 17:00 1 0 Approved

1324 Erode 110 KV ALIYAR 230 KV110KV ALR-AKY FEEDER CB,CTs AND

LINE SECTION BETWEEN ALR SS&AKY SSQuarterly mtce work During the LC period AKY SS under shutdown condition possible Wed, 26-Apr-2017 9:00 Wed, 26-Apr-2017 14:00 1

subject to the tsd


1325 Erode 110 KV PONNAPURAM 230 KV110KV MARUTHUR # S/B 110KV

SALAIPUTHUR & KETHANUR SSFor providing of Adjustable arching horns

1. 110KV MALAYADIPALAYAM SS WILL AVAIL TOTAL SHUTDOWN ON 26.04.2017 2.

110KV MARUTHUR # WILL KEPT RADIAL UP TO 110KV SALAIPUTHUR SS3. 110KV

KETHANUR SS WILL FEED FROM 230KV ARASUR / 110KV KANIUR#4. 110KV

KARADIBAVI SS WILL BE FEED FROM FROM 230KV OKM SS/110KV NEGAMAM-II#5.

HENCE NO SS WILL AFFECTED




110 kV Commom Bus and its associated

equipment at 110 kV switch yard LMBPH- 2 /

Nerinjipettai

To carry out the erection (Replacement) of 3 nos

new PTs in the existing structure at LMBPH -2 /

Nerinjipettai

(i) During the LC period Unit 1 & 2 will be in shut down condition.(ii)110 Kv KRT feeder

will be fed radial from KRT SS up to Poolampatty SS end & series switch towards LMBPH

- 2 / Nerinjipettai at Poolampatty SS will be kept opened.(iii) 110kV LMBPH - 1 Feeder will

be kept cut off at LMBPH - 1 end.(iv) 110 kV LMBPH -3 feeder will be kept cut off at

LMBPH - 3 end.


no tsd scheduled

and auto tr 3 at kr

thoppur ss would

overload; to be

scheduled on a

sunday

Subject to

EE/SLDC/Erode

approval

1327 Chennai 230 KV

BASIN

BRIDGE(GMRVASAVI)

230 KV

Auto Transformer 1 Routine maintenance work Auto TR 1 will not be in service, Auto Tr 2,3 , all 230 KV #s & 110 KV #s will be in service. Possible Wed, 26-Apr-2017 09:00 Wed, 26-Apr-2017 17:00 1 0 Approved

1328 Chennai 110 KV Kadaperi 230kv 110 KV PALLAVARAM FEEDER QUARTERLY MAINTENANCE WORK 1.110 KV Pallavaram # will be off condition

Possible with

CBD

Concurrence

Wed, 26-Apr-2017 09:00 Wed, 26-Apr-2017 12:00 1 0 Not approved

1329 Chennai 110 KV THARAMANI 230 KV 110 KV Bus Coupler Qtrly. Mtce. work 110 KV BUS will be in service seperaly Possible Wed, 26-Apr-2017 09:00 Wed, 26-Apr-2017 17:00 1 0 To be discuss

1330 Chennai 230 KV SPKoil lines Auto Transformer 4 Monthly Maintenance Work Possible Thu, 27-Apr-2017 10:00 Thu, 27-Apr-2017 17:00 1 approved Approved


STATION 230 KV230KV CKNI-Theni Feeder Entire


Maintenance works

During LC Period there will be no supply in the entire feeder.Also, Thevaram

SS,Ayyampalayam SS,Batlagundu SS,Vaigai Dam SS & Aundipatty SS are availing

shutdown

POSISBLE Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 17:00 1

ONLY 40 TO 50

S/D PROPOSED.

MORE S/D

NEEDED

Approved Subject to

load condition

1332 Madurai 230 KV THIRUVARUR 230 KV 110KV Thiruvarur - KGTPS Express feederLine premansoon inspection and rectification work,

Breaker, CT's and Isolator maintenance work.During the LC period there will be no interruption of supply to any other substation. POSSIBLE Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 17:00 1 0 Approved

1333 Erode 230 KV THUDIALUR 230 KV 230KV Karamadai feeder entire For monthly mtce works During the LC period, other 230KV feeders will be in service postponed Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 14:00 1

230 kv kph 3 to

karamadai feeder

lc recommended

Approved

1334 Madurai 230 KV KODIKURICHY 230 KV 230 KV Tie breaker For Monthly Maintenance work The Tie breaker already kept in idle condition. POSSIBLE Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 17:00 1 0 Approved

1335 Madurai 230 KV KAYATHAR 230 KVOn 230KV Kayathar - (400KVSS)Kayathar I



Tower inspection work.During the LC period, Other end also availing LC. Hence no SS affected. POSSIBLE Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 17:00 1 0 Approved

1336 Erode 230 KV GOBI 230 KVAUTO TRANSFORMER III HV,LV BREAKER

AND CT'S



WORK

AUTO TRANSFORMER I AND II ARE IN SERVICE,IT MAY CATER THE LOAD possible Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 17:00 1

subject to the

other auto trs

loading limit

Approved


STATION 230 KV

230KV CKNI-Nallamanayakkanpatty Feeder

Entire


Maintenance WorkDuring LC Period there will be no supply in the entire feeder POSSIBLE Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 17:00 1 0 Approved

1338 Erode 400 KV Salem 400 KVBREAKER, & Its SWITCHES

Monthly Maintenance WorkHV Breaker I & II will be in service condition,Hence there will be no interruption of supply

to 400 / 230 KV Auto transformers I & II.possible Thu, 27-Apr-2017 8:00 Thu, 27-Apr-2017 14:00 1 occ approved Approved


TTY 230 KV

230KV CHEKKANURANI FEEDER

BREAKER WITH C.T AND LINE ISOLATOR.FOR MONTHLY MAINTENANCE WORK.

DURING THE L.C PERIOD OTHER END ALSO AVAILING L.C ON THAT DAY.NO SS

WILL BE AFFECTED.POSSIBLE Thu, 27-Apr-2017 10:00 Thu, 27-Apr-2017 16:00 1 0 Approved

1340 Madurai 110 KV then I 230 KV110KV PYR- KYR # ( sec between

K.G.PATTY SS AND MUDANGIAR SS)

LINE MONTHLY MTCE AND PREMONSOON

INSPECTON WORKS

NO INTERRUPTION TO ANY SS.( K.G.PATTY SS RADIAL FROM PYR PH AND

MUDANGIAR SS RADIAL FROM KYR SS)

NOT


Due to load

condition. LC May

be programmed

along with Total

s/d

Not approved


230 KV110KV RNPM - Pugalur # Br,CT's Monthly Maintenance works During LC period the feeder will be radially fed from Pugalur end upto RNPM SS POSSIBLE Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 14:00 1 0 Approved

1342 Madurai 230 KV KAVANOOR 230 KV230/110 KV AUTO TRANSFORMER 1 - 50

MVA, HV BR., LV BR.MONTHLY MAINTENANCE WORKS

AUTO TR. 1 WILL NOT BE IN SERVICE. LOADS TO BE CATERED BY THE OTHER

AUTO TR.POSSIBLE Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 17:00 1 0 Approved

1343 Madurai 230 KV UDAYATHUR 230 KV110KV UDAYATHOOR- RADAHAPURAM

FDR. BR.,CT &LINESWMONTHLY MAINTENANCE WORK

During the LC period the 110kvRadhapuram ss will be fed from 110kv SR.Pudur -

Arumuganeri feeder2POSSIBLE Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 14:00 1 Sub to wind gen Approved

1344 ErodeGENERATI

NG

STATIONS


POWER HOUSE,METTUR.possible Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 15:00 1

other machines


1345 Madurai 110 KV TRICHY 230 KV110KV TRICHY - ALUNDUR II breaker,CTs &

Line Isolator and line entire.


inspection

During the LC period, a) other end also availing shutdown for monthly maintenance work

b) Intermediate 110 KV Manikandam SS also availing Total shutdown c) All other 110 KV

feeders will be in service d) There will be no interruption of supply to any other feeders &

SS.


1346 Madurai 230 KV THIRUVARUR 230 KV 230KV Thiruvarur - Kadalangudy feederLine premansoon inspection and rectification

work,Breaker, CT's and Isolator maintenance work.

During the LC period all other 230KV feeders are in tied condition. Hence there will be no

interruption of supply to any other substation.POSSIBLE Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 17:00 1 0 Approved

1347 Madurai 110 KV EACHANGADU 230 KV110 kv Pennadam (Radial) Feeder BREAKER

, CT'S.FOR MONTHLY MAINTENANCE WORK.

DURING THE ABOVE SHUTDOWN PERIOD 110 KV PENNADAM SS IS ALSO

AVAILING TOTAL SHUT DOWN and normaly the feeder is radial from Eachangadu 230

KV SS.


1348 Madurai 230 KV EACHANGADU 230 KV50 MVA ,Auto Transformer II &HV II, LV II

Breaker,CT's & their related Equipments

For Monthly maintenance works & Annual Relay test

by GRT/VPM.

During the above work, Eachangadu 230 KV SS loads will be fed from the other Auto

Transformer -I.Loads will be with in one transformer capacity since 110 KV Vridhachalam

SS Loads are already transferred to 110 KV Neyveli - Deviakurichi feeder



230 KV

230 KV OKM-Palladam Feeder Entire

(Breaker, CT's, 89M1, 89M2 & 89L Isolators)Polluted disc replacement work by lines wing. During the LC period, the other 230 KV feeders are in service to cater the SS loads. possible Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 17:00 1

subject to the load

condition existing

and both ends

availing the lc

Approved

1350 Chennai 400 KV Thiruvalam 400 KV 230KV Singarapet feeder Maintenance & GRT Periodical Relay testing 1)230KV Singarapet feeder kept in OFF condition at both end. Possible Thu, 27-Apr-2017 09:00 Thu, 27-Apr-2017 17:00 1 0 Approved

1351 Madurai 230 KV KADALANGUDI 230 KV 230KV Kadalangudy- Thiruvarur feeder entire For monthly Maintenance workNo interruption to any SS. All other feeders will be in tied condition. Other end also

applied LC on the same.POSSIBLE Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 17:00 1 0 Approved


110KV VILLUPURAM I &II FEEDER


ISOLATOR

TO CARRYOUT MONTHLY MAINTENANCE WORK

1.110KV ACK- VILLUPURAM I FEEDER WILL BE RADILLY CHARGED FROM 110KV

VILLUPURAM SS UPTO 110KV THIDIVANAM SS AND 110KV LINE SIDE ISOLATOR

OPEND CONDITION IN TOWARDS 230KV ACHARAPAKKAM SS SIDE AT 110KV

THIDIVANAM SS.2.110KV ACK- VILLUPURAM II FEEDER WILL BE RADILLY

CHARGED FROM 230KV VILLUPURAM SS UPTO 110KV ELAMANGALAM SS AND

110KV LINE SIDE ISOLATOR OPEND CONDITION IN TOWARDS 230KV

ACHARAPAKKAM SS SIDE AT 110KV ELAMANGALAM SS.


1353 Erode 230 KV SINGARAPET 230 KV230 KV Thiruvalam # Breaker, CTs & line

isolators





other feeders will


1354 Erode 230 KV THUDIALUR 230 KV230/110KV, 100MVA Auto Transformer I, HV-

I & LV-I

For monthly mtce works & new differential relay

commissioningDuring the LC period, Auto Transformer II & III will be in service. possible Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 17:00 1

subject to the

other auto trs

loading limit

Approved

1355 Madurai 110 KV SANKANERI 230 KV110KV Sankaner- koodankulam feeder

Breaker CTs & Lineswitches.


Testing purpose.

During the LC Period 110KV Vijayapathy SS supply Radially fed from SRPuthoor-

Arumuganeri feeder-II, By Closing Buscoupler-II at 110KV Koodankulam SS.Hence no SS

will be affected.

POSSIBLE Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 14:00 1 Sub to wind gen Approved

1356 Madurai 110 KV ALUNDUR 230 KV110KV Alundur - Trichy-II Feeder

breaker,CT's, and Line Isolators.a)Monthly maintenance work. B)Relay testing work.

During the LC period, a)other end also aviling shut down. and Intermediate 110KV

Manikandam SS Also avail total shut down. b) All other 110 KV feeders will be in service

c)There will be no interruption of supply to any other feeder's and ss.


1357 Erode 110 KV SALEM AUTO 230 KV110KV Singapuram Feeder-I Breakers, CT's

and Line Isolators.Monthly Maintenance work.

1.110KV Singapuram feeder-I will be fed radially from other end. 110KV Udayapatty SS

will be availing total shutdown. There will be no interruption to any SS or feeder.possible Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 17:00 1

subject to

udayapatty ss

availing tsd

Approved

1358 Madurai 230 KV kayathar400kv230KV Kayathar-1 feeder Main breaker (204-

52), CT,CVT and LASMonthly Maintenance work

During the LC period there will be no supply in 230KV Kayathar-1 feeder Main breaker

(204-52), CT,CVT and LAS, Hence no substation affected.POSSIBLE Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 17:00 1 0 Approved

1359 Madurai 110 KV KODAIYAR PH2 S.R Pudur 110KV feeder-I SF6 breakerMonthly maintenance of 110KV SR.Pudur #-1 SF6

breaker & Annual relay testFeeder will be radial from other end. Hence no SS will be affected. POSSIBLE Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 17:00 1 0 Approved


110 KV Kayathar - Periyar # Breaker with CT

and New C&R panel replacement work by

GRT

a) For Monthly Maintenance workB) New C&R panel

replacement work by GRTDuring the LC period other end also avails LC. Hence, no ss affected.

NOT

POSSBLEThu, 27-Apr-2017 9:00 Fri, 28-Apr-2017 17:00 2

LC programed

before 15th Apr

and along with s/d

Not approved

1361 Madurai 230 KV KADALANGUDI 230 KV 230 KV Kadalangudi -Thiruvarur feederFor carrying out premonsoon inspection works by



interruption to any SS.POSSIBLE Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 17:00 1 0 Approved

1362 Erode 110 KV karamadai230KV110KV Karamadai-Irumborai feeder breaker,

CTs & CVTs.For maintenance works. Total shutdown availed by Irumborai SS. possible Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 14:00 1

subject to

irumborai ss

availing tsd

Approved


110KV Salem - KR Thoppur II feeder section

between Karuppur 110KV SS and KR

Thoppur 400KV SS.


1) 110KV Salem - KR Thoppur II feeder breaker kept hand tripped at KR Thoppur 400KV

SS.2) 110KV Salem - KR Thoppur II feeder series switch at Karuppur 110KV SS towards

KR Thoppur will be kept opened.3) There will be no supply in 110KV Salem -KR Thoppur

II feeder section between Karuppur 110KV SS and KR Thoppur 400KV SS.4) 110KV

Salem - KR Thoppur II feeder will be radially fed upto Hastampatty 110KV SS from Salem

230KV SS.5) Karuppur 110KV SS will be availing total shutdown on that day.5) There will

be no interruption of supply to any SS.


subject to

karuppur ss

availing tsd

Approved

1364 Madurai 230 KV PERAMBALUR 230 KV

1)230/110KV Auto Transformer I (100MVA),

HV I Breaker & LV I breaker, CT's, Isolators.

2)110KV DSSL (Krishnapuram) Feeder

breaker,CT's and Wave trap,Line PT. 3)

110KV DSSL Feeder Line section between

Perambalur SS and Esanai SS.

1)For monthly maintenance work and to attend Oil

Leakege in 110KV Line P.T of DSSL Feeder 2)For

annual relay test by wing GRT/Trichy.

During above period of shut down 1)110KV Kallakudy -I feeder and 110KV DSSL

(Krishnapuram)feeder tie will be opened at Perambalur SS. 2)The remaining loads will be

fed Through Auto Transfermer III(100MVA) of Perambalur Auto SS.



230 KV

110KV Pattukkottai -Peravurani -

Sethubavachitram-Keeramangalam Radial

feeder. (LP: 110KV Sethubavachitram SS to

110KV Keeramangalam SS ).

For Premonsoon Inspection Work by

AE/Lines/pattukkottai.

1) DURING THE LC PERIOD 110/33-11KV PERAVURANI SS, 110/33KV

SETHUBAVACHATHIRAM SS FED FROM 110 KV PATTUKKOTTAI SS RADIALLY.2)

110KV KEERAMANGALAM SS LOAD WILL BE TRANSFERRED TO 230 KV

PUDUKKOTTAI SS3) NO INTERRUPTION TO ANY OTHER SS. 4) LC APPROVAL TO

BE OBTAINED FROM SE/O/TRICHY.

POSSIBLE Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 17:00 1Sub to load

conditionApproved

1366 Erode 110 KV LOWER METTUR 1 110kV common bus L.C

a) 110 kV additional bus PTs' com missing works by

AEE/P&C/Metturb) To carry out annual relay test in

110 kV BPH-1 to MDPH feeder and 110 kV BPH-1 to

BPH-2 feeder by AEE/P&C/Mettur

During the L.C perioda)Unit-1 in standby condition and unit -2 will be under independent

spell AOH worksb)The PWD demand will be met out by unit-1 after completion of

common bus L.C works.c)As present the LMBPH-1/chekkanur bondage HRL (190.70) is

lower then the FRL.


subject to the

import at erode ss

bus and the load

condition existing

Approved

1367 Chennai 110 KV CUDDALORE 230 KV110 KV Capacitor Bank II with Breaker &

For monthly maintenance worksDuring the period of LC110 KV Capacitor Bank I will be in serviceHence NO Interruption

of SupplyConcurrence obtained from SE/O/Villupuram0 Thu, 27-Apr-2017 09:00 Thu, 27-Apr-2017 17:00 1

Concurrence from

SE/O

Concurrence from

SE/O


For replacement of damaged disc at Loc 334 & 335.feeders 230KV Link I, Link II, S. P.Koil feeders are in service.Hence there will be no



1369 Erode 230 KV SINGAPURAM 230 KV Auto Transformer (Auto Transformer-II) Monthly Maintenance

1.Monthly Maintenance only one Auto Transformer is available and Auto Transformer will

not be in service and intermediate SS loads will be fed radially from other ends,230KV

feeders will be fed radially.(No LC Proposed at DVKY.End & at salem end)and 110KV

Udyapatty SS is availing TSD on 27.04.2017.


both the 230 kv

and 110 kv bus to

be in service

Approved

1370 Erode 230 KV KUNDAH PH3 230KV KPH3 to Karamadai Feeder

230KV KPH3 to Karamadai Feeder Tower No:60 to


work.

Bus and line both end open condition earth switch closed condition. postponed Thu, 27-Apr-2017 9:00 Thu, 27-Apr-2017 17:00 1

to be scheduled

on 26.04.2017

along with

maintenance

works

Already approved

1371 Chennai 230 KV SPKoil230 KV 230 KV Kalpakkam feeder 1 Insulator Replacement work Possible Fri, 28-Apr-2017 09:00 Fri, 28-Apr-2017 17:00 1 0 Approved

1372 Madurai 110 KV PASUMALAI 230 KV1)110 KV Pasumalai - Anupankulam # BKR

& CT, LI only. 2) Line entire

1)Maintenance Works of BKr & CT,LI 2)Flash over

Disc replacement works in Aviyur Spur Line

1) Virudhunagar. Aviyur and Railway Traction loads will be Transferred to 110KV

Pasumalai Thullukkapatty Feeder. 2) If necessary the above feeder can be kept radial

from any one end .3) Hence No interruption of Supply to any SS

POSISBLE Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 14:00 1

Dub to ANPM

AUTO 1 LC for

10Days

Approved


KV

110 KV APKM - MADURAI # Br., CT., and

line entire

a) For Monthly Maintenance Works. b) For flash over

disc replacement work at Loc No. 5 & 14

During the LC period 110 KV Virudhunagar SS,110 KV Aviyoor SS & Railway Traction SS

load will be transferred to 110 KV PSQ - Thulukkapatti # Already AE/L/PSQ programed

lines LC. Other end also availing LC on the same date and time. Hence no ss affected

NOT

POSSIBLEFri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 17:00 1

Due to ANPM

AUTO 1 LC for

10Days

Approved

1374 Chennai 400 KV Alamathy 400 KV 400 KV SVC-I feederFor CT tan delta testing and isolator allignment

work.1. 400 KV SVC-I feeder will not be in service.2. 400 KV SVC-II feeder will be in service.

Possible OCC


1375 Madurai 230 KV KODIKURICHY 230 KV On 230KV Bus Section I # For Monthly Maintenance work

During the lc period: 1Auto I Will be Out of Service AutoII & III Will Cater the Present SS

Load, 389 mB will be kept at open condition.2 230 KV Veeranam # or Auto I load will be

transferred to main bus through Tie breaker by closing of transferred bus isolators3Auto I

load will be transferred through Tie breaker that condition 230kv Veeranam # Will be

radial from Other End.4230kv Veeranam # load will be transferred through Tie breaker

that condition Auto I Out of service.

POSSIBLE Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 17:00 1 Sub to wind gen Approved

1376 Madurai 230 KV KAYATHAR 230 KVOn 230KV Kayathar - (400KVSS)Kayathar II



Tower inspection work.During the LC period, Other end also availing LC. Hence no SS affected. POSSIBLE Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 17:00 1

sub to

normalizaiton of

KYR #1

Approved subject to

Normalisation of

feeder 1

1377 Erode 110 KV ANTHIYUR 230 KV 110KV Anthiyur - Mettur entire feeder.For monthly maintenance of Breaker,CT and Line

switch.

During the LC period Mettur end also programmed to avail LV on 110KV Anthiyur-Mettur

feeder.No SS will be affected.postponed Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 15:00 1

already scheduled

on 26.04.2017

Subject to

EE/SLDC/Erode

approval

1378 Erode 110 KV ANTHIYUR 230 KV110KV THALAVAIPET FEEDER BREAKER

CT AND LINE SWITCHMONTHLY MAINTENANCE WORKS

DURING LC PERIOD 110/22KV THALAVAIPET SS WILL AVAIL TOTAL SHUT DOWN

AS APPROVED. NO SS WILL BE AFFECTED.possible Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 15:00 1

subject to

thalavaipettai ss

availing tsd

Approved


1. 110KV UNJANAI - SANKARI FEEDER

BREAKER , T'S AND LINESIDE ISOLATOR

ONLY.2. 230KV UNJANAI - SALEM

400KVSS FEEDER BREAKER, CT'S AND

LINESIDE ISOLATOR ONLY

FOR MONTHLY MAINTENANCE WORK

DURING L.C PERIOD, 1. SNAKARI 110KVSS ALSO AVAILING TOTAL SHUTDOWN ON

THAT DAY.SALEM 400KVSS ALSO AVILAING L.C ON THAT FEEDER ON THE SAME

DAY


sankagiri ss tsd

scheduled for

21.04.2017

Subject to

EE/SLDC/Erode

approval


KV

On 110 KV TTN - ARNI - II # Breaker with CT

bus & line side switchesfor monthly maintenance work

No ss will be affected. During this Lc period 110KV Manjalneerkayal SS will be radialy fed

from 110KV Arni-SSPOSSIBLE Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 17:00 1 0 Approved

1381 Erode 230 KV Salem 400 KV230 KV LinkII # - Its CTs, BREAKER, BUS &

LINE SWITCHESBoth end Monthly Maintenance Work Both end Monthly Maintenance Work. possible Fri, 28-Apr-2017 8:00 Fri, 28-Apr-2017 14:00 1

subject to the

other link feeder

loading condition

Approved

1382 Madurai 110 KV VALUTHUR 230 KV 110KV VGTPS - Phase II line 3For attending breaker, CT's and isolators Monthly

maintance work.

During the LC period 110KV VGTPS Phase I Line 4 and VGTPS Phase I line 3 feeders

will be in service.POSSIBLE Fri, 28-Apr-2017 10:00 Fri, 28-Apr-2017 17:00 1 0 Approved


KV

1.110KV Thevur #,2.110KV BKB-I#,3.110KV

Bus coupler,4.Auto Transformer-I-HV &LV

Side,5.Auto Transformer-II-HV &LV

Side,6.230 KV Gobi #,7.230KV K.R.Thoppur#

8.230KV Bus coupler CTs,Breaker

Tan Delta value measurement in CTs

LC to be availed one by one1.Thevur 110KV SS proposed tsd2.Radi1ally fed from other

end3.Auto Transformer-1 will be manage 110KV BKB-1# and Sankar-I# Load and Auto

Transformer -II will be manage the 110KV Sankari- II#,Barrage-IV # and Thevur#

load4.Auto II Transformer will be manage the load5.Auto I Transformer will be manage

the load6.Radially fed from other end7.Radially fed from other end8.Both Auto

Transformer and 230KV Feeders load Transfer to 230KV Bus I

postponed Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 17:00 1already scheduled

on 21.04.2017

Subject to

EE/SLDC/Erode

approval


230KV UDAYATHOOR-

ABISEKAPATTI(PGCIL)FEEDER,

BR.,CT.CVT&L.SW

MONTHLY MAINTENANCE WORKDURING THE LC PERIOD THERE WILL BE NO SUPPLY TO ENTIRE FEEDER. OTHER

END WILL BE INFORMED.POSSIBLE Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 14:00 1 App 129 occ/183 Approved

1385 Madurai 110 KV THIRUVARUR 230 KV110KV Narimanam - CPCL - Nagapattinam

feederLine premansoon inspection and rectification work

During the LC period the 110KV Narimanam - Nagapattinam feeder will be in service.

Hence there will be no interruption of supply to any other substation.POSSIBLE Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 17:00 1 0 Approved


230 KV

230 KV OKM-Coimbatore Feeder Entire



monthly maintenance works.During the LC period, the other 230 KV feeders are in service to cater the SS loads. possible Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 17:00 1

other feeders will


1387 Erode 230 KV DEVIAKURICHI 230 KV230 KV STCMS # Breaker, CTs and line side

isolatorFor Monthly Maintenance work 230 KV Deviakurichy- Pudanchandai & Singapuram Feeders will be in service possible Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 17:00 1

other feeders will


1388 Erode 230 KV COIMBATORE 230 KV230KV CBE-Othakalmandapam Feeder

Breaker, CTs and 89L IsolatorFor Monthly Maintenance Works LC Proposed on 230KV OKM-CBE Feeder at 230KV OKM SS possible Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 15:00 1

other feeders will


1389 Erode 110 KV UDUMALPET 230 KV 110KV CAPACITOR BANK I ENTIRE FOR MONTHLY MAINTENANCE WORKS NO FEEDERS WILL BE AFFECTED DURING THE LC PERIOD approved Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 17:00 1

subject to the

voltage profile in

the grid

Approved

1390 Chennai 230 KV Sriperumbudur 400 KV 230KV SPR-NCTPS Feeder and entire line Quarterly maintenance and jumper tightness work All other 230kv feeders will be in service Possible Fri, 28-Apr-2017 09:00 Fri, 28-Apr-2017 17:00 1 0 Approved


KV

230 KV Sadayapalayam-Palladam # breaker

CT's & Isolators.Annual relay testing work by P&C Palladam. 230 KV Sadayapalayam-Ponnapuram # in service. possible Fri, 28-Apr-2017 10:00 Fri, 28-Apr-2017 17:00 1

subject to the tsd

relief at palladam

ss after the issue

of 230 kv okm to

cbe feeder

Approved

1392 Madurai 110 KV SAMAYAPURAM 230 KV110 KV SMPM-Kallakudi -II # CT's , Breakers

and entire line portion (tied feeder) .Monthly Maintenance Works and Line Patrol Work.

1. During the above LC Period, 110Kv Kallakudy II # Breaker is in H/T condition at 230KV

Tahtchankurichy SS . 2.110Kv Thatchankurichy II# Breaker is in H/T condition at 110KV

kallakudy Grid SS. 3.Bus and Line Isolator towards 110KV Kallakudy Grid SS will be kept

in open condition at 230KV Thatchankurichy SS. 4.Line Isolator towards 230KV

Thatchankurichy SS will be kept in open condition at 110KV Kallakudy Grid SS. 5. Earth

switch will be kept in closed condition at 110Kv Kallakudy grid ss and 230KV

Thatchankurichy SS. 6.110 KV Kallakudi-I # will be in tied condition. 7.There will be no

interruption to any other SS.


1393 Erode 230 KV ARASUR 230 KV230/110 KV Autotransformer - IV, HV-VI, LV-

For Monthly maintenance work and Annual relay

testing works by P & C wing /Thudialur(110 KV

Kaniyur SS under total Shut down)

During the LC Period other 3 Nos of Auto transformer will be in service.During the LC

Period 110 KV Kaniyur SS total Shutdownpossible Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 17:00 1

subject to the

other auto trs

loading limit

Approved

1394 Madurai 230 KV ALUNDUR 230 KV100 MVA Auto Transformer - II ,HV-II,LV-II

Breaker's, CT's and Isolators.a) Monthly maintenance work. b)Relay Testingwork.

During the LC period, a)An Other 100 MVA Auto Transformer -I will be in service. b) All

other 110 KV feeders will be in service. c) There will be no interruption of supply to any

other feeders.


1395 Erode 230 KV SALEM AUTO 230 KV230KV Link Feeders II feeder Breakers, CTs

and Line isolators.Monthly Maintenance work.

230KV Link-II feeder will be radially fed from other ends. 3Nos 230KV feeder will be in

service and there will be no interruption to any SS or feeder.possible Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 17:00 1

subject to the

other link feeder

loading condition

Approved

1396 Madurai 230 KV kayathar230kv230Kv Kayathar-2 feeder Main Breaker (205-

52),CT and CVTMonthly Maintenance work

During the LC period there will be no supply in 230Kv Kayathar-2 feeder Main Breaker

(205-52),CT and CVT. hence no substation affectedPOSSIBLE Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 17:00 1

sub to

normalizaiton of

KYR #1

Approved


KV230kv Kamatchi feeder

Monthly maintenance work, CT clamp, and bolt nuts

replacement work

Concurance to be obtained from M/s. Kamatchi during the period of Shut down the 230KV

Kamatchi private generation may be floating there is no intrupption gridPossible Fri, 28-Apr-2017 10:00 Fri, 28-Apr-2017 17:00 1

Subject to

concurrence from

M/s. Kamatchi

Approved

1398 Erode 230 KV PONNAPURAM 230 KVAUTO TR-III, HV-III, LV-III Breaker and Its

CTsFor Monthly Maintenance works.



TO THIS END 3. HENCE, IT IS EXPECTED THAT THE LOADS WILL BE WITH IN THE



subject to the

other auto trs

loading limit

Approved


KV

110KV Kalappanaickenpatty feeder CB, CTs

and Line Switch.110KV East Bus, its Pts and

Bus side Switches-5 Nos.

For regular maintenance works. Originally scheduled

on 21.04.2017 is now revised due to change of Total

Shut down by KN Patty SS-approved.

During LC period110KV KN Patty SS availing Total Shut down.110KV Rasipuram SS will

be transferred to 110KV Salem-Mallur feeder.110KV Namagiripet SS will be transferred to

110KV DVk-Thammampatty feeder.Other 110KV Feeders will be catered by Auto-I in

servive.No supply interruption.

1. possible 2.

postponedFri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 17:00 1

1. subject to kn

patty ss tsd;

2.load transfers

not feasible

Subject to

EE/SLDC/Erode

approval

1400 Madurai 110 KV THANJAVUR 230 KV110 KV Thanjavur - Punalkulam feeder

Breaker, CT & Line Isolator.


AEE/Mtce/Thanjavur.

During the LC period,1) 110 KV Punalkulam - Trichy feeder will be radial from Trichy 230

KV SS upto Punalkulam 110 KV SS,2) the other end also (i.e. Punalkulam 110 KV SS)

will avail LC on the same day,3) Punalkulam 110 KV Grid SS will avail shutdown on the

same day,4) no supply interruption to any SS.







BETWEEN 110KV ULLIKKOTTAI SS TO

110KV OKKANADU KEELAIYUR SS .


JE/LINES/ PATTUKKOTTAI.

1) DURING THE LC PERIOD, 110KV MANNARGUDI SS AND 110KV OKKANADU

KEELAIYUR SS RADIALLY FED FROM 230KV THIRUVARUR SS.2) 110KV

ULLIKKOTTAI SS RADIALLY FED FROM T(K)GTPS . 3) NO INTERRUPTION TO ANY

SUBSTATIONS.



110 KV Palladam feeder breaker,CT's and

Line side isolator with Line up to 110 KV

Palladam SS

1) To carryout Monthly maintenance on equipment's

by AEE/Maintenance/Palladam2) To carryout

Premonsoon inspection on Lines by

AEE/Lines/palladam

During LC period 1) 110 KV Palladam SS availing Total shut down2) No other sub station

will be affectedpossible Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 17:00 1

subject to

palladam ss

availing tsd

Approved


110 KV Palladam - Elavanthy feeder

breaker,TCT's and Line side isolator with line

up to 110 KV Pongalur SS

1) To carryout Monthly maintenance work on

equipments by AEE/maintenance/Palladam2) To

carryout Premonsoon Inspection on Line by

AEE/Lines/Palladam

During LC period 1) 110 KV Elavanthy SS and 110 KV Pongalur SS availing Total shut

down2) No other SS will be affectedpossible Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 15:00 1

subject to

pongalur and

elavanthy ss

availing tsd

Approved


230 KV Palladam - Sadayapalayam feeder

breaker,CT's and line side isolator with entire

line

1) To carryout Monthly maintenance works on

equipment's by AEE/Maintenance/Palladam2) To

carryout premonsoon inspection on Line by

AEE/Lines/palladam

During LC period 1) other 2 Nos 230 KV feeders will be in service2) 110 KV Pongalur SS

and 110 KV Elavanthy SS availing Total shut downpossible Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 17:00 1

subject to the tsd

relief at palladam

ss after the issue

of 230 kv okm to

cbe feede

Approved

1405 Chennai 110 KV CUDDALORE 230 KV For monthly maintenance worksDuring the period of LC110 KV Capacitor Bank II will be in serviceHence NO Interruption

of SupplyConcurrence obtained from SE/O/Villupuram0 Fri, 28-Apr-2017 09:00 Fri, 28-Apr-2017 17:00 1

Concurrence from

SE/O

Concurrence from

SE/O

1406 Chennai 230 KV THIRUVALAM 230 KV 230KV Thiruvalam - Chittoor feeder entire. For EHT Line Maintenance Worksfeeders 230KV Link II, Mosur, Link I feeders are in service.Hence there will be no


Possible OCC


1407 Chennai 230 KV THIRUVALAM 230 KVi)On 230KV Chittoor interstate feeder

i)For Monthly Maintenance Works

230KV Link-I # and 230KV Mosur feeders will be in service and cater the SS Loads.

Hence there will be no interruption of supply please.

Possible OCC


1408 Erode 110 KV ALIYAR 230 KV

110KV ALR-UDT-II FEEDER CB,CTs AND

LINE SECTION BETWEEN ALR SS&DEV-

PUDUR SS

PMI work by JE/Lines/Pollachi and Half-yearly MTtce

workDuring the LC period UDT-1 feeder will caters the load possible Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 14:00 1

subject to

devanurputhur ss

being fed from

udpt ss

Approved



For providing of dropper jumper in 230KV

Anuppankulam - Madurai feeder Bus Bar to 230KV

strung Bus, line switch to terminal tower and HV-I

isolator.( Augmentation of 100MVA to 160MVA Auto

Transformer work)

During the LC period,Auto transformer - I, HV-I, LV-I in tripped condition.230KV

Anuppankulam-Kayathar feeder and 230KV Anuppankulam-Madurai feeder will be under

total shutdown.Auto Transformer-II & III will be fed from 230KV Anuppankulam-Sterlite

feeder only.

POSISBLE Fri, 28-Apr-2017 9:00 Fri, 28-Apr-2017 12:00 1 0 Approved

1410 Chennai 110 KV Villapuram 110 KV 110 KV VPM- Kandamangalam Breaker & CT maintenance works

110KV Valavanur SS availing Total shutdown and 110KV supply to the

110KVKandamangalam SS will be fed from Villupuram 230KV SS. by closing the Possible Fri, 28-Apr-2017 09:00 Fri, 28-Apr-2017 17:00 1 0 Approved

1411 Chennai 230 KV SPKoil lines Auto Transformer 3 Monthly Maintenance Work Possible Sat, 29-Apr-2017 10:00 Sat, 29-Apr-2017 17:00 1 approved Approved

1412 Chennai 230 KV SPKoil lines 230 KV Kalpakkam-Echur feeder Insulator Replacement work Possible Sat, 29-Apr-2017 10:00 Sat, 29-Apr-2017 17:00 1 approved Approved


230 KV

On 110 KV Sipcot- Eppodumvendran Feeder

breaker with CT's only.For monthly maintenance works.

Â During the L.C period No SS will be affected, 110KV loads will be radially fed from

other end. Â Â Â Â Â POSISBLE Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 17:00 1

Due to Kayathar

Auto LC and

KDKRI Bus LC

Approved

1414 Madurai 110 KV ABAN110KV Papanasam-Servalar#2 Breaker with

CTFor carry out Monthly Maintenance work

Present PWd Demand is 200C/S.During the LC period, the servalar Machine is under

stand by condition. Hence no ss will be affected please.POSSIBLE Sat, 29-Apr-2017 10:00 Sat, 29-Apr-2017 12:00 1

After s/d of SVLR

m/cApproved

1415 Madurai 230 KV KODIKURICHY 230 KV On 230KV Bus Section II Monthly maintenance work

1auto II&III Will be Out of Service Auto I Will Cater the Present SS Load, 389 mA, 389

mB will be kept at open condition.2230kvAmuthapuram I & II # Will be radial fed from

Other End.otherwise the Auto II load TRANSFERRED to the tie breaker.

POSSIBLE Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 17:00 1 sub to wind gen.Approved Subject to

load condition

1416 Erode 110 KV ANTHIYUR 230 KV 110KV Anthiyur feeder breaker and CT only.For monthly maintenance of Breaker,CT and Line

switch.

During the LC period 110KV Anthiyur feeder will be fed through 110KV Thalavaipettai

feeder.Hence no SS will be affected.possible Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 15:00 1

subject to transfer

to thalavaipettai

feeder

Approved

1417 Madurai 110 KV PERIYAR 110 KV PERIYAR - THENI -III FEEDERFeeder Breaker with CT and Line side AB Switch

Annual Maintenance work.

During the LC period feeder Radial from Theni SS up to Markayankottai SS. 110 KV AB

Switch towards Periyar kept open at Markayankottai SS. NO SS will be effected.POSSIBLE Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 13:00 1 Sub to wind gen Approved

1418 Madurai 110 KV KODIKURICHY 230 KVOn 110KV Papanasam-Servalar II feeder

entire line.

For tree cleareance work and jumper bolt

rectification work at location No. 9 R phase

During the LC period,I) Servalar powerhouse generation will be shutdown condition. ii)

EE/O Papanasam has also applied for monthly maintenance work.POSSIBLE Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 17:00 1

After s/d of SVLR

m/cApproved

1419 Erode 400 KV Salem 400 KVBREAKER, & Its SWITCHES

Monthly Maintenance WorkHV Breaker III will be in service condition, Hence there will be no interruption of supply to

400 / 110 KV Auto transformers III.possible Sat, 29-Apr-2017 8:00 Sat, 29-Apr-2017 14:00 1 occ approved Approved

1420 Madurai 110 KV VALUTHUR 230 KV 110KV Valuthur Penna feeder entire. Tree cutting workDuring the LC period 110KV Penna - Kavanoor feeder will be in service . Hence, there is

'no' interruption in power evacuation.POSSIBLE Sat, 29-Apr-2017 10:00 Sat, 29-Apr-2017 17:00 1 0 Approved


TTY 230 KV

110KV NALLAMANAICKENPATTI FEEDER

BREAKER WITH C.T AND LINE ISOLATOR.FOR MONTHLY MAINTENANCE WORK.

DURING THE L.C PERIOD 110KV NALLAMANAICKENPATTI SS WILL BE AVAILING

TOTAL SHUT-DOWN ON THAT DAY.NO SS WILL BE AFFECTED.POSSIBLE Sat, 29-Apr-2017 10:00 Sat, 29-Apr-2017 14:00 1 0 Approved

1422 Madurai 110 KV KADALANGUDI 230 KV 110KV Kadalangudy- KGTPS feeder entire Line inspection and rectification work.No interruption to any SS. All other feeders at KGTPS plant and Kadalangudy SS will be

in tied condition.POSSIBLE Sat, 29-Apr-2017 10:00 Sat, 29-Apr-2017 16:00 1 0 Approved

1423 Madurai 110 KV KADALANGUDI 230 KV 110KV KGTPS- Kumbakonam feeder entire For Line inspection and rectification workNo interruption to any SS. 110KV Sakkotai and Urban SS proposed to shutdown. All other

feeders will be in tied condition at KGTPS plant.POSSIBLE Sat, 29-Apr-2017 10:00 Sat, 29-Apr-2017 16:00 1 0 Approved

1424 Madurai 110 KV KARAIKUDI 230 KVOn 1)110KV KKDI # Bkr & Ct's 2) 110KV

KKDI # Entire.1)For Monthly Mtc work.2)For Tree Cutting work.

During the L.C Period the 110KV KKDI SS under TSD. Hence there will be No interruption

of Supply.POSSIBLE Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 17:00 1 0 Approved


KV110KV Barrage IV Feeder CT,Breaker Monthly maintenance work Urachikotai 110KV SS Total shutdown on that day and Radially fed from another end possible Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 17:00 1

subject to the

feeder being kept

radial from bph 4

end

Approved

1426 Madurai 230 KV then I 230 KV110KV TNI-PYR III # ( SEC BETWEEN

M.G.KOTTAI AND PYR PH)

LINE MONTHLY MTCE AND PREMONSOON

INSPECTION WORKS

NO INTERRUPTION TO ANY SS .LINE UPTO MGKOTTAI SS WILL BE RADIAL FROM

THENI SSPOSSIBLE Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 17:00 1 Sub to wind gen Approved


110 KV KGTPS-KADALANGUDI FEEDER


END.

110 KV KGTPS-KADALANGUDI FEEDER ANNUAL

RELAY TESTING WORKS BY


TESTING WORKS AND OTHER MAINTENANCE

WORKS IN ISOALTORS AT KGTPS END.

During the LC period there is no interruption of supply to any ss since110KV Sakkottai SS

and 110KV Urban SS Kumbakonam are availing total shutdown.POSSIBLE Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 17:00 1 0 Approved


110 KV KGTPS-KUMBAKONAM RADIAL

FEEDER BREAKER WITH ENTIRE LINE AT

BOTH END.

BREAKER TESTING WORKS AND OTHER

MAINTENANCE WORKS IN ISOALTORS AT

KGTPS END.

During the LC period there is no interruption of supply to any ss since110KV Sakkottai SS

and 110KV Urban SS Kumbakonam are availing total shutdown.110 KV KGTPS-

Kadalangudi feeder is availing LC at both ends on the same day.



230 KV230KV TBC breaker Monthly Maintenance works Already TBC Breaker is in standby condition POSSIBLE Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 14:00 1 0 Approved


A) 110 KV KAVANOOR-PARAMAKUDI # BR.

& C.T. B) 110 KV KAVANOOR-

PARAMAKUDI # SEC. BET. KAVANOOR

AND PARAMAKUDI


MAINTENANCE WORKS

ILYNGDI AND MRVMNGLM LOADS TO BE TRD. TO 110 KVNR-MMDU # AND KEPT IN

TIED CONDN. PARAMAKUDI SS UNDER TOTAL SHUTDOWN; L.R. -13.5 MW;

ACE/OPN/MDU APPROVAL


1431 Madurai 230 KV UDAYATHUR 230 KV 230KV POWER TR4,HV&LV BREAKER. MONTHLY MAINTENANCE WORKDURING THE LC PERIOD THE POWER TR4 LOADS WILL BE FED FROM OTHER

POWER TRSPOSSIBLE Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 14:00 1 Sub to wind gen Approved


230 KV

230/110 KV Auto Transformer-I (HV & LV

Breakers, CTs & LAS)



During the LC period, (1) 110KV OKM-TDLR I or II feeder loads will be transferred to 230

KV TDLR SS.(2) The remaining two Auto Transformers are in service to cater the SS

loads.Hence, No SS will be affected.


subject to the

other auto trs

loading limit

Approved


230 KV

110 KV OKM-Sulur # section between 230KV

OKM SS and 110KV Edayarpalayam SS.for P.M.I works by lines/TDLR wing.

During the LC period,(1) 110KV Peedampally SS loads will be transferred to 230KV

Arasur SS.(2) Supply interruption to L&T EHT Service.(3) 110KV Edayarpalayam SS fed

from 110KV OKM-Negamam II feeder of 230KV OKM SS.Hence, No SS will be affected.

possible Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 14:00 1subject to the

transfer of loadsApproved

1434 Erode 230 KV Udumalpet 400 KV230 KV MYVADI - 230 KV BUS COUPLER

BREAKERMONTHLY MAINTENANCE WORK MYVADI END ONLY possible Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 17:00 1

all the feeders are

connected with

both the bus

Approved

1435 Chennai 110 KV ARNI 230 KV110KV Arani - Sirungattur Feeder Breaker

and 110KV CT's with Isolators.

For monthly maintenance work,CT and Isolator Bolt

nut Replacement work.

During the Period of Shut down the 110KV Sirungattur SS (30 MW)and 110KV

Mambakkam SS (12 MW) are availing total shut down. Hence there will be no interruption

of Supply.



110KV KAYATHAR-K.G.PATTI FEEDER

SECTION B/W PERUMALPATTI &

KARIVLAMVANTHANALLUR


DURING THE LC PERIOD,I.PERUMALPATTI ss WILL BE RADIALLY FED FROM

K.G.PATTI,II.KARIVALAMVANTHANALLUR SS WILL BE RADIALLY FED FROM

KAYATHAR HENCE NO SS AFFECTED


sub to load

condition and wind

gen

Approved

1437 Chennai 230 KV ARNI 230 KV230/110KV Auto Transformer No II,HV II

Braeker,230KV CTs,110KV LV II Breaker

Monthly Maintenance work, HV II Breaker Monthly

Maintenance work, 230 KV CTs and 230KV Isolators

Bolt Nuts replacement work

During the period of LC 1)The 110KV Sirungattur SS (30 MW) availing Total SD2)The

110KV Mambakkam SS (12 MW) availing Total SD3)230/110KV Auto-Transformer-II off

condition4)230/110KV Auto-Tansformer-I & III will be in service and Catering the station

loads.Hence there will be no interruption of supply


1438 Erode 110 KV UDUMALPET 230 KV 110KV CAPACITOR BANK II ENTIRE FOR MONTHLY MAINTENANCE WORKS NO FEEDERS WILL BE AFFECTED DURING THE LC PERIOD approved Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 17:00 1

subject to the

voltage profile in

the grid

Approved


KV110KV SVC - Palayaseevaram # entire for monthly maintenance work During the LC period the 110KV SVC - Palayaseevaram # will be out of service To be discuss Sat, 29-Apr-2017 09:00 Sat, 29-Apr-2017 17:00 1 0 Approved

1440 Madurai 110 KV SAMAYAPURAM 230 KV 110KV SOUTHERN BUS ONLYMonthly Maintenance Work & to check the tightness

of bolts and nuts.

1. During the LC period , 110 KV SMPM- Srirangam # tie opened at 230 KV SMPM SS

and radially fed from230KV Trichy Auto SS. 2. 110 KV SMPM-Trichy Grid # tie opened

and radial from 110KV Trichy Grid SS. 3. 110 KV SMPM-KKDY # 2 tie opened at 230 KV

SMPM SS and radial from110KV KKDY SS 4. 110 KV Musiri # will be back fed thro'110

KV KKDY -Perambalur II # fed from KKDY 110KV SS by closing ABS.2, 3 & Musiri

Breaker at 110 KV T.Pet SS. 5. 110 KV Musiri # Breaker at 230 KV SMPM SS will be in

H/T condition and bus & Line Isolator kept opened & Locked. 6. 110 KV Bus isolator No.

29 BS at 230 KV SMPM SS will be kept opened. 7. Auto Tr. I HV/LV Breaker in H/T

condition & Isolators in open condition. 8.Auto Tr. II 100 MVA, 110 KV Siruganur #, 110

KV KKDY # 1 in 110 KV Northern Bus will be in service. 9. No interruption to any 110 KV

SS. Necessary concurence obtained from EHT consumer in 110 KV Musiri # (Arise)

POSSIBLE Sat, 29-Apr-2017 10:00 Sat, 29-Apr-2017 17:00 1sub to load

conditionApproved

1441 Madurai 230 KV SANKANERI 230 KV230/33KV PowerTransformer-III,HV&LV

Breaker,CTs only.


Testing purpose.

During the LC Period PowerTransformer-III willnot beinservice.PowerTransfomer-I&II

willbe Carried out the EntireLoad.POSSIBLE Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 14:00 1

sub to wind gen

and no blocking of

wind gen

Approved

1442 Erode 110 KV SALEM AUTO 230 KV110 KV K.R.Thoppur Feeder - I Breaker CT's

and line Isolators.Monthly Maintenance work.

110 KV K.R.Thoppur feeder - I will be radially fed from other end. 110KV Karappur SS will

be availing total shutdown. There will be no interruption to any SS or feeder.postponed Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 17:00 1

karuppur ss tsd

scheduled for

27.04.2017

Subject to

EE/SLDC/Erode

approval

1443 Madurai 230 KV kayathar230kv 230KV Bus Coupler only Monthly Maintenance workDuring the LC period there will be no supply in 230KV Bus Coupler only. hence no

substation affected.POSSIBLE Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 17:00 1 0 Approved


KV

1.110 KV Dharmapuri feeder breaker, CTs

and Line Switch


maintenance

110 KV Dharmapuri SS Availing total Shutdown Expected Load Relief : 24 MW hence

there is no interruption of power supply and 110 KV Adhiyamankottai SS Feed through

110 KV Ramiyanahalli feeder from 230 KV Karimangalam SS.

possible Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 14:00 1subject to

dharmapuri ss tsdApproved

1445 Erode 230 KV PONNAPURAM 230 KV 230 KV Northern Bus EntireFor tightness checking of all clamps and Alignment

of M-I Isolater Switches.

1. IT IS EXPECTED THAT THE WIND GENERATION WILL BE IN MODERATE LEVEL2.

HENCE, 230KV MYVADI- I & II # will cut off,3. 110KV PETHAPPAMPATTY # WILL BE

KEPT RADIAL FROM 230KV UDT SS UP TO THIS END4. 110KV THUNGAVY # WILL

BE KEPT RADIAL FROM 230KV UDT SS UP TO THIS END 5. Auto Tr I&III Will be cut

off, as the Loads will be with in the limit of other Auto Tr.6. Hence no SS will be affected.

postponed Sat, 29-Apr-2017 10:00 Sat, 29-Apr-2017 17:00 1

the lc will be

issued on priority

if the condition

permits on that

day or on any day

when the wind

generation is

adequate

Subject to

EE/SLDC/Erode

approval


KV

29.04.2017 ---Auto Transformers No. I &

110KV Ambur # & 110KV VNM SS (GC )

For replacing the defective surge monitors in 230

/110 KV LAS and for carrying out routine monthly

maintenance works.




dt:21.03.2017.2,3,During the totalshutdown on 29.04.2017 ,there will be no supply to

following 110/11 KV sub station,1) Anaicut SS,2) Pakkam SS, 3)Vinnamangalam (GC)

SS ,4)Ambur SS, 5)Somalapuram SS,6) Vadakathipatty SS and the Valathur Railway

Traction loads will be tranfered 230 KV Thiruvalam SS.


1447 Madurai 230 KV THANJAVUR 230 KV230 KV Thanjavur - PPN feeder, Breaker, CT,

CVT.





interruption to any SS.POSSIBLE Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 17:00 1 0 Approved

1448 Erode 230 KV PALLADAM 230 KV230 KV TBC breaker and 230 KV Transfer

Bus entire

To carryout Monthly maintenance on equipment by

AEE/maintenance/palladam

During LC period 1) All 230 KV feeders and Auto transformers will be in service2) No

other Sub Station will be affectedpossible Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 17:00 1 idle breaker Approved

1449 Erode 230 KV KUNDAH PH2230KV AUTO TRANSFORMER 1,2,3 AND

ITS ACCESSIORIESFOR MONTHLY MAINTENANCE WORK SF6 BREAKER OFF IN CONDITION TOP AND BOTTOM BUS OPEN IN CONDITION 0 Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 17:00 1 SLDC /Erode Approved

1450 Chennai 110 KV THIRUVALAM 230 KV For EHT Line Maintenance Works. Anicut SS to 110 KV V.Patty SS.ii. The 110KV Anicut SS, 110KV V.Patty are availing

Total Shutdown Hence there will be no interruption of supply please.



KV

(a) 110 KV K.G. Patti - Kayathar feeder

section between 110 KV Perumal patti SS

and 110 KV Mudangiar SS. (b) 110 KV

Suruliyar - Kayathar feeder section between

110 KV Sangarankoil SS and Suruliyar PH

(a) For replacement of flash over disc at Loc. No. 6,

7 & 21. (b) Tree cutting works.

(a) During the LC Period 110 KV Perumal Patti SS will be radially fed from 110 KV

Kayathar SS and 110 KV Mudangiar SS & Seithur SS will be under Total shut down (b)

During the LC period 110 KV Sangarankoil SS will be radially fed from 110 KV Kayathar

SS. Hence no ss will be affected.


1452 Chennai 230 KV VILLUPURAM 230 KV 230KV Acharapakkam # For monthly maintenance works Other 230KV feeders will be in service (For tightening of jumpers between Loc 210-189. Possible Sat, 29-Apr-2017 09:00 Sat, 29-Apr-2017 17:00 1 already Approved

1453 Chennai 110 KV SIRUSERI 230 KV 110 KV Western Bus & 110KV Siruseri II # Maintenance work

DURING THE PERIOD OF SHUTDOWN 1)110KV WESTERN BUS,100MVA AUTO

TRANSFORMER-II ,110KV Siruseri-II#,110KV Sholinganallur#,110KV Mambakkam# will

not be inservice. 2)The 2) Idley charged 110KV Siruseri-II#,110KV Mambakkam# will not

be inservice.3)110KV Sholinganallur # load will be transferred to 230KV KITS PARK SS.

To be discuss Sat, 29-Apr-2017 10:00 Sat, 29-Apr-2017 17:00 1Subject to CBD

concurrence

Combined with GCC

work

1454 Chennai 110 KV Kadaperi 230kv 110 kv korattur-II Feeder FOR QUARTERLY MAINTENANCE WORK 1.110 kv Korattur-II # Will be radial from korattur ss end Possible Sat, 29-Apr-2017 09:00 Sat, 29-Apr-2017 12:00 1Subject to CBD

concurrenceApproved

1455 Erode 230 KV KUNDAH PH3 230KV KPH3 to Karamadai Feeder

230KV KPH3 to Karamadai Feeder Tower No:73 to


work.

Bus and line both end open condition earth switch closed condition. possible Sat, 29-Apr-2017 9:00 Sat, 29-Apr-2017 17:00 1subject to the load


1456 Chennai 230 KV KITS 230 KV 100MVA Auto transformer III For monthly maintenance works

During the above shutdown period 100MVA Auto transformer I and 80MVA auto

transformer -II will be in service feeding the entire SS loads except 110KV Veerapuram #

which will be in back charged condition from 230KV Veerapuram SS

Possible Sat, 29-Apr-2017 10:00 Sat, 29-Apr-2017 17:00 1Subject to CBD

concurrenceApproved

1457 Madurai 110 KV KODAIYAR PH2 110KV bus LC LBB commissioning work P.H-I & II machine will be shut down.No SS will be affected. POSISBLE Sun, 30-Apr-2017 9:00 Sun, 30-Apr-2017 17:00 1Programmed on

sundayApproved

1458 Chennai 230 KV KORATTUR 230 KV 100MVA Auto Transformer - I general Maintenance work 100MVA Auto Transformer - II & III

Possible with

CBD

concurrence

Sun, 30-Apr-2017 09:00 Sun, 30-Apr-2017 17:00 1Subject to load

conditionApproved

1459 Chennai 230 KV KORATTUR 230 KV 230 KV Athipet- Mosur feeder Jumper Tightness at Various location All other feeder will be in services Possible Sun, 30-Apr-2017 08:00 Sun, 30-Apr-2017 17:00 1 0 Approved


KV110KV SVC - Vallam vadakal # entire for monthly maintenance work During the LC period the 110KV SVC - Vallam vadakal # will be out of service To be discuss Sun, 30-Apr-2017 09:00 Sun, 30-Apr-2017 17:00 1 0 To be discuss

1461 Chennai 230 KV KILPAUK 230 KV 100MVA Auto Transformer I Routine Maintenance work

During the period of shutdown1) 100 MVA Auto Transformer II will be inservice2) 100KV

AnnaNagar feeder loads to be transferred to 230KV Korattur SS feeding3) 110KV Cooks

Road feeder tie to be opened at kilpauk SS end & 110KV Cooks Road SS will be radially

fed by BBGTPS

Possible with

CBD

concurrence

Sun, 30-Apr-2017 09:00 Sun, 30-Apr-2017 16:00 1 0 Approved

1462 Madurai 110 KV KAYATHAR 230 KV110 KV Kayathar - Kodikurichy # breaker with

CT onlyFor Monthly maintenance work During the LC period other end also avails LC. Hence, No ss affected. POSSIBLE Sun, 30-Apr-2017 9:00 Sun, 30-Apr-2017 17:00 1 sub to wind gen

Approved subject to

wind Generation

1463 ErodeGENERATI

NG

STATIONS

KUNDAH PH2

UNIT-V GENERATTOR SF6 BREAKER,


ACCESSIORIES

FOR MONTHLY MAINTENANCE WORK SF6 BREAKER OFF IN CONDITION TOP AND BOTTOM BUS OPEN IN CONDITION 0 Sun, 30-Apr-2017 9:00 Sun, 30-Apr-2017 17:00 1 SLDC/Erode Approved

1464 Erode 110 KV KUNDAH PH3 110KV PH2 to Thudiyalur Feeder

110KV PH2 to Thudiyalur Feeder Tower No:34 to 51.

Pre monsoon inspection work and maintenance

work.

Bus and line both end open condition earth switch closed condition. possible Sun, 30-Apr-2017 9:00 Sun, 30-Apr-2017 17:00 1subject to the load


1465 Chennai 230 KV THARAMANI 230 KV 100 MVA Auto Tr. 1,2 & 3 ( one by one) Qtrly. Mtce. work1) Auto Tr.-1 LC - Auto 2&3 will be in service 2) Auto Tr.-2 LC - Auto 1&3 will be in

service 3) Auto Tr.-3 LC - Auto 1&2 will be in service

Possible with

CBD

concurrence

Sun, 30-Apr-2017 09:00 Sun, 30-Apr-2017 17:00 1Subject to load

conditionApproved

tamil nadu transmission corporation limited …

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