Tamil Nadu Transmission Corporation Limited

Minutes of the 3rd

Meeting of Tamil Nadu State Level Operation Coordination Committee to be held on 30th & 31st March 2017

1. Confirmation of the Minutes of the 2nd TNS_OCC Meeting of

TANTRANSCO held on 27th February 2017 through video conference at Sub-LDC of Chennai, Madurai & Erode. The minutes of the 2nd TNS_OCC meeting were confirmed

2. State Sector Transmission Lines and Elements: Outage proposals for the month of April 2017 in respect of all the Operations Circles, General Construction Circles and Generating Stations were approved and uploaded in TNEBLDC website (http://tnebldc.org/FinalApril2017.pdf) and email forwarded to all concerned officials. All the Operations Circles, General Construction Circles and Generating Stations are to submit the Shutdown proposals for the May month by 22nd of April 2017. As per the outage procedure, the LC program details for the period from 1st May 2017 – 31st May 2017 shall be prepared and uploaded through website http://tnebldc.org in the “Future LC menu” without fail and the same may be discussed in the meeting. Any planned LC for construction works and routine maintenance works will not be permitted during the course of the month if it is not taken up for discussion in forthcoming TNS_OCC meeting

3. Vardah Cyclone: Experience learnt The Vardha cyclone which struck Chennai on 12.12.2016 and its impact on the grid and Communications network failure. SRPC/SRLDC requested to provide the SAT Phone at the following locations is proposed in Stage-I, All SLDC’s, Hydro Stations like Kundah

Thermal Stations in Coastal area like Vallur, NCTPS & NTPL

EE/SLDC/Erode informed that, the Satellite communication network connection given by,

i) Iridium

ii) Inmarsat

iii) Thuraya

iv) Global Star

INMARSAT terminals are only permitted in India. Tata

communications Ltd – (TCL) provide Inmarsat services. NOC for use of

Inmarsat terminals to be obtained from CS cell, Department of

Telecommunications,Room.No:1204, Sanchar Bhavan, 20 - Ashoka

Road, New Delhi – 110001

NOC application format:

Name of the party

Address

Place of use of Inmarsat terminals

Period of use of Inmarsat terminals.

Purpose for which use of Inmarsat terminals will be used.

Type of terminal for which NOC is required.

No.of terminals for which NOC required. 4. Diesel Generator Capacity

As per the Protection audit remarks by SRLDC, the DG Capacity details are enclosed in the annexure-I. The Superintending Engineer/Operation/Trichy (i/c) reported that, the existing 25 KVA DG Set has been proposed to be enhanced to 75 KVA for 10 Nos 230 KV Substations and for 1 No new provision of 75 KVA DG Set for Nemmeli Thippiakudy 230 KV SS (commissioned on 26.09.2012) and awaiting for allotment. The rest of the Superintending/Operation circles are yet to be furnish the details in the forthcoming TNS_OCC meeting

5. Black Start Restoration Procedure: As per the SRPC/SRLDC instruction, Black Start Restoration Procedure is in order and periodically carried out the mock exercise.

6. Monitoring of Scheme funded from PSDF: As per the OCC meeting instruction from NLDC/SRPC, the action taken report of the PSDF details are enclosed in the annexure- II

7. Preparation of phasing Plan for implementation of new Environmental Norms for Thermal Plants, issued by MOEF &CC: The Superintending Engineer/Betterment submitted the report for action taken report of the implementation of Environmental norms for Thermal Power Plants

8. Insulator Replacement works: The Superintending Engineer/Operation/Korattur informed that, proposals for replacement of porcelain insulators to 400 kV Polymer insulators in the entire stretch of 400kV Vallur – NCTPS-I&II feeders submitted. On approval the work will be carried out and completed soon.

9. Scheduling on LVRT & other Protection requirements & scheduling of Solar Parks at Kamudhi Solar Park : The NCES wing has to be take action and update the status in forthcoming 4th TNSOCC Meeting

10.

Patrolling / Maintenance of Critical lines and Substations : The following lines are critical lines in Coastal areas and inter-regional lines are, 230 kV Udumalpet – Idukki feeder - completed on 08.03.2017

EE/SLDC/Erode reported that, 230 KV Udumalpet – Idukki # line patrolling and maintenance carried out as on 08.03.2017 400 kV NCTPS – Vallur feeder 1 & 2 Alamathy 400/230-110 kV SS

The Superintending Engineer/Operation/Korattur reported that, the maintenance works scheduled and carried out for the month of March-17 in the 400KV NCTPS-Vallur-I & II feeder identified as critical transmission line and 400KV Alamathy SS is identified as critical substation, is furnished herewith.

SL.

NO

Name of the

SS/Lines

Patrolling Scheduled in

March-17

Carried out in

March-17

1. 400KV

Alamathy SS

Maintenance 03.03.17-400 KV

Thiruvalam-II#-

Annual Relay Test

Carried out

24.03.17-400 KV

SVC-I #-

Maintenance work

Not carried out.

LC not approved

by LDC.

2. 400KV Vallur-

NCTPS-I & II

Maintenance Hotline washing of

insulators to clear

the dust formation

Work completed.

11. PSS Tuning of Generators: TANGEDCO: Hydro/Thermal/IPP It provides a contribution by damping generator rotor angle swings, which are in the frequency range 1-3 HZ. It provides modulation of field voltage that damps out the power and speed oscillations through normal AVR control.

Present Status:

Sl.No PH/ Unit 1 2 3 4 5

1 Kadamparai ON ON ON ON

2 MTPS- 1 ON ON ON ON

3 MTPS- II OFF

4 NCTPS - I ON ON ON

5 NCTPS-II OFF

6 TTPS OFF ON ON ON ON

7 TAQA OFF

12. URTDSM:

The requirement of Auxiliary Power Supply System (APS) as per revised BOQ (Excluding input ACDB and one Battery bank of the proposed two battery banks). The Protection and communication wing has to take action and update the status in forthcoming 4th TNSOCC Meeting

13. Study/way forward for Renewable Integration in SR: The high wind and solar generation period, SLDC has to take action for reduce the generation in convention and Central Generating Share and utilise the Non-convention power in resourcefully.

14. Status of Operationalization of ICT at Madurai, Trichy and Pugalur: The Superintending Engineer/Operation/Madurai informed that, the provision of one No.500 MVA additional ICT at Checkanoorani 400/230 kV SS, in PGCIL end 400 kV HV side was commissioned on 29.12.2016 and LV side, 230 kV Bay work is under progress and completed on 30.06.2017.

The Superintending Engineer/Operation/Trichy (i/c) informed that, the provision of 1 No. 500 MVA additional ICT at 400 kV Alundur (PGCIL). At Alundur 230 kV SS, Bay shifting works civil works (Plinth, Structure works) under progress and provision of one No.500 MVA additional ICT at Pugalur PGCIL SS was commissioned on 29.03.2017 at 23:57 hrs.

15. Preparedness for Load change Over during Morning and Evening for TN Systems: Solar and wind ramp up/down forecasting may be obtained from respective promoters for maintaining the schedule deviation with in IEGC.

16. Status of GT Tap Position: Stations: MTPS III – Unit 1 – Provision of Bus Reactor – Under process by Transmission wing and update the status in forthcoming 4th TNS_OCC meeting. EE/SLDC/Erode submitted the report and the details are enclosed in the annexure - III and rest of the other generating stations/substations details are to be furnished at the earliest.

17. MVAR Interchange/MVAR capability testing: EE/SLDC/Erode submitted the report and the details are enclosed in the annexure-IV and rest of the other generating stations details are to be furnished at the earliest.

18. Status review of Bus/Line Reactors, Line Reactors and STATCOM: Stations : MTPS III – Unit 1 – Provision of Bus Reactor Sub Stations : Kayathar, Alamathy. The Superintending Engineer / Operation / Korattur reported, that, Administrative approval and technical sanction obtained for provision of bus reactor at 400KV Alamathy SS. GCC wing has been addressed to take up the work vide Lr.No.SE/O/N/CNI/EA/AE/MM/F.AMY SS/D.NO.368/17DT 06.03.17. Procurement under process and yet to be commissioned by Transmission wing and update the status in forthcoming 4th TNS_OCC meeting.

19 Reactive Power Planning: The status update on capacitor installation is given below, 4 x 2.4 MVAR - 11 kV 35 x 2.4 MVAR - 11 kV 16 x 2.4 MVAR - 22 kV 51 x 2.4 MVAR - 22 kV 13 x 24 MAVR - 110 kV

The above mentioned Capacitor bank are procurement under process by Transmission wing Transmission wing and update the status in forthcoming 4th TNS_OCC meeting.

20. Network Protection /Security issues: (i) SCADA Mapping of feeders of AUFR & df/dt schemes:- As per the CERC vide order dated 27.11.2015 on Petition No.60/MP/2014, SRPC vide letter dated 29.01.2016 had submitted the status report duly certified by SRLDC and SRPC w.r.t implementation of SCADA mapping. At Present SCADA Mapped 92 % completed and balance 8% mapping details to be update the present status.

It is under process and yet to be complete the mapping of AUFR & df/dt schemes by Protection and Communication wing. (ii) SPS Operations. During March 2017, SPS operation report is enclosed with the annexure-V.

21. LVRT Implementation: CE/NCES furnished the quarterly report for the period October 2016 to December 2016 on LVRT status in respect of Tirunelveli and Udumalpet areas in the prescribed format and is enclosed vide annexure and next quarterly report for the period from January 2017 to March 2017 is yet to be furnished.

22. RGMO Implementation/ Extension of RGMO status point to SLDC: In the RGMO meeting at SRPC, CE/MTS submitted the present status are detailed below,

Sl. No

Name of the Stations

Units Remarks

1 MTPS Stg 1 & 2 1 Response is poor for all incidents except one incident

2 MTPS Stg 1 & 2 2,3 & 4 Response is satisfactory during three incidents

3 MTPS Stg 3 1 No response is observed for all the incidents

4 NCTPS Stg 1 1 & 2 Response is poor for all the incidents

5 NCTPS Stg 1 3 Satisfactory response for two incidents and partial response for two incidents

6 NCTPS Stg 3 1 & 2 Response is satisfactory for all the incidents except two incidents

7 TTPS 1 & 2 Response is poor for all the incidents

8 TTPS 3 & 5 Partial response is observed for few incidents

23. TRANSMISSION NETWORK ISSUES AND SYSTEM OPERATION ISSUES: The Superintending Engineer/Operation/Trichy (i/c) reported that, at ALUNDUR 230 KVSS : -

The 230 KV Twin Bus A & B with moose conductor in 230 KV Alundur Sub Station the 400 KV PGCIL /Trichy the installation of 500 MVA 3 rd ICT Work under progress. Also the Bay Shifting and allied work at Alundur SS under Progress.

There is a possibility of existing ICT I & II with Capacity of 315 MVA may be enhanced to 500 MVA at PGCIL Also 3rd Auto with

100 MVA capacity prepared and submitted at 230 KV SS Alundur.

For strengthening the current caring Capacity and replacement of existing Twin Bus served more then it’s life period ( Is 25 Years )

it is proposed Quad Moose estimate prepared and Submitted.

The budget provision has also been made.

The Superintending Engineer/Operation/Korattur reported that,

Due to heavy wind during vardha most of the clamps has to be tightened. Preventive maintenance in EHT lines viz., tightness of bolts and nut, replacement of defective clamps, jumpers etc were carried out to certain extent by utilizing the AMC for the lines till 06.01.17. New tender for AMC of line has to be finalized through e –tender for which DSC has been obtained. Demo P.O is being placed in the NIC portal. As it takes one or two months for finalization, to carry out the above works and for attending breakdown works a temporary advance of Rs.1 lakh per month is required for each division having Lines wing (Korattur & Manali) till finalizing the tender.

An amount of Rs.50,000/ is required for carrying out preventive maintenance in major substations viz Alamathy, Korattur, Koyambedu, Manali and Tondiarpet through temporary advance.

The Superintending Engineer/Operation/Sriperumbudur reported that,

Necessary precautionary measures such as jumper tightness, weak jumper replacement in the critical EHT feeders, clamp tightness in the bus droppers etc., have been completed to manage the loads

during the summer.

Appropriate load management instructions have already been issued to the substation operators to transfer of loads when

situation arises.

The Superintending Engineer/Operation/Villupuram & Sriperumbudur presented a power point presentation and the details are enclosed with the annexure.

24 Vote of Thanks The Chief Engineer/Grid Operation/Chennai thanked the participants for their active participation in the meeting.

25 Date and Venue of the next meeting; The schedule for the next TNS_OCC Meeting is as follows, Meeting : 4th TNS_OCC Meeting Venue : To be intimated later Date: 27.04.2017 & 28.04.2017

******

ANNEXURES

Annexure – I

Diesel Generator Capacity

DG set Capacity available at PH's

Sl.

No PHs No's Capacity in KVA

1 ALIYAR PH 1 100

2 BARRAGE PH 1 2 63

3 BARRAGE PH 2 2 63

4 BARRAGE PH 3 2 63

5 BARRAGE PH 4 2 63

6 BKB-1 2 62.5

7 BKB-2 2 135

8 BKB-3 2 135

9 BB 1 2 70

10 BB 2 2 70

11 KADAMPARAI PH (SY) 2 437.5

12 KUNDAH PH 1 1 50

13 KUNDAH PH 2 Not available

14 KUNDAH PH 3 1 25

15 KUNDAH PH 4 1 110

1 56

16 KUNDAH PH 5 Not available

17 KUNDAH PH 6 1 50

18 METTUR DAM PH 1 250

19 METTUR TUNNEL PH 1 250

20 MOYAR Not available

21 MTPS 4 500

22 MTPP STAGE -3 2 1500

23 PUSHEP (PH) 2 500

24 PYKARA Not available

25 SHARKARPATHY PH 1 100

26 SHOLAYAR PH 1 1 30

27 SHOLAYAR PH 2 1 100

The rest of the other generating stations are requested to furnish the details

at the earliest.

Annexure – I

DG set Capacity at Sub-stations

SL.NO NAME OF THE 230 KV SS

DG SET

AVAILABILITY

YES/NO

DG SET

CAPACITY IN

KVA

1 THUDIYALUR YES 25

2 ARASUR YES 75

3 OTHAKALMANDAPAM NO

4 PONNAPURAM YES 25

5 PALLADAM YES 25

6 MYVADI YES 50

7 UDUMALPET YES 25

8 ALIYAR NO

9 COIMBATORE NO

10 KARAMADAI ( SY) YES 75*2

11 ANIKADAVU YES 25

12 SADAYAPALAYAM YES 25

13 SALEM 400 YES 50

14 SALEM YES 63

15 INGUR YES 25

16 GOBI YES 25

17 METTUR YES 25

18 UNJANAI YES 25

19 PUDANSANDAI YES 25

20 DEVIYAKURUCHI YES 25

21 PALLAKAPALAYAM YES 82.5

22 ANTHIYUR YES 82.5

23 SINGARAPET YES 25

24 HOSUR YES 25

25 VINNAMANGALAM YES 25

26 KARIMANGALAM YES 25

27 SINGAPURAM YES 83.5

28 GURUPARAPALLI YES 82.5

29 THINGALUR YES 82.5

30 PALAVADI YES 100

Annexure – I

DG set Capacity at Sub-stations

Sl

No

Name of 230KV SS Available

capacity in MVA

Remarks

1 Trichy 230 KV SS 25 KVA

To be enhanced from 25

KVA to 75 KVA under

PSDF fund scheme. All

estimates are sanctioned &

Indent given to

CE/Transmission/Chennai.

2 Samayapuram 230 KV SS 25 KVA

3 Pugalur 230 KV SS 25 KVA

4 Perambalur 230 KV SS 25 KVA

5 Thanjavur 230 KV SS 25 KVA

6 Thiruvarur 230 KV SS 25 KVA

7 Kadalangudy 230 KV SS 25 KVA

8 Alundhur 230KV SS 25 KVA

9 Eachangadu 230KV SS 25 KVA

10 Pudukottai 230KV SS 25 KVA

11 Nemmeli Thippiakudy 230

KV SS

Not available 75KVA DG set to be

provided. To meet out

monsoon, 30KVA DG set

on hire basis for 60 days

from 05.11.2016 to

03.01.2017 has been

provided.

The rest of the other substations are requested to furnish the diesel

generators details at the earliest.

Annexure – I

DG set Capacity at Sub-stations

Sl.

No.

Name of the Substation Availability of

DG Set

Healthiness of

the DG set

Requirement of

DG set

Whether

covered under

R & M

1). 400KV Alamathy SS 82.5 KVA Healthy 2X125KVA Not included

in DPR

2). 230KV Korattur SS 75KVA Healthy 2X250KVA Not included

in DPR 25KVA Healthy

3). 230KV Koyambedu SS 25KVA Healthy 125KVA 12 Lakhs

included in the

DPR

4). 230KV Koyambedu GIS

SS

2X25KVA Healthy 2X75KVA Not included

in DPR

5). 230KV Thiruverkadu SS 75KVA Healthy 75KVA Not included

in DPR

6). 230KV Kilpauk SS 25KVA Healthy 125KVA Not included

in DPR

7). 230KV Tondiarpet SS 25KVA Healthy 125KVA 12 Lakhs

included in the

DPR

8) 230KV Gummidipoondi

SS

75KVA Healthy 125KVA 14 Lakhs

included in the

DPR

9) 230KV Athipattu SS 25KVA(Divert

ed from

Mylapore SS)

Healthy. Could

not be used for

continuous

running. To be

replaced by

new one.

75KVA Not included

in DPR

10) 230KV Vysarpadi SS 75KVA Healthy Nil NIL

11) 400KV Thervoikandigai

SS

82.5 KVA Healthy Nil NIL

12) 400KV Manali GIS SS 2X75KVA Healthy Nil NIL

Annexure - II TANTRANSCO - POWER SYSTEM DEVELOPMENT FUND

Date:-23/01/2017

Details of the scheme approved for PSDF funding

All figurs Rs in Lakhs up to two digit decimal

AA Basic details of the Scheme

Name of the scheme Renovation and Upgradation of Protection & Control systems of TANTRANSCO Grid Substations by availing PSDF grant.

Estimated cost accepted Rs.13828.00 Lakhs

Grant approved Rs.12445.00 Lakhs (90% of Estimated cost accepted)

Date of sanction 04.08.2015

Completion schedule 31.12.2018

Date of signing of agreement 29.01.2016

BB Requisition of funds ( First installment and second installment) a First installment (10% after signing of agreement)

Requisition date Amount Disbursement date Amount

(Rs in crs.)

24.10.2016 Rs.1244.50 Lakhs 30.11.2016 Rs.1244.50 Lakhs

b Second installment (20%) after award of contract

Sr.no./ Tranche

no

LOA details (Total No of Contracts) Requisition

date Amount

Award value accepted by NLDC

Disbursement date

Amount

Award date Award value

1

2

3

4

CC Details of awarded contracts

a Contracts awarded

Sr.No. Award date Amount

(Rs. in Lakhs) BOQ item nos.

1 29.07.2016 181.38

(i) Carrier Set with Protection Coupler - 62 Nos.

(ii) Standalone Protection Coupler - 7 Nos.

2 29.07.2016 110.08 Carrier set with Protection Coupler - 40 Nos.

3 03.09.2016 64.19

(i) Wave Trap - 20 Sets. (BoQ item nos.:3)

(ii) Coupling Device - 20 Sets.

4 26.10.2016 67.67

(i) Numerical Distance Protection Relay - 42 Nos.

(ii) Numerical Transformer Differential Protection Relay-19 Nos.

5 03.11.2016 106.21

(i) Numerical Distance Protection Relay - 64 Nos.

(ii) Numerical Transformer Differential Protection Relay-29 Nos.

6 10.11.2016 365.16 Numerical 230kV Bus Bar Protection Relay Panels - 37 Nos. (BoQ item nos.:2)

7 10.11.2016 727.49 C&R Panels and SAS for R&M Sub stations (BoQ item nos.: 17)

8 09.12.2016 663.00 230kV CVTs - 350 Nos.

9 09.12.2016 428.72 230kV CVTs - 233 Nos.

Total 2713.90

b Contract awards under process

Sr.No. Itme date BOQ item nos.

1

Tender documents ready

2 NIT floated 04.12.2016 Battery Chargers for Communication

3 Price Bid opened 11.01.2017 Carrier set with protection Coupler - 108 Nos.

4 Technical Bid opened 21.10.2016 230kV SF6 Breaker - 93 Nos.

5 Price Bid opened 25.11.2016 230kV CT - 309 Nos.

6 Technical Bid opened 16.09.2016 230kV PT - 9 Nos.

7 Price Bid opened 02.12.2016 230kV LA - 752 Sets

8 Price Bid opened 08.11.2016 230kV Isolator - 120 Nos.

9 2nd Price negotiation 19.01.2017 110kV SF6 Breaker - 6 Nos.

10 Price Bid opened 09.01.2017 110kV CT - 66 Nos.

11 Price Bid opened 05.12.2016 110kV Isolator - 61 Nos.

12 Price Bid opened 09.01.2017 110kV PT - 1 Set.

13 Price Bid opened 02.12.2016 110kV LA - 42 Nos.

14 Tender opened 04.08.2016 DR, EL & GPS - 88 Nos.

c Change in scope ( Change upto 10% allowed in the approved BOQ. The sanctioned cost remains same)

1 Quantity variation

% of total estimated cost

2 Addition of new items

% of total estimated cost

3 Approval of the Management

d Likely date for award of the complete scope covered under the DPR

31.12.2017

e Reasons , in case of delay from the scheduled completion given in the DPR

DD

Utilization of funds

Utilization certificate to be furnished for utilized portion (As per the terms and conditions of the sanction order issued by MOP, the grant shall be refunded back to PSDF in case of non-utilization of the grant within one year of the release of the installment)

EE Third installment ( 60%) Status

Documents required for release of third installment

a Likely Statement of Expenditures (SOE) for the works to be taken up/ Statement of Expenditure in respect of the completed work

b Inspection report and certificates for completed portion of the scheme

c Project status report including the details of physical and financial timelines

d Utilization Certificate for the utilized portion of the Funds

e Proof of expenditure/Auditor’s certificate for expenditure incurred corresponding to the scheme

Requisition/Disbursement Status

Sr.no./ Tranche no

Requisition date Amount Disbursement date Amount

1

2

3

4

5

FF Other Documents

A tentative schedule for requirement of funds may be provided on quarterly basis for preparation of the budget estimates for the year 2017-18. - Likely Status of Expenditure Format enclosed.

Reasons for deviations from the timelines given in the DPR may be provided.

Inspection reports in respect of the works completed so far may be furnished

In case of change of authorized signatory, the revised details may be communicated.

Annexure-II

Reporting format to the PSDF Project Monitoring Group

1 Name of the scheme

Establishment of Technical and IT infrastructure for implementation

of intrastate ABT in Tamilnadu

1.1 Name of the SS and its location

1.2 Executing agency TANTRANSCO

1.3 State/Region Tamil Nadu/Southern Regiion

2 Date of sanction order 02.02.2017

2.1 Date of agreement of Entity with state Govt/NLDC Draft Agreement has been vetted by NLDC. Agreement

is yet to be executed

2.2 Total approved cost of the scheme Rs 13.31 Crores

2.3 Approved grant by monitoring committee(Rs in lakhs)

Rs.11.98 Crores (90% of Estimated cost accepted)

2.4 Date of Requisition by the entity

2.4 a) date and reference of LOA

2.4 b) Amount of LOA

2.5

Date of Disbursement and

amount

2.5.1: I installment

2.5.2: II installment

2.5.3: III installment

2.6

Date of scheduled completion of

work

2.7

Date of handing over of site to entity(in case of

turnkey projects)

Report for the month of _03__MM/YY_2017____

Sr.

No. Supply description

Qty as per

LOA

Quantity

received during

the month

Cummulative

progress till date Balance Remarks

Sch Act

1 item details

Annexure – II

PSDF - REQUIREMENT OF EQUIPMENTS (Quantity & Cost)

(To be procured / work executed by Operation wing)

S.No. Description Quantity in Nos.

Cost per Qty.

(in Lakhs)

Total Cost in Lakhs

Substation Equipments / Works

1 Emulsifier for ICT (for K.R.Thoppur SS) 1 10.0 10.00

2 110kV PT (110kV/√3)/(110V/√3)/(110V/√3)/(110V/√3) (for Salem SS) 1 0.7 0.70

3 Marshalling box for switch yard (for Singarapet SS) 2 0.6 1.20

4 Fire fighting equipment 355.64

5 Air conditioning system 330.58

6 Battery & Battery Charger 235.40

7 Auxiliary supply 305.30

8 Testing Instruments (Other than Transformer Winding Analyser & Circuit Breaker Tester) 242.52

9 Lighting 291.90

10 Dismantling and shifting charges 165.00

11 Structure modification 127.00

12 Breaker / LA Erection charges 136.00

13 Panel Erection cost 1.16

14 Strengthening of Bus 36.00

15 Shifting of Existing Carrier panels to new control room (for Singarapet SS) 5.00

Total cost in Lakhs 2243.40

Annexure – II

TANTRANSCO

PSDF - REQUIREMENT OF EQUIPMENTS (Quantity)

(To be procured by Transmission wing)

S. No.

Description Quantity in Nos.

Cost per Qty. (in

Lakhs)

Total Cost

in Lakhs

230 kV

1 SF6 Circuit breaker (50kA, Control Voltage: 110V DC-50 Nos. & 220V DC-43 Nos.) 93 15 1395

2 Current Transformer (5 Core, CTR: 1600-1200-800-600-300/1A) 309 2.5 772.5

3

Potential Transformer

(230kV/√3)/(110V/√3)/(110V/√3)/(110V/√3) 9 4 36

4 Surge arrestor with structure 752 1 752

5 Disconnectors with Earth Blade 8 3.5 28

6 Disconnectors without Earth Blade 112 3.2 358.4

110 kV

7 SF6 Circuit breaker (40 kA, Control Voltage: 110V DC - 2 No. & 220V DC - 4 Nos.) 6 5.6 33.6

8 Current Transformer (5 Core, CTR: 1200-600-300-150/1A) 66 2.1 139.16

9 Surge arrestor with structure 42 0.2 8.4

10 Disconnectors with Earth Blades 26 2.2 57.2

11 Disconnectors without Earth Blades 35 2 70

Substation equipments

12 DG set (250kVA) 57 12.68 722.50

13 Power and control cable 465.29

8x2.5 sq.mm 21.5Km 1.63 35.06

20x2.5 sq.mm 43Km 3.79 163.11

4x4 sq.mm 78.69Km 1.31 103.16

8x4 sq.mm 68.37Km 2.40 164.05

14 DC panel (110 V DC: 4 Nos. & 220V DC: 4 Nos.) 8 1.2 9.6

15 AC panel 8 1.2 9.6

16 22 kV breaker (Control Voltage: 110V DC) 8 2.1 16.8

17 33 kV Current Transformer (3 Core, CTR: 600-300-150/1A) 6 0.21 1.3

Total cost in Lakhs 4875.45

Annexure – II

List of 230 KV SS of Madurai Operation Circle covered under PSDF scheme for renovation and upgradation of protection and control systems

S.No Name of the 230 KVSS Renovation / Upgradation

Amount Approved Rs in lakhs

1 ALAGARKOIL 230 KV SS 104.93

2 CHECKKANOORANI 230 kV SS 203.63

3 KARAIKUDI 230 KV SS 148.03

4 KAVANOOR 230 KV SS 117.43

5 PASUMALAI 230 KV SS 178.51

6 RENGANATHAPURAM 230 KV SS 92.71

7 SEMBATTY 230 KV SS 114.23

8 THENI 230 KV SS 115.50

9 VALUTHUR 230KVSS 70.13

TOTAL 1145.10

Rs. 1145.10 Lakhs Gross & Nett

( Rupees One Thousand One Hundred Four Five Lakhs and Ten Thousand only )

Superintending Engineer

Operation/Madurai

Annexure – II

Requirement of Equipments for all 9 Nos. of 230 KV SS in Madurai Operation Circle approved under PSDF scheme

for renovation and upgradation of protection and control systems

Sl. No.

Description Total Amount Sanctioned Rs

in Lakh Qty Remarks /Present Status

230 kV

1 Bus coupler bay equipment 180 6

Allottment to be received from Transmission wing.

2 Circuit breakers

3 Current Transformers 37.5 15

4 PTs

5 CVTs 148.4 53

6 LAS 52 52

7 Provision for GPS 18 9

8 Station Event Logger (EL) 162 9

9 Emulsifier for ICT

PLCC equipments

10 Carrier set 117.5 47 Allottment received vide P.O No 949 and 948 of CE/P&C/Chennai and materials lifted from stores.

11 Coupler 98 49

12 Wave trap 0

13 Coupling device 0

14 Bus bar protection panel 14 1 Allotment to be received.

15 Distance Relay 48 32 Relay replacement work is partially compeleted. Again Relay allottment is received.

16 Over flux 5.1 3

Allotment to be received. 17 Auto Reclosure 5 6

18 Sync. Relay 5 5

Substation Equipments

19 Fire fighting equipment 14 Nos to Psq

Fire fighting equipments are supplied and lifted by Pasumalai Opn Division.

20 Air conditioning system 34.6 2 T, 1.5 T

2 Ton AC units -20 Nos and 1.5 Ton -7 Nos are supplied and out of which 3 Nos are in defective condition. They are to be replaced by the Company and the good ones are installed at the respective Substations. For the remaining quantity, tender is to be processed.

21 DG set 132 8 Indent furnished to SE/O/Sriperumpudur.

22 Battery and Battery charger 10 6 Nos Indent furnished to SE/O/Chennai

23 Auxiliary supply 0 Requirement - NIL

24 Testing Instruments 27 30 For supply of 10 Nos of Digital Multimeter, P.O is placed. For Digital Earth resistance tester, Digital Insulation tester and Digital Clamp meter , tender is under process.

25 Power and control cable 31.5 Indent furnished to SE/O/Tiruvallam

26 Lighting 13.5

16 Watts,

72 Watts

72 watts LED lights -68 Nos are received and erected in Pasumalai, Checkanurani and Kavanoor. For the remaining quantity, Tender is to be processed. 300 Nos of 16 Watts Tubelights are received and lifted.

27 Dismantling and shifting charges

0 Requirement - NIL

28 Structure modification 0 Requirement - NIL

29 Breaker / LA Erection charges 0 Requirement - NIL

TOTAL COST 1145.1 0

Annexure-II

Reporting format to the PSDF Project Monitoring Group

1

Name of the scheme

Renovation and Upgradation of Protection & Control

systems of TANTRANSCO Grid Substations by

availing PSDF grant.

1.1 Name of the SS and its location

1.2 Executing agency Operation/North

1.3 State/Region Tamil Nadu

2 Date of sanction order 04.08.2015

2.1 Date of agreement of Entity with state Govt/NLDC

2.2 Total approved cost of the scheme Rs.439 Lakhs

2.3 Approved grant by monitoring committee(Rs in lakhs) 395.1 Lakhs(90% of Estimated cost accepted)

2.4 Date of Requisition by the entity

2.4 a) date and reference of LOA

2.4 b) Amount of LOA

2.5

Date of Disbursement and

amount

2.5.1: I installment

2.5.2: II installment

2.5.3: III installment

2.6

Date of scheduled completion of

work

2.7 Date of handing over of site to entity(in case of turnkey projects)

Report for the month of _03__MM/YY_2017____

Sr.No. Supply description Qty as per LOA

Quantity

received

during

the

month

Cummulative

progress till

date Balance Remarks

Sch Act

1 item details

AC for 230KV Kilpauk SS 1 no nil March 1 no

Supply and

erection will

be completed

during march

c Tenders to be processed

1 230KV Circuit breaker

319.9 To be procured by Transmission wing

2 230KV Current Transformer

3 DG Sets

4 LAS

5 230KV Current Transformer

6 Bus coupler bay equipment

7 Power and control cable

8 AC panel

9 Battery and Batter charger

1 Fire fighting equipement

118.83

To be procured by operation circle. Obtaining of DSC for e-tender under process

2 Lighting*

3 Airconditioning

4 Testing Instruments

5 Auxilary supply

Note: * Tender floated during 31.05.16 but no one participated and the same was lodged

Sr.No. Erection description Works as per LOA

Progress

during

the

Cummulative

progress till

date Balance

month

2 Work details

Annexure – III

TAP POSITION OF GENERATOR TRANSFORMER

Sl. No.

Name of the Station

GT

VOLT Tap position/ Unit Remarks

I II III IV V

I. HYDRO GENERATION

1 Aliyar 110 2

2 Amaravathy - - - - - -

3 Bhavanisagar Micro PH 111 16 16

4 Kadamparai PH 230 8 8 8 8 -

5 Kundah PH I 108 3 3 3

6 Kundah PH II 224 3 3 3 3 3

7 Kundah PH III 229 3 3 3

8 Kundah PH IV 228 3 3

9 Kundah PH V 110 2 2 - - -

10 Kundah PH VI 110 4 - - - -

11 LOMPH1 110 4 4

12 LOMPH2 109 4 4 - - -

13 LOMPH3 - 4 4 - - -

14 LOMPH4 107 4 4 - - -

15 BKB 1

16 BKB 2

17 BKB 3

18 Lower Aliyar 21.5 3 3

19

Lower Bhavani Right Bank

canal

11.2

KV

20 Maravakandi - - - - - -

21 Mettur Dam 116 2 2 2 2

22 Mettur Tunnel PH 229.9 5 5 5 5 -

23 Moyar PH 106 3 3 3

24 Poonachi 22KV 6

25 Pykara Micro Hydel PH 22KV 13

26 Pykara PH 104 5 (Units 1 to 7)

27 PUSHEP 230 3 - - - -

28 Sathanur Dam 35KV 13

29 Sarkarpathy PH 113 3 - - - -

30 Sholayar PH I - 4 4 - - -

31 Sholayar PH II - 3 - - - -

32 Thirumoorthy Dam - - - - - -

II. THERMAL POWER GENERATION

1 MTPS 1 224 8 8 8 5

2 MTPS 2 409 6

Annexure – IV

MVAR Interchange/MVAR capability testing

Sl .No PHs

P

max

Q max AVR Auto/ Manual

1 2 3 4 5 6 7

1 ALIYAR PH 60 45 M

2 BARRAGE PH 1 30 14.4 A A

3 BARRAGE PH 2 30 14.4 A A

4 BARRAGE PH 3 30 14.4 A A

5 BARRAGE PH 4 30 14.4 A A

6 BKB-1 30 14.53 A A

7 BKB-2 30 14.53 A A

8 BKB-3 30 14.53 A A

9 BB 1 10

10 BB 2 10

11 KADAMPARAI 400 A A A A

12 KUNDAH PH 1 60 39.6 M M M

13 KUNDAH PH 2 175 132 M M M M M

14 KUNDAH PH 3 180 144 M M M

15 KUNDAH PH 4 100 64 A M

16 KUNDAH PH 5 40 M M

17 KUNDAH PH 6 30 A

18 METTUR DAM PH 50 M M M M

19 METTUR TUNNEL PH 200 96 M M M M

20 MOYAR 36 27.6 M M M

21 MTPS 840 520 A A A A

22 MTPP STAGE -3 600 340 A

23 PUSHEP (PH) 150 133.2 A A A

24 PYKARA 60 52.64 M M M M M M

25 SHARKARPATHY PH 30 A

26 SHOLAYAR PH 1 70 M M

27 SHOLAYAR PH 2 25 M

Annexure – V

2) SPS operation during March 2017:

Hosur 400 KV bus under voltage tripping at 11.55 hrs on 28.03.2017

Note: Trip links removed at 12.45 hrs on 28.03.17

HVDC POLE 2 BLOCKED The following feeders were tripped at 21.02 hrs on 13.3.2017

TRIP SIGNAL - I

SL.

NO.

NAME OF THE

SUBSTATION NAME OF THE FEEDER Trip time

Normali

sing

Time

Load

in MW

1 VINNAMANGA

LAM

110KV V'MGLM -VADAGATHIPATTI # 21.02 21.09 14

110KV V'MGLM - THIRUPATHUR #

(VANIAMPADY, ALANGAYAM) 21.02

Trip

links

remov

ed

110KV V'MGLM - AMBUR # 21.02

2 HOSUR

110KV HOSUR - KEMBATTI I # 21.02 21.08 25

110KV HOSUR - BAGALUR # 21.02 21.08 30

110KV HOSUR GC II (33KV) 21.02 21.07 21

110KV HOSUR - ZUZUVADI # 21.02 21.09 67

3 UNJANAI 110KV UNJANAI - ELANAGAR # 21.02 f/f psi

110KV UNJANAI- PARUTHIPALLI# 21.02 21.07 9

4 PUDANSANDAI

110 KV PUDANSANDAI - PSI 110 # 21.02 21.09 9

110 KV PUDANSANDAI - K N PATTY # 21.02 21.10 8

110 KV PUDANSANDAI - VALAYAPATTAI # 21.02 21.10 36

5 DEVIAKURICHI 110KV DEVIAKURICHI - THAMMAMPATTI # 21.02 21.07 19

110KV DEVIAKURICHI - THALAIVASAL # 21.02 21.09 14

6 GURUPARAPAL

LI

110KV Gurubarapalli - Hosur # 21.02 21.08 47

Total 299

SL. NO. NAME OF THE

SUBSTATION NAME OF THE FEEDER Trip time

Normali

sing

Time

Load

in MW

1 HOSUR

110 KV Hosur – Zuzuvadi # 11.55 12.06 88

110 KV Hosur – Kempatty # 11.55 12.06 72

TOTAL 160

Additional Agenda Particulars:

1) Precautionary action to meet the ensuing summer demand.

Premonsoon inspection of all EHT lines are being carried out

thoroughly and also rectifications are being carried out then

and there.

All the substation equipments are inspected thoroughly,

loose jumpers and clamps are tightened and lightning

arrester connections were checked up.

Adequate stock of materials, spares, discs are available at

substation to attend breakdown works.

Tools & Plants are kept intact.

Hire Vehicle is available and is in good condition .

Adequate man power are available to attend breakdown

work, if any.

Station transformers supply kept intact (both regular).

All communication mediums are in good working condition.

AEE/ Maintenance/ 230 KV SS, AE/Maintenance/230 KV SS, AE/ Lines

and all AEEs/Shift are suitably instructed to take precautionary measures and

manage the power situation without any complaints.

At Thiruvarur 230 KV SS, out of 4 Nos. 230KV Sources

(Thanajvur, PPN, Nemmeli Thippiyakudy & Kadalangudy

feeders) 2 Nos. Kadalangudy & PPN are tie opened

condition, requested to be closed during summer to avoid

overloading of feeders

At Eachangadu 230 KV SS, Enhancement of Exg 230/110

KV Auto Tr. from 2x50 MVA to 2x80 MVA has been

sanctioned vide (Per).CH.TANTRANSCO Proceedings

No.173 dt 23.11.15 and One No Transformer allotted from

Kadalangudi 230 KV SS vide Memo No:

CE/TR/SE/TRII/ET/A3/F. Allotment /D.No. 005 /’16, dt.

08.01.2016 .Transportation of transformer and

commissioning pending with GCC.

At Kadalangudy 230 KV SS, The 110 KV Kumbakonam

Load to be transferred to 230 KV Thiruvarur SS .Since the

existing (2X100MVA) each Auto transformer fully Loaded

up to 520 Amps ( LV side) .

At Kadalangudy 230 KV SS, Erection of 1X24 MVAR

Capacitor Bank : Administrative approval was accorded for

erection of 1X24 MVAR Capacitor Bank vide (Per) CMD

Tangedco proceddings No 274 dt 02.07.14.The work was

not yet taken up .Top priority may please be arranged to

complete the work before summer season to avoid low

voltage complaint and VAR compensation.

2) Follow up action on the commissioning activities of ongoing new EHT

SS/ Lines.

ALUNDUR 230 KV SS:

GCC/Trichy speeding up the erectionand commissioning activities to

230KV Mondipatty SS & Provision of 3rd

ICT 500MVA at PGCIL Trichy,

work under progress and the 230 KV Bay extension works to

accommodate LVIII to Alundur SS And 230 KV Alundur –Thanjavur

feeder bay230 KV Bus Coupkler bay shiting work taken up , Plinth

erection Works completed.

KADALANGUDY 230 KV SS:

a. Proposals for which works already included in the T&D Programme

and works in progress:

Sl.

No.

Description of

works

Necessity of the work Sanction particulars Remarks

1 Erection of DC line

on DC tower with

panther to

Jayamkondam

110 KV SS.

A) To provide LILO

arrangement to

Jayamkondam 110 KV

SS from existing “T”

Off arrangement

(Per) CH

TANTRANSCO

Proceedings No. 197

Dt. 20/11/2013

Work is under

progress

2.

Strengthening of

existing 110 KV

Kadalangudy –

Aduthurai – Neyveli

feeder from

Loc. Nos 189 to

389.

B) The existing RSJ

poles with Leopard

conductor are replaced

by SC line on DC

towers with Panther

conductor

Per) CH TANTRANSCO

Proceedings No. 197

Dt. 20/11/2013

Memo No.

CE/D/TY/TECH

/AEE/GL /SDM/F.Estt

/pro.127/ C.2310/13,

Dt. 10/12/2013.

Work is under

progress

3

Erection of 110KV

DC Line on DC

tower for a length of

31 Kms to make

LILO of KGTPS –

Palaiyur feeder

Resolving power

evacuation problem at

KGTPS

BP.No .60/10.04.2014

Work is under

progress

b. Sanctioned proposals and works pending with GCC:

Sl.

No.

Description of

works

Necessity of the

work

Sanction particulars Remarks

1 Bifurcation of

existing 110 KV

Kadalangudy –

Aduthurai –

Thirupanandal-

Neyveli feeder into

two.

To avoid

unnecessary

trippings of

feeders.

BP No. 404 (Tech Br.),

Dt. 12/11/2009 &

Memo no. CE/D/TRY /

TECH /AEE/GL/SDM /

F.EST/PRO.37/C.1471/

09 Dt. 18/11/2009.

TLC works

completed. But

erection of 1 no.

110 KV breaker

at Aduthurai SS

is pending

2 Insertion of DC

Tower in 230 KV

Kadalangudy to

Neively TS II

&Thiruvarur #

Very Low Sag &

Line strand cut in

Neively # at Loc

.No 33 &34

Memo no. CE/D/TRY /

TECH /AEE/GL/SDM /

F.EST/PRO.37/C. 315

/13-14 Dt. 21.12.2013.

Work is not

taken up

3 Insertion of DC

Tower in 230 KV

PPN –TVR-TJVR #

Long span &Low

Sag at Loc .No 54

& 55

Memo no. CE/D/TRY /

14.645 / C. 205 /15-16

Dt. 23.10.2015.

Work is not

taken up

THANJAVUR 230 KV SS:

110 KV Thanjavur – Mariammankoil link feeder – Estimate

sanctioned - Work is under progress

LILO arrangement in 110 KV Trichy – Punalkulam feeder

for 110 KV Thirukkattuppalli SS – Estimate sanctioned –

Work is to be taken up.

THATCHANKURICHY 230 KV SS: -

230 KV Poyyur LILO line Work is under progress and it is

programmed to Commission on or before 31st march 2017.

TRICHY 230 KV SS:

230KV LILO arrangement work under progress for 13 km for

230KV Mondipatty SS(TNPLSS)from 230kv Alundur –

Alagarkoil feeder between loc.52&53.

110KV LILO arrangement work under progress for 6km from

110KV Alundur-Sembatty feeder (between loc.270&271) and

110KV LILO arrangement work under progress for 25km from

110KV Trichy-Erode feeder (between loc.94&95)for230KV

Mondipatty SS(TNPLSS).

THIRUVARUR 230 KV SS:

Link line 110KV Thirumakottai to Voimedu partly

completed. Stringing of lines work to be carried out by

TLC.

PUDUKOTTAI 230 KV SS:

One number addl. 110 KV feeder works in 110 KV

Alangudy-EID Parry line due to over load is under execution

by GCC wing /Trichy.

PERAMBALUR 230 KV SS:

Composite estimate of changing of conductor from leopard

to panther conductor in 110KV lines of Perambalur division

sanction vide (per CH – TANTRANSCO Proceedings No:6

2/28.4.2015) for an amount of Rs: 11688.69 lakhs cross and

Rs: 6978.88lakhs Nett and the works to be taken up by

GCC/Trichy.

3) Follow up action on

a) Commissioning of 2nd 200 MVA, 400/110 KV ICT at Alamathy 400 KV SS.

b) Commissioning of 4th auto transformer at Tharamani 230 KV SS.

c) Re-commissioning of 230 KV Kalivanthapattu - S.P.Koil feeder

Not Related

4) Future plan for establishing new 400 KV and 230 KV substations and

evolving proposals.

New Mondipatty 230 KV SS (TNPL) :

Erection works is under progress by GCC/Trichy wing. The

probable date of commissioning on or before March-2017.

Jambunathapuram 230 KV SS : -

Works nearing completion under turnkey contract. The

probable date of commissioning - 31.3.2017.

Poyyur 230 KV SS:-

Line works & equipment testing under progress. Erection work

completed. Station source availed. Tentative commissioning -

31.03.2017.

5) Analysis of failure of Substation equipments during 2016.

Enclosed in Annexure-IV

6) Analysis of breakdown on feeders during 2016. (From 01/2016 to 12/2016)

Sl.No

No of Fault Trippings No of Breakdown

230 KV 110 KV 230 KV 110 KV

1. 35 255 18 32

Pre-monsoon & normal line patrol were carried out in 230KV & 110 KV

feeders in phased manner & Special line patrol has been carried out then

and there in the frequent falut tripping/breakdown feeders.

7) Healthiness of capacitor Banks (in service/failed condition).

Enclosed in Annexure-IV

8) EHT application and feasible report pending. -----

9) AMC of 400 KV, 230 KV lines.

Annual Maintenance contracts for SS Maintenance

The Proposal has been submitted to CE/System Operation/Chennai to

carry out Annual Maintenance contract by providing assistance in the

shift/Maintenance activities& maintenance works in the following10 Nos 230

KV Substations in Trichy operation Circle at an estimate cost of Rs.251.1 Lakhs

Gross and Nett for the year 2016-17.

Sl.No Name of the 230 KV SS Estimate

Amount

1. Thatchankurichy Rs.22,78,960/-

2. Alundur Rs.27,86,470/-

3. Thiruvarur Rs.28,55,100/-

4. Nemmeli Thippiakudy Rs.27,58,930/-

5. Eachangadu Rs.21,03,810/-

6. Kadalangudy Rs. 23,18,490/-

7. Pugalur Rs.24,46,290/-

8. Thanjavur Rs.28,72,550/-

9. Perambalur Rs.23,41,350/-

10 Trichy Rs.22,74,860/-

Total Rs.2,51,09,680/-

Annual Maintenance contracts for Line Maintenance

The Proposal has been submitted to CE/System Operation/Chennai to

carry out Annual Maintenance contract for the existing 230 KV & 110 KV

Lines for the year 2016-17 to the following 6 Nos Operation Divisions in Trichy

operation Circle at an estimate cost of Rs.244.2 Lakhs Gross and Nett.

Sl.No Name of the Operation

Division

Estimate Amount

1. Thiruvarur Rs.47,25,300/-

2. Nemmeli Thippiakudy Rs.37,17,725/-

3. Kadalangudy Rs.32,58,180/-

4. Pugalur Rs.38,92,000/-

5. Thanjavur Rs.33,64,590/-

6. Trichy Rs.54,61,000/-

Total Rs.2,44,19,395/-