20 doc borl nit-part-3

8/10/2019 20 Doc BORL NIT-part-3

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BHARAT OMAN REFINERIES LIMITEDBINA, MADHYA PRADESH


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30.0 Resistance of the joint shall be more than that of equivalent length of

29.0 Ironto copper connections shall be brazed type and shall be treated to

after being checked and tested, shall be painted with anticorrosive paint/compound.

bolts shall be provided for making each connection. Equipment bolted connectionContact surface shall be free from scales, paint, enamel, grease, rust or dirt.Two

28.0 Earthing connections with equipment earthing pads shall be bolted type.

prevent moisture ingression.

31.0 For surge arrester, earthing lead from surge counter to main earthmat shall

be shortest in length as far as possiable. Earthing lead for surge counter shall

not be passed through any pipe.

: 75 x 12 mm

: 75 x 12 mm

: 75 x 12 mm

: 50 x 6 mm

: 25 x 3 mm

: 50 x 6 mm

32.0 For ground connections, the conductor sizes shall be as listed

as per IS(in treated earth pit)

h. Pipe earth electrode

ground & earthing leads

ground & earthing leads

Item

in ground

outdoor cable trenches

Lighting Panels, DCDB etc.grounding

below :-

a. Main Earthing conductor to be buried

b1. EHV CB & ISO grounding-conductor above

e. L.T.Panels,Control Panels,MOM Boxes,

f. Motors

g. Earthing conductor along

c. Structures/Towers grounding-cond. above

Out door Marshalling Kiosks,Junction Boxes,

C.I. pipe

3000 mm long

Oxide Primer

Painted with Red

Galvanized

Iron Flat

Iron Flat

Galvanized

GalvanizedIron Flat

Iron Flat

Galvanized

Size Material

i. Earthing of lighting Pole

3000 mm long

G.I ROD

: 75 x 12 mmabove ground & earthing leads

b2. Other EHV equipment grounding-conductor Galvanized

Iron Flat

Galvanized Iron Flat

Galvanized

Iron Flat

the electrode.

: 2 Nos. 75 x 12 mmd. HT/LT TransformerIron Flat

Galvanized

: 75 x 12 mmd. HT/LT SWGR,ACDBIron Flat

Galvanized


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7703-71-60-A4-0800-Cover_S

heet


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1. These lighting notes and details shall be read and construed in

conjunction with the Illumination Layout and drawings.

2. Except specifically approved by site office, installation of

exposed conduits, mounting of lighting fixtures etc. shall be

taken up only after all other services such as Piping, Air

Ducting, Cable Tray/Busduct Hanger, Structural Bracings etc. in a

particular area have been installed.

3. The Contractor shall develop final conduit/cable routing based on

fixture location and other site conditions.

4. Unless otherwise shown, the mounting heights of lighting fixturesand accessories shall be generally as follows :

a) i) Low-Bay Lighting Fixtures

in general indoor Areas

of Industrial plants.

ii) Medium Bay Type Fixtures. : 3500 to less than

8000 mm from bottom

iii) High Bay Type Fixtures : 8000 mm and above

from Bottom

b) Bracket lights over door : 300 mm bottom of

Openings Fixture Above top of

c) Receptacles -

i) In control room/office : 450 mm from finished floor

ii) Elsewhere : 900 mm from finished floor

d) Local Switches : 1500 mm from finished floor

e) Lighting Panels : 1800 mm from finished floor

5. Unless otherwise noted,all lighting fixtures shall be fed from respective

lighting panels. Normal AC lighting panels will be fed from 415V AC

distribution boards (ACDB). DC Emrgency lighting distribution boards

(DCELDB) will be fed from Main DC distribution boards.

6. All outdoor lighting fixtures, unless it is fed from time switch

controlled lighting panel shall be provided with outdoor type

local switches.

3500 mm from bottom:

to finished floor

to finished floor

to finished

floor

opening

to centre

to centre

to centre

to top



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15. For cable/wire numbering, PVC sleeve with cable/wire Tag number of

with proper protection as per details shown or through duct bank.

17. When buried cables cross road/railway track, additional protection

18. Flame proof installations shall be carried out with Flame proof

19. Unless otherwise noted, the minimum size of cables, wires,

to be provided in from of hume/G.I. Pipe.

conduits, flame proof accessories and junction boxes.

conduits, junction boxes shall be decided by the bidder as listed

A) CABLES

i) From 415V AC distritbution

16. For roads/outdoor areas, main runs from street/area lighting

different colour code shall be used.

panels shall be by means of A2XWY cables, directly buried in ground

lighting panels : TBD

Boards to 415 V normal AC

suitably painted with acid/alkaly proof paints.

lighting and fan circuits.

box in the main conduit run.

conduit and junction boxes.

10. Lighting fixtures shall not be suspended directly from junction

11. Separate conduits shall be used for wiring lighting circuits of

12. A.C. and D.C. circuits shall not be run in the same conduit and

13. Receptacle circuits shall be kept separate and distinct from

14. Wires/cable shall be spliced only at junction boxes with

ring-tongue lugs or approved equal.

different lighting distribution system such as normal AC

lighting /emergency DC lighting.

junction boxes. Circuits fed from different transformers and

different batteries (D.C. Source) shall not be run through same

9. The entire metallic conduit system whether embedded or exposed,

shall be electrically continuous and thoroughly grounded.

8. All exposed conduit runs in battery room area, etc. shall be

7. Separate neutral wire shall be provided for each circuit. Wiring

throughout the installation shall be such that there is no break

in the neutral wire in the from of switch or fuse.

below :

TBD : To be decided by the bidderBHARAT OMAN REFINERIES LIMITED

BINA, MADHYA PRADESH


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Junction Box : TBD

Junction Boxes/switchboards : 1C, 10 Sq.mm AL (Stranded)

boards to Lighting Fixtures : 1C, 2.5 Sq.mm Cu.

Flood light Fixtures : 2 x 2.5 Sq.mm, 1C, Cu

Receptacles. :1C, 10 Sq.mm AL.(Stranded)

i) 4 Sq.mm CU - 2 5 7 8 } Maximum No.of Con-

ii) 2.5 Sq.mm CU 3 5 9 - - } for Conduit

board (DCELDB) : TBD

} ductors Admissible

iii) From Junction Boxes to

iv) From lighting Panels to

240V AC 5/15A, 1 Phase

CABLE SIZE CONDUIT. SIZE

20MM 25MM 32MM 40MM 50MM

C. CONDUITS

iii) From 415V normal AC street/

SWYD lighting panels to

street lighting pole

i) From lighting panels to

ii) From Junction Boxes/Switch-

ii) From 110V main DC dist.

Boards to 110V DC emergency

lighting distribution

B. WIRES

Wires shall be PVC insulated, 650V grade and of following sizes:

All conduits shall be of galvanised steel of following minimum sizes :

TBD : To be decided by the bidder



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Indian Electricity Rules, relevant IS codes of practice and safety

23. Typical details of lighting fixtures, other lighting system

codes, all as ammended upto date. In addition, other rules or

regulations as applicable to the work shall be followed. In case

of any discrepancy, the more restrictive rule shall be binding.

components and their mounting arrangement as shown herein are for

general guidance only, The type no. of some make has been refered

in the various drawings. Only to indicate desired appearance,

Junction Boxes etc. : 16 SWG G.I. Wire

CONDUIT SIZE JUNCTION BOX SIZE (MM)

etc. : 16 SWG, G.I. wire.

iii) 50 254x200x127 254x200x127 254x200x127 -

20. All lighting panels/distribution boards, junction boxes,receptacles,

Fixtures, Conduits, etc. shall be grounded in compliance with

the provision of I.E. rule and as detailed below :

i) Lighting Panels : 50 x 6 MM G.I. Flat

ii) 32 / 40 254x200x127 254x200x127 150x150x100 -

each conduit run and bonded to it every 600 MM.

21. A continuous ground conductor of 16 SWG G.I. wire shall run along

22. The electrical installation work shall met the requirements of

ing : 50 x 6 MM G.I. Flat

ii) Power Receptacles,

iii) Lighting fixtures,

iv) Street Light Poles and

D. JUNCTION BOXES

switches, conduits

Towers for Floodlight-

THROUGH

has to design the same fulfilling the requirement of the specification.

construction features and performance of the fixture.The contractor



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450

1500

1500


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DRAWN :

APPROVED:

REVIEWED:

CHECKED :

DATE

JOB NO.

SCALE



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D

21 3 4

C

D

5 6

C

B

2

A

1 3 4

B

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A



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D

21 3 4

C

D

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C

B

2

A

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B

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A



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D

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C

D

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C

B

2

A

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B

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A



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DRAWN :

APPROVED :

REVIEWED :

CHECKED :

DATE

JOB NO.

SCALE

LOUVRE

DRY FILTERSECTION

(FORACSYSTEM)


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Specificationfor 220/33 KV Substation

220/33 KV Substation ofBharat Oman Refineries Ltd.

Doc. No. : 7703-71-60-TS-001 DEVELOPMENT CONSULTANTS PVT. LTD.

B. Existing Drawings of BORL Refinery at Bina required for construction of new220/33 KV Substation in the same Refinery

Sl. No. TITLE DWG. NO.

1. OVERALL EARTHING LAYOUT 99-12-A0-0002, Rev-2

2.(PROPOSED) CABLE TRENCH LAYOUT FROM 132KV SWITCH YARD TO CPP S/S-10

11-26-A2-0150, Rev-1

3. SWITCHGEAR ROOM EQUIPMENT LAYOUT 0-381-21-00429, Rev-3

4. SWITCHGEAR ROOM FLOOR CUTOUT 1-381-21-02015, Rev-1

5. FIRE WATER LAYOUT 6743-041-16-47-0203, Rev-2

6. LAYOUT OF OWS & CRWS SYSTEM 6743-059-16-47-0202, Rev-1

7. GREAD LEVEL Scanned Doc, A4, 1Sh.

8.REPORT ON SOIL INVESTIGATION FOR 132 KV(EXISTING) SWYD OF BINA REFINARY AT BINA, MP.

05605-C-SOIL-1-INV-001,Rev-2


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BHARAT OMAN REFINERIES LIMITED

BINA, MADHYA PRADESH

220/33KV SUBSTATION PACKAGE

VOLUME IV

PROPOSAL EXHIBITS

DOCUMENT NO. : 7703-71-60-TS-001

CONSULTANT

DEVELOPMENT CONSULTANTS PRIVATE LIMITED

BLOCK-DG/4, SECTOR-II, SALT LAKE CITY, KOLKATA 700 091, INDIA


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Specification

for 220/33 KV Substation

220/33 KV Substation of

Bharat Oman Refineries Ltd.


PROPOSAL EXHIBITS

PROPOSAL EXHIBITS : PART I

PROPOSAL EXHIBITS : PART II

PROPOSAL EXHIBITS : PART III


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PROPOSAL EXHIBITS : PART I

PROPOSAL DATA

(TO BE SUBMITTED WITH TECHNO-COMMERCIALBID)

SCHEDULE- I THROUGH SCHEDULE- IV


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PROPOSAL EXHIBITS

PART I

PROPOSAL DATA

(TO BE SUBMITTED WITH TECHNO-COMMERCIAL BID)

CONTENTS

SCHEDULES DESCRIPTION

SCHEDULE-I PROPOSAL PARTICULARS

SCHEDULE-II TECHNICAL PARTICULARS

SCHEDULE-III LIST OF TOOLS AND TACKLES

SCHEDULE-IV DRAWING SUBMISSION SCHEDULE


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Bharat Oman Refineries Ltd.



Doc. No. : 7703-71-60-TS-001 1 of 133 DEVELOPMENT CONSULTANTS PVT. LTD.

SCHEDULE I : PROPOSAL PARTICULARS

1. Bidder's Complete Company Name :and Address, :

Tel no. fax no. and :

E-mail ID :

2. Bidder's Proposal Number & Date :

3. Bidder's Proposal Validity :

4. Name and Designation of the Officer with E-mail IDof the Bidder to whom all references shall be made

for expeditious technical co-ordination :

5. a. Whether earnest money deposited as per :tender stipulations

b. If so, give details :

c. If not, give reasons :

6. Terms of Payment :

a. Terms of payment as per Purchaser's

terms and conditions is acceptable :

b. If not, specify terms of payment :

7. Completion Time

a. Completion time in months for completesubstation from the date of issue of'Letter of Intent' (allowing time forapproval of drawings and test certificates) :

b. Is the completion time guaranteed

under l under penalty? :


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Doc. No. : 7703-71-60-TS-001 2 of 133 DEVELOPMENT CONSULTANTS PVT. LTD.

SCHEDULE - I : PROPOSAL PARTICULARS (CONTD.)

8. Conformance (Yes/No)

a. Is the equipment offered strictly inaccordance with Owner's Specification? :

b. If not, have the Deviation sheet beenduly filled-up? :

c. Are proposal data sheets duly filled-up? :

d. All drawings, document, type testCertificates furnished? :

9. Performance guarantee period for the equipmentoffered -

a. From the date of commissioning at site :

b. From the date of dispatch :


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220/33kV Substation ofBharat Oman Refineries Limited

..BIDDERS NAME & SIGNATURE

Doc. No. : 7703-71-60-DB-002 3 of 133 DEVELOPMENT CONSULTANTS PVT. LTD.

SCHEDULE II : TECHNICAL PARTICULARS

A. EHVSUBSTATION 220 KV

1.1 Reference standard :

1.2 Switching Scheme :

1.3 Rated Voltage .kVrms :

1.4 System grounding :

1.5 Design ambient temperature---oC :

1.6 Rated continuous current at

design ambient temperature

Bus bar : A

Line/Trafo/ Bus coupler feeders : A

1.7 Short Circuit Rating

Rated short time withstand current : kArms

Duration Sec. :

1.8 Insulation level :

a) Rated one minute power Frequencywithstand voltage kV (r.m.s)

Phase- Phase :

Phase- Earth :

b) Rated Lightning impulsewithstand voltage kV ( peak)

Phase- Phase :

Phase- Earth :

c) Rated switching impulsewithstand voltage kV ( peak)

Phase- Phase :

Phase- Earth :


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B. 220 KV CIRCUIT BREAKERS

1.0 Name of Manufacturer :

2.0 Manufacturer's designation :


4.0 Type :

5.0 Service :

6.0 Pole :

7.0 Rated Voltage kV rms :

8.0 Rated Frequency Hz :

9.0 Mechanical Endurance Class :

10.0 Electrical Endurance Class :

11.0 Restrike Probability Class :

12.0 Electromagnetic Compatibility (EMC) :

13.0 Rated Insulation Level

13.1 Rated Lightning Impulse withstand voltage kVpeak

a) between phase to earth :

b) between phases and CB open :

c) across isolating distance :

13.2 Rated Switching Withstand Voltage KVpeak


b) between phases :


13.3 Rated 1 min. power freq. withstand voltage KVrms


b) between phases :


14.0 Corona extinction voltage with CB open or closein normal atmospheric conditions kVrms(min) :

15.0 Max. RI voltage at 1.1 Urated /3 Micro-Volts :


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B. 220 KV CIRCUIT BREAKERS (Contd.)

16.0 Rated normal Current at site condition Amps :

17.0 Limit of temperature rise :

18.0 Rated Making & Breaking Capacity :

18.1 Rated Short-circuit breaking current (Symm)kArms :

18.2 Percentage D.C. component :

18.3 Rated short-circuit making current (kA Peak) :

18.4 Rated peak withstand current KA (peak) :

18.5 Rated short time withstand current forrated duration of 1 sec. KA rms :

18.6 Rated line charging breaking current Amps rms :

18.7 Rated Out of phase breaking current in % ofrated Short Circuit Breaking current :

18.8 Rated Out of phase making current in % ofrated Short Circuit Breaking current :

18.9 Characteristic for short-line fault related torated short-circuit breaking current :

18.10 Rated capacitive switching breaking (Arms)/ in rush (KA peak) :

18.11 TRV Characteristics :

19.0 Inductive current breaking capability withoutexceeding over voltage by 2.0 pu. :

20.0 First pole to clear factor. :

21.0 Operating mechanism :

21.1 Type with functional description write-up :

21.2 Whether trip free operation with anti pumpingarrangement provided :

21.3 Spring charged mechanism

Rated Power KW :

Rated supply voltage, phase & frequencyand operating range V & Hz :

Spring Charging time :

Safety interlock provided :


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22.0 Operating time (ms) :

23.0 Closing time (ms) :

24.0 Rated Operating Sequence

For Auto Reclosing breakers :

For Non Auto Reclosing breakers :

25.0 Rated Supply Voltage and frequency for

25.1 Closing :

25.2 Tripping :

25.3 Spring Charge Motor :

25.4 Heater/Lamp/Socket :

26.0 Minimum Creepage distance mm :

27.0 Phase to phase spacing of terminal conductor mm :

28.0 Elevation of lower most terminal Conductor abovePlinth Level mm :

29.0 Rated Terminal Load Kgf :

30.0 Noise level Db at the base of CB :

31.0 Mounting structure :

32.0 Seismic Acceleration :

33.0 SF6 Gas :

34.0 Total break time measured from the instantof trip circuit energisation

34.1 At 10% breaking capacity mS :


35.0 Arcing time



36.0 Total length of arc. mm :

37.0 Breaks per pole No. :


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38.0 Length of break per pole mm :

39.0 Contact Travel :

39.1 Length of travel mm :

39.2 Rate of travel meter/s :

40.0 Make time mS :

41.0 Reclosing time with rated control voltage applied &measured from the instant of trip coil energisation :

41.1 Minimum dead time for first auto reclose mS :

41.2 Range of adjustment for single auto reclose mS :

43.0 Type of devices, if any, to limit the rate ofrestriking voltage :

44.0 Short circuit type test certificate furnished? Yes/No :

44.1 Certificate/Report No. :

44.2 Oscillogram No. :

45.0 Contacts

45.1 Type Main / Arcing :

45.2 Material Main / Arcing :

45.3 Whether the contacts are silver plated Yes/No :

45.4 Thickness of silver coating mm :

45.5 Contact pressure Kg/Cm2 :

46.0 Type of Arc control device :

47.0 Whether main air column and interruptersare pressurized? :

48.0 Maximum pressure developed in the arcingchamber at rated breaking capacity Kg/Cm2 :

49.0 Time limit for which the breaker can bekept open, if any :

50.0 Auxiliary Contacts

50.1 Total nos. of contacts furnished NO / NC Nos. :


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50.2 Spare contacts available for interlocks inaddition to those required for breaker'sown operation and indication NO / NC Nos. :

50.3 Contact type - convertible or fixed? :

50.4 Contact Rating at 110V D.C. 240V A.C.

a. Make and Continuous Amps :

b. Break (Inductive) Amps :

51.0 Permissible variation of 110V D.C.

51.1 Closing :

51.2 Tripping :

52.0 Permissible variation of working pr. of Breaker

52.1 Closing :

52.2 Tripping :

53.0 Air Consumption in litres (At NTP)

53.1 Duty cycle(0-3' CO-3' CO) :

53.2 Closing :

53.3 Opening :

53.4 Total scavenging & leakage :

54.0 Volume of air receiver per pole litre :

55.0 Minimum blocking air pressure

55.1 Closing Ata :

55.2 Tripping :

56.0 Minimum clearance

56.1 Phase to ground mm :

56.2 Phase to phase mm :

57.0 Arrangement provided for :

57.1 Pole discrepancy :

57.2 Trip free/Fixed trip :


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57.3 Anti pumping :

58.0 Operating mechanism :

59.0 Power requirement at 110V D.C.

59.1 Closing coil Watt :

59.2 Tripping coil Watt :

59.3 Spring charging motor Watt :

60.0 Type of interlocks furnished :

61.0 Accessories

61.1 Furnished as per Annexure? Yes/No :

61.2 If not, Deviation sheet duly filled up? Yes/No :

62.0 Bushings

62.1 Make :

62.2 Type :


62.4 Voltage class KV :

62.5 Momentary dry withstand voltage KV :

62.6 Visible discharge voltage KV :

62.7 One minute dry withstand voltage KV :

62.8 One minute wet withstand voltage KV :

62.9 Impulse withstand voltage KV peak :

62.10 Under oil puncture voltage KV :

62.11 Creepage distance, Total/Protected mm :

62.12 Height required to remove the bushing mm :

62.13 Permissible safe cantilever loading on bushing :

63.0 Nature of insulating medium of bushing :

64.0 Overall dimensions of the circuit breakercomplete with bushing, mechanism box etc. mm :

65.0 Circuit Breaker Weight


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65.1 Total Weight Kg :

65.2 Impact for foundation design to include deadload plus impact value on opening at max.interrupting rating in dead load Kg :

66.0 Shipping dimension of the largest package(LxBxH). mm :

67.0 Shipping weight of the heaviest package Kg :

68.0 Spare quantity of SF6 gas furnished ? If so,indicate the total quantity :

69.0 Number of openings, the Circuit Breaker iscapable of performing without inspection,

replacement of contacts or other main parts.

69.1 At 50% rated current :

69.2 At 100% rated current :

69.3 At 50% rated breaking capacity :

69.4 At 100% rated breaking capacity :

C.1. 220 kV DISCONNECTING SWITCHES

1.0 Manufacturer's Name :



4.0 Type :

5.0 Service :

6.0 Poles No. :


8.0 Rated voltage KV :

9.0 Current Rating

9.1 Rated continuous current at site condition Amps :

9.2 Rated Short time withstand current for 1s KA rms :

9.3 Peak withstand current KA peak :

10.0 Temperature rise above 50o

C ambient


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C.1. 220 kV DISCONNECTING SWITCHES (Contd.)

10.1 At rated normal current oC :

10.2 At rated short time withstand current oC :

11.0 Current density at minimum cross-section ofdisc switch blade A/mm2 :

12.0 Maximum current the isolator can safely interrupt

12.1 Bus/line charging current Amp :

12.2 Potential transformer magnetizing current Amp. :

13.0 Clearances (minimum)

13.1 Live parts to ground mm :

13.2 Phase to Phase mm :

13.3 Fixed contact to blade in open position mm :

14.0 Rated insulation level

14.1 Rated Lightning impulse withstand voltage

a. Across the isolating distance KV peak :

b. To earth & between poles KV peak :

14.2 Rated Switching impulse withstand voltage

a. Across the isolating distance KV peak :

b. Between phase to earth KV peak :

c. Between phases KV peak :

14.3 One minute power frequency withstand voltage

a. Across the isolating distance KV rms :

b. To earth & between poles KV rms :

15.0 Operating mechanism

15.1 Type :

15.2 Motor rating

a. Output KW :

b. Voltage Volts :

15.3 Range of operating voltage % :


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15.4 Control voltage with range V% :

15.5 Torque required to operate the gang operateddisconnecting switch Kg.M :

16.0 Main Contacts

16.1 Type :

16.2 Material :

16.3 Contact pressure Kg/cm2 :

16.4 Contact area mm2 :

16.5 Whether silver plated? :

16.6 Thickness of silver plating mm :

17.0 Auxiliary Contacts

17.1 Spare contacts furnished NO / NC Nos. :

17.2 Type : convertible or fixed? :

17.3 Contact Rating at 110V D.C. 240V A.C.

a. Make and continuous Amps :


18.0 Operating time of motor operated mechanism

18.1 Opening Secs. :

18.2 Closing Secs. :

19.0 Rotating blade feature at the end of travel provided :

20.0 No. of operations that disc switch can withstand

without deterioration of contacts :


22.0 Accessories furnished as specified in Annexure? :

23.0 Insulator

23.1 Make :

23.2 Type :



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23.4 Number of units per stack :

23.5 Voltage class KV :

23.6 One (1) minute power frequency withstand voltage

a. Dry KV :

b. Wet KV :

23.7 Puncture withstand voltage KV :

23.8 Full wave (1.2/50 s wave) impulse withstand voltage

a. Positive polarity KV crest :

b. Negative polarity KV crest :

23.9 Creepage distance in air mm :

23.10 Tensile strength Kg :

23.11 Cantilever strength (Upright) Kg :

23.12 Compression strength Kg :

23.13 Torsional strength Kg :

23.14 Weight of the unit Kg :

23.15 Catalogue furnished? :

24.0 Dimension of Disconnecting Switch (L x B x H) mm :

25.0 Weight of the Disconnecting Switch Kg :

C.2. EARTHING SWITCH

1.0 Make :

2.0 Type :


4.0 Service :

5.0 Poles :

6.0 Current Rating

6.1 Short time for 1 sec KArms :

6.2 Peak Withstand current KApeak :


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C.2. EARTHING SWITCH (Contd.)

6.3 Making current KApeak :

7.0 Operating mechanism : :

8.0 Mounting :

9.0 Torque required to operate the gang operatedearthing switch Kg. M :

10.0 Auxiliary contacts

10.1 No. of contacts furnished NO / NC Nos. :

10.2 Type : Convertible or fixed? :

10.3 Contact Rating at : 110V D.C. 240V A.C

a. Make and continuous Amps :



12.0 Weight of the earthing switch Kg :

D. 220 kV CURRENT TRANSFORMER




4.0 Type :

5.0 Service :

6.0 Rated Voltage kVrms :


8.0 Insulation Level

a. 1 minute 50 Hz dry & wet withstandvoltage (kVrms) :

i. HV terminal & earth :

ii. Secondary winding :

b. Impulse withstand voltage with1.2x50 s (kVpeak) :

c. Switching impulse withstand voltage with250/2500 s (kVpeak) :


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D. 220 kV CURRENT TRANSFORMER (contd.)

9.0 Short-time Current

a. Rated 1-second current kArms :

b. Rated dynamic current kApeak :

10.0 Insulation class :

11.0 Maximum temperature rise over designambient temperature 0 C :


13.0 Creepage distance mm/ KV :

14.0 Partial discharge level pC :

15.0 Accessories furnished as per annexure? Yes/no :

16.0 Approximate dimensions (LXBXH) mm :

17.0 Approximate Weight Kg. :

18.0 Rated Terminal Load Kgf :

19.0 Mounting structure :

20.0 Seismic Acceleration :

21.0 C.T. ratios & parameters

CoreNo.

Description

CurrentRatioA/A

OutputBurden

VA

Acc.Class

ISF

Min. Kneepoint voltageVK(volt) athighest ratioKPV

MaxExcitationCurrent I e(mA) atKPV

Max CTSec.ResistanceRCT(ohm)at highestratio

Feeder type :

Core-1

Core-2Core-3

Core-4

Core-5

E. 220 kV CVT

1.0 Make :

2.0 Type :

3.0 Reference Standard :


131/150





E. 220 kV CVT (Contd.)

4.0 Service :

5.0 Rated Frequency with tolerance Hz % :

6.0 Voltage Class KV :

7.0 Insulation Level

7.1 1-Minute 50Hz Withstand KV :

7.2 Impulse Withstand KVpeak :

8.0 Over Voltage Factor

8.1 Continuous :

8.2 30-second :

9.0 Insulation

9.1 Type :

9.2 Class :

10.0 Max. Temp. rise over 50oC ambient oC :

11.0 Creepage Distance mm./KV :

12.0 V.T. Ratings

12.1 Voltage ratio V/V :

12.2 Rated burden VA :

12.3 Accuracy class :

12.4 Rated thermal burden :

12.5 Connection :

13.0 Secondary fuse

13.1 Make :

13.2 Type :

13.3 Rating A :

13.4 Breaking capacity kA :

14.0 H.V. Capacitor

14.1 No. of stack Nos. :


132/150





E. 220 kV CVT (Contd.)

14.2 Capacitor per stack pF% :

15.0 Intermediate Capacitor

15.1 No. of stack Nos. :

15.2 Capacitor per stock pF% :

16.0 Total equivalent capacitance pF :

17.0 Open circuit intermediate voltage kV :

18.0 Protective gap setting kV :

19.0 Inductance of series reactor mH :

20.0 CVT suitable for frequency range Khz :

21.0 Approx. Dimensions (L x B x H) mm :

22.0 Approx. Weight Kg :

23.0 Accessories furnished as per Annexure? :

F. 220 & 33 kV LIGHTNING ARRESTERS 220 kV 33 kV

1.0 Make :

2.0 Type :


4.0 L.A. Rating

4.1 Rated Voltage kV :

4.2 Rated frequency Hz :

4.3 Nominal discharge current, 8/20-Sec kApeak :

4.4 Long duration Discharge Class :

4.5 Permissible continuous operatingVoltage (COV) kVrms :

5.0 Residual Voltages

5.1 Maximum residual voltage at Lightning impulseof 8/20 s wave KV peak :

5.2 Max. switching impulse Residual voltage kVpeak :

5.3 Max. steep ct. impulse Residual voltage kVpeak :


133/150





F. 220 & 33 kV LIGHTNING ARRESTERS (Contd.) 220 kV 33 kV

6.0 Impulse current withstand

6.1 High current short duration (4/10 s wave) kApeak :

6.2 Long duration current for

a. 1000 s kApeak :

b. 2000 s kApeak :

7.0 Energy absorption capability KJ/kV :

8.0 Insulation Level of arrester housing

8.1 1-min. 50 Hz withstand voltage (wet) kVrms :

8.2 Lightning Impulse Withstand Voltage kVpeak :

8.3 Switching Impulse withstand Voltage kVpeak :

9.0 Max. RI voltage At 1.1Urated/ v3 V :

10.0 Partial discharge level at 1.05 COV pC :

11.0 Porcelain Creepage distance kV/mm :

12.0 Pressure relief current KA :

13.0 Pressure relief class :

14.0 No. of section per pole No. :

15.0 Approx. dimension (LxBxH) mm :

16.0 Approx. weight Kg :

17.0 Accessories furnished as per annexure Yes/No. :

18.0 Characteristic curve furnished Yes/No :

G. 220 kV WAVE TRAP




4.0 Type :

5.0 Service :


134/150





G. 220 kV WAVE TRAP (Contd.)

6.0 Rated Voltage kVrms :

7.0 Continuous current rating at designambient temperature Amp. :

8.0 Emergency overload current Amp :


10.0 Short-time Current

a. Rated 1-second current kArms :

b. Rated dynamic current kApeak :

11.0 Insulation class :

12.0 Maximum temperature rise overdesign ambient temperature 0 C :


14.0 Corona extinction voltage kVp :

15.0 Rated inductance mH :

16.0 Power frequency Inductance mH :

17.0 Q factor :

18.0 Insulation level of mail coil & tuning device kVp :

19.0 Blocking range KHz :

20.0 Minimum guaranteed resistive componentover blocking range Ohm :

21.0 Tapping loss Db :

22.0 Type of tuning :

23.0 Type of mounting :

24.0 Type of protective device :

25.0 Nominal discharge current of protective device(8/ 20 s wave impulse) KA :

26.0 Rated voltage of arrester KV :

27.0 Max residual voltage for 8/ 20 s wave in KVp :

28.0 Front of wave impulse spark-over voltage

(0.5 x 1.5 s 10 KA impulse current) KVp :


135/150





G. 220 kV WAVE TRAP (Contd.)

29.0 Whether corona rings are provided :

30.0 Whether bird barriers are provided :

31.0 Accessories furnished as per annexure? Yes/No :

32.0 Material of main coil :

33.0 Material of terminal connector :

34.0 Material of pedestal/ suspension link :

35.0 Clamps & connectors provided :

36.0 Material of mounting hardware :

37.0 Overall dimension (dia X height) mm :

38.0 Approximate Weight Kg. :

H. POWER LINE CARRIER COMMUNICATION

1.0 COUPLING DEVICE

1.1 Make :

1.2 Type, model :

1.3 Whether suitable for mounting outdoor substation?Type of mounting :

1.4 Max. Temp Limit for satisfactory operationin Outdoor :

1.5 Net weight :

1.6 Nominal Primary side impedance :

1.7 Nominal Secondary side impedance :

1.8 Composite Loss within pass band :

1.9 Return Loss within pass band :

1.10 Available band width with 4400 pF CVT :

1.11 Nominal Peak Envelope Power (with distortion& inter-modulation products 80Db down) :

1.12 Maximum number of PLC terminals that can beconnected in parallel:

a) 20 W PEP PLC terminals :


136/150





H. POWER LINE CARRIER COMMUNICATION (Contd.)

b) 40 W PEP PLC terminals :

c) 100 W PEP PLC terminals :

1.13 Power frequency Impedance between primaryterminal & Earth terminals of Coupling device :

1.14 1 Minute Power frequency Insulation Level betweenPrimary & secondary Terminals of coupling device :

1.15 Impulse(1.2/50 micro sec ) withstand :

1.16 Power frequency current carrying capacity of draincoil (or Primary winding of matching transformer)

a) Continuous current :

b) Short time current for 0.2 sec :

1.17 Inductance of drain coil at 50 Hz :

1.18 Surge arrestor in Primary side

a) Type, model, Rate voltage :

b) Power frequency spark over :

c) Type of construction :

d) Max. Permissible discharge current ( 8/20 Microsec wave) :

e) Max. Permissible short time current(2.2 Micro sec) :

f) Power frequency discharge current 0.2 sec

g) Impulse spark over (1.2/50 micro sec wave) :

1.19 Surge arrestor in Primary side

a) Type, model, Rate voltage :

b) Power frequency spark over :

c) Impulse spark over (1.2/50 micro sec wave) :

1.20 Details of interlock provided with cover :( Earth Switch etc)

1.21 Ground switch rated voltage :


137/150






1.22 Overall Dimension :

1.23 No of HF terminal Provided for carrier connection :

2.0 HF COAXIAL CABLE

2.1 Make :

2.2 Type, model :

2.3 Applicable standards :

2.4 Characteristics Impedance :

2.5 Rated Capacitance Per meter :

2.6 Rated Service Voltage :

2.7 Attenuation per KM of cable at various carrierfrequency in the range of 50 to 500 KHz :

a) At 10 kHz :

b) At 60 kHz :

c) At 300 kHz :

d) At 500 kHz :

2.8 Withstand Test voltage between conductor & sheath:

2.9 Details & Particular of Insulation :

2.10 Loop Resistance Per Km at 20 Deg C :

2.11 Details of protective armouring provided :

2.12 Number & Dia of Stranded conductor :

2.13 Overall diameter of the cable :

2.14 Net weight per Km :

2.15 Min Bending Radius :

2.16 Earthing detail of HF cable :

2.17 Drum Length :

2.18 Construction drawing attached :


138/150





H. POWER LINE CARRIER COMMUNICATIO (Contd.)

3.0 POWER LINE CARRIER TERMINAL:

3.1 Make

:3.2 Type, model:

3.3 Type of Modulation

3.5 Carrier Frequency Range :

3.6 Nominal Carrier Frequency Band in either directionof transmission

:

3.7 Return loss within the Nominal Carrier FrequencyBand

:

3.8 Effectively Transmitted V.F. Band

a) For Speech :

b) For telephone signaling :

3.9 Return loss within the Effectively Transmitted VoiceFrequency Band

:

3.10 H.F. Oscillator Details :

3.11 I.F. Oscillator Details :

3.12 Frequency Difference between the V.F. Input andV.F. Output of a pair of terminals connected back toback for permissible Ambient Temperature andsupply voltage

:

3.13 Maximum H.F. Amplifier output with Single/Multipletone keying (Peak Envelope Power)

:

3.14 Nominal carrier frequency Power (Peak EnvelopPower) at output terminals

:

3.15 H.F. impedance at output of carrier terminals :

3.16 Stability of the carrier frequency :

3.17 Improvement in S/N due to compander :

3.18 Whether carrier is suppressed or reduced duringtransmission of signal

:

3.19 Whether frequency locking between Tx/Rx provided :


139/150





H. POWER LINE CARRIER COMMUNICATIO (Contd.)3.20 Level of spurious emissions at

a) Edge of nominal Carrier Frequency Band :

b) 4.0 kHz away from nominal carrier freq. band :

3.21 Relative level at V.F. 4 wire terminating points:

a) Send leg :

b) Receive leg :

3.22 Permissible limits for level variation with frequencyrelative to 800 Hz in a speech channel (withoutcompanders) transmitted over a pair of terminals

connected back to back

:

3.23 Variation in overall loss of speech circuit with a pairof PLC terminals connected back to back (WithoutCompanders & limiters) when voice frequency inputlevel changes from 10 to 0 dB

:

3.24 Psophometric Noise contribution of a pair of PLCterminals connected back to back

:

3.25 Noise frequency bandwidth :

3.26 Group delay distortion in the frequency bandrelevant to the transmission of protection

:

3.27 Signal delay with two PLC terminals connectedback to back

:

3.28 Power supply requirements

a) Voltage :

b) Permissible voltage variation :

c) Maximum current :

3.29 Installation details :

3.30 Meters provided on test panel, their ranges andpurposes

:

3.31 Is the equipment suitable to work in dust ladenatmosphere

:

3.32 Whether interior lamps with door switch provided

in cabinets

:


140/150






3.33 Overall dimensions :

3.34 Weight :


3.36 Earthing details of PLC cabinets :

3.38 Whether TX.RX loop back facility available for testinglocally

:

3.39 Automatic Gain control range and regulation :

3.40 Level of telephone signaling channel

a) Input level :

b) Output level :

3.41 Operating range of compandor :

3.42 Compression ratio of compandor :

3.43 Expansion ratio of expandor :

3.44 Near and far end cross talk due to Telephone signalingchannel in a pair of PLCC terminals connected back to

back

:

3.45 Cabinet Installation details :

3.46 Cabinet paint details :

3.47 Pulse distortion of telephone signaling channel withoperated at signaling speed of 10 pps and with a markto space ratio of 40/ 60 in PLCC terminal connectedback to Back

:

4.0 EPAX

4.1 Make :

4.2 Type, model :

4.3 Number of subscriber lines

a. Wired for :

b. Equipped for :


141/150






4.4 Number of trunk/VoIP lines

a. Wired for :

b. Equipped for :

4.5 Whether the facility to bar subscribers access to thecarrier lines is provided during maintenance?

:

4.6 P.G. lockout facility provided along with alarm :

4.7 Audio visual alarm on fault provide :

4.8 Operable in conjunction with PLCC :

4.9 Signal Pulse width

a. Engage Pulse :

b. Priority pulse :

c. Digit pulse :

d. Interdigit pulse :

e. Release pulse :

4.10 Operating voltage :

4.11 Power requirement :

4.12 Overall dimension :

4.13 Mounting arrangement :

4.14 Weight :

4.15 Type of switching PCM/TDM :

4.16 Four wire interfaces are built in? :

4.17 Max number of PLC terminals can be connected tosingle EPAX

:

4.18 Built in Self diagonostic & monitoring feature :

4.19 Facilities available

a. Priority cutting :

b. Conference :


142/150






c. Alternate routing :

d. Call transfer :

4.20 Max Loop resistance permissible

a. For trunk Lines :

b. For subscriber lines :

4.21 Suitable to work with DoT leased lines as perclause 10.2.2 of Section PLCC

:

5.0 PROTECTION COUPLER

5.1 Make :

5.2 Type, model :

5.4 Equipment suitable for independently protecting two :Circuits?

5.5 Frequencies used for uncoded signal transmission

a. Guard Frequency :

b. Working Frequency- Command 1 :

c. Working Frequency- Command 2 :

d. Working Frequency- Command 1+2 :

5.6 Criteria used for command transmission :Opto isolator keying

5.7 Equipment protection against spurious tripping :

5.8 Transmission time for coded signal :

5.9 How Selective tripping is achieved in case of presence of :spurious signals

5.10 Mode of transmission of guard signal :

5.11 Is the equipment suitable for direct breaker tripping :

5.12 Max Number of Noise impulses pps in presence for :satisfactory operation

5.13 Signal delay with two terminals connected back to back :


143/150






5.14 Command signal acknowledged at receiving end?Command signal duration

:

5.15 During severe line noise

a. False trip probability :

b. Fail to trip probability :

5.16 Transmitter Input Requirements

a. Voltage :

b. Current :

c. Power :

d. No of contacts :

5.17 Receiver output ( Contact Rating)

a. Voltage :

b. Current :

c. Power :

d. No of contacts :

5.18 Supervisory Alarm Contact

a. Voltage

:

b. Current :

c. No of contacts :

5.19 Power supply

a. Voltage :

b. Current :

c. Power :

5.20 Type & number of counters

a. Recording trip commands sent :

b. Recording trip commands received :

5.21 Loop test feasible :


144/150







5.23 Equipment suitable for transmitting more than two

independent commands

:

I. SUBSTATION HARDWARES & MATERIALS

1.0 CONDUCTOR ACSR TUBE BUS

1.1 Make :

1.2 Type :


1.4 Nominal Copper Area Sq.mm. :

1.5 Calculated equivalent Al Area Sq.mm. :

1.6 No. of Wire / Diameter of each

i) Al

ii) Steel

No/mm

No/mm

:

:

1.7 Overall diameter of conductor mm

1.7.1 Inner diameter of IPS Tube mm :

1.7.2 Outer diameter of IPS Tube mm :

1.7.3 Wall thickness for IPS Tube mm :

1.8 Weight of conductor/tube Kg/Km :

1.9 Ultimate tensile strength Kg. :

1.10 Co-efficient of linear expansion perdeg. Centrigrade.

:

1.11 Standard drum length & tolerance M & % :

1.12 Standard section length for IPS Tube M :

1.13 Calculated resistance at 20 0C whencorrection to standard wt.

Ohm/Km

:

1.14 Current carrying capacity at thefollowing ambient temperature

a) 45

0

C Amp :


145/150





I SUBSTATION HARDWARES & MATERIALS (Contd.)

b) 500C Amp :

c 550C Am :

d) 600C Amp :

e) 650C Amp :

f) 700C Amp :

g) 750C Amp :

1.15 Short circuit current rating for 1 sec.and corresponding conductor temp. :

2.0 GS SHIELD WIRE

2.1 Make :

2.2 Type :


2.4 No. and diameter of each strand :

2.5 Eq. Area Sq.mm :

2.6 Overall diameter mm :

2.7 Wt. Of conductor Kg/Km :

2.8 Ultimate Tensile strength Kg :

2.9 Wire hot dip galvanized ? Yes/No :

2.10 Thickness of galvanising mm :

3.0 CLAMPS, CONNECTORS,SPACERS ETC.

3.1 Make & Reference standard :

3.2 Type and Catalogue No. :

3.3 Materials of the connectors & clamps :

3.4 Material of Bolt, Nut, Washer etc. :

3.5 Material of U Bolt, Nut, Washer etc. :

3.6 Composition of Alloy & Purity :


146/150





I. SUBSTATION HARDWARES & MATERIALS (Contd.)

3.7 Weight of each connector/clamp :

3.8 Method of atmospheric protection :

3.9 Ultimate strength of each clamp Kg :

3.10 Operation temp. 0C :

3.11 Current rating at 50 0C / 65 0C ambient

a) ContinuousAmp

:

b) For 1 sec. kA :

3.12 Temperature rise limit when carrying

normal current.

0C

3.13 Method of casting :

3.14 Weight of one connector/clamp :

3.15 Particulars of galvanisation :

3.16 Packing details :

3.17 Breaking load of

a) Suspension clamp Kg. :

b) Tension clamp Kg. :

c) Suspension string Kg. :

d) Tension string Kg. :

3.18 Slipping Strength ofa) Suspension Clamp Kg. :b) Tension Clamp Kg. :

3.19 Drawings furnished (Yes/No) :

4.0 STRING/SUSPENSION INSULATORS

4.1 Make :

4.2 Type :


4.4 Rated Voltage kV :



147/150






4.5.1 Power frequency Dry withstand voltageof single disc.

kVrms

:

4.5.2 Power frequency Wet withstand voltageof single disc.

kVrms

:

4.5.3 (+ve) wave dry impulse withstandvoltage of single Disc.

kVp :

4.5.4 (-ve) wave dry impulse withstand voltageof single Disc.

kVp :

4.5.5 Power frequency Dry withstand voltageof complete string without arcing horns.

kVrms

:

4.5.6 Power frequency wet withstand voltageof complete string without arcing horns.

kVrms

:

4.5.7 Dry impulse withstand voltage of thecomplete string without arcing horns.

kV :

4.6 Flash over voltage

4.6.1 Power freq. dry flashover voltage ofsingle disc.

kVrms

:

4.6.2 Power freq. Wet flashover voltage ofsingle disc.

kVrms

:

4.6.3 (+ve) wave dry impulse flashover voltageof single disc.

kVp :

4.6.4 (-ve) wave dry impulse flashover voltageof single disc.

kV p :

4.6.5 Power Freq. Dry flashover voltage ofcomplete string without arcing horns.

kVrms

:

4.6.6 Power Freq. Wet flashover voltage ofcomplete string without arcing horns.

kVrms

:

4.6.7 Dry impulse flashover voltage of thecomplete string without arcing horns. kV p

:

4.7.0 Power frequency puncture voltage ofsingle Disc/complete string

kVrms

:

4.8.0 Corona formation voltage for

a) Single Disc. :


148/150






b) Complete string :

4.9.0 Whether curve of voltage distribution

on individual unit with normal fittingsbut without arcing horns is furnished?

Yes/No :

4.10.0 Electro-mechanical strength Kg. :

4.11.0 Breaking strength of single Disc. Kg. :

4.12.0 Visible discharge 50 Hz voltage kV rms :

4.13.0 Creepage distance/protectivecreepage distance.

mm :

4.14.0 Failing load Kg. :

4.15.0 Total weight for string Kg :

4.16.0 Dimension

4.16.1 Physical Ball and socket Dimension. :

4.16.2 Outside diameter of Disc. mm :

4.16.3 Distance between centres of Disc. mm :

4.16.4 Leakage distance of Disc. mm :

4.17.0 No. of Disc. per string for highestsystem voltage

:

4.18.0 Material and surface treatment of

a) Socket cap

b) W Clip

c) Cushion

d) Ball pin

:

:

:

:

4.19.0 Type test certificate furnished? Yes/No :

4.20.0 Accessories furnished as perAnnexure? (specification)

Yes/No :

4.21.0 Characteristic curve furnished? Yes/No :

5.0 POST INSULATOR

5.1 Make :


149/150






5.2 Type :


5.4 Rated voltage & frequency kVrms/Hz :

5.5. Insulation level

5.5.1 Dry one minute power frequencywithstand voltage (KV) rms.

:

5.5.2 Wet one minute power frequencywithstand voltage (KV) rms

:

5.5.3 Dry power frequency flashovervoltage (KV) rms

:

5.5.4 Wet power frequency flashovervoltage (KV) rms.

:

5.5.5 Dry impulse withstand vol. (+ve/-ve) kVp/kVp :

5.5.6 Dry impulse flashover vol. (+ve/-ve) kVp/kVp :

5.6 Visible discharge 50 Hz voltage kV rms :

5.7 Total creepage distance / protectivecreepage distance.

mm/mm :

5.8 Cantilever strength (Upright /inverted) per stack.

Kg. :

5.9 Tensile strength Kg :

5.10 Compression strength Kg :

5.11 Torsional strength Kg :

5.12 No of insulators per stack Kg :

5.13 Thickness of Bottom & upper metalpart.

:

5.14 Details of holes in bottom & uppermetal parts of stack.

:

5.15 Details of bolts nuts, washers &studs etc.

:


150/150




5.16 Minimum clearance between phaseto earth.

:

5.17 Dry arcing distance :

5.18 Weight per stack Kg :

5.19 Height per stack mm :

5.20 Physical dimension (Attach GA Dwg) mm :

5.21 Accessories furnished as per Annex? Yes / No :

5.22 Characteristic curve furnished? Yes / No :

6.0 BAY MARSHALLING KIOSK / JUNCTION BOX

6.1 Make :


6.3 Enclosurea. Degree of Protection :b. Material :c. Sheet metal thickness mm :d. Finish Colour/Shade :

6 4 No of Terminals provided as per Yes/No :

20 doc borl nit-part-3

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