DATA SHEET-Volume III Part B.docx

ABHIJEET GABON POWER S.A.

TECHNICAL SPECIFICATION OF EPC CONTRACTFOR

218 MW COMBINED CYCLE POWER PROJECTAT LIBREVILLE, GABONVolume – III Part B

Electrical

Rev. 0 – 06.03.12 Document No: P.003080 E49 0457 Page 1 of 88

TABLE OF CONTENT

1 DATA SHEET TO BE FILLED BY BIDDER......................................................2

1.1 GENERATOR.........................................................................................................2

1.2 GENERATOR CIRCUIT BREAKER..........................................................................16

1.3 ISOLATED PHASE BUS DUC................................................................................23

1.4 TRANSFORMERS.................................................................................................25

1.5 HIGH MEDIUM VOLTAGE SWITCHGEAR..............................................................29

1.6 LOW VOLTAGE SWITCHGEAR.............................................................................34

1.7 MOTOR...............................................................................................................37

1.8 DIESEL GENERATOR SET....................................................................................40

1.9 DC BATTERY AND BATTERY CHARGER...............................................................49

1.10 UPS..................................................................................................................... 53

1.11 ILLUMINATION....................................................................................................58

1.12 SWITCHYARD......................................................................................................61

1.13 CABLE................................................................................................................ 86


1 DATA SHEET TO BE FILLED BY BIDDER

1.1 Generator


Sr. No. Description Unit Parameter

1.0 GENERATOR MAIN PARAMETERS

1.1 Make, type and model & serial number

As per approved vendor list.

1.2 Maximum continuous rating MW MVA 70 MW/82.5 MVA for Gas turbine generator .

80 MW/95 MVA for Steam turbine generator

1.3 Rated terminal voltage kV 11 KV

1.4 Rated current Amps 4332 A for GTG

4987 A for STG

1.5 Rated frequency Hz 50

1.6 Rated power factor 0.85

1.7 Rotor current at Max. Continuous rating(MCR0

Amps To be furnished during detail engg.

1.8 Rotor voltage at MCR Volts To be furnished during detail engg

1.9 Maximum permissible variation range in :

a) Rated terminal voltage % +/- 5 % at rated power factor

b) Rated frequency % 47.5 Hz to 51.5 Hz.

c) Combined permissible variation of frequency and voltage (with characteristic- curves)without exceeding safe temperature rise.

% +/-10%

1.10 Synchronous speed rpm 3000

1.11 Number of poles Number 2

a) Line terminals brought out To be furnished during detailed engg.



b) Parallel paths per phase To be furnished during detailed engg.

b) Neutral terminals brought out To be furnished during detailed engg.

1.12 Type of stator winding connection 3-Phase,Star

1.13 Degree of protection of the enclosure for generator installed Indoor

IP54

1.14 Details of fire detection / protection provided for the generator with write-up,supplied

By CO2 injection internally

1.15 Generator efficiency at :

a) 100% load % To be furnished during detailed engg.

b) 75% load % To be furnished during detailed engg.

c) 50% load % To be furnished during detailed engg.

1.16 Minimum guaranteed short circuit ratio corresponding to maximum capability

1.1

1.17 Designation for method of cooling as per IS / IEC standards Air cooled

1.18 Rated Hydrogen pressure Kg / cm2

(g)NA

1.19 Basic impulse insulation withstand voltage of stator winding with respect to earth

kV (peak) To be furnished during detailed engg.

1.20 Permissible unbalanced loading subject to rated current not being exceeded in any phase

To be furnished during detailed engg.

a) Maximum continuous negative phase sequence current I2

% 10%





b) Maximum value of I22 t For transient

operation under system fault conditions (where t is in seconds)


1.21 Maximum permissible capacitive loading at rated load & voltage

MVAR 63.2

1.22 Generator short time overload capability

% To be furnished during detailed engg.

1.23 Generator over speed capability % To be furnished during detailed engg.

2.0 GENERATOR PARAMETERS

2.1 Generator reactances in percent at rated kV and MVA, both saturated and unsaturated


2.1.1 Direct axis synchronous reactance Xd


2.1.2 Quadrature axis synchronous reactance Xq


2.1.3 Direct axis transient reactance Xd’ % To be furnished during detailed engg.

2.1.4 Quadrature axis transient reactance X’q


2.1.5 Direct axis sub-transient reactance X”d


2.1.6 Quadrature axis sub-transient reactance X”q


2.1.7 Negative phase sequence reactance X2


2.1.8 Zero phase sequence reactance Xo % To be furnished during detailed engg.

2.1.9 Potier reactance % To be furnished during detailed engg.



2.1.10 Wave form factor To be furnished during detailed engg.

2.1.11 Telephone interference factor % To be furnished during detailed engg.

2.2 Permissible tolerance on all guaranteed reactance values

% (+) To be furnished during detailed engg.

2.3 Synchronous impedance Ohms To be furnished during detailed engg.

2.4 Transient open circuit time constant T’

msec. To be furnished during detailed engg.

2.5 Effective winding capacitance to earth


a) Per phase F To be furnished during detailed engg.

b) All phase connected together F To be furnished during detailed engg.

3.0 GENERATOR TEMPERATURE RISES

3.1 Guaranteed temperature rise over max. inlet cooling air / Hydrogen temperature at rated load


a) Stator windings oC To be furnished during detailed engg.

b) Stator core oC To be furnished during detailed engg.

i) In contact with insulated winding oC To be furnished during detailed engg.

ii) Not in contact with insulated winding oC To be furnished during detailed engg.

c) Rotor windings oC To be furnished during detailed engg.



3.2 Maximum cooling inlet air / hydrogen temperature corresponding to the highest cooling water temperature at rated load

Unit To be furnished during detailed engg.

3.3 Maximum temperature rise To be furnished during detailed engg.

a) Collector rings 0C To be furnished during detailed engg.

b) Generator Bearings To be furnished during detailed engg.

- Turbine end 0C To be furnished during detailed engg.

- Exciter end oC To be furnished during detailed engg.

c) Oil inlet temperature at highest bearing cooling water temperature

oC To be furnished during detailed engg.

4.0 GENERATOR LOSSES

4.1 Generator losses (curves for various losses vs load at different hydrogen pressure shall be enclosed)

a) Iron loss at no load kW To be finalized later

b) Iron loss at full load kW To be finalized later

c) Stray loss kW To be finalized later

d) Stator copper loss at full load kW To be finalized later

e) Rotor copper loss at No load kW To be finalized later

f) Rotor copper loss at full load kW To be finalized later

g) Friction and windage losses kW To be finalized later



h) Mechanical losses including bearing losses

kW To be finalized later

i) Total generator losses kW To be finalized later

5.0 GENERATOR STATOR CORE PARTICULARS

5.1 Stator core-outer diameter mm To be furnished during detailed engg.

5.2 Stator core-length mm To be furnished during detailed engg.

5.3 Air gap mm To be furnished during detailed engg.

5.4 Flux densities in various parts of the stator core under no-load and full load

NO LOAD / FULL LOAD

5.4.1 Air gap T To be furnished during detailed engg.

5.4.2 Stator core T To be furnished during detailed engg.

5.4.3 Stator teeth T To be furnished during detailed engg.

5.4.4 Rotor core T To be furnished during detailed engg.

5.4.5 Rotor teeth T To be furnished during detailed engg.

6.0 TYPE AND CONNECTION OF STATOR WINDINGS

6.1 Total No. of stator bars (top & bottom)

No. To be furnished during detailed engg.

a) @ 25 deg C ohms To be furnished during detailed engg.



b) @ 75 deg C ohms To be furnished during detailed engg.

7.0 ROTOR WINDING PARTICULARS

7.1 Class of field winding insulation CLASS F

7.2 Rotor winding resistance

a) @ 25 deg. C Ohms *

b) @ 75 deg. C Ohms *

8.0 GENERATOR MISCELLANEOUS

PARTICULARS

8.1 Noise level in free field / semi-reverberant conditions

a) No load (indicate distance also) dB (A) To be furnished during detailed engg.

b) On load (indicate distance also) dB (A) To be furnished during detailed engg.

8.2 Direction of rotation of generator as seen from turbine end


8.3 Vibration amplitude (peak to peak) To be furnished during detailed engg.

a) Stator core vibration micro meter


b) Stator core natural frequency c/s To be furnished during detailed engg.

c) Stator frame vibration micro meter


d) Rotor vibration micro meter




e) Bearing vibration micro meter


8.4 No. and type of RTD’s / thermocouples provided

8.4.1 Stator winding No. As per system requirement

8.4.2 Stator core No. As per system requirement

8.4.3 Rotor winding No. As per system requirement

8.4.4 Bearings As per system requirement

a) Turbine end No. 1 No . for Gas turbine Generator

1 No . for Steam turbine Generator

b) Exciter end No. 1 No . for Gas turbine Generator

1 No . for Steam turbine Generator

9.0 EXCITATION SYSTEMS STATIC

9.1 Excitation System Parameter

9.1.1 Type of excitation system offered Brushless/Static

a) Nominal field voltage Volts 313.7 V for Gas turbine Generator 250.1 V. for Steam turbine

Generator

b) Maximum field voltage Volts To be furnished during detailed engg.*

c) Ceiling / Field forcing voltage Volts As indicated

d) Minimum and maximum field current with generator at i) No load ii) generator at 100% load

Amps To be furnished during detailed engg.*

9.1.2 Generator field characteristics



a) With generator at no-load and rated voltage

Volt Amps *

b) With generator at 125% of MCR Volt Amps *

c) With generator at rated load and rated Voltage at:

*

i) Rated p.f Volt Amps *

ii) Unity p.f. Volt Amps *

9.2 Make & type of online diode monitoring system

9.3 Brushless/Static Excitation System STATIC

9.3.1 Ratings :

(a) Continuous max. Output kW 212.2 KW for Gas turbine Generator .

175.7 KW for Steam turbine Generator

(b) Rated voltage Volts 313.7 V for Gas turbine Generator 250.1 V. for Steam turbine

Generator

(c) Rated current Amps 676.1 A for Gas turbine Generator

702.3 A for Steam turbine Generator

(d) Rated full load speed rpm *

(e) Rated frequency Hz *

(f) Ceiling voltage Volts *

(g) Response ratio S *

(h) Expected peak current for terminal short circuit

Amps *



(i) Short time capacity kW/sec

9.3.1.2 Winding (Stator/Rotor):

(a) Type *

(b) Class of insulation *

9.3.1.3 Type of cooling provided *

9.3.1.4 Degree of protection for the exciter enclosure *

9.3.1.5 Type of drive *

9.3.2 Auxiliary exciter -permanent magnet generator(PMG) *

9.3.2.1 Ratings :

(a)

Continuous maximum

Continuous maximum output kW *

(b)

voltage

Rated voltage Volts *

(c)

current

Rated current Amps *

(d)

frequency

Rated frequency Hz *



(e)

time capacity

Short time capacity kVA/ sec *

9.3.2.2 Winding :

(a) *

(b) *

9.3.2.3 Type of cooling provided *

9.3.2.4 Degree of protection for the PMG enclosure *

9.3.3 Rotating Diodes & fuses

9.3.3.1 Make and type of diodes *

9.3.3.2 Total number of diodes No. *

9.3.3.3 Number of parallel paths per bridge arm

No. *

9.3.3.4 No. of parallel paths per bridge arm necessary for generator MCR

No. *

9.3.3.5 Method of cooling adopted for diodes *

9.3.3.6 Type of protection provided for rotating diodes *

9.3.3.7 Ceiling output voltage/current V/A *

9.3.4 Excitation system cooling

9.3.4.1 Air-to-Water Cooler

(a)



(b)capacity per cooler

9.4 Voltage Regulator and Accessories

9.4.1 a) Type Thyristor controlled dual channel

9.4.1 b) Quantity

9.4.2 No. of auto & manual channels

9.4.3 Guaranteed sensitivity *

9.4.4 Range of voltage level setting :

- auto

- manual

*

9.4.5 Whether following limiters and compensators provided

(a) Minimum excitation limiter *

(b) Maximum stator current limiter *

(c) Maximum excitation limiter *

(d) Maximum rotor current limiter *

(e) Volts/Hz. Limiter *

(f)Reactive drop compensator *

(g) Load angle limiter *

(h) Power system stabiliser *

(j) Power factor Regulator *

9.4.6 Whether following features/ monitors provided



(i) Auto synchroniser *

(ii) Field earth fault monitor – 2 Stage based on injection principle

*

(iii) On line shaft leakage

current/voltage monitoring

device, with same location

*

(iv) Details of any other

features/devices provided

*

9.4.7 Critical speed

( 1st, 2nd, 3rd values )

*

9.4.8 Type of cooling for field control cubicles

Natural / Forced

9.5 Main Exciter Field Breaker

9.5.1 Type *

9.5.2 Current rating Amps *

9.5.3 Voltage rating Volts *

9.5.4 Rupturing capacity kA

9.5.5 Making capacity kAp

9.5.6 i) Type of operating mechanism

ii) Operating Voltage

9.6 Miscellaneous Details Of Excitation System



9.6.1 Whether the following accessories/ schemes provided

(a) Field discharge resistor

(b) Field current measurement facility

(c) Field and exciter earth fault protection scheme

10.0 HYDROGEN COOLING SYSTEM

NA

10.1 Hydrogen NA

10.1.1 Type & total number of coolers provided

Nos. NA

10.1.2 Number of coolers required in simultaneous use at MCR

Nos. NA

10.1.3 Maximum Generator Loading with one cooler out of service

MVA NA

10.1.4 Cooling water maximum inlet temperature at highest ambient air temperature

oC NA

10.1.5 Inlet cooling air / hydrogen temperature at above cooling water temperature

oC NA

10.1.6 Type and material of tubes NA

10.1.7 Tube sheet material NA

10.1.8 Water box and shell material NA

10.2 Hydrogen gas / air system NA



10.2.1 Max. Inlet / outlet temp. of hydrogen / air

oC NA

11.0 SEAL OIL SYSTEM To be furnished during detail engineering

11.1 Seal Oil “H2” side

11.1.1 No. of pumps No. *

11.2 Seal oil “Air” side

11.2.1 No. of pumps

(a) No. *

(b) No. *

12.0 EXCITATION SYSTEM COOLING

12.1 Type of cooling Air/Water

12.1.1 If air, forced or natural

(a) Rectifier Transformer panel

(b) Thyristor panels

(c) AVR panels

(d) Other panels

*

12.1.2 If forced, No. of fans each 100% duty.

Nos. *

12.1.3 Whether automatic changeover of fans provided or not?

*

12.1.4 Whether standby fan provided to achieve 100% duty

Yes / No *

13.0 GENERATOR CAPABILITY



AND OTHER MISCELLANEOUS DATA/DIAGRAMS

13.1 Capability of generator with and without AVR (furnish capability diagram)

*

13.2 Open circuit and short circuit characteristic (calculated) curves enclosed

Yes/No *

13.3 Current and kVA rating of generator at voltage above 100%

Amps/ kVA

*

13.4 Overload capacity of generator for 1,2,3,4,5,6,10,15 and 60 sec.

MVA *

13.5 Value of voltage rise of generator with and without AVR in circuit at full load throw-off

p.u *

13.6 The maximum continuous voltage / frequency at which the generator could operate, particularly during run up or after a load throw-off with AVR on manual control

Volts/ Hz *

13.7 The maximum possible peak voltage which will appear across the two ends of the generator field winding after a full load throw-off

Volts *

13.8 Recommended mode of generator stator neutral earthing and particulars of surge capacitor for generator.

*

13.9 Tests

13.9.1 All type and routine tests will be carried out as per relevant National / International Standards.

Yes/No *

13.9.2 Running trials will be conducted in the shop with the generator, exciter and AVR connected up and combined as a unit on the test bed

Yes/No *


1.2 Generator Circuit breaker


Sr. No.

Description Unit Parameter

1 Manufacturer *

2 Standards *

3 Type *

4 Rated Voltage kV *

5 Rated frequency Hz *

6Rated short-time withstand current for

1 sec. with breaker as housed in the

panel

kA

*

7 Making current(peak) kA

8 Dynamic over current rating kA *

9 Basic Insulation Lvel

One minute power frequency withstand

voltage

kV rms*

Impulse withstand voltage kV peak *

10 Temperature rise

a) Maximum temp. rise over ambient

specified

b) Ambient temperature

11 Interchangeability of similar equipment *

12 Type & no. of phases *


Sr. No.


13 Arrangement for isolating breaker for

maintenance provided

14 Standard applicable *

15 Whether antipumping device provided *

16Whether control circuitry suitable for

monitoring of closing & tripping

circuits

17 Maximum design voltage *

a) Symmetrical breaking capacity(in kA at

rated voltage)

b) Asymmetrical breaking capacity for

various breakers at rated voltage

18a) Rated continuous current rating for

various breakers and corresponding

temperature.

b) Rated continuous current rating for

various breakers at the specified

ambient temperature.

19 No. of breaks/pole *

20 Type of material of contacts *

21 Whether contacts silver plated and

thickness of plating

22 Whether breaker designed to close and


Sr. No.


latch for making current release


Sr. No.


23 Weather trip free or fixed trip

24 Type of closing mechanism

25 Normal voltage of closing/tripping

mechanism/spring charging motor

26 Allowable vibration of voltage for

above

27 Power required for normal voltage for

a) Trip coil

b) Closing coil

c) Spring charging motor

28 Weight of circuit breaker with arc

extinguishing medium

29 Opening time in cycles

30 Making time in cycles

31 Opening time at

a) 10% Current

b) 50% Current

c) 100% Current

32 Duty cycle

33 Weather 6 Nos. adjustable (either in


Sr. No.


NO or NC) auxiliary contacts over and

above those required for breaker

operation/annunciation have been

provided or not.


Sr. No.


34 Current carrying capacity of auxiliary

switches.

35 No. of breaker operations necessary

before inspection & maintenance of

a) Switching rated load

b) Fault at 100% capacity

c) Faults at 50% capacity

d) Making under fault conditions

36 Accessibility of line connection

Whether terminals suitable with

isolated phase bus ducts

Heat dissipation at normal current

(KW)

Minimum value for pickup current for

i) Closing coil

ii) Tripping coil

37 Schematic control diagram of circuit

breaker enclosed

38 Are the following items supplied with

the breaker enclosure

39 Current transformers(CTs)


Sr. No.


a) No. of CTs provided with cores on

generator side of breaker

b) Technical particulars of C.Ts

40 Voltage transformers(VTs)

a) No. of VTs provided with cores on


b)No. of VTs provided with cores on L.V

side Gen-transformer(GT) side of

breaker

c) Technical particulars of V.Ts

41 Surge Capacitor

a) No. of Surge Capacitor provided on


b) No. of Surge Capacitor provided on

L.V side GT side of breaker

c) Technical particulars of Surge

Capacitor

42 Surge Arrestor

a) No. of Surge Arrestor

b) Technical particulars

42 Disconnector switch between breaker


Sr. No.


& LV side of GT

a) No.


43 Earthing Switches(ES)

a) No.



1.3 Isolated Phase Bus DuctSr. No.


1. Make *

2. Applicable standard *

3. Voltage rating of bus duct KV *

4. Rated current of main bus duct KA *

5. Three second short circuit current rating

a) Main KA

b) Tap-off KA

6. Momentary Overcurrent

a) Main KA *

b) Tap-off KA *

7. Degree of protection *

8. Thickness of the

a) Conductor mm *

b) Enclosure mm *

9. Losses in the

a) Conductor KW/m

b) Enclosure KW/m

10. Type of cooling *

11. Disconnecting links *

12. Material of conductor *

13. Material of enclosure *


Sr. No.


14.Temperature rise while operating at rated continuous current at ambient temp. of 500C

a) Conductor (hot spot) *

b) Enclosure (hot spot) *

15.Creepage distance for Insulators & bushing

16. Voltage transformer

a) Accuracy class *

b) Rated voltage factor *

17.Type of insulation for current transformer and neutral grounding transformer.

18. Duty rating

a) Neutral grounding transformer *

b) Neutral grounding resistor *


1.4 Gas Turbine Generator Transformers


Sr. No.


1 Transformer applications Step up

2 Type & make As per vendor list

3 Applicable standard As per IS/EDF std.

4 Quantity No(s). 2

5 Full load rating (ONAN/ONAF) MVA 90

6 Rating of each windings MVA 72/90

7 Rating no load voltage HV/LV kV 11/95

8 Rating of different cooling methods ONAN/ONAF

9 Impedance value % 12

10 Rated frequency Hz 50

11 Winding connection of different windings and vector group

Ynd11

12 System Earthing (HVLV) HV

13 Type of tap changer off circuit/on load OCTC

14 Full power tapping provided Yes/No Yes

15 Type of voltage variation (CFVV/VFVV/CBVV)

CFVV

16 Over fluxing capability For Over fluxing Factor 1.1 : Continuous1.25 : 60 Sec1.4 : 10 Sec.

17 Winding insulation type uniformly or non-uniformly insulated

Uniform on LV side & non Uniform on HV side

17.1 HV Non Uniform

17.2 LV Uniform


Sr. No.


18 Highest system voltage kV 95

19 Power frequency withstand voltage of winding

19.1 HV kV rms 200

19.2 LV kV rms 70

20 Standard rated lightning impulse withstand voltage

20.1 HV kV p 650

20.2 LV kV p 170

21 Maximum temperature rise at full load with 100% coolers :

21.1 Oil oC 40

21.2 Winding oC 45

22 Bushing particulars.

22.1 Applicable standard for bushing IS-2099

22.2 Clearance in air HV/LV/Neutral (between phases and phase to earth)

As per tech spec

22.2.1

HV (P-P) mm As per tech spec

22.2.2

HV (P-E) mm As per tech spec

22.2.3

LV (P-P) mm As per tech spec

22.2.4

HV - N mm As per tech spec

22.3 Quantity of oil in oil filled bushing litre To be furnished during detailed engineering

22.4 Creepage distance mm/kV 31


Sr. No.


23 No load loss at 100% rated voltage & frequency

kW

24 Load loss at rated current with 75 deg C

kW

25 Cooler loss at full load kW 5.6(all fans running)

26 Efficiency (0.85 Pf)

26.1 Full load 99.7

26.2 75% load

27 No load current A(approx)

28 Total estimated weight Kgs To be furnished during DE

29 OCTC/OLTC OCTC

29.1 Make As per approved vendor list provided

29.2 Rated Voltage Volts 110KV

29.3 Rated Current Amps 800

29.4 No. of steps 13

29.5 Step Voltage Volts +/- 2.5% at a step of 2.5%

29.6 Time of operation from one step to other for Auto / manual mode

Sec. 5-7

30 Type of axial and radial coil supports for HV/LV

31 No. of cooler banks and capacity of each cooler bank

As per 2X50% requirement

32 Guaranteed No load current *

31.1 When excited from LV side at 100% and 110% rated voltage

Amps *

33 Max. Flux density when rated and 110% rated voltage

Wb/m2 1.7


Sr. No.


34 Vacuum withstand capability main tank, radiators and accessories

mm of Hg

35 Weight

35.1 Core kg To be furnished during detailed engineering

35.2 Net copper wt. HV/LV kg ------do------

35.3 Oil kg ------do------

35.4 Tank, coolers & fittings kg ------do------

35.5 Total kg ------do------

35.6 Untanking weight kg ------do------

36 Cooling fans, oil pumps rating kW ------do------

37 Capability of transformer to remain in operation from hot conditions after failure of forced cooling with full load

minutes ------do------

38 On-line dissolved Gas Analyser Provided?

Yes/No no

39 Fibre optic based direct hot spot temperature measurement System Provided?

Yes/No no


1.5 Steam Turbine Generator Transformers


Sr. No.


1 Transformer applications Step up



4 Quantity No(s). 1








Ynd11

12 System Earthing (HVLV) HV

13 Type of tap changer off circuit/on load OCTC



CFVV



17.1 HV Non Uniform

17.2 LV Uniform


Sr. No.




19.1 HV kV rms 200

19.2 LV kV rms 70


20.1 HV kV p 650

20.2 LV kV p 170


21.1 Oil oC 40

21.2 Winding oC 45




As per tech spec

22.2.1


22.2.2


22.2.3


22.2.4





Sr. No.



kW


kW

25 Cooler loss at full load kW 5.6


26.1 Full load 99.75

26.2 75% load


28 Total estimated weight Kgs

29 OCTC/OLTC OCTC


29.2 Rated Voltage Volts 110





Sec. 5-7


*


2X50% as per requirement



Amps *


Wb/m2 1.71


Sr. No.



mm of Hg *

35 Weight



35.3 Oil kg ------do------


35.5 Total kg ------do------






Yes/No no


Yes/No no


1.6 Distribution Transformers


Sr. No.


1 Transformer applications Distribution


3 Applicable standard *

4 Quantity No(s). 3








YNYnO

12 System Earthing (HVLV) Both

13 Type of tap changer off circuit/on load OLTC



CFVV



17.1 HV Non Uniform

17.2 LV Uniform


Sr. No.




19.1 HV kV rms 185

19.2 LV kV rms 70


20.1 HV kV p 650

20.2 LV kV p 200


21.1 Oil oC 40

21.2 Winding oC 45




As per tech spec

22.2.1


22.2.2


22.2.3


22.2.4





Sr. No.



kW


kW

25 Cooler loss at full load kW


26.1 Full load

26.2 75% load


28 Total estimated weight Kgs

29 OCTC/OLTC OCTC


29.2 Rated Voltage Volts 110KV





Sec. 5-7


*


2X50% as per requirement



Amps *


Wb/m2 1.71


Sr. No.



mm of Hg *

35 Weight



35.3 Oil kg ------do------


35.5 Total kg ------do------






Yes/No no


Yes/No no


1.7 Unit Auxiliary Transformer



1 Transformer applications Auxiliary


3 Applicable standard As per IS/EDF standards

4 Quantity No(s). 2


6 Rating of each windings MVA 10

7 Rating no load voltage HV/LV kV 11/6.9





Dyn1

12 System Earthing (HVLV) LV




CFVV



17.1 HV Non Uniform

17.2 LV Uniform





19.1 HV kV rms 20

19.2 LV kV rms 2


20.1 HV kV p 50

20.2 LV kV p 24


21.1 Oil oC 55

21.2 Winding oC 45




As per IEC/EDF spec

22.2.1 HV (P-P) mm As per IEC/EDF spec

22.2.2 HV (P-E) mm As per IEC/EDF spec

22.2.3 LV (P-P) mm As per IEC/EDF spec

22.2.4 HV - N mm As per tech spec




kW 12 KW


kW



25 Cooler loss at full load kW 2 KW



26.2 75% load 99.57


28 Total estimated weight Kgs To be decided during DE

29 OCTC/OLTC OLTC


29.2 Rated Voltage Volts

29.3 Rated Current Amps

29.4 No. of steps

29.5 Step Voltage Volts


Sec. *


*




Amps *


Wb/m2 *


mm of Hg *

35 Weight





35.3 Oil kg ------do------


35.5 Total kg ------do------






Yes/No no


Yes/No no


1.8 Unit Station Transformer/Station Service Transformer



1 Transformer applications Auxiliary



4 Quantity No(s). 4

5 Full load rating (ONAN/ONAF) MVA 2.5

6 Rating of each windings MVA 2.5

7 Rating no load voltage HV/LV kV 6.6/0.433

8 Rating of different cooling methods ONAN

9 Impedance value % 7.2



Dyn11

12 System Earthing (HVLV) LV




CFVV



17.1 HV Non Uniform

17.2 LV Uniform





19.1 HV kV rms 20

19.2 LV kV rms 2


20.1 HV kV p 50

20.2 LV kV p 24


21.1 Oil oC 55

21.2 Winding oC 45




As per IEC/EDF spec

22.2.1 HV (P-P) mm As per IEC/EDF spec

22.2.2 HV (P-E) mm As per IEC/EDF spec

22.2.3 LV (P-P) mm As per IEC/EDF spec

22.2.4 HV - N mm As per tech spec




kW 2.5

24 Load loss at rated current with 75 deg kW 23



C



25 Cooler loss at full load kW



26.2 75% load 98.99


28 Total estimated weight Kgs 7150

29 OCTC/OLTC OLTC


29.2 Rated Voltage Volts

29.3 Rated Current Amps

29.4 No. of steps

29.5 Step Voltage Volts


Sec. *


*




Amps *


Wb/m2 *


mm of Hg *

35 Weight





35.3 Oil kg ------do------


35.5 Total kg ------do------






Yes/No no


Yes/No no


1.6 High Medium Voltage Switchgear


Sr. No.


1 Manufacturer’s name As per approved vendor list provided

2 Applicable Standard As per IS/EDF

3 Nominal system voltage, phase & frequency

33 ± 10%, Three, 50 Hz ± 5%

4 System neutral earthing considered earthed

5 Max. system voltage V 36

6 One minute power frequency withstand voltage

1.2/50 uS impulse withstand voltage

kV rms

k V peak

70

170

7 Switching over voltages generated and time to crest

kV p / microsec

a) Switching off motor with its rotor locked

To be furnished during detailed engineering

b) Switching off unloaded transformer *

8 Ref. ambient temperature Deg. C 50°C

9 S. C. Current withstand capability (current / duration)

a) Short time for 1 sec kA rms 31.5

b) Dynamic rating kA peak 2.5 x rated short time current

10 Cable entry From bottom

11 Bus bar As per Sld

a) Material As per Sld

b) Continuous current rating A As per Sld

c) Max. temp. of bus bars, dropper, Deg. C To be furnished during detailed engineering


Sr. No.


connectors & contacts at continuous current rating under site reference ambient temperature.


Sr. No.


12 Thickness of sheet steel enclosures/doors.

mm 2/2.5 CRCA

a) Cold rolled 2

b) Hot rolled 2.5

13 Degree of protection

a) Bus Bar IPH4

b) For others IPH6

c) For complete switchgear IP4X

14 Paint shade RAL7032

15 Earthing bus bar size & material considered

50X6mm,Copper

16 Clearance in air of live faults

a) Phase to phase Mm As per IEC/EDF Standards

b) Phase to earth mm As per IEC/EDF Standards

17 Circuit breakers

a) Manufacturer As per approved vendor list provided

b) Type of circuit breaker Vacuum

c) Rated operating duty Continuous(O -3m -CO -3m – CO)

d) Rated currents under site ambient temp.(for each type of breaker)

To be furnished during detailed engineering

e) Rated symmetrical breaking current kA rms As per IEC/EDF Standards

f) Making current kA peak As per IEC/EDF Standards

g) S.C current withstand & duration

Short time for 1 sec kA rms 31.5


Sr. No.


Dynamic rating kA peak 2.5 x rated short time current

h) Asymmetrical breaking current

AC component As per IEC/EDF Standards

DC component As per IEC/EDF Standards

t) Operating time

Opening time Cycles Not more than 60

Closing time Cycles Not more than 100

j) Closing & Opening coil particulars Two trip coils

k) Switching over voltage As per IEC/EDF Standards

l) Trip free operating mechanism type Spring charged motor

m) Aux. control voltage for trip, close, annunciation & spring charging

Close- 220V DC, 2W (+10% to –15%)

Trip-220V DC, 2W (+10% to –30%)

Spring-220V DC, 2W (+10% to –15%)

n) Aux. control voltage for space heater, DC failure annunciation, motor winding/ space heaters, lighting etc

240V ± 10%, 1 Ph, 2W

p) Breakers application

Transformer control YES

Motor control NO

q) Type of external switching over-voltage limiting device provided

19 CTs To be furnished during detailed engineering

a) Type *

b) Ratio

c) Burden *


Sr. No.


d) Accuracy class *

e) Knee point Voltage

f) Magnetising current @ Vk/2

g) Secondary resistance

h) Class of Insulation

i) Short time & Dynamic current rating

j) Applicable Standard

k) No. of Cores

20 Details of CBCTs To be furnished during detailed engineering

21 VTs

a) Type *

b) Ratio

c) Burden

d) Acuracy class

e) Magnetising Characterstics

f) Method of connection

g) Class of Insulation

h) Rated Voltage factor (Continuous & 08 hours)

i) Applicable Standard

j) No. of Cores

22 Earthing arrangement for

a) Bus bar side *


Sr. No.


b) Cable side *

24 Details of LA/SA

25 Particulars of Breaker handling Tools

27 Particulars of meters

28 Particulars of Relays

29 Particulars of Spring charging motor

30 Panel construction details


1.7 Low Voltage switchgear


Sr. No.


1 Manufacturer's name As per approved vendor list

2 Applicable Standard As per IEC/French standards

3 Nominal system voltage, phase &

frequency

V 6600± 10%

4 System neutral earthing considered Three5 Maximum system voltage V 6900

5.1 One minute power frequency

withstand voltage

kV rms 20 kV ( r.m.s)

5.2 1.2/50 µSec impulse withstand voltage kV peak 60 kV ( peak)6 Short Circuit withstand capability

6.1 Short time for 1 sec kA rms 40 kA6.2 Dynamic rating kA peak 100 kA7 Reference ambient temperature Deg. C 50°C

8 Continuous current rating under site

reference ambient condition

A As per SLD

9 Maximum temperature of Bus Bars,

dropper, connectors & contacts at

continuous current rating under site

reference ambient temperature

Deg. C 40ºC for plain joints

50ºC for Silver plated joints

10 Material of bus bars considered Copper

11 Cable entry a) Power Cables-Bottom

b) Control Cables- Bottom12 Degree of protection

13 Thickness of sheet steel

enclosures/doors

13.1 Cold Rolled mm 2

13.2 Hot Rolled mm 2.5

14 Shape of paints

15 Earthing bus bar size & material

considered

mm 150X12mm2 copper


Sr. No.


16 Clearance in air of live parts As per IEC/French Standards

16.1 phase to phase mm As per IEC/French Standards

16.2 phase to earth mm As per IEC/French Standards

17 Circuit Breaker

a) type Vaccum / SF6b) rated operating duty 0-3-CO-3-COc) rated current at site reference ambient

temp.

Amps 1600

d) rated breaking current kA rms As per IEC/French Standards

e) rated making current kA rms As per IEC/French Standards

f) short time current withstand capacity

for 1 sec duration

kA peak As per IEC/French Standards

g) asymmetrical breaking current

1) ac component kA rms As per IEC/French Standards

2) dc component kA rms As per IEC/French Standards

h) operating time

1) opening time sec Not more than 60 2) closing time sec Not more than 100i) closing and opening coil particulars cycle

j) switching over voltage factor As per IEC/French Standards

18 Trip free operating mechanism type Motor wound spring charged

stored energy

19 Auxilary control voltage for trip,

close, annunciation & spring charging

220 V DC (85%-110%)

20 Auxilary control voltage for space

heater, DC failure annunciation, motor

winding/space heaters, lighting etc

220 V DC (85%-110%)

21 Breaker application

a) incomers & ties As per requirement

b) outgoing As per requirement


Sr. No.


22 Details of contractors/switches/fuses

a) type Cast resin bar primary

b) rated operating duty

c) rated current at site reference

ambient temp.

d) rated breaking current As per IEC/French Standards

e) rated making current As per IEC/French Standards

f) short time current withstand

capacity for 1 sec duration

As per IEC/French Standards

g) asymmetrical breaking current As per IEC/French Standards

1) ac component

2) dc component

h) operating time

1) opening time

2) closing time

23 Details of CTs To be furnished during detailed

engineering

a) type

b) ratio

c) burden

d) accuracy class

e) knee point voltage

f) magnetizing current at Vk/2

g) secondary resistance

h) class of insulation

i) short time & dynamic current rating

j) applicable standard

k) no. of cores 3

24 Details of VTs To be furnished during detailed

engineering


Sr. No.


a) type

b) ratio

c) burden

d) accuracy class

e) magnetizing characteristic

f) method of connection

g) class of insulation

h) rated voltage factor (continuous & 8

hours)

i) applicable standard

j) no of cores

25 Particulars of meters

26 Particulars of relays

27 Panel construction details


1.8 Motor


Sr. No.


AC Motor

1.0 Application/Designation

2.0 Name of the Manufacturer As per approved vendor list

provided

3.0 Type of motors/ frame size Squirrel cage three/single phase

induction

4.0 Rated

4.1 Output kW 0.22,160-4000

4.2 Speed rpm 3000

4.3 Voltage V 230/400,6.6

4.4 No.of Phases / Frequency 3/1,50Hz

4.5 System neutral As per requirement

5.0 Type of Duty As per IEC/French Standards

5.1 Type of Duty (IS-325 or equivalent) As per IEC/French Standards

5.2 Duty designation (IS-325 or

equivalent)

As per IEC/French Standards

6.0 Supply Conditions

6.1 (a) Allowable variations in

6.2 Voltage % ± 10%

6.3 Frequency % ± 5%

6.4 Combined % 10% (absolute sum) + frequency

6.5 Permissible unbalance in supply

voltage

% 80

7.0 Current To be furnished during DE

7.1 Full load Amps To be furnished during DE

7.2 Starting % FL To be furnished during DE

8.0 Method of starting To be furnished during DE

8.1 Starting time Sec To be furnished during DE


Sr. No.


8.1.1 With rated Voltage To be furnished during DE

8.1.2 With min. Voltage To be furnished during DE

8.1.3 With Max. Voltage To be furnished during DE

8.2 Safe stall time under hot/cold

condition

Sec To be furnished during DE

8.2.1 With rated Voltage To be furnished during DE

8.2.2 With min. Voltage To be furnished during DE

8.2.3 With Max. Voltage To be furnished during DE

9.0 Insulation To be furnished during DE

9.1 Class of insulation To be furnished during DE

9.2 Temperature rise by winding

resistance method

Deg. C To be furnished during DE

10.0 Type of cooling (IS : 6362) Deg. C To be furnished during DE

11.0 Degree of protection (IS:4691 or

equivalent)

To be furnished during DE

12.0 Suitable for outdoor operation Yes / No To be furnished during DE

13.0 Normal winding connection Star /

Delta


14.0 Permissible No. of equally spread

starts per hour under normal service

conditions


15.0 Efficiency (%) % To be furnished during DE

15.1 Full load To be furnished during DE

15.2 75 % Load To be furnished during DE




Sr. No.


16.0 Power Factor

16.1 Full Load

16.2 75 % Load

16.3 50 % Load

16.4 25 % Load

17.0 Torque To be furnished during DE

17.1 Starting To be furnished during DE

17.2 Maximum (Pullout) To be furnished during DE

17.3 Pull up To be furnished during DE

18.0 Motor reactance (pu) To be furnished during DE

18.1 Subtransient To be furnished during DE

18.2 Transient To be furnished during DE

18.3 Steady state To be furnished during DE

19.0 Fault level kA/sec

DC MOTORS

1.0 Rated Voltage V 125

2.0 Class of Insulation As per IEC/EDF

3.0 Temperature rise *

4.0 Method of starting *

Items under AC motors which are applicable for DC motors shall also be listed


1.9 Diesel Generator Set


Sr. No.


1.0 Diesel Engine – General Data

1.1 Manufacturer’s name, make, model number

As per approved vendor list provided

1.2 Standard rating at ISO conditions KW 1.6

1.3 De-rating factors due to:

1.3.1 Harmonics %

1.3.2 Altitude %

1.3.3 Inlet air temperature %

1.3.4 Humidity %

1.3.5 Cooling water temperature %

1.3.6 Overall de-rating factor (max. 10%) %

1.4 Conditions output at site conditions KW

1.5 Maximum engine rating at site conditions with 10% overload

KW

1.6 Number of cylinders

1.7 Arrangement of cylinders

1.8 Direction of rotation as viewed from free end

1.9 Operating speed RPM Not more than 750

1.10 Number of strokes 4

1.11 Piston speed M/sec

1.12 Minimum acceptable lube oil temperature at start-up

0C

1.13 Maximum period for which the engine can operate without cooling water supply

Min


Sr. No.


1.14 Foundation bolts and anti vibration pads to be provided

Yes

2.0 Turbo charger / Super charged

2.1 Manufacturer

2.2 Speed RPM

3.0 Fuel oil system

3.1 Day tank *

3.2 Number of days tanks *

3.3 Capacity-Each Litres *

3.4 Material of construction

3.5 Thickness of shell

3.6 Hand operated fuel oil pump provided *

3.7 Filters

3.8 Type

3.9 Number

4.0 Lube oil system

4.1 Filters *

4.1.1 Type *

4.1.2 Number

4.1.3 Grade of lube oil to be used

4.2 AC/DC motor driven standby pump, if any, to be included

4.3 AC motor driven primary oil pump with Clock timer


Sr. No.


5.0 Engine cooling system

5.1 Cooling water/make-up water quality acceptable

*

5.1.1 If no, indicate requirement

5.2 Cooling water flow rate

5.2.1 Engine cooling circuit LPM

5.2.2 Lube oil cooler LPM

5.2.3 Turbocharger cooler LPM

5.2.4 Total 5.2.1 to 5.2.3 LPM

5.3 Expansion tank

5.3.1 Capacity Litres

5.3.2 Material of construction

5.3.3 Thickness Mm

5.4 By-pass control valves to be included *

5.5 Temperature of cooling water

5.5.1 At engine inlet 0C

5.5.2 At engine outlet 0C

6.0 Air intake and exhaust

6.1 Intake filter type *

6.2 Exhaust silencer type *

6.3 Maximum back pressure mmWc

7.0 Stack

7.1 Flow rate of flue gases leaving DG M3/Hr


Sr. No.


7.2 Temperature of flue gas leaving DG set/entering stack

0C

7.3 Density of flue gases at stack inlet Kg/ M3

7.4 Stack diameter x height M

7.5 Number of flue gas openings

7.6 Flue gas connection size M

7.7 Height of flue gas connection centre-line above the foundation level

M

8.0 Heat exchangers

8.1 Type of construction

8.2 Shell side

8.2.1 Flow rate of fluid circulated

8.2.2 Inlet/Outlet temperature 0C

8.3 Type side

8.3.1 Fluid circulated Cooling water

8.3.2 Flow rate of fluid circulated Kg/Hr

8.3.3 Inlet/Outlet temperature 0C

8.4 Material specification

8.4.1 Shell/frame (for plate type)

8.4.2 Tubes/plates (for plate type)

8.4.3 Tube sheets/end plate (for plate type)

8.5 Bolts/Nuts

8.6 Gaskets


Sr. No.


8.7 Radiator

8.7.1 Material of construction

8.7.2 Fan motor rating KW

9.0 Generator and accessories

9.1 Manufacturer’s Name

9.2 Design rating KW

9.3 Continuous output rating KW

9.3.1 Nominal ISO rating KW

8.3.2 Maximum rating at site KW

9.3.3 De-rated output under harmonic loading

KW

9.4 Power factor

9.5 Rated voltage V

9.6 Rated current / Phase Amps

9.7 Speed RPM

9.8 Frequency Hz

9.9 Field current at rated output and voltage Amps

9.10 Insulation class

9.10.1 Stator

9.10.2 Rotor

9.11 Temperature rise above ambient of 500

(By thermometer)

9.11.1 Stator 0C

9.11.2 Rotor 0C


Sr. No.


9.11.3 Cores 0C

9.12 Moment of inertia of rotating mass in diesel engine, generator, exciter etc.,

Kg/M2

9.13 Efficiency

9.13.1 50% load / 75% load / Full load % / /

9.14 Largest motor allowed to start within 15% maximum allowable starting voltage DIP

KW

9.14.1 With DOL starter/Star delta starter

9.15 KW rating of space heaters KW

9.16 Transient reactances

9.16.1 X’d %

9.16.2 X” d %

9.17 Degree of protection

10.0 Main exciter

10.1 Rated voltage

10.2 Rated current

10.3 Ceiling voltage at zero load and rated speed

V

10.4 Ceiling voltage at rated current and rated speed

V

10.5 Excitation system response ratio

10.6 Insulation class

10.6.1 Stator

10.6.2 Rotor


Sr. No.


11.0 Automatic voltage regulator

11.1 Type

11.2 Burden of AVR on CTs and PTs

11.2.1 CT’s VA

11.2.2 PT’s VA

11.3 Dead band, if any

11.4 Field discharge resistor Ohms

11.5 Type and rating of field breaker

12.0 Performance guarantees

12.1 Continuous output at site conditions KW *

12.2 10% overload for one(1) hour out of a total of 12 consecutive hours of operation without over heating

KW *

12.3 Fuel oil consumption at 50%, 75% and full load

Gms/KWHr *

12.4 Lube oil consumption Gms/KWHr

12.5 Cooling water temperature at

Engine

Outlet 0C

*

12.6 Cooling water pressure drop Kg/cm2

12.7 Noise level dB(A)

13.0 Weight schedu1e

13.1 Weight of engine and standard accessories excluding the weight of flywheel

Kg


Sr. No.


13.2 Weight of flywheel Kg

13.3 Total shipping weight Kg

13.3.1 Weight of generator Kg

13.3.2 Weight of control panel Kg

13.4 Weight of single heaviest piece to be handled during :

13.4.1 Erection Kg

13.4.2 Maintenance Kg

14.0 Dimensions

14.1 Shipping dimensions *

14.1.1 Engine L x B x H M

14.1.2 Generator L x B x H M

15.0 Miscellaneous

15.1 General arrangement drawing to be enclosed

*

15.2 P&I diagram to be enclosed *

15.3 Total heat dissipation from DG set Kcal/Her

15.4 Ventilation requirements to be enclosed *

15.5 Synchronising scheme as per requirement

*

15.6 Protection scheme to be enclosed *

15.7 Suitability of operation for the load

Pattern assumed

*

16.0 CODES & STANDARDS


Sr. No.


16.1 BS-5514/ISO-3046 Specification for reciprocating internal combustion engine (Part (I-VI)

*

*

16.2 BS-5000 : Part 99 – Machines for miscellaneous application

*

16.3 IS-4722 – Rotary electrical machinery *

16.4 VDI – 2063 : Measurement and evaluation of mechanical vibrations of reciprocating piston engines and piston compressors


1.10 DC Battery and Battery ChargerSr. No.


1.0 Name of the Manufacturer (Ni-Cd

battery)

As per approved vendor list

provided

1.1 Application DC load requirements

1.2 No. of battery Bank required . Nos To be furnished during DE

1.3 Reference ambient temperature for

design of electrical devices

0C 50

1.4 DC system voltage V 220

1.5 Ampere hour capacity of battery at27

deg. C temperature for 5 HOURS rate

Ah 1350 AH

1.6 Discharge duty considered for battery

sizing

1.7 a) Required area of battery and

charger room

b) Battery orientation/ mounting

arrangement

a)To be furnished during DE

b)Steel Rack

1.8 Charging method proposed Float-cum-boost charger

1.9 Battery charger rating required to

charge the battery in 10 hrs from

fully discharged conditions (both

Voltage and current range to be

specified).

2.15 to 2.25 Volts per cell

1.10 No. of cells per set To be furnished during DE

1.11 Open circuit voltage of each cell

1.12 Capacity factor considered for

battery sizing

*

1.13 The details of de-rating factor

considered for temperature correction,

*


Sr. No.


ageing, future margin considered

( min. 10 %) and any

other required as per relevant

standard


Sr. No.


1.14 Type of enclosure *

1.15 Type of battery cell *

1.16 Life of the battery Hour *

1.17 No. of full charge-discharge cycles in

a life

Nos. *

1.18 Recommended charging and

discharging rate

Normal operation

Quick charging

First charging

*

2.0 BATTERY CHARGER

2.1 Number of charger required Nos. To be furnished during DE

2.2 Type Solid-state (thyristor based), full wave, fully

controlled (6 pulse), three phase bridge for

continuous application

2.3 DC system voltage (nominal) Volts 230-240 Volt

2.4 DC system earthing ungrounded

2.5 Ambient design temperature Deg.C 50ºC

2.6 DC bus load considered with break up

a) Short time loadb) Continuous loadc) Starting current of largest

connected DC motor

Amp

For sec

2.7 Battery charger current and voltage rating

Float


Sr. No.


Boost

2.8 Float/Trickle charging current of battery

*

2.9 Maximum Boost charging current of battery

Max. Boost charging voltage battery

Amp

Volt

*

2.10 Max. time for Boost charging of battery

Hours *

2.11 AC system data

Supply 415V, 3phase, 50Hz, 4wire

Variation in supply % Voltage variation-10%

Frequency variation-5%

Short circuit level kA 50 kA(rms) symmetrical

Type of earthing Solidly earthed

2.12 Performance

DC voltage setting adjustment for float charger

% 1

Maximum permissible variation in DC voltage (No load to full load)

% Within 1% of the set value

DC voltage setting adjustment for boost charging at constant voltage

1

DC volt adjustment for boost charging

*

Minimum permissible power factor at rated continuous load

*


Sr. No.


2.13 Voltage stabilisation for constant voltage regulator

% *

2.14 Cable entry *

2.15 Permissible ripple content at rated continuous load

Without battery % 1

with battery % 1

2.16 Peak inverse voltage of power devices

v *

2.17 Thyristor bridge cooling *


1.11 UPS


Sr. No.



provided

1.1 Type Ni-Cd

1.2 Power Rating at load PF 0.8 lagging As per tech specs

1.3 Application Critical Power supply

1.4 Quantity (Nos.) 1

1.5 Method of energy storage Static

1.6 Designation *

1.7 Whether transfer switch required for

secondary back up

Yes

1.8 Installation

1.9 Temperature

1.9.1 Ambient

For Operation 0C 50

For Storage 0C 50

1.9.2 Ref. Design Temp. 0C *

2.0 Enclosure Sheet steel, IP42

2.1 Material

2.2 Sheet thickness mm *

2.3 Degree of Protection as per IS-247 IP32

2.4 Painting

Exterior To be decided during DE

Interior To be decided during DE


Sr. No.


2.5 Cable entry From bottom

2.6 Acoustic noise level As per IEC/EDF standards

3.0 UPS system

3.1 Input 190-302

3.1.1 Supply voltage with 230

Isolation transformer.

3.1.2 Allowable variation

Voltage % 10%

Frequency % 5%

Combined voltage + Frequency %

3.2 Output

3.2.1 Output voltage 230

3.2.2 AC voltage accuracy (Steady state)

over entire load, load PF & DC

voltage range

% 2%

3.2.3 Transient voltage regulation +/-2

3.2.4 Transient Recovery 50msec

3.2.5 Voltage wave form

3.2.6 Range of adjustment of AC output

voltage

50+_ 0.5 Hz to 50+_ 2 Hz

3.2.7 AC harmonic content 3% maximum

3.2.8 Nominal frequency 50 Hz

3.2.9 Frequency regulation 5%


Sr. No.



Sr. No.


4.0 DC Link (Battery)

4.1 No. of 100% capacity batteries 2X100

4.2 Type of battery cell Lead Acid Plante/ stationary Nickel Cadmium type

4.3 DC link voltage *

4.4 DC voltage variation range *

4.5 Battery support time 1 hour

4.6 Mounting arrangement Steel racks

5.0 Battery Charger

(Rectifier Unit)

5.1 No. of chargers 2X100%

5.2 Rectifier Unit Full wave

5.3 Type Solid-state, full wave fully controlled. 3Phase Bridge.

5.4 Parallel operation

5.5 Recharge time on boost charge 5hrs

5.6 In rush current

5.7 Battery parallel operation

6.0 Inverter

6.1 No. of inverters in system To be decided during DE

6.2 Type of power switching device Static, Parallel Dual Redundant

6.3 Current capacity

6.3.1 Over load 125% of rated KVA & p.f for 10 minutes

6.3.2 Short time withstand 500% for 5 msec


Sr. No.


6.3.3 Over current setting range

6.3.4 Synchronising

- Between inverters yes

- Between inverters and standby

supply

yes

6.4 Synchronising range To be decided during DE

7.0 Static Switch

7.1 Type Solid-state, SCR

7.2 No. of switches To be decided during DE

7.3 Rating To be decided during DE

7.4 Nominal Frequency 50Hz

7.5 Maximum transfer time 1/4th cycle maximum.7.6 Short time rating 50KA

7.7 Whether make before break Yes

8.0 Static voltage stabilizer with step-

down transformers.

8.1 Input.

8.1.1 Input voltage

8.1.2 Allowable variation

Voltage *

Frequency *

8.2 Output

8.2.1 Out put voltage *

8.2.2 Out put voltage accuracy % *


Sr. No.


8.3 Over load *

9.0 Redundant A.C. Distribution board

with required No. of feeders along

with 20% spare feeders, adequate

protection & meeting.

10.0 Ground detector system *

11.0 Manual Bypass switch & isolators. *


1.12 Illumination

Sr. No.


1.0 Make of light fittingsAs per approved vendor list

provided

2.0 Make of main DBAs per approved vendor list

provided

3.0 Make of sub-lighting DBAs per approved vendor list

provided

4.0Type of fitting for periphery lighting and control for same

5.0 Cable laying method As per IEC/EDF standards

6.0 Control operations: Continuous

7.0 Escape lighting

8.0 Type of cable proposed As per IEC/EDF standards

9.0 Make of light fittings As per approved vendor list provided

10.0 Make of cables As per approved vendor list provided

11.0 Type of fittings at various locations As per IEC/EDF standards

12.0DC emergency lighting control board with necessary contactor.

Yes

13.0Type of incomer for main and sub-DBs.

As per IEC/EDF standards

14.0 Type of outgoing for main and sub- As per IEC/EDF standards


Sr. No.


DBs


Sr. No.


15.0Second source of supply considered for all the areas

a)Degree of protection for main and sub-DB enclosure:


b)Mounting details for DBs: As per IEC/EDF standards

16.0Phase to phase and phase to earth clearances in main and sub-DBs:


17.0 Busbar arrangement in Sub-DBs:

18.0 Make of ballastAs per approved vendor list

provided

19 Make of cables …………….do………….

20 Make of switches …………….do………….

21Erection accessories such as junction boxes, clamps, saddles

…………….do………….

22 Make of ceiling fans …………….do………….

23 Make of exhaust fans …………….do………….

24Make of flame-proof fittings and catalogue numbers

…………….do………….

25 Rating of exhaust fans To be decided during DE

26Deviations, if any, on technical design data:

*

27 Make of switchesAs per approved vendor list

provided

28Erection accessories such as junction boxes, clamps, saddles



For Outdoor Lighting

Sr. No.


1.0 Type of fittings envisaged:As per approved vendor list

provided

2.0 Make of fittings: …………….do………….

3.0 Lux level to be obtained: *

4.0 Provision of escape lighting:

5.0 Location of main and sub-DBs *

6.0 Control of lighting: *

7.0 Automatic / Manual:

8.0 Cable laying above ground:

9.0 Type of fittings envisaged: *

10.0 Make of fittings: *

11.0 Lux level to be obtained: *


1.13 Switchyard



1.0 RATING

1.0 Switchyard Design & layout

1.1 Rated Voltage kV 90

1.2 1.2/50 Micro sec impulse withstand voltage

kV *

1.3 One minute power frequency withstand voltage

kV *

1.4 Current ratings *

a) Continuous for Main buses Amp 2000 Amps

b) Phase to phase Amp -

c) Short time withstand current and duration

kA &sec 40kA for 1 sec

1.5 Minimum air clearance

a) Phase to phase mm 900 mm

b) Phase to ground mm 900 mm

c) Live point to ground mm 4600 mm

d) Section clearance mm 4600 mm

1.6 Bay width M 10

1.7 Phase to phase spacing M 2.5

1.8 Size of the i) switchyard L x B 136x90

ii) switchyard building L x B x H 136x90x15

1.9 Design tensions


a) Main bus Kg To be furnished during detail engineering

b) Bay bus Kg To be furnished during detail engineering

a) Overhead conductors for GT connection

Kg To be furnished during detail engineering

1.10 Total creepage distance for all equipment

Indoor

Out door

mm

Ref-31mm/KV

1.11 Protected creepage distance mm Ref-31mm/KV

1.12 Factor of safety adopted for the structural design

a) Normal condition To be furnished during detail engineering

b) Short circuit condition To be furnished during detail engineering

c) Seismic condition To be furnished during detail engineering

1.13 Type of design for Main & bay buses

a) Strung bus or tubular bus To be furnished during detail engineering

b) Material To be furnished during detail engineering

2.0 Circuit Breakers


2.1 Make, type, country of manufacture


2.2 Applicable standard As per IEC/EDF Standards

2.3 Rated voltage kV As per IEC/EDF Standards

2.4 Type of circuit breaker (SF6) SF6

2.5 Reference ambient temperature 500C

2.6 Rated continuous current Amp 1600Amps

2.7 Rated short circuit breaking current and rated making current

kA 40 KA for 1 sec

100 KA(peak)

2.8 Temperature rise of contacts over an ambient of 450C while carrying rated current

0C As per IEC/EDF Standards

2.9 Rated operating duty 0-0.3 sec-C0-3mins-CO

2.10 Total break time msec To be furnished during detail engineering

2.11 Total make time msec To be furnished during detail engineering

2.12 Rated transient recovery voltage for terminal fault

kV To be furnished during detail engineering

2.13 Rated transient recovery voltage for short line faults


2.14 No. of breaks in series To be furnished during detail engineering

2.15 Insulation level

a) One minute P.F. withstand voltage

kV 185


b) Impulse withstand voltage kVp 450

c) Switching surge withstand voltage

kVp To be furnished during detail engineering

2.16 Minimum clearance in air

a) Between live parts mm Ref-SLD

b) Between live part & earth mm Ref-SLD

c) Centre to centre distance between phases

mm Ref-SLD

2.17 Fixed trip or trip free To be finalised during detail engineering

2.18 Type of operating mechanism Spring-spring

2.19 Normal method of tripping To be furnished during detail engineering

2.20 Emergency method of tripping To be furnished during detail engineering

2.21 No. of trip coils per phase 125 V DC

2.22 Range of voltage for

(a) Trip coils To be furnished during detail engineering

(b) Closing coils To be furnished during detail engineering

2.23 Rated line charging current To be furnished during detail engineering

2.24 Rated cable charging current To be furnished during detail engineering


2.25 Maximum over voltage when switching off

(a) Unloaded transformer To be furnished during detail engineering

(b) Unloaded lines To be furnished during detail engineering

(c) Cable charging To be furnished during detail engineering

(d) Capacitor banks To be furnished during detail engineering

2.26 When switching off a synchronous system

(a) Maximum current kA To be furnished during detail engineering

(b) Maximum recovery voltage between contacts

kA To be furnished during detail engineering

2.27 No. of operating circuit breaker can perform without inspection, replacement of contacts

(a) At rated breaking current To be furnished during detail engineering

(b) At rated continuous current To be furnished during detail engineering

2.28 Creepage distance for the interrupter insulator

mm 31 mm / KV

2.29 Creepage distance for the interrupter insulator

mm 31 mm / KV


2.30 Cantilever strength of circuit breaker at the terminal pad

kg To be furnished during detail engineering

2.31 Whether pressure switches for SF6 pressure low alarm, trip, lockout closing, lock out, opening are provided

YES

2.32 Compressed air system details

(a) Type (unit / centralised) To be furnished during detail engineering

(b) Rated pressure To be furnished during detail engineering

(c) Time for the compressor to charge to reservoir from atmospheric pressure

To be furnished during detail engineering

(d)

Time for the compressor to replenish the reservoir from starting pressure to rated pressure


(e)

Number of stored close open operation before lockout pressure is reached


(f) Whether pressure, switches for start, stop of compressor, high, low alarm, close lockout, open lockout, auto reclose lockout provided


3.0 90kV Isolators

3.1 Make, type, and country of manufacture



3.2 Reference standard As per IEC/EDF Standards

3.3 Rated voltage & frequency Volts, Hz 90 KV/50Hz

3.4 Rated current Amp Ref-SLD

3.5 Reference ambient temperature 0C 50

3.6 Short time withstand current & duration

kA. sec 40 KA for 1 sec

3.7 Dynamic withstand current kAp To be furnished during detail engineering

3.8 Maximum temperature rise of current carrying parts

50 0C

3.9 Insulation Test values

(a) One minute P.F. wet withstand voltage

(i) Between poles & earth


(ii) Across isolating distance


(b) Impulse withstand voltage

(i) Between poles & earth

kVp To be furnished during detail engineering

(ii) Across isolating distance kVp To be furnished during detail engineering

3.10 Material

(a) Main contact To be furnished during detail engineering


(b) Arcing contact To be furnished during detail engineering

(c) Current carrying parts To be furnished during detail engineering

3.11 Whether contacts are silver faced YES

3.12 Clearance

(a) Between poles mm To be furnished during detail engineering

(b) Between live parts and earth

mm To be furnished during detail engineering

(c) Between live parts when switch is open


(i) Between same pole mm To be furnished during detail engineering

(ii) Between adjacent pole mm To be furnished during detail engineering

3.13 Phase spacing mm To be furnished during detail engineering

3.14 Type of interlock Both interlock electrically operated

(a) External *

(b) Earth switch *

3.15 Insulators Solid core

(a) Type of insulator (solid core) Horizontal,centre break

(b) Cantilever strength 800 Kg

(c) Total creepage distance 31 mm / KV


(d) Applicable standards As per IEC/EDF Standards

3.16 Operating mechanism(motor/manual)

(a) Main blade Motorized & Manual

(b) Earth blade Motorized & Manual

4.0 90kV Current Transformer

4.1 Make & country of Manufacture As per IEC/EDF Standards

4.2 Applicable standards As per IEC/EDF Standards

4.3 Rated voltage class 90 Kv

4.4 Insulation withstand level 450 KV (peak)

(a) Impulse withstand voltage 1.2/50 microsec wave

kV peak To be furnished during detail engineering

(b) One minute power frequency withstand voltage

kV rms To be furnished during detail engineering

4.5 Number of cores per CT

4.6 Rated secondary current for each core

1.1Core 1 A To be furnished during detail engineering







4.7 Ratio taps for each core

Core 1 To be furnished during detail engineering






4.8 Whether it is possible to adjust tap setting of any core independent of other cores

YES/ NO Yes

4.9 Relaying cores To be furnished during detail engineering

(a) Accuracy class (for 5P20) Shall be 0.2 sec for metering cores

(b) Rated burden (for 5P20) VA To be furnished during detail engineering

(c) Accuracy limit factor (5P20) To be furnished during detail engineering


(d) Minimum knee point voltage VK for PS class

Volts To be furnished during detail engineering

(e) Maximum excitation current at VK, VK/2 Volts (for PS class

mA To be furnished during detail engineering

(f) Maximum secondary resistance (for PS class)


4.10 For metering cores :

a) Accuracy class To be furnished during detail engineering

b) Rated burden To be furnished during detail engineering

c) Rated power factor VA To be furnished during detail engineering

d) Instrument security factor To be furnished during detail engineering

Short time thermal current rating 40 KA for 1 sec.

a) Current kA To be furnished during detail engineering

b) Rated time sec

4.12 Dynamic current rating kA peak 100 KAp

4.13 Maximum temperature rise of windings at rated primary current and rated burden, when referred to specified ambient temperature

ºC To be furnished during detail engineering

4.14 Class of insulation of windings Oil immersed,Class-A

4.15 Radio influence voltage V To be furnished during detail engineering


4.16 Cantilever strength at terminal Kg To be furnished during detail engineering

4.17 Creepage distance of insulator housing

M 31mm/KV

5.0 Voltage Transformer

5.1 Manufacturer and country of manufacture

As per IEC/EDF Standards


5.3 Type of VT As per IEC/EDF Standards

5.4 Insulation withstand level To be furnished during detail engineering

5.4.1 Impulse withstand voltage 1.20/50 micro sec.

kV peak 450 KV (peak)

5.4.2 One minute power frequency withstand voltage

kV rms 185

5.5 Number of secondary windings for each VT

3

5.6 Rated primary voltage kV 90/√3

5.7 Rated secondary voltage V 110/√3

5.8 Rated VA burden for each secondary windings

VA To be furnished during detail engineering

5.9 Rated power factor To be furnished during detail engineering

5.10 Accuracy class for each secondary winding

5.10.1 Winding – 1 To be furnished during detail engineering




5.11 Method of connection To be furnished during detail engineering

5.11.1 Primary winding

5.11.2 Each

(a)

(b)

(c)

secondary winding

Winding – 1

Winding – 2

Winding – 3

NA

5.12 Rated voltage factor 1.2 continuous & 1.5 for 30 sec

5.13 Maximum temperature rise of windings at 110% excitation and rated burden, when referred to specified ambient temperature

ºC As per IEC/EDF Standards

5.14 Class of insulation of windings Oil immersed,Class-A

5.15 Capacitor data To be furnished during detail engineering

5.15.1 High voltage capacitance pF To be furnished during detail engineering

5.15.2 Intermediate voltage capacitance pF To be furnished during detail engineering

5.15.3 Nominal intermediate voltage kV 90/110

5.15.4 Equivalent capacitance for carrier coupling

pF To be furnished during detail engineering


5.15.5 Maximum permissible impedance at power frequency

Ohms To be furnished during detail engineering

5.16 Total creepage distance mm 31mm/KV

5.17 Radio influence voltage Volts To be furnished during detail engineering

5.18 Details of high speed switch(es) on secondary winding (alternative to fuses)


5.18.1 Make, type, rating , coil rating, other technical details

Amp As per IEC/EDF Standards

5.19 Cantilever strength Kg As per IEC/EDF Standards

6.0 Lightning Arresters

6.1 Maker’s Name and Type and country of manufacture

As per IEC/EDF Standard

6.2 Arrester type As per IEC/EDF Standards


6.4 Arrester class kV As per IEC/EDF Standards

6.6 Rated frequency Hz 50

6.7 Nominal discharge current (8/20 micro seconds wave)

kA 20

6.8 Minimum discharge capability KJ/kV As per IEC/EDF Standards

6.9 Residual voltage corresponding to

kV (peak)

6.9.1 Steep current impulse As per IEC/EDF Standards

6.9.2 Lighting impulse As per IEC/EDF Standards

6.9.3 Switching impulse As per IEC/EDF Standards


6.10 Reference voltage (TEC TC37-WG-4 1985)

A To be furnished during detail engineering

6.11 Reference voltage (TEC TC37-WG-4 1985)

kV(rms) To be furnished during detail engineering

6.12 Overvoltage withstand capability for :

a) 10 cycles kV(rms) To be furnished during detail engineering

b) 1 second kV(rms) To be furnished during detail engineering

c) Continuous kV(rms) To be furnished during detail engineering

6.13 Energy discharge capacity KJ/kV To be furnished during detail engineering

6.14 Maximum residual voltage at nominal discharge current


6.15 Discharge voltage at 5kA discharge current

kV(peak) To be furnished during detail engineering

6.16 Discharge voltage at 10 kA discharge current


6.17 Discharge voltage at 20 kA discharge current

KV(peak) To be furnished during detail engineering

6.18 Impulse current withstand

(a) High current short duration (4/10 micro second wave)



(b) Low current long duration

A(peak) To be furnished during detail engineering

(c) Virtual duration of rectangular wave

Micro-second


6.19 One minute power frequency (dry) withstand voltage of arrester housing


6.20 Impulse withstand test voltage of arrester housing with 1.2/50 micro-second wave

kV(peak) 450KVp (peak)

6.21 Total creepage distance of whole arrester housing

mm 31mm/kv

6.22 Cantilever strength of complete arrester

kg 800 ( minimum)

6.23 Pressure relief class (as per IEC 60099)


6.24 Routine Tests

a) Measurement of reference voltage test

Yes/No Yes

b) Residual voltage test

Yes/No Yes

c) Leakage check for arrester units with sealed housings

Yes/No Yes


d) Current distribution test for multi-column arrester

Yes/No Yes

6.25 Acceptance Tests

(a) Measurement of power frequency voltage on the complete arrester at the reference current measured at the bottom of the arrester

Yes/No Yes

(b) Lighting impulse residual voltage on the complete arrester or arrester unit at nominal discharge current

Yes/No Yes

(c) Partial discharge test at 1.05 times continuous operating voltage

Yes/No Yes


7.0 Insulator and hardware (Fill in for bus post ‘Insulator as well as insulator string)

7.1 Insulator / Insulator string

(a) Manufacturer and country of manufacture


(b) Applicable standard


(c) Type of insulator (Antifog / normal)

Solid core

(d) Insulating material


(e) No. of units per string

(f) Creepage distance

(i) disc unit

(ii) string assembly

mm

mm



(g) One minute power frequency withstand dry

(i) single disk

(ii) string assembly / bus post

kV

kV


(h) One minute power frequency withstand (wet)

i) disk unit

ii) string assembly / bus post

kV

kV


(i) Impulse withstand voltage (dry)

ii)disk unit


kVp

kVp



(j) Impulse withstand voltage (wet)

i) disk unit


kVp

kVp


(k) Electro mechanical strength of each disk


(l) Live parts to earth clearance (spark over distance)


(m) Cantilever strength (for bus post insulator only)


(n) Tensile strength (for bus post insulator only)


(o) Compression strength (for bus post insulator only)



(p) Visual discharge voltage for falling power frequency voltage (string and bus post insulator)


7.2 Insulator Hardware

(a) Manufacturer As per IEC/EDF Standards

(b) Applicable standard


(c) All ferrous parts are hot dip galvanised

Yes/No Yes

8.0 Bus Conductors, Clamps and Connectors

8.1 Flexible Conductor AAC/ACSR Aster

(a) Size of conductor for main bus and bus coupler bay buses


(b) Size of conductor for other bay buses, transfer bus



(c) The temperature rise of the conductor while carrying the rated current


(d) Purity of Aluminium / copper


8.2 Tubular Conductor Aluminium tube

*

(a) Size of the tabular conductor for bus


(b) The temperature rise of the tabular conductor while carrying the rated current


(c) Purity of Aluminium/copper


8.3 Shield wire

a) Material of the shield wire


b) Size of the shield wire


8.4 Clamps and connectors


(a) Whether material specification of the clamps and connectors are as per specification

Yes/No Yes

(b) Temperature rise of the clamp while carrying the rated current

ºC To be furnished during detail engineering

(c) Minimum thickness at any part of the clamps


(d) Corona extinction voltage for falling power frequency voltage.

V To be furnished during detail engineering

(e) Wedge type connectors Yes Yes

9.0 SWITCHYARD CONTROL PANEL (SCP)

9.1 Make and country of manufacture


9.2 Degree of protection for enclosure



9.4 Indicating Meters yes

9.4.1 Meter size mm 48x48 or 96x96

9.4.2 Accuracy As per EDF Std.

9.4.3 Type Analog/Digital

9.5 MWHr / MVARHr Energy meters Yse

9.5.1 Accuracy (Required 0.2S) Yes


9.5.2 Whether retransmission contact provided (Required)

Yes

9.6 Transducers Yes

9.6.1 Accuracy yes

9.6.2 Output current To be furnished during detail engineering

9.6.3 No. of channels To be furnished during detail engineering

9.6.4 Type No. & Make As per approved vendor list

9.7 Whether annunciators scheme, features, sequence and size are same as the one offered for plant control system

yes

9.8 Mimic material and width in mm To be furnished during detail engineering

10.0 Switchyard Relay Panel

10.1 Panel make and country of manufacture


10.2 Degree of protection for enclosure of panel

IP-43

10.3 Mounting of relays Front-Top

10.3.1 On conventional panels Front mounting

10.3.2 On pre-engineered panel Front mounting

10.4 Relay Particulars To be furnished during detail enginering

10.4.1 Control voltage 127 V


10.4.2 Current rating 50 KA for 1 sec

10.4.3 Voltage rating AC supply 415V/240 V,3 Ph,4 wire

10.4.4 Operating temperature range Ambient Temp.

10.4.5 Applicable standards As per IEC/EDF Standards

10.4.6 Aux. supply operating range

10.4.7 On line automatic testing facility provided

Yes

10.4.8 On line manual testing facility provided

Yes

10.5 Relay types offered (list each relay and furnish the data)


10.6 All the relays offered are type tested

Yes / No yes

10.7 If no which are all not type tested NA


1.14 CableSr. No.



2.0 Conductor Stranded and compacted copper or Aluminium

3.0 No. Core X Size As per system requirement

4.0 Form- circular/segmented circular

5.0 Effective cross sectional area sq. mm Min-2.5

Max-6

6.0 Single core power cables armouring Galvanised single round

steel wire

7.0 Multi core power cable armouring Galvanised single round

steel wire

8.0 Whether cores identification numbers

for cables with 5 cores and above to be

provided

Yes

9.0 Whether incremental running lengths

are marked on cable

*

10.0 Finished Cable As per IEC/EDF standards

10.1 Diameter under armour mm

10.2 Diameter over armour mm

10.3 Overall diameter mm

11.0 Cable drums

11.1 Wheter cable drums confirm to IS:

10417

11.2 Length of cables in drum & tolerance km To be decided during DE

11.3 Weight of cable drum without cables kg …………..do…………..

11.4 Weight of cable drum with cables kg …………..do…………..

11.5 Type of end sealing

12.0 FRLS Cables


Sr. No.


12.1 Critical oxygen index value at room

temp. when tested as per ASTM-D-

2863

29

12.2 Temp. index value at 21 Oxygen index

when tested as per ASTM-D-2863 /

NES-715-1

2500°C

12.3 Total acid gas generation by weight

when tested as per IEC-754-1 in %

Less than 20%

12.4 c) Smoke generation under fire when

tested as per ASTM-D-2843 in smoke

density rating

60%

12.5 d) Will the cables offered against this

specification pass the flammability

tests as per

*

1. Class - F3 - Swedish standard SS-

424-1475

Yes

2. IEC 332-1 Yes

3. IEC 331-1 Yes

13.0 Whether Cable pass the hydraulic

stability and ultraviolet tests as per

DIN 53377

Yes

14.0 Whether Finished Cable pass the

flammability test as per IEC-60322

Yes

15.0 Maximum dielectric loss of cable as

per km at normal voltage and

frequency

Watt/km

16.0 Short circuit capability for 1 Sec kA rms

17.0 Maximum dielectric stress at core

screen

kV/cm

18.0 Maximum overall diameter of cables mm


NOTE :

‘*’ Information shall be filled furnished by CONTRACTOR along with offer


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