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A.

132 kV 33 kV

1 Manufacturers Name and Country

2 Manufacturers type designation

3 Applicable Technical Standards

4 (a) Type of circuit breaker

(b) Type of tank (live/dead)

5 Rated frequency (Hz)

6 Number of poles (Nos.)

7 Whether 3 pole or single pole unit

8 No. of breaks per pole

9 Type -Outdoor

10 Rated continuous current at designtemperature of 38 deg. C

(Amp)

11 Rated short circuit breaking current

a) RMS value of AC component (kA)

b) Percentage DC component (%)

c) Asymmetrical breaking current at

highest system voltage

(kA)

d) Is it possible to increase the rupturing

capacity at a later date

(Yes/No)

12 Short time current rating for 1 sec. (kA)

13 Rated operating duty cycle14 Rated short circuit making current (kA peak)

15 First pole to clear factor

16 Rated characteristics for short time

faults and rated breaking capacity

(kA peak)

17 Rated line charging breaking current

with temporary over voltage upto 1.4

p.u.

(kA)

18 Rated out of phase breaking current

and corresponding transient recovery

voltage

(kA, kV)

19 Rated small inductive breaking current

with corresponding switching over

voltage

(Amp, p.u)

Sl.

No.Description Unit

Guaranteed Particulars

CIRCUIT BREAKERS

Section - IX : Guaranteed & other Technical Particulars

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20 Rated cable charging breaking current

and corresponding over voltages

recorded during test

(Amp, p.u)

21 (a) Maximum period between first

contact and last contact in a pole

(b) Maximum pole descrepancy

22 Rated (single) capacitor bank breaking

current and corresponding over

voltages recorded during test

(Amp, p.u)

23 Data on re-striking voltage for terminal

faults

a) Amplitude factor

100% capacity

60% capacity

30% capacity

10% capacity

b) Phase factor

100% capacity

60% capacity

30% capacity

10% capacity

c) Rate of rise of re-striking voltage

100% capacity

60% capacity

30% capacity

10% capacity

d) Transient recovery voltage

100% capacity (kV peak)




24 a) Is circuit breaker re-strike free under

all conditions of operation.

(Yes/No)

b) Means adopted if any to check thevoltage rise

25 Max. arcing time under any duty

condition with limiting conditions of

voltage and pressure

(ms)


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26 Maximum total break time under any

duty condition for any current up to

rated breaking current with limiting

conditions of voltage and pressure

(ms)

27 Maximum closing time (ms)

28 Minimum opening time under any duty

condition with limiting voltage and

pressure

(ms)

29 Maximum close open time under any

condition with limiting voltage and

pressure

(ms)

30 Minimum re-closing time at rated

interrupting capacity from instant of

trip coil energisation

(ms)

31 Minimum dead time fora) Three phase reclosing (ms)

b) Single phase reclosing (ms)

c) Limits of adjustment of dead time for

three phase reclosing

(ms)

32 Difference in the instants of closing

opening of contacts at rated voltage

and pressure

a) Within a pole (ms)

b) Between poles (ms)

33 Type of device, if any, used to obtain

uniform voltage distribution betweencontacts

34 Maximum temperature rise for

a) Main contacts over ambient

temperature at site

(Deg.C)

b) Terminals to be connected to the

external conductor

(Deg.C)

35 One minute power frequency

withstand test voltage for complete

a) Between line terminal and ground

objects with circuit breaker contacts

closed

(kV rms)

b) Between terminals with breaker

contacts open

(kV rms)

36 1.2/50 microsecond lightning impulse

withstand test voltage for complete

circuit breaker

a) Between line terminal and ground with

circuit breaker contacts closed

(kV peak)


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b) Across terminals with circuit breaker

contacts open

- one terminal lightning impulse (kV peak)

- opposite terminal power frequency (kV peak)37 Corona extinction voltage (kV rms)

38 i) Radio Interference Voltage at

a) 0.5 MHz (mV)

b) 1.0 MHz (mV)

c) 1.5 MHz (mV)

d) 2.0 MHz (mV)

ii) Partial discharge level (mC)

39 Whether the circuit breaker is fixed

trip or trip free

Yes/No

40 a) Rated voltage of closing coils (Volts)

b) Range of pick up value (Volts)

41 a) Rated voltage of tripping coil (Volts)

b) Range of pick up value (Volts)

42 Normal power consumption at rated

voltage for

a) Trip coil (Watts)

b) Closing coil (Watts)

43 Number of trip coils (Nos.)

44 Type of main contact

45 Whether arcing contact provided (Yes/No)

46 Material of

a) Main contact

b) Arcing contact

c) Whether contacts silver plated (Yes/No)

d) Minimum thickness of silver plating (mm)

e) Contact pressure of main contact (kg/sq. cm)

47 Number of auxiliary contacts per pole

provided for Purchasers use.

a) NO (Nos.)

b) NC (Nos.)

48 Rated voltage of auxiliary contacts (Volts)

49 Current capacity of auxiliary contacts

a) Continuous (Amp)

b) Breaking (Amp)

50 Whether auxiliary contacts silver

plated

(Yes/No)

51 SF6 circuit breakers


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(a) Quantity of SF6 gas required for

each pole of circuit breaker

(kg)

(b) Guaranteed maximum leakage rate

of SF6 gas per year

(%)

(c) Rated pressure of SF6 in opeerating

chamber

(kg/sq. cm)

(d) SF6 density monitor provided (Yes/No)

(e) Limits of pressure of SF6 gas at

which breaker operate correctly

(kg/sq. cm)

52 Number of operations after which SF6

gas replacement is necessary

a) At full rupturing capacity (Nos.)

b) At 50% of rated rupturing capacity (Nos.)

c) At 10% of rated rupturing capacity (Nos.)

d) At rated current (Nos.)53 Number of operations after which

main and auxiliary contacts

replacement is necessary.

a) At full rupturing capacity (Nos.)

b) At 50% of rated rupturing capacity (Nos.)

c) At 10% of rated rupturing capacity (Nos.)

d) At rated current (Nos.)

54 Number of operations at rated current

after which routine inspection /

maintenance of breaker is necessary.

(Nos.)

55 Number of operations at full rupturingcapacity after which routine

inspection/maintenance of circuit

breaker is necessary.

(Nos.)

56 Parameters of SF6 gas required for

initial filling and satisfactory operation

a) Density (kg/sq. cm)

b) Dielectric strength (kV/mm)

c) Acidity (ppm)

d) Water content (ppm)

e) Oil content (ppm)

f) Condensation temperature (Deg. C)

g) Resistivity (Ohm-m)

57 Support insulators column/units

a) Make and type

b) Numbers per pole (Nos.)

c) Weight (Kg)


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d) Transport dimensions (mm x mm xmm)

e) One minute power frequency

withstand voltage

(kV rms)

f) Lightning impulse withstand voltage (kV peak)

g) Corona extinction voltage (kV rms)

h) Creepage distance (mm)

i) Permissible safe cantilever strength (Kg)

j) Insulation class

k) Flash over voltage (kV)

58 Type of operating mechanism for

a) Closing

b) Opening

59 Rated pressure and limits of pressure

of operating mechanism in case ofpneumatic and hydraulic mechanism

(kg/sq. cm)

60 Pneumatic operating mechanism

a) Rated operating pressure (kg/sq. cm)

b) Range of pressure for

i) Closing (kg/sq. cm)

ii) Opening (kg/sq. cm)

c) Air consumption at rated pressure for

i) Closing (m3)

ii) Opening (m3)

iii) Close - Open (m3)

d) Number and capacity of local airreceiver

(m3)

e) Time required for filling the air

receiver to its rated pressure from

atmospheric pressure

(minutes)

f) Design pressure of air receiver (kg/cm2 )

g) Number of closing opening operations

possible without charging the air

receiver

(Nos.)

h) Arrangement provided for preventing

the operation of breaker with

insufficient air pressurei) Compressor

i) Make and type

ii) Number of compression stages (Nos.)

iii) Compression pressure (kg/sq. cm )


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iv) Whether compressor is provided

with its own filter. If so give type and

make

(Yes/No)

v) Effectively delivered air in litersper hr. at atmospheric pressure.

(Ltr/hr)

j) Compressed air piping

i) Material

ii) Inner & outer diameter (mm, mm)

iii) Working pressure (kg/sq. cm )

61 Spring charged mechanism

a) Name of Manufacturer

b) Rating of motor (Volts)

c) Time required for charging the closingspring

(Sec)

d) Number of CO operation possible after

failure of auxiliary supply

(Nos.)

e) Whether indication for spring charged

condition provided in central control

cabinet.

(Yes/No)

62 Hydraulic operating mechanism

a) Rated pressure of oil in operating

cylinder

(kg/sq. cm )

b) Limits of operating pressure (kg/sq. cm )

c) Specification of oil and quantityrequired per breaker

(litres)

d) Number of CO operation possible after

loss of hydraulic pressure.

(Nos.)

e) Details of arrangement to prevent

change of position of breaker in the

event of loss of hydraulic pressure.

f) Details of motoring arrangement for

hydraulic pressure

g) Details of hand pump set provided for

emergency operation

63 Control cabineta) Manufacturers Name

b) Thickness of sheet steel (mm)

c) Degree of protection provided

d) Colour of finish paint

i) Outside


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ii) Inside

e) Control wiring

i) Rated voltage (Volts)

ii) Size (Sq. mm)

f) Terminal Block

i) Make

ii) Current rating (Amp)

64 Terminal clamps and connector

a) Manufacturers Name

b) Applicable standard

c) Material

i) Clamp body

ii) Bolts and nuts

iii) Spring washer

iv) Liner if any

d) Rated current (Amp)

e) i) Rated terminal load (Kg orN)

ii) Factor of Safety

f) Radio interference voltage (mV)

g) Corona extinction voltage (kV rms)

h) Maximum allowable span for

aluminum tube of 114.2 mm outer

diameter and 97.18 mm inside

diameter on equipment terminal padwith rated fault current and 7 m and

(m)

65 Over all dimensions

a) Height (mm)

b) Width (mm)

c) Length (mm)

66 Clearances

a) Between poles (mm)

b) Between live part and earth (mm)

67 Weight of

a) Each pole (Kg)b) Complete Breaker for foundation (Kg)

69 Impact loading on foundation design

70 Noise level

a) At base (dB)

b) At 50 m distance from base (dB)


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71 Seismic level for which breaker is

designed

72 Compliance to technical specification

w.r.t. parameters specified for(a) Control cabinet Yes/No

(b) Bushing/support insulator Yes/No

(c) Terminal connector Yes/No

(d) SF6 Gas Yes/No

72 Enclosures

Whether the following are enclosed:

i) Type test reports for mainequipment and auxiliaries

(Yes/No)

ii) Drawings as per specification (Yes/No)

iii) Technical literature for circuit

breaker, SF6 gas, support insulators

and operating mechanism

(Yes/No)


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Guaranteed ParticularsSl.

No.Description Unit

17 Rated mechanical terminal loads for

horizontal break isolator

a) Longitudinal (N)

b) Transverse (N)

18 Total operating time of Isolator &

earth switch

a) Opening time (Sec)

b) Closing time (Sec)

20 Dielectric withstand capacity of

completely assembled isolator/earth

switch

21 Main contacts (fixed and moving)

a) Type

b) Material

c) Whether contacts are silver plated (Yes/No)

d) Thickness of silver coating(Microns)

e) Contact area (Sq. mm)

f) Contact pressure (kg/sq. cm)

g) Max. Current density under normal

current carrying capacity

(A/sq. cm)

h) Number of operations which the

isolator can make without

deterioration of contacts.

(Nos.)

22 Auxiliary contacts

a) Isolator

i) Total number of spare contacts

provided for purchasers use

a) NO (Nos.)

b) NC (Nos.)

ii) Rated voltage (Volts)

iii) Rated continuous current (Amp)

iv) Rated breaking current (Amp)

b) Earth Switch

i) Total number of spare contacts

provided for Purchasers use

a) NO (Nos.)

b) NC (Nos.)

ii) Rated voltage (Volts)

iii) Rated continuous current (Amp)

iv) Rated breaking current (Amp)

c) Whether arcing contacts provided and

if so give type and material used.

(Yes/No)

23 Insulators


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No.Description Unit

a) Make

b) Type (solid core)

c) Applicable Standard

d) Number of insulator stacks per pole (Nos.)

e) Number of insulators per stack (Nos.)

f) 1 minute power frequency withstand

voltage

(kV rms)

g) Lightning impulse withstand voltage (kV peak)

h) Visible corona extinction voltage (kV rms)

i) Creepage distance (mm)

j) Weight of each post insulator per (Kg)

k) Tensile strength (Kg)

l) Compressive strength (Kg)

m) Torsional strength (Kg-m)

n) Cantilever strength (Kg)

o) Bolt circle dia (mm)

24 Minimum phase to phase clearance (mm)

25 a) Minimum phase to ground (mm)

b) Minimum distance between phases

when isolator is open

(mm)

26 Types of bearings

27 Locations of bearings

28 Type of lubricant for bearings

29 Terminal Clamps & Connectors

a) Manufacturers name

b) Applicable standard

c) Materiali) Clamp body

ii) Bolts and nuts

iii) Spring washer

iv) Liners if any

d) Rated current (Amp)

e) Rated terminal load (Kg)

f) Weight of clamp complete with

hardware

(Kg)

g) Radio Interference Voltage (mV)

h) Corona extinction voltage (kV rms)

i) Maximum allowable span foraluminum tube with applicable size

with rated fault current and applicable

phase to phase spacing for

(m)

30 Operating Mechanism

a) Type of operating mechanism

b) Name of manufacturer


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No.Description Unit

c) Whether inter-pole cabling included

in scope of supply

(Yes/No)

d) Whether separate operating

mechanism provided for operation of

isolator pole and earthing switch.

(Yes/No)

e) Electrical operation

i) Motor type (AC/DC)

ii) Applicable standard

iii) Rated voltage and current (V, A)

iv) Type of enclosure and method of

cooling

v) Power required for closing and

opening operation

(Watts)

vi) Running time of motor for

closing and opening operation

(Sec)

vii) Control supply for motor control

center

(Volts)

f) Type of manual operating mechanism

for isolator pole

g) Force required to operate manual

operating mechanism

(Kg)

h) Whether padlocking included as per

the specification

(Yes/No)

i) Type of manual device for Earthing

Switch

j) Force required to operate manual

device for earthing switch

(Kg)

31 Interlocking

a) Details of mechanical interlock

between isolator and earth switch

(Yes/No)

b) Details of electrical interlock for

isolator and earth switch enclosed

(Yes/No)

c) Details of electrical interlock

provided to satisfy relevant clause of

Section-Major Substation Equipment.

(Yes/No)

d) Details of electrical scheme to provide

remote alarm for pole discrepancy.

(Yes/No)

e) Details of electrical interlock to bring

back all three poles to open position

in case any pole fails to close withinspecified time

(Yes/No)

f) Details of provisions to cut off supply

to the motor during manual operation

and provision for declutching the

(Yes/No)


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No.Description Unit

g) Arrangement provided to prevent

electrical or manual operation unless

interlock conditions are satisfied.

(Yes/No)

32 Control Cabinets / Marshalling box

a) Manufacturers name

b) Thickness of sheet (mm)

c) Degree of protection provided

d) Colour of finish paint

i) Outside

ii) Inside

e) Control wiring

i) Voltage rating (Volts)

ii) Size and material of conductor (Sq. mm /SWG)

f) Terminal block

i) Make

ii) Current rating (Amp)g) Space heater rating at 240 volts (Watts)

h) Whether all cabling for wiring out

contacts to control cabinet included in

scope of supply

(Yes/No)

33 Size and Weight

a) Weight of each pole (Kg)

b) Space requirement i.e. length. (mm)

c) Height of 3 phase isolator without

earth switch.

(mm)

d) Dimension of the isolators

i) without earthing switch (mm x mm xmm)

ii) with earth switch on one side (mm x mm xmm)

iii) with earth switch on both sides (mm x mm xmm)

34 Enclosures

Whether the following are enclosed

i) Type test report for main

equipment and auxiliaries

(Yes/No)


iii) Technical literature for isolator,

operating mechanism and support

insulators.

(Yes/No)

35 Compliance to Technical

Specification w.r.t.

(a) MOM box Yes/No

(b) Support insulators Yes/No


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No.Description Unit

(c) Terminal connectors Yes/No

36 A. Tandem Pipe

a) Size ( internal diameter) (mm)

b) Class

c) MaterialB. Down pipe

a) Internal dia. (mm)

b) Class

c) Material


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C.

Sl.

No.Description Unit

Guaranteed

Particulars

1 Manufacturers Name and Address


3 Type of CT (Live or dead tank type)

4 Rated voltage (kV)

5 Max. Continuous rated voltage (kV)

6 Standards applicable


8 Core Details - Core 1

a) Rated primary current (Amp)

b) Rated secondary current (Amp)

c) Rated output (Burden) (VA)

d) Rated output at 0.8 lagging power (VA)

e) Class of accuracy

f) Accuracy limit factorg) Saturation factor

h) Knee point voltage at different taps (Volts)

i) C.T. Resistance of secondary winding

corrected to 70 Deg. C

(Ohms)

j) Magnetizing current at knee-point (mA)

k) Secondary limiting voltage (kV)

l) Instrument Security Factor (ISF)

Core Details - Core 2


b) Rated secondary current(Amp)




f) Accuracy limit factor

g) Saturation factor




(Ohms)









CURRENT TRANSFORMERS (145 kV & 36 kV)


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No.Description Unit

Guaranteed

Particulars





i) C.T. Resistance of secondary windingcorrected to 70 Deg. C

(Ohms)















(Ohms)















(Ohms)




9 One minute power frequency

withstand test voltage of

i) Primary winding (kVrms )

ii) Secondary winding (kV)


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No.Description Unit

Guaranteed

Particulars

10 1.2/50 microsecond lightning impulse

wave withstand voltage of primary

winding

(kV peak)

11 One minute dry power frequency

withstand voltage

(kV rms)

12 Creepage distance (mm)

13 Rated continuous thermal current (Amp)

14 Ratios available at different taps

15 Rated short time thermal current (kA rms)

16 Rated time for above (Sec)

17 Rated dynamic current for primary (kA peak)

18 Class of insulation

19 Maximum temperature rise over

ambient of 38 Deg. C at any part or oil

(Deg. C)

20 a) Corona extinction voltage (kV rms)

b) Radio Interference Voltage at 1 (mV)c) Partial discharge level (pC)

21 Total weight (Kg)

d) Standard to which oil conforms

24 Quantity of oil (litres)

25 Overall dimensions (mm x mmx mm)

26 Heights of supporting structure (mm)

27 Drawings enclosed

i) Magnetization curve (Yes/No)

ii) Ratio and phase angle characteristics at

least up to accuracy limit factor

(Yes/No)

iii) Ratio Correction Factor curve (Yes/No)

iv) Limits of composite error at rated

primary saturation current (for

(Yes/No)

v) Base plan (Yes/No)

vi) Maximum safe loading as per drawing (Yes/No)

vii) Foundation plan showing details of

foundation bolts

(Yes/No)

viii) Foundation loading (Yes/No)

ix) Support structure (Yes/No)

28 Temperature Rise after passing short

time Thermal current for one second

(Deg. C)

29 Current density in primary winding

a) Normal rating at different taps (A/ sq. m)

b) Short time rating of 1 sec (A/ sq. m)

c) Dynamic rating (A/ sq. m)

30 Type of primary winding

31 Number of primary turns (Nos.)


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Guaranteed

Particulars

32 Number of secondary turns (Nos.)

33 Flux density at knee point voltage

(knee point defined at the point at

which 10% increase in voltage

produces a 50% increase in

(Tesla)

34 Radio interference voltage

a) With terminal connector mounted (mV)

b) Under test condition (mV)

35 Variation in ratio and phase angle error

due to variation in

a) Voltage by 1% (%, %)

b) Frequency by 1 Hz (%, %)

36 Source/grade of oil and standard with

which it complies

37 Whether pressure relief device is

provided

(Yes/No)

38 Mounting details (Yes/No)

39 Whether the following are enclosed

with tender:

a) All type test reports (Yes/No)

b) Drawings as per the specification (Yes/No)

c) Technical literature for current

transformer and marshalling box.

(Yes/No)

40 Weight of CT with oil (Kg)


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D.

Sl.

No.Description Unit Guaranteed Particulars

1 Manufacturers Name and address


3 Applicable standard

4 Rated voltage

a) Nominal (KV rms)b) Maximum (KV rms)


6 Number of secondary windings (Nos. )

7 No. of phases (Nos.)

8 Maximum temperature rise over ambient

of 38 Deg.C

(Deg. C)

9 Reference range of frequency (Hz)

10 Reference range of temperature (Deg. C)

11 Rated primary burden (VA)

12 Winding details - Windings 1

a) Rated primary voltage (kV)

b) Rated secondary voltage (V)

c) Rated secondary burden (VA)d) Accuracy class




c) Rated secondary burden (VA)

d) Accuracy class




c) Rated secondary burden (VA)

d) Accuracy class

15 Rated voltage factor and corresponding

rated time

16 Rated total thermal burden (VA)

17 Rated insulation levels

a) 1.2/50 micro-second Lightning impulse

withstand voltage

(kV peak)

b) 1 minute dry power frequency withstand

test voltage

(kV rms)

18 Creepage distance (mm)

19 Radio Interference Voltage at 1 MHz at

105 kV rms for 132 kV system

(V)

20 Corona extinction voltage (kV rms)

21 Overall dimensions & weights

a) Width (mm)

b) Height (mm)

c) Weight (Kg)

22 Rated total thermal burden (Attach curve

& state curve reference numbers)

(VA)

POTENTIAL TRANSFORMERS (145 kV and 36 kV)


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23 Temperature rise at 1.2 times rated

primary voltage Continuous with rated

burden after steady state conditions at

normal rated voltage and burden

(Deg. C)

24 Temperature rise at 1.5 times rated

voltage for 30 sec.

(Deg. C)

25 One minute power frequency withstand

voltage on secondaries

a) Winding No. I (kV rms)

b) Winding No. II (kV rms)

c) Winding No. III (kV rms)

35 One minute power frequency withstand

voltage of HF terminal

36 Partial discharge level (pC)

37 Value of pressure for sealing test (kN/sq. m)

38 Weight of oil and the standard to which it

conforms

a) In measuring unit (Kg)

39 Quantity of oil (litres)

40 Total weight (Kg)41 Minimum center to center recommended

spacing between PTs.

(mm)

42 Clearance required from grounded

equipment at various heights of PTs.

(mm)

43 Mounting flange dimensional details

44 Compliance to technical specification

(a) Bushing insulator (Yes/No)

(b) Control cabinet (Yes/No)

(c) Terminal connectors (Yes/No)

45 Enclosures:

Whether the following are enclosed with

the tenderi) All type test reports (Yes/No)


iii) Technical literature for potential

transformer and marshalling box.

(Yes/No)


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F.

Sl.

No.Description Unit

Guaranteed

Particulars

1 Manufacturers Name and Address


3 Applicable technical standard

4 Arrester class and type

5 Rated voltage of arrester (kV rms)

6 Rated system voltage (kV rms)


8 Continuous Operating Voltage (COV) (kV rms)

9 Nominal Discharge Current (8/20 micro sec.) (kA)

10 a) No. of units in complete arrester (Nos.)

b) Voltage rating of each unit (kV rms)

c) Height of longest unit (mm)

11 Long duration discharge class

12 a) Minimum energy dissipation capability (kJ/kV of

rated voltage of arrester)

(kJ/kV)

b) Power frequency over voltage withstand capability

immediately after discharging energy equivalent to

the minimum capability of arrester .

(kV rms)

13 Leakage current at COV and ambient temperature

a) Resistive component (mA)

b) Capacitive component (mA)

c) Total (mA)

14 Reference voltage and corresponding reference

current guaranteed by manufacturer

(kV rms,

kA rms)

15 Watt loss per kV at COV (Watts)

16 Temporary power frequency over voltage withstand

capability

a) 0.03 sec (for 390 kV only) (kV rms)

b) 0.1 sec (kV rms)

c) 1.0 sec (kV rms)

d) 10 sec (kV rms)

e) 100 sec (kV rms)

17 Maximum residual voltage for

a) Lightning impulse current (8/20 micro sec.) of

- 5 kA (kV peak)

- 10 kA (kV peak)

- 20 kA (kV peak)

b) Steep current impulse (1/20 micro sec) at Nominal

Discharge Current

(kV peak)

18 High current short duration impulse (4/10 micro sec)

value

(kApeak)

19 Low current long duration impulse current (2000

microsec.)

20 Whether pressure relief devices provided (Yes/No)

21 Current for pressure relief test (kA)

METAL OXIDE SURGE ARRESTERS (120 kV & 30 kV)


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23 Weight of cell complete with electrolyte (Kg)

24 Size and material of connectors with method of

connectingcells

(mm)

25 Recommended period of storage before first

charging

(hr)

26 Size of cable recommended for connections ofbattery-to-battery charger, DC distribution

(sq. mm)

27 Insulator material for rack and cells.

28 Battery racks

i) Type of material

ii) Whether anti-acid coating provided (Yes/No)

iii) Net weight (Kg)

29 Short circuit current at battery terminals (Amps)

30 Recommended maximum rating of fuse for

protection of battery

(Amps)

31 Time for which the battery can withstand short

circuit at terminals

(Sec)

32 Amount of hydrogen evolved during boost

33 Recommended interval at which battery should

be discharged at 10 hour discharge rate and

boost charged.

34 AH efficiency (%)

35 WH efficiency (%)

36 Equalizer charging current and frequency of

equalizing charge recommended

(Amp, Hz)

37 a) Type of inter cell connector (bolted/burnt)

b) Material of inter cell connector

38 During initial charging

a) Recommended starting rate of charge

b) Recommended finishing rate of charge

c) Voltage of cell at the end of charge at finishing (Volts)

39 Enclosures

a) Whether all the drawings and technical literature

of Battery enclosed

(Yes/No)

b) Whether type test reports enclosed (Yes/No)


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II

FloatFloat cum

Boost

1 Manufacturer's Name and Address

2 Charger rated output current(Amp)

3 Charger rated output voltage (Volts)

4 Capacity of battery chargers (AH)

5 Rectifier assembly

a) Type of semi conductor material

b) Rated direct current (Amp)

c) Rated direct voltage (Volts)

d) Continuous rating (Amp)

e) Rated input voltage (Volts)

f) Type of connection of rectifier elements (Full wave

half/full controlled bridge)

g) Maximum temperature rise over ambient of 38 Deg. C

outside

(Deg. C)

h) Short time rating and duration (Amp, Sec)

i) Short circuit current on the output terminal (Amps)

j) Peak inverse voltage of rectifier elements (Volts)

k) Overload capacity (%)

l) Applicable standard

6 Load limiter current setting range for float charger (Amp, %)

7 Automatic voltage regulator (Float/Boost charger)

a) Type

b) Percentage stabilisation of the out put DC voltage (%)

c) Voltage setting range (Volts, %)

d) Response time (ms)

8 Manual voltage regulator (Float/Boost charger).

a) Type

b) Voltage setting range

9 a) Boost charging current setting range (Amp, %)

b) Boost charging voltage limit setting range (Volts, %)

10 Rectifier transformer

a) Type

b) Rated kVA and % impedance (kVA, %)

c) Turns ratio

d) Primary winding connection in vector representation

e) Secondary winding connection in vector representation

f) Class of insulation

g) One minute power frequency withstand voltage (kV rms)

h) Over load capacity (%)i) Applicable standard

j) Whether short circuit test has been conducted (Yes/No)

11 Instruments

a) Type

b) DC voltmeter range (Volts)

c) DC Ammeter range (Amp)

d) Accuracy class as per IS

e) Dial size (mm x mm)

DC STATION BATTERY AND BATTERY CHARGERS

BATTERY CHARGER

Sl.

No.Unit


Description


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Boost

Sl.

No.Unit


Description

12 Contactor

a) Type

b) Rated voltage (Volts)

c) Rated current (Amp)

d) No. of Power contactse) Number, type and rating of auxiliary contacts (V, A, AC/DC)

f) Operating coil voltage (Volts)

g) Dropout voltage (Volts)

13 Thermal over load relay

a) Tripping current range (Amp)

b) Whether single phasing protection provided (Yes/No)

c) Applicable standard

14 Air break switches

a) Type


c) Rated current (Amp)

d) Type and material of contacts

e) Applicable Standardsf) Maximum through fault current withstand (kA)

g) Rated making and breaking capacity (kA)

15 Fuses

a) Type

b) Rupturing capacity (kA)

c) Applicable standard

16 Blocking diode

a) Continuous rating (Amp)

b) Short time current rating (Amp)

c) Peak inverse voltage (Volts)

d) Type of semi conducting material

17 Ripple content in DC output

a) With battery (%)

b) Without battery (%)

18 Guaranteed efficiency at rated load (%)

19 Whether chargers provided with following features

a) Automatic voltage regulators (Yes/No)

b) Automatic current regulators (Yes/No)

c) Soft start feature (Yes/No)

d) Smoothing resistor/capacitor filter circuit (Yes/No)

e) Selector switch for automatic and manual mode of

operation

(Yes/No)

f) Load linking circuitory (Yes/No)

g) Necessary RC network for protection of rectifier

elements

(Yes/No)

20 Enclosure :

a) Whether all the drawings and technical literature for

chargers enclosed

(Yes/No)

b) Whether type test reports enclosed (Yes/No)


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No.Description Unit Guaranteed Parameters

iii) Connecting Links

iv) Support springs

v) Cover

vi) Label

vii) End stop

8 Weight in kgs. (Kg)9 Minimum No. of conductors of area 2.5 sq. mm

suitable for connection

i) All circuits except CT (Nos.)

ii) CT circuits (4 sq. mm) (Nos.)

10 % of spare terminals on each panels (%)

11 Whether shrouding provided for terminals of

voltages more than 110 V AC / DC

(Yes/No)

12 Whether stud type brass terminals provided (Yes/No)

13 Marking

14 Descriptive literature/ leaflet enclosed (Yes/No)

15 Ref. No. and date of type test certificate

D. CONTROL SWITCHES1 Make

2 Type of the switch

3 Type of handle (stay put or otherwise)

4 No. of possible positions of the handle with

a) No. of contacts available in each position

i) Open (Nos.)

ii) Close (Nos.)

b) Maximum No. of contacts which can be

accommodated for each position

(Nos.)

5 Rating of contacts

a) Voltage (Volts)

b) Make and carry current continuously (Amp)c) Make and carry current for 0.5 sec (Amp)

d) Break resistive load (Amp)

e) Break inductive load with L/R = 40 m. sec (Amp)

6 Whether locking arrangement provided (Yes/No)

7 Mounting details and Drawing No.

8 Dimensions (mm)

9 Other information, if any

10 No. of slip contacts (lost motion type)

a) After close (Nos.)

b) After trip (Nos.)

c) Maximum No. of slip contacts possible (Nos.)

11 Standard to which it conforms12 Detailed technical literature furnished (Yes/No)


E. INDICATING LAMPS

1 Make

2 Type

3 Ratings

a) Current (Amp)

b) Voltage (Volts)


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c) Wattage (Watts)

4 Colour of lamp

5 Permissible voltage variation (%)

6 Whether series resistance is provided, if so (Yes/No)

a) Ohmic value (Ohms)

b) Power loss (Watts)7 Life of lamp in burning hours (Hours)

8 Other information, if any

9 Size of lens (mm)

10 Identification inscription

11 Dimension and mounting details (mm)

12 Voltage withstand on continuous basis as a

percentage of rated voltage

(%)



15 Standard to which it conforms

F. PUSH BUTTONS

1 Make2 Contact type (momentary/maintained)

3 Whether shrouding provided to prevent

inadvertent operation

(Yes/No)

4 Whether integral engraved inscription plates (Yes/No)

5 No. of NO/NC contacts (Nos.)

6 Make and carry capacity at 250 VDC (Amp)

7 Break inductive load capacity (Amp)




G. ANNUNCIATORS1 Make and type

2 No. of windows (Nos.)

3 Dimensions of each window (length x height x (mm x mmx mm)

4 No. of lamps per window (Nos.)

5 Auxiliary supply voltage (Volts)

6 Power consumption (Watt)

7 Details of auxiliary equipment such as relays etc.

furnished

(Yes/No)

8 Required instantaneous making capacity of

initiating contacts

(Amp)

9 Type of reset - (manual / self)

10 Over all dimensions of annunciator (mm x mmx mm)

11 Particulars of wiring enclosed (Yes/No)

12 Technical literature enclosed (Yes/No)

13 Brief write up of the scheme furnished (Yes/No)


H. INDICATING METERS

1 Make and type

2 Type of movement


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3 Type of mounting

4 Range

a) Effective range

5 CT ratio

6 PT ratio

7 Details of shunt, if anya) Rated current (Amp)

b) Rated voltage drop (Volts)

8 Accuracy class

9 Total deflection angle (Degrees)

10 Total scale length

11 Dimension (mm)

12 Reference condition of influencing quantities

13 Limits of influencing quantities for its application

14 Limit of error for variation of each of the

influencing quantities

15 Limits of error in effective range

16 Power consumptiona) Current coil (Watts)

b) Potential coil (Watts)

17 Burden

a) Current coil (VA)

b) Voltage coil (VA)

18 Short time rating

a) Current coil (Amp)

b) Voltage coil (Volts)

c) Time (Sec)

19 Other details

20 Detailed literature furnished (Yes /No)

21 Weight (Kg)22 Whether magnetically shielded or not (Yes /No)

23 Continuous over loading

a) Current coil (Amp)

b) Potential coil (Volts)

24 Temperature at which the instruments are (Deg. C)


26 Standard to which the instrument conforms.

27 Descriptive literature/ leaflet enclosed (Yes /No)

I. ENERGYMETERS

1 Make and size

2 Type of measurement

3 Measuring range4 CT ratio

5 PT Ratio

6 Current coil rating (Amp)

7 Voltage coil rating (Volts)

8 Accuracy at 125% , 10% and 25% of rated

a) Active energy measurement

b) Reactive energy measurement

9 Power Consumption


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a) Current coil (Watts)

b) Potential coil (Watts)

10 VA burden of current coil (VA)

11 VA burden of potential coil (VA)

12 Limits of error at UPF and

a) Rated currentb) 125% of rated current

c) 25% of rated current

d) 10% of rated current

13 Limits of error at 0.5 PF (lag) and

a) Rated current

b) 125% of rated current

c) 25% of rated current

d) 10% of rated current

14 Continuous overload rating of current coil

a) For thermal limit (Amp)

b) For accuracy limit (Amp)

15 Short time overload rating of current coil

a) Current (Amp)

b) Time (Sec)

16 Continuous over voltage rating of potential coil (Volts)

17 Reverse running stop provided (Yes/No)

18 Short time over voltage rating of potential coil (Volts, Sec)


20 Mounting details

21 Whether tropicalized (Yes/No)

22 Auxiliary supply (Volts)

23 Suitability for measurement on unbalanced 3

phase, 3wire System

(Yes/No)

24 No. of digits on the meter (Nos.)25 Starting watts at UPF (Watts)

26 Reference condition of influencing quantities

27 Limits of influencing quantities for its application

28 Temperature at which calibrated (Deg. C)

29 Weight (Kg)

30 Whether magnetically shielded or not? (Yes/No)

31 Limits of error in the effective range

32 Descriptive literature/ leaflets submitted (Yes/No)

33 Testing facilities and other details, if any.

34 Ref. No. & date of type test certificate submitted.

J. RECORDING INSTRUMENTS

1 Make and type

2 Type of mounting

3 Range of parameter that can be recorded

4 Range of basic movement (in case of transducer

operated system)

5 Accuracy

6 Range and choice of speeds


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7 Paper width (mm)

8 Length of chart (mm)

9 Auxiliary supply

a) Voltage (Volts)

b) Current (Amp)

c) Watts (Watts)10 Permissible variation in auxiliary supply (%)

11 Burden (VA)

12 Type of case (draw out/non draw out)

13 Detailed technical literature furnished (Yes/No)

14 Particulars of drive

15 Form of reserve drive

16 Details of arrangement for time synchronization

17 Standard to which the recorder conforms

K. DISTURBANCE RECORDER

1 Name of manufacturer


3 Standards according to which disturbancerecorders and event recorder are manufactured

4 Over rated voltage (Volts)

5 Frequency (Hz)

6 Data Acquisition Unit

i) Resolution time for data acquisition (ms)

ii) Whether micro processor based or not (Yes/No)

iii) Rate of scanning of analogue and digital (Hz /Channel)

iv) Analysis of recording of analogue quantities

Type of channel

AC/DC Current

AC/DC Volts

Watts / VAR / carrier

Zero seq. voltage

Multiphase voltage

Period/frequency

Negative sequence voltage

v) Rate of sampling

7 Sensor details

a) i) Current swing

ii) Voltage swing

iii) 3 phase under voltage

iv) 3 phase over voltage

v) 1 phase under voltage

vi) 1 phase over voltagevii) 3 & 1 phase over current

viii) Rate of change of voltage

ix) 3 phase. Neg. sequence voltage

x) 3 phase zero sequence voltage

xi) Over/under frequency

xii) DC over/under level

b) Stability of sensor trip setting (%)

8 Recorder:


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i) Type

ii) Type of paper used

iii) Recorder chart speed (% of rated speed for

prefault & postfault period)


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iv) Response time

a) Transient response time suitable to resolve

breaker pole timing and restrike wave forms

(ms)

b) % over shoot (%)

v) Phase accuracy at 50 Hz (%)

vi) 50 Hz interference (P-P)vii) Fluctuations due to zero trace noise (peak to

viii) Full scale & division

ix) Trace width (mm)

x) Record clarity

xi) Gain stability (%)

xii) Linearity & distortion

xiii) Amplitude resolution

L. Details of event Logger/ Recorder

i) Type

ii) Width space occupied on chart

iii) Operating input current

1 Isolation levelsi) Isolation levels

ii) Circuit breaker

iii) AC input

iv) Events

v) DC power

vi) Alarms

vii) AC sync.

2 Overload ratings of Channel

i) AC Current

a)Continuous Rating (Amp)

b)1 min. Rating (Amp)

c)1 sec. Rating (Amp)

ii) AC Potential

a)Continuous Rating (Volts)

b)1 min. Rating (Volts)

c)1 sec. Rating (Volts)

3 Printer Characteristics

i) Type

ii) Type of paper used

iii) Test frequency of oscillation (Hz)

iv) Test pulse repetition period (ms)

v) Test duration (Sec)

vi) Peak test voltage (kV)

4 Calibration Devices

i) Currentii) Voltage

iii) Accuracy

5 Real time clock

a) Type

b) Accuracy

6 Type of controls provided for maintenance and

calibration

7 Power supply


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i) Power Consumption (Watts)

ii) Frequency Variation (%)

iii) Voltage Fluctuation

for AC - % and (%)

for DC - % (%)

8 Service life of the equipment (Years)9 Overall dimensions of the equipment (mm)

10 Weight (Kg)

11 Whether type test certificates submitted (Yes/No)

12 Whether details of principles, details of

individual equipment have been submitted

(Yes/No)

13 Descriptive literature/ leaflets enclosed. (Yes/No)

M. FAULT LOCATORS

1 Make

2 Type

3 Reference standards

4 Rated current & or voltage (A, V)

5 Rated DC voltage (V DC)6 Operating principle

7 Solid state / electro mechanical / Numerical

8 Thermal rating (Amp)

9 Number of contacts

i) Normally Open (Nos.)

ii) Normally Closed (Nos.)

10 Contacts self reset / hand reset

11 Burden (VA)

12 Operation indicator provided (Yes/No)

13 Contact rating

i) Make and carry continuously (Amp)

ii) Make and carry for 0.5 sec (Amp)

iii) Break

a) Resistive load (Amp)

b) Inductive load (with L/R = 40 milli sec.) (Amp)

14 i)Maximum registering time (ms)

ii) Time to locate Fault (ms)

15 Whether direct display unit provided? If so,

details to be given.

(Yes/No)

16 Whether a printer included? If so, details to be

given

(Yes/No)

17 DC/DC converter included? (Yes/No)

18 Separate phase and each fault features provided (Yes/No)

19 Descriptive literature enclosed (Yes/No)

N.DIRECTIONAL COMPARISON RELAY

1 Scheme Type/Designation

2 Operating time (min & max.) (ms)

3 VA burden

a) Current circuits (VA)

b) Voltage circuits (VA)

c) DC Circuits (VA)


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4 Type of Directional comparison provided -

(Continuous / Discontinuous)

5 Full details of literature, illustrations &

application checks submitted

(Yes/No)

6 Type of carrier channel required.

7 Particulars of carrier channel requireda) Transmitter frequency range (Hz)

b) Center frequency (Hz)

c) Transmitter output power (Watts)

8 Power supply required with variation tolerance (Volts, %)

9 Size of the equipment (mm)

10 Weight of the equipment (kg)

11 Type of operational phase selector

12 Ambient temperature range (Deg. C)

13 Dielectric test voltage (kV)

14 Impulse withstand test voltage (kV)

15 Disturbance test voltage (kV)

16 Type of operation mode of relay (independent /dependent)

17 The following details for Main I & II protection

schemes shall be submitted with the tender.

i) Detailed block diagram (Yes/No)

ii) Detailed internal Circuit diagram with terminal

details for external wiring and power supply

(Yes/No)

iii) Drawings giving details of dimensions & (Yes/No)

iv) Type test reports (Yes/No)

v) Is it suitable for 220 V DC (Yes/No)

vi) Phase selector distance included for single and

three phase tripping?

(Yes/No)

vii) DC/DC converter included? (Yes/No)

viii) Operating time (maximum ) of phase selector

relays for Zs/Z1 = 15.

(ms)

18 The relay shall not mal operate for CVT (Yes/No)

19 Stability angle limit range (Degrees)

20 Particulars of time/current, voltage setting ranges

and steps etc. as well as any other data required

for guaranteeing performance of the remaining

relays included in the specification (inclusive of

dead line charging relays, synchronizing check

relays, neutral displacement relays, over fluxing

relays etc.) shall be submitted herein.21 Standards to which the relays conform.

22 The Sensitivity and selectivity of receiver.

O. DISTANCE RELAYS

1 Make

2 Type

3 Type of distance measuring and number of

measuring elements

4 Starting unit


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a) Is a separate directional relay provided or (Yes/No)

b) The distance element is directional (Yes/No)

c) Type and number of starting unit

5 a)Number of zones

b) First zone element taps are variable in steps of

6 Second zone element taps are variable in steps of7 Third zone element taps are variable in steps of

8 If Mho unit has any OFF SET setting possible

and if so, range

(Yes/No)

9 Operating time

a) First zone timing (ms)

b) Second zone timing adjustable between (ms)

c) Third zone time adjustable between (ms)

10 Contact ratings

a) First zone (V, A,AC/DC)

b) Second zone (V, A,AC/DC)

c) Third zone (V, A,AC/DC)11 VA burden of each phase

a) Current coil (VA)

b) Potential coil (VA)

c) DC circuits (VA)

12 Whether seal in contacts are provided? (Yes/No)

13 Technical literature furnished (Yes/No)

14 Setting range of characteristic angle (Degrees)

15 Whether under voltage relays are provided (Yes/No)

16 Continuously variable ohmic range (Ohms)

17 Maximum resetting time (ms)

18 Range of adjustable offset features (%)

19 Residual compensation range (%)20 Continuous current rating (Amp)

21 Short time current rating and time (Amp, Sec)

22 Continuous voltage rating (Volts)

23 Whether high- speed trip relays are included. (Yes/No)

24 Whether power swing blocking incorporated. (Yes/No)

25 Whether CVT fuse failure protection included. (Yes/No)

26 Whether out of step tripping relays included. (Yes/No)

27 Number of potential free contacts provided. (Nos.)

28 Whether continuous DC supply supervision

provided.

(Yes/No)

29 Standard to which the relays conform.

P. AUTO RECLOSE RELAY1 Make

2 Type


4 Rated current and/or voltage (A, V)

5 Rated DC voltage (Volts)

6 Operating principle

7 Electromechanical/static/Numerical



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a) Normally Open (Nos.)

b) Normally Closed (Nos.)

10 Contacts - (self reset / hand reset)

11 Burden (VA)

12 Operating indicator provided? (Yes/No)13 Contact ratings and configuration


ii) Make and carry for 0.5 sec. (Amp)

iii) Break

Resistive load (Amp)

Inductive load (with L/R = 40 ms) (Amp)

14 Suitable for single and three phase (single phase/

three phase)

15 Single phase dead time setting range (Sec)

16 Three phase dead time setting range (Sec)

17 Reclaim time setting range (Sec)

18 Whether check synchronizing and dead linecharging relays included as a part of the auto

(Yes/No)

19 Whether four position selector switch is included (Yes/No)

20 Whether single shot or multi shot.

21 Whether pole discrepancy relay included (Yes/No)


23 Whether lock out facility provided (Yes/No)

24 Any other relevant information

Q. DIFFERENTIAL RELAYS

1 Makers name

2 Type


4 Maximum VA burdeni) Operating coil (VA)

ii) Restraining coil (VA)

5 Power consumption of

i) Operating coil (Watts)

ii) Restraining coil (Watts)

6 Is the slope setting variable (Yes/No)

7 Harmonic restraint provided or not with details. (Yes/No)

8 Is 5th harmonic by pass provided? (Yes/No)

9 Range of HT/LT ratios over which the relay can

be used

10 Details of auxiliary CTs.

11 Operating timea) At 2 x In (ms)

b) At 10 x In (ms)

c) At 5 x In (ms)


13 Contact rating

a) Make and carry continuously (Amp)

b) Make and carry for 0.5 sec. (Amp)


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c) Break Resistive load and inductive load (with

L/R = 40 milli sec.)

(Amp)

14 Type of mounting

15 No. of pair of make and break contacts (Nos.)

16 Pick up/drop off ratio

17 Resetting time (ms)18 Normal voltage (Volts)

19 Permissible variation in voltage (%)

20 Nominal current (in case of current operated (Amp)

21 Permissible variation in current (%)

22 Type of casing and available number of terminal (Nos.)

23 Standards to which the relays conform.

24 Whether Disturbance Recorder provided (Yes/No)

25 No. of instantaneous high set over current units (Nos.)

R.TRANSFORMER OVER FLUXING RELAY

1 Make2 Type





7 Solid state or electro mechanical or Numerical



i) Normally open (Nos.)

ii) Normally closed (Nos.)

10 Contacts self reset / hand reset

11 Burden(VA)


13 Contact rating


ii) Make and carry for 0.5 sec (Amp)

iii) Break


b) Inductive load (with L/R = 40 ms) (Amp)

14 Setting ranges

a) V/f (%)

b) Time for alarm (Sec)

c) Time for tripping (ms)

15 Detailed literature enclosed (Yes/No)

16 Resetting Ratio (%)

17 Whether provided on both HV and IV sides of the

transformers

(Yes/No)

S. OVER CURRENT AND EARTH FAULT

RELAY

I. NON - DIRECTIONAL

1 Makers name

2 Type & reference standard


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4 VA burden

i) Highest tap (VA)

ii) Lowest tap (VA)


6 Operating principle7 Thermal rating (Amp)


9 Power consumption

i) Highest tap (Watts)

ii) Lowest tap (Watts)

10 Time of operation at

i) 5 times tap setting current (ms)

ii) 10 times tap setting current (ms)

11 Type of characteristics (ms)

12 Descriptive literature/leaflets enclosed (Yes/No)

13 Contact ratings

i) Make and carry continuously (Amp)ii) Make and carry for 0.5 sec (Amp)

iii) Break resistive load and inductive load with 40

milli sec. time constants

(Amp)

14 No. of pair of make and break contacts (Nos.)

15 Directional sensitivity (%)

16 Over current unit setting range

i) Inverse time (ms)

ii) High set instantaneous unit

17 Maximum torque angle (Degrees)

II. DIRECTIONAL

1 Makers name

2 Type

3 Polarization

i) Current

ii) Potential


5 Potential coil rating (Volts)

6 VA burden

i) Current coil (VA)

ii) Highest tap (VA)

iii) Lowest tap (VA)

iv) Potential coil (VA)

7 Time of operation at

i) 5 times tap setting (ms)

ii) 10 times tap setting sec8 Type of characteristic

9 Descriptive literature / leaflet enclosed (Yes/No)

10 Applicable standards

11 Dimensions / weights (mm, Kg)

T.RESTRICTED EARTH FAULT RELAY

1 Make

2 Type


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7 Solid state or electro mechanical or Numerical

8 Thermal rating (Amp)9 Number of contacts



10 Case dimensions (Overall ) (mm x mmx mm)

11 Cut out dimensions (height x width) (mm x mm)

12 Weight (Kg)

13 Contacts self reset/ hand reset

14 Burden (VA)


16 Contacts ratings


ii) Make and carry for 0.5 secs (Amp)

iii) Break


b) Inductive load (with L/R = 40 ms) (Amp)

17 Operating time at 2 x setting current (ms)

18 Tuned to system frequency? (Yes/No)

19 Setting range (%)

20 Is it with high impedance with stabilizing resistor

or not? If so, value / range of stabilizing resistor

(Ohms)

21 Detailed literature / leaflet enclosed (Yes/No)

22 Current setting range (%)

23 Operating time (ms)

24 Voltage setting range (%)

25 No. of alarm and trip output contacts (Nos.)

U. BUS BAR PROTECTION RELAY

1 Make and type designation

2 General design (Static modular / EM /

3 Impedance type (Low / High/ moderately high)

4 Principle of operation

5 Time of operation

i) At 5 times the setting (ms)

ii) At 10 times the setting if applicable (ms)

6 Current rating and burden (Amp, VA)

7 DC supply (Volts)

8 Whether relay is suitable for all types of faults (Yes/No)

9 Whether separate CT core required? (Yes/No)

10 Whether aux. CTs required and if yes state

whether these are built in or to be provided

separately?

(Yes/No)

11 Whether relays can perform correctly even under

CT saturation condition?

(Yes/No)


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12 Whether relay remains stable for severe through

faults?

(Yes/No)

13 Whether check feature available built in (Yes/No)

14 Type of indicators provided? (Yes/No)

15 Output contact ratings and configuration? (Amp)

16 Maximum number of feeders/circuits that can beconnected to the relay

(Nos.)

17 Whether CT secondary open circuit supervision

facility available

(Yes/No)

18 Whether isolator auxiliary contact monitoring

provided

(Yes/No)

19 Non linear voltage limiting resistors included

for each zone?

(Yes/No)

20 Does the scheme give 100 % security and

reliability during all system operating conditions?

(Yes/No)

21 Any other relevant information


23 Whether high speed hand reset tripping relayprovided

(Yes/No)

24 Whether protection in/out switch provided (Yes/No)

25 Whether DC supply supervision / DC fail alarm

included

(Yes/No)

26 Whether lockout trip relay provided (Yes/No)

27 Is the relay self-monitoring (Yes/No)

28 Whether on line testing facility provided (Yes/No)

29 Descriptive literature / leaflets enclosed (Yes/No)

30 Dimensions / weights of the relay (mm, Kg)

V.CIRCUIT BREAKER FAILURE RELAY

1 Make

2 Type









9 VA Burden

a) At lowest tap (VA)

b) At highest tap (VA)

10 Operation indicator provided? (Yes/No)11 Contact ratings


ii) Make and carry for 0.5 secs (Amp)

12 Solid state or electro mechanical or numerical

13 Operating time

a) At 5 times tap setting (ms)

b) At 10 times tap setting (ms)


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b) 50 percent KPV (mA)

9 Internal impedance of

a) Primary (Ohms)

b) Secondary (Ohms)

10 Temperature rise (Deg. C)

11 Mounting details12 Overall dimensions (mm)

13 Any other details

14 One minute power frequency withstand voltage (kV rms)

15 Weight (Kg)

16 Location where these are to be used / mounted.

17 Descriptive literature / leaflets enclosed (Yes/No)

Y. PANEL WIRING

1 Insulation of wiring

2 Size of wiring conductor for the following

i) PT circuits (sq. mm)

ii) CT circuits (sq. mm)

iii) DC supply circuits (sq. mm)

iv) Other circuits (sq. mm)

3 Size of earthing bar for safety earthing ( sq. mm)

4 Type of terminal provided on wiring

5 Wiring conductor (aluminum/copper)

6 Whether ferrules and insulated sleeves provided? (Yes/No)

7 Type and size of lugs provided (sq. mm)


9 Descriptive literature / leaflets / circuit diagrams

enclosed?

(Yes/No)

Z TRANSDUCER

1 Make

2 Type

3 Applicable standards4 Rated input (A, V,

AC/DC)

5 Rated output (A, V,AC/DC)

6 Terminal connectors

a) No. of input terminal connectors (Nos.)

b) No. of output terminal connectors (Nos.)

7 Response time (Sec)

8 Accuracy class

9 AC ripple content (%)

10 Suitable for load resistance (Ohms)

11 Temperature range (Deg. C)

12 Dimensions/weight (mm, Kg)13 Descriptive literature / leaflets enclosed? (Yes/No)

AA. RELAY TESTING SET

1 Makers name

2 Type

3 Capacity of loading transformer (kVA)

4 Primary voltage (Volts)

5 Secondary current and voltage (A, V)

6 Electric / electronic timing meters


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a) Operating voltage (Volts)

b) Accuracy

7 Instruments

a) Make

b) Current range (Amp)

c) Voltage range (Volts)d) Accuracy class

e) Standards to which applicable

8 Descriptive literature enclosed (Yes/No)

9 Relay test kit supplied (Yes/No)

10 Distance Relay test kits supplied (Yes/No)

AB. BUS BAR TRIP RELAY

1 Make & type designation

2 General design

3 Operating Time (ms)

4 Number & rating of trip contacts (A, V, AC /DC)

5 Burden (VA)

6 Any other feature7 Applicable standards

8 Descriptive literature / leaflet enclosed? (Yes/No)

AC. TRIP CIRCUIT SUPERVISION RELAY


2 General design

3 DC rating (A, V)

4 Burden (VA)

5 Type of indication

6 Any other relevant details

AD. DC SUPPLY SUPERVISION RELAY

1 Manufacturers Name & Country

2 Type of Relay3 DC rating (A, V)

4 VA Burden (VA)

5 No. of potential free output contacts (Nos.)

6 Any other data

7 Time delay on drop off (ms)

8 Operation indication / flag provided? (Yes/No)


AE. MASTER TRIP RELAY FOR

TRANSFORMERS (for HV & LV intertrip)

1 Manufacturers Name & Country

2 Type of Relay

3 DC rating (A, V)

4 VA Burden (VA)

5 Operating time (ms)

6 Number of output contacts and contact rating (A, V,AC/DC)

7 Any other details


9 Descriptive literature / leaflets enclosed? (Yes/No)

AF . ENERGY METER



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2 Type

3 Accuracy

4 Whether suitable for 3 phase balanced and

unbalanced loads

(Yes/No)

5 Any other relevant data

AG. SELECTOR SWITCHES1 Make & type designation

2 Current rating of contacts (Amp)

3 Number of contacts in each position

a) Open (Nos.)

b) Closed (Nos.)

4 Number of ways (Nos.)

5 Number of positions (Nos.)

6 Type of handle

7 Whether stay put type (Yes/No)

8 Whether locking facility provided. (Yes/No)


10 Descriptive literature / leaflets enclosed?(Yes/No)

AH. BREAKER / ISOLATOR AUXILIARY

CONTACT MULTIPLICATION RELAY


2 Rating & burden (A, V, VA)

3 No. of NO/NC contacts (Nos.)

4 Rating of contacts (A, V)


6 Descriptive literature / leaflets enclosed? (Yes/No)

AI. EARTHING

1 Material of conductor

2 Size (sq. mm)

3 Type of end connection

4 Whether sufficient number of terminal connectors

and clamps are supplied?

(Yes/No)

5 Size of copper wires for earthing (sq. mm)

6 Detailed earthing scheme enclosed? (Yes/No)

AJ. CIRCUIT LABELS

1 Material, size, colour (mm x mm)

2 Size and colour of lettering (mm)

AK. MISCELLANEOUS

1 Tools

Whether following tools included in the scope

i) Special erection tools (Yes/No)

ii) Maintenance tools (Yes/No)

2 SparesWhether list of recommended spares for normal

maintenance for a period of 5 years furnished

(Yes/No)

3 Drawings

Whether following items submitted.

i) General arrangement drawings (Yes/No)

ii) Schematic drawings (Yes/No)

iii) Technical & descriptive literatures of all the

components supplied

(Yes/No)


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C.

ACDB DCDB

I. GENERAL

1 Rated Voltage (Volts)

2 Symmetrical short circuit withstand current ofswitchgear cubicle

(kA)

3 Degree of protection as per IS: 13947

a) Breaker / AC & DC distribution cubicles.

b) Bus bar chamber.

4 Cubicle sheet metal thickness for front, rear, sides

and top.

(mm)

5 Painting shade as per IS:5

a) External surface

b) Internal surface

6 Standard height, width & depth of typical panel.

a) Air circuit breaker panel (mm)

b) Switch fuse cubicle. (mm)c) AC/DC Distribution Board. (mm)

7 Width of cable alley (mm)

8 Earth bus bar size and material. (mm x mm)

9 Recommended dynamic loading for foundation (N)

10 Approximate weight of AC/DC Distribution (Kg)

11 Is extension possible in future. (Yes/No)

12 Clearance in air

a) Between phases (mm)

b) Between phase and earth (mm)

II. CURRENT TRANSFORMERS

1 Manufacturer's Name


3 Ratio

4 Rated output

5 Accuracy class

6 Instrument Security Factor (ISF).

7 Insulation level (kV rms)

8 Nominal rated voltage (kV)

9 Short time thermal rating for 1 sec. (kA rms )

10 Class of insulation.

III. POTENTIAL TRANSFORMERS

1 Manufacturer's Name


3 Rated primary voltage (Volts)4 Rated Secondary voltage (Volts)

5 Accuracy class

6 Insulation level (kV rms)

7 Rated Burden (VA)

8 Over voltage factor

9 Class of insulation

IV. AIR CIRCUIT BREAKER


No.Description Unit

AC/DC DISTRIBUTION BOARD.


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ACDB DCDB


No.Description Unit

1 Name of manufacturer and country

2 Manufacturer's type designation


4 Rated voltage (kV)

5 Rated current at design ambient temperature (Amps)6 Continuous current at site ambient temperature. (Amps)

7 Rated symmetrical breaking current (kA)

8 Rated making current (kA)

9 Short time current rating (kA, sec)

10 Short circuit performance category

11 Temperature rise of main contacts when carrying

continuous current

(Deg. C)

12 Thickness of silver coating for main contacts (microns)

13 Number of operations circuit breaker can make

without inspection replacement of contacts or

other parts at 100% rated breaking current.

14 a) Number of auxiliary contacts provided and theirrating.

(Amps)

b) Total operating time (ms)

c) Whether trip free or fixed trip type

15 Operating mechanism (for ACB only.)

a) Motor rating (V, A, Watts)

b) Time for fully charging the closing spring (Sec)

c) Emergency manual charging facility provided (Yes/No)

d) Limits of voltage for satisfactory operation of

following devices, as percentage of normal

i) Motor (%)

ii) Closing Coil (%)

iii) Tripping Coil (%)

16 Air break switches

a) Type, make


c) Rated current (Amps)

d) Type and material of contacts

e) Applicable standard

f) Maximum through fault current withstand (kA)

g) Door inter locks provided (Yes/No)

h) Rated making and breaking capacity (kA)

17 Fuses

a) Make

b) Typec) Rupturing capacity (kA)

d) Peak cut-off current (kA)

e) Whether mounted on insulated carrier (Yes/ No)

18 Rated operating Duty

V. BUS BARS AND INSULATORS

1 Material and applicable standard


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ACDB DCDB


No.Description Unit

2 Bare/Painted/Epoxy insulated/Sleeved

3 Minimum clearance

a) Phase to phase (mm)

b) Phase to earth (mm)

4 Continuous current rating at ambient temperature (Deg. C)5 Minimum Cross section provided for

a) Horizontal bus bar (sq. mm)

b) Vertical bus bar (sq. mm)

6 Short time current rating for 1 sec. (kArms)

7 Material of the support insulators.

8 Temperature rise over ambient temperature for

continuous current rating

(Deg. C)

9 Whether bus joints are silver faced (Yes / No)

10 Dynamic current withstand rating (kApeak)

VI. CONTACTORS

1 Make

2 Type and applicable standard3 No. of poles (Nos.)

4 Rated voltage of main and auxiliary contacts. (Volts)

5 Limits of operation

a) Supply voltage variation (+/-%)

b) Supply frequency variation for closing. (+/-%)

c) Drop out voltage (Volts)

6 Rated breaking capacity (kA)

7 Rated making capacity (kA)

8 Rated thermal current (kA)

9 Maximum recommended back up HRC fuse size. (Amp)

10 Rated operating duty

11 Rated voltage of coils (Volts)

VII. AUXILIARY CONTACTOR

1 Make

2 Type

3 Coil voltage (Volts)

4 Coil burden (VA)

5 No. of contacts and their rating (V, A,AC/DC)

VIII. CONTROL / SELECTOR SWITCH

1 Make

2 Type

3 Type of handle

4 Number of contacts (Nos.)

5 Rating of contacts (V, A,AC/DC)

6 No. of positions (Nos.)

7 Contact material and plating

IX. PUSH BUTTONS

1 Make

2 Contact type

3 Number of contacts ( NO+ NC) (Nos.)


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ACDB DCDB


No.Description Unit

4 Contact rating (V, A,AC/DC)

X. SPACE HEATERS

1 Make

2 Type3 Rated Voltage (Volts)

4 Thermostat setting range (Deg. C)

5 Heater output (Watts)

XI. WIRING AND TERMINAL BLOCKS

1 Voltage grade of wires (Volts)

2 Minimum size of conductor for

a) Power wiring (sq. mm)

b) Control wiring (sq. mm)

3 Type of control terminal block on:-

a) Fixed portion and draw out portion

b) Switchgear and breaker

4 Make and type of terminal blocks

5 Current rating of terminal blocks (Amp)

6 Insulation of wires

7 Conductor material

XII. RELAYS

1 Make

2 Type

3 Application


5 Coil burden (VA)

6 Setting range (%)

7 Number of contacts (Nos.)

8 Contact rating (V, A,

AC/DC)9 Contacts - (self reset or hand reset)


11 Time of operation (ms)

XIII. INDICATING LAMPS

1 Make

2 Type

3 Voltage (Volts)

4 Series resistor value and rating (Ohms,Am )

XIV. INDICATING INSTRUMENTS

1 Voltmeter

a) Make

b) Typec) Accuracy class

d) Voltage coil rating (Volts)

e) Voltage coil burden (VA)

f) Case size (mm x mm)

g) Angle of defelection (Degrees)

h) Scale length

2 Ammeter


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ACDB DCDB


No.Description Unit

a) Make

b) Type

c) Accuracy class

d) Current coil rating (Amp)

e) Current coil burden (VA)f) Case size (mm x mm)

g) Angle of defelection (Degrees)

h) Scale length

XV. ENCLOSURES

1 Whether all the drawings as indicated in the

specification enclosed.

(Yes/No)

2 Whether all type test reports enclosed (Yes/No)

3 Whether characteristics of various types of relays

for MCCB enclosed.

(Yes/No)

4 Whether calculations furnished in support of

adequacy of bus bar size (AC bus/DC bus) for

specified current rating.

(Yes/No)


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D.

Sl. No. Description Unit 3Cx300 3.5Cx240

1 Name & Address of the manufacturer


3 Cable type designation

4 Voltage rating (Volts)

5 Conductor a) Material of conductor and flexibility class as per IS:8130

b) Size of conductor (sq. mm)

c) Is conductor stranded (Yes/No)

d) Stranded conductor

i) Number of strands in each core

ii) Size of strand (sq. mm)

iii) Shape of the stranded conductor

iv) Maximum DC resistance at 20 deg C (Ohms)/

Km)

6 Number of cores

7 Insulation

a) Insulation material and type designation

b) Minimum thickness of insulation (mm)

c) Tolerance on the measured value of thickness (%)

d) Minimum volume resistivity at 27 deg. C, 70 deg. C and

90 deg. C

(Ohm-cm)

8 Sheath

a) Material for inner sheath, type of sheathing (extruded or

wrapped) and type designation as per IS:5831.

b) Material for outer sheath, type of sheathing (extruded or

wrapped) and type designation as per IS:5831.

c) Thickness of inner sheath and tolerance on measured

value.

(mm, %)

d) Thickness of outer sheath and tolerance on measured

values.

(mm, %)

9 Armour a) Material

b) Shape

c) Dimension (mm)

10 a) Overall diameter of cable (mm)

b) Tolerance on diameter (%)

11 a) Minimum tensile strength of insulation (kg/sq. cm)

b) Minimum elongation at break. (%)

12 a) Minimum tensile strength of sheath. (kg/sq. cm)

b) Minimum elongation at break (%)

13 a) Tensile strength of the armour (kg/sq. cm)b) Elongation after break (%)

14 High voltage test and duration (PVC cables)

a) At room temperature (kV, mins.)b) Under water (kV, mins.)

15 XLPE cable

a) High voltage test (kV, mins.)

b) Short circuit current rating for 1 sec. (kA)

c) Short circuit current rating for armour (kA, Secs)

16 a) Current carrying capacity in air and corresponding

assum tions/conditions of installation

(Amp)

POWER AND CONTROL CABLE - XLPE CABLE


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D.

Sl. No. Description Unit 3Cx300 3.5Cx240

POWER AND CONTROL CABLE - XLPE CABLE

b) Current carrying capacity under following conditions:

i) Ambient temperature of 38 Deg. C (Amp)

ii) Cable laid in covered cable trenches (Amp)

iii) 3 to 4 cable trays / racks in trench . (Amp)iv) 5 to 6 cables per tray and touching each other. (Amp)

17 Insulation resistance at 27 De . C Ohm/km18 Capacitive reactance per Km. (Ohm/km)

19 Inductive reactance per Km. (Ohm/km)

20 Minimum bending radius. (mm)

21 Short circuit current rating for 1 sec. (kA)

22 Conductor temperature rise during

a) Normal operation (Deg. C)

b) Short circuit (Deg. C)

23 Weight of cable per Km (Kg/km)\

24 a) Standard length of cable per drum (m)

b) Tolerance on length of cable per drum (%)

25 Net weight of drum length of cable (Kg)

26 Method of core identification fora) Cable upto five cores

b) Cable with more than five cores

27 Please indicate writing YES or NO whether the

following tests have been carried out.

i) Ageing test (Yes/No)

ii) Loss of mass test (Yes/No)

iii) Cold bend test (Yes/No)

iv) Cold impact test (Yes/No)

v) Heat shock test (Yes/No)

vi) Thermal stability as per IEC-540 (Yes/No)

vii) Oxygen index test and temperature index test as per

ASTM D-2863.

(Yes/No)

viii) Rodent and termite proof test (Yes/No)ix) Fire retardant test (Yes/No)

28 Enclosures

a) Whether all type test reports enclosed (Yes/No)

b) Whether technical literature enclosed (Yes/No)

c) Whether tables giving rating factors for variation in

standard conditions of installation enclosed

(Yes/No)

d) Whether relevant drawings enclosed (Yes/No)


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D.

Sl. No. Description Unit 3.5Cx70 3.5Cx35 4Cx16 4Cx6 2Cx6

1 Name of the manufacturer and

country.


3 Cable type designation

4 Voltage rating (Volts)5 Conductor

a) Material of conductor and

flexibility class as per IS:8130

b) Size of conductor (sq. mm)

c) Is conductor stranded (Yes/No)

d) Stranded conductor

i) Number of strands in each

core

ii) Size of strand (sq. mm)

iii) Shape of the stranded

conductor

iv) Maximum DC resistance at

20 deg C

(Ohms) /

Km

6 Number of cores7 Insulation

a) Insulation material and type

designation

b) Minimum thickness of (mm)

c) Tolerance on th

Documents

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