· Web viewIEC 62271-100, 62271-102, 62271-1, 62155, 60044-1, 60044-5, 60383, 60815 1.2. Rated...

4. SCHEDULES OF TECHNICAL INFORMATION

Section VI – Requirements of 677Environmental Guidelines for Contractors

CONTENTS

A 400 kV OPEN TERMINAL SWITCHGEAR

B 220 kV OPEN TERMINAL SWITCHGEAR

C EARTHING AND LIGHTNING PROTECTION

D PROTECTION AND INDICATION SYSTEM

E TARIFF METERING SYSTEM

F FAULT MONITORING SYSTEM

G 11kV XLPE INSULATED CABLE SYSTEM (with solid bonding)

H SUBSTATION CONTROL SYSTEM

I DIESEL GENERATOR

J LV SERVICES EQUIPMENT

K 400/220kV POWER TRANSFORMERS (AIS-AIS)

L 400kV SHUNT REACTOR

M 11/0.415kV; 500kVA EARTHING/AUXILIARY TRANSFORMERS (CAF-CAF)

N NEUTRAL EARTHING RESISTOR

O 400kV OVERHEAD LINE

P 220 kV OVERHEAD LINE


A. 400 kV OPEN TERMINAL SWITCHGEAR UNIT DATA

Required Offered

1. GENERAL

1.1. Standards IEC IEC 62271-100, 62271-102, 62271-1,

62155, 60044-1, 60044-5, 60383, 60815

1.2. Rated voltage kV 420

1.3. System Voltage kV 400

1.4. Rated frequency Hz 50

1.5. Rated lightning impulse withstand voltage (at altitude <1000m)

- Phase to earth - Phase to phase

KVp

KVp

1425

1425

- Across the isolating distance kVp 1425 (+240)

1.6. Rated switching impulse withstand voltage (at altitude <1000m)

- Phase to earth - Phase to phase

KVp

KVp

1050

1575

- Across the isolating distance kVp 900 (+345)

1.7. Rated power frequency withstand voltage (at altitude <1000m)

- Phase to earth kV 520



Required Offered

- Phase to phase kV 520

- Across the isolating distance kV 610

1.8. Rated short-time withstand current (1 s) kA 40

1.9. Rated peak withstand current kA 100

1.10. Rated Current

- at 40 oC A 4000

- at 50 oC (Contractor to confirm by calculation) A

1.11. Material of HV conductor

1.12. Material of contacts

1.13. Minimum factors of safety for switchgear

- Busbars or other connections based on elastic limit

2.5

- Complete insulators based on electro-mechanical test

2.5

- Insulator metal fittings based on elastic limit 2.5

- Steel structures based on elastic limit of tension members and on cripping loads of compression members

2.5

- Foundations for structures against overturning or uprooting under maximum simultaneous working loadings 2.5



Required Offered

1.14. Creepage distance (based on Um) mm/kV 31

1.15. Seismic factor

2. CIRCUIT BREAKER

2.1. Manufacturer & Place of manufacturing

2.2. Type designation

2.3. Type SF6 single pole

2.4. Standards 62271-1, IEC 62271-100, 62271-101,

62271-110, 60376, 60480

2.5. Rated operating sequence O -0.3 sec- CO -3 min - CO

2.6. Auto reclosing O -0.3 sec- CO -3 min - CO

2.7. Rated making current KAp 100

2.8 Rated breaking current kA 40

Rated breaking current (asymmetrical) KA To IEC 62271-100

- %dc %dc

2.9. Rated breaking current under out-of-phase conditions

kA 10



Required Offered

2.10. First phase to clear factor 1.3

2.11 Transient Recovery Voltages TRVs To IEC 62271-100

2.12. Rated capacitive breaking current To IEC 62271-100

Rated line charging breaking current A

Rated cable charging breaking current A

Rated Single/Back to Back Capacitor bank breaking current

A

2.13. Rated small inductive/reactor breaking currents of: To IEC 62271-110

- small inductive A

- reactor A

2.14. Maximum overvoltage factor on any switching duty pu 2.3

2.15. Maximum overvoltage factor when interrupting rated line/cable/capacitor bank charging currents

pu 2.3

2.16. Maximum overvoltage factor when switching small inductive/reactor currents

pu 2.3

2.17. Maximum total break time (trip initiation to final arc extinction)

ms 60

2.18. Opening time (trip initiation to contact separation)

- Without current ms



Required Offered

- With 100% rated breaking current ms

2.19. Maximum time interval between opening of first and last phase of three phase circuit breakers

ms 3

2.20. Maximum time interval between opening of interrupters of one phase

- -

2.21. Closing time from energisation of close coil to latching of circuit breaker in fully closed position

ms

2.22. Making time (energisation of close coil to contact touch)


- 100% making current ms

2.23. Maximum time interval between closure of first and last phase of three phase circuit breaker

ms 3.3

2.24. Maximum time interval between closure of interrupters of one phase

- -

2.25. Minimum time from extinction of main arc to contact make during auto-reclosing duty

ms

2.26. Mechanical life of circuit breaker and mechanism in No. of operations

10,000

2.27. Electrical contact life in number of operations at:



Required Offered

- Rated current - 4000 A

- Fault current - 40kA 15 to 20

- Cumulative ampere rating

2.28. Number of current interrupting break units in series per phase

Two

2.29. Type of operating mechanism Motor charged spring operated

2.30. Type of power device (motor charged)

- For closing Spring or hydraulic

- For opening Spring or hydraulic

2.31. Hand operating facility Yes

2.32. Manual spring release (suitably positioned to avoid accidental operation)

Yes

2.33. Mechanical on/off indicator Yes

2.34. Mechanical spring charge / discharge indication Yes

2.35. Charging time S

2.36. Number of trip coils per phase 2

2.37. Number of close coils per phase 1



Required Offered

2.38. Nominal control and operating voltage V 110 DC

2.39. Nominal heater voltage V 240 AC

2.40. Rated power of trip coil W

2.41. Rated power of close coil W

2.42. Rated motor power W

2.43. Total load of heaters for circuit breaker W

2.44. Mass of circuit breaker complete (three pole) kg

2.45. Mass of single phase circuit breaker Kg -

2.46 Emergency Trip Facility Yes

3. ISOLATORS

3.1. Manufacturer & Place of Manufacturing




Required Offered

3.3. Type of operating mechanism Motor

3.4. Standards IEC 62271-102,

IEC 62271-1

3.5. Maximum capacitive current that can be interrupted by the isolator

A

3.6. Total time from initiation of opening operation to isolator in fully open position

S

3.7 Time from contact separation to extinct of capacitive arc

S

3.8 Total time from initiation of opening operation to time when isolator gap can withstand phase voltage

S

3.9 Hand operating facility Yes

3.10 Locking arrangement in on/off position Yes

3.11 Nominal control and operating voltage V 110 DC

3.12 Automatic isolation of control supplies when lock off

Yes

3.13. Accessibility to operating mechanism from ground level

Yes


3.15. Rated power of operation coil W



Required Offered


3.17. Total load of heaters for isolator W

3.18. Total mass of three phase isolator complete kg

3.19 Mass of single phase isolator kg

3.20. Contact type

3.21. Type of interlocking

4. EARTHING SWITCH

4.1. Manufacturer & place of manufacturing



4.4. Standards IEC 62271-102, 62271-1


4.6. Locking arrangement in on/off position Yes



Required Offered


4.8. Automatic isolation of control supplies when lock off

Yes


Yes


4.11. Total load of heaters for earthing switch W

4.22. Total mass of earthing switch complete kg

5. CURRENT TRANSFORMER


5.2. Type Post

5.3. Standards IEC 62271-1, 60044-1

5.4. Rated continuous thermal current at 40oC Rated extended primary current

5.5. Current transformers Refer to Tender Drawings



Required Offered

- Number of cores

- Rated extended primary current 120%

- Ratio (TR – turns ratio)

I core A

II core A

III core A

IV core A

- Class

I core

II core

III core

IV core

- Knee point voltage (Ek)

I core V

II core V

III core V

IV core V

- Exciting current (IE) at Ek

I core mA

II core mA

III core mA

IV core mA

- Rated output (burden to be 25-100% rated burden) I core VA

II core VA

III core VA



Required Offered

IV core VA

Total mass of single phase current transformer complete

kg

6. CAPACITIVE VOLTAGE TRANSFORMERS


6.2. Type Capacitive

6.3. Standards IEC 60044-5

6.4. Maximum permissible partial discharge level

Um

pC 10


1.2Um /3

pC 5

6.6. Method of suppressing ferroresonance phenomena

6.7. Voltage transformer Refer to Tender Drawings

- Number of secondaries

- Rated transformation ratio kV



Required Offered

- Rated accuracy class

I secondary

II secondary

- Rated output (burden to be 25-100% rated burden) I secondary VA

II secondary VA

- Mass of single phase voltage transformer kg

7 METERING INSTRUMENT TRANSFORMERS

7.1 Manufacturer

7.2 Type designation Post

7.3 Standards IEC 60044-3, 61869

7.4 Rated continuous thermal current at 400C Rated extended primary current

7.5 Current transformers

- Number of cores




Required Offered


• I core

• II core

- Class

• I core

• II core


• I core

• II core


• I core mA

• II core mA

- Rated output (burden to be 25- 100% rated burden)

• I core VA

• II core VA


V

V

mA

mA

VA

VA

Refer to Tender Drawings



Required Offered

kg

7.6 Voltage transformers


- Maximum permissible partial discharge level Um

- Maximum permissible partial discharge level 1.2Um/√3

- Method of suppressing Ferro resonance


- Voltage factor, PU – BS EN 61869


• I secondary

• II secondary

- Rated output (burden to be 25-100% rated burden)

• I secondary

• II secondary

- Mass of single phase voltage transformer

pC

pC


10

5

1.5PU, 30secs



Required Offered

VA

VA

kg

8. BUSBARS AND CONNECTIONS

8.1 Manufacturer

8.2 Type (flexible or tubular)

8.3 Material

8.4 Short-circuit current rating / duration KA/s

8.5 Normal current rating

- at 40oC- at 50oC

A

A

8.6 Maximum continuous current rating A

8.7 Flexible conductors

- stranding- nominal cross-sectional area- outer diameter- no. of conductors per bundle- spacing between conductors

mm2

mm

mm



Required Offered

8.8 Tubular conductors

- nominal cross-sectional area- outer diameter- inner diameter

mm2

mm

mm

8.9 Maximum stress at surface of flexible conductor kV/mm

8.10 Radio influence voltage level measured at 1.1 times Us/3 at 1 MHz

µV

9 POST TYPE INSULATORS

9.1 Manufacturer

9.2 Type designation

9.3 Insulator material

9.4 Number of units in complete post insulator

9.5 Length of each unit mm

9.6 Mass of complete post insulator kg

9.7 Maximum cantilever working load (complete post insulator)

N



Required Offered

9.8 Minimum cantilever breaking load, upright (complete post insulator)

N

9.9 Power frequency withstand voltage dry: wet kV

9.10 Basic insulation level kVp

9.11 Minimum dry/wet switching surge withstand level kVp


µv

10 TENSION AND SUSPENSION INSULATORS

10.1 Manufacturer



10.4 Number of units in string mm

10.5 Greatest diameter of units mm

10.6 Distance between centres of units mm



Required Offered

10.7 Length of string, overall mm

10.8 Mass of string complete with all fittings kg

10.9 Maximum working load N

10.10 Power frequency withstand voltage of complete string

kV

10.11 Basic insulation level of complete string kVp

10.12 Minimum wet switching surge withstand level of complete string

kVp

10.13 Radio influence voltage measured at 1.1 times Us/3 at 1 MHz

µv

11. 400KV SURGE ARRESTERS

11.1 Type MOA

11.2

11.3

11.4

11.5

11.6

11.7

11.8

Standard

Rated/system voltage

Maximum overvoltage factor on the system due to any switching duty

Rated system frequency

Condition of system neutral

Nominal Discharge current

Energy capability as per IEC 60099-4

Rated Voltage – MOA

kV

pu

Hz

kAcrest

kJ/kV

kV

IEC 60099-4

420/400

2.3

50

Solid

20

360



Required Offered

11.9

11.10

11.11

11.12

11.13

Long duration discharge class as per IEC 99-1

Maximum Continuous Operating Voltage (COV)

TOV capability for1sec10sec

Maximum residual voltage with current waveSwitching Surges – 1kA/2kA8/20 μs – 5kA8/20 μs – 20Ka

Discharge current withstand strengthHigh current 4/10 μsLow current 2000 μs

Class

kV

kVkV

kVkVkV

KAp

KAp

4

260 min

To IEC 60099-4To IEC 60099-4To IEC 60099-4

To IEC 60099-4To IEC 60099-4

12..

12.1

12.2

Manufacturer quality system in accordance withISO 9000Date of issue

Validity

Yes

Latest

Valid Certificates - Yes13. Type test certificate to be issued by independent

laboratory or independently witnessed type test certificate to be submitted

Yes

Note:- Technical parameters stated above to be confirmed following nominated Contractor’s insulation co-ordination study.


B. 220 kV OPEN TERMINAL SWITCHGEAR UNIT DATA

Required Offered

1. GENERAL

1.1. Standards IEC IEC 62271-100, 62271-102, 62271-1,

62155, 60044-1, 60044-5, 60383,

60815


1.3. System Voltage kV 220


1.5. Rated lightning impulse withstand voltage (at altitude <1000m)

- Phase to earth KVp 1050

- Across the isolating distance kVp 1200

1.6. Rated power frequency withstand voltage (at altitude <1000m)

- Phase to earth kV 460

- Across the isolating distance kV 530

1.7. Rated short-time withstand current (1 s) kA 31.5

1.8. Rated peak withstand current kA 80

1.9. Rated Current

- at 40 oC A 2000



Required Offered

- at 50 oC (Contractor to confirm by calculation) A

1.10. Material of HV conductor

1.11. Material of contacts

1.12. Minimum factors of safety for switchgear

- Busbars or other connections based on elastic limit

2.5

- Complete insulators based on electro-mechanical test

2.5

- Insulator metal fittings based on elastic limit 2.5

- Steel structures based on elastic limit of tension members and on cripping loads of compression members

2.5

- Foundations for structures against overturning or uprooting under maximum simultaneous working loadings

2.5

1.13. Creepage distance (based on Um) mm/kV 31

1.14. Seismic factor

2. CIRCUIT BREAKER



2.3. Type SF6 single pole

2.4. Standards 62271-1, IEC 62271-100, 62271-101,

62271-110, 60376, 60480



Required Offered

2.5. Rated operating sequence O -0.3 sec- CO -3 min - CO

2.6. Auto reclosing O -0.3 sec- CO -3 min - CO

2.7. Rated making current KAp 80

2.8 Rated breaking current kA 31.5

Rated breaking current (asymmetrical) KA To IEC 62271-100

- %dc %dc

2.9. Rated breaking current under out-of-phase conditions

kA 10

2.10. First phase to clear factor 1.5

2.11 Transient Recovery Voltages TRVs To IEC 62271-100

2.12. Rated capacitive breaking current To IEC 62271-100

Rated line charging breaking current A

Rated cable charging breaking current A

Rated Single/Back to Back Capacitor bank breaking current

A

2.13. Rated small inductive/reactor breaking currents of: To IEC 62271-110

- small inductive A

- reactor A



Required Offered

2.14. Maximum overvoltage factor on any switching duty pu 2.3

2.15. Maximum overvoltage factor when interrupting rated line/cable/capacitor bank charging currents

pu 2.3

2.16. Maximum overvoltage factor when switching small inductive/reactor currents

pu 2.3

2.17. Maximum total break time (trip initiation to final arc extinction)

ms 60

2.18. Opening time (trip initiation to contact separation)


- With 100% rated breaking current ms

2.19. Maximum time interval between opening of first and last phase of three phase circuit breakers

ms 3

2.20. Maximum time interval between opening of interrupters of one phase

- - -

2.21. Closing time from energisation of close coil to latching of circuit breaker in fully closed position

ms

2.22. Making time (energisation of close coil to contact touch)


- 100% making current ms



Required Offered

2.23. Maximum time interval between closure of first and last phase of three phase circuit breaker

ms 3.3

2.24. Maximum time interval between closure of interrupters of one phase

- - -

2.25. Minimum time from extinction of main arc to contact make during auto-reclosing duty

ms

2.26. Mechanical life of circuit breaker and mechanism in No. of operations

10,000

2.27. Electrical contact life in number of operations at:

- Rated current -2000 A

- Fault current - 31.5 kA 15 to 20

- Cumulative ampere rating

2.28. Number of current interrupting break units in series per phase

One

2.29. Type of operating mechanism Motor charged spring operated

2.30. Type of power device (motor charged)

- For closing Spring or hydraulic

- For opening Spring or hydraulic


2.32. Manual spring release Yes



Required Offered

2.33. Mechanical on/off indicator Yes

2.34. Mechanical spring charge / discharge indication Yes

2.35. Charging time s

2.36. Number of trip coils per phase 2

2.37. Number of close coils per phase 1



2.40. Rated power of trip coil W

2.41. Rated power of close coil W


2.43. Total load of heaters for circuit breaker W

2.44. Mass of circuit breaker complete (three pole) kg



Required Offered

2.45. Mass of single phase circuit breaker - - -

2.46 Emergency Trip Facility Yes

3. ISOLATORS

3.1. Manufacturer & Place of Manufacturing



3.4. Standards IEC 62271-102,

IEC 62271-1

3.5. Maximum capacitive current that can be interrupted by the isolator

A

3.6. Total time from initiation of opening operation to isolator in fully open position

s

3.7 Time from contact separation to extinct of capacitive arc

s

3.8 Total time from initiation of opening operation to time when isolator gap can withstand phase voltage

s



Required Offered

3.9 Hand operating facility Yes

3.10 Locking arrangement in on/off position Yes

3.11 Nominal control and operating voltage V 110 DC

3.12 Automatic isolation of control supplies when lock off

Yes


Yes


3.15. Rated power of operation coil W


3.17. Total load of heaters for isolator W

3.18. Total mass of three phase isolator complete kg

3.19 Mass of single phase isolator kg

3.20. Contact type

3.21. Type of interlocking



Required Offered

4. EARTHING SWITCH

4.1. Manufacturer & place of manufacturing



4.4. Standards IEC 62271-102, 62271-1


4.6. Locking arrangement in on/off position Yes


4.8. Automatic isolation of control supplies when lock off

Yes


Yes


4.11. Total load of heaters for earthing switch W



Required Offered

4.22. Total mass of earthing switch complete kg

5. CURRENT TRANSFORMER


5.2. Type Post

5.3. Standards IEC 62271-1, 60044-1

5.4. Rated continuous thermal current at 40°C Rated extended primary current

Note: All Cl PX CTs shall be ISN 1.2 A

5.5. Current transformers Refer to Tender Drawings

- Number of cores



I core A

II core A

III core A

IV core A

- Class

I core



Required Offered

II core

III core

IV core


I core V

II core V

III core V

IV core V


I core mA

II core mA

III core mA

IV core mA

- Rated output (burden to be 25-100% rated burden) I core VA

II core VA

III core VA

IV core VA


kg

6. CAPACITIVE VOLTAGE TRANSFORMERS


6.2. Type Capacitive



Required Offered



Um

pC 10


1.2Um /3

pC 5

6.6. Method of suppressing ferroresonance phenomena

6.7. Voltage transformer Refer to Tender Drawings


- Rated transformation ratio kV


I secondary

II secondary

- Rated output (burden to be 25-100% rated burden) I secondary VA

II secondary VA

- Mass of single phase voltage transformer kg

7 METERING INSTRUMENT TRANSFORMERS



Required Offered

7.1 Manufacturer

7.2 Type designation Post

7.3 Standards IEC 60044-3, 61869

7.4 Rated continuous thermal current at 400C Rated extended primary current


- Number of cores

- Rated extended primary current


• I core

• II core

- Class

• I core

• II core


• I core

• II core

- Exciting current (IE) at EkV

120%




Required Offered

• I core mA

• II core mA

- Rated output (burden to be 25- 100% rated burden)

• I core VA

• II core VA


V

mA

mA

VA

VA

kg

7.6 Voltage transformers


- Maximum permissible partial discharge level Um

- Maximum permissible partial discharge level 1.2Um/√3

- Method of suppressing Ferro resonance


pC

pC


10

5



Required Offered

- Voltage factor, PU – BS EN 61869


• I secondary

• II secondary

- Rated output (burden to be 25-100% rated burden)

• I secondary

• II secondary

- Mass of single phase voltage transformer

VA

VA

kg

1.5PU, 30secs


µV

8. BUSBARS AND CONNECTIONS

8.1 Manufacturer

8.2 Type (flexible or tubular)



Required Offered

8.3 Material

8.4 Short-circuit current rating / duration KA/s

8.5 Normal current rating

- at 40oC- at 50oC

A

A

8.6 Maximum continuous current rating A

8.7 Flexible conductors

- stranding- nominal cross-sectional area- outer diameter- no. of conductors per bundle- spacing between conductors

mm2

mm

mm

8.8 Tubular conductors

- nominal cross-sectional area- outer diameter- inner diameter

mm2

mm

mm

8.9 Maximum stress at surface of flexible conductor kV/mm


µV



Required Offered

9 POST TYPE INSULATORS

9.1 Manufacturer



9.4 Number of units in complete post insulator

9.5 Length of each unit mm

9.6 Mass of complete post insulator kg

9.7 Maximum cantilever working load (complete post insulator)

N

9.8 Minimum cantilever breaking load, upright (complete post insulator)

N

9.9 Power frequency withstand voltage dry: wet kV

9.10 Basic insulation level kVp

9.11 Minimum dry/wet switching surge withstand level kVp

9.12 Radio influence voltage level measured at 1.1 µv



Required Offered

times Us/3 at 1 MHz

10 TENSION AND SUSPENSION INSULATORS

10.1 Manufacturer



10.4 Number of units in string mm

10.5 Greatest diameter of units mm

10.6 Distance between centres of units mm

10.7 Length of string, overall mm

10.8 Mass of string complete with all fittings kg

10.9 Maximum working load N

10.10 Power frequency withstand voltage of complete string

kV



Required Offered

10.11 Basic insulation level of complete string kVp

10.12 Minimum wet switching surge withstand level of complete string

kVp

10.13 Radio influence voltage measured at 1.1 times Us/3 at 1 MHz

µv

11. 220KV SURGE ARRESTERS

11.1 Type MOA

11.2 Standard IEC 6099-4

11.3 Rated/system voltage kV 245/220

- Maximum overvoltage factor on the system due to any switching duty

pu 2.3

11.4 Rated system frequency Hz 50

11.5 Condition of system neutral Solid

11.6 Nominal Discharge current kAcrest 10



Required Offered

11.7 Energy capability as per IEC 60099-4 kJ/kV

11.8 Rated Voltage – MOA kV

11.9 Long duration discharge class as per IEC 6099-4 Class 3

11.10 Maximum Continuous Operating Voltage (COV) kV To IEC 60099-4

11.11 TOV capability for

- 1sec- 10sec

kV

kV

11.12 Maximum residual voltage with current wave

- Switching Surges – 1kA/2kA- 8/20 μs – 5kA- 8/20 μs – 20Ka

kV

kV

kV

To IEC 60099-4

To IEC 60099-4

To IEC 60099-4

11.13 Discharge current withstand strength

- High current 4/10 μsLow current 2000 μs

KAp

KAp

To IEC 60099-4

To IEC 60099-4

12. Type test certificate to be issued by independent laboratory or independently witnessed type test certificate to be submitted

Yes


C. EARTHING AND LIGHTNING PROTECTION UNIT DATA

Required Offered

1. EARTHING SYSTEM

1.1. Manufacturers

1.2. Standard Applied

The following standards shall apply to the earthing installations and to the accessories:

Guide for safety in A.C. substation grounding Earthing system in A.C. installation for rated voltages

above 1000 VIEEE80 & 81

VDE 0141

1.3. Physical Properties of Copper

The most important physical properties of copper used for the earthing conductors:

Density kg/dm3 8.89

Electrical resistivity at 20C mm2/m 0.0176

Melting point C 1083

Current density at which the conductor temperature rises from 50C to 300C in a time of 1 s if all heat is retained in conductor

A/mm2 190

1.4. Physical Properties of Lead-Sheathed Copper

The most important physical properties of lead-sheathed copper used for the earth electrodes:



Required Offered

Thickness of lead sheath mm 2.0

Electrical resistivity of copper at 20C mm2/m 0.0176

Copper melting point C 1083

Lead melting point C 327

Current density at which the conductor temperature rises from 40C to 150C in a time of 1 s if all heat is retained in conductor

A/mm2 140

1.5. Earthing Conductors

1.5.1. Stranded copper conductors

The following stranded copper conductor will be used as earthing conductors:

Cross-section area mm2

Number of wires No.

Diameter of each wire mm

Conductor diameter mm

Density kg/m


Number of wires No.



Density kg/m



Required Offered

Cross-section area mm

Number of wires pcs



Density kg/m

1.5.2. Copper Flat Bars

The following copper flat bars will be used as earthing conductors:

Cross section area mm2

Dimensions mm x mm

Density kg/m


Dimensions mm x mm

Density kg/m


Dimensions mm x mm

Density kg/m

1.5.3. Copper Cables

The following PVC single-core copper cables will be used as earthing conductors:




Required Offered



1.6. Earth Electrodes

1.6.1. Lead-sheathed stranded copper conductors

The following lead-sheathed stranded copper conductor will be used as earth electrodes:

Thickness of lead sheath mm

Copper cross-section area mm2

Number of wires pcs



Density kg/m



Number of wires pcs



Density kg/m






Required Offered


Density kg/m

1.6.2. Earth rod

Manufacturer

Length m

Diameter mm

Material (copper, stainless steel)

1.6.3. Stainless steel electrodes

The following steel flat bars will be used as earth electrodes:

Cross-section area dimensions Density

mm2

mm x mm

kg/m

1.7. Connections

Mode of Connection in the Earthing Systems:

Between earthing conductors and earth electrodes Crossing of earth electrodes

Brazed

Compression

2. LIGHTNING PROTECTION

2.1. Manufacturers

2.2. Standard Applied:



Required Offered

Protection of structures against lightning IEC 62305

Manufacturer


Thickness of lead-sheath mm

2.3. Supports

Conductor supports of the lightning protection system

Type

2.4. Earth rod

Manufacturer

Length m

Diameter mm

Material (copper, stainless steel)

3. Type test certificate (to be issued by independent laboratory or independently witnessed type test certificate available)

yes


D. PROTECTION AND INDICATION SYSTEM UNIT DATA

Required Offered

LINE DIFFERENTIAL PROTECTION AND BACK-UP DISTANCE (87/21L)

Manufacturer

Type reference

Relay design (microprocessor based, numerical) Numerical

Auxiliary voltage range (Vn = 110Vdc) Vdc 88150

Input frequency range (50Hz nominal) Hz 47.552.5

Differential protection requirements

Phase segregated protection Yes

Ratio and Vector correction for CTs Yes

Adjustable biased differential protection characteristic Yes

Sensitivity:

- For phase faults

- For earth faults

Operating time ms <30

Distance protection requirements

3 zone ph-ph & ph-E Yes

Phase fault & Earth fault characteristic shapes (Mho, Quad) Quad

Operating time <30ms

SOTF Yes

Power swing blocking (depending on relaying point in the power system)

Yes

Voltage transformer supervision Yes

Time delays for all zones Yes

Zone enable/disable for all zones Yes

Other requirements

DEF comparison function Yes

Directional protection 67/67N

Overcurrent/Earth fault 50/51/50N/51N

Stub protection 50STB Yes



Required Offered

Circuit breaker failure. 50BF- (application dependent)) No

Thermal overload, 49 TBA

Auto Reclose 79 (application dependent) Yes

Under/Over Voltage

Integral intertrip send and receive, with external input interface Yes

Event recording function Yes

Disturbance recording function Yes

Fault locator function Yes

Integral LCD operator interface for local interrogation Yes

Programmable scheme logic Yes

PC based configuration software for HMI, settings, logic and data recorder.

Yes

1.1 Programme name

1.2 Included / Separate

Tripping contacts rating

Carry continuous 5A

Make 30A maximum for 0.2s

Break dc 50W resistive25W

inductive(L/R40ms)

Yes

Self checking facility Yes


Communications

Protection

Direct optical fibre TBA

1550nm single mode distance (km)



Required Offered

1300nm single mode distance (km)

820nm multi-mode distance (km)

Others supported TBA

G703.1

X21

Control

Communication ports (Front/rear etc)

Physical links (RS485/Fibre optic)

Protocols supported

IEC 60870-5-103 Yes

Others (please state)

Type Tests

Atmospheric Environment

Operation -25C and 55C for 96hrs, IEC 60068-2-1 Yes

Transport/storage -25C and 70C for 96hrs, IEC 60068-2-2

Yes

Relative Humidity

Operation at 93% Yes

Tested to IEC 60068-2-3 with severity class 56 days Yes

Enclosure

IEC 60529 IP50 Yes

Mechanical Environment

Vibration IEC 60255-21-1 Yes

Shock and bump IEC 60255-21-2 Yes

Seismic IEC 60255-21-3 Yes

Insulation

Rated insulation

1000V high impedance protection CT inputs

250V for other circuits Yes

1000V open contact withstand Yes

Dielectric Tests

IEC 60255-5 – Series C of table 1 Yes

Impulse voltage

IEC 60255-5 test voltage 5kV Yes

Electromagnetic compatibility



Required Offered

1MHz Burst disturbance test, IEC 60255-22-1 severity class III

Yes

Electrostatic Discharge

IEC 60255-22-2 severity class III Yes

Radiated Electromagnetic Field DisturbanceIEC 60255-22-3 severity class III

Test method A, 27MHz through 500MHzYes

Electromagnetic Emissions

IEC 60255-25 Yes

Fast Transient DisturbanceIEC 60255-22-4 severity level IV

Yes

Type test certificate provided Yes

1.3DISTANCE (21)

Manufacturer

Type reference




Distance protection requirements

Minimum 3 zone ph-ph & ph-E Yes

Phase fault & Earth fault characteristic shapes (Mho, Quad)

Nominal Z1 Operating time <30ms

SOTF Yes

Power swing blocking Yes

Voltage transformer supervision Yes

Time delays for all zones Yes

Zone enable/disable for all zones Yes

Other supported Functions

DEF comparison function Yes

Directional protection 67/67N



Required Offered

Overcurrent/Earth fault 50/51/50N/51N

Stub protection 50STB Yes

Circuit breaker failure. 50BF- (application dependent))

Thermal overload, 49 TBA

Auto Reclose 79 (application dependent)

Under/Over Voltage




Fault locator function Yes


Programmable logic Yes


Yes

2.1 Programme name


Tripping contacts rating details

Carry continuous

Make

Break dc

A

A / time

W rest.

W & L/R




Required Offered

Communications

Protection

Direct optical fibre TBA

2.3 1550nm single mode distance (km)

2.4 1300nm single mode distance (km)

2.5 820nm multi-mode distance (km)

2.6 Others supported TBA

2.7 G703.1

2.8 X21

Control



Protocols supported

IEC 61850 Yes


Type Tests




Yes

Relative Humidity



Enclosure

IEC 60529 IP50 Yes





Insulation



Required Offered

Rated insulation




Dielectric Tests


Impulse voltage


Electromagnetic compatibility1MHz Burst disturbance test,

IEC 60255-22-1 severity class IIIYes






IEC 60255-25 Yes


Yes


2.9

MAIN TRANSFORMER / REACTOR BIASED DIFFERENTIAL PROTECTION 87 including HV and LV REF

Manufacturer

Type reference

Relay design (microprocessor based, numerical) numerical





Required Offered

Biased Differential function

Operation time at 5 times setting ms <25

Adjustable bias characteristics Yes

Differential current stage Id >> Yes

Magnetisation inrush restraint Yes

5th” Harmonic restraint Yes

CT ratio and vector group compensation Yes

Restricted earth fault function

HV REF Yes

LV REF Yes

Principle of REF operation

High impedance/Low impedance Low

Operation time at 5 times settings ms <30

Other requirements

Phase overcurrent function 50/51 (requirement depending on application)

No

Earth fault protection 51N (requirement depending on application) No




3.3 Programme name



Required Offered



Carry continuous

Make

Break dc

A

A / time

W rest.

W & L/R



Fault recording function Yes

Self monitoring and alarm facility

Communications

Control



Protocols supported

IEC 61850 Yes


Type Tests




Yes

Relative Humidity



Required Offered



Enclosure

IEC 60529 IP50 Yes





Insulation

Rated insulation




Dielectric Tests


Impulse voltage




Yes






IEC 60255-25 Yes



Required Offered


Yes


HV CONNECTIONS DIFFERENTIAL PROTECTION 87HC

Manufacturer

Type reference

Relay design (microprocessor based, numerical) numerical



Principle of operation

High impedance/Low impedance High or Low

Biased Differential function (Low Impedance)

No of separate CT inputs 3

Operation time at 5 times setting ms <25

Adjustable bias characteristics Yes

Differential current stage Id >> Yes

Magnetisation inrush restraint Yes

5th” Harmonic restraint Yes

CT ratio and vector group compensation Yes



Required Offered

Differential function (High Impedance)

minimum fault setting (% of CT rating) % Yes

Operating time at 5 x setting ms <30

Non Linear Resistors (Metrosils) integral Y/N

4.3




4.4 Programme name



Carry continuous

Make

Break dc

A

A / time

W rest.

W & L/R



Fault recording function Yes


Communications



Required Offered

Control



Protocols supported

IEC 61850 Yes


Type Tests




Yes

Relative Humidity



Enclosure

IEC 60529 IP50 Yes





Insulation

Rated insulation




Required Offered



Dielectric Tests


Impulse voltage




Yes






IEC 60255-25 Yes


Yes


LOW IMPEDANCE BUSBAR PROTECTION INCLUDING BREAKER FAILURE PROTECTION

Manufacturer

Type reference

Relay design (static, microprocessor-based, numerical) Numerical



Required Offered



State principle of operation, i.e. low impedance Low Z

Integral check zone feature Yes

Distributed Central and Bay Modules or Integrated (Dist / Int) Either

Maximum number of Bays

CT saturation detector and stabilisation

Integral CT supervision

CT matching functions

Phase segregated protection

Sensitivity

1. Phase faults A sec’y

2. Earth faults A sec’y

Operating time at 5 x fault setting ms 30

Two stage Circuit Breaker Failure

Adjustable current setting Adjustable time delays per stage

Yes

Other requirements


5.1 Programme name

5.2 Included / Separate Yes




Required Offered

Carry continuous

Make

Break dc

A

A / time

W rest.

W & L/R




Communications

Bay to central Module communication f.o.


Control



Protocols supported

IEC 61850 Yes


Type Tests



Transport/storage -25C and 70C for 96hrs, IEC 60068-2-2 Yes

Relative Humidity




Required Offered


Enclosure

IEC 60529 IP50 Yes





Insulation

Rated insulation




Dielectric Tests


Impulse voltage




Yes






IEC 60255-25 Yes


Yes



Required Offered


MULTI-FUNCTIONAL DIRECTIONAL OVERCURRENT & EARTH FAULT PROTECTION {67/67N/50/51/50N/51N)

Manufacturer

Type reference




Number of phase CT inputs

Number of earth fault CT inputs

Number of VT inputs

Characteristics curves conforming to IEC 60255, ANSI Yes

Number of overcurrent functions (e.g. No. lowset, highset, IDMTL)

Number of earth fault functions

Number of group settings

Earth fault element suitable of high impedance REF (with external resistor)

Yes

Other functions provided Thermal overload 49 Y/N U/O Voltage 27/59 Y/N NVD 59N Y/N

Integral metering functions

No. of opto-isolator inputs

No of outputs


Event and Fault recording functions

Self-monitoring facility



Required Offered


7.1 Programme name



Carry continuous

Make

Break dc

A

A / time

W rest.

W & L/R

Communications

Integral operator interface for local interrogation Yes

Control



Protocols supported

IEC 61850 Yes


Type Tests




Relative Humidity



Required Offered



Enclosure

IEC 60529 IP50 Yes





Insulation

Rated insulation




Dielectric Tests


Impulse voltage




Yes






IEC 60255-25 Yes



Required Offered


Yes


8.

MULTI-FUNCTIONAL FEEDER MANAGEMENT RELAY {67/67N,50/51,50N/51N, 27, 59, 25, 79, CONTROL, METERING)

Manufacturer

Type reference






Number of VT inputs

Characteristics curves conforming to IEC 60255, ANSI IEC





Yes

Other functions provided Thermal overload 49 Y/N U/O Voltage 27/59 Y/N NVD 59N Y/N Check Synch 25 Y/N Auto-reclose 79 Y/N



Required Offered

9.1 Feeder Control (where applicable)

Integral LCD operator interface for local control and interrogation Yes

Full control of circuit bay Close/Open of circuit breakers Close/Open of Disconnectors/Earth Switches Switching status Interlocking facilities Plant status Active circuit line diagram

Yes



No. of outputs





9.2 Programme



Carry continuous

Make

Break dc

A

A / time

W rest.

W & L/R

Communications

Control & Monitoring




Required Offered


Protocols supported

IEC 61850 Yes


Type Tests




Yes

Relative Humidity



Enclosure

IEC 60529 IP50 Yes





Insulation

Rated insulation






Required Offered

Dielectric Tests


Impulse voltage




Yes






IEC 60255-25 Yes


Yes


10.OVERCURRENT & EARTH FAULT PROTECTION (50/51/50N/51N)

Manufacturer

Type reference








Required Offered

Characteristics curves conforming to IEC 60255, ANSI Yes





Yes

Other functions provided Thermal overload 49 Y/N 50BF Y/N







11.1 Programme name



Carry continuous

Make

Break dc

A

A / time

W rest.

W & L/R

Communications


Control




Required Offered


Protocols supported

IEC 61850 Yes


Type Tests




Yes

Relative Humidity



Enclosure

IEC 60529 IP50 Yes





Insulation

Rated insulation






Required Offered

Dielectric Tests


Impulse voltage




Yes






IEC 60255-25 Yes


Yes


12.13. HIGH IMPEDANCE DIFFERENTIAL PROTECTION (87)

Manufacturer

Type reference

Relay design (static, microprocessor-based, numerical, E-Mech) Numerical

minimum fault setting (% of CT rating) %

Operating time at 5 x setting ms



Required Offered

Non Linear Resistors (Metrosils) integral Y/N

Self monitoring (excluding E-Mech) Yes


13.1 Programme name



Carry continuous

Make

Break dc

A

A / time

W rest.

W & L/R

Communications (numerical relays)


Control



Protocols supported

IEC 61850 Yes

others



Required Offered

Type Tests




Relative Humidity



Enclosure

IEC 60529 IP50 Yes





Insulation

Rated insulation




Dielectric Tests


Impulse voltage





Required Offered


Yes






IEC 60255-25 Yes


Yes


14. AUTO-RECLOSE RELAY (79)

Manufacturer

Type reference




Auto-Reclose Function requirements

No of CB that can be controlled 2

1ph and 3ph AR sequences 1ph+3ph

Integrated/External Check Synch

Other requirements

No of Opto-isolator inputs

No of output contacts

Integral operator interface for local interrogation Yes

Programmable scheme logic Yes



Required Offered


Yes

14.1 Programme name



Carry continuous

Make

Break dc

A

A / time

W rest.

W & L/R


Communications

Control



Protocols supported

IEC 61850 Yes

others

Type Tests




Relative Humidity



Enclosure

IEC 60529 IP50 Yes






Required Offered


Insulation

Rated insulation




Dielectric Tests


Impulse voltage


Electromagnetic compatibility1MHz Burst disturbance test,

IEC 60255-22-1 severity class IIIYes






IEC 60255-25 Yes


Yes


14.3

15. TRIP CIRCUIT SUPERVISIONManufacturer

Type reference

Relay design (Electro-Mech, static, numerical)


Operating time ms

Supervision of the whole trip circuit - CB open and closed. Yes

Relay operated indicator Yes

Type Tests



Required Offered




Relative Humidity



Enclosure

IEC 60529 IP50 Yes





Insulation

Rated insulation




Dielectric Tests


Impulse voltage




Yes





Required Offered



Electromagnetic Emissions IEC 60255-25

Yes


Yes


16. MULTI-CONTACT TRIPPING RELAYS

Manufacturer

Type reference

Operating time ms <12


Is relay mechanically latched or self resetting

Method used to reset latched relay (hand or electrical)

Burden at rated voltage

Minimum voltage at which reliable operation occurs


Carry continuous

Make

Break dc

A

A / time

W rest.

W & L/R

Relay operated indicator type

Type Tests




Relative Humidity



Required Offered



Enclosure

IEC 60529 IP50 Yes





Insulation

Rated insulation




Dielectric Tests


Impulse voltage




Yes






IEC 60255-25 Yes



Required Offered


Yes



E. TARIFF METERING SYSTEM UNIT DATA

Required Offered

17. 1 TARIFF METER

1.1 Manufacturer

Model

1.2 Construction

Measuring Principle 3ph, 4wire

Type Numerical

Display/Reading digits ≥7

Backlit LCD Yes

1.3 Auxiliary voltage range

DC (Vn = 110Vdc) Vdc 88125

AC Vac 230

1.5 Analogue Inputs

Current (In) A 1

Current measuring range pu 1.2

Voltage (Vn) V 110

Voltage measuring range pu 0.8 – 1.15

Power consumption (burden) VA

1.6 Accuracy Class

Watt hour (IEC 602053-22) 0.2s

VAr hour (IEC 602053-23) 2.0

1.7 Measurements



Required Offered

kWh, kVArh

kW, kVAr

V, I

Four quadrant reactive energy

Max Demand

THD

1.8 Outputs

Pulsed Outputs (IEC 62053-31) 3 (min)

1.9 Data Logging

Integral Logging/Storage function

Duration days 180

Channels 4

Programmable Periods y

Inputs from external meters y/n

1.10 Other functions

Battery Back-up y/n y

Back-up duration days ≥14

GPS clock y/n y

Self checking/monitoring facility y/n y

Dual supply changeover (VT) y/n y



Required Offered

1.11 Communications


RS232

RS485 y

Optical (IEC 62056-21) y

Ethernet y

Protocols supported

IEC 62056-21, DLMS y

others

Type Tests

1.12 Atmospheric Environment (62052-11)

Operating Range: -10C to 45C

Operation -25C to 55C

y

Transport/storage -25C to 70C y

1.13 Relative Humidity (62052-11)

Annual mean <75% y

30 days over one year: 95% y

1.14 Enclosure

IEC 60529 IP51

1.15 Mechanical Environment (62052-11)

Shock test IEC 60068-2-27 y

Vibration IEC 60068-2-6

1.16 Insulation Strength (IEC 62052-11) y

Dielectric Tests-



Required Offered

Impulse voltage (surge) as per IEC 61000-4-5

1.17 Electromagnetic compatibility IEC 62052-11 y

Electrostatic Discharge to IEC 61000-4-2

Immunity to Electromagnetic Fields to IEC 61000-4-3

Fast Transient Burst Test to IEC 61000-4-4

Immunity to conducted disturbance by RF fields to IEC 61000-4-6

Damped Oscillatory Waves to IEC 6100-4-12

Radio Interference Suppression to CISPR 22 class B

1.18 Type test certificate provided y


F. FAULT MONITORING SYSTEM UNIT DATA

Required Offered

1 FAULT MONITORING SYSTEM

1.1 Manufacturer

1.2 Type reference

DAU unit type

Master Station type

HMI type

Printer type

1.3 Auxiliary voltage range (Vn = 110Vdc) Vdc 88150

1.4 Analogue Inputs 8

1.5 Event inputs 16

1.6 A/D converter bit 16bit

1.7 Current input max amplitude In 30

1.8 Current/voltage accuracy % fsd ≤0.5

1.9 Scan Rate

Analogue Channel Hz ≥4000

Event Channel Hz ≥2000

1.10 Time stamp resolution ms 1

1.11 Recording range

Pre Fault ms ≥500

Post Fault ms ≥2000

1.12 Trigger response time



Required Offered

Analogue

Event

1.13 Memory

RAM (Non Volatile) Mb ≥256

HDD Mb ≥500

1.14 Battery Back-up duration days ≥14

1.15 GPS clock input Yes

1.16 System Software

1.17 Self checking facility Yes

1.18 Communications


RS232

RS485

RJ45

Other

Protocols supported

IEC 61850

others

Type Tests

1.19 Atmospheric Environment





Required Offered

1.20 Relative Humidity



1.21 Enclosure

IEC 60529 IP50 Yes

1.22 Mechanical Environment




1.23 Insulation

Rated insulation




Dielectric Tests


Impulse voltage


1.24 Electromagnetic compatibility


Yes



Required Offered






IEC 60255-25 Yes


Yes

1.25 Type test certificate provided Yes


G. 11kV XLPE INSULATED CABLE SYSTEM (with solid bonding)

UNIT DATA

Required Offered

18.

1 GENERAL

1.1 Name of manufacturer

1.2 Location of manufacturing site

1.3 Manufacturers Quality Certification ISO 9001

Certified by (Company Name)

Certification valid till (year)

1.4 Circuit rating required kVA 500

1.5 General description of cable

number of cores 1or 3

system voltage kV 11

conductor size mm2

Insulation Type XLPE

metal sheath type Lead

oversheath type MDPE

1.6 Year of first commercial operation of cable type

2INSULATION CO-ORDINATION

2.1 Highest system voltage (Um) (insulation class) kV 12

2.2 Nominal voltage between conductors (U) kV 11

2.3 Rated frequency Hz 50

2.4 Nominal voltage between conductor and sheath (Uo) kV 6.35

2.5 Rated impulse withstand voltage (Up) kV 95

2.6 Rated short duration power frequency withstand voltage kV 17



UNIT DATA

Required Offered

3 RATINGS

3.1 Maximum continuous direct-buried current rating, assuming, Soil thermal resistivity of 2.0K.m/W

Flat spaced configuration, phase spacing of 250mm

Special bonding of metal sheaths

For, Guaranteed Current Rating (Single Circuit in Trench) A Guaranteed Current Rating (Double Circuit in one

Trench, distance between middle phases, s = 1500 mm)A

Ground temperature at burial depth oC Calculation Method IEC 60287

3.2 Maximum continuous in-air current rating, assuming, Air temperature (in shade) of 35 °C

Special bonding of metal sheaths

Flat spaced configuration, group/phase spacing of 150mm

Thermally independent of other cable circuits

For, Guaranteed Current Rating (single circuit) A Calculation Method

3.3 Maximum permissible core temperature for continuous operation

°C 90

3.4 Short circuit capacity for 1 sec

Short circuit current kA As per IEC60502

Permissible maximum sheath temperature oC 200

Permissible maximum conductor temperature oC 250

3.5 Permissible emergency overload

3.5.1 Applied on 100% continuous load

Emergency current rating A Maximum emergency temperature oC Allowable duration/operation hours Allowable total duration/annum hours Maximum average duration/annum on total life of cable hours



UNIT DATA

Required Offered

3.5.2 Applied on 50% continuous load Emergency current rating A Maximum emergency temperature °C Allowable duration/operation hours Allowable total duration/annum hours Maximum average duration/annum on total life of cable hours

3.5.3 Applied on 20% continuous load Emergence current rating A Maximum emergency temperature °C Allowable duration/operation hours Allowable total duration/annum hours Maximum average duration/annum on total life of cable hours

4.0CONSTRUCTION FEATURES

4.1 Conductor Material Cu or Al Nominal cross-section mm2

Shape of conductor

circular Overall diameter mm Waterblocking method Tape/yarn Semiconducting binder tape yes

4.2 Conductor screen Type of material Fully bonded

semicon. XLPE Nominal thickness mm Minimum thickness mm Nominal overall diameter mm Compound Identification Reference yes

4.3 Insulation Material XLPE Nominal thickness mm Minimum thickness mm Nominal overall diameter mm



UNIT DATA

Required Offered

Maximum continuous operating temperature oC 90 Compound Identification Reference yes Maximum stress at nominal voltage

At conductor screen kV/mm At insulation screen kV/mm Maximum stress at impulse voltage

At conductor screen kV/mm At insulation screen kV/mm

4.4 Insulation screen Type of material Fully bonded

semicon. XLPE Nominal thickness mm Nominal overall diameter mm Compound Identification Reference

Indelible ink marking on screen yes

4.5 XLPE Manufacturing Methods Extrusion line type e.g. CCV, MDCV, VCV

Single pass, triple extrusion yes Curing method Dry Cooling method Dry Degassing Period days

4.6 Bedding for moisture absorption Type and material

Nominal thickness mm Minimum thickness mm Nominal overall diameter over bedding mm

4.7 Metallic screen Type and material Copper wire Nominal thickness mm Minimum thickness mm Wire diameter No.



UNIT DATA

Required Offered

Nominal diameter over the screen mm Cross sectional area of screen mm2

Short time current density (1 sec) kA/mm2

4.8 Bedding/Binder tape Type and material

Nominal thickness mm Minimum thickness mm Nominal overall diameter over bedding mm

4.9 Metallic sheath Type and material Lead-alloy 1/2C Nominal thickness mm Minimum thickness mm Nominal diameter over the sheath mm Cross sectional area of sheath mm2

Short time current density (1 sec.) kA/mm2

4.10 Protective anti-corrosion external sheath covering Bitumen undercoat layer

Type and material MDPE Color Black Nominal thickness mm Minimum thickness mm Termite resistant yes/no Yes Type of anti-termite protection

Thermal resistivity K.m/W Max 6.0

4.11 Type of conductive outer layer Graphite/or semicon. polymer

4.12 Nominal overall cable diameter mm

4.13 Weight of completed cable

Copper kg/m Insulation kg/m Lead-Alloy kg/m Gross Weight kg/m



UNIT DATA

Required Offered

5 LOSSES

5.1 Maximum dielectric loss per metre / phase when operating at nominal voltage and frequency and at maximum conductor temperature

W/m

5.2 Maximum sheath loss per metre / phase when operating at nominal voltage and frequency and at current rating stipulated in Item 1.11. with sheath bonded and earthed as recommended (sectionalizing cross bonding)

W/m

5.3 Maximum conductor loss per metre / phase when operating at nominal voltage and frequency and at current rating stipulated in Item 1.11.

W/m

5.4 Total loss of cable per metre / phase of three phase circuit W/m

6 ELECTRICAL VALUES

6.1 Maximum d.c. resistance of conductor at 20oC /m

6.2 Maximum a.c. resistance of conductor at operating temperature

/m

6.3 Equivalent reactance of three phase circuit at 50 Hz /m

6.4 Electrostatic capacitance per conductor of cable at nominal voltage and operating temperature

pF/m

6.5 Maximum charging current per conductor at nominal voltage mA/m

6.6 Charging capacity of three phase system (at Uo) VAr/m

6.7 Maximum dielectric loss factor of cable at normal voltage and frequency at a conductor temperature of:

20oC

90oC

6.8 Positive & Negative sequence impedance /m



UNIT DATA

Required Offered

6.9 Zero sequence impedance (as installed conditions)

Resistance /m

Reactance /m

Capacitance pF/m

6.10 Surge impedance

7 BONDING & EARTHING

7.1 Number of connections to earth

7.2 Interconnected sheaths at joint positions Yes/no

8 TESTING

8.1 Routine Tests As per IEC 60502

8.2 Sample Tests As per IEC 60502

8.3 Type Tests

- Test Regime As per IEC 60502

- Date of Test

- Name of independent witness

8.4 Commissioning Tests

- AC voltage withstand test 2Uo for 1 hour

- Oversheath DC voltage test kV 10kV max for 15minutes

9 OTHER INSTALLATION DATA

9.1 Minimum cable bending radius when laid:



UNIT DATA

Required Offered

Direct burial mm

In air mm

In ducts mm

At terminations (with former) mm

9.2 Maximal permissible pulling force of total cable kN

9.3 Maximal side wall bearing pressure to the cable at bending points

kN/m

9.4 Delivery length per drum

Normal m

Maximum m

9.5 Maximal weight of full drum with maximum delivery length of cable

kg

9.6 Drum dimensions:

Flange diameter m

Core diameter m

Width m


H. SUBSTATION CONTROL SYSTEM UNIT DATA

Required Offered

19.

1 SUBSTATION CONTROL SYSTEM Yes

2.1 Substation Computer

2.1.1 Manufacturer Yes

2.1.2 Model Yes

2.1.3 Processor

2.1.4 Type

2.1.5 Word length Bits

2.1.6 Clock speed (minimum) MHz

2.1.7 Memory size

2.1.8 Supplied (minimum) Mb

2.1.9 Supportable/expandable Gb

2.1.10 Hard disk size

2.1.11 Supplied (minimum) Gb


2.1.13 Optical Storage Yes

2.1.14 Operating system

2.1.15 Software supplied

2.1.16 Operating temperature range °C

2.1.17 Maximum relative humidity %

2.1.18 Nominal voltage V ac

2.1.19 Operating frequency Hz

2.1.20 Starting current A



Required Offered

2.1.21 Power requirement W

2.1.22 Mean time between failure h

2.1.23 Mean time to repair h

2.2 Gateway


2.2.2 Model Yes

2.2.3 Processor

2.2.4 Type


2.2.6 Clock speed (minimum) MHz

2.2.7 Memory size






2.2.13 Communication Protocols To Control Centre(s)

2.2.14 NCC Main IEC 60870-5-101 Yes

2.2.15 NCC Alt IEC 60870-5-101 Yes

2.2.16 NCC TCP/IP Intranet Yes

2.2.17 RCC Main IEC 60870-5-101 Yes

2.2.18 RCC Alt IEC 60870-5-101 Yes

2.2.19 NCC IEC 60870-5-104 Yes

2.2.20 RCC IEC 60870-5-104 Yes



Required Offered

2.2.21 Communication Protocols in Substation

2.2.22 IEC 61850 Yes

2.2.23 List other operating Protocols

2.2.24 Data Communications Interface

2.2.25 V.35 interface at 64Kb/s Yes

2.2.26 X.21 / V.11 interface at 64Kb/s Yes




2.2.30 Nominal voltage V dc






2.3.0 Operator Workstations / HMI


2.3.2 Model Yes

2.3.3 Literature reference for principle of operation Yes

2.3.4 Processor

2.3.5 Type


2.3.7 Clock speed (minimun) MHz



Required Offered

2.3.8 Memory size






2.3.14 Optical Storage Yes

2.3.15 Pointer Device


2.3.17 Operator interface screens









2.3.26 Operator Desk Yes


2.3.28 Type of construction

2.3.29 Finish and material of working surfaces

2.3.30 Method of mounting VDUs

2.3.31 Number



Required Offered

2.3.32 Operator Chairs

2.3.33 Manufacturer

2.3.34 Type of construction

2.3.35 Type of upholstery

2.3.36 Number

2.4. COLOUR VISUAL DISPLAY UNITS (VDUS)


2.4.2 Model Yes


2.4.4 Screen size across diagonal mm

2.4.5 Usable display area mm

2.4.6 Resolution (minimum) pixels

2.4.7 Dot pitch mm


2.4.9 Operating relative humidity range %





2.4.14 Approximate lifetime of monitor under continuous use h



2.5 Substation Local Area Network (LAN)

2.5.1 Architecture and Technology Yes



Required Offered


2.5.3Transmission medium (e.g. optical fibre) and physical specification

2.5.4 Protocols

2.5.5 IEC 60870-5-101

2.5.6 IEC 60870-5-104

2.5.7 IEC 61850

2.5.8 List all other protocols

2.5.9 Data transmission rate(s) Mbps

2.5.10

Physical arrangement - Identify all main elements in the supply including hubs, concentrators, bridges, routers, gateways switches etc. and the number of each

Yes

2.5.11 For each element of the LAN indicate the

2.5.12 No and type of ports

2.5.13 % of spare for each type of port

2.5.14Management software package, functions and facilities, and hardware platform

2.5.15 % Loading under various system activity scenarios including

2.5.16 normal loading for performance testing %

2.5.17 high loading for performance testing %

2.5.18 system power up %

2.5.19 main server fail-over and database resynchronisation

2.5.20 Overall availability %

2.6 INDIVIDUAL ELEMENTS

2.6.1For each element of the LAN equipment provide the following information

2.6.2 Manufacturer



Required Offered

2.6.3 Type

2.6.4 Nominal voltage

2.6.5 Power requirements V ac

2.6.6Range of ambient temp. and max relative humidity for continuous reliable operation

W

2.6.7 Mean time between failures oC

2.6.8 Mean time to repair %RH

2.7 PRINTERS

2.7.1 Logging Printer Yes

2.7.2 Manufacturer

2.7.3 Model

2.7.4 Literature reference for principle of operation

2.7.5 Number

2.7.6 Mounting arrangement

2.7.7 Method of printing (e.g. ink jet)

2.7.8 Print speed ppm

2.7.9 Paper feed mechanism

2.7.10 Number of columns (minimum)






2.7.16 Max noise level at 1 m dB(A)



Required Offered



2.7.19 COLOUR PRINTERS


2.7.21 Model Yes


2.7.23 Number

2.7.24 Mounting arrangement

2.7.25 Print speed (minimum) ppm

2.7.26 Technology

2.7.27 Resolution dpi

2.7.28 Paper size

2.7.29 Sheet feed paper tray capacity Sheets

2.7.30 Internal memory (minimum) Mb






2.7.36 Max noise level at 1 m dB(A)



3.0 BAY CONTROL UNIT HARDWARE

3.1.0 19.1 General Yes



Required Offered


3.1.2 Module designation Yes


3.1.4 Power supply V dc 110

3.1.5Power requirements W

3.1.6 Maximum Number of expansion modules

3.1.7 Mean-time to repair for each type of RTU H

3.1.8 Mean-time between failure for each type of RTU H

3.1.9 Local LCD Display

3.1.10 Operating temperature range °C 0 – 50

3.1.11 Operating relative humidity range % 100

3.2 BCU ENCLOSURE

3.2.1 Manufacturer

3.2.2 Module designation

3.2.3 Literature reference for enclosure

3.2.4 Weight

3.2.5 Dimensions

3.2.6.0 Degree of protection

3.2.6.1 Flush Mounted housing

3.2.6.2 Surface mounted housing

3.3 IEC STANDARDS ( OR EQUIVALENT )

3.3.1 EMC Type tests (Provide Class/Level or Severity rating)

3.3.2 EMC Compliance IEC 60255-22-3

3.3.3 Dielectric withstand test IEC 60255-4/-5



Required Offered

3.3.4 High Voltage impulse test IEC 60255-4/-5

3.3.5 Fast transient disturbance test IEC 61000-4-4

3.3.6 Oscillatory transient IEC 61000-4-12

3.3.7 Radiated immunity test IEC 61000-4-6

3.3.8 Electrostatic discharge test IEC 61000-4-2

3.3.9 Emitted interference test IEC 61000-4-3

3.3.10 Mechanical test Compliance

3.3.11 Vibration test IEC 60255-21-1

3.3.12 Shock test IEC 60255-21-2

3.3.13 Seismic test IEC 60255-21-3

3.3.14 Temperature rise test IEC 60068-2-2

3.4 BCU FUNCTIONS

3.4.1 The monitoring functions include:

3.4.2 Switching status monitoring (breakers)

3.4.3 Indication & alarm status monitoring

3.4.4 Analogue measurements (currents, voltages, etc.)

3.4.5 Resolution of time tagging ms 1

3.4.6.0 The control functions include:

3.4.6.1 Close / open of circuit breakers

3.4.6.2 Close / Open of isolators / disconnectors

3.4.6.3 Transformer Automatic tap change control

3.4.6.4 Breaker Voltage Synchronisation Check Control

3.4.6.5 Bay interlocking facilities

3.4.7.0 The reporting functions include:



Required Offered

3.4.7.1 Sequence of Events recording

3.4.7.2 Post – Mortem Review / Fault waveform capture

3.4.7.3

Tenderers to state memory capacity and functionality of Sequence of events and fault waveform capture

3.5 19.2 BCU Configuration

3.5.1 Number of processors

3.5.2 Main processor

3.5.3 Secondary processors

3.5.4 Communication processor (module)

3.5.5 Type of communication between processors

3.5.6.0 LCD Display and selector Buttons on front of BCU Yes

3.5.6.1 Functionality to include

3.5.6.2 Full control of circuit bay

3.5.6.3 Status of bay plant

3.5.6.4 Circuit active line diagram

3.5.6.5 Power system Measurements

3.5.6.6 Display alarms and events

3.6 PROCESSING UNITS

3.6.1 Main CPU

3.6.2 Manufacturer



3.6.5 Mean - time between failure h

3.6.6 Power requirements W



Required Offered

3.6.7 Type of processor

3.6.8 Word length bit

3.6.9 Clock speed MHz

3.6.10.0 Kinds of memory used:

3.6.10.1 Type, size and extension capabilities KByte

3.6.10.2 Type, size and extension capabilities Kbytes


3.7.0 SECONDARY CPU

3.7.1 Manufacturer



3.7.4 Mean - time between failure h

3.7.5 Power requirements W


3.7.7 Word length bit

3.7.8 Clock speed MHz

3.7.9.0 Kinds of memory used:




3.8 COMMUNICATIONS






Required Offered

3.8.4 Number of communications channels


3.8.6 Word length

3.8.7 Clock speed bit

3.8.8 Type and size of memory MHz

3.8.9 Line interface to communication channel

3.8.10 Speed of transmission B/s

3.8.11 Number and type of communication ports

3.8.12 Meantime between failure h


3.8.14.0 Communication Interfaces

3.8.14.1 IEC60870-5-101 direct to Control Centre(s)

3.8.14.2 IEC60870-5-103 interface to protection IED

3.8.14.3 IEC61850 interface to substation LAN

3.8.14.4IEC60870-5-101 for remote downloading of BCU data

3.8.14.5 List all Protocols available at BCU

3.8.15 Local interface for Laptop Computer

3.8.16.0 IED Interface

3.8.16.1 List of manufactures the BCU has interfaced Yes

3.8.16.2 Standard communication protocols available Yes

3.8.16.3 Optional communication protocols available Yes

3.9 POWER SUPPLY MODULE




Required Offered


3.9.3 Maximum number of modules per processor

3.9.4 Nominal Input voltage VDC

3.9.5 Operating voltage range


3.9.7 Isolation



3.10 DIGITAL INPUT MODULE




3.10.4 Input voltage V dc

3.10.5.0 Is contact input type configurable as

3.10.5.1 Status and alarms

3.10.5.2 Sequence of events

3.10.5.3 BCD or parallel inputs

3.10.5.4 Pulse accumulator

3.10.5.5 Or any combination of these

3.10.6.0 Standard number of inputs per module:

3.10.6.1 double position

3.10.6.2 single position

3.10.7 Type of input circuit isolation

3.10.8 Input galvanic separation



Required Offered

3.10.9 Impulse voltage withstand kV

3.10.10 Scan time ms

3.10.11 Minimal pulse duration ms

3.10.12 Input impedance ohm

3.10.13 Filter time constant ms



3.11 PULSE COUNTING MODULE

3.11.1 Is this facility incorporated into the digital input module?




3.11.5 Type of counter

3.11.6 Maximum count

3.11.7 Storage and resetting under control of external clock?

3.11.8 Number of inputs per module

3.11.9 Input current mA


3.11.11 Signal range : pulse widths ms



3.12 COMMAND OUTPUT MODULE





Required Offered


3.12.4.0 Contact ratings

3.12.4.1 Switched voltage V

3.12.4.2 Switched power VA max

3.12.4.3 Switched current A

3.12.4.4 Range of duration of command output S

3.12.5 Number of two position output channels per module

3.12.6 Are outputs activated by select-check-actuate procedure?

3.12.7 Are welded contacts checked prior to command output?

3.12.8 Are the outputs fused and fuse status monitored?




3.13 DIGITAL OUTPUT MODULE



3.13.3 Number of outputs per module


3.13.5 Maximum output current mA

3.13.6 Maximum switched output voltage V


3.13.8 Type of protection against back EMF kV

3.13.9 Command duration adjustable in the range s




Required Offered


3.14 ANALOGUE TO DIGITAL CONVERSION MODULE





3.14.5 Resolution bits

3.14.6 Accuracy %

3.14.7 Common mode noise rejection dB

3.14.8 Normal mode noise rejection dB

3.14.9 Conversion time ms

3.14.10 Scanning time (per channel) ms

3.14.11 Meantime between failures h


3.15 ANALOGUE INPUT MODULE




3.15.4 Scanning resolution bits

3.15.5 Accuracy %

3.15.6 How are overflow and conversion failures dealt with?

3.15.7 Conversion time

3.15.8 Input filter attenuation at 50 Hz dB

3.15.9 Input signal types (e.g. 4-20 mA)



Required Offered

3.15.10 Method of isolation


3.15.12 Input impedance ohm

3.15.13 Type of ADC switching

3.15.14 Standard number of inputs per module



3.16 ANALOGUE OUTPUT MODULE



3.16.3 Number of outputs per module


3.16.5 Output voltage range V

3.16.6 Output current range mA

3.16.7 Type of isolation

3.16.8 Load resistance range ohms

3.16.9 Maximum error over-current ranges %


3.17.0 DIRECT AC CONNECTION VOLTAGE



3.17.3 Maximum number of modules processor


3.17.5 Input voltage ranges V ac



Required Offered


3.17.7 Burden on instrument transformer circuit VA



3.17.10 Accuracy %

3.17.11 What calculations are supported



3.17.14 Impulse voltage withstand kV kV

3.18.0 DIRECT AC CONNECTION CURRENT



3.18.3 Maximum number of modules processor


3.18.5 Input current ranges A





3.18.10 Accuracy %

3.18.11 What calculations are supported



3.18.14 Impulse voltage withstand kV kV



Required Offered

4.0 BCU SOFTWARE

4.1.0 GENERAL REQUIREMENTS

4.1.1 Program structure

4.1.2 System software

4.1.3 Standard functions programs

4.1.4 User functions programs

4.2 CAPABILITY OF:

4.2.1 BCU program downloading from Control Centre

4.2.2 Application configuration from Control Centre

4.2.3 Remote selection of processing parameters

4.2.4 Selection of communication protocols

4.2.5 Selection of operation modes (cyclic, polled, etc.)

4.2.6 Appropriate protection of software against power failure

4.2.7 Automatic BCU re-start without software down-loading

4.3 SYSTEM SOFTWARE

4.3.1 Operating System (Monitor) Functions and capabilities

4.3.2 Calendar program Type, functions and capabilities

4.3.3 Time Synchronization Program Functions and capabilities

4.3.4 Data Base Updating program Functions and capabilities

4.3.5 Testing and Diagnostics Programs Functions and capabilities Yes

4.4.0 STANDARD FUNCTIONS PROGRAMS

4.4.1 Data Communication Programs: Functions and capabilities

4.4.2 Capability of communication protocol selection



Required Offered

4.4.3 Capability of operating modes selection

4.5.0 ANALOGUE MEASUREMENTS, SCANNING AND TRANSMISSION PROGRAMS

4.5.1 Capabilities of adjustments

4.5.2 Transducers constants

4.5.3 Periodic transmission/transmission by exception

4.5.4 Automatic checking of A/D-conversion accuracy

4.5.5 Smoothing

4.5.6 Threshold values

4.5.7 Limits

4.5.8 Scan duration (range)

4.5.9 Cycle duration (range) s

4.5.10 Priority of transmission s

4.5.11 Digital Input Data Scanning and transmission Program

4.6.0 FUNCTIONS AND CAPABILITIES

4.6.1 Capability of adjustments;

4.6.2 Scan duration (range) ms

4.6.3 Transient time of status information (range)

4.6.4 Cycle duration (range) ms

4.6.5 Debouncing filter s

4.6.6 Suppression of intermediate status information

4.6.7 Time tagging

4.6.8 Transmission mode

4.6.9 Priority of transmission

4.7 ALARM AND EVENT HANDLING



Required Offered

4.7.1 Grouping of alarms and events

4.7.2 Maximum number of groups

4.8 SUPERVISORY CONTROL PROGRAMS: FUNCTIONS AND CAPABILITIES

4.8.1 Select before execute

4.8.2 Target check

4.8.3 Cancelling control after adjustable time delay

4.8.4 Capability of adjustments:

4.8.5 Duration of output (range) s

4.8.6 Allowed duration of execution (range) s

4.8.7 Sequence of Events programs

4.8.8 Minimal sequence of events time resolution ms

4.8.9 Sequence of events memory capacity

4.8.10 Events time resolution (adjustable range)

4.8.11 Priority of transmission

4.8.12 Post - Mortem Review / Program

4.8.13 Selection of analogues for post-mortem review

4.8.14 Short interval time resolution (adjustable range) s

4.8.15 Long interval time resolution (adjustable range) s

4.9 DATA PROCESSING PROGRAMS: FUNCTIONS AND CAPABILITIES

4.9.1 Required minimum data processing:

4.9.2 Logic functions

4.9.3 Arithmetical functions (MW , Mvar etc )

4.9.4 Limiting functions s

4.9.5 Comparative functions



Required Offered

4.9.6 Time functions

5.0 GATEWAY SOFTWARE

5.1.0 GENERAL REQUIREMENTS

5.1.1DATABASE MANAGEMENT APPLICATION

5.1.2ALARM AND EVENT GROUPING

5.1.3 Alarm and Event Separation for NCC and DCC

5.1.4Alarm and Event storage and remote / local access

5.2.0 CAPABILITY OF:

5.2.1 Gateway program downloading from Control Centre

5.2.2 Application configuration from Control Centre

5.2.3 Remote selection of processing parameters

5.2.4 Selection of communication protocols

5.2.5 Selection of operation modes (cyclic, polled, etc.)

5.2.6 Appropriate protection of software against power failure

5.2.7 Automatic re-start without software down-loading

5.0 SYSTEM SOFTWARE

5.3.1 Operating System (Monitor) Functions and capabilities

5.3.2 Calendar program Type, functions and capabilities

5.3.3 Time Synchronization Program Functions and capabilities

5.3.4 Data Base Updating program Functions and capabilities

5.3.5 Testing and Diagnostics Programs Functions and capabilities

6.0 TRANSDUCERS

6.1.0 Current transducer.



Required Offered

6.1.1 Manufacturer

6.1.2 Type reference

6.1.3 Number

6.1.4 Principle (e.g. 3 phase, 3 wire, unbalanced)

6.1.5 Output range mA

6.1.6 Input ranges available A


6.1.8 Insulation level kV

6.1.9 Impulse withstand level kV peak

6.1.10 Minimum accuracy over working range %

6.1.11 Response time (0 to 90%) ms

6.1.12 Mounting details


6.1.14 Operating humidity range %

6.1.15 Auxiliary supply if required

6.1.16 Voltage range V

6.1.17 Power requirements VA

6.1.18 Frequency Hz

6.1.19 Type of overload protection

6.1.20 Permissible continuous input overload %A

6.2.0 VOLTAGE TRANSDUCER

6.2.1 Manufacturer

6.2.2 Type

6.2.3 Number



Required Offered


6.2.5 Input ranges available V









6.2.14 Auxiliary supply

6.2.15 V range V


6.2.17 Frequency Hz


6.2.19 Permissible continuous input overload %A

6.3.0 ACTIVE POWER MW

6.3.1 Manufacturer


6.3.3 Number



6.3.6 Input ranges available

6.3.7 Voltage V



Required Offered

6.3.8 Current A

6.3.9 Burden on instrument transformer circuit

6.3.10 Current Transformer (CT) VA

6.3.11 Voltage Transformer (VT) VA








6.3.19 Auxiliary supply if required



6.3.22 Frequency Hz


6.3.24 Permissible continuous input overload

6.3.25 Voltage %V

6.3.26 Current %A

6.4 REACTIVE POWER MVARS

6.4.1 Manufacturer


6.4.3 Number




Required Offered



6.4.7 Voltage V

6.4.8 Current A














6.4.22 Frequency Hz



6.4.25 Voltage %V

6.4.26 Current %A

6.5 FREQUENCY

6.5.1 Manufacturer



Required Offered

6.5.2 Type

6.5.3 Number

6.5.4 Measurement range Hz


6.5.6 Input ranges available V ac

6.5.7 Burden on instrument VT circuit VA










6.5.17 Frequency Hz


6.5.19 Permissible continuous input overload %V %

6.6 POWER FACTOR

6.6.1 Manufacturer

6.6.2 Type

6.6.3 Number

6.6.4 Measurement range




Required Offered

6.6.6 Input ranges available V ac

6.6.7 Burden on instrument VT circuit VA










6.6.17 Frequency Hz


6.6.19 Permissible continuous input overload %

6.7 COMBINED ACTIVE AND REACTIVE POWER

6.7.1 Manufacturer

6.7.2 Type

6.7.3 Number

6.7.4 Measurement range


6.7.6 Voltage V ac

6.7.7 Current A





Required Offered






6.7.15 Number of analogue outputs

6.7.16 Analogue output range mA

6.7.17 Calculations available

6.7.18 Serial output protocol






6.7.24 Frequency Hz



6.7.27 Voltage %V

6.7.28 Current %A


I. DIESEL GENERATOR UNIT DATA

Required Offered

1. GENERATOR

1. Details of automatic voltage regulating equipment

1.1 Manufacturer

1.2 Rated power kVA 500

1.3 Output voltage V 400

1.4 Rated power factor Cos Φ 0.8

1.5 Frequency Hz 50

1.6 Dimensions

Diesel Generator mxmxm

1.7 Limits of voltage regulation %

1.8 Manufacturer system in accordance with ISO 9000, 9001, 9002, 9003 and 9004

yes

2 ENGINE

2.1 Rating for site conditions kW

2.2 No and arrangement of cylinders

2.3 Any limitation in part load performance

2.4 Fuel consumption: -At rated outputAt ¾ rated outputAt ½ rated output

l/h

2.5 Lubricating oil consumption at rated output l/h



Required Offered

2.6 Time taken for engine to run up to speed and be ready to receive load sec

2.7 Maximum load increment which may be applied with the voltage and frequency maintained within the limits specified

kVA

2.8 Estimated running hours between overhauls

Top Overhaul Hr

Major Overhaul Hr

2.9 Bulk fuel tank

Capacity l

Dimension m

2.10 Daily service fuel tank

Capacity l

Dimension m

2.11 Radiator

Air flow from radiator m3/s

Temperature rise of discharge air C

Dimension of radiator m

3 ELECTRICAL EQUIPMENT

3.1 Number of batteries for generating set and type Electrical Starter

3.2 Voltage of each battery V

3.3 Battery capacity for generating set A-h



Required Offered

3.4 Voltage of engine starting system V


K. LV SERVICES EQUIPMENT UNIT DATA

Required Offered

A. LVAC SWITCHGEAR (415/240 V, 50 Hz)

1. GENERAL

1.1. Rated voltage V 415


2. LVAC SWITCHBOARD

2.1. Manufacturer


2.3. Type of switchboard Metal-clad

withdrawable type,

multi-tier

2.4. Standards IEC 60439

2.5. Number of years equipment of identical design has been in service

2.6. Rated current of busbars at 50C ambient temperature

A

2.7. Busbar cross section mm2



Required Offered

2.8. Busbar insulation material

2.9. Busbar insulation maximum working temperature C

210. Temperature rise on continuous operation at rated current

at 50C

2.11 Rated short-time withstand current (1 s) kA 50

2.12 Rated peak withstand current kA 125

2.13 Test voltage (1 min) V 2500

2.14. Impulse Withstand Voltage kVp

2.15. Type of internal barriers, shutters, etc. Metallic

2.16. Degree of protection IP51

2.17. Overall dimensions per cubicle

Width mm

Depth mm

Height mm max 2250

Weight kg



Required Offered

2.18. Method of circuit breaker withdrawal manual

3. CIRCUIT BREAKER

3.1. Manufacturer


3.3. Type Air, withdrawable

3.4. Number of poles 3

3.5. Standard IEC 60947-2

3.6. Rated current at 50C A

3.7. Rated short-time withstand current (1 s) kA 50

3.8. Rated peak withstand current kA

3.9. Rated symmetrical breaking current kA

3.10. Rated making current kA



Required Offered

3.11. Breaking time s

3.12. Material of:

moving contacts

fixed contacts

3.13. Design of:

moving contacts

fixed contacts

3.14. Operating mechanism

Motor rated power W

Motor operating voltage V

3.15. Weight of draw-out unit kg

3.16 Protection Module

Type

Phase protection functions L,S,I

Neutral protection functions

Ground/Earth protection functions G

3.17. Type tests

3.17.1. Temperature Rise Test



Required Offered

Have heating tests at continuous rated normal current been carried out ?

report number

date

3.17.2. Basic Impulse Voltage Type Test:

Has B.I.V test been completed?

circuit breaker report number date

3.17.3 Life Test:

Has 2000 operating life test at no load (de-energised) been carried out?

report number

date

4. MOULDED CASE CIRCUIT BREAKERS (MCCBs)

4.1. Manufacturer


4.3. Withdrawable MCCBs type yes



Required Offered

4.4. Number of poles 3


4.6. Rated current at 50C A

4.7. Rated short-time withstand current (1 s) kA

4.8. Rated peak withstand current kA

4.9. Rated breaking current kA

4.10. Remote signaling yes

4.11. Operating mechanism

4.12. Mass

4.13 Protection Module

Type

Phase protection functions L, I

Ground (Earth) protection function

5. CURRENT TRANSFORMERS



Required Offered

5.1. Manufacturer

5.2. Type

5.3. Type of primary winding (e.g. bar, wound, etc.)


5.5. Rated voltage kV

5.6. Rated lightning impulse withstand voltage phase to earth

kV

5.7. Rated power frequency withstand voltage phase to earth

kV

5.8. Partial discharge test voltage kV


5.10. Rated continuous thermal current at 50oC

5.11. Rated short-time withstand current (1 s) kA

5.12. Rated dynamic current kA

5.13. Line current transformer



Required Offered

5.13.1. Type designation

5.13.2. Number of cores 2

5.13.3. Rated extended primary current % 120

5.13.4. Ratio (TR = turns ratio)

I core II core

A

A

1/750 (TR)

750/1

5.13.5. Class

I core II core

PX

1.0 / FS:5

5.13.6. Knee point voltage (EK)

I core II core

V

V N/A

5.13.7. Exciting current (IE) at EK

I core II core

A

A N/A

5.13.8. Rated output (burden to be 25-100% rated burden) I core II core

VA

VA

N/A

5.14. Neutral current transformer


5.14.2. Number of cores 1



Required Offered

5.14.3. Rated extended primary current % 120

5.14.4. Ratio (TR = turns ratio)

I core A 1/750 (TR)

5.14.5. Class

I core PX

5.14.6. Knee point voltage (EK)

I core V

5.14.7. Exciting current (IE) at EK

I core A

5.14.8. Rated output (burden to be 25-100% rated burden) I core VA N/A

5.14.9. Total mass of one current transformer complete kg

All Class PX CTs shall have a rated secondary current, ISN

6. INSTRUMENTS

6.1. Manufacturer

6.2. Standards IEC 60051


Ammeter Voltmeter



Required Offered

6.4. Total scale range

Ammeter Voltmeter

6.5. Dimensions mm 96 x 96

6.6. Accuracy 1.5

6.7. Selector Switches

Ammeter Voltmeter

7.1. Restricted Earth Fault Protection

7.1.1. Manufacturer

7.1.2. Type reference

7.1.3. Relay design (electromechanical, numerical) Numerical

7.1.4. Minimum fault setting (% of CT rating) %

7.1.5. Operating time at 5 x setting ms

7.1.7. State principle of operation, i.e.

H - high impedance

L - low impedance

H



Required Offered

7.1.8. Current transformer requirements:

Required knee point voltage, Vk CT maximum winding resistance Magnetising current at Vk

V

A

7.1.11. Tripping contacts rating

7.2. Undervoltage / Overvoltage Relay

7.2.1. Manufacturer

7.2.2. Type reference

7.2.3. Relay design (electromechanical, static)

7.2.4. Total scale range V

7.2.5. Operate time at instantaneous voltage change for undervoltage / overvoltage relay

ms

7.2.6. Reset ratio overvoltage / undervoltage %

8. Manufacturer quality system in accordance with ISO 9000, 9001, 9002, 9003 and 9004

yes

9. Type test certificate to be issued by independent laboratory or independently witnessed type test

yes



Required Offered

certificate available



Required Offered

B D.C. SYSTEMS

1. 110 V D.C SYSTEM - SUBSTATION SERVICES SUPPLY

1.1. 110 V Battery Units

1.1.1 Manufacturer

1.1.2 Type designation

1.1.3 Number of battery units 2 x 50%

1.1.4 Type of cell Nickel-Cadmium

1.1.5 Operating voltage per cell V

1.1.6 Number of cells



Required Offered

1.1.7 Standard * IEEE 1115 for

calculation

* IEC 60623, 60478,

60439 for equipment

1.1.8 Discharge capacity:

10 hour rate Ah min. 250 (to be

confirmed by

calculation)

5 hour rate Ah

3 hour rate Ah

1 hour rate Ah

30 minute rate Ah

1.1.9 Final cell voltage after discharge:

10 hour rate V 1.14

5 hour rate V

3 hour rate V

1 hour rate V

30 minute rate V

1.1.10 Ampere hour efficiency:

10 hour rate %

5 hour rate %

3 hour rate %

1 hour rate %

1.1.11 Watt hour efficiency:

10 hour rate %

5 hour rate %

3 hour rate %

1 hour rate %

30 minute rate %

1.1.12. Maximum charging voltage per cell V



Required Offered

1.1.13. Normal charging rate range A

1.1.14. Maximum charging rate range A

1.1.15. Float charging rate A

1.1.16. Boost charging rate A

1.1.17. Normal voltage across battery on float charge V

1.1.18. Voltage per cell on float charge V

1.1.19. Normal voltage across battery on boost charge V

1.1.20. Voltage per cell on boost charge V

1.1.21. Overall dimensions of one cell mm

1.1.22. Quantity of electrolyte per cell Litres

1.1.23. Overall dimensions of each stand mm

1.1.24.1

Number of stands

1.1.25.1

Number of tiers

1.1.26.1

Material and cross section of connections: between cells between tiers between stands to battery fuse box

mm2

mm2

mm2

mm2

1.1.27.1

Method of treating copper connection against corrosion

1.1.28. Method of protecting copper connections against accidental short circuiting

1.1.29. Estimated short circuit current from fully charged battery

A



Required Offered

1.1.30. Anticipated life of electrolyte under actual operating conditions Years

1.1.31. Anticipated life of electrolyte under actual operating conditions Years

1.1.32.1

Operating temperatures: Normal operation

maximum

minimum Emergency discharge

maximum

minimum

C

C

C

C

1.2 110 V D.C Battery Chargers

1.2.1. Manufacturer


1.2.3. Degree of protection IP 51

1.2.4. Number of chargers 2 x 100%

1.2.5. Type Thyristor Controlled

1.2.6. Charging characteristic

1.2.7. Input voltage V 3 Phase, 415

1.2.8. Input frequency and range Hz 50

1.2.9. Input power kVA

1.2.10. Minimum working power factor

1.2.11. Rated output power kW

1.2.12. Output voltage range:



Required Offered

float charge V

boost charge V

1.2.13. Continuous output current range:

float charge A

boost charge A

1.2.14. Accuracy of output voltage %

1.2.15. Overload range %

1.2.16. Voltage ripple %

1.2.17. Ripple frequency Hz

1.2.18. Means of adjusting output

1.2.19. Details of any forced cooling equipment for chargers

1.2.20. Ambient temperature range C

1.2.21. Ambient relative humidity range %

1.2.22. Mean time between failure (MTBF) Years

1.2.23. Overall dimensions (shall be a separate free-standing panel/cubicle)

mm

1.2.24. Weight kg

1.2.25. Boost charge maximum permitted constant potential per cell

V

1.2.26. Boost charge maximum permitted current as percentage of 5 hour capacity

%

1.2.27. Time to be re-charge to 90% capacity at maximum permitted voltage and current

hrs

1.3. Battery Fuse Boxes



Required Offered

1.3.1. Manufacturer



1.3.4. Fuse rated current at 50oC

1.3.5. Remote signalling yes

1.4. 110 V D.C. Switchboards

1.4.1. Manufacturer



1.4.4. Standards IEC 60439

1.4.5. Rating voltage V 110

1.4.6. Rated current of busbars at 50oC ambient temperature

A

1.4.7. Busbar cross section mm2

1.4.8. Busbar insulation material

1.4.9. Number of circuits



Required Offered

1.4.10. Main isolator rating A

1.4.11. Main fuse rating A

1.4.12. Single line diagram number

1.4.13. Arrangement drawing number

1.4.14. Details of Contactors:

Manufacturer

Type designation

Type

Site current rating (at 50°C) A

Rated breaking capacity kA

Short time current (1 s) kA

Maximum operating time

opening msec

closing msec

Voltage / power coil rating V/W

Typical circuit diagram number

1.4.15. Details of Earth Fault Protection:

Manufacturer

Type Designation

Brochure number

1.4.16. Details of Undervoltage / Overvoltage Protection:

Manufacturer

Type Designation

Brochure number

1.4.17. Instruments

Manufacturer Voltmeter (type) Ammeter (type) Instruments



Required Offered

1.4.18 Details of Moulded Case Circuit Breakers (MCCBs)

Manufacturer Type designation Number of poles Standards Rated current at 50C Rated short-time withstand

current (1 s) Rated breaking capacity Remote signaling

A

kA

kA

Yes

1.4.19 Details of Miniature Circuit Breakers (MCBs) Manufacturer Type designation Number of poles Standards Rated current at 50C Rated short-time withstand

current (1s) Breaking capacity at Remote signalling

A

kA

kA

Yes

Manufacturer quality system in accordance with ISO 9000, 9001, 9002, 9003 and 9004 Yes



Required Offered

Type test certificate to be issued by independent laboratory or independently witnessed type test certificate available

Yes

C. 240 V AC UNINTERRUPTIBLE POWER SUPPLY

1.C

GENERAL

The uninterruptible power supply (UPS) shall consist but not be limited to the following items:

two thyristor controlled 110 V DC / 240 V AC inverters

yes

two static interrupters and transfer switches

yes

one 240/240 V single phase isolating by-pass transformer

yes

two manual by-pass switchesyes

one UPS distribution boardyes



Required Offered

2. INVERTER

2.1. Manufacturer


2.3. Degree of protectionIP51

2.4. Rated output powerVA min 1200 (to be

confirmed by

calculation)

2.5. Rated input voltage and rangeV%

2.6. Rated input currentA

2.7. Rated output voltageV

2.8. Steady state voltage variation%

2.9. Rated output currentA

2.10. Rated output frequencyHz

2.11. Steady state frequency variation%

2.12. Total harmonic distortion%

2.13. Rated output power factor

2.14. Maximum harmonic distortion:

at any single frequency%

at all frequencies%

2.15. Radio frequency interference (RFI) classification

2.16. Output voltage rise time on turn-onms

2.17. Output voltage decay time on turn-offms

2.18. Maximum transient voltage variation after full load acceptance or rejection for:

1 cycle %

0.1 s %

1 s %



Required Offered

2.19. Method of cooling

2.20. Ambient temperature range C

2.21. Maximum temperature rise (inside) C

2.22. Ambient relative humidity %

2.23. Method of protecting inverters against high intensity D.C voltage surges

2.24. Mean time between failure (MTBF) Years

2.25. Dimensions mm

2.26. Weight kg

3. STATIC SWITCH

Bidder shall fulfil the detailed description of offered static switch possibility with data and diagram

4. ISOLATION BY-PASS TRANSFORMER



Required Offered

4.1. Manufacturer

4.2. Standard applied


4.4. Maximum continuous capacity VA

4.5. Number of phase 1

4.6. Rated voltage under full load V

4.7. Protection class IP

4.8. Dimensions overall mm

4.9. Total weight kg

5. MANUAL BY-PASS SWITCH

5.1. Manufacturer



Required Offered

5.2. Type of designation

5.3. Rated current at 50°C A

6. DISTRIBUTION BOARD

6.1. Manufacturer


6.3. Degree of protection IP 51

6.4. Busbar insulation material

6.5. Number of circuits

6.6. Details of Miniature Circuit Breakers (MCBs)

Manufacturer

Type designation

Number of poles



Required Offered

Standards

Rated current at 50oC A

Rated breaking capacity kA

Remote signalling

Manufacturer quality system in accordance with ISO 9000, 9001, 9002, 9003 and 9004

yes

Type test certificate to be issued by independent laboratory or independently witnessed type test certificate available yes


L. 400/220kV POWER TRANSFORMERS (AIS-AIS) UNIT DATA

Required Offered

1. Power Transformer

Manufacturer & Place of manufacturing

Type designation

Type

Three phase Autotransformer, oil-immersed, core type with stabilising tertiary winding

Yes

Standards IEC 60076, 60137, 60214

Altitude (If > 1000 m) m

Ambient temperature (Zone 1 – within IEC reference values, e.g. inland at altitude)

- Maximum- Average of hottest month- Annual average

Ambient temperature (Zone 2 – within IEC reference values, e.g. Coastal with high annual average)

- Maximum- Average of hottest month- Annual average

oC

oC

oC

oC

oC

oC

40

30

20

45

35

30



Required Offered

Mounting Outdoor

Rated voltage ratio (HV/LV) kV 400/220

Rated frequency Hz 50

Vector group YNa0(d)

Cooling – 2-stage ONAN/ONAF1/ONAF2 or

ONAN/ONAF/OFAF

Function of tertiary winding (TV) Aux. supply

Method of earthing

- HV (Series) winding Solid

- LV (Common) winding Solid

- TV winding Grounded at one point

Type of windings (graded/non-graded)

- HV winding (Series) Graded

- LV winding (Common) Graded

- TV winding Non-graded

Rated voltage of windings (Ur)

- HV winding kV 400



Required Offered

- LV winding- TV windingNote*: approximate; to manufacturer’s preference

kV

kV

220

11*

Highest voltage for equipment (Um)

- HV winding kV 420

- LV winding kV 245

- TV winding kV 12*

Rated lightning impulse withstand voltage at:

- HV terminal kV 1425

- LV terminal kV 1050

- Neutral terminal kV 170

- TV winding ≥75

Rated switching impulse voltage

- HV terminals- LV terminals

kV

kV

1050

850

Rated power frequency withstand voltage at

- HV terminal (design value only)- HV test value (IVPD enhancement level)- HV test value (IVPD PD measurement))

kV

kV

kV

630

416

365

- LV terminal (Design value) kV 460

- Neutral terminal kV 70

- TV terminal kV ≥28



Required Offered

Rated power at site conditions (ONAF2 or OFAF) MVA 200

Rated power at site conditions (ONAN) MVA 120

Rated power of tertiary at site conditions (Full cooling) MVA 5

Maximum temperature rise at rated power at (IEC shown, Zone 1)):

- Windings K 65

Hot spot of windings K 78

- Top oil K 60

- Oil at inlet of cooler K

- Oil at outlet of cooler K

- Core K

Maximum temperature rise at rated power at (,Zone 2):

- Windings- Hot spot of windings- Top oil

- Oil at inlet of cooler- Oil at outlet of cooler- Core

K

K

K

K

K

K

55

68

50

Temperature of winding due to short circuit duration of 2 s at rated load

- HV side short circuit rating of 50kA oC 250



Required Offered

- LV side short circuit rating of 40 kA oC 250

No-load losses at rated voltage and rated frequency kW

Load losses at 75C, and rated frequency:

- ONAF2 or OFAF rated power and principal tapping

- ONAF2 or OFAF rated power and maximum voltage ratio

- ONAF2 or OFAF rated power and minimum voltage ratio

- At ONAN rated power and principal tapping

Total auxiliary losses at full load kW

Maximum current density at rated power:

- HV (Series) winding A/mm2

- LV (Common) winding A/mm2

- TV winding A/mm2

- Tapping A/mm2

Symmetrical short circuit through current (duration 2 s) at system fault rating

- HV terminals (50 kA) kA

- LV terminals (40 kA) kA

Magnetising current (HV winding)

- At 90% rated voltage A





Required Offered

Maximum flux density in iron at rated voltage, power frequency and principal tapping at:

- Wound limbs T

- Unwound limbs T

- Yokes T

- Shields T

Maximum flux density in iron at power frequency, principal tapping and 105% rated voltage at:

- Wound limbs T

- Unwound limbs T

- Yokes T

- Shields T

Type of tap changing On-load

Manufacturer of on-load tap changer

Type designation of on-load tap changer

OLTC location (Provisional) LV line end

Type of flux voltage variation C.F.V.V

Tapping range (Provisional) +5%/-15%



Required Offered

Tapping step 1.25%

Number of steps (positions) 16 (17)

Arrangement of tappings (Linear, Coarse/Fine, Reversing)

Automatic voltage control Yes

Impedance voltage range at 75C, rated frequency and full rating (Provisional):

- At principal tapping > 14%

- At maximum voltage ratio >14%

- At minimum voltage ratio >14%

Resistance of winding at 75C and principal tapping:

- HV side /phase

- LV side /phase

Terminal connection

- HV terminal Outdoor bushing

- LV terminal Outdoor bushing

- Neutral terminal Outdoor bushing

- TV terminal Outdoor bushing



Required Offered

Bushing Creepage Distance (IEC class IV = 31mm/kV

- HV terminal (420 kV)- LV terminal (kV)- Neutral terminal (36 kV)- TV terminal (12 kV)

mm

mm

mm

mm

13020

7595

≥900

300

Cable box insulation N/A

- HV terminal “

- LV terminal “

- HV neutral terminal “

- LV neutral terminal “

Isolating links for test purposes N/A

- HV terminal “

- LV terminal “

- Tertiary earthing terminal “

Current transformers

HV-Bushing turrets Refer to Tender Drawings

- Number of cores


- Ratio (TR = turns ratio)

I core A

II core A

III core A



Required Offered

- Class

I core

II core

III core


I core V

II core V

III core V

- Exciting current (IE ) at Ek

I core mA

II core mA

III core mA

- Rated output (Burden to be 25-100% rated burden)

I core VA

II core VA

III core VA

LV Line (Only AIS connections)

- Number of cores



- Class






Required Offered

Neutral (HV REF)

- Number of cores



I core A

- Class

I core


I core V


I core mA


I core VA

Neutral – ends

- Number of cores



I core A

- Class

I core


I core V


I core mA




Required Offered

I core VA

All class PX CTs shall have a rated secondary current, ISN

A

Number of coolers per transformer

Number of stand-by coolers

Number of stand-by fans

Rating of each cooler kW

Oil

- Manufacturer

- Type designation

- Standards IEC 60296

- Minimum flash point C

- Viscosity

at 20C mm2/s

at 50C mm2/s

at 80C mm2/s

- Maximum dielectric strength for 1 min. kV

- Dielectric factor

- Acidity (neutralization value) mgKOH/g



Required Offered

Oil preservation system Air-bag

Types and arrangement of winding:

- HV (Series) winding

- LV (Common) winding

- TV winding

- Regulating

- Windings arrangement (i.e. core/TV/LV/HV/Taps)

Conductor Material (e.g., copper, work hardened copper, etc.)

- HV (Series) windings

- LV (Common)windings

- TV windings

- Regulating windings

Conductor insulation:

- HV (Series) windings

- LV (Common) windings- TV windings- Regulating windings

- Connecting leads from winding to tap changer

Calculated thermal time constant

- ONAN cooling min

- Full cooling min



Required Offered

Oil circulation (i.e., natural/partially directed/directed)

To the windings:

- HV windings (Series)

- LV windings (Common)


- TV windings

Through the windings:

- HV windings (Series)

- LV windings (Common)


- TV windings

Core construction:

- Taped/banded/bolted limbs

- Taped/banded/bolted yokes

- Taping/banding material

- Number of limbs

- Number of limbs wound

- Type of joint in magnetic core (90% butt, overlap, mitre, etc.)

- Type of core steel

- Specific loss of core steel at 1.5 tesla W/kg

Thickness of transformer tank

- Sides mm



Required Offered

- Bottom mm

- Top mm

Material of transformer tank

Thickness of radiator plates mm

Total volume of conservator Litre

Minimum volume of conservator between highest and lowest levels as percentage of total cold oil at 15C volume of transformer 7.5%

Volumetric expansion of oil from 0 to 90C m3

Pressure increase inside tank due to expansion of oil

Masses of transformer

- Core and coils kg

- Total mass excluded oil kg

- Oil mass in tank kg

in radiators kg

total kg

- Total mass kg

Mass of transformer as arranged for transport (heaviest part)

kg



Required Offered

Dimensions of transformer arranged for transport

- Height m

- Width m

- Length m

Filling medium of transformer tank for shipment

Maximum sound pressure level (NEMA TR1 – 5dB(A)) dB(A) 74

Conservator vessel, radiators, fan grilles, control boxes or cubicles and pipework anticorrosion protection

Hot dip galvanized and painted

Tank anticorrosion protection

Supply voltage for transformer auxiliaries V 415/240 AC

Control/Protection voltage V 110 DC

Manufacturer quality assurance Yes

- According to ISO 9000, 9001, 9002, 9003 and 9004 Validity

Type test certificate to be issued by:

- Independent laboratory or independently witnessed type test certificate

Yes

1.78 Special Tests to be performed:

As Type test = T

As Routine test = R



Required Offered

- Measurement of zero-sequence impedance- Determination of sound levels- Measurement of harmonics of no-load current- Frequency response analysis (FRA)- Check of external coating- Short circuit withstand test/calculations

Yes (T)

Yes (T)

Yes (T)

Yes (R)

Yes R)

Yes (Calculation)


L. 400 kV 100 MVAr SHUNT REACTOR UNIT DATA

Required Offered

1. Shunt Reactor

1.1 Manufacturer & Place of manufacturing


1.3 Type Outdoor, Oil Immersed

1.4 Construction (Gapped core/Air-cored shielded)

1.5 Principal standards IEC 60076-1,-2,-3, -6

1.6 Max ambient (Design) temperature

Annual average temperature

oC

oC

40

30

1.7 Altitude m <1000

1.8 Rated voltage kV 400

1.9 Highest voltage for equipment, Um; Reactor must be able to operate continuously at this voltage.

kV 420

1.10 Rated frequency Hz 50



Required Offered

1.11 Vector group YN

1.12 Cooling ONAN

1.13 Method of earthing Solid

1.14 Type (graded/non-graded) of windings Graded

1.15 Rated lightning impulse withstand voltage at:

- HV terminals kV 1425

- HV neutral-end terminals kV 125

1.16 Rated switching impulse voltage kV 1050

1.17 Rated power frequency withstand voltage at

- HV terminals (IVPD enhancement) kV 416

- HV neutral-end terminals kV 50

1.18 Rated power:

- Rated current IN

- Max continuous current at Um

A

A

144

152

- Rated (reactive) power at Ur MVAr 100

- Rated reactance XN /phase 1600

- Zero sequence reactance X0

- Mutual reactance XM /phase



Required Offered

1.19 Magnetic characteristic: Linear to percent of rated voltage

% 105

1.20 Maximum temperature rise at rated power at:

- Windings K 55

- Hot spot of windings K 68

- Top oil K 50



- Core- Tank Wall

K

K

1.21 Losses at rated voltage and rated frequency kW

1.22 Maximum current density at rated power:

- HV winding A/mm2

1.23 Maximum flux density at rated voltage, power frequency:

- Wound limbs/core packets T

- Yokes- Shield

T

T

1.24 Resistance of winding at 75C and principal tapping: /phase



Required Offered

1.25 Terminal connection

- Bushing standards- Pollution Class - Is KD Correction factor required? (mm/kV)

IEC 60137

IV (31)

Yes

- HV terminals- Minimum Voltage Class- Minimum Current rating - Manufacturer- Manufacturers designation- Type (OIP/RIP)

kV

A

Outdoor Bushing

420

400

- HV neutral-end terminals- Minimum Voltage Class- Minimum Current rating - Manufacturer- Manufacturers designation- Type (OIP/RIP/Porcelain)

kV

A

Bushing

24

400

Porcelain


1.26a HV-Bushing turrets (provisional – refer to protection drawings)

- Number of cores 2



I core A 800/400/1

II core A 800/400/1

- Class

I core 5P20

II core 5P20



Required Offered


I core V

II core V


I core mA

II core mA

- Rated output (Burden to be 25-100% rated burden) I core VA

II core VA

1.26b HV Neutral-End provisional – refer to protection drawings)

- Number of cores/phase 1



I core 800/400/1

- Class

I core 5P20


I core V


I core mA


1.26b HV Neutral



Required Offered

- Number of cores 1



I core 800/400/1

- Class

I core 5P20


I core V


I core mA



A

1.27 Radiators

- Tank or Separate Mounting- Number banks- Number of radiators elements per bank

1.28 Oil

- Manufacturer

- Type designation

- Standards IEC 60296

- Minimum flash point C



Required Offered

- Viscosity

at 20C mm2/s

at 50C mm2/s

at 80C mm2/s

- Maximum dielectric strength for 1 min. kV

- Dielectric factor

- Acidity (neutralization value) mgKOH/g

1.29 Oil preservation system

- Type (Bag/Membrane)- Breather- Oil Level Gauge Maintenance-free

Magnetic

1.30 Types and arrangement of winding:

1.31 Conductor Material (e.g., copper, work hardened copper, etc.)

1.32 Conductor type (CTC, other)

1.33 Conductor insulation:

1.34 Calculated thermal time constant Hours

1.35 Oil circulation (i.e., natural/partially directed/directed)

To the windings:



Required Offered

Through the windings:

1.36 Core construction:

- Core segment

- Core gaps

- Taped/banded/bolted limbs

- Taped/banded/bolted yokes- Taped/banded/bolted shield- Taping/banding material

- Number of limbs

- Type of joint in core (90% butt, overlap, mitre, etc.)

- Core steel

- Specific loss of core steel at 1.5 Tesla W/kg

1.37 Thickness of reactor tank

- Sides mm

- Bottom mm

- Top mm

1.38 Material of reactor tank

1.39 Thickness of radiator plates mm

1.40 Total volume of conservator litres



Required Offered

1.41 Minimum volume of conservator between highest and lowest levels as percentage of total cold oil at 15C volume of transformer 7.5%

1.42 Volumetric expansion of oil from 0 to 90C m3

1.43 Pressure increase inside tank due to expansion of oil

1.44 Masses of reactor

- Core and coils kg



in radiators kg

total kg

- Total mass kg

1.45 Mass of reactor as arranged for transport (heaviest part) kg

1.46 Dimensions of reactor arranged for transport

- Height m

- Width m

- Length m

1.47 Filling medium of reactor tank for shipment

1.48 Maximum noise level dB(A) 86



Required Offered

1.49 Conservator vessel, radiators, control boxes or cubicles and pipework anticorrosion protection

Hot dip galvanized and painted

1.50 Tank anticorrosion protection

1.51 Supply voltage for reactor auxiliaries V 415/240 AC

1.52 Control/Protection voltage V 110 DC

1.53 Manufacturer quality assurance

- According to ISO 9000, 9001, 9002, 9003 and 9004; List current accreditation

Yes

1.54 Type test certificate to be issued by:

- Independent laboratory or independently witnessed type test certificate

Yes

1.55 Routine tests

The IVPD test IEC 60076-3:2013 based on Ur

- 1 x 3-phase test- Enhanced level- 1 hour duration- Max PD level during 1 hour stage

kV

kV

kV

kV

pC

To IEC 60076-6

Yes

Yes

416

365

250

Note 2: The method of carrying out loss measurements and any limitations of manufacturer’s test field which restricts the test programme are to be advised with bid documents.


(R=Routine/All units: T=Type/1 unit))



Required Offered

- Measurement of zero-sequence reactance- Measurement of mutual reactance- Determination of sound levels- Measurement of harmonics- Verification of magnetic characteristic

Yes(T)

Yes(T)

Yes(R)

Yes(R)

Yes (T)

M. 11/0.415kV; 500kVA EARTHING/AUXILIARY TRANSFORMERS (CAF-CAF)

UNIT DATA

Required Offered

1. EARTHING/AUXILIARY TRANSFORMER 11/0.415KV; WITH 500 KVA AUXILIARY WINDING



UNIT DATA

Required Offered

1.Manufacturer & Place of manufacturing


Type Three phase, oil immersed,

core type

Standards IEC 60076-1, -2, -3, -5, -6,-10,

NEMA TR1 (Noise)

Mounting Outdoor, wheel

Rated voltage ratio kV 11/0.415

Rated frequency Hz 50

Vector group ZNyn1

Cooling ONAN

Method of earthing

- HV winding Solid

- LV winding Solid

Type (graded/non-graded) of windings

- HV winding Non-graded



UNIT DATA

Required Offered

- LV auxiliary winding Non-graded

Rated voltage of windings

- HV winding kV 11

- LV auxiliary winding kV 0.415

Highest voltage for equipment

- HV winding kV 12

- LV auxiliary winding kV 0.433

Rated lightning impulse withstand voltage at HV Terminal kV 75

Rated power frequency withstand voltage at

- HV terminal kV 28

- LV terminal kV 3

- HV neutral terminal kV 28

Rated power at site conditions kVA 500

Limitation and withstanding of fault current in neutral for 30s A 1050

Maximum temperature rise at rated power at:



UNIT DATA

Required Offered

- Windings K 55

- Hot spot of windings K 68

- Top oil K 50



- Core K

Temperature rise of winding due to short circuit duration of

2 s and HV side short circuit current of 25 kA

- Copper windings- Aluminium windings

oC

oC

250

200

No load losses at rated voltage and rated frequency kW

Load losses at 75C, and rated frequency, rated power and principal tapping:

Maximum current density at rated power:

- HV winding A/mm2

- LV auxiliary winding A/mm2

Symmetrical short circuit withstand current (duration 2 s) at:

- HV terminal kA 25

- LV auxiliary terminal kA

Magnetising current (HV winding)




UNIT DATA

Required Offered



Maximum flux density in core at rated voltage, power frequency and principal tapping

T

Type of tap changing Off-load

Type designation of off-load tap changer

Tapped winding HV

Tapping range +5% -5%

Tapping step 2.5%

Number of steps (positions) 4 (5)

Impedance voltage range at 75C and principal tapping:

- At principal tapping > 4%

- At maximum voltage ratio >4%

- At minimum voltage ratio >4%



UNIT DATA

Required Offered

Resistance of winding at 75C and principal tapping:

- HV side /phase

- LV auxiliary side /phase

Zero phase sequence impedance of inter-star windings at 75C (LV windings open-circuit)

/phase

Zero phase sequence impedance of LV windings at 75C (inter-star windings open-circuit)

/phase

Terminal connection

- HV + HVN terminalNote*: Separable connector, e.g. Euromold or similar

Air-filled cable box*

- LV + LVN terminal Air-filled cable box

Isolating link for test purposes (not required if separable connector allows testing)

- HV terminal No

- LV terminal No

LV fused switch incorporated in LV terminal box A Yes



UNIT DATA

Required Offered

Mounting of current transformer at

- HV terminal In tank

- Neutral terminals In tank or box

Current transformers Refer to Tender Drawings

HV Line

- Number of cores



I core

II core A

- Class

I core

II core


I core V

II core V


I core mA

II core mA


I core VA

II core VA

HV Neutral



UNIT DATA

Required Offered

- Number of cores



I core A

II core

III core

- Class

I core

II core

III core


I core

II core

III core


I core

II core

III core


I core

II core

III core

LV Line (Only AIS connections)

- Number of cores




UNIT DATA

Required Offered


I core

- Class

I core


I core


I core


I core

LV Neutral

- Number of cores



I core

- Class

I core


I core


I core


I core




UNIT DATA

Required Offered

Oil:

Manufacturer

Type designation

Standards IEC 60296

Minimum flash point oC

Viscosity

At 20oC mm2/s

At 50oC mm2/s

At 80oC mm2/s

Maximum dielectric strength for 1 min kV

Dielectric factor

Acidity (neutralization value) mgKOH/g

Type of dehydrating breather (Non-sealed transformers) Silicagel

Conductor material (e.g. copper, work hardened copper, etc.):

HV windings

LV windings

Conductor insulation:

HV winding

LV winding

Calculated thermal time constant min



UNIT DATA

Required Offered

Thickness of transformer tank

- Sides mm

- Bottom mm

- Top mm

Material of transformer tank

Thickness of radiator plates mm

Total volume of conservator litres

Masses of transformer

- Core and coils kg



in radiators kg

total kg

- Total mass kg

Mass of transformer as arranged for transport (heaviest part) kg

Dimensions of transformer arranged for transport

- Height m

- Width m

- Length m



UNIT DATA

Required Offered

Maximum noise level (to NEMA TR1) dB 56

Conservator vessel, radiators, fan grilles, control boxes or cubicles and pipework anticorrosion protection

Hot dip galvanized and

painted

Tank anticorrosion protection

Control/Protection voltage V 110 DC

Manufacturer quality assurance Yes

- According to ISO 9000, 9001, 9002, 9003 and 9004

Type test certificates to be issued by:

- Independent Laboratory or independently witnessed type test certificate

Yes


- Measurement of zero-sequence impedance- Determination of sound levels- Measurement of harmonics of no-load current- Vibration test

Yes

No

No

No


N. NEUTRAL EARTHING RESISTOR/ REACTOR UNIT DATA

Required Offered

1.1. Manufacturer

1.2. Type

1.3. Standards IEEE 32, IEC61000-6-3


1.5. Rated fault current A Refer to drawings

1.6. Continuous current A

1.7

1.8

1.9

1.10

1.11

Maximum operating time

Resistor material resistance cold

Temperature rise at rated voltage after 10 sec

Protection class

Installation: indoor/ outdoor

sec

Ohm

Deg C

10

1000


O. 400kV OVERHEAD LINE - Line conductor: 4 x Lark UNIT DATARequired Offered

1 LINE CONDUCTOR FITTINGS ACSR

1.1 Complete line conductor:

1.1.1 Nominal area per phase mm2 990

1.1.2 Number of conductors per phase No 4

1.1.3 Distance between conductor centres of one phase mm 400

1.2 Each single conductor:

1.2.1 Code name Lark

1.2.2 International Standard IEC 61089

1.2.3 National standard ASTM B 232

1.2.4 Material of conductor Aluminium/ Galvanised

Steel1.2.5 Number and diameter of wires No/mm Al 30/2.92

St 7/2.921.2.6 Total area of conductor mm2 247.8

1.2.7 Overall diameter of stranded conductor mm 20.44

1.2.8 Resistance of conductor (dc) at 20˚C ohm/km 0.1441

1.2.9 Mass of conductor (without grease) kg/km 925

1.2.10 Total mass of greased conductor (greased to Case 2 of IEC 61089)

kg/km

1.2.11 Ultimate rated strength of conductor Newton 90,250

1.2.12 Maximum tension of conductor in still air at “everyday” temperature

Newton 18,050

1.2.13 Assumed equivalent modulus of elasticity of conductor N/mm2 80,420

1.2.14 Assumed equivalent coefficient of linear expansion of conductor

per ˚C 1.78 x 10-5

1.2.15 Maximum length of conductor on drum km 5

1.3 CONDUCTOR GREASE:

1.3.1 Type

1.3.2 Minimum drop-point temperature ˚C 120

Mass of grease per kilometre of conductor (all inner layers greased – Case 2 to IEC 61089)

kg



1.4 VIBRATION DAMPING SYSTEM:

1.4.1 Type of system (vibration damper + spacer or spacer damper)

type

1.4.2 Vibration damper (if proposed)

1.4.2.1 Type of vibration damper type Stockbridge

1.4.2.2 National / International standard IEC 61897

1.4.2.3 Number of wires in messenger cable No 19

1.4.2.4 Conductor diameter range mm 20.44

1.4.2.5 Mass of damper kg

1.4.2.6 Maximum span for:

a. One vibration damper at each end of span m

b. Two vibration dampers at each end of span m

c. Three vibration dampers at each end of span m

1.4.2.7 Dimensions from clamp mouth to vibration damper attachment:

a. First damper mm

b. Second damper when required mm

c. Third damper when required mm

1.4.3 Spacer or spacer damper

1.4.3.1 Type of spacer or spacer damper



1.4.3.4 Mass kg

1.4.3.5 Symmetrical / asymmetrical in-span spacing

1.4.3.6 Maximum sub-span length m

NO’S 2 TO 3 NOT USED



4. EARTH CONDUCTOR AND FITTINGS Aluminium Clad Steel GW

4.1 Complete earth conductor system

4.1.1 Number of ACS earth conductors No 1

4.2 Each single earth conductor

4.2.1 International Standard No ASTM B416

4.2.2 Material of conductor Aluminium-clad steel

4.2.3 Number and diameter of wires No/mm 7/3.26

4.2.4 Total area of conductor mm2 58.6

4.2.5 Overall diameter of conductor mm 9.78

4.2.6 Mass of conductor kg/km 390

4.2.7 Ultimate strength of conductor Newton 71,000


Newton



per C 12.96 x 10-6

4.2.11 Minimum bending radius mm

4.2.12 Minimum length of conductor on drum km 4

4.3 Individual wires before stranding

4.3.1 Aluminium-clad steel ASTM B415

a. Grade of steel 20SA

4.4 Vibration damping system

4.4.1 Maximum span for:




OPGW EARTH CONDUCTOR AND FITTINGS

5 EARTH CONDUCTOR AND FITTINGS OPGW

5.1 Complete optical earth conductor system



5.1.1 Number of OPGW earth conductors No 1

5.2 Each single optical earth conductor (OPGW)

5.2.1 International Standard No IEE 1138IEC 60794-4-1

5.2.2 Material of conductor Aluminium Alloy/

Aluminium-clad steel

5.2.3 Number and diameter of wires No/mm

5.2.4 Total area of conductor mm2

5.2.5 Overall diameter of conductor mm

5.2.6 Mass of conductor kg/km <850

5.2.7 Ultimate strength of conductor Newton ≥ 93,000


Newton > 18,500

5.2.9 Assumed equivalent modulus of elasticity of conductor N/mm2 ≥ 70,000


per C ≤1.98 x 10-5


5.2.12 Short circuit current rating kA2s 496



5.3.1 Aluminium alloy Standard IEC 60104Minimum conductivity at 20ºC %IACS 52.5

5.3.2 Aluminium-clad steel Standard IEC 60232Grade of Steel 20SA


5.4.1 Maximum span for:a. One vibration damper at each end of span m



OPGW EARTH CONDUCTOR6 FIBRE OPTIC TRANSMISSION SYSTEM

6.1 Fibre optic data

6.1.1 Type Non-Zero Dispersion-

Shifted Single-Mode acc. to ITU G.655.



6.1.2 Wavelength nm

1550/1625

6.1.3 Number of fibres 48

6.1.4 Transmission attenuation:

a. at 1550 nm dB/km

< 0.22

b. at 1625 nm dB/km

< 0.24

6.1.5 Transmission bandwidth MHz/km

> 10 000

6.1.6 Fibre identification colour code

6.1.7 Chromatic dispersion

a. at 1550 nm ps/nm.km

< 2

b. at 1625 nm ps/nm.km

< 12.4

6.1.8 Splicing loss dB

< 0.1

6.1.9 Polarisation Mode Dispersion (PMD) ps/√km

< 20


6.2 SDH Optical Multiplex Equipment and Regenerative Repeaters

6.2.1 Transmission mode Digital

6.2.2 Operating wavelength nm

1550

6.2.3 Optical transmitter DFB laser diode

6.2.4 Optical detector avalanche photodiode

6.2.5 Optical transmission rate:

a. STM-1 Mb/s

155.52

b. STM-4 Mb/s

622.08

6.2.6 Optical interface Compliant with ITU Rec G957 and Rec G958

6.2.7 Electrical digital interface Compliant with ITU Rec G709

6.2.8 Maximum input attenuation dB

< 6

6.2.9 Maximum admissible jitter Compliant with ITU Rec G812

6.2.10 Transmission delay s < 1



6.2.11 Operating voltage Vdc

48 (+20% -15%)

6.3 Solar arrays power supply system

6.3.1 Type of solar cell Silicon based

6.3.2 Type of batteries Nickel cadmium

6.3.3 Minimum battery autonomy (continuous operation) hours

96

6.3.4 Output voltage V dc

48 (+5%)

6.3.5 Charger and control unit

6.3.6 Manufacturer


6.3.8 Place of manufacture

6.3.9 Is local technical support provided in Kenya? Y/N

6.3.10 Minimum lighting level required for proper operation of the solar arrays power supply system

lux

6.3.11 Output supply voltage range of the system V dc

6.3.12 Total power output of the solar arrays system W

6.3.13 Details of control equipment provided

6.3.14 Charging current A

6.3.15 Details of alarm monitoring facilities provided

6.3.16 Details of remote alarm indications provided

6.3.17 Operating temperature range ºC

6.3.18 Operating relative humidity range (non-condensing) %rh

6.3.19 Protection rating IP Standard

6.3.20 Vibration IEC Standard

6.3.21 Shock IEC Standard

6.3.22 Dimension of equipment (H W D) mm mm mm

6.3.23 Mass kg

6.3.24 Mean time between failures (MTBF) hours



6.3.24 Mean time to repair (MTTR) hours

6.4 Optical regenerative repeaters

(to be completed for each type of repeater used)

6.4.1 Manufacturer

6.4.2 Model reference

6.4.3 Place of Manufacture

6.4.4 Number Provided No

6.4.5 Is local technical support provided in Kenya? Y/N

6.4.6 Regenerator section length (without the use of optical booster/amplifiers)

km

6.4.7 Regenerator section length (with the use of optical boosters/amplifiers)

km

6.4.8 Nominal operating wavelength nm

6.4.9 Transmission rate M

b/s6.4.10 Type of optical transmitter

6.4.11 Minimum transmit level dBm

6.4.12 Maximum transmit level dBm

6.4.13 Type of optical receiver

6.4.14 Receiver sensitivity for BER 10-9 dBm

6.4.15 Is interworking with PDH systems possible?

6.4.16 Details of interfacing with the Telecommunications Management System

6.4.17 Service channels:

a. Number of channels

b. Bit rate

c. Type of interface

6.4.18 Engineers order wire

a. 2 wire/4 wire interface

b. Impedance

c. Bit rate (for digital)

d. Selective calling facility



6.4.19 Details of alarm monitoring facilities

6.4.20 Voltage limits for satisfactory operation

a. Nominal voltage V dc

b. Maximum voltage V dc

c. Minimum voltage V dc

6.4.21 Anticipated loading in volt-amperes at 48 V dc. VA

6.4.22 Electromagnetic interference

IEC Standard

6.4.23 Operating temperature range C

6.4.24 Operating relative humidity range(non-condensing)

%rh




6.4.28 Details of ventilation required

6.4.29 Mass of complete equipment kg

6.4.30 Mean time between failures (MTBF) hours

6.4.31 Mean time to repair (MTTR) hours

6.4.32 Dimensions of cubicle rack mm mm mm

6.5 Solar cells(to be completed for each type of solar cell used)

6.5.1 Manufacturer



6.5.4 Number of solar cells provided No

6.5.5 Type of solar cells

6.5.6 Lighting level range required for proper operation of the solar cell

lux

6.5.7 Voltage output range of each solar cell V dc

6.5.8 Power output of each solar cell W

6.5.9 Method of mounting solar panels








6.5.15 Dimension of each solar array (H W D) mm mm mm

6.5.16 Dimension of complete solar arrays system (H W D)

mm mm mm

6.5.17 Mass of each solar array kg

6.5.18 Mass of complete solar arrays system kg

6.6 Batteries (to be completed for each type of battery used)

6.6.1 Manufacturer



6.6.4 Number of batteries provided No

6.6.5 Type of batteries

6.6.6 Number of cells per battery No

6.6.7 Voltage output of each battery cell

V dc

6.6.8 Battery voltage output range V dc

6.6.9 Total capacity of the battery system Ah

6.6.10 Time required to recharge totally discharged batteries to full capacity

hours

6.6.11 Autonomy of the battery backup support hours

6.6.12 Ampere hour capacity at 96 hour discharge rate with average temperature at 50ºC

Ah





6.6.15 Dimension of each battery (H W D) mm mm mm

6.6.16 Dimension of complete battery backup system (H W D)

mm mm mm

6.6.17 Mass of each battery/ complete battery backup system

kg

7.0 Insulator and fittings

7.1 Insulator units: Long Rod

7.1.1 Suspension units

7.1.1.1 Shed profile aerodynamic

7.1.1.2 Appropriate IEC Number IEC 61109

7.1.1.3 Material Silicone rubber

7.1.1.4 Couplinga. Standardb. Type (recommended only)c. Size (recommended only)

IEC 61120Ball/Socket

20

7.1.1.5 Minimum failing load kN 160

7.1.1.6 Outside diameter: mm

7.1.1.7 Mass of unit kg

7.1.1.8 Minimum dry lightning impulse withstand kV

7.1.1.9 Minimum wet power frequency withstand kV

7.1.1.10 Creepage distance mm 16000

7.1.2 Tension units




7.1.2.4 Couplinga. Standardb. Type (recommended only)c. Size (recommended only)


20


7.1.2.6 Outside diameter:







7.2 Insulator sets complete

7.2.1 Suspension sets

7.2.1.1 Number of insulator strings in parallel 1 / 2

7.2.1.2 Minimum failing load, complete set kN 120 /2*120

7.2.1.3 Overall length of set including clamps and all fittings mm ≤ 5150

7.2.1.4 Arcing Gap mm 29007.2.1.5 Mass of set, complete with all fittings kg

7.2.1.6 Overall length of creepage path per string: Mm 16000

7.2.1.7 50 Hz voltage tests:

a. Dry withstand voltage of complete set: kV 845

b. One minute wet withstand voltage of complete set : kV 680

7.2.1.8 50% Impulse withstand: a. 1.2/50 s negative wave: kV 1550

b. 1.2/50 s positive wave: kV 1550

7.2.1.9 Corona test voltage kV 290

7.2.1.10 Set RI test voltage kV 275

7.2.1.11 Set radio noise level dB 45

7.2.2.12 Short circuit current withstand for 1 second (any part of set) kA 31.5

7.2.2 Tension sets

7.2.2.1 Number of insulator strings in parallel 2

7.2.2.2 Elastic limit load of set fittings:

a. Common to each string kN

b. Common to conductor kN

c. Separate for each sub-conductor kN

7.2.2.3 Minimum failing load, complete set kN 320

7.2.2.4 Overall length of set including clamps and all fittings mm

All flashover and withstand voltage levels corrected to normal temperature and pressure in accordance with IEC 60383Section VI – Requirements of 677Environmental Guidelines for Contractors


7.2.2.5 Arcing Gap mm 2900

7.2.2.6 Mass of set, complete with all fittings kg

7.2.2.7 Overall length of creepage path per string: mm 16000


a. Dry withstand voltage of complete set: kV 845

b. One minute wet withstand voltage of complete set:

kV 690

7.2.2.9 50% Impulse withstand:

a. 1.2/50 s negative wave: kV 1550

b. 1.2/50 s positive wave: kV 1550





7.3 Earth conductor sets

7.3.1 Minimum failing load

a. Suspension set kN

b. Tension set kN

7.3.2 Short circuit current withstand for 1 second (any part of set)

kA 31.5

8 Clearances

8.1 Minimum clearance between live metal and tower steelwork:-

a. with suspension insulator set swing, at 65º mm 1100

b. with suspension insulator set swing, 0 - 10º mm 3100

c. with suspension insulator set swing 10 - 35º mm 1800

8.4 Minimum clearance to steelwork on which a man may stand for live line maintenance (crossarm floor)

m 5.0

8.5 Downleads – minimum clearances:

a. phase to phase clearance in still air mm 4900

All flashover and withstand voltage levels corrected to normal temperature and pressure in accordance with IEC 60383



b. phase to phase clearance under conditions of maximum (opposing) swing and sag

mm 3700

8.6 Earth conductor suspension clamps, unobstructed transverse swing angle from vertical

degrees 0 – 50

8.7 Earth conductor maximum shielding angle from vertical at tower attachment point over outer line conductors

degrees 17

9.0 QUALITY OF TOWER MATERIALS

9.1

Steel members

9.1.1 Grade/standard: EN10025-2

a. Mild steel S235

b. High tensile steel S355

9.1.2 Tensile breaking stress:

a. Mild steel N/mm2 235

b. High tensile steel N/mm2 355

9.1.3 Elongation on breaking:

a. Mild steel %

b. High tensile steel %

9.1.4 Yield point as percentage of breaking stress:

a. Mild steel %


9.2

Steel nuts and bolts

9.2.1 Grade/standard:

a. Mild steel 5.6

b. High tensile steel 8.8


a. Mild steel N/mm2

b. High tensile steel N/mm2


a. Mild steel %



P. 220 kV OVERHEAD LINE – Line Conductor 1 x Canary UNIT DATA

Required Offered

1.0 – 3.0

4.0

Not used

Line conductor and fittings ACSR

4.1 Complete line conductor:

4.1.1 Nominal area per phase mm2 515

4.1.2 Number of conductors per phase No 1

4.2 Each single conductor:

4.2.1 Code name Canary

4.2.2 International Standard IEC 61089

4.2.3 National standard ASTM B 232

4.2.4 Material of conductor Aluminium/ Galvanised

Steel

4.2.5 Number and diameter of wires No/mm Al 54/3.28

St 7/3.28



Required Offered


4.2.7 20. OVERALL DIAMETER OF STRANDED CONDUCTOR

mm 29.52

4.2.8 Resistance of conductor (dc) at 20˚C ohm/km 0.06328

4.2.9 Mass of conductor (without grease) kg/km 1726

4.2.10 Total mass of greased conductor (greased to Case 2 of IEC 61089)

kg/km

4.2.11 Ultimate rated strength of conductor Newton 142,040


Newton 28,408



per ˚C 1.93 x 10-5

4.2.15 Maximum length of conductor on drum km 3

4.3 Conductor grease:

4.3.1 Type



Required Offered

4.3.2 Minimum drop-point temperature ˚C 120

4.3.3 Mass of grease per kilometre of conductor (all inner layers greased – Case 2 to IEC 61089)

kg

4.4 Vibration damping system:

4.4.1 Type of system (vibration damper) type

4.4.2 VIBRATION DAMPER

4.4.2.1 Type of vibration damper type Stockbridge


4.4.2.3 Number of wires in messenger cable No 19


4.4.2.5 Mass of damper kg

4.4.2.6 Maximum span for:





Required Offered


4.4.2.7 Dimensions from clamp mouth to vibration damper attachment:

a. First damper mm

b. Second damper when required mm

c. Third damper when required mm

P. 220 kV OVERHEAD LINE – Earth Conductor UNIT DATARequired Offered

5.0 Earth Conductor and fittings Aluminium

Clad Steel GW

5.1 Complete earth conductor system

5.1.1 Number of ACS earth conductors No 1

5.2 Each single earth conductor

5.2.1 International Standard No ASTM B416

5.2.2 Material of conductor Aluminium-clad steel

5.2.3 Number and diameter of wires No/mm 7/3.26


5.2.5 Overall diameter of conductor mm 9.78

5.2.6 Mass of conductor kg/km 390

5.2.7 Ultimate strength of conductor Newton 71,000


Newton




Required Offered


per C 12.96 x 10-6




5.3.1 Aluminium-clad steel ASTM B415

b. Grade of steel 20SA






6.0 Earth Conductor and fittings OPGW

6.1 Complete optical earth conductor system

6.1.1 Number of OPGW earth conductors No 1

6.2 Each single optical earth conductor (OPGW)

6.2.1 International Standard No IEE 1138IEC 60794-4-1

6.2.2 Material of conductor Aluminium Alloy/

Aluminium-clad steel

6.2.3 Number and diameter of wires No/mm

6.2.4 Total area of conductor mm2

6.2.5 Overall diameter of conductor mm

6.2.6 Mass of conductor kg/km <850

6.2.7 Ultimate strength of conductor Newton ≥ 93,000


Newton > 18,500

6.2.9 Assumed equivalent modulus of elasticity of conductor N/mm2 ≥ 70,000



Required Offered


per C ≤1.98 x 10-5


6.2.12 Short circuit current rating kA2s 496



6.3.1 Aluminium alloy Standard IEC 60104Minimum conductivity at 20ºC %IACS 52.5

6.3.2 Aluminium-clad steel Standard IEC 60232Grade of Steel 20SA



d. One vibration damper at each end of span m

e. Two vibration dampers at each end of span m

f. Three vibration dampers at each end of span m

7.0 FIBRE OPTIC TRANSMISSION SYSTEM

7.1 Fibre optic data

7.1.1 Type Non-Zero Dispersion-

Shifted Single-Mode acc. to ITU G.655.

7.1.2 Wavelength nm

1550/1625

7.1.3 Number of fibres 48

7.1.4 Transmission attenuation:

c. at 1550 nm dB/km

< 0.22

d. at 1625 nm dB/km

< 0.24

7.1.5 Transmission bandwidth MHz/km

> 10 000



Required Offered

7.1.6 Fibre identification colour code

7.1.7 Chromatic dispersion

c. at 1550 nm ps/nm.km

< 2

d. at 1625 nm ps/nm.km

< 12.4

7.1.8 Splicing loss dB

< 0.1

7.1.9 Polarisation Mode Dispersion (PMD) ps/√km

< 20


8.0 Insulator and fittings

8.1 Insulator units: Long Rod

8.1.1 Suspension units




8.1.1.4 Couplingd. Standarde. Type (recommended only)f. Size (recommended only)


16


8.1.1.6 Outside diameter: mm




Required Offered




8.1.2 Tension units




8.1.2.4 Couplingd. Standarde. Type (recommended only)f. Size (recommended only)


16


8.1.2.6 Outside diameter:





8.2 Insulator sets complete

8.2.1 Suspension sets

8.2.1.1 Number of insulator strings in parallel 1 / 2

8.2.1.2 Minimum failing load, complete set kN 70 /2*70

8.2.1.3 Overall length of set including clamps and all fittings mm ≤ 3100

8.2.1.4 Arcing Gap mm 21008.2.1.5 Mass of set, complete with all fittings kg

8.2.1.6 Overall length of creepage path per string: Mm 9300


c. Dry withstand voltage of complete set: kV 715

d. One minute wet withstand voltage of complete set : kV 540


All flashover and withstand voltage levels corrected to normal temperature and pressure in accordance with IEC 60383Section VI – Requirements of 677Environmental Guidelines for Contractors


Required Offered

c. 1.2/50 s negative wave: kV 1150

d. 1.2/50 s positive wave: kV 1150





8.2.2 Tension sets

8.2.2.1 Number of insulator strings in parallel 1/2

8.2.2.2 Minimum failing load, complete set kN 120/2*120

8.2.2.3 Overall length of set including clamps and all fittings mm

8.2.2.4 Arcing Gap mm 2100

8.2.2.5 Mass of set, complete with all fittings kg

8.2.2.6 Overall length of creepage path per string: mm 9300


c. Dry withstand voltage of complete set: kV 715

d. One minute wet withstand voltage of complete set:

kV 540


c. 1.2/50 s negative wave: kV 1150

d. 1.2/50 s positive wave: kV 1150





8.3 Earth conductor sets

All flashover and withstand voltage levels corrected to normal temperature and pressure in accordance with IEC 60383



Required Offered

8.3.1 Minimum failing load

c. Suspension set kN

d. Tension set kN

8.3.2 Short circuit current withstand for 1 second (any part of set)

kA 31.5

9.1 – 9.2 Not used

9.3 Minimum clearance between live metal and tower steelwork:-

a. with suspension insulator set swing, at 65º mm 500

b. with suspension insulator set swing, 0 - 10º mm 2150

c. with suspension insulator set swing 10 - 35º mm 1500

9.4 Minimum Clearance to steelwork on which a man may stand for live line maintenance (crossarm floor)

m 3.9

9.5 Downleads – minimum clearances:

c. phase to phase clearance in still air mm 3500

d. phase to phase clearance under conditions of maximum (opposing) swing and sag

mm 2650

9.6 Earth conductor suspension clamps, unobstructed transverse swing angle from vertical

degrees 0 – 50

9.7 Earth conductor maximum shielding angle from vertical at tower attachment point over outer line conductors

degrees 3

10.0-13.0 Not used

14.0 QUALITY OF TOWER MATERIALS

14.1

Steel members

14.1.1 Grade/standard: EN10025-2

a. Mild steel S235

b. High tensile steel S355


a. Mild steel N/mm2 235

b. High tensile steel N/mm2 355




Required Offered

a. Mild steel %

14.1.4 Yield point as percentage of breaking stress:

a. Mild steel %


14.2

Steel nuts and bolts

14.2.1 Grade/standard:

a. Mild steel 5.6

b. High tensile steel 8.8


a. Mild steel N/mm2

b. High tensile steel N/mm2


a. Mild steel %



· Web viewIEC 62271-100, 62271-102, 62271-1, 62155, 60044-1, 60044-5, 60383, 60815 1.2. Rated...

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Transcript of · Web viewIEC 62271-100, 62271-102, 62271-1, 62155, 60044-1, 60044-5, 60383, 60815 1.2. Rated...