MINISTRY OF ELECTRICITY -...

MINISTRY OF ELECTRICITY

IRAQ SUPERGRID PROJECTS 400/132 KV GIS SUBSTATIONS VOLUME 3 TECHNICAL SCHEDULES JANUARY 2007

400kV GIS SUBSTATION – VOLUME 3

LIST OF REVISIONS

Current Rev.

Date Page affected

Prepared by

Checked by (technical)

Checked by (quality

assurance)

Approved by

1 2 3 4 5

19.11.04 18.03.05 Aug 05 Oct 05 Jan 07

ALL ALL ALL ALL ALL

SSA JK/MH

JK MH/MH JK/MH

JW JK/MH JK/MH

JW JW

JW JW JW JW JW

JW JW JW JW JW

REVISION HISTORY

3 Aug 05 ALL Updated with MOE comments and general alignment across volumes.

4 Oct 05 ALL Specification split into GIS and AIS versions. Capacitor specification rationalised. Impulse withstand and Power frequency withstand values reviewed in accordance with IEC 60694. Details for 11 kV (Tertiary) shunt reactors added.

5 Jan 07 ALL General review


CONTENT SHEET

VOLUME 1 TECHNICAL SPECIFICATION – PLANT VOLUME 2 TECHNICAL SPECIFICATION & SCHEDULES – CIVIL WORKS VOLUME 3 TECHNICAL SCHEDULES – PLANT


CONTENTS

Page No.

SCHEDULE A - MILESTONES FOR THE PURPOSE OF PAYMENT AND HANDOVER TO THE CLIENT ............................................................ A.1

SCHEDULE B - TIME PERIODS FOR PROCUREMENT, DESIGN, MANUFACTURE, INSPECTION, TESTING, DELIVERY, INSTALLATION, COMMISSIONING AND HANDOVER ..................... B.1

SCHEDULE C - MANUFACTURERS AND PLACES OF MANUFACTURE, TESTING AND INSPECTION..............................................................C.1

SCHEDULE C1 - 400 KV GAS INSULATED SWITCHGEAR..........................................C.1

SCHEDULE C2 - 400 KV AIS OUTDOOR SWITCHGEAR .............................................C.2

SCHEDULE C3 - 132 KV GAS INSULATED SWITCHGEAR..........................................C.2

SCHEDULE C4 - 132 KV AIS OUTDOOR SWITCHGEAR .............................................C.3

SCHEDULE C5 - 11 KV METALCLAD SWITCHGEAR...................................................C.4

SCHEDULE C6 - TRANSFORMERS REACTORS AND AUXILIARY PLANT.................C.4

SCHEDULE C7 - LV SERVICES EQUIPMENT...............................................................C.5

SCHEDULE C8 - CABLES ..............................................................................................C.5

SCHEDULE C9 - SUBSTATION CONTROL AND PROTECTION SYSTEMS`...............C.6

SCHEDULE D - TECHNICAL PARTICULARS ..............................................................D.1

SCHEDULE D1 - 400 KV GAS INSULATED SWITCHGEAR........................................D1.1

SCHEDULE D2 - 400 KV OPEN TERMINAL SWITCHGEAR .......................................D2.1

SCHEDULE D3 - 132 KV GAS INSULATED SWITCHGEAR........................................D3.1

SCHEDULE D4 - 132 KV OPEN TERMINAL SWITCHGEAR .......................................D4.1

SCHEDULE D5 - 11 KV (TERTIARY) METALCLAD SWITCHGEAR............................D5.1

SCHEDULE D6 - CRANE FOR GIS BUILDING ............................................................D6.1

SCHEDULE D7 - 400/132 KV POWER TRANSFORMERS ..........................................D7.1

SCHEDULE D8 - 400 KV SHUNT REACTORS.............................................................D8.1

SCHEDULE D9 - EARTHING TRANSFORMERS (11 KV TERTIARY) .........................D9.1

SCHEDULE D10 - AUXILIARY TRANSFORMERS (11 KV TERTIARY).......................D10.1


CONTENTS - Continued

Page No.

SCHEDULE D11 - CAPACITORS (11 KV TERTIARY) .................................................D11.1

SCHEDULE D12 - 11 KV (TERTIARY) SHUNT REACTORS .......................................D12.1

SCHEDULE D13 - LVAC SWITCHGEAR......................................................................D13.1

SCHEDULE D14 - DC SYSTEM....................................................................................D14.1

SCHEDULE D15 - 220 V AC UNINTERRUPTIBLE POWER SUPPLY.........................D15.1

SCHEDULE D16 - 132/11 KV POWER CABLES ..........................................................D16.1

SCHEDULE D17 - LV CABLES .....................................................................................D17.1

SCHEDULE D18 - PROTECTION SYSTEM .................................................................D18.1

SCHEDULE D19 - SUBSTATION CONTROL SYSTEM ...............................................D19.1

SCEHDULE D20 - CONTROL, OPERATION, INDICATION AND ALARM CIRCUITS .D20.1

SCHEDULE D21 - BUSHINGS......................................................................................D21.1

SCHEDULE E - TECHNICAL DOCUMENTATION/DRAWINGS AND OPERATING AND MAINTENANCE INSTRUCTIONS.............................................. E.1

SCHEDULE E1 - DRAWINGS ISSUED WITH THE TENDER ........................................ E.1

SCHEDULE E2 - DRAWINGS REQUIRED WITH TENDER........................................... E.2

SCHEDULE E3 - CONTRACT DRAWING REQUIREMENTS ........................................ E.3

SCHEDULE E4 - CONTRACTOR’S SUBMITTALS - DRAWING AND DESIGN DATA.. E.5

SCHEDULE E5 - INSTALLATION AND MAINTENANCE INSTRUCTIONS ................... E.7

SCHEDULE E6 - FINAL RECORDS ............................................................................... E.7

SCHEDULE F - DEVIATIONS FROM THE TECHNICAL SPECIFICATION ................. F.1

SCHEDULE G - QUANTITIES AND PRICES ................................................................G.1

SCHEDULE J1 - RECOMMENDED SPARES ...............................................................J1.1

SCHEDULE J2 - SPECIAL TOOLS, TEST EQUIPMENT..............................................J2.1

SCHEDULE J3 - TRANSFORMERS AND REACTORS QUANTITIES AND PRICES FOR SPARE PARTS..........................................................................J3.1

SCHEDULE K - BUILDING SERVICES ........................................................................ K.1


SCHEDULE L - HEATING, VENTILATION AND AIR CONDITIONING.........................L.1


SCHEDULE A

MILESTONES FOR THE PURPOSE OF PAYMENT AND HANDOVER TO THE CLIENT

A.1 400kV SUBSTATION – VOLUME 3

SCHEDULE A - MILESTONES FOR THE PURPOSE OF PAYMENT AND HANDOVER TO THE CLIENT

(Information to be provided with Tender) The Tenderer is to indicate all milestones identified within the programme for the works as defined in this Project Specification. The milestones should align with those included in the priced (fixed sum) activity schedule.

Item No

Description Section


SCHEDULE B

TIME PERIODS FOR PROCURMENT, DESIGN, MANUFACTURE, INSPECTION, TESTING, DELIVERY, INSTALLATION, COMMISSIONING AND HANDOVER

B.1 400kV GIS SUBSTATION – VOLUME 3

SCHEDULE B - TIME PERIODS FOR PROCUREMENT, DESIGN, MANUFACTURE, INSPECTION, TESTING, DELIVERY, INSTALLATION, COMMISSIONING AND

HANDOVER

(Information to be provided with Tender. All time periods are weeks from date of Notice to Proceed)

Description

Time within which:

1 All arrangement and equipment drawings shall be submitted for approval

2 All schemes and functional drawings shall be submitted for approval

3 All wiring and cable diagrams / schedules shall be submitted

4 Plant shall be available for final inspection / test in manufacturer’s works

5 Plant shall be delivered to site

6 Plant shall be installed

7 Overall works are commissioned

8 Overall works are handed over to client


SCHEDULE C

MANUFACTURERS AND PLACES OF MANUFACTURE, TESTING AND INSPECTION

C.1 400kV GIS SUBSTATION – VOLUME 3

SCHEDULE C - MANUFACTURERS AND PLACES OF MANUFACTURE, TESTING AND INSPECTION

(Information to be supplied with Tender)

SCHEDULE C1 – 400 KV GAS INSULATED SWITCHGEAR

Item

Manufacturer

Place of manufacture

Place of testingand inspection

400 kV GIS:

Current transformers

Voltage transformers

Surge arresters

Circuit breaker operating mechanisms

Circuit breaker operating mech. motors

Disconnector/earth switch drive motors

Support insulators

Expansion bellows

Bursting discs

Gaskets

Conductors

Enclosures

SF6 Gas handling plant

SF6 Gas

Partial discharge capacitive couplers

Transducers

Local control cubicles

Indicating instruments

Control switches

Status indicators

Any deviation from this Schedule shall be notified as soon as possible for the Engineer's approval.


SCHEDULE C - MANUFACTURERS AND PLACES OF MANUFACTURE, TESTING AND INSPECTION – CONT

SCHEDULE C2 – 400 KV AIS OUTDOOR SWITCHGEAR

Item

Manufacturer



400 kV AIS Current transformers

400 kV AIS Voltage transformers

400 kV AIS Surge arresters

400 kV AIS Disconnector/earth switches

Steel Structures

Conductor

Support insulators

Connectors

SCHEDULE C3 – 132 KV GAS INSULATED SWITCHGEAR

Item

Manufacturer



132 kV GIS:



Surge arresters


Circuit breaker operating mech. motors

Disconnector/earth switch drive motors



SCHEDULE C3 – 132 KV GAS INSULATED SWITCHGEAR - Cont

Item

Manufacturer



SF6 Gas handling plant

SF6 Gas

Partial discharge capacitive couplers

Local control cubicles

GIS Switchroom Crane


SCHEDULE C4 – 132 KV AIS OUTDOOR SWITCHGEAR

Item

Manufacturer



132 kV AIS Current transformers

132 kV AIS Voltage transformers

132 kV AIS Surge arresters

132 kV AIS Disconnector/earth switches

Steel Structures

Conductor

Support insulators

Connectors



SCHEDULE C5 – 11 KV METALCLAD SWITCHGEAR

Item

Manufacturer



Metalclad enclosures

Circuit breakers


Interrupters



Earthing switches

Low voltage equipment


SCHEDULE C6 - TRANSFORMERS REACTORS AND AUXILIARY PLANT

Item

No

Description

Manufacturer


Place of testing and inspection

1 400/132 kV Transformer

2 Transformer Tap Changer

3 400 kV Shunt Reactor

4 11/0.4 kV Auxiliary Transformer

5 Earthing Transformer

6 11 kV Tertiary Capacitor Bank

7 Series Reactor for Capacitor Bank

8 11 kV Tertiary Reactor



SCHEDULE C7 - LV SERVICES EQUIPMENT

Item

Manufacturer



LVAC Equipment

DC Equipment

Batteries

UPS Equipment

Standby Diesel Generator


SCHEDULE C8 - CABLES

Item

Manufacturer



132 kV power cable

11 kV power cable

LV multicore / multipair cable

Cable glands

Cable trays

Cable ladder racks




SCHEDULE C9 - SUBSTATION CONTROL AND PROTECTION SYSTEMS`

Item

Manufacturer



SCS Substation Computer

SCS Operator Workstations / HMI

Operator Desk and Chair

SCS Colour Visual Display Units

SCS Substation LAN

SCS Printers

SCS Bay Control Unit BCU

SCS I/O Cards for BCU

SCS Software Engineering

SCS Database Engineering

Protection Relays



SCHEDULE D

TECHNICAL PARTICULARS

D1.1 400kV GIS SUBSTATION – VOLUME 3

SCHEDULE D – TECHNICAL PARTICULARS

SCHEDULE D1 – 400 KV GAS INSULATED SWITCHGEAR

Unit Data Required Offered 1 GENERAL

1.1 Manufacturer & Place of manufacturing

1.2 Type designation

GIS

1.3 Type

Metal enclosed, gas insulated GIS- indoor

1.4 Standards

IEC IEC 62271 - 203, 60694, 60270, 60376, 60480

1.5 Rated voltage

kV 420

1.6 System Voltage

kV 400

1.7 Rated frequency

Hz 50

1.8 Rated lightning impulse withstand voltage

- Phase to earth KVp 1425 - Across the isolating distance kVp 1665 1.9 Rated power frequency withstand voltage

- Phase to earth kV 650 - Across the isolating distance kV 815 - Phase to earth at SF6 pressure of 1 bar kV 1.1 U phase 1.10 Rated short-time withstand current (1 s)

kA 40

1.11 Rated peak withstand current

kA 100

1.12 Type of busbars

Breaker and Half

1.13 Type of enclosure

Single phase enclosures

1.14 Material of enclosure for:

- Circuit breaker Al/St - Busbars Al/St - Other compartments Al/St 1.15 Material of HV conductor

Al/Cu

1.16 Material of contacts (indicate bi-metallic where used)

1.17 Type of contact

Tulip


SCHEDULE D – TECHNICAL PARTICULARS – CONT

SCHEDULE D1 – 400 KV GAS INSULATED SWITCHGEAR - Cont

Unit Data Required Offered 1.18 Minimum subdivision of switchgear:

- Busbars Yes - Busbar disconnect Yes - Circuit breaker Yes - Circuit disconnect Yes - Cable box Yes - Voltage transformer Yes 1.19 Method of compensation of expansion and

contraction

- For busbars - For enclosure 1.20 Type of pressure relief device

Bursting disk

1.21 Rupturing pressure

bar

1.22 Type of filter employed for moisture absorption

Molecular Sieve

1.23 Design lifetime of moisture absorbent

Years 10

1.24 Total mass of switchgear (average per bay)

kg

1.25 Mass of heaviest single component to be handled during erection

kg

1.26 Total mass of SF6 gas (average per bay)

kg

1.27 Density of gas in:

- Circuit breaker compartment (g/l) - Other than circuit breaker compartments (g/l) 1.28 Nominal working gas pressure at 15oC in:

- Circuit breaker compartment bar - Other than circuit breaker compartment bar 1.29 Nominal working gas pressure at 50oC in:

- Circuit breaker compartment bar - Other than circuit breaker compartment bar 1.30 Design maximum pressure for:

- Circuit breaker compartment bar - Other than circuit breaker compartment bar 1.31 Maximum leakage rate for any gas compartment

per

annum Less than 1%




Unit Data Required Offered 1.32 Maximum leakage rate for the whole switchgear

per

annum Less than 1%

1.33 Minimum operating period without total replacement of SF6 gas

years 10

1.34 Minimum thickness of enclosure

mm

1.35 Minimum enclosure puncturing time due to internal arc fault at short-time withstand current

ms Greater than 500

1.36 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 crippling loads of compression members

2.5

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

2.5

1.37 Seismic factor

UBC Zone 3

2 CIRCUIT BREAKER



2.3 Type

Single pressure puffer, SF6

2.4 Standards

IEC 62271 - 203, IEC 62271-100, 61233, 60694, 60427, 60376,

60480

2.5 Rated voltage kV 420

2.6 Rated Current at 50 0C

(Contractor to confirm by calculation) - Main busbar

A

4000

- Bay busbar A 2000 - Line transformer Circuit

A 1600




Unit Data Required Offered 2.7 Rated frequency

Hz 50


- Phase to earth kVp 1425 - Across the isolating distance kVp 1665 2.9 Rated power frequency withstand voltage

- Phase to earth kV 650 - Across the isolating distance kV 815 2.10 Rated short-time withstand current (1 s)

kA 40


kAp 100

2.12 Rated operating sequence

O -0.3 sec- CO -3 min - CO

2.13 Auto reclosing


2.14 Rated making current

kAp 100

2.16 Rated breaking current (asymmetrical)

kA To IEC 62271-100

- %dc

%dc

2.17 Rated breaking current under out-of-phase conditions

kA

2.18 First phase to clear factor

1.3

2.18a Transient Recovery Voltages

TRVs To IEC 62271-100

Rated capacitive breaking current To IEC 62271-

100

Rated line charging breaking current A Rated cable charging breaking current A

2.19

Rated Single/Back to Back Capacitor bank breaking current

A




Unit Data Required Offered 2.20 Rated small inductive/reactor breaking currents of:

To IEC 62771-

110

- small inductive A - reactor A 2.21 Maximum overvoltage factor on any switching duty

pu 2.5

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

pu 2.5

2.23 Maximum overvoltage factor when switching small inductive/reactor currents

pu 2.5

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

ms 60

2.25 Opening time (trip initiation to contact separation)

- Without current ms - With 100% rated breaking current

ms

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

ms 3

2.27 Maximum time interval between opening of interrupters of one phase

ms

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

ms

2.29 Making time (energisation of close coil to contact touch)

- Without current ms - 100% making current ms 2.30 Maximum time interval between closure of first

and last phase of three phase circuit breaker

ms 3

2.31 Maximum time interval between closure of interrupters of one phase

ms

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

ms

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

10,000




Unit Data Required Offered 2.34 Electrical contact life in number of operations at:

- Rated current - 2000 A - Fault current - 40 kA 15 to 20 - Cumulative ampere rating 2.35 Number of current interrupting break units in

series per phase

two

2.36 Type of operating mechanism

Spring-charged or hydraulic

2.37 Type of power device (motor charged)

- For closing Spring or hydraulic

- For opening

Spring or hydraulic

2.38 Hand operating facility

yes

2.39 Hand charging facility

yes

2.40 Manual spring release

yes

2.41 Mechanical on/off indicator

yes

2.42 Mechanical spring charge / discharge indication

yes

2.43 Charging time

s

2.44 Number of trip coils

2

2.45 Number of close coils

1

2.46 Nominal control and operating voltage

V 110 DC

2.47 Nominal heater voltage

V 220 AC

2.48 Rated power of trip coil

W

2.49 Rated power of close coil

W

2.50 Rated motor power

W

2.51 Total load of heaters for circuit breaker

W

2.52 Mass of circuit breaker complete (three pole)

kg

2.53 Mass of single phase circuit breaker

- - -

2.54 Emergency Trip Facility during failure of DC supply

yes




Unit Data Required Offered 3 DISCONNECTS

3.1 Manufacturer & Place of Manufacturing



Motor

3.4 Standards

IEC 62271-102, IEC 60694,

61128, 62271 - 203, 60265

3.5 Rated voltage

kV 420

Rated current at 50oC (Contractor to confirm by calculation)

Bay selectors A 2000

3.6

Circuit disconnector A 1600

3.7. Rated frequency

Hz 50

3.8. Rated lightning impulse withstand voltage

- Phase to earth kVp 1425 - Across the isolating distance kVp 1665 3.9. Rated power frequency withstand voltage

- Phase to earth kV 650 - Across the isolating distance kV 815 3.10 Rated short time withstand current (1 s)

kA 40


kAp 100

3 .12 Maximum capacitive current that can be interrupted by the isolator

A

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

s

3.14 Time from contact separation to extinct of capacitive arc

s

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

s

3.16 Hand operating facility yes




Unit Data Required Offered 3.17 Locking arrangement in on/off position

yes


V 110 DC

3.19 Automatic isolation of control supplies when lock off

yes

3.20 Accessibility to operating mechanism from ground level or catwalk

yes


V 220 AC

3.22 Rated power of operation coil

W


W

3.24 Total load of heaters for isolator

W

3.25 Total mass of three phase isolator complete

kg

3.26 Mass of single phase isolator

kg

3.27 Contact type

Tulip

4 EARTHING SWITCH

4.1 Manufacturer & place of manufacturing



Motor

4.4 Standards

IEC 62271-102, IEC 60694, 62271 - 203

4.5 Rated voltage

kV 420

4.6 Rated frequency

Hz 50

4.7 Rated lightning impulse withstand voltage phase to earth

kVp 1425

4.8 Rated power frequency withstand voltage phase to earth

kV 650

4.9 Rated short time withstand current (1 s) kA 40 4.10 Rated peak withstand current

kAp 100


yes




Unit Data Required Offered 4.12 Locking arrangement in on/off position

yes


V 110 DC


yes


yes


V 220 AC

4.17 Rated power of operating coil

W


W

4.19 Total load of heaters for earthing switch

W

4.20 Total mass of earthing switch complete

kg

5 HIGH SPEED EARTHING SWITCH




Motor-spring

5.4 Standards

IEC 62271-102, IEC 60694,

61129, 62271 - 203

5.5 Rated voltage

kV 420

5.6 Rated frequency

Hz 50


kVp 1425


kV 650

5.9 Rated short time withstand current (1 s)

kA 40


kAp 100

5.11 Rated short-circuit making current

kAp 100

5.12 Rated capacitive symmetrical breaking current

A

5.13 Rated inductive symmetrical breaking current A




Unit Data Required Offered 5.14 Total time from initiation of opening operation to

earth switch in fully open position

ms

5.15 Time from contact separation to extinction of arc when interrupting rated breaking current

ms

5.16 Making time

ms

5.17 Charging time

s


yes

5.19 Locking arrangement in on/off position

yes


V d.c. 110


yes


yes


V 220 AC


W


W


W


kg

6 CURRENT TRANSFORMER


6.2 Type

Toroidal, GIS enclosed or

external

6.3 Standards

IEC 60694, 60044-1

6.4 Rated voltage GIS kV 420 Cores V 6.5 Rated lightning impulse withstand voltage phase

to earth

GIS kVp 1425 Cores kVp




Unit Data Required Offered 6.6 Rated power frequency withstand voltage phase

to earth

GIS kV 650 Cores kV 3 kV (EK < 2 kV) kV 5 kV (EK ≥ 2 kV) 6.7 Rated power frequency voltage between

secondaries

kV 3

6.8 Inter-turn test M/P type kVp 4.5 Class PX To IEC 60044-1 6.9 Rated frequency

Hz 50

6.10 Rated continuous thermal current at 50oC

A

6.11 Rated short-time withstand current (1 s)

kA 40

6.12 Rated dynamic current

kAp 100

6.13 Are earthed metal screens fitted between primary and secondary windings

6.14 Is current transformer housed in a separate gas compartment

6.15 Details of all current transformers are to be provided by the Contractor post contract award

- Number of cores - Rated extended primary current - Ratio (TR = turns ratio)

• I core A • II core A • III core A • IV core

A

- Class

7 VOLTAGE TRANSFORMERS


7.2 Type designation for

- Line transformer – 3 phase

- Busbar transformer – 3 phase




Unit Data Required Offered 7.3 Type

Inductive, SF6

gas insulated, enclosed

7.4 Standards

IEC 60186,60694, 62271 - 203,

60044-2

7.5 Rated voltage

kV 420

7.6 Rated frequency

Hz 50

7.7 Rated lightning impulse phase to earth

KVp 1425


kV 650

7.9 Maximum permissible partial discharge level Um

pC 10

7.10 Maximum permissible partial discharge level 1.2Um /√3

pC 5

7.11 Maximum capacitive current discharge rating

A

7.12 Method of suppressing ferroresonance phenomena

7.13 Line bay voltage transformer

- Number of secondaries - Rated transformation ratio kV - Rated accuracy class

• I secondary • II secondary

- Rated output

• I secondary VA • II secondary

VA

- Mass of single/three phase voltage transformer

kg

7.14 Busbar voltage transformer


• I secondary




Unit Data Required Offered - Rated output (Burden to be 25-100% rated

burden)

VA

• I secondary


kg

8 SURGE ARRESTERS

8.1 Type

8.2

Standard IEC 60099-4, 60099-1 60099-5,

60694

8.3 Rated/system voltage

kV

420/400

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

pu 2.5

8.4 Rated system frequency

Hz 50

8.5 Condition of system neutral

Solid

8.6 Nominal Discharge current

kA crest

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

8.8 Rated voltage - MOA

kV

8.9 Long duration discharge class as per IEC 60099-4

Class 3

8.10 Maximum Continuous Operating Voltage (COV)

kV

8.11 TOV capability for

- 1 sec kV - 10 sec kV 8.12 Maximum residual voltage with current wave

- Switching Surges - 1kA / 2kA kV - 8/20 μs - 5kA kV - 8/20 μs - 10kA kV

8.14 Discharge current withstand strength

- High current (4/10 μs) kAp - Low current 2000A Ap




Unit Data Required Offered 8.15 Pressure relief capability

- High current (0.2 s) kA - Low current

8.16 Rating of earth connections

kA/sec 40/1

8.17 Surge counter provided

Yes

9 CABLE BOX (WHEN APPLICABLE).


9.2 Type of designation

9.3 Standards

IEC 60859

9.4 Cable HV test withstand capability

kV

9.5 Rated normal current at 40oC

A

9.6 Required current at 50oC (Contractor to confirm by calculation)

A

9.7 Rated short time withstand current (1s)

kA 40


kA 100

9.9 Total mass of three phase cable box complete

kg

10 MANUFACTURER QUALITY SYSTEM IN ACCORDANCE TO ISO 9000, 9001, 9002, 9003 AND 9004

Yes

10.1 Date of issue

Latest

10.2 Validity

Valid Certificates –Yes

11 TYPE TEST CERTIFICATE TO BE ISSUED BY INDEPENDENT LABORATORY OR INDEPENDENTLY WITNESSED TYPE TEST CERTIFICATE TO BE SUBMITTED

Yes



SCHEDULE D2 – 400 KV OPEN TERMINAL SWITCHGEAR


1.1 Standards

IEC IEC 62271-100, 62271-102, 60694,

60233, 60044, 60186, 60383,

60815

1.2 Rated voltage

kV 420

1.3 System Voltage

kV 400

1.4 Rated frequency

Hz 50


Phase to earth kVp 1425 Across the isolating distance kVp 1665 1.6 Rated power frequency withstand voltage Phase to earth kV 520 Across the isolating distance kV 610 1.7 Rated short-time withstand current (1 s)

kA 40


kA 100

1.9 Rated Current – Cable Feeder at 50 oC (Contractor to confirm by calculation) A 1.10 Material of HV conductor

Aluminium

1.11 Material of contacts

Bi-metallic


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 crippling loads of compression members

2.5

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

2.5



SCHEDULE D2 – 400 KV OPEN TERMINAL SWITCHGEAR - Cont

Unit Data Required Offered 1.13 Creepage distance (based on Um)

mm/kV 31

1.14 Seismic factor

As UBC

2 ISOLATORS



Motor

2.3 Standards

IEC 62271-102, IEC 60694, 61128,

60265

2.4 Maximum capacitive current that can be interrupted by the isolator

A


s


s

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

s


Yes


Yes


V 110 DC


Yes

2.12 Accessibility to operating mechanism from ground level

Yes


V 220 AC


W


W


W


kg


kg

2.19 Contact type

2.20 Type of interlocking




Unit Data Required Offered 3 EARTHING SWITCH



Hand

3.3 Standards

IEC 62271-102, 60694


Yes


Yes


V 110 DC


Yes

3.8 Accessibility to operating mechanism from ground level

Yes


V 220 AC


W


kg




Unit Data Required Offered 4 CURRENT TRANSFORMER

4.1 Type

Post

4.2 Standards

IEC 60694, 60044-1


Rated extended primary current

Note: All Cl PX CTs shall be ISN 1.2 A

4.4 Cable feeder bays current transformer

To suit specific requirements

Number of cores


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 IV core

VA




Unit Data Required Offered Total mass of single phase current

transformer complete

kg

4.5 Bus coupler and bus section bays current transformer

To suit specific arrangement

Number of cores

120%

5 CAPACITIVE VOLTAGE TRANSFORMERS

5.1 Type

Capacitive

5.2 Standards IEC 60186, IEC/PAS 60044-

5:2002


pC 10


pC 5


5.5 Line voltage transformer

5.7 Number of secondaries

2

Rated transformation ratio kV 132/√3 / 0.11/√3 /0.11/√3

Rated accuracy class

I secondary 3P/1.0 II secondary

3P


I secondary VA II secondary

VA

Mass of single phase voltage transformer

kg




Unit Data Required Offered 6 SURGE ARRESTERS

6.1 Type

6.2 Standard IEC 60099-4, 60099-1 60099-5,

60694


kV

145/132

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

pu 2.5


Hz 50


Solid


kA crest



kV


Class


kV


1 sec kV 10 sec

kV

6.14 Switching Surges - 1kA / 2kA kV 8/20 μs - 5kA kV 8/20 μs - 10kA kV 6.15 Discharge current withstand strength kAp High current (4/10 μs) Ap Low current 2000A

6.16 Pressure relief capability kA High current (0.2 s) Low current

kA/sec As per IEC


40/1


Yes




Unit Data Required Offered 7 BUSBARS AND CONNECTIONS

7.1 Type (flexible or tubular)

7.2 Material

7.3 Short-circuit current rating / duration

kA/s

7.4 Normal current rating at 40oC at 50oC

A A

7.5 Maximum continuous current rating

A

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

mm2

mm

mm

7.7 Tubular conductors nominal cross-sectional area outer diameter inner diameter

mm2

mm

mm

7.8 Maximum stress at surface of flexible conductor

kV/mm

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

µV




Unit Data Required Offered 8 POST TYPE INSULATORS


8.2 Insulator material

8.3 Number of units in complete post insulator

8.4 Length of each unit

mm

8.5 Mass of complete post insulator

kg

8.6 Maximum cantilever working load (complete post insulator)

N

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

N

8.8 Power frequency withstand voltage dry: wet

kV

8.9 Basic insulation level

kVp

8.10 Minimum dry/wet switching surge withstand level

kVp


µv




Unit Data Required Offered 9 TENSION AND SUSPENSION

INSULATORS



9.3 Number of units in string

mm

9.4 Greatest diameter of units

mm

9.5 Distance between centres of units

mm

9.6 Length of string, overall

mm

9.7 Mass of string complete with all fittings

kg

9.8 Maximum working load

N

9.9 Power frequency withstand voltage of complete string

kV

9.10 Basic insulation level of complete string

kVp

9.11 Minimum wet switching surge withstand level of complete string

kVp

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

µv



SCHEDULE D2 – 400 KV OPEN TERMINAL SWITCHGEAR – Cont

Unit Data Required Offered 10 400 KV LINE TRAPS

10.1 Maker's type and designation

10.2 Main coil insulation – class

10.3 Rated continuous current

A

10.4 Rated short time current (1 second/3 seconds)

kA

10.5 Power frequency

10.6 Insulating level across line traps at:

10.6.1 Power frequency

10.6.2 Impulse

10.7 Rated voltage level of protective device

kV

10.8 Centre frequency

kHz

10.9 Bank width of blocking range

kHz

10.10 Self resonant frequency

kHz

10.11 Tapping loss

db

10.12 Blocking impedance

Ω

10.13 Total mass

kg



SCHEDULE D3 – 132 KV GAS INSULATED SWITCHGEAR




GIS

1.3 Type

Metal enclosed, gas insulated GIS-

indoor

1.4 Standards

IEC IEC 62271 - 203, 60694, 60270, 60376, 60480

1.5 Rated voltage

kV 145

1.6 System Voltage

kV 132

1.7 Rated frequency

Hz 50



- Phase to earth kV 275 - Across the isolating distance kV 315 - Phase to earth at SF6 pressure of 1 bar kV 1.1 U phase 1.10 Rated short-time withstand current (1 s)

kA 40


kA 80

1.12 Type of busbars

Double

1.13 Type of enclosure

Single/Three phase enclosed

1.14 Material of enclosure for:

- Circuit breaker Al/St - Busbars Al/St - Other compartments Al/St 1.15 Material of HV conductor

Al/Cu

1.16 Material of contacts (indicate bi-metallic where used)


SCHEDULE D – TECHNICAL PARTICULARS - CONT


Unit Data Required Offered 1.17 Type of contact Tulip 1.18 Minimum subdivision of switchgear:

- Busbars - Busbar isolator - Circuit breaker Yes - Circuit isolator - Cable box - Voltage transformer Yes 1.19 Method of compensation of expansion and

contraction

- For busbars - For enclosure 1.20 Type of pressure relief device

Bursting disk

1.21 Rupturing pressure

bar

1.22 Type of filter employed for moisture absorption

Molecular Sieve

1.23 Design lifetime of moisture absorbent

Years 10

1.24 Total mass of switchgear (average per bay)

kg

1.25 Mass of heaviest single component to be handled during erection

kg

1.26 Total mass of SF6 gas (average per bay)

kg

1.27 Density of gas in:

- Circuit breaker compartment (g/l) - Other than circuit breaker compartments (g/l) 1.28 Nominal working gas pressure at 15oC in:

- Circuit breaker compartment bar - Other than circuit breaker compartment bar 1.29 Nominal working gas pressure at 50oC in:

- Circuit breaker compartment bar - Other than circuit breaker compartment bar 1.30 Design maximum pressure for:

- Circuit breaker compartment bar - Other than circuit breaker compartment bar




Unit Data Required Offered 1.31 Maximum leakage rate for any gas compartment

per

annum Less than 1%

1.32 Maximum leakage rate for the whole switchgear

per

annum Less than 1%

1.33 Minimum operating period without total replacement of SF6 gas

years 10

1.34 Minimum thickness of enclosure

mm

1.35 Minimum enclosure puncturing time due to internal arc fault at short-time withstand current

ms Greater than 500


- 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 crippling loads of compression members

2.5

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

2.5

1.37 Seismic factor

2 CIRCUIT BREAKER



2.3 Type

Single pressure puffer, SF6

2.4 Standards

IEC 62271 - 203, IEC 62271-100, 61233, 60694, 60427, 60376,

60480

2.5 Rated voltage kV 132

2.6a Rated Current – Busbars, Bus Section and Bus Coupler

- at 50 0C (Contractor to confirm by calculation) A 3150




Unit Data Required Offered 2.6b Rated Current – Transformer/Transformer Feeder

- at 50 0C (Contractor to confirm by calculation)

A 1600

2.6c Rated Current – Incoming Feeder

- at 50 0C (Contractor to confirm by calculation)

A 1600

2.7 Rated frequency

Hz 50



- Phase to earth kV 275 - Across the isolating distance kV 315 2.10 Rated short-time withstand current (1 s)

kA 40


kAp 80



2.13 Auto reclosing



kAp 80


kA To IEC 62271-100

- %dc

%dc

2.17 Rated breaking current under out-of-phase conditions

kA

2.18 First phase to clear factor

1.3

2.18a Transient Recovery Voltages

TRVs To IEC 62271-100

Rated capacitive breaking current To IEC 62271-100 Rated line charging breaking current A Rated cable charging breaking current A

2.19

Rated Single/Back to Back Capacitor bank breaking current

A




Unit Data Required Offered 2.20 Rated small inductive/reactor breaking currents of:

To IEC 62771-110

- small inductive A - reactor A 2.21 Maximum overvoltage factor on any switching duty

pu 2.5

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

pu 2.5

2.23 Maximum overvoltage factor when switching small inductive/reactor currents

pu 2.5

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

ms 60


- Without current ms - With 100% rated breaking current

ms

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

ms 3

2.27 Maximum time interval between opening of interrupters of one phase

- - -


ms


- Without current ms - 100% making current ms 2.30 Maximum time interval between closure of first

and last phase of three phase circuit breaker

ms 3

2.31 Maximum time interval between closure of interrupters of one phase

- - -

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

ms 300

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

10,000




Unit Data Required Offered 2.34 Electrical contact life in number of operations at:

- Rated current - 3150A/1600A - Fault current - 40 kA 15 to 20 - Cumulative ampere rating 2.35 Number of current interrupting break units in

series per phase

one


Spring-charged or hydraulic

2.37 Type of power device (motor changed)

- For closing Spring or hydraulic

- For opening

Spring or hydraulic


yes

2.39 Hand charging facility

yes

2.40 Manual spring release

yes

2.41 Mechanical on/off indicator

yes

2.42 Mechanical spring charge / discharge indication

yes

2.43 Charging time

s


2


1


V 110 DC


V 220 AC


W


W


W


W

2.52 Mass of circuit breaker complete (three pole)

kg

2.53 Mass of single phase circuit breaker

- - -




Unit Data Required Offered 2.54 Emergency Trip Facility during failure of DC

supply

yes

3 DISCONNECTS




Motor

3.4 Standards

IEC 62271-102, IEC 60694,

61128, 62271 - 203, 60265

3.5 Rated voltage

kV 145

Rated current at 50oC (Contractor to confirm by calculation)

- Busbars, Bus Section and Bus Coupler A 3150

3.6

- Circuits

A 1600

3.7 Rated frequency

Hz 50



- Phase to earth kV 275 - Across the isolating distance kV 315 3.10 Rated short time withstand current (1 s)

kA 40


kAp 80

3 .12 Maximum capacitive current that can be interrupted by the isolator

A


s


s




Unit Data Required Offered 3.15 Total time from initiation of opening operation to

time when isolator gap can withstand phase voltage

s


yes


yes


V 110 DC


yes


yes


V 220 AC


W


W


W


kg


kg

3.27 Contact type

Tulip

4 EARTHING SWITCH




Motor

4.4 Standards

IEC 62271-102, IEC 60694, 62271

- 203

4.5 Rated voltage

kV 145

4.6 Rated frequency

Hz 50


kVp 650


kV 275




Unit Data Required Offered 4.9 Rated short time withstand current (1 s)

kA 40


kA 80


yes


yes


V 110 DC


yes


yes


V 220 AC

4.17 Rated power of operating coil

W


W


W


kg

5 HIGH SPEED EARTHING SWITCH




Motor-spring

5.4 Standards

IEC 62271-102, IEC 60694,

61129, 62271 - 203

5.5 Rated voltage

kV 145

5.6 Rated frequency

Hz 50


kVp 650


kV 275




Unit Data Required Offered 5.9 Rated short time withstand current (1 s)

kA 40


kAp 80

5.11 Rated short-circuit making current

kAp 80

5.12 Rated capacitive symmetrical breaking current

A

5.13 Rated inductive symmetrical breaking current

A

5.14 Total time from initiation of opening operation to earth switch in fully open position

ms

5.15 Time from contact separation to extinction of arc when interrupting rated breaking current

ms

5.16 Making time

ms

5.17 Charging time

s


yes


yes


V d.c. 110


yes


yes


V 220 AC


W


W


W


kg

6 CURRENT TRANSFORMER


6.2 Type

Toroidal, GIS enclosed

6.3 Standards IEC 60694, 60044-1




Unit Data Required Offered 6.4 Rated voltage

GIS kV 145 Cores V 720 6.5 Rated lightning impulse withstand voltage phase

to earth

GIS kVp 650 Cores kVp 6.6 Rated power frequency withstand voltage phase

to earth

GIS kV 275 Cores kV 3 kV (EK < 2 kV) kV 5 kV (EK ≥ 2 kV) 6.7 Rated power frequency between secondaries 3 kV

6.8 Inter-turn test

M/P type 4.5 kV peak Class PX

To IEC 60044-1

6.9 Rated frequency

Hz 50




kA 40


kAp 80


6.14 Is current transformer housed in a separate gas compartment

6.15 Transformer bays current transformer:

To suit specific

- Number of cores arrangement - Rated extended primary current - Ratio (TR = turns ratio)

• I core A • II core A • III core A • IV core A • V core A



SCHEDULE D3 – 132 KV GAS INSULATED SWITCHGEAR – Cont

Unit Data Required Offered - Class

• I core • II core • III core • IV core • V core

- Knee point voltage (Ek)

• I core V • II core V • III core V • IV core V • V core

V

- Exciting current (IE ) at Ek

• I core mA • II core mA • III core mA • IV core mA • V core

mA

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

• I core VA • II core VA • III core VA • IV core VA • V core VA 6.16 Line bays current transformer

To suit specific

- Number of cores arrangement - Rated extended primary current - Ratio (TR = turns ratio) - Knee point voltage (Ek) 6.17 Bus Section & Bus Coupler CT No.1

To suit specific

- Number of cores arrangement - Rated extended primary current - Ratio (TR = turns ratio) 6.18 Bus Section & Bus Coupler CT No. 2 (at the other

side of circuit breaker)

To suit specific

- Number of cores arrangement




Unit Data Required Offered - Rated extended primary current - Ratio (TR = turns ratio) 7 VOLTAGE TRANSFORMERS



- Line transformer – 3 phase - Busbar transformer – 3 phase

7.3 Type

Inductive, SF6 gas insulated, enclosed

7.4 Standards

IEC 60186,60694, 62271 - 203,

60044-2

7.5 Rated voltage

kV 145

7.6 Rated frequency

Hz 50


kVp 650


kV 275


pC 10


pC 5

7.11 Maximum capacitive current discharge rating

A TBA


7.13 Line bay voltage transformer


• I secondary • II secondary

- Rated output

• I secondary VA • II secondary VA




Unit Data Required Offered - Mass of single/three phase voltage

transformer kg

7.14 Busbar voltage transformer


• I secondary

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

VA

• I secondary


kg

8 SURGE ARRESTERS

8.1 Type

8.2

Standard IEC 60099-4, 60099-1 60099-5,

60694


kV

145/132

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

pu 2.5


Hz 50


Solid


kA crest



kV


Class


kV


- 1 sec kV - 10 sec kV




Unit Data Required Offered 8.12 Maximum residual voltage with current wave

- Switching Surges - 1kA / 2kA kV - 8/20 μs - 5kA kV - 8/20 μs - 10kA kV 8.14 Discharge current withstand strength

- High current (4/10 μs) KAp - Low current 2000A

Ap

8.15 Pressure relief capability

- High current (0.2 s) kA - Low current As per IEC


kA/sec 40/1


Yes

9 CABLE BOX



9.3 Standards

IEC 60859

9.4 Rated voltage

kV 145


kVp 650


kV 275

9.7 Cable HV test withstand capability

kV

9.8 Rated frequency

Hz 50

9.9 Rated normal current at 40oC

A

9.10 Required current at 50oC (Contractor to confirm by calculation)

A

9.11 Rated short time withstand current (1s)

kA 40


kA 80

9.13 Total mass of three phase cable box complete

kg




Unit Data Required Offered 10 MANUFACTURER QUALITY SYSTEM IN

ACCORDANCE TO ISO 9000, 9001, 9002, 9003 AND 9004

Yes

10.1 Date of issue

Latest

10.2 Validity

Valid Certificates –Yes

11 TYPE TEST CERTIFICATE TO BE ISSUED BY INDEPENDENT LABORATORY OR INDEPENDENTLY WITNESSED TYPE TEST CERTIFICATE TO BE SUBMITTED

Yes



SCHEDULE D4 – 132 KV OPEN TERMINAL SWITCHGEAR


1.1 Standards

IEC IEC 62271-100, 62271-102, 60694,

60233, 60044, 60186, 60383,

60815

1.2 Rated voltage

kV 145

1.3 System Voltage

kV 132

1.4 Rated frequency

Hz 50


Phase to earth kVp 650 Across the isolating distance kVp 750 1.6 Rated power frequency withstand voltage

Phase to earth kV 275 Across the isolating distance kV 315 1.7 Rated short-time withstand current (1 s)

kA 40


kA 62.5

1.9 Rated Current – Cable Feeder at 50 oC (Contractor to confirm by calculation) A 1600 (or to suit) 1.10 Material of HV conductor

Aluminium


Bi-metallic


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 crippling loads of compression members

2.5

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

2.5




Unit Data Required Offered 1.13 Creepage distance (based on Um)

mm/ kV 31

1.14 Seismic factor

UBC Zone 3




Unit Data Required Offered 2 CAPACITIVE VOLTAGE TRANSFORMERS

2.1 Type

Capacitive

2.2 Standards

IEC 60186, IEC/PAS 60044-

5:2002


pC 10


pC 5


2.6 Line voltage transformer

2.7 Number of secondaries

2

Rated transformation ratio kV 132/√3 / 0.11/√3 /0.11/√3

Rated accuracy class

I secondary 3P/1.0 II secondary

3P


I secondary VA II secondary

VA

Mass of single phase voltage transformer

kg




Unit Data Required Offered 3 BUSBARS AND CONNECTIONS

3.1 Type (flexible or tubular)

3.2 Material

3.3 Short-circuit current rating / duration

kA/s 40/1

3.4 Normal current rating at 40oC

A

at 50 oC

A 1600

3.5 Maximum continuous current rating

A

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

mm2

mm

mm

3.7 Tubular conductors nominal cross-sectional area outer diameter inner diameter

mm2

mm

mm

3.8 Maximum stress at surface of flexible conductor

kV/mm


µV




Unit Data Required Offered 4 POST TYPE INSULATORS



4.3 Number of units in complete post insulator

4.4 Length of each unit

mm

4.5 Mass of complete post insulator

kg

4.6 Maximum cantilever working load (complete post insulator)

N

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

N

4.8 Power frequency withstand voltage dry: wet

kV

4.9 Basic insulation level

kVp

4.10 Minimum dry/wet switching surge withstand level

kVp


µv




Unit Data Required Offered 5 TENSION AND SUSPENSION

INSULATORS



5.3 Number of units in string

mm

5.4 Greatest diameter of units

mm

5.5 Distance between centres of units

mm

5.6 Length of string, overall

mm

5.7 Mass of string complete with all fittings

kg

5.8 Maximum working load

N

5.9 Power frequency withstand voltage of complete string

kV

5.10 Basic insulation level of complete string

kVp

5.11 Minimum wet switching surge withstand level of complete string

kVp

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

µv




Unit Data Required Offered 6 LINE TRAPS

6.1 Maker's type and designation

6.2 Main coil insulation – class

6.3 Read continuous current

A

6.4 Rated short time current (1 second/3 seconds) kA

6.5 Inductance at 50 Hz

mH

6.6 Insulating level across line traps at:

6.7 Power frequency

6.8 Impulse

6.9 Rated voltage level of protective device

kV

6.10 Centre frequency

kHz

6.11 Bank width of blocking range

kHz

6.12 Self resonant frequency

kHz

6.13 Tapping loss

db

6.14 Blocking impedance

Ω

6.15 Total mass

kg



SCHEDULE D5 - 11 KV (TERTIARY) METALCLAD SWITCHGEAR




1.3 Type of Switchgear

Metal clad - air insulated, indoor switchgear with Vacuum Circuit

Breaker

1.4 Standards

IEC 60298, 62271-100,

60694, 60529

1.5 Number of years equipment of identical design has been in service

Years

1.6 Rated voltage

kV 12

1.7 Rated normal current

At 50oC (contractor to confirm by calculation) − Incoming bay, busbar & bus-section bay A 4000 − Outgoing bay A 1600/600 to suit 1.8 Rated frequency

Hz 50


− Phase to earth kV 95

− Across the isolating distance KV 110 1.10 Rated power frequency withstand voltage

− Phase to earth KV 38 − Across the isolating distance KV 45 1.11 Partial discharge test voltage

KV IEC 60270

1.12 Rated short-time withstand current (1s)

KA 50


KA 125



SCHEDULE D5 - 11 KV (TERTIARY) METALCLAD SWITCHGEAR - Cont

Unit Data Required Offered 1.14 Type of busbars

Single

1.15 Method of earthing

− Busbars side − Line side 1.16 Minimum subdivision of cubicles at compartments

Busbar/ CTs/

Circuit Breaker/ Cable/ VTs/Relay

compartment

1.17 Are busbars segregated

− Between phases Yes − Between cubicles Yes 1.18 Material of cover

Metallic

1.19 Material of partitions

Metallic

1.20 Material of shutters

Metallic/Earthed

1.21 Busbars and joints fully encapsulated

Yes

1.22 Busbar and feeder shutters lockable with individual manual and automatic features

Yes

1.23 Protection class

− General IP41 − Busbars, cable compartment, internal partitions IP3XD − Circuit breaker compartment

• Door closed • Door open

IP41 IPXX

− LV compartment IP41 − Shutters and spouts

− Pressure relief device/flaps IP4X

IP 5X

1.24 The way of securing (opening/closing of doors)

Hinged doors

1.25 Material of HV conductor

Copper


Silver-plated copper

1.27 Type of pressure relief device

1.28 Method of personnel protection in case of operation of pressure relief device




Unit Data Required Offered 1.29 Total mass of switchgear (average per bay)

kg

1.30 Minimum factors of safety for switchgear (minimum 2.5)

− Busbars or other connection 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 crippling loads of compression members

2.5

− Foundations for structures against overturning or uprooting under maximum simultaneous working loading

2.5

1.31 Manufacturer quality assurance according to ISO 9000, 9001, 9002, 9003 and 9004

Yes

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

Yes

1.33 Emergency manual trip facility (during failure of DC supply)

Yes

2 CIRCUIT BREAKER



2.3 Type

Vacuum, Truck mounted,

withdrawable

2.4 Fully encapsulated

Yes

2.5 Standards

IEC 60298, 62271-100,

60694, 60427

2.6 Rated voltage

kV 12

2.7 Rated normal current at 40oC (Incomer/bus section; Feeder)

A

2.8 Required current at 50oC (Incomer/bus section; Feeder) (Contractor to confirm by calculation)

A 4000/1600/630




Unit Data Required Offered 2.9 Rated frequency

Hz 50


− Phase to earth kVp 95 − Across the isolating distance

kVp 110

2.11 Rated power frequency withstand voltage

− Phase to earth kV 38 − Across the isolating distance

kV 45


kA 50


kAp 125


O-0.3 sec - - CO - 3 min - CO


kA 125

2.16 Rated breaking current (symmetrical)

kA 50


kA To IEC 62271-100

2.18 Rated breaking current under out of phase conditions

kA

2.19 First pole to clear factor

2.20 Rated line charging breaking current

A

2.21 Rated cable charging breaking current

A

2.22 Rated small inductive breaking current of - unloaded transformer - reactor

A

2.23 Maximum overvoltage factor on any switching duty

pu <2.5

2.24 If the Overvoltage factor above, is in excess of 2.5 pu, then detail steps taken to protect the system from overstressing, by the use of suitable Metal-Oxide surge arresters

2.25 Maximum peak value of switching overvoltage when interrupting capacitive currents

kV

2.26 Maximum peak value of switching over-voltage when interrupting low inductive and reactor currents

kV




Unit Data Required Offered 2.27 Maximum total break time (trip initiation to final arc

extinction)

ms 60


− Without current ms − With 100% rated breaking current ms 2.29 Maximum time interval between opening of first and

last phase of three phase circuit breakers

ms

3


ms


− Without current ms − With 100% rated current ms 2.32 Maximum time interval between closure of first and

last phase of three phase circuit breaker

ms 3

2.34 Mechanical life of CB and Mechanism in number of operations

min 5000

2.35 Electrical contact life at rated current in No. of operations

2.36 Electrical contact life at 100% fault current in No. of operations

10

2.37 Internal arcing tests in the switchgear enclosure to IEC 60298 – Annex AA

Adjacent compartments

are not affected

2.38 Mechanical means for withdrawal

yes


3 pole

2.40 Manual spring discharge facility

Yes

2.41 Interlock facilities complying with requirements of specification

Yes

2.42 Type of power device

− For closing Motor-Spring − For opening Spring 2.43 Hand charging facility Yes




Unit Data Required Offered 2.44 Charging time

S


1


1


V 110 DC


V 220


W


W


W

2.52 Does earthing of truck remain effective until fully withdrawn

Yes


W

2.54 Mass of circuit breaker complete (three pole set)

kg

2.55 Partial discharge test voltage

kV IEC 60270


Yes

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

Yes

3 BUSBARS

3.1 Rated current at 50oC

− Manufacturer’s Standard A − Corresponding site rating A 3.2 Maximum temperature rise

oC

3.3 Cross Section

mm2

3.4 Material of barriers between units

3.5 Insulation of Busbars:

− Material − Maximum working temperature oC




Unit Data Required Offered 3.6 Type test certificate to be issued by independent

laboratory or independently witnessed type test certificate available

Yes

4 EARTHING SWITCH


− at busbar side − at line side 4.2 Type designation

− at busbar side − at line side 4.3 Type of operating mechanism

Manual

4.4 Standards

IEC 62271-102

4.5 Rated voltage

kV 12

4.6 Rated frequency

Hz 50


kV 95


kV 38

4.9 Rated short time (1 s) current

kA 50

4.10 Peak Current

kAp 125

4.11 Total mass of three phase complete earthing switch

− at busbar side kg − at line side kg 4.12 Type of contacts

− Moving Copper − Fixed Copper 4.13 Moving contacts are directly connected to earthing

system via copper connectors

Yes

4.14 Continuous running earth bar has been provided Yes




Unit Data Required Offered 5 CURRENT TRANSFORMER


5.2 Type

Cast-resin multi-core, multi-ratio

indoor

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

5.4 Standards

IEC 60044-1

5.5 Rated voltage

kV 12


kV 95


kV 38


kV IEC 60270

5.9 Rated frequency

Hz 50




kA 50


kA 125


5.14 Details of all current transformers are to be provided by the Contractor after contract award

- Type designation - Number of cores - Rated extended primary current in percentage of

rated primary current

- Ratio (TR – turns ratio) -

• I core A • II core A • III core A




Unit Data Required Offered 6 VOLTAGE TRANSFORMERS (3-phase sets to be

provided)



− Line transformer − Busbar transformer − Power transformer bay 6.3 Type

Inductive cast -

resin single pole insulated

6.4 Standards

IEC 60044-2

6.5 Rated voltage

kV 12

6.6 Rated frequency

Hz 50


kV 95


kV 38


kV IEC 60270

6.10 Type of primary isolation

Drawout

6.11 Line voltage transformer & Busbar Voltage Transformer

− Number of secondaries − Rated transformation ratio kV − Rated accuracy class − Rated output VA − Total mass of three phase voltage transformer

complete

kg

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

Yes

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

Yes



SCHEDULE D6 - CRANE FOR GIS BUILDING

Unit Data Required Offered 1 Manufacturer

2 Type

Overhead travelling

3 Capacity

t

4 Test load, dynamic

%

5 Operating speed:

- Hoist M/min - Trolley travel M/min - Bridge travel M/min 6 Operating power source and terminal voltage

- Voltage V 380/220 - Frequency Hz 50 7 Dimensions

- Span m - Length of runway m - Total lift of hook m 8 Crane drive motors

- Manufacturer - Type 9 Trolley drive motors

- Manufacturer - Type 10 Operator/Maintenance cage provided with trolley

yes

11 Enclosed current collector

yes

12 Hoist

- Manufacturer - Type - Type of control Pendant or

infrared

13 Total required power

kW

14 Weights

- Bridge complete t - Trolley complete t - Runway complete t



SCHEDULE D6 - CRANE FOR GIS BUILDING - CONT

Unit Data Required Offered 15 Reference Standards

BS 466, 2573

16 Manufacturer's Quality Assurance

ISO 9000 to 9004

17 Type Test Certificates (to be issued by independent laboratory or independently witnessed type test certificate)

yes



SCHEDULE D7 – 400/138.6 KV POWER TRANSFORMERS

Item Description Unit Data No Required Provided 1 Description of transformers

Transmission autotransformer

2 Type of transformers:

2.1 Indoor or outdoor

Outdoor

2.2 Shell or core

2.3 Auto or separate windings

Auto

2.4 Three phase or single phase units

Single

2.5 Cooling (IEC letter symbols)

ONAF1/ANAFZ/ANAN

3 Site Conditions

3.1 Altitude above sea level

m

Less than 1000m

3.2 Air temperature minimum

°C

-10

3.3 Air temperature maximum

°C

+55

4 IEC ratio power at terminals of:

4.1 HV winding

MVA

250

4.2 LV winding

250

4.3 Tertiary winding

MVA

75

5 Continuous maximum ratings at winding terminals according to tapping position when operating under site conditions:

5.1 HV winding

MVA

250

5.2 LV winding

MVA

250


MVA

75

6 Maximum ONAN and ONAF ratings of winding terminals irrespective of tapping position, when operating under site conditions

6.1 ONAN ratings:

6.1.1 HV winding

MVA 150

6.1.2 LV winding

MVA 150



SCHEDULE D7 – 400/138.6 KV POWER TRANSFORMERS - Cont

Item Description Unit Data No Required Provided 6.1.3 Tertiary winding

MVA

45

6.2 ONAF2 ratings:

6.2.1 HV winding

MVA

6.2.2 LV winding

MVA

6.2.3 Tertiary winding

MVA

7 Rated voltage corresponding to principal tapping

7.1 HV

kV

400

7.2 LV

kV

138.6

7.3 Tertiary

kV

11

8 System highest voltage:

8.1 HV

kV

420

8.2 LV

kV

145

8.3 Tertiary

kV

12

9 Method of system earthing

9.1 HV system

Solid

9.2 LV system

Solid

9.3 Tertiary system

Earthing transformer

10 Method of earthing of transformers

10.1 HV winding

Solid

10.2 LV winding

Solid


Earthing transformer

11 Rated frequency

Hz

50

12 Rated lighting impulse withstand level

12.1 HV winding

kVp

1300

12.2 LV winding

kVp

550

12.3 Tertiary winding kVp 125




Item Description Unit Data No Required Provided 13 Switching impulse withstand level

13.1 HV winding

kVp

1050

13.2 LV winding

kVp

-


kVp

-

14 Maximum system symmetrical rms fault current (1 phase or 3 phase) at the terminals of the transformer which the windings must be capable of withstanding

14.1 HV terminals

kA

40

14.2 LV terminals

kA

40

14.3 Tertiary terminals

kA

50

14.4 Asymmetrical crest factor

2.55

15 Phase connections

15.1 IEC vector group symbols

YNyn0d11

15.2 Whether links are required for alternative IEC vector group

No

15.3 Alternative vector group required

-

16 Windings

16.1 Common winding

Graded

16.2 Series winding

Graded

17 Whether one winding is a stabilising winding only

If so, whether the winding is to be brought out to If so, whether the winding is to be brought out to separate bushing insulator(s) or cable box terminals for test purposes (For earthing see Item 10)

No -

18 Whether `on-load' or `off-circuit' tap changing equipment or links are required

On load




Item Description Unit Data No Required Provided 19 Tapping quantities transformer

designation

HV LV

19.1 Minimum voltage ratio 366.6 145.2

19.2 Maximum current tapping (HV)

382.6 145.2

19.3 Maximum current tapping (LV)

400 125.4

19.4 Principal tapping

400 138.6

19.5 Maximum voltage tapping (LV) 400 145.2

19.6 Maximum voltage ratio

400 118.8

See note below

220 Tapping steps:

20.1 Approximate size

%

1

20.2

Approximate number 20

21 Excess of continuously applied voltage over tapping voltage for any tapping when transformer is delivering tapping power

5%

22 Whether tappings are preferred on any particular winding

22.1 On common winding

Yes

22.2 IEC category of voltage variation

CFVV

22.3 On series winding

No


-

22.5 On Tertiary winding

No


-

23 Whether on-load tap changing equipment shall be suitable for supervisory control and indication

Yes

24 Remote tap change control panel




Item Description Unit Data No Required Provided 24.1 Whether required

Yes

24.2 Exterior finish

To match existing plant

25 Automatic voltage control equipment

25.1 Whether required

Yes

25.2 Whether to be suitable for remote adjustment of setting

Yes

26 Whether equipment shall be provided to permit automatic synchronised operation of on-load tap changing equipment in parallel with similar transformers

Yes

27 Whether gas and oil actuated relay shall be fitted to each tap selector compartment

Yes

28 Bushing insulators or cable boxes for line terminals

28.1 HV and LV

Oil/SF6 bushing or Oil/Air as applicable

28.2 Tertiary

Cable box*

28.3 Filling medium for cable boxes

Air

29 Whether disconnecting chambers are required

Yes

30 Bushing insulator or cable box for neutral terminals, if any:

30.1 HV

Bushing

30.2 LV

Bushing

30.3 Tertiary -

31 Whether accommodation for current transformers shall be provided on:

31.1 HV terminals

Yes

31.2 LV terminals

Yes

31.3 Common winding neutral end

Yes

31.4 Tertiary terminals Yes




Item Description Unit Data No Required Provided 32 Whether tapping shall be brought

out from each capacitance graded type bushing insulator to a separate terminal for power factor testing on site, on:

32.1 HV bushings

N/A (Unless Oil/air supplied)

32.2 LV bushings

N/A (Unless Oil/air supplied)

32.3

Tertiary bushings No

33 Whether pressure relief device is to be fitted

Yes

34 Whether first filling of oil shall be supplied for the transformer and its associated oil filled equipment

Yes

35 Whether transformer shall be transported filled with oil or with a suitable gas

Gas

36 Minimum capacity of conservator between highest and lowest visible levels, as percentage of total cold oil volume of the transformer

% 7.5

37 Whether marshalling unit shall be provided IF SO:

Yes

37.1 Whether free-standing kiosk or transformer mounted cabinet

Free standing

37.2 Whether metalclad heater to be provided

Yes

38 Type of dehydrating breather:

38.1 Silica Gel

No

38.2 Automatic of the repetitive cycle type (Dehydrating)

Yes

39 Whether wheels shall be provided If so:

Yes

39.1 Whether plain or flanged

To be agreed with M.O.E.




Item Description Unit Data No Required Provided 39.2 Whether required to turn through

90°

Yes

39.3 Gauge of track


40 Whether winding or oil temperature indicators are required

Yes

40.1 HV winding wti

Yes

40.2 LV winding wti

Yes

40.3 Tertiary winding (wti)

Yes

40.4 Oil temperature indicator

Yes

41 Whether winding temperature indicator remote repeaters are required

No

42 Whether the forced cooling equipment is to be operated automatically from contacts on the winding temperature indicator

Yes

43 Whether electrical energy will be provided on site for erection purposes IF SO: Maximum available power

kVA

To be agreed with M.O.E

44 Supply voltage for transformer auxiliaries

V

380/220

45 Whether control and instrument wiring shall conform to specified colour code

Yes

46 Impulse tests: (state whether "type" or "routine")

Routine

46.1 Whether recurrent surge oscillograph tests are to be carried out

Yes

46.2 Whether HV winding to be directly impulse tested

Yes




Item Description Unit Data No Required Provided 46.2.1 Whether chopped waves to be

included

Yes

46.2.2 For tests of HV winding impedance to earth from:

- Other HV terminals - LV terminals - Tertiary terminals

Earthed Earthed except tested

phase Resistance earthed

46.3 Whether LV winding to be directly impulse tested

Yes

46.3.1 Whether chopped waves to be included

Yes

46.3.2 For tests on LV winding, impedance to earth from: - Other LV terminals - HV terminals - Tertiary terminals

Earthed Earthed except tested

phase Resistance earthed

46.4 Whether tertiary winding to be directly impulse tested

Yes

46.4.1 Whether chopped waves to be included

No

46.4.2 For tests on tertiary winding, impedance to earth from: - Other tertiary terminals - HV terminals - LV terminals

Earthed Earthed except for

tested phase Earthed except for

tested phase

47 Dielectric tests on windings with Um » 300 kV, non-uniform insulation:

47.1 Whether tests shall be conducted in accordance with Method 1 or Method 2, to IEC 60076-3

Method 1

47.2 If Method 2, voltage level U2 at which partial discharge measurements shall be made

48 Whether zero phase sequence impedance test required

Yes




Item Description Data No Required Provided 49 Vacuum test level

m bars

(a) 25

50 Maximum temperature rise above ambient at IEC rated power

51.1 Of windings:

51.1.1 Hot spot

°C

51.1.2 Average (by resistance)

°C

55

51.2 Of oil:

15.2.1 Top of oil

°C

50

51.2.2 At inlet to cooler

°C

51.2.3 At outlet from cooler

°C

52 Maximum flux density in iron at rated voltage and power frequency and at rated voltage ratio

52.1 Wound limbs

T

52.2 Unwound limbs

T

52.3 Yokes

T

52.4 Shields

T

53 Maximum flux density in iron under the most onerous voltage conditions and at power frequency:

53.1 Wound limbs

T

53.2 Unwound limbs

T

53.3 Yokes

T

53.4 Shields

T

54 Maximum current density in windings at IEC rated power:

54.1 HV

A/mm2

54.2 LV

A/mm2

54.3 Tertiary A/mm2




Item Description Unit Data No Required Provided 54.4 Tapping

A/mm2

55 Magnetising current (HV winding)

55.1 At 90% rated voltage

A


A


A

55.4 At the maximum voltage equivalent to the value quoted in Schedule D Part I

A

56 No load losses at rated voltage ratio and IEC rating (guaranteed value) :

kW

57 Input to cooling plant

kW

58 Load losses at 75°C and rated ONAF power:

i) On principal (normal) tapping,

58.1 Tap position number

58.2 HV /LV (guaranteed value)

kW

58.3 HV/ tertiary at tertiary rated power kW

58.4 LV/ tertiary winding at tertiary rated power

kW

ii) On tapping for maximum loss

58.5 Tap number

58.6 HV /LV (guaranteed value)

kW

58.7 HV/ tertiary at tertiary rated power

kW

58.8 LV/ tertiary winding at rated power

kW

59 Load losses at 75°C and rated ONAN power

kW

i) On principal (normal) tapping,

59.1 Tap position number




Item Description Unit Data No Required Provided 59.2 HV /LV (guaranteed value)

kW


kW

59.4 LV/ tertiary winding at rated power

kW

ii) On tapping for maximum loss

59.5 Tap number

59.6 HV /LV

kW


kW

LV/ tertiary winding at rated power

kW

60 Total losses at 75°C and normal voltage

60.1 At IEC rating (guaranteed value)

kW

60.2 At ONAN rating

kW

60.3 Proportion of sum of fixed and load losses at rated power which will be supplied during the temperature risetest

%

61 Impedance voltage at 75°C on principal tapping - per cent on primary winding rating (including all tolerances)

MAX/MIN MAX/MIN

61.1 Between HV and LV windings

%

18-19

61.2 Between HV and tertiary windings

%

61.3 Between LV and tertiary windings

60 Impedance voltage at 75°C at each end of tapping range - per cent on primary winding rating (including all tolerances)

MAX/MIN MAX/MIN

60.1 Between HV and LV windings At maximum voltage ratio At minimum voltage ratio

60.4 Connecting leads from winding to tap changer

60.5 Tertiary windings




Item Description Unit Data No Required Provided 61 Calculated thermal time constant:

61.1 Natural cooling

s

61.2 Forced cooling

s

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

62.1 To the windings:

62.1.1 HV

62.1.2 LV

62.1.3 Tapping 62.1.4 Tertiary

62.2 Through the windings:

62.2.1 HV

62.2.2 LV

62.2.3 Tapping

62.2.4 Tertiary

63 Core construction

63.1 Taped/banded/bolted limbs

63.2 Taped/banded/bolted yokes

63.3 Taping/banding material

63.4 Number of limbs

63.5 Number of limbs wound

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

64.1 Whether tank or other flux shields are incorporated

64.2 Type of core steel

64.3 Specific loss of core steel at 1.5 tesla

W/kg




Item Description Unit Data No Required Provided 65 Voltage rating of neutral bushing or

cable box:

65.1 HV neutral

kV

65.2 LV neutral

kV

65.3 Tertiary neutral

kV

66 Type of on-load voltage control equipment:

66.1 Single or double compartment type etc

66.2 Manufacturer's type designation

67 Tappings

67.1 Arrangement of tappings (Linear, Coarse/fine, Reversing)

67.2 Which winding is tapped and where (e.g. neutral end)

67.3 Size of step as percentage of winding rated voltage

%

67.4 Number of steps

68 Minimum thickness of tank base plate

Base plate Side plate

Base plate

Side plate

68.1 With flat base 19 6 Length not exceeding 2500mm 19 6 Length exceeding 2500mm not

exceeding 7500mm

25 9

Length exceeding 2500mm

32 16

68.2 With fabricated underbase Length not exceeding 2500mm 9 6 Length exceeding 2500mm 12 9 68.3 Top

mm

69 Material of transformer tank

70 Thickness of radiator plates and/or cooling tubes

mm




Item Description Unit Data No Required Provided 71 Number of coolers or cooler banks

per transformers

72 Rating of each cooler or cooler bank

kW

73 Total oil required (including cooling system) litres

74 Filling medium of transformer tank for shipment

75 Total volume of conservator

litres

76 Volume of oil in conservator between the highest and lowest visible levels

litres

77 Mass of core and windings tonnes

78 Mass of copper required in the complete transformer kg

79 Mass of core laminations

kg

80 Total mass of complete transformer including cooling gear, voltage regulating equipment, all fittings and oil

tonnes

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

tonnes

82 Maximum noise level (`A' weighting)

dB

88

83 Dimensions of transformer arranged for transport:

83.1 Height

m

83.2 Width

m

83.3 Length

m

84 Time for which transformer can safely withstand 30 per cent over-voltage s




Item Description Unit Data No Required Provided 85 Whether any reactors, capacitors,

linear or non-linear resistors are immersed in the oil of the transformer or tap changer tank

86 Transformer magnetising characteristics (on nominal tapping), and allowable duration:

86.1 250 MVA TRANSFORMER VOLTAGE

ph-ph kV 360 400 440 480 520 560 600

MAGNETISINGCURRENT current/ph (A rms/ph) (s)

87 Flux-current (B-H curve for the

transformers):

88 Confirm that the life of the transformer will not be significantly reduced if subjected to the overvoltages specified in Schedule D Part I

YES/NO YES/NO

(Delete as applicable)



SCHEDULE D8 - 400 KV SHUNT REACTORS

Item Description Unit Data No Required Provided 1 Description of reactor

1.1 Indoor or outdoor installation Outdoor

1.2 Shell or core construction

1.3 Gapped core or coreless type


Three or single

2 Site conditions

2.1 Altitude above sea level m Less than 1000m

2.2.1 Air minimum °C -10

2.2.2 Air maximum °C +55

3 Continuous maximum rating (CMR) when operating under site conditions:

50MVA

4 Rated frequency Hz 50

5 Rated voltage kV 420

6 Nominal voltage kV 400

7 Vector group symbol YN

8 Method of system earthing Solid - Effective

9 Method of earthing the reactors Not applicable

10 Type of cooling ONAN

11 Impulse withstand level (full wave 1.2/50 microsecond) under site conditions

kVp 1425

12 Whether star connected winding shall be fully insulated or graded

Graded

13 Bushing insulators or cable boxes or sealing ends for:

13.1 Line terminals Oil/SF6 bushing or Oil/Air as applicable

13.2 Neutral end terminals Bushing



SCHEDULE D8 - 400 KV SHUNT REACTORS - Cont

Item Description Unit Data No Required Provided 14 Whether accommodation for current

transformers shall be provided on:

14.1 Line terminals Yes

14.2 Neutral end terminals Yes

15 Whether tapping shall be brought out from each capacitance graded type bushing insulator to a separate terminal for power factor testing on site

N/A (Unless Oil/Air Supplied)

16 Whether pressure release device is to be fitted

Yes

17 Whether first filling of oil shall be supplied for the reactor and its associated oil filled equipment

Yes

18 Whether reactor shall be transported filled with oil or a suitable gas

Gas

19 Minimum capacity of conservator between highest and lowest visible levels, as percentage of total cold oil volume of the reactor

7.5%

20 Whether marshalling kiosk or reactor mounted cabinet

Marshalling kiosk

21 Type of dehydrating breather:

21.1 Silica Gel No

21.2 Automatic of the repetitive cycle (Dehydrating)

Yes

22 Whether wheels are required If yes:

Yes

22.1 Whether plain or flanged To be agreed with M.O.E

22.2 Whether required to turn through 90°

Yes

22.3 Gauge of track To be agreed with M.O.E.

23 Whether oil temperature indicator is required

Yes



SCHEDULE D8 -400 KV SHUNT REACTORS - Cont

Item Description Unit Data No Required Provided 24 Vacuum test level

m bars

(a)

25

25 IEC rated power

MVAr

26 IEC rated lightning impulse withstand voltage

kVp


27.1 Of windings

27.1.1 Hot spot

°C


°C

55

27.2 Of oil

27.2.1 Top oil

°C

50


°C

27.2.3 At outlet to cooler

°C

28 Maximum flux density in iron at rated voltage and power frequency

28.1 Cores

T

28.2 Yokes

T

28.3 Shields

T

29 Maximum current density in winding at IEC rated power

A/mm²

30 Total losses at 75°C and rated voltage

kW

31 Impedance at 75°C at IEC rated voltage and IEC rated power

32 Resistance of windings at 75°C

ohms/phase

33 Type of winding

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

35 Conductor insulation




Item Description Unit Data No Required Provided 36 Calculated thermal time constant s

37 Type of joint in magnetic core (90° butt, overlap, mitre etc.)




W/kg

38 Voltage rating of neutral bushing or cable box

kV

39 Minimum thickness of tank base plate

Base plate Side plate

Base plate

Side plate

39.1 With flat base

19 6

39.2 Length not exceeding 2500mm 19 6 Length exceeding 2500mm not

exceeding 7500mm

25 9

Length exceeding 2500mm

32 16

With fabricated underbase Length not exceeding 2500mm 9 6 Length exceeding 2500mm 12 9 39.3 Top

mm

40 Material of reactor tank

41 Thickness of radiator plates and/or cooling tubes

mm

42 Number of coolers or cooler banks per reactor


kW

44 Total oil required (including cooling system)

litres

45 Filling medium of reactor tank for shipment

46 Total volume of conservator

litres




Item Description Unit Data No Required Provided 47 Volume of oil in conservator

between the highest and lowest visible levels

litres

48 Mass of core and winding

tonnes

49 Mass of copper required in the complete reactor

kg

50 Mass of core laminations

kg

51 Total mass of complete reactor including control gear, all fittings and oil

tonnes

52 Mass of reactor as arranged for transport (heaviest part)

tonnes

53 Maximum noise level (‘A’ weighing)

dB

54 Dimensions of reactor arranged for transport

54.1 Height

m

54.2 Width

m

54.3 Length

m

55 Departure from linearity of voltage/current characteristic at following percentages of rated voltage

55.1 110 per cent

A

55.2 120 per cent

A

55.3 130 per cent

A

55.4 Whether above values will be demonstrated by test



SCHEDULE D9 – EARTHING TRANSFORMERS (11 KV TERTIARY)

Unit Data Required Offered 1 EARTHING TRANSFORMER



1.3 Type

Three phase, oil immersed,

core type

1.4 Standards

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

60296 NEMA TR1

1.5 Mounting Outdoor, wheel

1.6 Rated voltage

kV 11

1.7 Rated frequency

Hz 50

1.8 Vector group

ZN

1.9 Cooling

ONAN


1.10.1 HV winding Solid 1.11 Type (graded/non-graded) of windings

1.11.1 HV winding Non-graded 1.12 Rated voltage of windings

1.12.1 HV winding kV 11 1.13 Highest voltage for equipment

1.13.1 HV winding

kV 12



SCHEDULE D9 – EARTHING TRANSFORMERS (11 KV TERTIARY) - Cont

Unit Data Required Offered 1.14 Rated lightning impulse withstand voltage at HV

Terminal

kV 95

1.15 Rated power frequency withstand voltage at

1.15.1 HV terminal

kV 38

1.16 HV neutral terminal

kV 38

1.17 Maximum temperature rise at rated power at:

1.17.1 Windings

K 55

1.17.2 Hot spot of windings

K 68

1.17.3 Top oil

K 50

1.17.4 Oil at inlet of cooler

K

1.17.5 Oil at outlet of cooler

K

1.17.6 Core

K

1.18 Losses at rated voltage and rated frequency

kW

1.19 Maximum current density at rated power:

1.19.1 HV winding

A/mm2

1.19.2 LV auxiliary winding

A/mm2

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

1.20.1 HV terminal kA 50 1.21 Magnetising current (HV winding)

1.21.1 At 90% rated voltage

A

1.21.2 At 100% rated voltage

A

1.21.3 At 110% rated voltage A



SCHEDULE D9– EARTHING TRANSFORMERS (11 KV TERTIARY) - Cont

Unit Data Required Offered 1.22 Maximum flux density in core at rated voltage, power

frequency

T

1.23 Limitation and withstanding of fault current in neutral for 30s

A To be calculated

1.24 Resistance of winding at 75°C:

1.24.1 HV side

Ω/phase

1.25 Zero phase sequence impedance of inter-star windings at 75°C

Ω/phase

1.26 Terminal connection

1.26.1 HV terminal Air-filled cable box

1.26.3 HV neutral terminal Air-filled cable box

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

1.28.1 HV terminal

Yes

1.29.2 LV terminal

No

1.30 Mounting of current transformer at

1.30.1 HV terminal

In tank

1.30.2 Neutral terminals

In tank or box

1.31 Current transformers

To suit

HV Neutral Number of cores


Ratio (TR = turns ratio)

I core A II core

A

Class

I core II core



SCHEDULE D9– EARTHING TRANSFORMERS (11 KV TERTIARY) - Cont

Unit Data Required Offered

Knee point voltage (Ek)

I core V II core

V

Exciting current (IE ) at Ek

I core mA II core

mA

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

I core VA II core

VA

1.32 Oil:

1.32.1 Manufacturer

1.32.2 Type designation

1.32.3 Standards

IEC 60296

1.32.4 Minimum flash point

oC

1.32.5 Viscosity

At 20oC mm2/s At 50oC mm2/s At 80oC

mm2/s

1.32.6 Maximum dielectric strength for 1 min

kV

1.32.7 Dielectric factor

1.32.8 Acidity (neutralization value) mgKOH/g

1.33 Type of dehydrating breather (Non-sealed transformers)

Silicagel – automatic

recharge type

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

1.34.1 HV windings

1.35 Conductor insulation:

1.35.1 HV winding

1.36 Calculated thermal time constant

min

1.37 Thickness of transformer tank



SCHEDULE D9 – EARTHING TRANSFORMERS (11 KV TERTIARY) - Cont

Unit Data Required Offered 1.37.1 Sides

mm

1.37.2 Bottom

mm

1.37.3 Top

mm

1.38 Material of transformer tank

1.39 Thickness of radiator plates

mm

1.40 Total volume of conservator

litres

1.41 Masses of transformer

1.42 Core and coils

kg

1.43 Total mass excluded oil

kg

1.44 Oil mass • in tank kg • in radiators kg • total

kg

1.45 Total mass

kg

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

kg

1.47 Dimensions of transformer arranged for transport

Height m Width m Length m 1.48 Maximum noise level (to NEMA TR1)

dB 56

1.49 Vibration test (Y/N)

N

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

Hot dip galvanized and painted

1.51 Tank anticorrosion protection

1.52 Control/Protection voltage

V 110 DC

1.53 Manufacturer quality assurance

Yes

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

1.54 Type test certificates to be issued by:

Independent Laboratory or independently witnessed type test certificate

Yes



SCHEDULE D10 –AUXILIARY TRANSFORMERS (11 KV TERTIARY)

Unit Data Required Offered 1 AUXILIARY TRANSFORMER 11/0.380 KV; WITH

AUXILIARY WINDING



1.3 Type

Three phase, oil immersed,

core type

1.4 Standards

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

60296 NEMA TR1

1.5 Mounting Outdoor, wheel

1.6 Rated voltage ratio

kV 11/0.380

1.7 Rated frequency

Hz 50

1.8 Vector group

Dyn11

1.9 Cooling

ONAN


Transformer

1.10.1 HV winding

Solid

1.10.2 LV winding Solid 1.11 Type (graded/non-graded) of windings

1.11.1 HV winding

Non-graded

1.11.2 LV auxiliary winding Non-graded 1.12 Rated voltage of windings

1.12.1 HV winding

kV 11



SCHEDULE D10 –AUXILIARY TRANSFORMERS (11 KV TERTIARY) - Cont

Unit Data Required Offered 1.12.2 LV auxiliary winding kV 0.380 1.13 Highest voltage for equipment

1.13.1 HV winding

kV 12

1.13.2 LV auxiliary winding kV 0.420 1.14 Rated lightning impulse withstand voltage at HV

Terminal

kV 95

1.15 Rated power frequency withstand voltage at

1.15.1 HV terminal

kV 38

1.15.2 LV terminal

kV 3

1.16 HV neutral terminal kV 38 1.17 Rated power at site conditions

kVA Rated to suit

1.18 Maximum temperature rise at rated power at:

1.18.1 Windings

K 55

1.18.2 Hot spot of windings

K 68

1.18.3 Top oil

K 50

1.18.4 Oil at inlet of cooler

K

1.18.5 Oil at outlet of cooler

K

1.18.6 Core K 1.19 Temperature rise of winding due to short circuit

duration of 2 s and HV side short circuit current of 25 kA

1.20 No load losses at rated voltage and rated frequency

kW




Unit Data Required Offered 1.21 Load losses at 75°C, and rated frequency, rated power

and principal tapping:

1.22 Maximum current density at rated power:

1.22.1 HV winding A/mm2

1.22.2 LV auxiliary winding A/mm2

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

1.23.1 HV terminal kA 50

1.23.2 LV auxiliary terminal kA

1.24 Magnetising current (HV winding)




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

T

1.26 Type of tap changing Off-load

1.27 Type designation of off-load tap changer

1.28 Tapped winding HV

1.29 Tapping range

+5% -5%

1.30 Tapping step

2.5%

1.31 Number of steps (positions)

4 (5)

1.32 Impedance voltage range at 75°C and principal tapping:

1.33 At principal tapping

> 4%

1.33.1 At maximum voltage ratio

>4%

1.33.2 At minimum voltage ratio

>4%



SCHEDULE D10–AUXILIARY TRANSFORMERS (11 KV TERTIARY) - Cont

Unit Data Required Offered 1.34 Resistance of winding at 75°C and principal tapping:

1.34.1 HV side

Ω/phase

1.34.2 LV auxiliary side

Ω/phase

1.35 Terminal connection

1.35.1 HV terminal Air-filled cable box

1.35.2 LV terminal Air-filled cable box

1.35.4 LV neutral terminal Air-filled cable box

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

1.36.1 HV terminal

Yes

1.36.2 LV terminal

No

1.37 Mounting of current transformer at

1.37.1 HV terminal

In tank

1.37.2 Neutral terminals

In tank or box

1.38 Oil:

1.38.1 Manufacturer


1.38.3 Standards

IEC 60296

1.38.4 Minimum flash point

oC

1.38.5 Viscosity

At 20oC mm2/s At 50oC mm2/s At 80oC

mm2/s

1.38.6 Maximum dielectric strength for 1 min

kV

1.38.7 Dielectric factor

1.38.8 Acidity (neutralization value) mgKOH/g



SCHEDULE D10–AUXILIARY TRANSFORMERS (11 KV TERTIARY) - Cont

Unit Data Required Offered 1.39 Type of dehydrating breather (Non-sealed

transformers) Silicagel –

automatic recharge type

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

1.40.1 HV windings

1.40.2 LV windings

1.41 Conductor insulation:

1.41.1 HV winding

1.41.2 LV winding

1.42 Calculated thermal time constant

min

1.43 Thickness of transformer tank

1.43.1 Sides

mm

1.43.2 Bottom

mm

1.43.3 Top

mm

1.44 Material of transformer tank

1.45 Thickness of radiator plates

mm

1.46 Total volume of conservator

litres

1.47 Masses of transformer

1.48 Core and coils

kg

1.49 Total mass excluded oil

kg

1.50 Oil mass • in tank kg • in radiators kg • total

kg

1.51 Total mass

kg

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

kg

1.53 Dimensions of transformer arranged for transport

Height m Width m Length m




Unit Data Required Offered 1.54 Maximum noise level (to NEMA TR1)

dB 56

1.55 Vibration test (Y/N)

N

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

Hot dip galvanized and painted

1.57 Tank anticorrosion protection

1.58 Control/Protection voltage

V 110 DC

1.59 Manufacturer quality assurance

Yes

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

1.60 Type test certificates to be issued by:

Independent Laboratory or independently witnessed type test certificate

Yes



SCHEDULE D11 – CAPACITORS (11 KV TERTIARY)


1.1 Assigned rated current A

1.2 Assigned rated voltage kV

1.3 Assigned rated output MVAr

1.4 Whether complete 3-phase bank is star or delta connected

1.5 Rated frequency Hz

1.6 Temperature category to IEC 60871

1.7 Nominal capacitance:

1.7.1 For each element µF

1.7.2 For each capacitor unit µF

1.7.3 Capacitance of single phase bank µF

1.8 Dielectric embodied in elements:

1.8.1 Whether paper and/or plastic film

1.8.2 Thickness of each:

(a) Paper µm (b) Film µm

1.8.3 Number per layer:

Of paper Of film

1.9 Element foils thickness µm

1.10 Method of making connections to element foils

1.11 Details of impregnating medium:

1.11.1 Trade name

1.11.2 Chemical compound

1.12 Nominal rated voltage of elements V

1.13 Design maximum dielectric stresses:

(a) Paper V/µm (b) Film V/µm



SCHEDULE D11 – CAPACITORS (11 KV TERTIARY) – Cont


1.14 Minimum rms breakdown voltage of individual elements

V

1.15 Connection of elements per capacitor unit:

1.15.1 Number in parallel

1.15.2 Number in series

1.16 Rated voltage UN of capacitor unit kV

1.17 Rated current of unit A

1.18 Rated output of unit MVAr

1.19 Connection of capacitors:

1.19.1 Number of units in parallel per phase

1.19.2 Number of unit groups in series per phase

1.20 Details of fusing arrangement and whether internal or external

1.21 Losses in capacitor unit determined as described in IEC 60871 at dielectric temperatures of: 20 °C 75 °C

W/kWAr W/ kVAr

1.22 Variation of losses due to temperature variation over the ambient temperature range for the temperature category stated in Item 1.6 W/ kVAr at °C W/ kVAr at °C

W/ kVAr W/ kVAr

1.23 Variation of capacitance due to temperature variation over the ambient temperature range for the temperature category stated in Item 1.6

%

1.24 Maximum operating surface temperature rise of container - (above an ambient temperature of 50°C)

°C

1.25 Maximum internal hot spot temperature rise (above ambient stated in Item 1.24)

°C

1.26 Weight of complete unit capacitor including all fittings and impregnating medium

kg



SCHEDULE D11 – CAPACITORS (11 KV TERTIARY) – Cont


1.27 Total weight of complete 3-phase capacitor bank arranged for transport

kg

1.28 Thickness of container: mm

1.28.1 Top mm

1.28.2 Sides mm

1.28.3 Bottom mm

1.29 Type of connector provided at HV terminals of capacitor bank

1.30 Type of connector provided at neutral ends of capacitor bank

1.31 Minimum ambient temperature at which a capacitor bank at this temperature may be energised at rated voltage and frequency without damage to, or loss of life of, unit capacitors or deterioration of associated fuses

°C

1.32 Details of discharge device:

1.32.1 Type

1.32.2 Connection

1.32.3 Number of devices (per element, of group of elements)

1.32.5 Voltage rating/device V

1.32.6 Current rating/device mA

1.32.7 Total loss per device at rated current W

1.32.8 Total loss per unit capacitor at rated current W

1.32.9 Estimated times for discharge down to the voltage limit specified in IEC 60871:

(a) For a unit capacitor Minutes (b) For the complete single phase bank Minutes



SCHEDULE D12 - 11 KV (TERTIARY) SHUNT REACTORS

Unit Data Required Provided 1 Description of reactor

1.1 Indoor or outdoor installation

Outdoor

1.2 Shell or core construction

1.3 Gapped core or coreless type


Three

2 Site conditions

2.1 Altitude above sea level m

Less than 1000 m

2.1.1 Air minimum

°C -10

2.1.2 Air maximum

°C +55

3 Continuous maximum rating (CMR) when operating under site conditions:

25 MVA

4 Rated frequency

Hz 50

5 Rated voltage

kV 12

6 Nominal voltage

kV 11

7 Vector group symbol

YN

8 Method of system earthing

Transformer

9 Method of earthing the reactors

Not applicable

10 Type of cooling

ONAN


kVp 95

12 Whether star connected winding shall be fully insulated or graded

13 Bushing insulators or cable boxes or sealing ends for:

13.1 Line terminals

Cable

13.2 Neutral end terminals

-

14 Whether accommodation for current transformers shall be provided on:



SCHEDULE D12 -11 KV (TERTIARY) SHUNT REACTORS - Cont

Unit Data Required Provided 14.1 Line terminals

No

14.2 Neutral end terminals

No

15 Whether tapping shall be brought out from each capacitance graded type bushing insulator to a separate terminal for power factor testing on site

N/A

16 Whether pressure release device is to be fitted

Yes

17 Whether first filling of oil shall be supplied for the reactor

Yes

18 Whether reactor shall be transported filled with oil or a suitable gas

Oil

19 Minimum capacity of conservator between highest and lowest visible levels, as percentage of total cold oil volume of the reactor

7.5%

20 Whether marshalling kiosk or reactor mounted cabinet

Reactor mounted cabinet

21 Whether plain or flanged To be agreed with M.O.E.

21.1 Silica Gel

Yes

21.2 Automatic of the repetitive cycle (Dehydrating)

No

22 Whether wheels are required If yes:

Yes

22.1 Whether plain or flanged


22.2 Whether required to turn through 90°


22.3 Gauge of track


23 Whether oil temperature indicator is required

Yes

24 Vacuum test level

m bars (a)




Unit Data Required Provided 25 IEC rated power

MVAr

26 IEC rated lightning impulse withstand voltage

kVp 95


27.1 Of windings

27.1.1

Hot spot °C


°C 55

27.2 Of oil

27.2.1 Top oil

°C 50


°C

27.2.3 At outlet to cooler

°C

28 Maximum flux density in iron at rated voltage and power frequency

28.1 Cores

T

28.2 Yokes

T

28.3 Shields

T

29 Maximum current density in winding at IEC rated power

A/mm²

30 Total losses at 75°C and rated voltage

kW

31 Impedance at 75°C at IEC rated voltage and IEC rated power

32 Resistance of windings at 75°Cohms/phase

33 Type of winding

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

35 Conductor insulation

36 Calculated thermal time constants




Unit Data Required Provided 37 Type of joint in magnetic core

(90° butt, overlap, mitre etc.)




W/kg

38 Voltage rating of neutral bushing or cable box

kV

39 Minimum thickness of tank base

Base Plate

Side Plate

Base Plate

Side Plate

39.1 With flat base

19 6

39.2 Length not exceeding 2500 mm

19 6

Length exceeding 2500 mm not exceeding 7500 mm

25 9

Length exceeding 2500 mm

32 16

With fabricated underbase

Length not exceeding 2500 mm

9 6

Length exceeding 2500 mm

12 9

39.3 Top

mm

40 Material of reactor tank


kW

42 Total oil required (including cooling system) litres

43 Total mass of compelte reactor including control gear, all fittings and oil

Tonnes

44 Mass of reactor as arranged for transport (heaviest part)

Tonnes

45 Maximum noise level (‘A’ weighting)

dB

46 Dimensions of reactor arranged for transport




Unit Data Required Provided 46.1 Height

m

46.2 Width

m

46.3 Length

m

47 Departure from linearity of voltage/current characteristic at following percentages of rated voltage

47.1 110 per cent

A

47.2 120 per cent

A

47.3 130 per cent

A

47.4 Whether above values will be demonstrated by test



SCHEDULE D13 – BUSHINGS

Item No.

Description Unit Required Offered

1 Nominal voltage (UN)

kV 380 132 11

2 Site altitude above sea level for which bushings are to be suitable where this exceeds 1000 m

Less than 1000 m

3 Minimum nominal specific creepage distance in mm per unit of system highest voltage

mm/kV 31


kVp 1425 650 95

5 Switching surge withstand level

kVp 1050 - -

6 Arcing horns or rings

Yes Where Oil/Air Bushings provided

7 Radio influence voltage measured at 110 per cent of the maximum line to ground operating voltage and at 1000 kHz, shall be less than

µV 500

8 Maximum symmetrical fault current

kA 40 40 50



SCHEDULE D14 – LVAC SWITCHGEAR

Data Unit Required Offered

A LVAC SWITCHGEAR (380/220 V, 50 Hz)

1 GENERAL

1.1 Rated voltage

V 380

1.2 Rated frequency

Hz 50

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 50°C ambient temperature

A

2.7 Busbar cross section

mm2

2.8 Busbar insulation material

2.9 Busbar insulation maximum working temperature

°C

210 Temperature rise on continuous operation at rated current at 50°C


kA


kA

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



SCHEDULE D14 – LVAC SWITCHGEAR - Cont


2.17 Overall dimensions per cubicle

− Width mm − Depth mm − Height mm − Weight

kg

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 50°C

A


kA


kA

3.9 Rated symmetrical breaking current

kA


kA

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 Type tests

3.16.1 Temperature Rise Test

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

− report number − date

3.16.2 Basic Impulse Voltage Type Test:

Has B.I.V test been completed?

− circuit breaker − report number

− date

3.16.3 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

4.4 Number of poles

3

4.5 Standards

IEC 60947-2


A


kA


kA

4.9 Rated breaking current

kA

4.10 Remote signalling

yes

4.11 Operating mechanism





4.12 Mass

5 CURRENT TRANSFORMERS 5.1 Manufacturer

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

etc.)

5.4 Standards IEC 60044-1 5.5 Rated voltage

kV


kV


kV

5.8 Partial discharge test voltage kV 5.9 Rated frequency

Hz 50



kA


kA

5.13 Line current transformer


5.13.2 Number of cores

5.13.3 Rated extended primary current

%

5.13.4 Ratio (TR = turns ratio) • I core • II core

A A

5.13.5 Class • I core • II core

5.13.6 Knee point voltage (EK) • I core • II core

V V





5.13.7 Exciting current (IE) at EK • I core • II core

A A

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

VA VA

6 INSTRUMENTS

6.1 Manufacturer

6.2 Standards

IEC 60051

6.3 Type designation − Ammeter

− Voltmeter

6.4 Total scale range − Ammeter − Voltmeter

6.5 Dimensions

mm

6.6 Accuracy

7 PROTECTION RELAYS

7.1 Earth Fault Protection

7.1.1 Manufacturer

7.1.2 Type reference

7.1.3 Relay design (electromechanical, static, microprocessor-based, numerical)

7.1.4 Range of current settings, percent of current rating

%

7.1.5 Range of time multiplier setting

7.1.6 Current at which relay resets, percent of current setting

%

7.1.7 Current at which relay picks-up, percent of current setting

%





7.1.8 Self-checking facility

7.1.9 CT’s requirements

7.1.10 Tripping contacts ratings

7.2 Restricted Earth Fault Protection

7.2.1 Manufacturer


7.2.3 Relay design (electromechanical, static, microprocessor-based, numerical)

7.2.4 Estimated minimum faults setting (% of CT rating)

%

7.2.5 Operating time at 5 x setting

ms

7.2.6 Maximum primary out-of-zone fault current at which protection is stable

A

7.2.7 State principle of operation, i.e. H - high impedance L - low impedance

H

7.2.8 Current transformer requirements: − Required knee point voltage, Vk − CT maximum winding resistance − Magnetising current at Vk

V Ω A

7.2.9 Self monitoring

yes

7.2.10 Self checking

yes

7.2.11 Tripping contacts rating

7.3 Undervoltage / Overvoltage Relay

7.3.1 Manufacturer


7.3.3 Relay design (electromechanical, static)

7.3.4 Total scale range

V





7.3.5 Operate time at instantaneous voltage change for undervoltage / overvoltage relay

ms

7.3.6 Reset ratio overvoltage / undervoltage

%

7.3.7 Self monitoring

7.3.8 Self checking

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 certificate available

yes



SCHEDULE D15– DC SYSTEM

Data 110 V D.C System Unit Required Offered

1 110 V D.C SYSTEM - SUBSTATION SERVICES SUPPLY

1.1 110 V Battery Units

1.1.1 Manufacturer


1.1.3 Number of battery units

2

1.1.4 Type of cell

Nickel-Cadmium

1.1.5 Operating voltage per cell

V

1.1.6 Number of cells

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 − 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 %



SCHEDULE D15 – DC SYSTEM - Cont


− 1 hour rate % − 30 minute rate

%

1.1.12 Maximum charging voltage per cell

V

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 Number of stands

1.1.25 Number of tiers

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

mm2 mm2

mm2 mm2

1.1.27 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

1.1.30 Anticipated life of electrolyte under actual operating conditions

Years






Years

1.1.32 Operating temperatures: - Normal operation - maximum - minimum

°C °C

- Emergency discharge - maximum - minimum

°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% for each battery

1.2.5 Type

1.2.6 Charging characteristic

1.2.7 Input voltage

V 3 Phase, 380

1.2.8 Input frequency and range

Hz 50 ± 5%

1.2.9 Input power

kVA

1.2.10 Minimum working power factor

1.2.11 Overload range

%

1.2.12 Voltage ripple

%

1.2.13 Ripple frequency

Hz

1.2.14 Means of adjusting output

1.2.15 Details of any forced cooling equipment for chargers

1.2.16 Ambient temperature range

°C

1.2.17 Ambient relative humidity range

%

1.2.18 Mean time between failure (MTBF)

Years





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

mm

1.2.20 Weight

kg

1.2.21 Boost charge maximum permitted constant potential per cell

V

1.2.22 Boost charge maximum permitted current as percentage of 5 hour capacity

%

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

hrs

1.3 Battery Fuse Boxes

1.3.1 Manufacturer



IP 51

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



IP 51

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

1.4.10 Main isolator rating

A

1.4.11 Main fuse rating

A

1.4.12 Single line diagram number





Arrangement drawing number

1.4.13 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

1.4.14 Details of Earth Fault Protection:

− Manufacturer − Type Designation − Brochure number

1.4.15 Details of Undervoltage / Overvoltage Protection:


1.4.16 Instruments

− Manufacturer − Voltmeter (type) − Ammeter (type) − Instruments

Details of Moulded Case Circuit Breakers (MCCBs)

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

(1s)

- Rated breaking capacity - Remote signalling





1.4.17 Details of Miniature Circuit Breakers (MCBs)

− Manufacturer − Type designation − Number of poles − Standards A Yes − Rated current at 50°C kA − Rated short-time withstand current

(1s) kA

− Breaking capacity at − 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



SCHEDULE D15 – DC SYSTEM


1 48 V D.C SYSTEM - SUBSTATION SERVICES SUPPLY

1.1 48 V Battery Units

1.1.1 Manufacturer


1.1.3 Number of battery units

2

1.1.4 Type of cell

Nickel-Cadmium

1.1.5 Operating voltage per cell

V

1.1.6 Number of cells

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 − 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

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 Number of stands

1.1.25 Number of tiers

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

mm2 mm2

mm2 mm2

1.1.27 Method of treating copper connection against corrosion

1.1.28 Method of protecting copper connections against accidental short circuiting


A


Years






A


Years


Years

1.1.34 Operating temperatures: − Normal operation maximum minimum

°C °C

− Emergency discharge maximum minimum

°C °C

1.2 48 V D.C Battery Chargers

1.2.1 Manufacturer



IP 51

1.2.4 Number of chargers

2 x 100% for each battery

1.2.5 Type

Thyristor Controlled

1.2.6 Charging characteristic

1.2.7 Input voltage

V 3 Phase, 380

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:

− float charge V − boost charge

V





1.2.13 Continuous output current range:

− float charge A − boost charge

A

Accuracy of output voltage

%

1.2.14 Overload range

%

1.2.15 Voltage ripple

%

1.2.16 Ripple frequency

Hz

1.2.17 Means of adjusting output

1.2.18 Details of any forced cooling equipment for chargers

1.2.19 Ambient temperature range

°C

1.2.20 Ambient relative humidity range

%

1.2.21 Mean time between failure (MTBF)

Years

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

mm

1.2.23 Weight

kg

1.2.24 Boost charge maximum permitted constant potential per cell

V

1.2.25 Boost charge maximum permitted current as percentage of 5 hour capacity

%

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

hrs

1.3 Battery Fuse Boxes

1.3.1 Manufacturer



IP 51

1.3.4 Fuse rated current at 50oC

1.3.5 Remote signalling

yes





1.4 48 V D.C. Switchboards

1.4.1 Manufacturer



IP 51

1.4.4 Standards

IEC 60439

1.4.5 Rating voltage

V 48

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

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:






1.4.16 Details of Undervoltage / Overvoltage Protection:


1.4.17 Instruments

− Manufacturer − Voltmeter (type) − Ammeter (type) − Instruments

Details of Moulded Case Circuit Breakers (MCCBs) − Manufacturer − Type designation − Number of poles − Standards − Rated current at 50°C − Rated short-time withstand current

(1s) − Rated breaking capacity − Remote signalling

A

kA

kA

Yes

1.4.18 Details of Miniature Circuit Breakers (MCBs)

− Manufacturer − Type designation − Number of poles − Standards A Yes − Rated current at 50°C kA − Rated short-time withstand current

(1s) kA

− Breaking capacity at − Remote signalling


Yes


Yes



SCHEDULE D16 - 220 V AC UNINTERRUPTIBLE POWER SUPPLY

Data

Unit Required Offered

1 GENERAL

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

− 48 V DC / 220 V AC inverters

yes

− static interrupters and transfer switches

yes

− 220/220 V single phase isolating by-pass transformer

yes

− manual by-pass switch

yes

− UPS distribution board yes

2 INVERTER

2.1 Manufacturer



IP51

2.4 Rated output power VA min 1200 (to be confirmed by calculation)

2.5 Rated input voltage and range

V±%

2.6 Rated input current

A

2.7 Rated output voltage

V

2.8 Steady state voltage variation

%

2.9 Rated output current

A

2.10 Rated output frequency

Hz

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 %



SCHEDULE D16 - 220 V AC UNINTERRUPTIBLE POWER SUPPLY - Cont

Data


2.15 Radio frequency interference (RFI) classification

2.16 Output voltage rise time on turn-on

ms

2.17 Output voltage decay time on turn-off

ms

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

− 1 cycle % − 0.1 s % − 1 s

%

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

A detailed description of offered static switch with data and diagram to be provided

4 ISOLATION BY-PASS TRANSFORMER

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



SCHEDULE D16 - 220 V AC UNINTERRUPTIBLE POWER SUPPLY - Cont

Data


4.7 Protection class

IP

Dimensions overall

mm

Total weight kg 5 MANUAL BY-PASS SWITCH

5.1 Manufacturer



A

6 DISTRIBUTION BOARD

6.1 Manufacturer



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 − Standards

− Rated current at 50oC A − Rated breaking capacity kA − Remote signalling


yes


yes



SCHEDULE D17 – 132/11 KV POWER CABLES

132 kV Power Cables Unit Data Required Offered 1 GENERAL

1.1 Name of manufacturer

1.2 Place of manufacture

1.3 Manufacturers type or drawing reference number

1.4 Circuit rating required

MVA

1.5 Constructional and Testing standards

Standard(s) to which cable complies 1.6 General description of cable

Voltage designation Uo/U(Um) kV Number of cores one Conductor size mm2 Conductor material aluminium Type of insulation XLPE Type of metal screen/sheath lead Type of armour Type of oversheath

MDPE

1.7 Year of first commercial operation of cable type 2 CONSTRUCTIONAL FEATURES

2.1 Conductor

Material aluminium Nominal cross-section mm2 Type of conductor Overall diameter mm Water blocking method Semi conducting binder tape yes/no 2.2 Conductor screen

Type of material Extruded semi conductive,

cross-linkable, fully bonded

Nominal thickness mm 2.3 Insulation

Material XLPE Thickness: Minimum average mm Thickness: Minimum at a point mm Nominal overall diameter mm



SCHEDULE D17 – 132/11 KV POWER CABLES - Cont

132 kV Power Cables Unit Data Required Offered 2.4 Insulation screen


cross-linkable

Nominal thickness mm 2.5 XLPE Manufacturing Methods

- Extrusion line type e.g. CCV - Single pass, triple extrusion yes/no - Curing method - Cooling method 2.6 Bedding (if applicable)

Type and material 2.7 Metallic screen on each core

Type and material copper wire or tape

Nominal thickness mm Nominal diameter over the screen mm 2.8 Bedding layer

Type and material Nominal thickness mm Minimum thickness mm 2.9 Armour

Nominal diameter under the armour mm Type and material Armour wire diameter or dimensions of strip mm 2.10 Protective anti-corrosion external sheath covering

Type and material MDPE Colour Nominal thickness mm Minimum thickness mm Termite resistant yes/no yes Type of anti-termite protection 2.11 Nominal overall cable diameter mm 2.12 Weight of completed cable kg/m




132 kV Power Cables Unit Data Required Offered 3 CURRENT RATINGS

3.1 Maximum continuous rating, direct-buried, assuming:

Ground temperature at burial depth of 35oC Soil thermal resistivity of 2.5K.m/W Depth of laying 0.8m Thermally independent of other cable circuits trefoil touching (solid bonded) A flat formation spaced at one cable diameter (single

point bonded) A

Calculation Method

IEC 60287

3.2 Maximum continuous rating, in single way ducts, assuming:

Ground temperature at burial depth of 35oC Soil thermal resistivity of 2.5K.m/W Depth of laying 0.8m Thermally independent of other cable circuits trefoil touching (solid bonded) A flat touching formation (single point bonded) A Calculation Method

IEC 60287

3.3 Maximum continuous rating, in-air, assuming:

Air temperature (in shade) of 50 oC Thermally independent of other cable circuits trefoil touching (solid bonded) A flat formation spaced at one cable diameter (single

point bonded) A

Calculation Method

IEC 60287

3.4 Maximum permissible conductor temperature for continuous operation

oC

3.5 Conductor short circuit capacity

Short circuit current kA 40 Duration s 3 Permissible maximum temperature

oC 250

3.6 Screen / armour short circuit capacity

Short circuit current kA Duration s 3 Permissible maximum temperature oC 200 4 ELECTRICAL CHARACTERISTICS

4.1 DC resistance of conductor at 20˚C Ω/m




132 kV Power Cables Unit Data Required Offered 4.2 AC resistance of conductor at 50 Hz and maximum

conductor temperature

Ω/m

trefoil touching (solid bonded) Ω/m flat formation (single point bonded)

Ω/m

4.3 Positive Sequence Resistance of cable at 50 Hz

Ω/m


Ω/m

4.4 Positive Sequence Reactance of cable at 50 Hz

Ω/m


Ω/m

4.5 Zero Sequence Resistance of cable at 50 Hz in trefoil touching formation (solid bonded)

Ω/m

4.6 Zero Sequence Reactance of cable at 50 Hz in trefoil touching formation (solid bonded)

Ω/m

4.7 Capacitance per core pF/m 5 LOSSES

5.1 Total losses per three phase circuit when operating at nominal voltage and 50Hz and at the current ratings stated in Item 2 :

W/m

laid direct in trefoil touching (solid bonded) W/m laid direct in flat formation (single point bonded)

W/m

in ducts in trefoil touching (solid bonded) W/m in ducts in flat touching formation

single point bonded) W/m

in air in trefoil touching (solid bonded) W/m in air in flat formation (single point bonded)

W/m

6 INSTALLATION DATA

6.1 Minimum cable bending radius when laid:

During installation mm Adjacent to joints and terminations mm 6.2 Minimum internal diameter of pipes or ducts

mm

6.2 Maximum permissible pulling force of total cable

kN




132 kV Power Cables Unit Data Required Offered 7 COMMISSIONING TESTS

7.1 Recommended tests after all terminating and jointing has been completed but before connection to the system.




11 kV Power Cables Unit Data Required Offered 1 GENERAL

1.1 Name of manufacturer

1.2 Place of manufacture

1.3 Manufacturers type or drawing reference number

1.4 Circuit rating required

MVA

1.5 Constructional and Testing standards

Standard(s) to which cable complies 1.6 General description of cable

Voltage designation Uo/U(Um) kV Number of cores one Conductor size mm2 Conductor material copper Type of insulation XLPE Type of metal screen/sheath Type of armour Type of oversheath

1.7 Year of first commercial operation of cable type 2 CONSTRUCTIONAL FEATURES

2.1 Conductor

Material Copper Nominal cross-section mm2 Type of conductor Overall diameter mm Water blocking method Semi conducting binder tape yes/no 2.2 Conductor screen


cross-linkable, fully bonded

Nominal thickness mm 2.3 Insulation

Material XLPE Thickness: Minimum average mm Thickness: Minimum at a point mm Nominal overall diameter mm




11 kV Power Cables Unit Data Required Offered 2.4 Insulation screen


cross-linkable

Nominal thickness mm 2.5 XLPE Manufacturing Methods

- Extrusion line type e.g. CCV - Single pass, triple extrusion yes/no - Curing method - Cooling method 2.6 Bedding (if applicable)

Type and material 2.7 Metallic screen on each core

Type and material copper wire or tape

Nominal thickness mm Nominal diameter over the screen mm 2.8 Bedding layer

Type and material Nominal thickness mm Minimum thickness mm 2.9 Armour

Nominal diameter under the armour mm Type and material Armour wire diameter or dimensions of strip mm 2.10 Protective anti-corrosion external sheath covering

Type and material MDPE Colour Nominal thickness mm Minimum thickness mm Termite resistant yes/no yes Type of anti-termite protection 2.11 Nominal overall cable diameter

mm

2.12 Weight of completed cable

kg/m




11 kV Power Cables Unit Data Required Offered 3 CURRENT RATINGS

3.1 Maximum continuous rating, direct-buried, assuming:

Ground temperature at burial depth of 35oC Soil thermal resistivity of 2.5K.m/W Depth of laying 0.8m Thermally independent of other cable circuits trefoil touching (solid bonded) A flat formation spaced at one cable diameter (single

point bonded) A

Calculation Method

IEC 60287

3.2 Maximum continuous rating, in single way ducts, assuming:

Ground temperature at burial depth of 35oC Soil thermal resistivity of 2.5K.m/W Depth of laying 0.8m Thermally independent of other cable circuits trefoil touching (solid bonded) A flat touching formation (single point bonded) A Calculation Method

IEC 60287

3.3 Maximum continuous rating, in-air, assuming:

Air temperature (in shade) of 50 oC Thermally independent of other cable circuits trefoil touching (solid bonded) A flat formation spaced at one cable diameter (single

point bonded) A

Calculation Method

IEC 60287

3.4 Maximum permissible conductor temperature for continuous operation

oC

3.5 Conductor short circuit capacity

Short circuit current kA 50 Duration s 1 Permissible maximum temperature

oC 250

3.6 Screen / armour short circuit capacity

Short circuit current kA Duration s 3 Permissible maximum temperature oC 200 4 ELECTRICAL CHARACTERISTICS

4.1 DC resistance of conductor at 20˚C Ω/m




11 kV Power Cables Unit Data Required Offered 4.2 AC resistance of conductor at 50 Hz and maximum

conductor temperature

Ω/m


Ω/m

4.3 Positive Sequence Resistance of cable at 50 Hz

Ω/m


Ω/m

4.4 Positive Sequence Reactance of cable at 50 Hz

Ω/m


Ω/m

4.5 Zero Sequence Resistance of cable at 50 Hz in trefoil touching formation (solid bonded)

Ω/m

4.6 Zero Sequence Reactance of cable at 50 Hz in trefoil touching formation (solid bonded)

Ω/m

4.7 Capacitance per core pF/m 5 LOSSES

5.1 Total losses per three phase circuit when operating at nominal voltage and 50Hz and at the current ratings stated in Item 2 :

W/m

laid direct in trefoil touching (solid bonded) W/m laid direct in flat formation (single point bonded)

W/m

in ducts in trefoil touching (solid bonded) W/m in ducts in flat touching formation

(single point bonded) W/m

in air in trefoil touching (solid bonded) W/m in air in flat formation (single point bonded)

W/m

6 INSTALLATION DATA

6.1 Minimum cable bending radius when laid:

During installation mm Adjacent to joints and terminations mm 6.2 Minimum internal diameter of pipes or ducts

mm

6.2 Maximum permissible pulling force of total cable

kN




11 kV Power Cables Unit Data Required Offered 7 COMMISSIONING TESTS

7.4 Recommended tests after all terminating and jointing has been completed but before connection to the system.



SCHEDULE D18 - LV CABLES

Data LV Cables Unit Required Offered

1 380 VOLT POWER CABLES

1.1 Manufacturer

1.2 Cable type

Cu/XLPE/ SWA/LSOH

1.3 Standards

IEC 60189, 60227, 60228, 60287, 60724, 60811,

60885. BS 6724, BS EN 50265

1.4 Rated voltage

V 600/1000


VAC/min 4000

1.6 Conductor − Cross sectional area − Material: copper − Design (stranded, sectoral, etc.) − Overall dimensions − No. of Cores

mm2

mm

min 2.5

Cu Stranded

1.7 Insulation

1.8 Fillers − Material: polypropylene

1.9 Armour bedding − Type − Nominal thickness

mm

1.10 Armour − Type of wire − Number of wire − Diameter of wire

No. mm

1.11 Outer covering − Material − Minimum average thickness

mm

LSOH



SCHEDULE D18 - LV CABLES - Cont


1.12 Completed cable − Overall diameter − Weight per metre − Maximum drum length

mm kg m

*

1.13 Cable drums − Overall diameter − Width − Weight loaded

m m kg

*

1.14 Continuous current carrying capacity based on the conditions specified: Laid in the ground − One Circuit − Two Circuits − Three Circuits Drawn into ducts − One Circuit − Two Circuits − Three Circuits In air − One Circuit at 50°C

A A A

A A A

A

*

1.15 Maximum conductor temperature

oC

90

1.16 Conductor short circuit current

Carrying capacity for one second, cable loaded as above prior to short circuit and final conductor

Temperature of

KA

oC

1.17 Minimum radius of bend around which cable can be laid − Laid direct − In ducts − In air

m m m





1.18 Ducts − Nominal internal diameter of pipes or

ducts through which cable may be pulled

mm

1.19 Maximum DC resistance − Per km of cable at 20oC of conductor

ohm

*

1.20 Maximum AC resistance − Of conductor per km of cable at

maximum conductor temperature

ohm

*

1.21 Insulation resistance − per km of cable per core

Mega ohm


* The tenderer may provide a table of data for each of the cables offered.


2 MULTICORE CONTROL CABLES

2.1 Manufacturer

2.2 Cable type

2.3 Standards

IEC 60189, 60227, 60228, 60287, 60724, 60811,

60885. BS 6724, BS EN 50265

2.4 Rated Voltage

V 600/1000


V AC/min 4000

2.6 Cores − Number of cores

No

2, 3, 4,7, 12, 19,

27, 37





2.7 Conductor − Cross sectional area: annealed copper− Material

mm2

2.8 Insulation − Thickness nominal − Minimum

mm mm

XLPE

2.9 Armour bedding − Type − Nominal thickness

mm

LSOH

2.10 Armour − Number of wire: − Diameter of wire

No. mm

2.11 Outer covering − Material: − Minimum average thickness

mm

LSOH

2.12 Completed cable − Overall diameter − Weight per metre − Maximum drum length

mm kg m

* * *

2.13 Mean electrostatic capacity − of each conductor to earth per km − of each core at 20°C

pF

*

2.14 Maximum DC resistance − per km of each core at 20°C max. − 1.5mm2 − 2.5mm2

ohm ohm

2.15 Minimum radius of bend round which cable can be laid

mm







* The tenderer may provide a table of data for each of the cables offered.



SCHEDULE D19 - PROTECTION SYSTEM

General Protection Requirements Unit Data Required Offered 1 OPERATING PERAMETERS

1.1 Auxiliary voltage range (Vn = 110Vdc) Vdc 77→150

1.2 Input frequency range (50Hz nominal) Hz 47.5→52.5

2 TYPE TESTS

2.1 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

2.2 Relative Humidity

Operation at 93% Yes

Tested to IEC 60068-2-78 with severity class 56 days Yes

2.3 Enclosure

IEC 60529 IP50 Yes

2.4 Mechanical Environment

Vibration IEC 60255-21-1 Yes Shock and bump IEC 60255-21-2 Yes Seismic IEC 60255-21-3 Yes

2.5 Insulation

Rated insulation

1000 V high impedance protection CT inputs

250 V for other circuits Yes

1000 V open contact withstand Yes

Dielectric Tests

IEC 60255-5 – Series C of table 1 Yes

Impulse voltage

IEC 60255-5 test voltage 5 kV Yes



SCHEDULE D19 - PROTECTION SYSTEM - Cont

General Protection Requirements Unit Data Required Offered 2.6 Electromagnetic Compatibility

1 MHz Burst disturbance tes

IEC 60255-22-1 severity class III

Yes

Electrostatic Discharge IEC 60255-22-2 severity class III

Yes

Radiated Electromagnetic Field Disturbance

IEC 60255-22-3 severity class III

Test method A, 27MHz through 500MHz

Yes

Electromagnetic Emissions

IEC 60255-25

Yes

Fast Transient Disturbance

IEC 60255-22-4 severity level IV

As appropriate




Distance Protection Unit Data Required Offered 1 MANUFACTURER

2 TYPE REFERENCE

3 RELAY DESIGN (MICROPROCESSOR BASED, NUMERICAL)

Numerical

4 DISTANCE PROTECTION REQUIREMENTS

4.1 3 zone ph-ph & ph-E Yes

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

4.3 Operating time <30ms

4.4 Switch On To Fault Yes

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

Yes

4.6 Voltage transformer supervision Yes

4.7 Time delays for all zones Yes

4.8 Zone enable/disable for all zone Yes

4.9 Teleprotection modes PUR/POR/Block (Selectable) Yes

4.10 DEF plain & Blocking modes (Selectable) Yes

4.11 Z1 min and max operating time (mid zone) ms <30

5 OTHER REQUIREMENTS

5.1 Thermal overload, (49) Yes

5.2 Circuit breaker failure. 50BF- (dependent on application) Yes

5.3 Event recording function Yes

5.4 Disturbance recording function Yes

5.5 Fault locator function Yes

5.6 Integral operator interface for local interrogation

Yes

5.7 Programmable scheme logic Yes




Distance Protection Unit Data Required Offered 5.8 User-friendly HMI, Windows based software for relay setting,

relay configuration and event, disturbance and fault record management.

Yes

5.9 Tripping contacts rating Carry continuous 5A Make 30A maximum for 0.2s Break dc 50W resistive 25W inductive(L/R40ms)

Yes

5.10 Self checking facility

Yes

5.11 Integral intertrip send and receive, with external input interface Intertrip send and receive operate time

Yes

6 COMMUNICATIONS

6.1 Protection

Direct optical fibre 1300nm single mode Others (please list)

Yes

6.2 Control

Communication ports (Front/rear etc) Physical links (RS485/Fibre optic) Protocols supported IEC 60870-5-103 Yes others

6.3 TYPE TEST CERTIFICATE PROVIDED

Yes




Feeder Differential Protection Unit Data Required Offered 1 MANUFACTURER

2 TYPE REFERENCE


Numerical

4 FEEDER DIFFERENTIAL PROTECTION REQUIREMENTS

4.1 Fault settings (% of relay rating)

4.2 Minimum current at one feeder end for relay operation at that end:

(a) Phase faults (b) Earth faults

4.3 Minimum current at one feeder end for relay operation at both feeder ends:

(a) Phase faults (b) Earth faults

4.4 Effect of load current on settings given in 3.5, 3.6 above

4.5 Operating time at 5 x setting

45ms

4.6 Maximum primary out-of-zone fault current at which protection is stable

4.7 Insulation level between pilot wires and relay equipment 15 kV

5 PILOT WIRE REQUIREMENTS:

5.1 Number of cores

5.2 Insulation level between cores

5.3 Insulation level between cores and cable sheath

5.4 Any other requirements

6 PILOT WIRE SUPERVISION Check Relay (Setting ranges - Ph F 0.4In – 2.0In, EF 0.2In –0.8In)

Yes

Yes

7 TWO WAY INTERTRIP FUNCTION




Feeder Differential Protection Unit Data Required Offered 8 TRIPPING CONTACTS RATING

Carry continuous 5A Make 30A maximum for 0.2s Break dc 50W resistive 25W inductive (L/R40ms)

9 SELF-MONITORING

10 TYPE TEST CERTIFICATE PROVIDED

Yes




Main Transformer Biased Differential Protection Unit Data Required Offered 1 MANUFACTURER

2 TYPE REFERENCE


numerical

4 BIASED DIFFERENTIAL FUNCTION

4.1 Operation time at 5 times setting

ms <25

4.2 Adjustable bias characteristics

Yes

4.3 Differential current stage Id >>

Yes

4.4 Magnetisation inrush restraint

Yes

4.5 “5th” Harmonic inrush restraint

Yes

4.6 Maximum through fault current for which relay remains stable (multiple of rating)

4.7 CT ratio and vector group compensation

5 RESTRICTED EARTH FAULT FUNCTION

5.1 HV REF

Not used

5.2 LV REF

Not used

5.3 Principle of operation High impedance/Low impedance

High

5.4 Metrosil requirements

5.5 Operation time at 5 times settings

ms <30


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

6.2 Earth fault protection 51N (requirement depending on application)


Yes

6.4 Programmable scheme logic

Yes




Main Transformer Biased Differential Protection Unit Data Required Offered 6.5 User-friendly HMI, Windows based software for relay setting,

relay configuration and event, disturbance and fault record management.

Yes

6.6 Tripping contacts rating Carry continuous 5A Make 30A maximum for 0.2s Break dc 50W resistive 25W inductive (L/R40ms)

6.7 Event recording function

Yes

6.8 Disturbance recording function

Yes

6.9 Fault recording function

Yes

6.10 Self monitoring and alarm facility

6.11 Integral intertrip send and receive

7 COMMUNICATIONS

7.1 Control

7.2 Communication ports (Front/rear etc)

7.3 Physical links (RS485/Fibre optic)

7.4 Protocols supported

• IEC 60870-5-103 Yes • others


Yes




Low Impedance Busbar Protection Including Breaker Failure Unit Data Protection Required Offered 1 MANUFACTURER

2 TYPE REFERENCE

3 RELAY DESIGN (MICROPROCESSOR-BASED, NUMERICAL)

Numerical

State principle of operation, i.e. low impedance

Low Z

4 LOW IMPEDANCE BUSBAR PROTECTION INCLUDING BREAKER FAILURE PROTECTION FUNCTIONS

4.1 Integral check zone feature (state principle of operation)

Yes

4.2 Distributed Bay Modules and Central Unit (Y/N)

Yes

4.3 Maximum number of Bays

4.4 Isolator replica

4.5 CT saturation detector and stabilisation

4.5 Integral CT supervision

4.6 CT matching functions

4.7 Phase segregated protection

4.8 Sensitivity

(a) Phase faults A sec’y (b) Earth faults

A sec’y

4.9 Operating time at 5 x fault setting

ms 30

4.10 Two stage Circuit Breaker Failure Adjustable current setting Adjustable time delays per stage

Yes


5.1 User-friendly HMI, Windows based software for relay setting, relay configuration and event, disturbance and fault record management.

Yes





Low Impedance Busbar Protection Including Breaker Failure Unit Data Protection Required Offered 5.3 Event recording function

Yes

5.4 Disturbance recording function

Yes

5.5 Self monitoring and alarm facility

6 COMMUNICATIONS

6.1 Bay to central Module communication

f.o.


Yes

7 CONTROL






Yes




Multi-Functional Overcurrent & Earth Fault Protection Unit Data Required Offered 1 MANUFACTURER

2 TYPE REFERENCE


Numerical

4 MULTI-FUNCTIONAL OVERCURRENT & EARTH FAULT PROTECTION FUNCTIONS

4.1 Number of phase CT inputs

4.2 Number of earth fault CT inputs

4.3 Standard, Very and Extreme Inverse and definite time characteristics curves conforming to IEC 60255

Yes

4.4 Number of inverse overcurrent functions (per phase)

4.5 Number of high set overcurrent functions (per phase)

4.6 Number of low set overcurrent functions (per phase)

4.7 Number of inverse earth fault functions

4.8 Number of high set earth fault functions

4.9 Number of low set earth fault functions

4.10 Number of group settings

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

Yes

4.12 Operating time at 5 x setting when configured for REF

ms 30

4.13 Suitable for Blocked Overcurrent busbar protection scheme

Yes

5 OTHER FUNCTIONS PROVIDED • Thermal overload 49 • Directional OC&EF

Y/N Y/N

5.1 Number of output relays • Rated for tripping • Rated for control and alarm

5.2 Integral metering functions

Yes

5.3 Opto-isolator inputs

Yes




Multi-Functional Overcurrent & Earth Fault Protection Unit Data Required Offered 5.4 Programmable scheme logic

Yes

5.5 Event and Fault recording functions

5.6 Self-monitoring facility


Yes


6 COMMUNICATIONS


Yes

7 CONTROL






Yes




Multi-Functional Directional Overcurrent & Earth Fault Protection Unit Data Required Offered 1 MANUFACTURER

2 TYPE REFERENCE


Numerical

4 MULTI-FUNCTIONAL DIRECTIONAL OVERCURRENT & EARTH FAULT PROTECTION FUNCTIONS

4.1 Number of phase CT inputs

4.2 Number of earth fault CT inputs

4.3 Three phase VT input

Yes

4.4 Method of determining zero sequence voltage • Broken delta VT input • Derived mathematically

Y/N Y/N

4.5 Standard, Very and Extreme Inverse and definite time characteristics curves conforming to IEC 60255

Yes

4.6 Number of inverse DOC overcurrent functions (per phase)

4.7 Number of high set DOC functions (per phase)

4.8 Number of low set DOC functions (per phase)

4.9 Number of inverse DEF functions

4.10 Number of high set DEF functions

4.11 Number of low set DEF functions

4.12 Number of group settings

5 OTHER FUNCTIONS PROVIDED

5.1 • Non-directional overcurrent 50/51

Y/N

5.2 • Non-directional earth fault 50 N/51 N

Y/N

5.3 • Thermal overload 49

Y/N

5.4 • Suitable for Blocked Overcurrent busbar protection scheme




Multi-Functional Directional Overcurrent & Earth Fault Protection Unit Data Required Offered 5.5 • Earth fault element suitable of high impedance REF

(with external resistor)

5.6 Number of output relays • Rated for tripping • Rated for control and alarm

5.7 Integral metering functions

Yes

5.8 Opto-isolator inputs

Yes


Yes

5.10 Event and Fault recording functions

5.11 Self-monitoring facility


Yes


6 COMMUNICATIONS


Yes

7 CONTROL




• IEC 60870-5-103 Yes • Others


Yes




Differential Protection and Back-Up Distance Unit Data Required Offered 1 MANUFACTURER

2 TYPE REFERENCE


Numerical

4 DIFFERENTIAL PROTECTION REQUIREMENTS

4.1 Phase segregated protection

Yes

4.2 Ratio and Vector correction for CTs

Yes

4.3 Adjustable biased differential protection characteristic

Yes

4.4 Sensitivity:

- For phase faults - For earth faults

4.5 Operating time

ms <30

5 DISTANCE PROTECTION REQUIREMENTS

5.1 Zone ph-ph & ph-E

Yes

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

5.3 Operating time

<30ms

5.4 Switch On To Fault

Yes

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

Yes

5.6 Voltage transformer supervision

Yes

5.7 Time delays for all zones

Yes

5.8 Zone enable/disable for all zones

Yes


6.1 Thermal overload, 49 – (requirement if cable over-temperature unsuitable for tripping)

Yes

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

Yes

6.3 Event recording function

Yes

6.4 Disturbance recording function Yes




Differential Protection and Back-Up Distance Unit Data Required Offered 6.5 Fault locator function

Yes


Yes


Yes


Yes

6.9 Tripping contacts rating Carry continuous 5A Make 30A maximum for 0.2s Break dc 50W resistive 25W inductive(L/R40ms)

Yes

6.10 Self checking facility

Yes

6.11 Integral intertrip send and receive, with external input interface

Yes

7 COMMUNICATIONS

7.1 Protection

Direct optical fibre 1300nm single mode

Yes

7.2 Control

Communication ports (Front/rear etc)

Physical links (RS485/Fibre optic)

Protocols supported

IEC 60870-5-103 Yes others 8 TYPE TEST CERTIFICATE PROVIDED

Yes




Restricted Earth Fault Protection Unit Data Required Offered 1 MANUFACTURER

2 TYPE REFERENCE

3 RELAY DESIGN (MICROPROCESSOR-BASED, NUMERICAL, E-M)

Numerical

4 RESTRICTED EARTH FAULT PROTECTION FUNCTIONS

4.1 Estimated minimum fault setting (% of CT rating)

%

4.2 Operating time at 5 x setting

ms

4.3 State principle of operation,

• H = high impedance • L = low impedance

4.4 Metrosils provided

4.5 Self monitoring (excluding EM)

Yes



4.8 Communications (numerical relays)


Yes

5 CONTROL




• IEC 60870-5-103 • others

Yes

6 TYPE TEST CERTIFICATE PROVIDED Yes




Trip Circuit Supervision Unit Data Required Offered 1 MANUFACTURER

2 TYPE REFERENCE

3 RELAY DESIGN (MICROPROCESSOR, BASED NUMERICAL)

Numerical

4 TRIP CIRCUIT SUPERVISION FUNCTIONS

4.1 Operating time

ms

4.2 Supervision of the whole trip circuit with CB open and closed.

Yes

4.3 Relay operated indicator

Yes


Yes




Multi-Contact Tripping Relays Unit Data Required Offered 1 MANUFACTURER

2 TYPE REFERENCE

3 MULTI-CONTACT TRIPPING RELAYS FUNCTIONS

3.1 Operating time

ms <12

3.2 Is relay mechanically latched or self resetting?

3.3 Method used to reset latched relay (hand or electrical)

3.4 Burden at rated voltage

3.5 Minimum voltage at which reliable operation occurs


3.7 Relay operated indicator type


Yes



SCHEDULE D20 - SUBSTATION CONTROL SYSTEM

Substation Control System Unit Data Required Offered 1 SUBSTATION CONTROL SYSTEM Yes

2 MASTER CONTROL UNIT

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

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




SCHEDULE D20 - SUBSTATION CONTROL SYSTEM - Cont

Substation Control System Unit Data Required Offered 2.2.2 Model Yes

2.2.3 Processor

2.2.4 Type



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 DCC Main IEC 60870-5-101 Yes

2.2.18 DCC Alt IEC 60870-5-101 Yes

2.2.19 NCC IEC 60870-5-104 Yes

2.2.20 DCC IEC 60870-5-104 Yes

2.2.21 Communication Protocols in Substation

2.2.22 NCC IEC 60870-5-103 Yes

2.2.23 DCC IEC 60870-5-103 Yes

2.2.24 NCC IEC 60870-5-101 Yes

2.2.25 DCC IEC 60870-5-101 Yes

2.2.26 List other operating Protocols

2.2.28 V.35 interface at 64Kb/s Yes

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





Substation Control System Unit Data Required Offered 2.2.31 Operating temperature range °C


2.2.33 Nominal voltage V dc






2.3 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



2.3.8 Memory size






2.3.14 Optical Storage Yes

2.3.15 Pointer Device


2.3.17 Operator interface screens






Substation Control System Unit Data Required Offered 2.3.20 Nominal voltage V ac






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

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 %





Substation Control System Unit Data Required Offered 2.4.11 Operating frequency Hz



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


2.5.3 Transmission 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

2.5.14 Management 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 %




Substation Control System Unit Data Required Offered 2.6 Individual Elements

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

2.6.2 Manufacturer

2.6.3 Type

2.6.4 Nominal voltage

2.6.5 Power requirements V ac

2.6.6 Range 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)





SCHEDULE D20- SUBSTATION CONTROL SYSTEM - Cont

Substation Control System Unit Data 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)






Bay Control Unit Hardware Unit Data Required Offered 3 BAY CONTROL UNIT HARDWARE

3.1 General Yes


3.1.2 Module designation Yes


3.1.4 Power supply V dc 110

3.1.5 Power 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

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--5

3.3.4 High Voltage impulse test IEC 60255-5

3.3.5 Fast transient disturbance test IEC 61000-4-4 and 60255-22-4




Bay Control Unit Hardware Unit Data Required Offered 3.3.6 Oscillatory transient IEC 61000-4-12

3.3.7 Radiated immunity test IEC 61000-4-6 and 60255-22-3

3.3.8 Electrostatic discharge test IEC 61000-4-2 and 60255-22-2

3.3.9 1 MHz Burst disturbance test to IEC 60255-22-1

3.3.10 Electromagnetic emissions to IEC 60255-25

3.3.11 Emitted interference test IEC 61000-4-3

3.3.12 Mechanical test Compliance

3.3.13 Vibration test IEC 60255-21-1

3.3.14 Shock test IEC 60255-21-2

3.3.15 Seismic test IEC 60255-21-3

3.3.16 Temperature rise test IEC 60068-2-1 and 2-2

3.3.15 Relative humidity test 60068-2-78

3.3.16 Enclosure test to IEC 60529 IP50

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 The reporting functions include:

3.4.7.1 Sequence of Events recording

3.4.7.2 Post – Mortem Review / Fault waveform capture




Bay Control Unit Hardware Unit Data Required Offered

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

3.5 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 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


3.6.7 Type of processor

3.6.8 Word length bit

3.6.9 Clock speed MHz

3.6.10 Kinds of memory used:

3.6.10.1 Type, size and extension capabilities KByte

3.6.10.2 Type, size and extension capabilities Kbytes





Bay Control Unit Hardware Unit Data Required Offered 3.7 Secondary CPU

3.7.1 Manufacturer



3.7.4 Mean - time between failure h



3.7.7 Word length bit

3.7.8 Clock speed MHz

3.7.9 Kinds of memory used:




3.8 Communications




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 Kinds of memory used: B/s

3.8.11 Number and type of communication ports

3.8.12 Meantime between failure h


3.8.14 Communication Interfaces




Bay Control Unit Hardware Unit Data Required Offered 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

3.8.14.4 IEC60870-5-101 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 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



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 Is contact input type configurable as

3.10.5.1 Status and alarms

3.10.5.2 Sequence of events




Bay Control Unit Hardware Unit Data Required Offered 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 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

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





Bay Control Unit Hardware Unit Data Required Offered 3.11.13 Power requirement W

3.12 Command Output Module




3.12.4 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 channel 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





Bay Control Unit Hardware Unit Data Required Offered 3.13.11 Power requirement W

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)

3.15.10 Method of isolation


3.15.12 Input impedance ohm

3.15.13 Type of ADC switching




Bay Control Unit Hardware Unit Data Required Offered 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 Direct AC Connection Voltage



3.17.3 Maximum number of modules processor


3.17.5 Input voltage ranges V ac


3.17.7 Burden on instrument transformer circuit VA



3.17.10 Accuracy %

3.17.11 What calculations are supported?






Bay Control Unit Hardware Unit Data Required Offered 3.17.14 Impulse voltage withstand kV kV

3.18 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




BCU Software Unit Data Required Offered 4 BCU SOFTWARE

4.1 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 Database Updating Program Functions and capabilities

4.3.5 Testing and Diagnostics Programs Functions and capabilities

4.4 Standard Functions Programs

4.4.1 Data Communication Programs: Functions and capabilities

4.4.2 Capability of communication protocol selection

4.4.3 Capability of operating modes selection




BCU Software Unit Data Required Offered

4.5 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 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

4.7.1 Grouping of alarms and events

4.7.2 Maximum number of groups

4.8.0 Supervisory Control Programs: Functions and capabilities

4.8.1 Select before execute

4.8.2 Target check




BCU Software Unit Data Required Offered 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

4.9.6 Time functions




Gateway Software Unit Data Required Offered 5. GATEWAY SOFTWARE

5.1 General Requirements

5.1.1 Database management application

5.1.2 Alarm and Event Grouping

5.1.3 Alarm and Event Separation for NCC and DCC

5.1.4 Alarm and Event storage and remote / local access

5.2 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

5.3 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




Transducers Unit Data Required Offered

6 TRANSDUCERS

6.1 Current transducer.

6.1.1 Manufacturer


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 Voltage transducer

6.2.1 Manufacturer

6.2.2 Type

6.2.3 Number


6.2.5 Input ranges available V




Transducers Unit Data Required Offered 6.2.6 Burden on instrument transformer circuit VA








6.2.14 Auxiliary supply

6.2.15 V range V


6.2.17 Frequency Hz


6.2.19 Permissible continuous input overload %V

6.3 Active Power MW

6.3.1 Manufacturer


6.3.3 Number



6.3.6 Input ranges available

6.3.7 Voltage V

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






Transducers Unit Data Required Offered 6.3.14 Minimum accuracy over working range %





6.3.19 Auxiliary supply if required



6.3.22 Frequency Hz


6.3.24 Permissible continuous input overload

• Voltage %V

• Current %A

6.4 Reactive Power MVArs

6.4.1 Manufacturer


6.4.3 Number




6.4.7 Voltage V

6.4.8 Current A










Transducers Unit Data Required Offered 6.4.15 Response time (0 to 90%) ms







6.4.22 Frequency Hz



• Voltage %V

• Current %A

6.5 Frequency

6.5.1 Manufacturer

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












Transducers Unit Data Required Offered 6.5.16 Power requirements 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


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 %

• Voltage %V

• Current %A

6.7 Combined active and reactive power

6.7.1 Manufacturer




Transducers Unit Data Required Offered 6.7.2 Type

6.7.3 Number

6.7.4 Measurement range


6.7.6 Voltage V ac

6.7.7 Current A








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



• Voltage %V

• Current %A



SCHEDULE D21 - CONTROL, OPERATION, INDICATION AND ALARM CIRCUITS

Item No Device Function Operating supply voltage

Required Provided

1 Gas And/Or Oil Actuated Relay

(a) Alarm (b) Trip

48 V dc 110 V dc

Yes Yes

2 Winding temperature indicator

Alarm Trip Cooler Control

48 V dc 110 V dc 220/380 V ac

HV Yes LV Yes Tertiary Yes

3 Winding temperature indicator remote repeater

Indication HV No LV No Tertiary No

4 Oil temperature indicator

Alarm Trip

48 V dc 110 V dc

Yes Yes

5 Tap-changing equipment

Control Indication

220/380 V ac 48 V dc

Yes Yes

6 Fan failure Alarm 48 V dc Yes

7 Oil flow failure

Alarm 48 V dc Yes

8 Remote electrical indicator to show if units of a group of transformers are in parallel on different tappings

Indication Alarm

48 V dc -

Yes No

9 Transformer “tap change in progress” remote electrical indication

Indication Alarm

48 V dc -

Yes No

10 Transformer “voltage ratio” remote electrical indication

Indication

48 V dc

Yes


SCHEDULE E

TECHNICAL DOCUMENTATION/DRAWINGS AND OPERATING AND MAINTENANCE INSTRUCTIONS

E.1 400kV GIS SUBSTATION – VOLUME 3

SCHEDULE E - TECHNICAL DOCUMENTATION/DRAWINGS AND OPERATING AND MAINTENANCE INSTRUCTIONS

This Schedule details the requirements for drawings, documents, operating and maintenance instructions, samples and models as may be required to describe the Works. SCHEDULE E1 - DRAWINGS ISSUED WITH THE TENDER

The drawings listed below form an integral part of this specification and are to provide a guide regarding the system electrical connection, location and arrangement.

Drawing

Title

1 IQ 18284 E Typical 400/132 kV GIS Substation - Single Line Diagram of 400 kV Switchgear

1 IQ 18285 D Typical 400/132 kV GIS Substation - Single Line Diagram of 132 kV

Switchgear 1 IQ 18286 E Typical 400/132 kV GIS Substation - Single Line Diagram of 400 kV

Substation Protection 1 IQ 18287 E Typical 400/132 kV GIS Substation - Single Line Diagram of 132 kV

Substation Protection 1 IQ 18288 C Typical 400/132 kV Substation - Single Line Diagram of LVAC

Supplies 3 IQ 18289 B Typical 400/132 kV Substation - Single Line Diagram of 110V DC

Supplies 3 IQ 18290 B Typical 400/132 kV Substation - Single Line Diagram of 48V DC

Supplies 3 IQ 18291 D Typical Substation Diagrams - Symbols List 1 IQ 18292 D Typical 400/132 kV GIS Substation - General Arrangement of

Buildings and Roads 1 IQ 18293 D Typical 400/132 kV GIS Substation - Layout and Elevation of

400 kV GIS Switchgear Building 1 IQ 18294 C Typical 400/132 kV GIS Substation - Layout and Elevation of

132 kV GIS Switchgear Building 1 IQ 18295 C Typical 400/132 kV Substation - Layout of Control and Relay

Building 1 IQ 18296 C Typical 400/132 kV Substation - Layout and Elevation of Substation

Store, Workshop and Car Port 2 IQ 18297 C Typical 400/132 kV and 132/33/11(6.6) kV Substation – Layout of

Guard House 1 IQ 18298 C Typical 400/132 kV Substation - Layout of Staff Housing


SCHEDULE E - TECHNICAL DOCUMENTATION/DRAWINGS AND OPERATING AND MAINTENANCE INSTRUCTIONS

SCHEDULE E1 - DRAWINGS ISSUED WITH THE TENDER - Cont

Drawing

Title

1 IQ 18300 B Typical 400/132 kV and 132/33/11(6.6) kV Substation - Fence Details

2 IQ 18303 B Typical 400/132 kV and 132/33/11(6.6) kV Substation - Arrangement of Control Desk

1 IQ 18304 E Typical 400/132 kV and 132/33/11(6.6) kV Substation - Outdoor

Open Terminal Electrical Safety Clearances 1 IQ 18305 B Typical 400/132 kV and 132/33/11(6.6) kV Substation - Road Cross

Sections and Drainage Details 1 IQ 18306 B Typical 400/132 kV and 132/33/11(6.6) kV Substation - Details of

Sanitary Drainage System

SCHEDULE E2 - DRAWINGS REQUIRED WITH TENDER

The Contractor shall submit with this Tender full details to describe the proposal and as a minimum shall include the following information:

(a) General arrangement of the switchyard showing general equipment layout, overall dimensions of equipment bays, and phase-phase and phase-earth clearances where applicable.

(b) Outline drawings of switchgear bays, circuit breakers, disconnect switches, earthing switches and other main plant showing overall dimensions and weights, including details for shipping.

(c) Typical drawings of protection equipment, relay panels, and associated equipment enclosures

(d) General arrangement for transformers and reactors.

(e) Bushings or cable termination details for transformers.

(f) Descriptive information and drawings dealing with tank, core and winding arrangements including type of coils, insulation, use of grading, on-load tap-changing equipment and location of all ancillary devices.

(g) Evidence of Type testing on similar switchgear and transformer units.

The contractor shall include any other drawings, catalogues, descriptions and photographs necessary to present a clear picture of the type and class of equipment being submitted.


SCHEDULE E - TECHNICAL DOCUMENTATION/DRAWINGS AND OPERATING AND MAINTENANCE INSTRUCTIONS - CONT

SCHEDULE E3 - CONTRACT DRAWING REQUIREMENTS

Following award of Contract the Contractor shall submit for approval drawings, which shall be in sufficient detail to show:

1 Substation General Arrangement and Single Line Diagrams

(a) General arrangement at each substation. (These drawings shall give the principal dimensions and positions of the circuit breakers, disconnecting switches, etc.)

(b) Single line diagram of the main high-voltage connections, showing protection and metering circuits.

2 Switchgear and Associated Control and Protection

(a) Section drawings of circuit breakers showing general details of construction.

(b) General arrangement of control and indicating panels.

(c) General arrangement of relay panels.

(d) Typical diagrams of unit protective equipment and busbar zone protection.

(e) General arrangement of battery charging equipment.

(f) General arrangement of auxiliary switchgear.

(g) General arrangement, details and schematic diagram of oil filtering and storage equipment (if any are required).

(h) General arrangement and details of isolating switches and earthing blades.

(j) General arrangement, details and schematic diagram of compressed air system, if required.

(k) Details of bushing, post and suspension insulators.

(m) General arrangement and details of surge arresters and associated surge counters.

(n) Sectional elevation drawings of each type of circuit breaker bay showing positions of current transformers and other apparatus forming an integral part of each unit.

(p) Details and schematic diagram of interlocking.

(q) Complete schematic diagrams of:

(i) Direct current tripping connections;



SCHEDULE E3 - CONTRACT DRAWING REQUIREMENTS – Cont

(ii) Direct current control and indication connections;

(iii) Current transformer connections;

(iv) AC voltage connections for protective equipment, indication and synchronizing;

(v) Connections of electrical interlocking equipment;

(vi) Connections of busbar zone protective equipment.

(r) Complete wiring diagrams.

(s) Details of protective relays, accessories and current transformers including particulars of wiring and drilling dimensions.

(t) Details and arrangements of auxiliary plant and kiosks.

(u) Details of circuit breakers handling equipments.

(v) Details of instrument scales.

(w) Material lists.

(y) Layout and schedule of multi-conductor cables.

(z) Details of transformer fire protection equipment (if any are required).

3 Transformers

(a) The general arrangement and dimensions of the equipment to be supplied under the Contract.

(b) Detail drawings showing core clamping, winding arrangements, tank and wheel detail dimensions, cooler details and control cubicle details.

(c) The weight of each part on all detail drawings.

(d) The nature of the material from which the various parts are to be made and their surface finishes.

(e) The weld details and machining and assembly tolerance of all assemblies.

(f) The manner in which such parts are designed to function.

(g) Name plate details.

(h) Wiring diagrams and catalogue numbers of all electrical equipment.



SCHEDULE E3 - CONTRACT DRAWING REQUIREMENTS – Cont

(j) Complete electrical wiring diagrams.

(k) Complete electrical wiring diagrams.

(m) Material lists of all ancillary equipment - starters, fans, relays, bushings etc.

(n) The location of checks, anchors, grout pockets and the like in structures constructed by others. Such drawings shall be provided not less than six months prior to the scheduled start of construction of the structure effected.

(p) Final issues of all applicable drawings

(q) Drawings, submitted by the Contractor shall be in sufficient detail to show:

(i) The general arrangement and dimensions of the parts and the size of each major part of the equipment to be supplied under the contract.

(ii) The weight of each major part on all detail drawings. The shipping weight and dimensions shall also be given.

(iii) The nature of the material and surface finish from which the various parts are to be made.

(iv) The weld details and machining and assembly tolerance of all assemblies.

(v) The manner in which such parts are designed to function.

(vi) Wiring diagrams and catalogue numbers of all electrical equipment

4 Civil, architectural and building services

Submittals required for are required to fully detail all substation buildings, roads, drainage equipment foundations building serves and air conditioning equipment as specified.

SCHEDULE E4 - CONTRACTOR’S SUBMITTALS - DRAWING AND DESIGN DATA

The Contractor shall submit all drawings, samples and models for approval in sufficient time to permit modifications to be made if such are deemed necessary, and the drawings and samples and models to be re-submitted without delaying the initial deliveries or completion of the Contract Works. The time allowed for the Employer to review and comment on drawings, samples and models shall be agreed.

If the Contractor requires early review of any drawing in order to avoid delay in the completion of the Contract Works, he shall advise the Engineer to such effect when submitting the drawing.



SCHEDULE E4 - CONTRACTOR’S SUBMITTALS - DRAWING AND DESIGN DATA - Cont

The drawing format and the indexing system will be agreed at the first Contract meeting between the Contractor and the Engineer. The number of copies of each drawing or of any subsequent revision to be submitted to the Engineer for review shall be advised to the Contractor by the Engineer.

Drawings, samples and models submitted by the Contractor and approved by the Engineer shall not be departed from without the instruction in writing of the Engineer.

The Engineer reserves the right to request any further additional information that may be considered necessary in order fully to review the Contractor’s drawings.

Any drawing modified from a previously submitted drawing shall bear a new version number. Revised drawings reissued for review shall have at least one copy clearly marked indicating the amendments to the drawing. Revision boxes must be provided giving the date, revision letter and brief description of each drawing.

Any drawing or document submitted for information only shall be indicated as such by the Contractor. Drawings submitted for information only will not be returned to the Contractor unless the Engineer considers that such drawings do need to be reviewed, in which case they will be returned suitably stamped with comments.

Following final review, further copies of the reviewed drawing shall be marked “Issued for Construction” and shall be supplied to the Engineer for distribution and to Site.

All drawings shall be drawn to one of the preferred scales quoted in Table 7 of BS Publication PD6031 and on paper of the appropriate size from the International Series of A sizes.

Except as otherwise specifically approved, all drawings shall be of size not greater than A0 (normally 841 mm x 1189 mm) nor smaller than A4 (normally 210 mm x 297 mm).

All drawings shall be accurately drawn to scale on sheets of specified size and shall be legible. Wording on drawings shall be in English. All units and dimensions shall be in the metric (S.I) system. Symbols shall be in accordance with approved standards. Drawings submitted for approval shall be to scale not less than 1:20. All important dimensions shall be given and the material of which each part is to be constructed shall be indicated.

The Contractor shall be responsible for any discrepancies or errors in or omissions from the drawings, whether such drawings have been approved or not by the Engineer. Approval given by the Engineer to any drawing or sample shall neither relieve the Contractor from his liability to complete the Contract Works in accordance with this Specification and the Conditions of Contract nor exonerate him from any of his guarantees, or relieve the Contractor of responsibility for correctness, nor for results arising from errors or omissions nor for failure in the matter of guarantee, which may become evident during erection or subsequent operation.



SCHEDULE E4 - CONTRACTOR’S SUBMITTALS - DRAWING AND DESIGN DATA - Cont

All drawings, samples and models shall be submitted in accordance with the provisions of this Specification and shall become the property of the Employer.

If revisions are required after a drawing has been submitted, the Contractor shall resubmit the specified number of reproductions to the Engineer.

All drawings submitted by the Contractor shall have the following particulars in the lower right hand corner in addition to the Contractor’s name, date, scale, number and title of the drawing, contract number, substation title and equipment description.

Ministry of Electricity

Baghdad, Iraq

SCHEDULE E5 - INSTALLATION AND MAINTENANCE INSTRUCTIONS

The Contract Price shall be deemed to include illustrated installation and maintenance instructions written in English.

The instructions are to be as simple and clear as possible, fully illustrated with drawings and diagrams as necessary and detailed with part numbers for ordering of replacements. Two copies are required for use of the Engineer during erection work.

A further 6 copies are to be reproduced as a book or books of approximately A4 size and bound into strong black durable imitation leather covers inscribed upon the front generally in the form of the title page to this document except that the references to Specification, Conditions of Contract, drawings, etc, will be replaced by “Installation and Maintenance Instructions”.

The name of the main Contractor, but not that of any subcontractor, may also be inscribed upon the cover after the description of the plant. The name of the Ministry of Electricity shall be inscribed upon the spine.

SCHEDULE E6 - FINAL RECORDS

After completion of work on Site all Contract drawings shall be revised where necessary to show the equipment as installed and two copies of revised drawings shall be submitted for review. A complete set of reviewed records shall be provided comprising, one full size reproducible copy and one full size print. Record drawings shall be endorsed “As Constructed” and shall be correctly titled and carry the Engineer’s review number, Contractor’s drawing number and where appropriate the Ministry of Electricity’s number allocated to the item.



SCHEDULE E6 - FINAL RECORDS - Cont

After final review of the “As Constructed” record drawings the Contractor shall submit two complete sets of records on compact discs, one of which is for the Ministry of Electricity. Electronic copies of the drawings shall be in CAD 2002 format suitable for reproduction on paper using the Engineer’s preferred software packages. Each disc shall provide a comprehensive drawing list containing the drawing number, sheet, revision and title of every drawing. Each single file drawing record shall be self-supporting, complete with unique title and drawing number, without referencing other files. Non-standard items such as fonts, line types, etc should not be used. If compression techniques are applied to files then any software necessary to decompress the files shall be included on the discs. The Contractor shall ensure that all information contained on the discs has been checked for virus contamination. Each compact disc shall be supplied suitably encased and accompanied with printed documentation describing the contents of the compact discs, the formats and software used to compile the discs and the print hardware required to reproduce the record drawings.

Final record copies shall be handed over before the issue of the Taking Over Certificate.


SCHEDULE F

DEVIATIONS FROM THE TECHNICAL SPECIFICATION

F.1 400kV GIS SUBSTATION – VOLUME 3

SCHEDULE F - DEVIATIONS FROM THE TECHNICAL SPECIFICATION

(Information to be provided with Tender) The Tenderer shall set out below a tabulated statement showing clearly section by section compliance and departures from the Specification and details of alternative proposals. The Tenderer will be deemed to have complied with the Specification in all respects and as written unless qualified in this Schedule.

Section Departure from the requirements of the Project Specification

with details of alternative proposals


SCHEDULE G

QUANTITIES AND PRICES

G.1 400kV GIS SUBSTATION – VOLUME 3

SCHEDULE G – QUANTITIES AND PRICES

PREAMBLE

The prices inserted in Schedule G shall include all the requirements in the Invitation to Tender. The quantities, rates and prices in Schedule G shall include all design, testing, inspection, plant, labour, supervision, materials, erection, maintenance, transportation, handling, storage, supply and use of Contractor’s equipment, temporary works, insurance, profit; together with all general risks, liabilities and obligations set out or implied in the Contract.

The cost of items against which the Tenderer has failed to enter a price shall be deemed to be covered in the Tender price. The whole cost of complying with the provisions of the Invitation to Tender shall be included in the items provided in Schedule G and where no items are provided, shall be deemed to be distributed among the rates and prices for related items of work.

G.2 400kV GIS SUBSTATION – VOLUME 3

SCHEDULE G - QUANTITIES AND PRICING - CONT

(Information to be provided with Tender)

This Schedule shall be completed for the Proposal as per the Specifications

Item no.

Description

Qty

Supply, delivery and insurance to

site

Installation, commissioning

and insurance at site

Total Price


SCHEDULE J1

RECOMMENDED SPARES

J1.1 400kV GIS SUBSTATION – VOLUME 3

SCHEDULE J1 - RECOMMENDED SPARES

(Information to be provided with Tender) The Tenderer is required to provide a list of recommended spares for a 5-year period from the end of the Defect Liability Period for the Work. All unit prices quoted shall be valid for any spare parts ordered by the Client in this period.

Main equipment type Part no/description Quantity Unit price


SCHEDULE J2

SPECIAL TOOLS, TEST EQUIPMENT


SCHEDULE J2 - SPECIAL TOOLS, TEST EQUIPMENT

(Information to be provided with Tender)

Details of all special tools and test equipment required should also be provided. All unit prices quoted shall be valid for tools and test equipment ordered by the Client during the Contract Period.

The work to be done under this section consists of the supply, delivery to site and guarantee of all tools and equipment for operation and maintenance of the substations. All tools shall be of the best quality and of the class most suitable for working under the conditions specified. All material used in the tools and equipment shall be new. These shall include, but not necessarily be limited to, the items listed in the following sections.

A lump sum shall be quoted in the Schedule of Prices for all Tools and Equipment, except where separate prices are specifically requested.

Main equipment type

Part no/description Quantity Unit price

Heavy Equipment

(a) Supply two mobile cranes with jib length and lifting capacity suitable for maintenance of all switchgear equipment; in the substation. Provide an optional separate price for this equipment.

(b) Supply two mobile aerial buckets, suitable for inspection and washing of 400 kV substation insulators. Provide an optional separate price for this equipment.

(c) Supply one mobile oil filter plant, suitable for filtration of the main 400 kV transformer oil. Provide an optional separate price for this equipment.

(d) At each substation, supply one set of jacking devices suitable for use in installation or removal of the main system transformers as applicable

(e) Supply one mobile SF6 Gas Handling Plant

Workshop Equipment

(a) Steel work benches, approximately 10 square metres of working surface.

(b) Distilled water plant.


SCHEDULE J2 - SPECIAL TOOLS, TEST EQUIPMENT - CONT

Main equipment type


(c) Drill Press complete with 2 sets of assorted drills.

(d) Bench Grinder, fine and coarse wheels, complete with spare wheels.

(e) Electric Welder, complete with assorted rods.

(f) Moisture absorbing material drying oven

Industrial vacuum cleaner.

(g) Tool racks and boxes as required.

(h) Assorted slings and lifting tackle.

(j) Vices.

Hand Tools

(a) Two sets of flat spanners, in sixes suitable for the equipment supplied.

(b) Two sets of socket spanners, in sizes suitable for the equipment supplied.

(c) Inspection lamps.

(d) Assorted screwdrivers.

(e) Electricians knives.

(f) Hammers

(g) Hacksaws.

(h) Pliers.

(j) Files

(k) Blow torch

(l) Soldering Iron.

(m) One set of taps and dies, in sizes suitable for the equipment supplied.

Special Tools

(a) Earthing and Safety Equipment

(b) 4 sets - 132 kV insulated earthing rods,



Main equipment type


(c) 2 sets - 11 kV insulated earthing rods,

(d) Earthing connections with suitable clamps

(e) One - 132 kV neon indicator,

(f) One - 11 kV neon indicator

(g) One - 33 kV neon indicator.

(h) 2 pairs - Rubber gloves.

(j) 6 - Safety hats,

(k) 6- pairs -. Safety glasses

(l) 2 - Lineman's safety belts

(m) 50 - Warning plates.

(n) 4 - First aid kits.

(p) Sufficient length of white rope to rope off two maintenance areas in the substation.

Test Equipment

(a) One set of Oil Testing Equipment, suitable for sample testing of transformer, reactor and circuit breaker oils.

(b) One AV Primary injection test set

(c) One 5000 Volt, motor-driven Megger insulation tester.

(d) One set of Meters to cover all types of substation maintenance (V meter, Ammeter, W meter, AC and DC).

(e) One AC Secondary injection test set.

(f) One Double Beam oscilloscope, complete with trolley.

(g) Two AVO multimeters, in ever-ready cases.

(h) One 50 C Volt hand driven Megger insulation tester.



Main equipment type


(i) One 1000 Volt hand-driven Megger insulation tester.

(k) Test equipment for protection with necessary transformers, wires, tools, etc.


SCHEDULE J3

TRANSFORMERS AND REACTORS QUANTITIES AND PRICES FOR SPARE PARTS


SCHEDULE J3 - TRANSFORMERS AND REACTORS QUANTITIES AND PRICES FOR SPARE PARTS

This Schedule shall be completed by the Tenderer. Each Tenderer shall in addition to the specified spares, provide details of additional items recommended by him. These items are optional and shall only be included in the definite work on written instructions from the Engineer.

Description Recommended Number for 10 year maintenance period

Price

Autotransformers

400 kV bushings

132 kV bushings

Neutral Air/oil bushings

Set of autotransformer gaskets, complete (400MVA transformer)

Fans with motors, complete

Gas/oil relay (main unit) if similar type otherwise one of each type.

Gas/oil relay (tap changer) if similar type otherwise one of each type.

Oil level gauges if similar type otherwise one of each type.

Oil temperature indicator if similar type otherwise one of each type.

Winding temperature indicators if similar type otherwise one of each type.

Dehydrating breathers

Set of tap changer spares: details of spares offered including diverter switch, motor drive etc to be specified.

Tap position indicators

AVC relay

Fan motor protection relays

Pressure relief device


SCHEDULE J3 - TRANSFORMERS AND REACTORS QUANTITIES AND PRICES FOR SPARE PARTS - CONT

Description Recommended Number for 10 year maintenance period

Price

Contactors of each type

MCBs complete with bases and holders of each rating

Cubicle heaters

Thermostats

400 kV Reactor

400 kV bushings

Sets of shunt reactor gaskets complete

Gas/oil relay

Oil level gauge

Silicon gel breather

Oil temperature indicator

Earthing Transformers

Set of gaskets, complete

Gas/oil relay

Pressure relief device


SCHEDULE K

BUILDING SERVICES

K.1 400kV GIS SUBSTATION – VOLUME 3

SCHEDULE K - BUILDING SERVICES

The Tenderer is to provide the name of the Manufacturer on this sheet against the item of Plant/Equipment to be provided; and provide full details of the Plant/Equipment appended to the Tender.

DATA BUILDING SERVICES

Required Offered 1 LIGHTING AND SMALL POWER

1.1 Distribution Boards:

1.2 Main Switches:

1.3 Luminaires Type / Weather proof outside

1.4 Luminaires Type / For emergency lighting

1.5 Luminaires Type / Explosion proof for battery room

1.6 Columns:

1.7 Earthing and Bonding Materials:

2 FIRE DETECTION SYSTEM

3 FIRE FIGHTING SYSTEM

3.1 Portable Extinguisher CO2 type

3.2 Portable Extinguisher, Dry powder type

3.3 Mobile Extinguisher, Foam Type (Outdoor)


SCHEDULE L

HEATING, VENTILATION AND AIR CONDITIONING

L.1 400kV GIS SUBSTATION – VOLUME 3

SCHEDULE L - HEATING, VENTILATION AND AIR CONDITIONING

The Tenderer is to provide the name of the Manufacturer on this sheet against the item of Plant/Equipment to be provided; and provide full details of the Plant/Equipment appended to the Tender.

DATA HEATING, VENTILATION AND AIR CONDITIONING

Required Offered

1 Split unit air conditioning

2 Battery room axial flow fans

3 Twin fan toilet extract units

4 Switchgear room supply and extract ventilation for high ambient temperature control

5 Switchgear room fresh air supply over pressurization unit

6 Extraction fans

7 Low velocity supply, return, exhaust and fresh air duct of required thickness including all hangers, supports and required accessories

8 Insulation to sheet metal ductwork thickness and type of materials

9 Grilles and diffusers supply, return, all as described in the specification

10 Weather louvres

11 Exhaust louvres

12 Sand filters louvers factory assembled

13 Fire dampers, size, material and type

14 Volume control dampers type and material

15 Filters for fresh air intakes and ahu

16 Automatic control system complete for a/c and ventilating system including control panel

M.1 400kV GIS SUBSTATION – VOLUME 3

SCHEDULE M

GUARANTEED TRANSFORMER (AND REACTOR) LOSSES AND PENALTIES

The Tenderer shall complete the following guarantees based on highest declared rated power at Site conditions.

400/138.6/11kV, 250/250/75MVA, auto transformer (comprising 3x83.33MVA single phase units) as specified. Item Description

Unit Declared value

1 No load losses (NNL) at rated voltage ratio at IEC rating

kW

2 Load losses (LL) at 75°C and rated ONAF power and principal tapping: HV/LV winding at IEC rating

kW

3 Total losses (TL=NNL+LL) kW

250 MVAr 400kV Shunt Reactors where specified

Item Description Unit Declared value

4

No load losses (NNL) at rated voltage ratio at IEC rating

kW

5 Load losses (LL) at 75°C and rated ONAF power and principal tapping: HV/LV winding at IEC rating

kW

6 Total Reactor losses (TL=NNL+LL) kW

1. Loss Evaluation

For the purposes of tender evaluation the 400/138.6kV transformer (and where applicable the 400kV reactor) losses will be capitalized, in the following manner: Transformers No-load loss (NLL) 2932 US$/kW at rated voltage Load loss (LL) 688US$/kW at rated MVA and voltage Reactors No-load loss 2932 US$/kW at rated voltage Capitalisation (PV) Price capital value + NLL + LL

M.2 400kV GIS SUBSTATION – VOLUME 3

2. Penalties A maximum variation of +10% of the total declared losses (TL) is permitted. Any transformer or reactor with losses more than +10% of the Total Loss (TL) declared will be rejected, unless otherwise agreed by the Engineer. For transformers or reactors with total losses within +5% of the declared losses no variation of the contract price will be made. For transformers or reactors where the total losses are between +5% to +10% of the total declared losses the contract price will be reduced by the total capitalised cost of losses in excess of the capitalised cost of the declared guaranteed losses. For any transformer or reactor with total losses less than 100% of the guaranteed losses, no variation of the Contract price will be made.

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