4. SCHEDULES OF TECHNICAL INFORMATION - Kenya …kplc.co.ke/fileadmin/user_upload/kplc09_files/UserFiles/File/7-4... · Type designation 2.3. Type SF6 ... 3.19 Mass

Mombasa – Nairobi 400kV Transmission Line Contract KETRACO/1/6/09 Lot 3

Section VII – Forms and Procedures Page 1 of 77Part 4 – Schedules of Technical Information

4. SCHEDULES OF TECHNICAL INFORMATION



220 kV OPEN TERMINAL SWITCHGEAR UNIT DATA

Required Offered

1. GENERAL

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

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

60815

1.2. Rated voltage kV 245

1.3. System Voltage kV 220

1.4. Rated frequency Hz 50

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

- Phase to earth KVp 1050- Across the isolating distance kVp 1200

1.6. Rated power frequency withstand voltage (at altitude <1000m)- Phase to earth kV 460- Across the isolating distance kV 530

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

1.8. Rated peak withstand current kA 80

1.9. Rated Current - at 40 oC A 2000- at 50 oC (Contractor to confirm by calculation) A

1.10. Material of HV conductor

1.11. Material of contacts

1.12. Minimum factors of safety for switchgear- Busbars or other connections based on elastic

limit2.5

- Complete insulators based on electro-mechanical test

2.5

- Insulator metal fittings based on elastic limit 2.5- Steel structures based on elastic limit of

tension members and on cripping loads of compression members

2.5

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

2.5

1.13. Creepage distance (based on Um) mm/kV 311.14. Seismic factor




Required Offered

2. CIRCUIT BREAKER

2.1. Manufacturer & Place of manufacturing

2.2. Type designation

2.3. Type SF6

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

62271-110, 60376, 60480

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

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

2.7. Rated making current KAp 80

2.8 Rated breaking current kA 31.5Rated breaking current (asymmetrical) KA To IEC 62271-100

- %dc %dc2.9. Rated breaking current under out-of-phase

conditionskA 10

2.10. First phase to clear factor 1.5

2.11 Transient Recovery Voltages TRVs To IEC 62271-100

2.12. Rated capacitive breaking current To IEC 62271-100Rated line charging breaking current A 125Rated cable charging breaking current A 250Rated Single/Back to Back Capacitor bank breaking current

A 400

2.13. Rated small inductive/reactor breaking currents of: To IEC 62271-110- small inductive A 10, 20, 50 and 100- reactor A 306

2.14. Maximum overvoltage factor on any switching duty pu 2.3

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

pu 2.3

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

pu 2.3

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

ms 60

2.18. Opening time (trip initiation to contact separation)- Without current ms- With 100% rated breaking current ms

2.19. Maximum time interval between opening of first ms 3




Required Offered

and last phase of three phase circuit breakers

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

- - -

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

ms

2.22. Making time (energisation of close coil to contact touch)- Without current ms- 100% making current ms

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

ms 3

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

- - -

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

ms

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

10,000

2.27. Electrical contact life in number of operations at:- Rated current -2000 A- Fault current - 31.5 kA 15 to 20- Cumulative ampere rating

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

One

2.29. Type of operating mechanism Motor charged spring operated

2.30. Type of power device (motor charged)- For closing Spring or hydraulic- For opening Spring or hydraulic

2.31. Hand operating facility Yes

2.32. Manual spring release Yes

2.33. Mechanical on/off indicator Yes

2.34. Mechanical spring charge / discharge indication Yes

2.35. Charging time s

2.36. Number of trip coils 2

2.37. Number of close coils 1

2.38. Nominal control and operating voltage V 110 DC




Required Offered

2.39. Nominal heater voltage V 240 AC

2.40. Rated power of trip coil W

2.41. Rated power of close coil W

2.42. Rated motor power W

2.43. Total load of heaters for circuit breaker W

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

2.45. Mass of single phase circuit breaker - - -

2.46 Emergency Trip Facility Yes

3. ISOLATORS

3.1. Manufacturer & Place of Manufacturing


3.3. Type of operating mechanism Motor

3.4. Standards IEC 62271-102,IEC 62271-1

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

A

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

s

3.7 Time from contact separation to extinct of capacitive arc

s

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

s

3.9 Hand operating facility Yes

3.10 Locking arrangement in on/off position Yes

3.11 Nominal control and operating voltage V 110 DC

3.12 Automatic isolation of control supplies when lock off

Yes

3.13. Accessibility to operating mechanism from ground level

Yes


3.15. Rated power of operation coil W




Required Offered

3.16. Rated motor power W

3.17. Total load of heaters for isolator W

3.18. Total mass of three phase isolator complete kg

3.19 Mass of single phase isolator kg

3.20. Contact type

3.21. Type of interlocking

4. EARTHING SWITCH

4.1. Manufacturer & place of manufacturing


4.3. Type of operating mechanism Motor

4.4. Standards IEC 62271-102, 62271-1

4.5. Hand operating facility Yes

4.6. Locking arrangement in on/off position Yes

4.7. Nominal control and operating voltage V 110 DC

4.8. Automatic isolation of control supplies when lock off

Yes

4.9. Accessibility to operating mechanism from ground level

Yes


4.11. Total load of heaters for earthing switch W

4.22. Total mass of earthing switch complete kg

5. CURRENT TRANSFORMER


5.2. Type Post

5.3. Standards IEC 62271-1, 60044-1

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

Note: All Cl PX CTs shall be ISN 1.2 A

5.5. Current transformers Refer to Tender Drawings




Required Offered

- Number of cores- Rated extended primary current 120%- Ratio (TR – turns ratio)

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

- Class I core II core III core IV core

- Knee point voltage (Ek) I core V II core V III core V IV core V

- Exciting current (IE) at Ek

I core mA II core mA III core mA IV core mA

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

Total mass of single phase current transformer complete

kg

6. CAPACITIVE VOLTAGE TRANSFORMERS


6.2. Type Capacitive6.3. Standards IEC 60044-5

6.4. Maximum permissible partial discharge levelUm

pC 10

6.5. Maximum permissible partial discharge level1.2Um /3

pC 5

6.6. Method of suppressing ferroresonance phenomena

6.7. Voltage transformer Refer to Tender Drawings

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

I secondary II secondary




Required Offered

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

- Mass of single phase voltage transformer kg

7. BUSBARS AND CONNECTIONS

7.1 Manufacturer

7.2 Type (flexible or tubular)

7.3 Material

7.4 Short-circuit current rating / duration KA/s

7.5 Normal current rating- at 40oC- at 50oC

AA

7.6 Maximum continuous current rating A

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

mm2

mm

mm

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

mm2

mmmm

7.9 Maximum stress at surface of flexible conductor kV/mm

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

µV

8 POST TYPE INSULATORS

8.1 Manufacturer

8.2 Type designation

8.3 Insulator material

8.4 Number of units in complete post insulator

8.5 Length of each unit mm

8.6 Mass of complete post insulator kg




Required Offered

8.7 Maximum cantilever working load (complete post insulator)

N

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

N

8.9 Power frequency withstand voltage dry: wet kV

8.10 Basic insulation level kVp

8.11 Minimum dry/wet switching surge withstand level kVp

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

µv

9 TENSION AND SUSPENSION INSULATORS

9.1 Manufacturer


9.3 Insulator material

9.4 Number of units in string mm

9.5 Greatest diameter of units mm

9.6 Distance between centres of units mm

9.7 Length of string, overall mm

9.8 Mass of string complete with all fittings kg

9.9 Maximum working load N

9.10 Power frequency withstand voltage of complete string

kV

9.11 Basic insulation level of complete string kVp

9.12 Minimum wet switching surge withstand level of complete string

kVp

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

µv

10. Manufacturer quality system in accordance to ISO 9000, 9001 and 9004

Yes

10.1 Date of issue Latest

10.2 Validity Valid Certificates -Yes

11. Type test certificate to be issued by Yes




Required Offered

independent laboratory or independently witnessed type test certificate to be submitted

PROTECTION AND INDICATION SYSTEM UNIT DATA

Required Offered

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

Manufacturer

Type reference

Relay design (microprocessor based, numerical) Numerical

Auxiliary voltage range (Vn = 110Vdc) Vdc 77150

Input frequency range (50Hz nominal) Hz 47.552.5

Differential protection requirements

Phase segregated protection Yes

Ratio and Vector correction for CTs Yes

Adjustable biased differential protection characteristic Yes

Sensitivity:

- For phase faults

- For earth faults

Operating time ms <30

Distance protection requirements

3 zone ph-ph & ph-E Yes

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

Operating time <30ms

SOTF Yes

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

Yes

Voltage transformer supervision Yes

Time delays for all zones Yes

Zone enable/disable for all zones Yes

Other requirements

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

No

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

Event recording function Yes

Disturbance recording function Yes

Fault locator function Yes

Integral operator interface for local interrogation Yes

Programmable scheme logic Yes

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

Yes

Tripping contacts ratingCarry continuous 5A




Required OfferedMake 30A maximum for 0.2sBreak dc 50W resistive

25W inductive(L/R40ms)

Yes

Self checking facility Yes

Integral intertrip send and receive, with external input interface Yes

Communications

Protection

Direct optical fibre 1300nm single mode Yes

Control

Communication ports (Front/rear etc)

Physical links (RS485/Fibre optic)

Protocols supported

IEC 61850 Yes

others

Type Tests

Atmospheric Environment

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

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

Relative Humidity

Operation at 93% Yes

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

Enclosure

IEC 60529 IP50 Yes

Mechanical Environment

Vibration IEC 60255-21-1 Yes

Shock and bump IEC 60255-21-2 Yes

Seismic IEC 60255-21-3 Yes

Insulation

Rated insulation

1000V high impedance protection CT inputs

250V for other circuits Yes

1000V open contact withstand Yes

Dielectric Tests

IEC 60255-5 – Series C of table 1 Yes

Impulse voltage

IEC 60255-5 test voltage 5kV Yes

Electromagnetic compatibility

1MHz Burst disturbance test,

IEC 60255-22-1 severity class III Yes

Electrostatic Discharge


Radiated Electromagnetic Field Disturbance





Required OfferedTest method A, 27MHz through 500MHz

Electromagnetic Emissions

IEC 60255-25 Yes

Fast Transient Disturbance

IEC 60255-22-4 severity level IV Yes

Type test certificate provided Yes

DISTANCE PROTECTION (21)

Manufacturer

Type reference

Relay design (microprocessor based, numerical) Numerical



Distance protection requirements

3 zone ph-ph & ph-E Yes

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

Operating time <30ms

SOTF Yes

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

Yes

Voltage transformer supervision Yes

Time delays for all zones Yes

Zone enable/disable for all zone Yes

Teleprotection modes PUR/POR/Block Yes

DEF plain & Blocking modes Blk

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

Other requirements

Thermal overload, (49) No

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



Fault locator function Yes




Yes

Tripping contacts ratingCarry continuous 5AMake 30A maximum for 0.2sBreak dc 50W resistive

25W inductive(L/R40ms)

Yes

Self checking facility Yes

Integral intertrip send and receive, with external input interface Yes




Required OfferedIntertrip send and receive operate time

Communications

Protection

Direct optical fibre 1300nm single mode

Others (please list)

Yes

Control



Protocols supported

IEC 61850 Yes

others

Type Tests




Relative Humidity



Enclosure

IEC 60529 IP50 Yes





Insulation

Rated insulation




Dielectric Tests


Impulse voltage








IEC 60255-22-3 severity class III

Test method A, 27MHz through 500MHz

Yes




Required OfferedElectromagnetic Emissions

IEC 60255-25 Yes


LOW IMPEDANCE BUSBAR PROTECTION INCLUDING BREAKER FAILURE PROTECTION

Manufacturer

Type reference

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



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

Integral check zone feature (state principle of operation) Yes

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

Maximum number of Bays

Isolator replica

CT saturation detector and stabilisation

Integral CT supervision

CT matching functions

Phase segregated protection

Sensitivity

1. Phase faults A sec’y

2. Earth faults A sec’y

Operating time at 5 x fault setting ms 30

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

Yes

Other requirements


Yes


25W inductive (L/R40ms)



Self monitoring and alarm facility

Communications

Bay to central Module communication f.o.


Control



Protocols supported

IEC 61850 Yes




Required Offered others

Type Tests




Relative Humidity



Enclosure

IEC 60529 IP50 Yes





Insulation

Rated insulation




Dielectric Tests


Impulse voltage










Yes


IEC 60255-25 Yes




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

Manufacturer

Type reference




Required OfferedRelay design (static, microprocessor-based, numerical) Numerical



Number of phase CT inputs

Number of earth fault CT inputs

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

Yes

Number of inverse overcurrent functions (per phase)

Number of high set overcurrent functions (per phase)

Number of low set overcurrent functions (per phase)

Number of inverse earth fault functions

Number of high set earth fault functions

Number of low set earth fault functions

Number of group settings

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

Yes

Operating time at 5 x setting when configured for REF ms 30

Suitable for Blocked Overcurrent busbar protection scheme Yes

Other functions provided

Thermal overload 49 Y/N

Directional OC&EF Y/N

Number of output relays

Rated for tripping

Rated for control and alarm

Integral metering functions Yes

Opto-isolator inputs Yes


Event and Fault recording functions

Self-monitoring facility


Yes

Tripping contacts rating

Carry continuous 5A

Make 30A maximum for 0.2s

Break dc 50W resistive


Communications


Control



Protocols supported

IEC 61850 Yes




Required Offeredothers

Type Tests




Relative Humidity



Enclosure

IEC 60529 IP50 Yes





Insulation

Rated insulation




Dielectric Tests


Impulse voltage










Yes


IEC 60255-25 Yes




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

Manufacturer

Type reference

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




Required OfferedAuxiliary voltage range (Vn = 110Vdc) Vdc 77150


Number of phase CT inputs

Number of earth fault CT inputs

Three phase VT input Yes

Method of determining zero sequence voltage

Broken delta VT input (Y/N)

Derived mathematically (Y/N)

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

Yes

Number of inverse DOC overcurrent functions (per phase)

Number of high set DOC functions (per phase)

Number of low set DOC functions (per phase)

Number of inverse DEF functions

Number of high set DEF functions

Number of low set DEF functions

Number of group settings

Other functions provided

Non-directional overcurrrent50/51 (Y/N)

Non-directional earth fault 50N/51N (Y/N)

Thermal overload 49 (Y/N)

Suitable for Blocked Overcurrent busbar protection scheme

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

Number of output relays

Rated for tripping

Rated for control and alarm

Integral metering functions Yes

Opto-isolator inputs Yes


Event and Fault recording functions

Self-monitoring facility


Yes


Carry continuous 5A




Communications


Control





Required OfferedPhysical links (RS485/Fibre optic)

Protocols supported

IEC 61850 Yes

others

Type Tests




Relative Humidity



Enclosure

IEC 60529 IP50 Yes





Insulation

Rated insulation




Dielectric Tests


Impulse voltage










Yes


IEC 60255-25 Yes




CONNECTIONS DIFFERENTIAL PROTECTION (87C)

Manufacturer

Type reference




Required Offered

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

Estimated minimum fault setting (% of CT rating) %

Operating time at 5 x setting ms

State principle of operation,

H = high impedance

L = low impedance

Metrosils provided

Self monitoring (excluding EM) Yes



Carry continuous 5A




Communications (numerical relays)


Control



Protocols supported

IEC 61850 Yes

others

Type Tests




Relative Humidity



Enclosure

IEC 60529 IP50 Yes





Insulation

Rated insulation






Required Offered1000V open contact withstand Yes

Dielectric Tests


Impulse voltage










Yes


IEC 60255-25 Yes




SHUNT REACTOR DIFFERENTIAL PROTECTION 87R

Manufacturer

Type reference

Relay design (microprocessor based, numerical) numerical



Biased Differential function

Operation time at 5 times setting ms <25

Adjustable bias characteristics Yes

Differential current stage Id >> Yes

Magnetisation inrush restraint Yes

“5th” Harmonic inrush restraint Yes

Maximum through fault current for which relay remains stable (multiple of rating)CT ratio and vector group compensation

Other requirements




Yes







Required OfferedDisturbance recording function Yes

Fault recording function Yes

Self monitoring and alarm facility

Integral intertrip send and receive

Communications

Control



Protocols supported

IEC 61850 Yes

others

Type Tests




Relative Humidity



Enclosure

IEC 60529 IP50 Yes





Insulation

Rated insulation




Dielectric Tests


Impulse voltage










Yes


IEC 60255-25 Yes





Required OfferedIEC 60255-22-4 severity level IV Yes


TRIP CIRCUIT SUPERVISION

Manufacturer

Type reference

Relay design (Electro-Mech, static, numerical)


Operating time ms

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

Relay operated indicator Yes

Type Tests




Relative Humidity



Enclosure

IEC 60529 IP50 Yes





Insulation

Rated insulation




Dielectric Tests


Impulse voltage










Yes


IEC 60255-25 Yes




Required OfferedFast Transient Disturbance



MULTI-CONTACT TRIPPING RELAYS

Manufacturer

Type reference

Operating time ms <12


Is relay mechanically latched or self resetting

Method used to reset latched relay (hand or electrical)

Burden at rated voltage

Minimum voltage at which reliable operation occurs


Carry continuous 5A




Relay operated indicator type

Type Tests




Relative Humidity



Enclosure

IEC 60529 IP50 Yes





Insulation

Rated insulation




Dielectric Tests


Impulse voltage






Required Offered1MHz Burst disturbance test,







Yes


IEC 60255-25 Yes






SUBSTATION CONTROL SYSTEM UNIT DATA

Required Offered

1.0.0 Substation Control System Yes

2.1.0 Substation Computer

2.1.1 Manufacturer

2.1.2 Model

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

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

2.2.0 Gateway

2.2.1 Manufacturer

2.2.2 Model




Required Offered

2.2.3 Processor

2.2.4 Type


2.2.6 Clock speed (minimum) MHz

2.2.7 Memory size






2.2.13 Communication Protocols To Control Centre(s)

2.2.14 RCC Main IEC 60870-5-101

2.2.15 RCC Alt IEC 60870-5-101

2.2.16 RCC TCP/IP Intranet

2.2.17 RCC IEC 60870-5-104

2.2.18 Communication Protocols in Substation

2.2.19 RCC IEC 61850

2.2.20 List other operating Protocols

2.2.21 Data Communications Interface

2.2.22 V.35 interface at 64Kb/s

2.2.23 X.21 / V.11 interface at 64Kb/s




2.2.27 Nominal voltage V dc









Required Offered

2.3.0 Operator Workstations / HMI

2.3.1 Manufacturer

2.3.2 Model

2.3.3 Literature reference for principle of operation

2.3.4 Processor

2.3.5 Type


2.3.7 Clock speed (minimun) MHz

2.3.8 Memory size






2.3.14 Optical Storage

2.3.15 Pointer Device


2.3.17 Operator interface screens









2.3.26 Operator Desk Yes

2.3.27 Manufacturer Yes

2.3.28 Type of construction

2.3.29 Finish and material of working surfaces

2.3.30 Method of mounting VDUs




Required Offered

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

2.4.0 Colour Visual Display Units (VDUs) Yes


2.4.2 Model Yes


2.4.4 Screen size across diagonal mm

2.4.5 Usable display area mm

2.4.6 Resolution (minimum) pixels

2.4.7 Dot pitch mm


2.4.9 Operating relative humidity range %





2.4.14 Approximate lifetime of monitor under continuous use h



2.5.0 Substation Local Area Network (LAN)

2.5.1 Architecture and Technology


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

2.5.4 Protocols

2.5.5 IEC 60870-5-101




Required Offered

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

2.5.10Physical arrangement - Identify all main elements in the supply including hubs, concentrators, bridges, routers, gateways switches etc. and the number of each

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 %

2.6.0 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

2.7.0 Printers

2.7.1 Logging Printer

2.7.2 Manufacturer

2.7.3 Model





Required Offered

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)



2.7.19 Colour Printers

2.7.20 Manufacturer

2.7.21 Model


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








Required Offered


2.7.36 Max noise level at 1 m dB(A)



3.0.0 Bay Control unit Hardware

3.1.0 General Yes


3.1.2 Module designation Yes

3.1.3 Literature reference for principle of operation Yes

3.1.4 Power supply V dc 110

3.1.5Power requirements

W

3.1.6 Maximum Number of expansion modules

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

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

3.1.9 Local LCD Display

3.1.10 Operating temperature range °C 0 – 50

3.1.11 Operating relative humidity range % 100

3.2.0 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

3.3.0 IEC Standards ( Or Equivalent )

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




Required Offered

3.3.2 EMC Compliance IEC 60255-22-3

3.3.3 Dielectric withstand test IEC 60255-4/-5

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

3.3.5 Fast transient disturbance test IEC 61000-4-4

3.3.6 Oscillatory transient IEC 61000-4-12

3.3.7 Radiated immunity test IEC 61000-4-6

3.3.8 Electrostatic discharge test IEC 61000-4-2

3.3.9 Emitted interference test IEC 61000-4-3

3.3.10 Mechanical test Compliance

3.3.11 Vibration test IEC 60255-21-1

3.3.12 Shock test IEC 60255-21-2

3.3.13 Seismic test IEC 60255-21-3

3.3.14 Temperature rise test IEC 60068-2-2

3.4.0 BCU Functions

3.4.1 The monitoring functions include:

3.4.2 Switching status monitoring (breakers)

3.4.3 Indication & alarm status monitoring

3.4.4 Analogue measurements (currents, voltages, etc.)

3.4.5 Resolution of time tagging ms 1

3.4.6.0 The control functions include:

3.4.6.1 Close / open of circuit breakers

3.4.6.2 Close / Open of isolators / disconnectors

3.4.6.3 Transformer Automatic tap change control

3.4.6.4 Breaker Voltage Synchronisation Check Control

3.4.6.5 Bay interlocking facilities

3.4.7.0 The reporting functions include:

3.4.7.1 Sequence of Events recording

3.4.7.2 Post – Mortem Review / Fault waveform capture

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




Required Offered

3.5.0 BCU Configuration

3.5.1 Number of processors

3.5.2 Main processor

3.5.3 Secondary processors

3.5.4 Communication processor (module)

3.5.5 Type of communication between processors

3.5.6.0 LCD Display and selector Buttons on front of BCU Yes

3.5.6.1 Functionality to include

3.5.6.2 Full control of circuit bay

3.5.6.3 Status of bay plant

3.5.6.4 Circuit active line diagram

3.5.6.5 Power system Measurements

3.5.6.6 Display alarms and events

3.6.0 Processing Units

3.6.1 Main CPU

3.6.2 Manufacturer



3.6.5 Mean - time between failure h

3.6.6 Power requirements W

3.6.7 Type of processor

3.6.8 Word length bit

3.6.9 Clock speed MHz

3.6.10.0 Kinds of memory used:

3.6.10.1 Type, size and extension capabilities KByte

3.6.10.2 Type, size and extension capabilities Kbytes


3.7.0 Secondary CPU

3.7.1 Manufacturer




Required Offered



3.7.4 Mean - time between failure h

3.7.5 Power requirements W


3.7.7 Word length bit

3.7.8 Clock speed MHz

3.7.9.0 Kinds of memory used:




3.8.0 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 Speed of transmission B/s

3.8.11 Number and type of communication ports

3.8.12 Meantime between failure h


3.8.14.0 Communication Interfaces

3.8.14.1IEC60870-5-101 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




Required Offered

3.8.14.5 List all Protocols available at BCU

3.8.15 Local interface for Laptop Computer

3.8.16.0IED 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

3.9.0 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



3.10.0 Digital Input Module




3.10.4 Input voltage V dc

3.10.5.0 Is contact input type configurable as

3.10.5.1 Status and alarms

3.10.5.2 Sequence of events

3.10.5.3 BCD or parallel inputs

3.10.5.4 Pulse accumulator

3.10.5.5 Or any combination of these

3.10.6.0 Standard number of inputs per module:

3.10.6.1 double position




Required Offered

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



3.11.0 Pulse Counting Module

3.11.1 Is this facility incorporated into the digital input module?




3.11.5 Type of counter

3.11.6 Maximum count

3.11.7 Storage and resetting under control of external clock?

3.11.8 Number of inputs per module

3.11.9 Input current mA


3.11.11 Signal range : pulse widths ms



3.12.0 Command Output Module




3.12.4.0 Contact ratings




Required Offered

3.12.4.1 Switched voltage V

3.12.4.2 Switched power VA max

3.12.4.3 Switched current A

3.12.4.4 Range of duration of command output S

3.12.5 Number of two position output channels per module

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

3.12.7 Are welded contacts checked prior to command output?

3.12.8 Are the outputs fused and fuse status monitored?




3.13.0 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



3.14.0 Analogue to digital conversion module





3.14.5 Resolution bits




Required Offered

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


3.15.0 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

3.15.14 Standard number of inputs per module



3.16.0 Analogue Output Module



3.16.3 Number of outputs per module





Required Offered

3.16.5 Output voltage range V

3.16.6 Output current range mA

3.16.7 Type of isolation

3.16.8 Load resistance range ohms

3.16.9 Maximum error over-current ranges %


3.17.0 Direct AC Connection Voltage



3.17.3 Maximum number of modules processor


3.17.5 Input voltage ranges V ac


3.17.7 Burden on instrument transformer circuit VA



3.17.10 Accuracy %

3.17.11 What calculations are supported



3.17.14 Impulse voltage withstand kV kV

3.18.0 Direct AC Connection Current



3.18.3 Maximum number of modules processor


3.18.5 Input current ranges A






Required Offered



3.18.10 Accuracy %

3.18.11 What calculations are supported



3.18.14 Impulse voltage withstand kV kV

4.0.0 BCU Software

4.1.0 GENERAL REQUIREMENTS

4.1.1 Program structure

4.1.2 System software

4.1.3 Standard functions programs

4.1.4 User functions programs

4.2.0 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.)

4.2.6Appropriate protection of software against power failure

4.2.7 Automatic BCU re-start without software down-loading

4.3.0 SYSTEM SOFTWARE

4.3.1 Operating System (Monitor) Functions and capabilities

4.3.2 Calendar program Type, functions and capabilities

4.3.3 Time Synchronization Program Functions and capabilities

4.3.4 Data Base Updating program Functions and capabilities

4.3.5 Testing and Diagnostics Programs Functions and capabilities Yes




Required Offered

4.4.0 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

4.5.0Analogue Measurements, Scanning and Transmission Programs

4.5.1 Capabilities of adjustments

4.5.2 Transducers constants

4.5.3 Periodic transmission/transmission by exception

4.5.4 Automatic checking of A/D-conversion accuracy

4.5.5 Smoothing

4.5.6 Threshold values

4.5.7 Limits

4.5.8 Scan duration (range)

4.5.9 Cycle duration (range) s

4.5.10 Priority of transmission s

4.5.11 Digital Input Data Scanning and transmission Program

4.6.0 Functions and capabilities

4.6.1 Capability of adjustments;

4.6.2 Scan duration (range) ms

4.6.3 Transient time of status information (range)

4.6.4 Cycle duration (range) ms

4.6.5 Debouncing filter s

4.6.6 Suppression of intermediate status information

4.6.7 Time tagging

4.6.8 Transmission mode

4.6.9 Priority of transmission

4.7.0 Alarm and Event handling

4.7.1 Grouping of alarms and events




Required Offered

4.7.2 Maximum number of groups

4.8.0Supervisory Control Programs: Functions and capabilities

4.8.1 Select before execute

4.8.2 Target check

4.8.3 Cancelling control after adjustable time delay

4.8.4 Capability of adjustments:

4.8.5 Duration of output (range) s

4.8.6 Allowed duration of execution (range) s

4.8.7 Sequence of Events programs

4.8.8 Minimal sequence of events time resolution ms

4.8.9 Sequence of events memory capacity

4.8.10 Events time resolution (adjustable range)

4.8.11 Priority of transmission

4.8.12 Post - Mortem Review / Program

4.8.13 Selection of analogues for post-mortem review

4.8.14 Short interval time resolution (adjustable range) s

4.8.15 Long interval time resolution (adjustable range) s

4.9.0 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

5.0.0 GATEWAY SOFTWARE

5.1.0 GENERAL REQUIREMENTS

5.1.1 Database management application

5.1.2 Alarm and Event Grouping




Required Offered

5.1.3 Alarm and Event Separation for NCC and DCC

5.1.4Alarm and Event storage and remote / local access

5.2.0 Capability of:

5.2.1 Gateway program downloading from Control Centre

5.2.2 Application configuration from Control Centre

5.2.3 Remote selection of processing parameters

5.2.4 Selection of communication protocols

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

5.2.6 Appropriate protection of software against power failure

5.2.7 Automatic re-start without software down-loading

5.3.0 SYSTEM SOFTWARE

5.3.1 Operating System (Monitor) Functions and capabilities

5.3.2 Calendar program Type, functions and capabilities

5.3.3 Time Synchronization Program Functions and capabilities

5.3.4 Data Base Updating program Functions and capabilities

5.3.5 Testing and Diagnostics Programs Functions and capabilities

6.0.0 Transducers

6.1.0 Current transducer.

6.1.1 Manufacturer

6.1.2 Type reference

6.1.3 Number

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

6.1.5 Output range mA

6.1.6 Input ranges available A


6.1.8 Insulation level kV

6.1.9 Impulse withstand level kV peak

6.1.10 Minimum accuracy over working range %




Required Offered

6.1.11 Response time (0 to 90%) ms

6.1.12 Mounting details


6.1.14 Operating humidity range %

6.1.15 Auxiliary supply if required

6.1.16 Voltage range V

6.1.17 Power requirements VA

6.1.18 Frequency Hz

6.1.19 Type of overload protection

6.1.20 Permissible continuous input overload %A

6.2.0 Voltage transducer

6.2.1 Manufacturer

6.2.2 Type

6.2.3 Number


6.2.5 Input ranges available V









6.2.14 Auxiliary supply

6.2.15 V range V


6.2.17 Frequency Hz


6.2.19 Permissible continuous input overload %A




Required Offered

6.3.0 Active Power MW

6.3.1 Manufacturer


6.3.3 Number



6.3.6 Input ranges available

6.3.7 Voltage V

6.3.8 Current A

6.3.9 Burden on instrument transformer circuit

6.3.10 Current Transformer (CT) VA

6.3.11 Voltage Transformer (VT) VA








6.3.19 Auxiliary supply if required



6.3.22 Frequency Hz


6.3.24 Permissible continuous input overload

6.3.25 Voltage %V

6.3.26 Current %A

6.4.0 Reactive Power Mvars

6.4.1 Manufacturer




Required Offered


6.4.3 Number




6.4.7 Voltage V

6.4.8 Current A














6.4.22 Frequency Hz



6.4.25 Voltage %V

6.4.26 Current %A

6.5.0 Frequency

6.5.1 Manufacturer

6.5.2 Type

6.5.3 Number

6.5.4 Measurement range Hz




Required Offered


6.5.6 Input ranges available V ac

6.5.7 Burden on instrument VT circuit VA










6.5.17 Frequency Hz


6.5.19 Permissible continuous input overload %V %

6.6.0 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











Required Offered



6.6.17 Frequency Hz


6.6.19 Permissible continuous input overload %

6.7.0 Combined active and reactive power

6.7.1 Manufacturer

6.7.2 Type

6.7.3 Number

6.7.4 Measurement range


6.7.6 Voltage V ac

6.7.7 Current A








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




Required Offered



6.7.27 Voltage %V

6.7.28 Current %A



LV CABLES UNIT DATA

Required Offered

1. L.V. POWER CABLES

1.1. Manufacturer

1.2. Cable type Cu/XLPE/SWA/LSOH

1.3. Standards IEC 60189, 60227, 60228, 60287, 60724, 60811, 60885, 60332.

BS 67241.4. Rated voltage V 600/1000

1.5. Test voltage (1 min) VAC/min 4000

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

mm2

mm

min 2.5Cu

Stranded

1.7. Insulation XLPE

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

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

mmkgm

*

1.13. Cable drums Overall diameter Width Weight loaded

mmkg

*



LV CABLES UNIT DATA

Required Offered

1.14. Continuous current carrying capacity based on the conditions specified:Laid in the ground One Circuit Two Circuits Three CircuitsDrawn into ducts One Circuit Two Circuits Three CircuitsIn air One Circuit at 50C

AAA

AAA

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

mmm

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 Megaohm

1.22. Manufacturer quality assurance according to ISO 9000, 9001 and 9004

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

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

2. MULTICORE CONTROL CABLES

2.1. Manufacturer



LV CABLES UNIT DATA

Required Offered

2.2. Cable type

2.3. Standards IEC 60189, 60227, 60228, 60287, 60332, 60724, 60811, 60885.

BS 67242.4. Rated Voltage V 600/1000

2.5. Test voltage (1 min) V AC/min 4000

2.6. Cores Number of cores No 2, 3, 4,7, 12, 19, 27,

372.7. Conductor

Cross sectional area: annealed copper Material

mm2

2.8. Insulation Thickness nominal minimum

mmmm

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

mmkgm

***

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

pF*

2.14. Maximum DC resistance per km of each core at 20C max.

1.5mm2

2.5mm2ohm

2.15. Minimum radius of bend round which cable can be laid

mm

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

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

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



EARTHING AND LIGHTNING PROTECTION UNIT DATA

Required Offered

1. EARTHING SYSTEM

1.1. Manufacturers

1.2. Standard Applied

The following standards shall apply to the earthing installations and to the accessories: Guide for safety in A.C. substation grounding Earthing system in A.C. installation for rated voltages

above 1000 V

IEEE80 & 81VDE 0141

1.3. Physical Properties of Copper

The most important physical properties of copper used for the earthing conductors: Density kg/dm3 8.89 Electrical resistivity at 20C mm2/m 0.0176 Melting point C 1083 Current density at which the conductor temperature rises

from 50C to 300C in a time of 1 s if all heat is retained in conductor A/mm2 190

1.4. Physical Properties of Lead-Sheathed Copper

The most important physical properties of lead-sheathed copper used for the earth electrodes: Thickness of lead sheath mm 2.0 Electrical resistivity of copper at 20C mm2/m 0.0176 Copper melting point C 1083 Lead melting point C 327 Current density at which the conductor temperature rises

from 40C to 150C in a time of 1 s if all heat is retained in conductor A/mm2 140

1.5. Earthing Conductors

1.5.1. Stranded copper conductors

The following stranded copper conductor will be used as earthing conductors: Cross-section area mm2

Number of wires No. Diameter of each wire mm Conductor diameter mm Density kg/m

Cross-section area mm2

Number of wires No. Diameter of each wire mm Conductor diameter mm

Density kg/m

Cross-section area mm




Required Offered

Number of wires pcs Diameter of each wire mm Conductor diameter mm Density kg/m

1.5.2. Copper Flat Bars

The following copper flat bars will be used as earthing conductors: Cross section area mm2

Dimensions mm x mm Density kg/m

Cross section area mm2


Cross section area mm2


1.5.3. Copper Cables

The following PVC single-core copper cables will be used as earthing conductors: Cross-section area mm2



1.6. Earth Electrodes

1.6.1. Lead-sheathed stranded copper conductors

The following lead-sheathed stranded copper conductor will be used as earth electrodes: Thickness of lead sheath mm Copper cross-section area mm2


Thickness of lead sheath mm Copper cross-section area mm2


Thickness of lead sheath mm Copper cross-section area mm2

Diameter of each wire mm Conductor diameter mm Density kg/m

1.6.2. Earth rod




Required Offered

Manufacturer Length m Diameter mm Material (copper, stainless steel)

1.6.3. Stainless steel electrodes

The following steel flat bars will be used as earth electrodes: Cross-section area dimensions Density

mm2

mm x mmkg/m

1.7. Connections

Mode of Connection in the Earthing Systems: Between earthing conductors and earth electrodes Crossing of earth electrodes

BrazedCompressio

n2. LIGHTNING PROTECTION

2.1. Manufacturers

2.2. Standard Applied: Protection of structures against lightning IEC 62305

Manufacturer Cross-section area mm2

Thickness of lead-sheath mm2.3. Supports

Conductor supports of the lightning protection system Type

2.4. Earth rod

Manufacturer Length m Diameter mm Material (copper, stainless steel)

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



400 kV SHUNT REACTOR UNIT DATA

Required Offered

1. Shunt Reactor

1.1 Manufacturer & Place of manufacturing


1.3 Type Outdoor, Oil Immersed

1.4 Construction (Gapped core/Air-cored shielded)

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

1.6 Max ambient (Design) temperature oC 40

1.7 Altitude m 1645

1.8 Rated voltage(Initial operation will be at reduced voltage)

kV(kV)

400(220)

1.9 Highest voltage for equipment, Um; Reactor must be able to operate continuously at this voltage.(Initial operational highest voltage for equipment)

kV

(kV)

420

(245)

1.10 Rated frequency Hz 50

1.11 Vector group YN

1.12 Cooling ONAN

1.13 Method of earthing Solid

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

1.15 Rated lightning impulse withstand voltage at:- HV terminals kV 1425- HV neutral-end terminals kV 125

1.16 Rated switching impulse voltage kV 1050

1.17 Rated power frequency withstand voltage at- HV terminals kV 436 (U1)- HV neutral-end terminals kV 50

1.18 Rated power:- Rated current IN- Max continuous current at Um

AA

144152

- Rated (reactive) power at Ur

- Rated power at 220 kV (initial energisation)MVArMVAr

10030 approx

- Rated reactance XN /phase 1600- Zero sequence reactance X0 - Mutual reactance XM /phase

1.19 Magnetic characteristic: Linear to percent of rated voltage

% 105




Required Offered

1.20 Maximum temperature rise at rated power at:- Windings K 65- Hot spot of windings K 78- Top oil K 60- Oil at inlet of cooler K

- Oil at outlet of cooler K

- Core- Tank Wall

KK

1.21 Losses at rated voltage and rated frequency kW

1.22 Maximum current density at rated power:- HV winding A/mm2

1.23 Maximum flux density at rated voltage, power frequency:- Wound limbs/core packets T- Yokes- Shield

TT

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

1.25 Terminal connection- Bushing standards- Pollution Class - Is KD Correction factor required?

(mm/kV)IEC 60137

IV (31)Yes

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

kVA

Bushing 420400

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

kVA

Bushing24

400

Porcelain

1.26 Current transformers

1.26a HV-Bushing turrets

- Number of cores 2- Rated extended primary current - Ratio (TR = turns ratio)

I core A 800/400/1 II core A 800/400/1

- Class I core 5P20 II core 5P20

- Knee point voltage (Ek) I core V II core V

- Exciting current (IE ) at Ek




Required Offered

I core mA II core mA

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

1.26b HV Neutral-End

- Number of cores/phase 1- Rated extended primary current - Ratio (TR = turns ratio)

I core 800/400/1- Class

I core 5P20- Knee point voltage (Ek)

I core V- Exciting current (IE ) at Ek

I core mA- Rated output (Burden to be 25-100% rated

burden) I core VA

1.26b HV Neutral

- Number of cores 1- Rated extended primary current - Ratio (TR = turns ratio)

I core 800/400/1- Class

I core 5P20- Knee point voltage (Ek)

I core V- Exciting current (IE ) at Ek

I core mA- Rated output (Burden to be 25-100% rated

burden) I core VA

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

A

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

1.28 Oil- Manufacturer- Type designation- Standards IEC 60296- Minimum flash point C- Viscosity

at 20C mm2/s at 50C mm2/s at 80C mm2/s




Required Offered

- Maximum dielectric strength for 1 min. kV- Dielectric factor- Acidity (neutralization value) mgKOH/

g

1.29 Oil preservation system- Type (Refrigerant/Bag/Membrane)- Breather- Oil Level Gauge

Maintenance-freeMagnetic

1.30 Types and arrangement of winding:

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

1.32 Conductor type (CTC, other)

1.33 Conductor insulation:

1.34 Calculated thermal time constant Hours

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

To the windings:

Through the windings:

1.36 Core construction:- Core segment- Core gaps- Taped/banded/bolted limbs - Taped/banded/bolted yokes- Taped/banded/bolted shield- Taping/banding material- Number of limbs- Type of joint in core (90% butt, overlap, mitre, etc.)- Core steel- Specific loss of core steel at 1.5 Tesla W/kg

1.37 Thickness of reactor tank- Sides mm- Bottom mm- Top mm

1.38 Material of reactor tank

1.39 Thickness of radiator plates mm

1.40 Total volume of conservator litres

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

7.5%

1.42 Volumetric expansion of oil from 0 to 90C m3




Required Offered

1.43 Pressure increase inside tank due to expansion of oil

1.44 Masses of reactor- Core and coils kg- Total mass excluded oil kg- Oil mass in tank kg

in radiators kg total kg

- Total mass kg

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

1.46 Dimensions of reactor arranged for transport- Height m- Width m- Length m

1.47 Filling medium of reactor tank for shipment

1.48 Maximum noise level dB(A) 86

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

Hot dip galvanized and painted

1.50 Tank anticorrosion protection

1.51 Supply voltage for reactor auxiliaries V 415/240 AC

1.52 Control/Protection voltage V 110 DC

1.53 Manufacturer quality assurance- According to ISO 9000, 9001, 9002, 9003 and

9004; List current accreditationYes

1.54 Type test certificate to be issued by:- Independent laboratory or independently witnessed

type test certificateYes

1.55 Routine tests

The ACLD test is to be carried out at the enhanced values given in IEC 60076-3; U1 @ 180%, U2 at 160% of Um. - 1 x 3-phase test or 3 x 1-phase test- U1, enhanced level- U2, 1 hour duration- Max PD level during 1 hour stage

kVkVpC

To IEC 60076-6

436388 500

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

1.56 Special Tests to be performed: (R=Routine/All units: T=Type/1 unit))




Required Offered

- Dielectric test – Chopped wave lightning impulse- Measurement of zero-sequence impedance- Measurement of mutual reactance- Determination of sound levels- Measurement of vibration- Measurement of harmonics- Determination of capacitance, windings to earth

and between windings- Measurement of insulation resistance to earth and

loss angle of insulation system capacitances- Verification of magnetic characteristic

Yes(R)Yes(R)Yes (R)Yes (R)Yes (R)Yes (R)Yes (R)

Yes (R)

Yes (T)



220kV XLPE INSULATED CABLE SYSTEM (334MVA) UNIT DATA

(with special bonding) Required Offered

1.0 General1.1 Name of manufacturer

1.2 Location of manufacturing site

1.3 Manufacturers Quality Certification ISO 9001

- Certified by (Company Name)- Certification valid till (year)

1.4 Circuit rating required MVA 334

1.5 General description of cable- number of cores 1

- system voltage kV 220

- conductor size mm2

- Insulation Type XLPE

- metal sheath type Lead

- oversheath type HDPE

1.6 Year of first commercial operation of cable type

2.0 Insulation Coordination2.1 Highest system voltage (Um) (insulation class) kV 245

2.2 Nominal voltage between conductors (U) kV 220

2.3 Rated frequency Hz 50

2.4 Nominal voltage between conductor and sheath (Uo) kV 130

2.5 Rated impulse withstand voltage (Up) (at altitude <1000m) kV 1050

2.6 Rated short duration power frequency withstand voltage (at altitude <1000m)

kV 460

3.0 Ratings3.1 Maximum continuous direct-buried current rating, assuming,

- Ground temperature at burial depth of 40oC- Maximum Soil thermal resistivity of 2.7K.m/W- Touching trefoil configuration- Special bonding of metal sheathsFor,Guaranteed Current Rating (Single Circuit in Trench) AGuaranteed Current Rating (Double Circuit in one Trench, distance between middle phases, s = 1500 mm)

A

Calculation Method IEC 60287




(with special bonding) Required Offered 3.2

3.3

Maximum continuous direct-buried current rating, assuming,- Ground temperature at burial depth of 40oC- Maximum Soil thermal resistivity of 2.7K.m/W- Flat formation configuration- Special bonding of metal sheathsFor,Guaranteed Current Rating (Single Circuit in Trench)Guaranteed Current Rating (Double Circuit in one Trench,distance between middle phases, s = 1500 mm)Calculation Method

Maximum continuous in-air current rating, assuming,

AA

IEC 60287

- Air temperature (in shade) of 50 oC- Special bonding of metal sheaths- Flat spaced configuration, phase spacing of 250mm- Thermally independent of other cable circuitsFor,Guaranteed Current Rating (single circuit) ACalculation Method

3.4 Maximum permissible core temperature for continuous operation

oC 90

3.5 Short circuit capacity for 1 sec- Short circuit current kA- Permissible maximum sheath temperature oC 200- Permissible maximum conductor temperature

oC 250

3.6 Permissible emergency overload3.6.1 Applied on 100% continuous load

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

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

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

4.0 Construction Features4.1 Conductor

- Material Cu, - Nominal cross-section mm2

- Shape and type of conductor- Overall diameter mm





- Waterblocking method Tape/yarn- Semiconducting binder tape yes

4.2 Conductor screen- Type of material Fully bonded

semicon. XLPE- Nominal thickness mm- Minimum thickness mm- Nominal overall diameter mm

- Compound Identification Reference yes

4.3 Insulation- Material XLPE- Nominal thickness mm- Minimum thickness mm- Nominal overall diameter mm- Maximum continuous operating temperature

oC 90- Compound Identification Reference yesMaximum stress at nominal voltage- At conductor screen kV/mm- At insulation screen kV/mmMaximum stress at impulse voltage- At conductor screen kV/mm- At insulation screen kV/mm

4.4 Insulation screen- Type of material Fully bonded

semicon. XLPE- Nominal thickness mm- Nominal overall diameter mm

- Compound Identification Reference- Indelible ink marking on screen yes

4.5 XLPE Manufacturing Methods- Extrusion line type e.g. CCV, MDCV, VCV- Single pass, triple extrusion yes- Curing method Dry- Cooling method Dry- Degassing Period days

4.6 Bedding for moisture absorption- Type and material- Nominal thickness mm- Minimum thickness mm- Nominal overall diameter over bedding mm

4.7 Metallic screen- Type and material Copper wire- Nominal thickness mm- Minimum thickness mm- Wire diameter No.- Nominal diameter over the screen mm- Cross sectional area of screen mm2

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

4.8 Bedding/Binder tape- Type and material





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

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

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

4.10 Protective anti-corrosion external sheath covering- Bitumen undercoat layer- Type and material HDPE- Colour Black- Nominal thickness mm- Minimum thickness mm- Termite resistant yes/no Yes- Type of anti-termite protection specify- Thermal resistivity K.m/W Max 6.0

- Type of fire protection for closing section

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

4.12 Nominal overall cable diameter mm

4.13 Weight of completed cable- Copper kg/m- Insulation kg/m- Lead-Alloy kg/m- Gross Weight kg/m

5.0 Losses5.1 Maximum dielectric loss per metre / phase when operating at

nominal voltage and frequency and at maximum conductor temperature

W/m

5.2 Maximum sheath loss per metre / phase when operating at nominal voltage and frequency and at current rating stipulated in Item 3 with sheath bonded and earthed as recommended (sectionalizing cross bonding)

W/m

5.3 Maximum conductor loss per metre / phase when operating at nominal voltage and frequency and at current rating stipulated in Item 3.

W/m

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

6.0 Electrical Values6.1 Maximum d.c. resistance of conductor at 20oC /m




(with special bonding) Required Offered6.2 Maximum a.c. resistance of conductor at operating

temperature/m

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

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

pF/m

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

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

6.7 Maximum dielectric loss factor of cable at normal voltage and frequency at a conductor temperature of:- 20oC- 90oC

6.8 Positive & Negative sequence impedance /m

6.9 Zero sequence impedance (as installed conditions)- Resistance /m- Reactance /m- Capacitance pF/m

6.10 Surge impedance

7.0 Bonding & Earthing7.1 Type of special bonding7.2 Maximum sheath potential of completed cable with conductor

at rated current with sheath bonded and earthed as recommended

V/m

7.3 Maximum sheath potential of completed cable with conductor at maximum earth fault current of 40 kA with sheath bonded and earthed as recommended

V/m

7.4 SVL Rating Min. 6kV

8.0 Testing8.1 Routine Tests

- As per IEC 62067 Yes- Additional tests specified in KETRACO spec. yes

8.2 Sample Tests - 5Uo for 1 hour (as per KETRACO spec.) yes

8.3 Type Tests- Test Regime IEC 62067- Location of Test- Date of Test- Name of independent witness

8.4 Prequalification Test- Test Regime- Date completed- Location of Test- Name of independent witness

8.5 Commissioning Tests- AC voltage withstand test 1.7Uo for 1 hour





- Partial discharge monitoring <10pC- Oversheath DC voltage test kV 12kV for 15

minutes

9.0 Other Installation Data9.1 Minimum cable bending radius when laid:

- Direct burial mm- In air mm- In ducts mm- At terminations (with former) mm

9.2 Maximal permissible pulling force of total cable kN

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

kN/m

9.4 Delivery length per drum Normal m Maximum m

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

kg

9.6 Drum dimensions: Flange diameter m Core diameter m Width m



220kV CABLE SHEATH BONDING AND EARTHING EQUIPMENT UNIT DATA

Required Offered

1. SHEATH VOLTAGE LIMITERS

1.1. Manufacturer


1.3. Type ZnO, non linear

1.4. Type test carried out Yes/no

1.5.. Rated frequency Hz 50

1.6. System voltage kV 220

1.7. Protective level kV

1.8. Peak values of residual voltage on 8/20 microsecond current impulse current of:

- 2000A kV

- 5000A kV

- 10000A kV

- 15000A kV

- 20000A kV

1.9. Withstand energy Joule

1.10. Maximum specified a.c. voltage which can be withstood for 2 sec. kV

1.11. Conductivity characteristics of SVL at 200V- d.c. test current MA- voltage limit minimal V- voltage limit maximal V 0 – 10 mA

1.12. Insulation resistance at 1000V d.c. voltage M 10

1.13 Permissible ambient temperature 0C 0 – 900C

1.14 Nominal physical dimensions- diameter mm

- height mm

2. LINK BOXES

2.1. Manufacturer

2.2. Type designation- with SVL- for solid bonding

2.3. Type- along the route- at the terminal location Lockable/

Buried




Required Offered2.4. Type test carried out Yes/no

2.5. Rated frequency Hz 50

2.6. System voltage kV 220

2.7. Material- thickness of sheet- material of gaskets Compound/

dry- way of gasket fitting

2.8. Impulse voltage test- between cable sheaths kV 40- between sheaths and water kV 20

2.9. D. C. Voltage test kV/min 20kV/1min.

2.10. Box dimensions- width mm- length mm- height mm- weight kg

2.11 Protection class IP65

3. SINGLE CORE BONDING CABLE

3.1. Manufacturer


3.3. Standards BS 6346C.55/4

3.4. Conductor Nominal Cross Section mm² No. of wires/Diameter 1/mm Diameter Min/max

3.5. PVC Insulation Material PVC Thickness mm Diameter Min/max. Graphite coating Yes/no Yes

3.6. Nominal overall diameter mm

3.7. Weight of cable kg/m

3.8. Maximum d.c. resistance at 20°C Inner conductor 10-6 Ohm/m Outer conductor 10-6 Ohm/m

3.9. DC Voltage test Between conductor and screen kV/min 20kV/ 1min




Required Offered3.10. Impulse voltage test (1.2/50)

Between conductor and screen kV 45

3.11. Maximum short circuit current, 1 second kA 31.5

3.12. Type test carried out Yes/no- Independent Laboratory Name- Year of the type test performance



220kV CABLE ACCESSORIES UNIT DATA

Required Offered

1. TERMINATIONS

1.1. Manufacturer

1.2. Location of manufacturing site

1.3. Year of first commercial operation

1.3a Operational experience in the region Yes/no

1.4. Type tests- Test Regime IEC 62067- Location of Test- Date of Test- Name of independent witness

1.5.. Identifying reference number (for cross reference with type test)

1.6. Termination type (ODSE, OISE, GISE, wet type, dry type) ODSE

1.7. Partial Discharge Sensor Internal

1.8. Conductor connection method

1.9. Method of stress control

1.10. Compliant with IEC 60859 (GISE only)

1.11. Overall weight kg

1.12. Overall diameter mm

1.13 Overall length mm

2. JOINTS

2.1. Manufacturer

2.2. Location of manufacturing site

2.3. Year of first commercial operation

2.4. Operational experience in the region Yes/no

2.5. Type tests- Test Regime IEC 62067- Location of Test- Date of Test- Name of independent witness

2.6. Identifying reference number (for cross reference with type test)

2.7. Joint type Premoulded



220kV CABLE ACCESSORIES UNIT DATA

Required Offered

1-piece2.8. Partial discharge sensor Internal

2.9. Conductor connection method

2.10. Copper joint shell with lead plumb seals yes

2.11 Sheath insulation (taped, heat shrink sleeve, GF box plus bitumen)

2.12 Overall diameter mm

2.13 Overall length mm



FIBRE OPTIC PILOT CABLE SYSTEM UNIT DATA

Required Offered1. FIBRE OPTIC PILOT CABLE

1.1. Name of manufacturer


1.3. Cable type Non-zero dispersion shifted single mode

1.4. Standards:

- for single mode fibres ITU-T G.655

- for optical fibre cables

1.5. Number of optical fibres Nos. 48

1.6. Optical wavelength nm 1550 or 1625(optimized for 1550)

1.7. Attenuation coefficient dB/km- at 1550 nm- at 1625 nm

1.8. Dispersion coefficient ps/nm.km- at 1550 nm- at 1625 nm

1.9. Cut off wavelength nm- at 1550 nm- at 1625 nm

1.10. Maximum optical loss variation at temperature range of 0 oC to +40 oC

dB/km

1.11. Transmission speed Mbit/s

1.12. Tensile strength (without temporary or permanent optical degradation and mechanical cable damage)

N

1.13. Permissible bending radius mm

1.14. Mode field diameter and tolerance m

1.15 Mode field non-circularity %

1.16. Mode field concentricity error m

1.17. Cladding diameter and tolerance m

1.18. Cladding non-circularity %

1.19. Primary coating material

1.20. Diameter over primary coating and tolerance m

1.21. Type of secondary coating




Required Offered1.22. Secondary coating material

1.23. Type of central strength element Fibre-reinforced plastic material

1.24. Filler Non-hygroscopic

1.25. Type of belt insulation- Material PVC tapes- Radial thickness mm

1.26. Inner jacket (peripheral tensile strength member)- Material- Radial thickness mm

1.27. Outer jacket- Material PVC- Radial thickness mm

1.28. Anti-termite protection “Rigid” plastic over the outer

cable jacket

1.29. Overall diameter of completed cable mm

1.30. Drum length km

1.31. Mass of cable (per km) kg

1.32. Manufacturer quality system in accordance with ISO 9000, 9001 and 9004

Yes/No Yes

- Applicable Standard- Certified by (Company Name)- Certification valid till (year)

1.33. Type test carried out Yes/No Yes- Independent Laboratory Name- Year of the type test performance

2. FIBRE OPTIC JOINT CLOSURE

2.1. Name of manufacturer

2.2. Type designation Splice

2.3. Splice capacity Nos. Min. 2 fibre optic cables, each with

min. 48 single modefibres with loose

tube

2.4. Fibre Optical Cable Gland To accept metal-free optical cable, min 48single mode fibres,

with loose tube

2.5. Maximum optical attenuation per splice dB 0.1




Required Offered

2.6. Housing Waterproof, and corrosion resistant

2.7. Installation Direct burial into ground

2.8. Dimensions mm

2.9. Mass kg


Yes/No Yes


2.11. Type test carried out Yes/No Yes- Independent Laboratory Name- Year of the type test performance

3. OPTICAL TERMINAL BOX3.1. Name of manufacturer


3.3. Number of optical fibres Nos. min. 48

3.4. Fibre Optical Cable Gland To accept metal-free optical cable, min 48single mode fibres,

with loose tube

3.5. Maximum optical attenuation per splice dB 0.1

3.6. Type of optical connectors F.C. – P.C.

3.7. Housing Tamper-proof, sealed, rugged

construction3.8. Installation

- at substation end

- at OHL tower end

Wall/structuremounted

Supplied by others

3.9. Dimensions mm

3.10. Mass kg


Yes/No Yes


3.12. Type test carried out Yes/No Yes- Independent Laboratory Name




Required Offered

- Year of the type test performance

Documents

4. SCHEDULES OF TECHNICAL INFORMATION - Kenya …kplc.co.ke/fileadmin/user_upload/kplc09_files/UserFiles/File/7-4... · Type designation 2.3. Type SF6 ... 3.19 Mass