Mariakani_Technical_Schedules ( Word Version )
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4.
SCHEDULES OF TECHNICAL INFORMATION
Section VI – Requirements
Environmental Guidelines for Contractors
Page 1 of 677
CONTENTS
A
400 kV OPEN TERMINAL SWITCHGEAR
B
220 kV OPEN TERMINAL SWITCHGEAR
C
EARTHING AND LIGHTNING PROTECTION
D
PROTECTION AND INDICATION SYSTEM
E
TARIFF METERING SYSTEM
F
FAULT MONITORING SYSTEM
G
11kV XLPE INSULATED CABLE SYSTEM (with solid bonding)
H
SUBSTATION CONTROL SYSTEM
I
DIESEL GENERATOR
J
LV SERVICES EQUIPMENT
K
400/220kV POWER TRANSFORMERS (AIS-AIS)
L
400kV SHUNT REACTOR
M
11/0.415kV; 500kVA EARTHING/AUXILIARY
TRANSFORMERS (CAF-CAF)
N
NEUTRAL EARTHING RESISTOR
O
400kV OVERHEAD LINE
P
220 kV OVERHEAD LINE
Section VI – Requirements
Environmental Guidelines for Contractors
Page 2 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
Offered
1.
GENERAL
1.1.
Standards
IEC
IEC 62271-100, 62271102, 62271-1, 62155,
60044-1, 60044-5,
60383, 60815
1.2.
Rated voltage
kV
420
1.3.
System Voltage
kV
400
1.4.
Rated frequency
Hz
50
1.5.
Rated lightning impulse withstand voltage (at
altitude <1000m)
KVp
1425
KVp
1425
kVp
1425 (+240)
KVp
1050
KVp
1575
kVp
900 (+345)
kV
520
-
-
1.6.
Across the isolating distance
Rated switching impulse withstand voltage (at
altitude <1000m)
-
-
1.7.
Phase to earth
Phase to phase
Phase to earth
Phase to phase
Across the isolating distance
Rated power frequency withstand voltage (at
altitude <1000m)
-
Phase to earth
Section VI – Requirements
Environmental Guidelines for Contractors
Page 3 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
-
Phase to phase
kV
520
-
Across the isolating distance
kV
610
1.8.
Rated short-time withstand current (1 s)
kA
40
1.9.
Rated peak withstand current
kA
100
1.10.
Rated Current
4000
-
at 40 oC
A
-
at 50 oC (Contractor to confirm by calculation)
A
1.11.
Material of HV conductor
1.12.
Material of contacts
1.13.
Minimum factors of safety for switchgear
-
Busbars or other connections based on elastic
limit
2.5
-
Complete insulators based on electromechanical 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
Section VI – Requirements
Environmental Guidelines for Contractors
Offered
2.5
Page 4 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
1.14.
Creepage distance (based on Um)
1.15.
Seismic factor
2.
mm/kV
Offered
31
CIRCUIT BREAKER
2.1.
Manufacturer & Place of manufacturing
2.2.
Type designation
2.3.
Type
2.4.
Standards
2.5.
Rated operating sequence
O -0.3 sec- CO -3 min CO
2.6.
Auto reclosing
O -0.3 sec- CO -3 min CO
2.7.
Rated making current
KAp
100
2.8
Rated breaking current
kA
40
Rated breaking current (asymmetrical)
KA
To IEC 62271-100
2.9.
SF6 single pole
%dc
Rated breaking current under out-of-phase
conditions
Section VI – Requirements
Environmental Guidelines for Contractors
62271-1, IEC 62271100, 62271-101,
62271-110, 60376,
60480
%dc
kA
10
Page 5 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
2.10.
First phase to clear factor
2.11
Transient Recovery Voltages
2.12.
Rated capacitive breaking current
2.13.
1.3
TRVs
To IEC 62271-100
To IEC 62271-100
Rated line charging breaking current
A
Rated cable charging breaking current
A
Rated Single/Back to Back Capacitor bank
breaking current
A
Rated small inductive/reactor breaking currents of:
To IEC 62271-110
-
small inductive
A
-
reactor
A
2.14.
Maximum overvoltage factor on any switching duty
pu
2.3
2.15.
Maximum overvoltage factor when interrupting
rated line/cable/capacitor bank charging currents
pu
2.3
2.16.
Maximum overvoltage factor when switching small
inductive/reactor currents
pu
2.3
2.17.
Maximum total break time (trip initiation to final arc
extinction)
ms
60
2.18.
Opening time (trip initiation to contact separation)
-
Without current
Section VI – Requirements
Environmental Guidelines for Contractors
Offered
ms
Page 6 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
-
With 100% rated breaking current
2.19.
Maximum time interval between opening of first
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
2.22.
Making time (energisation of close coil to contact
touch)
ms
ms
ms
-
100% making current
ms
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
2.26.
Mechanical life of circuit breaker and mechanism
in No. of operations
2.27.
Electrical contact life in number of operations at:
Section VI – Requirements
Environmental Guidelines for Contractors
-
ms
Without current
Maximum time interval between closure of first and
last phase of three phase circuit breaker
3
-
-
2.23.
Offered
ms
3.3
-
-
ms
10,000
Page 7 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
-
Rated current - 4000 A
-
Fault current - 40kA
-
Cumulative ampere rating
2.28.
Number of current interrupting break units in series
per phase
2.29.
Type of operating mechanism
2.30.
Type of power device (motor charged)
15 to 20
Two
Motor charged spring
operated
-
For closing
Spring or hydraulic
-
For opening
Spring or hydraulic
2.31.
Hand operating facility
Yes
2.32.
Manual spring release (suitably positioned to avoid
accidental operation)
Yes
2.33.
Mechanical on/off indicator
Yes
2.34.
Mechanical spring charge / discharge indication
Yes
2.35.
Charging time
2.36.
Number of trip coils per phase
2
2.37.
Number of close coils per phase
1
Section VI – Requirements
Environmental Guidelines for Contractors
Offered
S
Page 8 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
2.38.
Nominal control and operating voltage
V
110 DC
2.39.
Nominal heater voltage
V
240 AC
2.40.
Rated power of trip coil
W
2.41.
Rated power of close coil
W
2.42.
Rated motor power
W
2.43.
Total load of heaters for circuit breaker
W
2.44.
Mass of circuit breaker complete (three pole)
kg
2.45.
Mass of single phase circuit breaker
Kg
2.46
Emergency Trip Facility
3.
Offered
-
Yes
ISOLATORS
3.1.
Manufacturer & Place of Manufacturing
3.2.
Type designation
Section VI – Requirements
Environmental Guidelines for Contractors
Page 9 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
3.3.
Type of operating mechanism
3.4.
Standards
Offered
Motor
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
3.12
Automatic isolation of control supplies when lock
off
Yes
3.13.
Accessibility to operating mechanism from ground
level
Yes
3.14.
Nominal heater voltage
V
3.15.
Rated power of operation coil
W
Section VI – Requirements
Environmental Guidelines for Contractors
V
110 DC
240 AC
Page 10 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
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.
Offered
EARTHING SWITCH
4.1.
Manufacturer & place of manufacturing
4.2.
Type designation
4.3.
Type of operating mechanism
4.4.
Standards
4.5.
Hand operating facility
Yes
4.6.
Locking arrangement in on/off position
Yes
Section VI – Requirements
Environmental Guidelines for Contractors
Motor
IEC 62271-102, 62271-1
Page 11 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
4.7.
Nominal control and operating voltage
4.8.
Automatic isolation of control supplies when lock
off
Yes
4.9.
Accessibility to operating mechanism from ground
level
Yes
4.10.
Nominal heater voltage
V
4.11.
Total load of heaters for earthing switch
W
4.22.
Total mass of earthing switch complete
kg
5.
V
Offered
110 DC
240 AC
CURRENT TRANSFORMER
5.1.
Manufacturer & Place of manufacturing
5.2.
Type
5.3.
Standards
5.4.
Rated continuous thermal current at 40oC
Rated extended
primary current
5.5.
Current transformers
Refer to Tender
Drawings
Section VI – Requirements
Environmental Guidelines for Contractors
Post
IEC 62271-1, 60044-1
Page 12 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
-
Number of cores
-
Rated extended primary current
-
Ratio (TR – turns ratio)
-
-
-
-
Offered
120%
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
Section VI – Requirements
Environmental Guidelines for Contractors
Page 13 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
IV core
Total mass of single phase current transformer
complete
6.
Offered
VA
kg
CAPACITIVE VOLTAGE TRANSFORMERS
6.1.
Manufacturer & Place of manufacturing
6.2.
Type
6.3.
Standards
6.4.
Maximum permissible partial discharge level
Capacitive
IEC 60044-5
pC
10
pC
5
Um
6.5.
Maximum permissible partial discharge level
1.2Um /3
6.6.
Method of suppressing ferroresonance
phenomena
6.7.
Voltage transformer
-
Number of secondaries
-
Rated transformation ratio
Section VI – Requirements
Environmental Guidelines for Contractors
Refer to Tender
Drawings
kV
Page 14 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
-
-
-
7
Offered
Rated accuracy class
I secondary
II secondary
Rated output (burden to be 25-100% rated
burden)
I secondary
VA
II secondary
VA
Mass of single phase voltage transformer
kg
METERING INSTRUMENT TRANSFORMERS
7.1
Manufacturer
7.2
Type designation
7.3
Standards
7.4
Rated continuous thermal current at 400C
7.5
Current transformers
-
Post
IEC 60044-3, 61869
Rated extended
primary current
Number of cores
120%
Section VI – Requirements
Environmental Guidelines for Contractors
Page 15 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
-
Rated extended primary current
-
Ratio (TR – turns ratio)
•
I core
•
II core
-
Class
•
I core
•
II core
-
Knee point voltage (Ek)
•
I core
•
II core
Offered
Refer to Tender
Drawings
V
V
-
Exciting current (IE) at Ek
•
I core
mA
•
II core
mA
mA
mA
Rated output (burden to be 25100% rated burden)
•
I core
VA
•
II core
VA
Total mass of single phase current
transformer complete
VA
VA
Section VI – Requirements
Environmental Guidelines for Contractors
Page 16 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
Offered
kg
7.6
Voltage transformers
-
Number of secondaries
Refer to Tender
Drawings
Maximum permissible partial discharge
level Um
10
pC
Maximum permissible partial discharge
level 1.2Um/√3
5
pC
-
Method of suppressing Ferro resonance
-
Ratio (TR – turns ratio)
-
Voltage factor, PU – BS EN 61869
-
Rated accuracy class
•
I secondary
•
II secondary
1.5PU, 30secs
Rated output (burden to be 25-100%
rated burden)
•
I secondary
•
II secondary
-
Mass of single phase voltage transformer
Section VI – Requirements
Environmental Guidelines for Contractors
Page 17 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
Offered
VA
VA
kg
8.
BUSBARS AND CONNECTIONS
8.1
Manufacturer
8.2
Type (flexible or tubular)
8.3
Material
8.4
Short-circuit current rating / duration
8.5
Normal current rating
-
at 40oC
at 50oC
KA/s
A
A
8.6
Maximum continuous current rating
8.7
Flexible conductors
-
stranding
nominal cross-sectional area
outer diameter
no. of conductors per bundle
spacing between conductors
A
mm2
mm
mm
Section VI – Requirements
Environmental Guidelines for Contractors
Page 18 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
8.8
Offered
Tubular conductors
-
nominal cross-sectional area
outer diameter
inner diameter
mm2
mm
mm
8.9
Maximum stress at surface of flexible conductor
8.10
Radio influence voltage level measured at 1.1
times Us/3 at 1 MHz
9
kV/mm
µV
POST TYPE INSULATORS
9.1
Manufacturer
9.2
Type designation
9.3
Insulator material
9.4
Number of units in complete post insulator
9.5
Length of each unit
9.6
Mass of complete post insulator
kg
9.7
Maximum cantilever working load (complete post
insulator)
N
Section VI – Requirements
Environmental Guidelines for Contractors
mm
Page 19 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
9.8
Minimum cantilever breaking load, upright
(complete post insulator)
N
9.9
Power frequency withstand voltage dry: wet
kV
9.10
Basic insulation level
kVp
9.11
Minimum dry/wet switching surge withstand level
kVp
9.12
Radio influence voltage level measured at 1.1
times Us/3 at 1 MHz
10
TENSION AND SUSPENSION INSULATORS
µv
10.1
Manufacturer
10.2
Type designation
10.3
Insulator material
10.4
Number of units in string
mm
10.5
Greatest diameter of units
mm
10.6
Distance between centres of units
mm
Section VI – Requirements
Environmental Guidelines for Contractors
Offered
Page 20 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
10.7
Length of string, overall
10.8
Mass of string complete with all fittings
kg
10.9
Maximum working load
N
10.10
Power frequency withstand voltage of complete
string
kV
10.11
Basic insulation level of complete string
kVp
10.12
Minimum wet switching surge withstand level of
complete string
kVp
10.13
Radio influence voltage measured at 1.1 times
Us/3 at 1 MHz
µv
mm
11.
400KV SURGE ARRESTERS
11.1
Type
11.2
Standard
11.3
Rated/system voltage
kV
420/400
Maximum overvoltage factor on the system due to
any switching duty
pu
2.3
11.4
Rated system frequency
Hz
50
11.5
Condition of system neutral
11.6
Nominal Discharge current
kAcrest
11.7
Energy capability as per IEC 60099-4
kJ/kV
11.8
Rated Voltage – MOA
Section VI – Requirements
Environmental Guidelines for Contractors
Offered
MOA
IEC 60099-4
Solid
kV
20
360
Page 21 of 677
A.
400 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
11.9
Long duration discharge class as per IEC 99-1
Class
4
11.10
Maximum Continuous Operating Voltage (COV)
kV
260 min
11.11
TOV capability for
1sec
10sec
kV
kV
Maximum residual voltage with current wave
Switching Surges – 1kA/2kA
8/20 μs – 5kA
8/20 μs – 20Ka
kV
kV
kV
To IEC 60099-4
To IEC 60099-4
To IEC 60099-4
Discharge current withstand strength
High current 4/10 μs
Low current 2000 μs
KAp
KAp
To IEC 60099-4
To IEC 60099-4
11.12
11.13
12..
12.1
12.2
13.
Manufacturer quality system in accordance with
ISO 9000
Date of issue
Validity
Type test certificate to be issued by independent
laboratory or independently witnessed type test
certificate to be submitted
Offered
Yes
Latest
Valid Certificates - Yes
Yes
Note:- Technical parameters stated above to be confirmed following nominated Contractor’s insulation co-ordination study.
Section VI – Requirements
Environmental Guidelines for Contractors
Page 22 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
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)
1.6.
-
Phase to earth
KVp
1050
-
Across the isolating distance
kVp
1200
Offered
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
A
2000
-
at 40 oC
Section VI – Requirements
Environmental Guidelines for Contractors
Page 23 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
-
at 50 oC (Contractor to confirm by calculation)
1.10.
Material of HV conductor
1.11.
Material of contacts
1.12.
Minimum factors of safety for switchgear
A
-
Busbars or other connections based on elastic
limit
2.5
-
Complete insulators based on electromechanical test
2.5
-
Insulator metal fittings based on elastic limit
2.5
1.13.
Steel structures based on elastic limit of
tension members and on cripping loads of
compression members
Foundations for structures against overturning
or uprooting under maximum simultaneous
working loadings
Creepage distance (based on Um)
mm/kV
1.14.
Seismic factor
-
2.
Offered
2.5
2.5
31
CIRCUIT BREAKER
2.1.
Manufacturer & Place of manufacturing
2.2.
Type designation
2.3.
Type
2.4.
Standards
Section VI – Requirements
Environmental Guidelines for Contractors
SF6 single pole
62271-1, IEC 62271100, 62271-101,
62271-110, 60376,
60480
Page 24 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
2.5.
Rated operating sequence
O -0.3 sec- CO -3
min - CO
2.6.
Auto reclosing
O -0.3 sec- CO -3
min - CO
2.7.
Rated making current
KAp
80
2.8
Rated breaking current
kA
31.5
Rated breaking current (asymmetrical)
KA
To IEC 62271-100
-
%dc
2.9.
Rated breaking current under out-of-phase
conditions
2.10.
First phase to clear factor
2.11
Transient Recovery Voltages
2.12.
Rated capacitive breaking current
2.13.
%dc
kA
10
1.5
TRVs
To IEC 62271-100
To IEC 62271-100
Rated line charging breaking current
A
Rated cable charging breaking current
A
Rated Single/Back to Back Capacitor bank
breaking current
A
Rated small inductive/reactor breaking currents of:
To IEC 62271-110
-
small inductive
A
-
reactor
A
Section VI – Requirements
Environmental Guidelines for Contractors
Offered
Page 25 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
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
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
2.22.
Making time (energisation of close coil to contact
touch)
ms
3
-
-
-
ms
-
Without current
ms
-
100% making current
ms
Section VI – Requirements
Environmental Guidelines for Contractors
Offered
Page 26 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
2.23.
Maximum time interval between closure of first and
last phase of three phase circuit breaker
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
2.26.
Mechanical life of circuit breaker and mechanism
in No. of operations
2.27.
Electrical contact life in number of operations at:
-
Rated current -2000 A
-
Fault current - 31.5 kA
-
Cumulative ampere rating
2.28.
Number of current interrupting break units in series
per phase
2.29.
Type of operating mechanism
2.30.
Type of power device (motor charged)
ms
3.3
-
-
-
ms
10,000
15 to 20
One
Motor charged spring
operated
-
For closing
Spring or hydraulic
-
For opening
Spring or hydraulic
2.31.
Hand operating facility
Yes
2.32.
Manual spring release
Yes
Section VI – Requirements
Environmental Guidelines for Contractors
Offered
Page 27 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
2.33.
Mechanical on/off indicator
Yes
2.34.
Mechanical spring charge / discharge indication
Yes
2.35.
Charging time
2.36.
Number of trip coils per phase
2
2.37.
Number of close coils per phase
1
2.38.
Nominal control and operating voltage
V
110 DC
2.39.
Nominal heater voltage
V
240 AC
2.40.
Rated power of trip coil
W
2.41.
Rated power of close coil
W
2.42.
Rated motor power
W
2.43.
Total load of heaters for circuit breaker
W
2.44.
Mass of circuit breaker complete (three pole)
kg
Section VI – Requirements
Environmental Guidelines for Contractors
Offered
s
Page 28 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
2.45.
Mass of single phase circuit breaker
2.46
Emergency Trip Facility
3.
UNIT
-
DATA
Required
Offered
-
-
Yes
ISOLATORS
3.1.
Manufacturer & Place of Manufacturing
3.2.
Type designation
3.3.
Type of operating mechanism
3.4.
Standards
Motor
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
Section VI – Requirements
Environmental Guidelines for Contractors
Page 29 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
3.9
Hand operating facility
Yes
3.10
Locking arrangement in on/off position
Yes
3.11
Nominal control and operating voltage
3.12
Automatic isolation of control supplies when lock
off
Yes
3.13.
Accessibility to operating mechanism from ground
level
Yes
3.14.
Nominal heater voltage
V
3.15.
Rated power of operation coil
W
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
Section VI – Requirements
Environmental Guidelines for Contractors
V
Offered
110 DC
240 AC
Page 30 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
4.
Offered
EARTHING SWITCH
4.1.
Manufacturer & place of manufacturing
4.2.
Type designation
4.3.
Type of operating mechanism
4.4.
Standards
4.5.
Hand operating facility
Yes
4.6.
Locking arrangement in on/off position
Yes
4.7.
Nominal control and operating voltage
4.8.
Automatic isolation of control supplies when lock
off
Yes
4.9.
Accessibility to operating mechanism from ground
level
Yes
4.10.
Nominal heater voltage
V
4.11.
Total load of heaters for earthing switch
W
Section VI – Requirements
Environmental Guidelines for Contractors
Motor
IEC 62271-102,
62271-1
V
110 DC
240 AC
Page 31 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
4.22.
5.
Total mass of earthing switch complete
Offered
kg
CURRENT TRANSFORMER
5.1.
Manufacturer & Place of manufacturing
5.2.
Type
5.3.
Standards
5.4.
Rated continuous thermal current at 40°C
Post
IEC 62271-1, 60044-1
Rated extended
primary current
Note: All Cl PX CTs shall be ISN 1.2 A
5.5.
Current transformers
-
Number of cores
-
Rated extended primary current
-
Ratio (TR – turns ratio)
-
Refer to Tender
Drawings
120%
I core
A
II core
A
III core
A
IV core
A
Class
I core
Section VI – Requirements
Environmental Guidelines for Contractors
Page 32 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
-
-
-
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
6.
Offered
kg
CAPACITIVE VOLTAGE TRANSFORMERS
6.1.
Manufacturer & Place of manufacturing
6.2.
Type
Section VI – Requirements
Environmental Guidelines for Contractors
Capacitive
Page 33 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
6.3.
Standards
6.4.
Maximum permissible partial discharge level
Offered
IEC 60044-5
pC
10
pC
5
Um
6.5.
Maximum permissible partial discharge level
1.2Um /3
6.6.
Method of suppressing ferroresonance
phenomena
6.7.
Voltage transformer
-
Number of secondaries
-
Rated transformation ratio
-
Rated accuracy class
-
-
7
I secondary
II secondary
Refer to Tender
Drawings
kV
Rated output (burden to be 25-100% rated
burden)
I secondary
VA
II secondary
VA
Mass of single phase voltage transformer
kg
METERING INSTRUMENT TRANSFORMERS
Section VI – Requirements
Environmental Guidelines for Contractors
Page 34 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
7.1
Manufacturer
7.2
Type designation
7.3
Standards
7.4
Rated continuous thermal current at 400C
7.5
Current transformers
Offered
Post
IEC 60044-3, 61869
-
Number of cores
-
Rated extended primary current
-
Ratio (TR – turns ratio)
Rated extended
primary current
120%
Refer to Tender
•
I core
•
II core
-
Class
•
I core
•
II core
-
Knee point voltage (Ek)
•
I core
•
II core
Drawings
V
Section VI – Requirements
Environmental Guidelines for Contractors
Page 35 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
-
Exciting current (IE) at Ek
•
I core
mA
•
II core
mA
Offered
V
mA
Rated output (burden to be 25100% rated burden)
•
I core
VA
•
II core
VA
mA
Total mass of single phase current
transformer complete
VA
VA
kg
7.6
Voltage transformers
-
Number of secondaries
Refer to Tender
Drawings
Maximum permissible partial discharge
level Um
10
pC
Maximum permissible partial discharge
level 1.2Um/√3
5
pC
-
Method of suppressing Ferro resonance
-
Ratio (TR – turns ratio)
Section VI – Requirements
Environmental Guidelines for Contractors
Page 36 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
-
Voltage factor, PU – BS EN 61869
-
Rated accuracy class
•
I secondary
•
II secondary
Offered
1.5PU, 30secs
Rated output (burden to be 25-100%
rated burden)
•
I secondary
•
II secondary
-
Mass of single phase voltage transformer
VA
VA
kg
7.10
Radio influence voltage level measured at 1.1
times Us/3 at 1 MHz
8.
BUSBARS AND CONNECTIONS
8.1
Manufacturer
8.2
Type (flexible or tubular)
Section VI – Requirements
Environmental Guidelines for Contractors
µV
Page 37 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
8.3
Material
8.4
Short-circuit current rating / duration
8.5
Normal current rating
-
at 40oC
at 50oC
Offered
KA/s
A
A
8.6
Maximum continuous current rating
8.7
Flexible conductors
-
stranding
nominal cross-sectional area
outer diameter
no. of conductors per bundle
spacing between conductors
A
mm2
mm
mm
8.8
Tubular conductors
-
nominal cross-sectional area
outer diameter
inner diameter
mm2
mm
mm
8.9
Maximum stress at surface of flexible conductor
8.10
Radio influence voltage level measured at 1.1
times Us/3 at 1 MHz
Section VI – Requirements
Environmental Guidelines for Contractors
kV/mm
µV
Page 38 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
9
Offered
POST TYPE INSULATORS
9.1
Manufacturer
9.2
Type designation
9.3
Insulator material
9.4
Number of units in complete post insulator
9.5
Length of each unit
9.6
Mass of complete post insulator
kg
9.7
Maximum cantilever working load (complete post
insulator)
N
9.8
Minimum cantilever breaking load, upright
(complete post insulator)
N
9.9
Power frequency withstand voltage dry: wet
kV
9.10
Basic insulation level
kVp
9.11
Minimum dry/wet switching surge withstand level
kVp
9.12
Radio influence voltage level measured at 1.1
times Us/3 at 1 MHz
Section VI – Requirements
Environmental Guidelines for Contractors
mm
µv
Page 39 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
10
Offered
TENSION AND SUSPENSION INSULATORS
10.1
Manufacturer
10.2
Type designation
10.3
Insulator material
10.4
Number of units in string
mm
10.5
Greatest diameter of units
mm
10.6
Distance between centres of units
mm
10.7
Length of string, overall
mm
10.8
Mass of string complete with all fittings
kg
10.9
Maximum working load
N
10.10
Power frequency withstand voltage of complete
string
kV
10.11
Basic insulation level of complete string
kVp
Section VI – Requirements
Environmental Guidelines for Contractors
Page 40 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
10.12
Minimum wet switching surge withstand level of
complete string
kVp
10.13
Radio influence voltage measured at 1.1 times
Us/3 at 1 MHz
µv
11.
220KV SURGE ARRESTERS
11.1
Type
11.2
Standard
11.3
Rated/system voltage
-
Maximum overvoltage factor on the system
due to any switching duty
MOA
IEC 6099-4
kV
245/220
pu
2.3
Hz
50
11.4
Rated system frequency
11.5
Condition of system neutral
11.6
Nominal Discharge current
kAcrest
11.7
Energy capability as per IEC 60099-4
kJ/kV
Section VI – Requirements
Environmental Guidelines for Contractors
Offered
Solid
10
Page 41 of 677
B.
220 kV OPEN TERMINAL SWITCHGEAR
UNIT
DATA
Required
11.8
Rated Voltage – MOA
11.9
Long duration discharge class as per IEC 6099-4
Class
3
11.10
Maximum Continuous Operating Voltage (COV)
kV
To IEC 60099-4
11.11
TOV capability for
-
1sec
10sec
Offered
kV
kV
kV
11.12
Maximum residual voltage with current wave
-
11.13
Switching Surges – 1kA/2kA
8/20 μs – 5kA
8/20 μs – 20Ka
To IEC 60099-4
kV
To IEC 60099-4
kV
To IEC 60099-4
KAp
To IEC 60099-4
KAp
To IEC 60099-4
Discharge current withstand strength
High current 4/10 μs
Low current 2000 μs
12.
kV
Type test certificate to be issued by independent
Yes
laboratory or independently witnessed type test
certificate to be submitted
Section VI – Requirements
Environmental Guidelines for Contractors
Page 42 of 677
C.
EARTHING AND LIGHTNING PROTECTION
UNIT
DATA
Required
1.
Offered
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 & 81
VDE 0141
1.3.
Physical Properties of Copper
The most important physical properties of copper used for the
earthing conductors:
1.4.
Density
Electrical resistivity at 20C
Melting point
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
kg/dm3
8.89
mm2/m
0.0176
C
1083
A/mm2
190
Physical Properties of Lead-Sheathed Copper
The most important physical properties of lead-sheathed
copper used for the earth electrodes:
Section VI – Requirements
Environmental Guidelines for Contractors
Page 43 of 677
C.
EARTHING AND LIGHTNING PROTECTION
UNIT
DATA
Required
1.5.
1.5.1.
Thickness of lead sheath
Electrical resistivity of copper at 20C
mm
2.0
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
Offered
Earthing Conductors
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
Section VI – Requirements
Environmental Guidelines for Contractors
Page 44 of 677
C.
EARTHING AND LIGHTNING PROTECTION
UNIT
DATA
Required
1.5.2.
Cross-section area
mm
Number of wires
pcs
Diameter of each wire
mm
Conductor diameter
mm
Density
kg/m
Offered
Copper Flat Bars
The following copper flat bars will be used as earthing
conductors:
1.5.3.
Cross section area
Dimensions
Density
kg/m
Cross section area
mm2
Dimensions
Density
kg/m
Cross section area
mm2
Dimensions
Density
mm2
mm x mm
mm x mm
mm x mm
kg/m
Copper Cables
The following PVC single-core copper cables will be used as
earthing conductors:
Cross-section area
Section VI – Requirements
Environmental Guidelines for Contractors
mm2
Page 45 of 677
C.
EARTHING AND LIGHTNING PROTECTION
UNIT
DATA
Required
1.6.
1.6.1.
Cross-section area
mm2
Cross-section area
mm2
Offered
Earth Electrodes
Lead-sheathed stranded copper conductors
The following lead-sheathed stranded copper conductor will
be used as earth electrodes:
Thickness of lead sheath
mm
Copper cross-section area
mm2
Number of wires
pcs
Diameter of each wire
mm
Conductor diameter
mm
Density
kg/m
Thickness of lead sheath
mm
Copper cross-section area
mm2
Number of wires
pcs
Diameter of each wire
mm
Conductor diameter
mm
Density
kg/m
Thickness of lead sheath
mm
Copper cross-section area
mm2
Diameter of each wire
mm
Section VI – Requirements
Environmental Guidelines for Contractors
Page 46 of 677
C.
EARTHING AND LIGHTNING PROTECTION
UNIT
DATA
Required
1.6.2.
1.6.3.
Conductor diameter
mm
Density
kg/m
Offered
Earth rod
Manufacturer
Length
Diameter
Material (copper, stainless steel)
m
mm
Stainless steel electrodes
The following steel flat bars will be used as earth electrodes:
Cross-section area
dimensions
Density
mm2
mm x mm
kg/m
1.7.
Connections
Mode of Connection in the Earthing Systems:
Between earthing conductors and earth electrodes
Crossing of earth electrodes
Brazed
Compressio
n
2.
LIGHTNING PROTECTION
2.1.
Manufacturers
2.2.
Standard Applied:
Protection of structures against lightning
Section VI – Requirements
Environmental Guidelines for Contractors
Page 47 of 677
C.
EARTHING AND LIGHTNING PROTECTION
UNIT
DATA
Required
Offered
IEC 62305
2.3.
Manufacturer
Cross-section area
mm2
Thickness of lead-sheath
mm
Supports
Conductor supports of the lightning protection system
2.4.
3.
Type
Earth rod
Manufacturer
Length
Diameter
Material (copper, stainless steel)
m
mm
Type test certificate (to be issued by independent laboratory
or independently witnessed type test certificate available)
yes
Section VI – Requirements
Environmental Guidelines for Contractors
Page 48 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
1.
Offered
LINE DIFFERENTIAL PROTECTION AND BACK-UP DISTANCE
(87/21L)
Manufacturer
Type reference
Relay design (microprocessor based, numerical)
Numerical
Auxiliary voltage range (Vn = 110Vdc)
Vdc
88150
Input frequency range (50Hz nominal)
Hz
47.552.5
Differential protection requirements
Phase segregated protection
Yes
Ratio and Vector correction for CTs
Yes
Adjustable biased differential protection characteristic
Yes
Sensitivity:
-
For phase faults
-
For earth faults
Operating time
ms
<30
Distance protection requirements
3 zone ph-ph & ph-E
Yes
Phase fault & Earth fault characteristic shapes (Mho, Quad)
Quad
Operating time
<30ms
SOTF
Yes
Power swing blocking (depending on relaying point in the power
Yes
system)
Voltage transformer supervision
Yes
Time delays for all zones
Yes
Zone enable/disable for all zones
Yes
Other requirements
DEF comparison function
Yes
Directional protection 67/67N
Overcurrent/Earth fault 50/51/50N/51N
Stub protection 50STB
Section VI – Requirements
Environmental Guidelines for Contractors
Yes
Page 49 of 677
D.
UNIT
PROTECTION AND INDICATION SYSTEM
DATA
Required
Offered
No
Circuit breaker failure. 50BF- (application dependent))
Thermal overload, 49
TBA
Auto Reclose 79 (application dependent)
Yes
Under/Over Voltage
Integral intertrip send and receive, with external input interface
Yes
Event recording function
Yes
Disturbance recording function
Yes
Fault locator function
Yes
Integral LCD operator interface for local interrogation
Yes
Programmable scheme logic
Yes
PC based configuration software for HMI, settings, logic and data
Yes
recorder.
1.1
Programme name
1.2
Included / Separate
Tripping contacts rating
Carry continuous
Make
5A
30A
maximum
for
Yes
0.2s
Break
dc
50W resistive
25W
inductive(L/R40ms)
Self checking facility
Yes
Integral intertrip send and receive, with external input interface
Yes
Communications
Protection
Direct optical fibre
TBA
1550nm single mode distance (km)
1300nm single mode distance (km)
Section VI – Requirements
Environmental Guidelines for Contractors
Page 50 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Offered
820nm multi-mode distance (km)
Others supported
TBA
G703.1
X21
Control
Communication ports (Front/rear etc)
Physical links (RS485/Fibre optic)
Protocols supported
IEC 60870-5-103
Others (please state)
Yes
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-
Yes
2
Relative Humidity
Operation at 93%
Yes
Tested to IEC 60068-2-3 with severity class 56 days
Yes
Enclosure
IEC 60529
IP50
Yes
IEC 60255-21-1
Yes
Shock and bump IEC 60255-21-2
Yes
Seismic
Yes
Mechanical Environment
Vibration
IEC 60255-21-3
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
Section VI – Requirements
Environmental Guidelines for Contractors
Page 51 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Offered
Yes
Electrostatic Discharge
IEC 60255-22-2 severity class III
Yes
Radiated Electromagnetic Field Disturbance
IEC 60255-22-3 severity class III
Yes
Test 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
1.3
2.
DISTANCE (21)
Manufacturer
Type reference
Relay design (microprocessor based, numerical)
Numerical
Auxiliary voltage range (Vn = 110Vdc)
Vdc
88150
Input frequency range (50Hz nominal)
Hz
47.552.5
Distance protection requirements
Minimum 3 zone ph-ph & ph-E
Yes
Phase fault & Earth fault characteristic shapes (Mho, Quad)
Nominal Z1 Operating time
<30ms
SOTF
Yes
Power swing blocking
Yes
Voltage transformer supervision
Yes
Time delays for all zones
Yes
Zone enable/disable for all zones
Yes
Other supported Functions
DEF comparison function
Yes
Directional protection 67/67N
Overcurrent/Earth fault 50/51/50N/51N
Section VI – Requirements
Environmental Guidelines for Contractors
Page 52 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Offered
Yes
Stub protection 50STB
Circuit breaker failure. 50BF- (application dependent))
TBA
Thermal overload, 49
Auto Reclose 79 (application dependent)
Under/Over Voltage
Integral intertrip send and receive, with external input interface
Yes
Event recording function
Yes
Disturbance recording function
Yes
Fault locator function
Yes
Integral LCD operator interface for local interrogation
Yes
Programmable logic
Yes
PC based configuration software for HMI, settings, logic and data
Yes
recorder.
2.1
Programme name
2.2
Included / Separate
Tripping contacts rating details
Carry continuous
Make
Break
A
A / time
dc
W rest.
W & L/R
Self checking facility
Yes
Communications
Protection
Direct optical fibre
2.3
TBA
1550nm single mode distance (km)
Section VI – Requirements
Environmental Guidelines for Contractors
Page 53 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
2.4
1300nm single mode distance (km)
2.5
820nm multi-mode distance (km)
Others supported
2.6
2.7
G703.1
2.8
X21
Offered
TBA
Control
Communication ports (Front/rear etc)
Physical links (RS485/Fibre optic)
Protocols supported
IEC 61850
Others (please state)
Yes
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
IEC 60255-21-1
Yes
Shock and bump IEC 60255-21-2
Yes
Seismic
Yes
Mechanical Environment
Vibration
IEC 60255-21-3
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
Section VI – Requirements
Environmental Guidelines for Contractors
Page 54 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Offered
Yes
Electrostatic Discharge
IEC 60255-22-2 severity class III
Yes
Radiated Electromagnetic Field Disturbance
IEC 60255-22-3 severity class III
Yes
Test 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
2.9
3.
MAIN TRANSFORMER / REACTOR BIASED DIFFERENTIAL
PROTECTION 87 including HV and LV REF
Manufacturer
Type reference
Relay design (microprocessor based, numerical)
3.1
numerical
Auxiliary voltage range (Vn = 110Vdc)
Vdc
88150
Input frequency range (50Hz nominal)
Hz
47.552.5
ms
<25
Biased Differential function
Operation time at 5 times setting
Adjustable bias characteristics
Yes
Differential current stage Id >>
Yes
Magnetisation inrush restraint
Yes
5th” Harmonic restraint
Yes
CT ratio and vector group compensation
Yes
Section VI – Requirements
Environmental Guidelines for Contractors
Page 55 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
3.2
Offered
Restricted earth fault function
HV REF
Yes
LV REF
Yes
Principle of REF operation
High impedance/Low impedance
Operation time at 5 times settings
Low
ms
<30
Other requirements
Phase overcurrent function 50/51 (requirement depending on
No
application)
Earth fault protection 51N (requirement depending on application)
No
Integral LCD operator interface for local interrogation
Yes
Programmable logic
Yes
PC based configuration software for HMI, settings, logic and data
recorder.
3.3
Programme name
3.4
Included / Separate
Tripping contacts rating details
Carry continuous
Make
Break
A
A / time
dc
W rest.
W & L/R
Event recording function
Yes
Disturbance recording function
Yes
Section VI – Requirements
Environmental Guidelines for Contractors
Page 56 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Offered
Yes
Fault recording function
Self monitoring and alarm facility
Communications
Control
Communication ports (Front/rear etc)
Physical links (RS485/Fibre optic)
Protocols supported
IEC 61850
Others (please state)
Yes
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
IEC 60255-21-1
Yes
Shock and bump IEC 60255-21-2
Yes
Seismic
Yes
Mechanical Environment
Vibration
Section VI – Requirements
Environmental Guidelines for Contractors
IEC 60255-21-3
Page 57 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Offered
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
IEC 60255-22-2 severity class III
Yes
Radiated Electromagnetic Field Disturbance
IEC 60255-22-3 severity class III
Yes
Test method A, 27MHz through 500MHz
Electromagnetic Emissions
IEC 60255-25
Yes
Fast Transient Disturbance
IEC 60255-22-4 severity level IV
Type test certificate provided
4.
Yes
Yes
HV CONNECTIONS DIFFERENTIAL PROTECTION 87HC
Manufacturer
Type reference
Section VI – Requirements
Environmental Guidelines for Contractors
Page 58 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Relay design (microprocessor based, numerical)
Offered
numerical
Auxiliary voltage range (Vn = 110Vdc)
Vdc
88150
Input frequency range (50Hz nominal)
Hz
47.552.5
Principle of operation
High impedance/Low impedance
4.1
High or Low
Biased Differential function (Low Impedance)
No of separate CT inputs
Operation time at 5 times setting
4.2
3
ms
<25
Adjustable bias characteristics
Yes
Differential current stage Id >>
Yes
Magnetisation inrush restraint
Yes
5th” Harmonic restraint
Yes
CT ratio and vector group compensation
Yes
Differential function (High Impedance)
minimum fault setting (% of CT rating)
%
Yes
Operating time at 5 x setting
ms
<30
Non Linear Resistors (Metrosils) integral Y/N
4.3
Integral LCD operator interface for local interrogation
Yes
Programmable logic
Yes
Section VI – Requirements
Environmental Guidelines for Contractors
Page 59 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Offered
PC based configuration software for HMI, settings, logic and data
recorder.
4.4
Programme name
4.5
Included / Separate
Tripping contacts rating details
Carry continuous
A
Make
Break
A / time
dc
W rest.
W & L/R
Event recording function
Yes
Disturbance recording function
Yes
Fault recording function
Yes
Self monitoring and alarm facility
Communications
Control
Communication ports (Front/rear etc)
Physical links (RS485/Fibre optic)
Protocols supported
IEC 61850
Others (please state)
Yes
Type Tests
Atmospheric Environment
Operation -25C and 55C for 96hrs, IEC 60068-2-1
Section VI – Requirements
Environmental Guidelines for Contractors
Yes
Page 60 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Transport/storage -25C and 70C for 96hrs, IEC 60068-2-
Offered
Yes
2
Relative Humidity
Operation at 93%
Yes
Tested to IEC 60068-2-3 with severity class 56 days
Yes
Enclosure
IEC 60529
IP50
Yes
IEC 60255-21-1
Yes
Shock and bump IEC 60255-21-2
Yes
Seismic
Yes
Mechanical Environment
Vibration
IEC 60255-21-3
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
IEC 60255-22-2 severity class III
Yes
Radiated Electromagnetic Field Disturbance
IEC 60255-22-3 severity class III
Section VI – Requirements
Environmental Guidelines for Contractors
Page 61 of 677
D.
UNIT
PROTECTION AND INDICATION SYSTEM
DATA
Required
Test method A, 27MHz through 500MHz
Offered
Yes
Electromagnetic Emissions
IEC 60255-25
Yes
Fast Transient Disturbance
IEC 60255-22-4 severity level IV
Yes
Type test certificate provided
5.
LOW IMPEDANCE BUSBAR PROTECTION
BREAKER FAILURE PROTECTION
Yes
INCLUDING
Manufacturer
Type reference
Relay design (static, microprocessor-based, numerical)
Numerical
Auxiliary voltage range (Vn = 110Vdc)
Vdc
88150
Input frequency range (50Hz nominal)
Hz
47.552.5
State principle of operation, i.e. low impedance
Integral check zone feature
Distributed Central and Bay Modules or Integrated (Dist / Int)
Low Z
Yes
Either
Maximum number of Bays
CT saturation detector and stabilisation
Integral CT supervision
CT matching functions
Phase segregated protection
Sensitivity
Section VI – Requirements
Environmental Guidelines for Contractors
Page 62 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
1.
Phase faults
A sec’y
2.
Earth faults
A sec’y
Operating time at 5 x fault setting
ms
Two stage Circuit Breaker Failure
Offered
30
Yes
Adjustable current setting
Adjustable time delays per stage
Other requirements
PC based configuration software for HMI, settings, logic and data
recorder.
5.1
Programme name
5.2
Included / Separate
Yes
Tripping contacts rating details
Carry continuous
Make
Break
A
A / time
dc
W rest.
W & L/R
Event recording function
Yes
Disturbance recording function
Yes
Self monitoring and alarm facility
Communications
Bay to central Module communication
f.o.
Integral LCD operator interface for local interrogation
Yes
Control
Communication ports (Front/rear etc)
Section VI – Requirements
Environmental Guidelines for Contractors
Page 63 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Offered
Physical links (RS485/Fibre optic)
Protocols supported
IEC 61850
Others (please state)
Yes
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
IEC 60255-21-1
Yes
Shock and bump IEC 60255-21-2
Yes
Seismic
Yes
Mechanical Environment
Vibration
IEC 60255-21-3
Insulation
Rated insulation
1000V high impedance protection CT inputs
250V for other circuits
Yes
1000V open contact withstand
Yes
Section VI – Requirements
Environmental Guidelines for Contractors
Page 64 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Offered
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
IEC 60255-22-2 severity class III
Yes
Radiated Electromagnetic Field Disturbance
IEC 60255-22-3 severity class III
Yes
Test 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
6.
7.
MULTI-FUNCTIONAL DIRECTIONAL OVERCURRENT & EARTH
FAULT PROTECTION {67/67N/50/51/50N/51N)
Manufacturer
Type reference
Relay design (static, microprocessor-based, numerical)
Numerical
Auxiliary voltage range (Vn = 110Vdc)
Vdc
88150
Input frequency range (50Hz nominal)
Hz
47.552.5
Number of phase CT inputs
Section VI – Requirements
Environmental Guidelines for Contractors
Page 65 of 677
D.
UNIT
PROTECTION AND INDICATION SYSTEM
DATA
Required
Offered
Number of earth fault CT inputs
Number of VT inputs
Characteristics curves conforming to IEC 60255, ANSI
Yes
Number of overcurrent functions (e.g. No. lowset, highset, IDMTL)
Number of earth fault functions
Number of group settings
Earth fault element suitable of high impedance REF (with external
Yes
resistor)
Other functions provided
Thermal overload 49
Y/N
U/O Voltage 27/59
Y/N
NVD 59N
Y/N
Integral metering functions
No. of opto-isolator inputs
No of outputs
Programmable logic
Yes
Event and Fault recording functions
Self-monitoring facility
PC based configuration software for HMI, settings, logic and data
recorder.
7.1
Programme name
7.2
Included / Separate
Yes
Tripping contacts rating details
Carry continuous
Make
Break
A
A / time
dc
W rest.
W & L/R
Communications
Integral operator interface for local interrogation
Yes
Control
Section VI – Requirements
Environmental Guidelines for Contractors
Page 66 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Offered
Communication ports (Front/rear etc)
Physical links (RS485/Fibre optic)
Protocols supported
IEC 61850
Yes
Others (please state)
Type Tests
Atmospheric Environment
Operation -25C and 55C for 96hrs, IEC 60068-2-1
Yes
Transport/storage -25C and 70C for 96hrs, IEC 60068-2-2
Yes
Relative Humidity
Operation at 93%
Yes
Tested to IEC 60068-2-3 with severity class 56 days
Yes
Enclosure
IEC 60529
IP50
Yes
IEC 60255-21-1
Yes
Shock and bump IEC 60255-21-2
Yes
Seismic
Yes
Mechanical Environment
Vibration
IEC 60255-21-3
Insulation
Rated insulation
1000V high impedance protection CT inputs
250V for other circuits
Section VI – Requirements
Environmental Guidelines for Contractors
Yes
Page 67 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
1000V open contact withstand
Offered
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
IEC 60255-22-2 severity class III
Yes
Radiated Electromagnetic Field Disturbance
IEC 60255-22-3 severity class III
Yes
Test 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
8.
9.
MULTI-FUNCTIONAL FEEDER MANAGEMENT RELAY
{67/67N,50/51,50N/51N, 27, 59, 25, 79, CONTROL, METERING)
Manufacturer
Type reference
Relay design (static, microprocessor-based, numerical)
Auxiliary voltage range (Vn = 110Vdc)
Section VI – Requirements
Environmental Guidelines for Contractors
Numerical
Vdc
88150
Page 68 of 677
D.
UNIT
PROTECTION AND INDICATION SYSTEM
DATA
Required
Input frequency range (50Hz nominal)
Hz
Offered
47.552.5
Number of phase CT inputs
Number of earth fault CT inputs
Number of VT inputs
Characteristics curves conforming to IEC 60255, ANSI
IEC
Number of overcurrent functions (e.g. No. lowset, highset, IDMTL)
Number of earth fault functions
Number of group settings
Earth fault element suitable of high impedance REF (with external
Yes
resistor)
Other functions provided
9.1
Thermal overload 49
Y/N
U/O Voltage 27/59
Y/N
NVD 59N
Y/N
Check Synch 25
Y/N
Auto-reclose 79
Y/N
Feeder Control (where applicable)
Integral LCD operator interface for local control and interrogation
Yes
Full control of circuit bay
Yes
Close/Open of circuit breakers
Close/Open of Disconnectors/Earth Switches
Switching status
Interlocking facilities
Plant status
Active circuit line diagram
Integral metering functions
No. of opto-isolator inputs
No. of outputs
Programmable logic
Yes
Event and Fault recording functions
Self-monitoring facility
PC based configuration software for HMI, settings, logic and data
recorder.
Section VI – Requirements
Environmental Guidelines for Contractors
Page 69 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
9.2
Programme
9.3
Included / Separate
Offered
Yes
Tripping contacts rating details
Carry continuous
A
Make
Break
A / time
dc
W rest.
W & L/R
Communications
Control & Monitoring
Communication ports (Front/rear etc)
Physical links (RS485/Fibre optic)
Protocols supported
IEC 61850
Yes
Others (please state)
Type Tests
Atmospheric Environment
Operation -25C and 55C for 96hrs, IEC 60068-2-1
Yes
Transport/storage -25C and 70C for 96hrs, IEC 60068-2-
Yes
2
Relative Humidity
Operation at 93%
Yes
Tested to IEC 60068-2-3 with severity class 56 days
Yes
Enclosure
Section VI – Requirements
Environmental Guidelines for Contractors
Page 70 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
IEC 60529
IP50
Yes
IEC 60255-21-1
Yes
Shock and bump IEC 60255-21-2
Yes
Seismic
Yes
Offered
Mechanical Environment
Vibration
IEC 60255-21-3
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
IEC 60255-22-2 severity class III
Yes
Radiated Electromagnetic Field Disturbance
IEC 60255-22-3 severity class III
Yes
Test method A, 27MHz through 500MHz
Electromagnetic Emissions
IEC 60255-25
Yes
Fast Transient Disturbance
IEC 60255-22-4 severity level IV
Type test certificate provided
Yes
Yes
10.
Section VI – Requirements
Environmental Guidelines for Contractors
Page 71 of 677
D.
UNIT
PROTECTION AND INDICATION SYSTEM
DATA
Required
11.
Offered
OVERCURRENT & EARTH FAULT PROTECTION
(50/51/50N/51N)
Manufacturer
Type reference
Relay design (static, microprocessor-based, numerical)
Numerical
Auxiliary voltage range (Vn = 110Vdc)
Vdc
88150
Input frequency range (50Hz nominal)
Hz
47.552.5
Number of phase CT inputs
Number of earth fault CT inputs
Characteristics curves conforming to IEC 60255, ANSI
Yes
Number of overcurrent functions (e.g. No. lowset, highset, IDMTL)
Number of earth fault functions
Number of group settings
Earth fault element suitable of high impedance REF (with external
Yes
resistor)
Other functions provided
Thermal overload 49
Y/N
50BF
Y/N
Integral metering functions
No. of opto-isolator inputs
Programmable logic
Yes
Event and Fault recording functions
Self-monitoring facility
PC based configuration software for HMI, settings, logic and data
recorder.
11.1
Programme name
Section VI – Requirements
Environmental Guidelines for Contractors
Page 72 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
11.2
Included / Separate
Offered
Yes
Tripping contacts rating details
Carry continuous
A
Make
Break
A / time
dc
W rest.
W & L/R
Communications
Integral LCD operator interface for local interrogation
Yes
Control
Communication ports (Front/rear etc)
Physical links (RS485/Fibre optic)
Protocols supported
IEC 61850
Yes
Others (please state)
Type Tests
Atmospheric Environment
Operation -25C and 55C for 96hrs, IEC 60068-2-1
Yes
Transport/storage -25C and 70C for 96hrs, IEC 60068-2-
Yes
2
Relative Humidity
Operation at 93%
Yes
Tested to IEC 60068-2-3 with severity class 56 days
Yes
Enclosure
Section VI – Requirements
Environmental Guidelines for Contractors
Page 73 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
IEC 60529
IP50
Yes
IEC 60255-21-1
Yes
Shock and bump IEC 60255-21-2
Yes
Seismic
Yes
Offered
Mechanical Environment
Vibration
IEC 60255-21-3
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
IEC 60255-22-2 severity class III
Yes
Radiated Electromagnetic Field Disturbance
IEC 60255-22-3 severity class III
Yes
Test method A, 27MHz through 500MHz
Electromagnetic Emissions
IEC 60255-25
Yes
Fast Transient Disturbance
IEC 60255-22-4 severity level IV
Type test certificate provided
Yes
Yes
12.
Section VI – Requirements
Environmental Guidelines for Contractors
Page 74 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
13.
Offered
HIGH IMPEDANCE DIFFERENTIAL PROTECTION (87)
Manufacturer
Type reference
Relay design (static, microprocessor-based, numerical, E-Mech)
Numerical
minimum fault setting (% of CT rating)
%
Operating time at 5 x setting
ms
Non Linear Resistors (Metrosils) integral Y/N
Self monitoring (excluding E-Mech)
Yes
PC based configuration software for HMI, settings, logic and data
recorder.
13.1
Programme name
13.2
Included / Separate
Tripping contacts rating details
Carry continuous
Make
Break
A
A / time
dc
Section VI – Requirements
Environmental Guidelines for Contractors
W rest.
Page 75 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Offered
W & L/R
Communications (numerical relays)
Integral LCD operator interface for local interrogation
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
IEC 60255-21-1
Yes
Shock and bump IEC 60255-21-2
Yes
Seismic
Yes
Mechanical Environment
Vibration
Section VI – Requirements
Environmental Guidelines for Contractors
IEC 60255-21-3
Page 76 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Offered
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
IEC 60255-22-2 severity class III
Yes
Radiated Electromagnetic Field Disturbance
IEC 60255-22-3 severity class III
Yes
Test method A, 27MHz through 500MHz
Electromagnetic Emissions
IEC 60255-25
Yes
Fast Transient Disturbance
IEC 60255-22-4 severity level IV
Type test certificate provided
14.
Yes
Yes
AUTO-RECLOSE RELAY (79)
Manufacturer
Type reference
Relay design (microprocessor based, numerical)
Section VI – Requirements
Environmental Guidelines for Contractors
Numerical
Page 77 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Auxiliary voltage range (Vn = 110Vdc)
Vdc
88150
Input frequency range (50Hz nominal)
Hz
47.552.5
Offered
Auto-Reclose Function requirements
No of CB that can be controlled
2
1ph and 3ph AR sequences
1ph+3ph
Integrated/External Check Synch
Other requirements
No of Opto-isolator inputs
No of output contacts
Integral operator interface for local interrogation
Yes
Programmable scheme logic
Yes
PC based configuration software for HMI, settings, logic and data
Yes
recorder.
14.1
Programme name
14.2
Included / Separate
Tripping contacts rating details
Carry continuous
Make
Break
A
A / time
dc
W rest.
W & L/R
Self checking facility
Yes
Communications
Control
Communication ports (Front/rear etc)
Physical links (RS485/Fibre optic)
Protocols supported
Section VI – Requirements
Environmental Guidelines for Contractors
Page 78 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
IEC 61850
others
Offered
Yes
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
IEC 60255-21-1
Yes
Shock and bump IEC 60255-21-2
Yes
Seismic
Yes
Mechanical Environment
Vibration
IEC 60255-21-3
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
IEC 60255-22-2 severity class III
Yes
Radiated Electromagnetic Field Disturbance
IEC 60255-22-3 severity class III
Yes
Test method A, 27MHz through 500MHz
Electromagnetic Emissions
IEC 60255-25
Yes
Fast Transient Disturbance
IEC 60255-22-4 severity level IV
Section VI – Requirements
Environmental Guidelines for Contractors
Yes
Page 79 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Type test certificate provided
Offered
Yes
14.3
15.
TRIP CIRCUIT SUPERVISION
Manufacturer
Type reference
Relay design (Electro-Mech, static, numerical)
Auxiliary voltage range (Vn = 110Vdc)
Vdc
Operating time
ms
88150
Supervision of the whole trip circuit - CB open and closed.
Yes
Relay operated indicator
Yes
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
IEC 60255-21-1
Yes
Shock and bump IEC 60255-21-2
Yes
Seismic
Yes
Mechanical Environment
Vibration
IEC 60255-21-3
Insulation
Rated insulation
Section VI – Requirements
Environmental Guidelines for Contractors
Page 80 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Offered
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
IEC 60255-22-2 severity class III
Yes
Radiated Electromagnetic Field Disturbance
IEC 60255-22-3 severity class III
Yes
Test 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
15.1
16.
MULTI-CONTACT TRIPPING RELAYS
Manufacturer
Type reference
Operating time
ms
<12
Auxiliary voltage range (Vn = 110Vdc)
Vdc
88150
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
Section VI – Requirements
Environmental Guidelines for Contractors
Page 81 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Offered
Tripping contacts rating details
Carry continuous
A
Make
Break
A / time
dc
W rest.
W & L/R
Relay operated indicator type
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
IEC 60255-21-1
Yes
Shock and bump IEC 60255-21-2
Yes
Seismic
Yes
Mechanical Environment
Vibration
IEC 60255-21-3
Insulation
Rated insulation
1000V high impedance protection CT inputs
250V for other circuits
Yes
1000V open contact withstand
Yes
Section VI – Requirements
Environmental Guidelines for Contractors
Page 82 of 677
D.
PROTECTION AND INDICATION SYSTEM
UNIT
DATA
Required
Offered
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
IEC 60255-22-2 severity class III
Yes
Radiated Electromagnetic Field Disturbance
IEC 60255-22-3 severity class III
Yes
Test method A, 27MHz through 500MHz
Electromagnetic Emissions
IEC 60255-25
Yes
Fast Transient Disturbance
IEC 60255-22-4 severity level IV
Type test certificate provided
Section VI – Requirements
Environmental Guidelines for Contractors
Yes
Yes
Page 83 of 677
E.
TARIFF METERING SYSTEM
UNIT
DATA
Required
17. 1
1.1
Offered
TARIFF METER
Manufacturer
Model
1.2
Construction
Measuring Principle
3ph, 4wire
Type
Numerical
≥7
Display/Reading digits
Backlit LCD
1.3
1.5
Auxiliary voltage range
DC (Vn = 110Vdc)
Vdc
88125
AC
Vac
230
A
1
pu
1.2
V
110
pu
0.8 – 1.15
Analogue Inputs
Current (In)
Current measuring range
Voltage (Vn)
Voltage measuring range
Power consumption (burden)
1.6
1.7
Yes
VA
Accuracy Class
Watt hour (IEC 602053-22)
0.2s
VAr hour (IEC 602053-23)
2.0
Measurements
Section VI – Requirements
Environmental Guidelines for Contractors
Page 84 of 677
E.
TARIFF METERING SYSTEM
UNIT
DATA
Required
Offered
kWh, kVArh
kW, kVAr
V, I
Four quadrant reactive energy
Max Demand
THD
1.8
Outputs
Pulsed Outputs (IEC 62053-31)
1.9
3 (min)
Data Logging
Integral Logging/Storage function
Duration
180
Channels
4
Programmable Periods
y
Inputs from external meters
1.10
days
y/n
Other functions
Battery Back-up
y/n
y
Back-up duration
days
≥14
GPS clock
y/n
y
Self checking/monitoring facility
y/n
y
Dual supply changeover (VT)
y/n
y
Section VI – Requirements
Environmental Guidelines for Contractors
Page 85 of 677
E.
TARIFF METERING SYSTEM
UNIT
DATA
Required
1.11
Offered
Communications
Communication ports (Front/rear etc)
RS232
RS485
y
Optical (IEC 62056-21)
y
Ethernet
y
Protocols supported
IEC 62056-21, DLMS
others
y
Type Tests
1.12
Atmospheric Environment (62052-11)
Operating Range: -10C to 45C
y
Operation -25C to 55C
Transport/storage -25C to 70C
1.13
1.14
Relative Humidity (62052-11)
Annual mean <75%
y
30 days over one year: 95%
y
Enclosure
IEC 60529
1.15
1.16
y
IP51
Mechanical Environment (62052-11)
Shock test
IEC 60068-2-27
Vibration
IEC 60068-2-6
Insulation Strength (IEC 62052-11)
y
y
Dielectric Tests-
Section VI – Requirements
Environmental Guidelines for Contractors
Page 86 of 677
E.
UNIT
TARIFF METERING SYSTEM
DATA
Required
Offered
Impulse voltage (surge) as per IEC 61000-4-5
1.17
Electromagnetic compatibility IEC 62052-11
y
Electrostatic Discharge to IEC 61000-4-2
Immunity to Electromagnetic Fields to IEC 61000-4-3
Fast Transient Burst Test to IEC 61000-4-4
Immunity to conducted disturbance by RF fields to
IEC 61000-4-6
Damped Oscillatory Waves to IEC 6100-4-12
Radio Interference Suppression to
1.18
Type test certificate provided
Section VI – Requirements
Environmental Guidelines for Contractors
CISPR 22 class B
y
Page 87 of 677
F.
FAULT MONITORING SYSTEM
UNIT
DATA
Required
1
Offered
FAULT MONITORING SYSTEM
1.1
Manufacturer
1.2
Type reference
DAU unit type
Master Station type
HMI type
Printer type
1.3
Auxiliary voltage range (Vn = 110Vdc)
1.4
Analogue Inputs
8
1.5
Event inputs
16
1.6
A/D converter
bit
16bit
1.7
Current input max amplitude
In
30
1.8
Current/voltage accuracy
% fsd
≤0.5
1.9
Scan Rate
Analogue Channel
Hz
≥4000
Event Channel
Hz
≥2000
ms
1
Pre Fault
ms
≥500
Post Fault
ms
≥2000
1.10
Time stamp resolution
1.11
Recording range
1.12
Vdc
88150
Trigger response time
Section VI – Requirements
Environmental Guidelines for Contractors
Page 88 of 677
F.
FAULT MONITORING SYSTEM
UNIT
DATA
Required
Offered
Analogue
Event
1.13
Memory
RAM (Non Volatile)
Mb
≥256
HDD
Mb
≥500
days
≥14
1.14
Battery Back-up duration
1.15
GPS clock input
1.16
System Software
1.17
Self checking facility
1.18
Communications
Yes
Yes
Communication ports (Front/rear etc)
RS232
RS485
RJ45
Other
Protocols supported
IEC 61850
others
Type Tests
1.19
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
Section VI – Requirements
Environmental Guidelines for Contractors
Page 89 of 677
F.
FAULT MONITORING SYSTEM
UNIT
DATA
Required
1.20
1.21
Relative Humidity
Operation at 93%
Yes
Tested to IEC 60068-2-3 with severity class 56 days
Yes
Enclosure
IEC 60529
1.22
IP50
Yes
IEC 60255-21-1
Yes
Shock and bump IEC 60255-21-2
Yes
Seismic
Yes
Mechanical Environment
Vibration
1.23
Offered
IEC 60255-21-3
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
1.24
Yes
Electromagnetic compatibility
1MHz Burst disturbance test,
IEC 60255-22-1 severity class III
Section VI – Requirements
Environmental Guidelines for Contractors
Yes
Page 90 of 677
F.
FAULT MONITORING SYSTEM
UNIT
DATA
Required
Offered
Electrostatic Discharge
IEC 60255-22-2 severity class III
Yes
Radiated Electromagnetic Field Disturbance
IEC 60255-22-3 severity class III
Yes
Test method A, 27MHz through 500MHz
Electromagnetic Emissions
IEC 60255-25
Yes
Fast Transient Disturbance
IEC 60255-22-4 severity level IV
1.25
Type test certificate provided
Section VI – Requirements
Environmental Guidelines for Contractors
Yes
Yes
Page 91 of 677
G. 11kV XLPE INSULATED CABLE SYSTEM (with solid
bonding)
UNIT
DATA
Required
Offered
18.
1
GENERAL
1.1
Name of manufacturer
1.2
Location of manufacturing site
1.3
Manufacturers Quality Certification
Certified by (Company Name)
Certification valid till (year)
1.4
Circuit rating required
1.5
General description of cable
1.6
ISO 9001
kVA
500
number of cores
system voltage
kV
conductor size
mm2
Insulation Type
XLPE
metal sheath type
Lead
oversheath type
1or 3
11
MDPE
Year of first commercial operation of cable type
2
INSULATION CO-ORDINATION
2.1
Highest system voltage (Um) (insulation class)
kV
12
2.2
Nominal voltage between conductors (U)
kV
11
2.3
Rated frequency
Hz
50
2.4
Nominal voltage between conductor and sheath (Uo)
kV
6.35
2.5
Rated impulse withstand voltage (Up)
kV
95
2.6
Rated short duration power frequency withstand voltage
kV
17
Section VI – Requirements
Environmental Guidelines for Contractors
Page 92 of 677
G. 11kV XLPE INSULATED CABLE SYSTEM (with solid
bonding)
UNIT
DATA
Required
3
3.1
Offered
RATINGS
Maximum continuous direct-buried current rating, assuming,
Soil thermal resistivity of 2.0K.m/W
Flat spaced configuration, phase spacing of 250mm
Special bonding of metal sheaths
For,
3.2
Guaranteed Current Rating (Single Circuit in Trench)
A
Guaranteed Current Rating (Double Circuit in one
Trench, distance between middle phases, s = 1500 mm)
A
Ground temperature at burial depth
Calculation Method
oC
IEC 60287
Maximum continuous in-air current rating, assuming,
Air temperature (in shade) of 35 °C
Special bonding of metal sheaths
Flat spaced configuration, group/phase spacing of
150mm
Thermally independent of other cable circuits
For,
3.3
Guaranteed Current Rating (single circuit)
Calculation Method
Maximum permissible core temperature for continuous
A
°C
90
operation
3.4
Short circuit capacity for 1 sec
Short circuit current
kA
As per
IEC60502
3.5
3.5.1
Permissible maximum sheath temperature
oC
200
Permissible maximum conductor temperature
oC
250
Permissible emergency overload
Applied on 100% continuous load
Emergency current rating
Maximum emergency temperature
Allowable duration/operation
hours
Allowable total duration/annum
hours
Maximum average duration/annum on total life of cable
hours
Section VI – Requirements
Environmental Guidelines for Contractors
A
oC
Page 93 of 677
G. 11kV XLPE INSULATED CABLE SYSTEM (with solid
bonding)
UNIT
DATA
Required
3.5.2
3.5.3
Offered
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
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
CONSTRUCTION FEATURES
4.0
4.1
Conductor
Material
Nominal cross-section
Shape of conductor
Cu or Al
mm2
circular
4.2
Overall diameter
Waterblocking method
Semiconducting binder tape
mm
Tape/yarn
yes
Conductor screen
Type of material
Fully bonded
semicon. XLPE
4.3
Nominal thickness
mm
Minimum thickness
mm
Nominal overall diameter
mm
Compound Identification Reference
yes
Insulation
Material
Nominal thickness
mm
Minimum thickness
mm
Nominal overall diameter
mm
Section VI – Requirements
Environmental Guidelines for Contractors
XLPE
Page 94 of 677
G. 11kV XLPE INSULATED CABLE SYSTEM (with solid
bonding)
UNIT
DATA
Required
4.4
Maximum continuous operating temperature
Compound Identification Reference
Maximum stress at nominal voltage
At conductor screen
kV/mm
At insulation screen
kV/mm
Maximum stress at impulse voltage
At conductor screen
kV/mm
At insulation screen
kV/mm
oC
Offered
90
yes
Insulation screen
Type of material
Nominal thickness
mm
Nominal overall diameter
mm
Compound Identification Reference
Indelible ink marking on screen
Fully bonded
semicon. XLPE
4.5
4.6
4.7
yes
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
Bedding for moisture absorption
Type and material
Nominal thickness
mm
Minimum thickness
mm
Nominal overall diameter over bedding
mm
Metallic screen
Type and material
Nominal thickness
mm
Minimum thickness
mm
Wire diameter
No.
Section VI – Requirements
Environmental Guidelines for Contractors
Copper wire
Page 95 of 677
G. 11kV XLPE INSULATED CABLE SYSTEM (with solid
bonding)
UNIT
DATA
Required
4.8
4.9
4.10
4.11
Nominal diameter over the screen
mm
Cross sectional area of screen
mm2
Short time current density (1 sec)
Offered
kA/mm2
Bedding/Binder tape
Type and material
Nominal thickness
mm
Minimum thickness
mm
Nominal overall diameter over bedding
mm
Metallic sheath
Type and material
Nominal thickness
mm
Minimum thickness
mm
Nominal diameter over the sheath
mm
Cross sectional area of sheath
mm2
Short time current density (1 sec.)
Lead-alloy 1/2C
kA/mm2
Protective anti-corrosion external sheath covering
Bitumen undercoat layer
Type and material
MDPE
Color
Black
Nominal thickness
mm
Minimum thickness
mm
Termite resistant
Type of anti-termite protection
Thermal resistivity
yes/no
Yes
K.m/W
Max 6.0
Graphite/or
Type of conductive outer layer
semicon.
polymer
4.12
Nominal overall cable diameter
4.13
Weight of completed cable
mm
Copper
kg/m
Insulation
kg/m
Lead-Alloy
kg/m
Gross Weight
kg/m
Section VI – Requirements
Environmental Guidelines for Contractors
Page 96 of 677
G. 11kV XLPE INSULATED CABLE SYSTEM (with solid
bonding)
UNIT
DATA
Required
5
5.1
Offered
LOSSES
Maximum dielectric loss per metre / phase when operating at
W/m
nominal voltage and frequency and at maximum conductor
temperature
5.2
Maximum sheath loss per metre / phase when operating at
W/m
nominal voltage and frequency and at current rating stipulated
in Item 1.11. with sheath bonded and earthed as recommended
(sectionalizing cross bonding)
5.3
Maximum conductor loss per metre / phase when operating at
W/m
nominal voltage and frequency and at current rating stipulated
in Item 1.11.
5.4
6
Total loss of cable per metre / phase of three phase circuit
W/m
ELECTRICAL VALUES
6.1
Maximum d.c. resistance of conductor at 20oC
6.2
Maximum
a.c.
resistance
of
conductor
/m
at
operating
/m
temperature
6.3
Equivalent reactance of three phase circuit at 50 Hz
/m
6.4
Electrostatic capacitance per conductor of cable at nominal
pF/m
voltage and operating temperature
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
Section VI – Requirements
Environmental Guidelines for Contractors
/m
Page 97 of 677
G. 11kV XLPE INSULATED CABLE SYSTEM (with solid
bonding)
UNIT
DATA
Required
6.9
6.10
7
Zero sequence impedance (as installed conditions)
Resistance
/m
Reactance
/m
Capacitance
pF/m
Surge impedance
Number of connections to earth
7.2
Interconnected sheaths at joint positions
8.1
BONDING & EARTHING
7.1
8
Offered
Yes/no
TESTING
As per IEC
Routine Tests
60502
8.2
As per IEC
Sample Tests
60502
8.3
Type Tests
-
As per IEC
Test Regime
60502
8.4
-
Date of Test
-
Name of independent witness
Commissioning Tests
-
AC voltage withstand test
-
Oversheath DC voltage test
2Uo for 1 hour
kV
10kV max for
15minutes
9
9.1
OTHER INSTALLATION DATA
Minimum cable bending radius when laid:
Section VI – Requirements
Environmental Guidelines for Contractors
Page 98 of 677
G. 11kV XLPE INSULATED CABLE SYSTEM (with solid
bonding)
UNIT
DATA
Required
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
Offered
kN/m
points
9.4
9.5
Delivery length per drum
Normal
m
Maximum
m
Maximal weight of full drum with maximum delivery length of
kg
cable
9.6
Drum dimensions:
Flange diameter
m
Core diameter
m
Width
m
Section VI – Requirements
Environmental Guidelines for Contractors
Page 99 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
Offered
19.
1
2.1
SUBSTATION CONTROL SYSTEM
Yes
Substation Computer
2.1.1
Manufacturer
Yes
2.1.2
Model
Yes
2.1.3
Processor
2.1.4
2.1.5
2.1.6
2.1.7
2.1.8
2.1.9
2.1.10
2.1.11
2.1.12
2.1.13
2.1.14
2.1.15
2.1.16
2.1.17
2.1.18
2.1.19
2.1.20
Type
Word length
Bits
Clock speed (minimum)
MHz
Memory size
Supplied (minimum)
Mb
Supportable/expandable
Gb
Hard disk size
Supplied (minimum)
Gb
Supportable/expandable
Gb
Optical Storage
Yes
Operating system
Software supplied
Operating temperature range
°C
Maximum relative humidity
%
Nominal voltage
V ac
Operating frequency
Hz
Starting current
A
Section VI – Requirements
Environmental Guidelines for Contractors
Page 100 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
2.1.21
2.1.22
2.1.23
2.2
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.2.6
2.2.7
2.2.8
2.2.9
2.2.10
2.2.11
2.2.12
2.2.13
2.2.14
2.2.15
2.2.16
2.2.17
2.2.18
2.2.19
2.2.20
Power requirement
W
Mean time between failure
h
Mean time to repair
h
Offered
Gateway
Manufacturer
Yes
Model
Yes
Processor
Type
Word length
Bits
Clock speed (minimum)
MHz
Memory size
Supplied (minimum)
Mb
Supportable/expandable
Gb
Hard disk size
Supplied (minimum)
Gb
Supportable/expandable
Gb
Communication Protocols To Control Centre(s)
NCC Main IEC 60870-5-101
Yes
NCC Alt IEC 60870-5-101
Yes
NCC TCP/IP Intranet
Yes
RCC Main IEC 60870-5-101
Yes
RCC Alt IEC 60870-5-101
Yes
NCC IEC 60870-5-104
Yes
RCC IEC 60870-5-104
Yes
Section VI – Requirements
Environmental Guidelines for Contractors
Page 101 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
2.2.21
2.2.22
2.2.23
2.2.24
2.2.25
2.2.26
2.2.27
2.2.28
2.2.29
2.2.30
2.2.31
2.2.32
2.2.33
2.2.34
2.2.35
2.3.0
2.3.1
2.3.2
2.3.3
2.3.4
2.3.5
2.3.6
2.3.7
Offered
Communication Protocols in Substation
Yes
IEC 61850
List other operating Protocols
Data Communications Interface
V.35 interface at 64Kb/s
Yes
X.21 / V.11 interface at 64Kb/s
Yes
Operating system
Operating temperature range
°C
Maximum relative humidity
%
Nominal voltage
V dc
Operating frequency
Hz
Starting current
A
Power requirement
W
Mean time between failure
h
Mean time to repair
h
Operator Workstations / HMI
Manufacturer
Yes
Model
Yes
Literature reference for principle of operation
Yes
Processor
Type
Word length
Bits
Clock speed (minimun)
MHz
Section VI – Requirements
Environmental Guidelines for Contractors
Page 102 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
2.3.8
2.3.9
2.3.10
2.3.11
2.3.12
2.3.13
2.3.14
2.3.15
2.3.16
2.3.17
2.3.18
2.3.19
2.3.20
2.3.21
2.3.22
2.3.23
2.3.24
2.3.25
2.3.26
2.3.27
2.3.28
2.3.29
2.3.30
2.3.31
Offered
Memory size
Supplied (minimum)
Mb
Supportable/expandable
Gb
Hard disk size
Supplied (minimum)
Gb
Supportable/expandable
Gb
Yes
Optical Storage
Pointer Device
Operating system
Operator interface screens
Operating temperature range
°C
Maximum relative humidity
%
Nominal voltage
V ac
Operating frequency
Hz
Starting current
A
Power requirement
W
Mean time between failure
h
Mean time to repair
h
Operator Desk
Manufacturer
Yes
Yes
Type of construction
Finish and material of working surfaces
Method of mounting VDUs
Number
Section VI – Requirements
Environmental Guidelines for Contractors
Page 103 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
2.3.32
2.3.33
2.3.34
2.3.35
2.3.36
2.4.
2.4.1
2.4.2
2.4.3
2.4.4
2.4.5
2.4.6
2.4.7
2.4.8
2.4.9
2.4.10
2.4.11
2.4.12
2.4.13
2.4.14
2.4.15
2.4.16
2.5
2.5.1
Offered
Operator Chairs
Manufacturer
Type of construction
Type of upholstery
Number
COLOUR VISUAL DISPLAY UNITS (VDUS)
Manufacturer
Yes
Model
Yes
Literature reference for principle of operation
Yes
Screen size across diagonal
mm
Usable display area
mm
Resolution (minimum)
pixels
Dot pitch
mm
Operating temperature range
°C
Operating relative humidity range
%
Nominal voltage
V ac
Operating frequency
Hz
Starting current
A
Power requirement
W
Approximate lifetime of monitor under continuous use
h
Mean time between failure
h
Mean time to repair
h
Substation Local Area Network (LAN)
Architecture and Technology
Section VI – Requirements
Environmental Guidelines for Contractors
Yes
Page 104 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
2.5.2
Offered
Yes
Literature reference for principle of operation
Transmission medium (e.g. optical fibre) and physical
2.5.3
2.5.4
2.5.5
2.5.6
2.5.7
2.5.8
2.5.9
specification
Protocols
IEC 60870-5-101
IEC 60870-5-104
IEC 61850
List all other protocols
Data transmission rate(s)
Mbps
Physical arrangement - Identify all main elements in the
2.5.10
Yes
supply including hubs, concentrators, bridges, routers,
gateways switches etc. and the number of each
2.5.11
2.5.12
2.5.13
For each element of the LAN indicate the
No and type of ports
% of spare for each type of port
Management software package, functions and facilities, and
2.5.14
2.5.15
2.5.16
2.5.17
2.5.18
2.5.19
2.5.20
2.6
hardware platform
% Loading under various system activity scenarios including
normal loading for performance testing
%
high loading for performance testing
%
system power up
%
main server fail-over and database resynchronisation
Overall availability
%
INDIVIDUAL ELEMENTS
For each element of the LAN equipment provide the following
2.6.1
2.6.2
information
Manufacturer
Section VI – Requirements
Environmental Guidelines for Contractors
Page 105 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
2.6.3
2.6.4
2.6.5
Type
Nominal voltage
Power requirements
Range of ambient temp. and max relative humidity for
2.6.6
2.6.7
2.6.8
2.7
2.7.1
2.7.2
2.7.3
2.7.4
2.7.5
2.7.6
2.7.7
2.7.8
2.7.9
2.7.10
2.7.11
2.7.12
2.7.13
2.7.14
2.7.15
2.7.16
Offered
continuous reliable operation
Mean time between failures
Mean time to repair
V ac
W
oC
%RH
PRINTERS
Yes
Logging Printer
Manufacturer
Model
Literature reference for principle of operation
Number
Mounting arrangement
Method of printing (e.g. ink jet)
Print speed
ppm
Paper feed mechanism
Number of columns (minimum)
Operating temperature range
°C
Maximum relative humidity
%
Nominal voltage
V ac
Operating frequency
Hz
Power requirement
W
Max noise level at 1 m
Section VI – Requirements
Environmental Guidelines for Contractors
dB(A)
Page 106 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
2.7.17
2.7.18
2.7.19
2.7.20
2.7.21
2.7.22
2.7.23
2.7.24
2.7.25
2.7.26
2.7.27
2.7.28
2.7.29
2.7.30
2.7.31
2.7.32
2.7.33
2.7.34
2.7.35
2.7.36
2.7.37
2.7.38
3.0
3.1.0
Mean time between failure
h
Mean time to repair
h
Offered
COLOUR PRINTERS
Manufacturer
Yes
Model
Yes
Literature reference for principle of operation
Yes
Number
Mounting arrangement
Print speed (minimum)
ppm
Technology
Resolution
dpi
Paper size
Sheet feed paper tray capacity
Sheets
Internal memory (minimum)
Mb
Operating temperature range
°C
Maximum relative humidity
%
Nominal voltage
V ac
Operating frequency
Hz
Power requirement
W
Max noise level at 1 m
dB(A)
Mean time between failure
h
Mean time to repair
h
BAY CONTROL UNIT HARDWARE
19.1
General
Section VI – Requirements
Environmental Guidelines for Contractors
Yes
Page 107 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
3.1.1
3.1.2
3.1.3
3.1.4
Manufacturer
Yes
Module designation
Yes
Literature reference for principle of operation
Yes
Power supply
Power requirements
3.1.5
3.1.6
3.1.7
3.1.8
3.1.9
3.1.10
3.1.11
3.2
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6.0
3.2.6.1
3.2.6.2
3.3
3.3.1
3.3.2
3.3.3
V dc
Offered
110
W
Maximum Number of expansion modules
Mean-time to repair for each type of RTU
H
Mean-time between failure for each type of RTU
H
Local LCD Display
Operating temperature range
°C
0 – 50
Operating relative humidity range
%
100
BCU ENCLOSURE
Manufacturer
Module designation
Literature reference for enclosure
Weight
Dimensions
Degree of protection
Flush Mounted housing
Surface mounted housing
IEC STANDARDS ( OR EQUIVALENT )
EMC Type tests (Provide Class/Level or Severity rating)
EMC Compliance IEC 60255-22-3
Dielectric withstand test IEC 60255-4/-5
Section VI – Requirements
Environmental Guidelines for Contractors
Page 108 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
3.3.4
3.3.5
3.3.6
3.3.7
3.3.8
3.3.9
3.3.10
3.3.11
3.3.12
3.3.13
3.3.14
3.4
3.4.1
3.4.2
3.4.3
3.4.4
3.4.5
3.4.6.0
3.4.6.1
3.4.6.2
3.4.6.3
3.4.6.4
3.4.6.5
3.4.7.0
Offered
High Voltage impulse test IEC 60255-4/-5
Fast transient disturbance test IEC 61000-4-4
Oscillatory transient IEC 61000-4-12
Radiated immunity test IEC 61000-4-6
Electrostatic discharge test IEC 61000-4-2
Emitted interference test IEC 61000-4-3
Mechanical test Compliance
Vibration test IEC 60255-21-1
Shock test IEC 60255-21-2
Seismic test IEC 60255-21-3
Temperature rise test IEC 60068-2-2
BCU FUNCTIONS
The monitoring functions include:
Switching status monitoring (breakers)
Indication & alarm status monitoring
Analogue measurements (currents, voltages, etc.)
Resolution of time tagging
ms
1
The control functions include:
Close / open of circuit breakers
Close / Open of isolators / disconnectors
Transformer Automatic tap change control
Breaker Voltage Synchronisation Check Control
Bay interlocking facilities
The reporting functions include:
Section VI – Requirements
Environmental Guidelines for Contractors
Page 109 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
3.4.7.1
3.4.7.2
Offered
Sequence of Events recording
Post – Mortem Review / Fault waveform capture
Tenderers to state memory capacity and
functionality of Sequence of events and fault
3.4.7.3
waveform capture
3.5
3.5.1
3.5.2
3.5.3
3.5.4
3.5.5
3.5.6.0
3.5.6.1
3.5.6.2
3.5.6.3
3.5.6.4
3.5.6.5
3.5.6.6
3.6
3.6.1
3.6.2
3.6.3
3.6.4
3.6.5
3.6.6
19.2
BCU Configuration
Number of processors
Main processor
Secondary processors
Communication processor (module)
Type of communication between processors
Yes
LCD Display and selector Buttons on front of BCU
Functionality to include
Full control of circuit bay
Status of bay plant
Circuit active line diagram
Power system Measurements
Display alarms and events
PROCESSING UNITS
Main CPU
Manufacturer
Module designation
Literature reference for principle of operation
Mean - time between failure
h
Power requirements
W
Section VI – Requirements
Environmental Guidelines for Contractors
Page 110 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
3.6.7
3.6.8
3.6.9
3.6.10.0
3.6.10.1
3.6.10.2
3.6.10.3
3.7.0
3.7.1
3.7.2
3.7.3
3.7.4
3.7.5
3.7.6
3.7.7
3.7.8
3.7.9.0
3.7.9.1
3.7.9.2
3.7.9.3
3.8
3.8.1
3.8.2
3.8.3
Offered
Type of processor
Word length
bit
Clock speed
MHz
Kinds of memory used:
Type, size and extension capabilities
KByte
Type, size and extension capabilities
Kbytes
Type, size and extension capabilities
Kbytes
SECONDARY CPU
Manufacturer
Module designation
Literature reference for principle of operation
Mean - time between failure
h
Power requirements
W
Type of processor
Word length
bit
Clock speed
MHz
Kinds of memory used:
Type, size and extension capabilities
Kbytes
Type, size and extension capabilities
Kbytes
Type, size and extension capabilities
Kbytes
COMMUNICATIONS
Manufacturer
Yes
Module designation
Literature reference for principle of operation
Section VI – Requirements
Environmental Guidelines for Contractors
Page 111 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
3.8.4
3.8.5
3.8.6
3.8.7
3.8.8
3.8.9
3.8.10
3.8.11
3.8.12
3.8.13
3.8.14.0
3.8.14.1
3.8.14.2
3.8.14.3
Offered
Number of communications channels
Type of processor
Word length
Clock speed
Type and size of memory
bit
MHz
Line interface to communication channel
Speed of transmission
B/s
Number and type of communication ports
Meantime between failure
h
Power requirement
W
Communication Interfaces
IEC60870-5-101 direct to Control Centre(s)
IEC60870-5-103 interface to protection IED
IEC61850 interface to substation LAN
IEC60870-5-101 for remote downloading of BCU
3.8.14.4
3.8.14.5
3.8.15
3.8.16.0
3.8.16.1
3.8.16.2
3.8.16.3
3.9
3.9.1
data
List all Protocols available at BCU
Local interface for Laptop Computer
IED Interface
List of manufactures the BCU has interfaced
Yes
Standard communication protocols available
Yes
Optional communication protocols available
Yes
POWER SUPPLY MODULE
Module designation
Section VI – Requirements
Environmental Guidelines for Contractors
Page 112 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
3.9.2
3.9.3
3.9.4
3.9.5
3.9.6
3.9.7
3.9.8
3.9.9
3.10
3.10.1
3.10.2
3.10.3
3.10.4
3.10.5.0
3.10.5.1
3.10.5.2
3.10.5.3
3.10.5.4
3.10.5.5
3.10.6.0
3.10.6.1
3.10.6.2
3.10.7
3.10.8
Offered
Literature reference for principle of operation
Maximum number of modules per processor
Nominal Input voltage
VDC
Operating voltage range
Power requirement
W
Isolation
Meantime between failure
h
Power requirement
W
DIGITAL INPUT MODULE
Module designation
Literature reference for principle of operation
Maximum number of modules per processor
Input voltage
V dc
Is contact input type configurable as
Status and alarms
Sequence of events
BCD or parallel inputs
Pulse accumulator
Or any combination of these
Standard number of inputs per module:
double position
single position
Type of input circuit isolation
Input galvanic separation
Section VI – Requirements
Environmental Guidelines for Contractors
Page 113 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
3.10.9
3.10.10
3.10.11
3.10.12
3.10.13
3.10.14
3.10.15
3.11
3.11.1
3.11.2
3.11.3
3.11.4
3.11.5
3.11.6
3.11.7
3.11.8
3.11.9
3.11.10
3.11.11
3.11.12
3.11.13
3.12
3.12.1
3.12.2
Impulse voltage withstand
kV
Scan time
ms
Minimal pulse duration
ms
Input impedance
Filter time constant
Offered
ohm
ms
Meantime between failure
h
Power requirement
W
PULSE COUNTING MODULE
Is this facility incorporated into the digital input module?
Module designation
Literature reference for principle of operation
Maximum number of modules per processor
Type of counter
Maximum count
Storage and resetting under control of external clock?
Number of inputs per module
Input current
mA
Impulse voltage withstand
kV
Signal range : pulse widths
ms
Meantime between failure
h
Power requirement
W
COMMAND OUTPUT MODULE
Module designation
Literature reference for principle of operation
Section VI – Requirements
Environmental Guidelines for Contractors
Page 114 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
3.12.3
3.12.4.0
3.12.4.1
3.12.4.2
3.12.4.3
3.12.4.4
3.12.5
3.12.6
3.12.7
3.12.8
3.12.9
3.12.10
3.12.11
3.13
3.13.1
3.13.2
3.13.3
3.13.4
3.13.5
3.13.6
3.13.7
3.13.8
3.13.9
3.13.10
Offered
Maximum number of modules per processor
Contact ratings
Switched voltage
V
Switched power
VA max
Switched current
A
Range of duration of command output
S
Number of two position output channels per module
Are outputs activated by select-check-actuate procedure?
Are welded contacts checked prior to command output?
Are the outputs fused and fuse status monitored?
Impulse voltage withstand
kV
Meantime between failure
h
Power requirement
W
DIGITAL OUTPUT MODULE
Module designation
Literature reference for principle of operation
Number of outputs per module
Maximum number of modules per processor
Maximum output current
mA
Maximum switched output voltage
V
Impulse voltage withstand
kV
Type of protection against back EMF
kV
Command duration adjustable in the range
s
Meantime between failure
h
Section VI – Requirements
Environmental Guidelines for Contractors
Page 115 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
3.13.11
3.14
3.14.1
3.14.2
3.14.3
3.14.4
3.14.5
3.14.6
3.14.7
3.14.8
3.14.9
3.14.10
3.14.11
3.14.12
3.15
3.15.1
3.15.2
3.15.3
3.15.4
3.15.5
3.15.6
3.15.7
3.15.8
3.15.9
Power requirement
Offered
W
ANALOGUE TO DIGITAL CONVERSION MODULE
Module designation
Literature reference for principle of operation
Number of inputs per module
Maximum number of modules per processor
Resolution
bits
Accuracy
%
Common mode noise rejection
dB
Normal mode noise rejection
dB
Conversion time
ms
Scanning time (per channel)
ms
Meantime between failures
h
Power requirement
W
ANALOGUE INPUT MODULE
Module designation
Literature reference for principle of operation
Maximum number of modules per processor
Scanning resolution
Accuracy
bits
%
How are overflow and conversion failures dealt with?
Conversion time
Input filter attenuation at 50 Hz
dB
Input signal types (e.g. 4-20 mA)
Section VI – Requirements
Environmental Guidelines for Contractors
Page 116 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
3.15.10
3.15.11
3.15.12
3.15.13
3.15.14
3.15.15
3.15.16
3.16
3.16.1
3.16.2
3.16.3
3.16.4
3.16.5
3.16.6
3.16.7
3.16.8
3.16.9
3.16.10
3.17.0
3.17.1
3.17.2
3.17.3
3.17.4
3.17.5
Offered
Method of isolation
Impulse voltage withstand
Input impedance
kV
ohm
Type of ADC switching
Standard number of inputs per module
Mean time between failure
h
Power requirement
W
ANALOGUE OUTPUT MODULE
Module designation
Literature reference for principle of operation
Number of outputs per module
Maximum number of modules per processor
Output voltage range
V
Output current range
mA
Type of isolation
Load resistance range
ohms
Maximum error over-current ranges
%
Impulse voltage withstand
kV
DIRECT AC CONNECTION VOLTAGE
Module designation
Literature reference for principle of operation
Maximum number of modules processor
Number of inputs per module
Input voltage ranges
Section VI – Requirements
Environmental Guidelines for Contractors
V ac
Page 117 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
3.17.6
3.17.7
3.17.8
3.17.9
3.17.10
3.17.11
3.17.12
3.17.13
3.17.14
3.18.0
3.18.1
3.18.2
3.18.3
3.18.4
3.18.5
3.18.6
3.18.7
3.18.8
3.18.9
3.18.10
3.18.11
3.18.12
3.18.13
3.18.14
Input filter attenuation at 50 Hz
dB
Burden on instrument transformer circuit
VA
Conversion time
ms
Scanning resolution
bits
Accuracy
Offered
%
What calculations are supported
How are overflow and conversion failures dealt with?
Method of isolation
Impulse voltage withstand kV
kV
DIRECT AC CONNECTION CURRENT
Module designation
Literature reference for principle of operation
Maximum number of modules processor
Number of inputs per module
Input current ranges
A
Input filter attenuation at 50 Hz
dB
Burden on instrument transformer circuit
VA
Conversion time
ms
Scanning resolution
bits
Accuracy
%
What calculations are supported
How are overflow and conversion failures dealt with?
Method of isolation
Impulse voltage withstand kV
Section VI – Requirements
Environmental Guidelines for Contractors
kV
Page 118 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
4.0
19.34.1.0
4.1.1
4.1.2
4.1.3
4.1.4
4.2
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
BCU SOFTWARE
GENERAL REQUIREMENTS
Program structure
System software
Standard functions programs
User functions programs
CAPABILITY OF:
BCU program downloading from Control Centre
Application configuration from Control Centre
Remote selection of processing parameters
Selection of communication protocols
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
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.4.0
4.4.1
4.4.2
Offered
SYSTEM SOFTWARE
Operating System (Monitor) Functions and capabilities
Calendar program Type, functions and capabilities
Time Synchronization Program Functions and capabilities
Data Base Updating program Functions and capabilities
Testing and Diagnostics Programs Functions and capabilities
Yes
STANDARD FUNCTIONS PROGRAMS
Data Communication Programs: Functions and capabilities
Capability of communication protocol selection
Section VI – Requirements
Environmental Guidelines for Contractors
Page 119 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
4.4.3
4.5.0
4.5.1
4.5.2
4.5.3
4.5.4
4.5.5
4.5.6
4.5.7
4.5.8
4.5.9
4.5.10
4.5.11
4.6.0
4.6.1
4.6.2
4.6.3
4.6.4
4.6.5
4.6.6
4.6.7
4.6.8
4.6.9
4.7
Offered
Capability of operating modes selection
ANALOGUE MEASUREMENTS, SCANNING AND
TRANSMISSION PROGRAMS
Capabilities of adjustments
Transducers constants
Periodic transmission/transmission by exception
Automatic checking of A/D-conversion accuracy
Smoothing
Threshold values
Limits
Scan duration (range)
Cycle duration (range)
s
Priority of transmission
s
Digital Input Data Scanning and transmission Program
FUNCTIONS AND CAPABILITIES
Capability of adjustments;
Scan duration (range)
ms
Transient time of status information (range)
Cycle duration (range)
Debouncing filter
ms
s
Suppression of intermediate status information
Time tagging
Transmission mode
Priority of transmission
ALARM AND EVENT HANDLING
Section VI – Requirements
Environmental Guidelines for Contractors
Page 120 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
4.7.1
4.7.2
4.8
4.8.1
4.8.2
4.8.3
4.8.4
4.8.5
4.8.6
4.8.7
4.8.8
4.8.9
4.8.10
4.8.11
4.8.12
4.8.13
4.8.14
4.8.15
4.9
4.9.1
4.9.2
4.9.3
4.9.4
4.9.5
Offered
Grouping of alarms and events
Maximum number of groups
SUPERVISORY CONTROL PROGRAMS: FUNCTIONS
AND CAPABILITIES
Select before execute
Target check
Cancelling control after adjustable time delay
Capability of adjustments:
Duration of output (range)
s
Allowed duration of execution (range)
s
Sequence of Events programs
Minimal sequence of events time resolution
ms
Sequence of events memory capacity
Events time resolution (adjustable range)
Priority of transmission
Post - Mortem Review / Program
Selection of analogues for post-mortem review
Short interval time resolution (adjustable range)
s
Long interval time resolution (adjustable range)
s
DATA PROCESSING PROGRAMS: FUNCTIONS AND
CAPABILITIES
Required minimum data processing:
Logic functions
Arithmetical functions (MW , Mvar etc )
Limiting functions
s
Comparative functions
Section VI – Requirements
Environmental Guidelines for Contractors
Page 121 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
4.9.6
5.0
5.1.0
5.1.1
5.1.2
5.1.3
5.1.4
5.2.0
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.2.7
5.0
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
6.0
19.46.1.0
Offered
Time functions
GATEWAY SOFTWARE
GENERAL REQUIREMENTS
DATABASE MANAGEMENT APPLICATION
ALARM AND EVENT GROUPING
Alarm and Event Separation for NCC and DCC
Alarm and Event storage and remote / local
access
CAPABILITY OF:
Gateway program downloading from Control Centre
Application configuration from Control Centre
Remote selection of processing parameters
Selection of communication protocols
Selection of operation modes (cyclic, polled, etc.)
Appropriate protection of software against power failure
Automatic re-start without software down-loading
SYSTEM SOFTWARE
Operating System (Monitor) Functions and capabilities
Calendar program Type, functions and capabilities
Time Synchronization Program Functions and capabilities
Data Base Updating program Functions and capabilities
Testing and Diagnostics Programs Functions and capabilities
TRANSDUCERS
Current transducer.
Section VI – Requirements
Environmental Guidelines for Contractors
Page 122 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
6.1.1
6.1.2
6.1.3
6.1.4
6.1.5
6.1.6
6.1.7
6.1.8
6.1.9
6.1.10
6.1.11
6.1.12
6.1.13
6.1.14
6.1.15
6.1.16
6.1.17
6.1.18
6.1.19
6.1.20
6.2.0
6.2.1
6.2.2
6.2.3
Offered
Manufacturer
Type reference
Number
Principle (e.g. 3 phase, 3 wire, unbalanced)
Output range
Input ranges available
mA
A
Burden on instrument transformer circuit
VA
Insulation level
kV
Impulse withstand level
kV peak
Minimum accuracy over working range
%
Response time (0 to 90%)
ms
Mounting details
Operating temperature range
°C
Operating humidity range
%
Auxiliary supply if required
Voltage range
V
Power requirements
VA
Frequency
Hz
Type of overload protection
Permissible continuous input overload
%A
VOLTAGE TRANSDUCER
Manufacturer
Type
Number
Section VI – Requirements
Environmental Guidelines for Contractors
Page 123 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
6.2.4
6.2.5
6.2.6
6.2.7
6.2.8
6.2.9
6.2.10
6.2.11
6.2.12
6.2.13
6.2.14
6.2.15
6.2.16
6.2.17
6.2.18
6.2.19
6.3.0
6.3.1
6.3.2
6.3.3
6.3.4
6.3.5
6.3.6
6.3.7
Output range
Input ranges available
mA
V
Burden on instrument transformer circuit
VA
Insulation level
kV
Impulse withstand level
Offered
kV peak
Minimum accuracy over working range
%
Response time (0 to 90%)
ms
Mounting details
Operating temperature range
°C
Operating humidity range
%
Auxiliary supply
V range
V
Power requirements
VA
Frequency
Hz
Type of overload protection
Permissible continuous input overload
%A
ACTIVE POWER MW
Manufacturer
Type reference
Number
Principle (e.g. 3 phase, 3 wire, unbalanced)
Output range
mA
Input ranges available
Voltage
Section VI – Requirements
Environmental Guidelines for Contractors
V
Page 124 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
6.3.8
6.3.9
6.3.10
6.3.11
6.3.12
6.3.13
6.3.14
6.3.15
6.3.16
6.3.17
6.3.18
6.3.19
6.3.20
6.3.21
6.3.22
6.3.23
6.3.24
6.3.25
6.3.26
6.4
6.4.1
6.4.2
6.4.3
6.4.4
Current
Offered
A
Burden on instrument transformer circuit
Current Transformer (CT)
VA
Voltage Transformer (VT)
VA
Insulation level
kV
Impulse withstand level
kV peak
Minimum accuracy over working range
%
Response time (0 to 90%)
ms
Mounting details
Operating temperature range
°C
Operating humidity range
%
Auxiliary supply if required
Voltage range
V
Power requirements
VA
Frequency
Hz
Type of overload protection
Permissible continuous input overload
Voltage
%V
Current
%A
REACTIVE POWER MVARS
Manufacturer
Type reference
Number
Principle (e.g. 3 phase, 3 wire, unbalanced)
Section VI – Requirements
Environmental Guidelines for Contractors
Page 125 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
6.4.5
6.4.6
6.4.7
6.4.8
6.4.9
6.4.10
6.4.11
6.4.12
6.4.13
6.4.14
6.4.15
6.4.16
6.4.17
6.4.18
6.4.19
6.4.20
6.4.21
6.4.22
6.4.23
6.4.24
6.4.25
6.4.26
6.5
6.5.1
Output range
Offered
mA
Input ranges available
Voltage
V
Current
A
Burden on instrument transformer circuit
Current Transformer (CT)
VA
Voltage Transformer (VT)
VA
Insulation level
kV
Impulse withstand level
kV peak
Minimum accuracy over working range
%
Response time (0 to 90%)
ms
Mounting details
Operating temperature range
°C
Operating humidity range
%
Auxiliary supply
Voltage range
V
Power requirements
VA
Frequency
Hz
Type of overload protection
Permissible continuous input overload
Voltage
%V
Current
%A
FREQUENCY
Manufacturer
Section VI – Requirements
Environmental Guidelines for Contractors
Page 126 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
6.5.2
6.5.3
6.5.4
6.5.5
6.5.6
6.5.7
6.5.8
6.5.9
6.5.10
6.5.11
6.5.12
6.5.13
6.5.14
6.5.15
6.5.16
6.5.17
6.5.18
6.5.19
6.6
6.6.1
6.6.2
6.6.3
6.6.4
6.6.5
Offered
Type
Number
Measurement range
Hz
Output range
mA
Input ranges available
V ac
Burden on instrument VT circuit
VA
Insulation level
kV
Impulse withstand level
kV peak
Minimum accuracy over working range
%
Response time (0 to 90%)
ms
Mounting details
Operating temperature range
°C
Auxiliary supply
Voltage range
V
Power requirements
VA
Frequency
Hz
Type of overload protection
Permissible continuous input overload %V
%
POWER FACTOR
Manufacturer
Type
Number
Measurement range
Output range
Section VI – Requirements
Environmental Guidelines for Contractors
mA
Page 127 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
6.6.6
6.6.7
6.6.8
6.6.9
6.6.10
6.6.11
6.6.12
6.6.13
6.6.14
6.6.15
6.6.16
6.6.17
6.6.18
6.6.19
6.7
6.7.1
6.7.2
6.7.3
6.7.4
6.7.5
6.7.6
6.7.7
6.7.8
6.7.9
Input ranges available
V ac
Burden on instrument VT circuit
VA
Insulation level
kV
Impulse withstand level
Offered
kV peak
Minimum accuracy over working range
%
Response time (0 to 90%)
ms
Mounting details
Operating temperature range
°C
Auxiliary supply
Voltage range
V
Power requirements
VA
Frequency
Hz
Type of overload protection
Permissible continuous input overload
%
COMBINED ACTIVE AND REACTIVE POWER
Manufacturer
Type
Number
Measurement range
Input ranges available
Voltage
V ac
Current
A
Burden on instrument transformer circuit
Current Transformer (CT)
Section VI – Requirements
Environmental Guidelines for Contractors
VA
Page 128 of 677
H.
SUBSTATION CONTROL SYSTEM
UNIT
DATA
Required
6.7.10
6.7.11
6.7.12
6.7.13
6.7.14
6.7.15
6.7.16
6.7.17
6.7.18
6.7.19
6.7.20
6.7.21
6.7.22
6.7.23
6.7.24
6.7.25
6.7.26
6.7.27
6.7.28
Voltage Transformer (VT)
VA
Insulation level
kV
Impulse withstand level
Offered
kV peak
Minimum accuracy over working range
%
Response time (0 to 90%)
ms
Number of analogue outputs
Analogue output range
mA
Calculations available
Serial output protocol
Mounting details
Operating temperature range
°C
Auxiliary supply
Voltage range
V
Power requirements
VA
Frequency
Hz
Type of overload protection
Permissible continuous input overload
Voltage
%V
Current
%A
Section VI – Requirements
Environmental Guidelines for Contractors
Page 129 of 677
I.
DIESEL GENERATOR
UNIT
DATA
Required
1.
1.
GENERATOR
Details of automatic voltage regulating equipment
1.1
Manufacturer
1.2
Rated power
1.3
Output voltage
1.4
Rated power factor
1.5
Frequency
1.6
Dimensions
kVA
500
V
400
Cos Φ
0.8
Hz
50
Diesel Generator
mxmxm
1.7
Limits of voltage regulation
%
1.8
Manufacturer system in accordance with ISO
9000, 9001, 9002, 9003 and 9004
2
Offered
yes
ENGINE
2.1
Rating for site conditions
2.2
No and arrangement of cylinders
2.3
Any limitation in part load performance
2.4
Fuel consumption: At rated output
At ¾ rated output
At ½ rated output
l/h
2.5
Lubricating oil consumption at rated output
l/h
Section VI – Requirements
Environmental Guidelines for Contractors
kW
Page 130 of 677
I.
DIESEL GENERATOR
UNIT
DATA
Required
2.6
2.7
2.8
2.9
2.10
2.11
3
Time taken for engine to run up to speed and be
ready to receive load
Maximum load increment which may be applied
with the voltage and frequency maintained within
the limits specified
Offered
sec
kVA
Estimated running hours between overhauls
Top Overhaul
Hr
Major Overhaul
Hr
Bulk fuel tank
Capacity
Dimension
l
m
Daily service fuel tank
Capacity
Dimension
l
m
Radiator
Air flow from radiator
Temperature rise of discharge air
C
Dimension of radiator
m
m3/s
ELECTRICAL EQUIPMENT
3.1
Number of batteries for generating set and type
3.2
Voltage of each battery
3.3
Battery capacity for generating set
Section VI – Requirements
Environmental Guidelines for Contractors
Electrical Starter
V
A-h
Page 131 of 677
I.
DIESEL GENERATOR
UNIT
DATA
Required
3.4
Voltage of engine starting system
Section VI – Requirements
Environmental Guidelines for Contractors
Offered
V
Page 132 of 677
Section VI – Requirements
Environmental Guidelines for Contractors
Page 133 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
A.
LVAC SWITCHGEAR (415/240 V, 50 Hz)
1.
GENERAL
1.1.
Rated voltage
V
415
1.2.
Rated frequency
Hz
50
2.
Offered
LVAC SWITCHBOARD
2.1.
Manufacturer
2.2.
Type designation
2.3.
Type of switchboard
Metal-clad
withdrawable type,
multi-tier
2.4.
Standards
2.5.
Number of years equipment of identical design has
been in service
2.6.
Rated current of busbars at 50C ambient
temperature
2.7.
Busbar cross section
Section VI – Requirements
Environmental Guidelines for Contractors
IEC 60439
A
mm2
Page 134 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
2.8.
Busbar insulation material
2.9.
Busbar insulation maximum working temperature
210.
Temperature rise on continuous operation at rated
current
Offered
C
at 50C
2.11
Rated short-time withstand current (1 s)
kA
50
2.12
Rated peak withstand current
kA
125
2.13
Test voltage (1 min)
V
2500
2.14.
Impulse Withstand Voltage
2.15.
Type of internal barriers, shutters, etc.
2.16.
Degree of protection
2.17.
Overall dimensions per cubicle
kVp
Metallic
IP51
Width
mm
Depth
mm
Height
mm
Weight
kg
Section VI – Requirements
Environmental Guidelines for Contractors
max 2250
Page 135 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
2.18.
3.
Method of circuit breaker withdrawal
Offered
manual
CIRCUIT BREAKER
3.1.
Manufacturer
3.2.
Type designation
3.3.
Type
3.4.
Number of poles
3.5.
Standard
3.6.
Rated current at 50C
A
3.7.
Rated short-time withstand current (1 s)
kA
3.8.
Rated peak withstand current
kA
3.9.
Rated symmetrical breaking current
kA
3.10.
Rated making current
kA
Section VI – Requirements
Environmental Guidelines for Contractors
Air, withdrawable
3
IEC 60947-2
50
Page 136 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
3.11.
Breaking time
3.12.
Material of:
3.13.
3.14.
moving contacts
fixed contacts
moving contacts
fixed contacts
Operating mechanism
Motor rated power
W
Motor operating voltage
V
Weight of draw-out unit
3.16
Protection Module
3.17.1.
s
Design of:
3.15.
3.17.
Offered
Type
Phase protection functions
Neutral protection functions
Ground/Earth protection functions
kg
L,S,I
G
Type tests
Temperature Rise Test
Section VI – Requirements
Environmental Guidelines for Contractors
Page 137 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
Offered
Have heating tests at continuous rated normal
current been carried out ?
3.17.2.
report number
date
Basic Impulse Voltage Type Test:
Has B.I.V test been completed?
3.17.3
circuit breaker
report number
date
Life Test:
Has 2000 operating life test at no load (deenergised) been carried out?
4.
report number
date
MOULDED CASE CIRCUIT BREAKERS (MCCBs)
4.1.
Manufacturer
4.2.
Type designation
4.3.
Withdrawable MCCBs type
Section VI – Requirements
Environmental Guidelines for Contractors
yes
Page 138 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
4.4.
Number of poles
4.5.
Standards
4.6.
Rated current at 50C
A
4.7.
Rated short-time withstand current (1 s)
kA
4.8.
Rated peak withstand current
kA
4.9.
Rated breaking current
kA
4.10.
Remote signaling
4.11.
Operating mechanism
4.12.
Mass
4.13
Protection Module
5.
5.1.
Type
Phase protection functions
Ground (Earth) protection function
Offered
3
IEC 60947-2
yes
L, I
CURRENT TRANSFORMERS
Manufacturer
Section VI – Requirements
Environmental Guidelines for Contractors
Page 139 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
5.2.
Type
5.3.
Type of primary winding (e.g. bar, wound, etc.)
5.4.
Standards
5.5.
Rated voltage
kV
5.6.
Rated lightning impulse withstand voltage phase to
earth
kV
5.7.
Rated power frequency withstand voltage phase to
earth
kV
5.8.
Partial discharge test voltage
kV
5.9.
Rated frequency
Hz
5.10.
Rated continuous thermal current at 50 oC
5.11.
Rated short-time withstand current (1 s)
kA
5.12.
Rated dynamic current
kA
5.13.
Line current transformer
5.13.1.
Offered
IEC 60044-1
50
Type designation
Section VI – Requirements
Environmental Guidelines for Contractors
Page 140 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
5.13.2.
Number of cores
5.13.3.
Rated extended primary current
5.13.4.
Ratio (TR = turns ratio)
5.13.5.
I core
II core
Offered
2
%
120
A
1/750 (TR)
A
750/1
Class
PX
I core
II core
1.0 / FS:5
5.13.6.
Knee point voltage (EK)
I core
II core
V
V
5.13.7.
Exciting current (IE) at EK
5.13.8.
N/A
I core
II core
A
A
N/A
VA
N/A
Rated output (burden to be 25-100% rated
burden)
I core
II core
VA
5.14.
Neutral current transformer
5.14.1.
Type designation
5.14.2.
Number of cores
Section VI – Requirements
Environmental Guidelines for Contractors
1
Page 141 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
5.14.3.
Rated extended primary current
5.14.4.
Ratio (TR = turns ratio)
5.14.5.
PX
I core
I core
V
I core
A
Rated output (burden to be 25-100% rated
burden)
5.14.9.
1/750 (TR)
Exciting current (IE) at EK
5.14.8.
A
Knee point voltage (EK)
5.14.7.
120
Class
5.14.6.
I core
%
Offered
I core
Total mass of one current transformer complete
VA
N/A
kg
All Class PX CTs shall have a rated secondary
current, ISN
6.
INSTRUMENTS
6.1.
Manufacturer
6.2.
Standards
6.3.
Type designation
6.4.
IEC 60051
Ammeter
Voltmeter
Total scale range
Section VI – Requirements
Environmental Guidelines for Contractors
Page 142 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
Ammeter
Voltmeter
6.5.
Dimensions
6.6.
Accuracy
6.7.
Selector Switches
7.1.
Offered
mm
96 x 96
1.5
Ammeter
Voltmeter
Restricted Earth Fault Protection
7.1.1.
Manufacturer
7.1.2.
Type reference
7.1.3.
Relay design (electromechanical, numerical)
7.1.4.
Minimum fault setting (% of CT rating)
%
7.1.5.
Operating time at 5 x setting
ms
7.1.7.
State principle of operation, i.e.
H - high impedance
Numerical
H
L - low impedance
7.1.8.
Current transformer requirements:
Required knee point voltage, Vk
Section VI – Requirements
Environmental Guidelines for Contractors
Page 143 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
CT maximum winding resistance
Magnetising current at Vk
Offered
V
A
7.1.11.
7.2.
Tripping contacts rating
Undervoltage / Overvoltage Relay
7.2.1.
Manufacturer
7.2.2.
Type reference
7.2.3.
Relay design (electromechanical, static)
7.2.4.
Total scale range
7.2.5.
Operate time at instantaneous voltage change for
undervoltage / overvoltage relay
V
ms
7.2.6.
Reset ratio overvoltage / undervoltage
%
8.
Manufacturer quality system in accordance with
ISO 9000, 9001, 9002, 9003 and 9004
yes
9.
Type test certificate to be issued by independent
laboratory or independently witnessed type test
certificate available
yes
Section VI – Requirements
Environmental Guidelines for Contractors
Page 144 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
Section VI – Requirements
Environmental Guidelines for Contractors
Offered
Page 145 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
B
D.C. SYSTEMS
1.
110 V D.C SYSTEM - SUBSTATION
Offered
SERVICES SUPPLY
1.1.
110 V Battery Units
1.1.1
Manufacturer
1.1.2
Type designation
1.1.3
Number of battery units
1.1.4
Type of cell
1.1.5
Operating voltage per cell
1.1.6
Number of cells
Section VI – Requirements
Environmental Guidelines for Contractors
2 x 50%
Nickel-Cadmium
V
Page 146 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
1.1.7
Standard
Offered
* 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)
1.1.9
1.1.10
1.1.11
1.1.12
5 hour rate
Ah
3 hour rate
Ah
1 hour rate
Ah
30 minute rate
Ah
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
1.14
Ampere hour efficiency:
10 hour rate
%
5 hour rate
%
3 hour rate
%
1 hour rate
%
Watt hour efficiency:
10 hour rate
%
5 hour rate
%
3 hour rate
%
1 hour rate
%
30 minute rate
%
Maximum charging voltage per cell
V
.
Section VI – Requirements
Environmental Guidelines for Contractors
Page 147 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
1.1.13
Normal charging rate range
Offered
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
1.1.24.
1
Number
of stands
1.1.25.
1
Number
of tiers
1.1.26.
1
Material
and cross section of connections:
between cells
between tiers
between stands
to battery fuse box
mm
mm2
mm2
mm2
mm2
1.1.27.
1
Method
of treating copper connection against
corrosion
1.1.28.
Method of protecting copper connections against
accidental short circuiting
1.1.29.
Estimated short circuit current from fully charged
A
battery
Section VI – Requirements
Environmental Guidelines for Contractors
Page 148 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
1.1.30.
Anticipated life of electrolyte under actual
operating conditions
1.1.31.
Years
Anticipated life of electrolyte under actual
operating conditions
1.1.32.
Offered
Years
1
Operating
temperatures:
Normal operation
maximum
C
minimum
C
Emergency discharge
maximum
C
minimum
C
1.2
110 V D.C Battery Chargers
1.2.1.
Manufacturer
1.2.2.
Type designation
1.2.3.
Degree of protection
IP 51
1.2.4.
Number of chargers
2 x 100%
1.2.5.
Type
1.2.6.
Charging characteristic
1.2.7.
Input voltage
V
3 Phase, 415
1.2.8.
Input frequency and range
Hz
50
1.2.9.
Input power
1.2.10.
Minimum working power factor
1.2.11.
Rated output power
1.2.12.
Output voltage range:
Section VI – Requirements
Environmental Guidelines for Contractors
Thyristor Controlled
kVA
kW
Page 149 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
1.2.13.
float charge
V
boost charge
V
Offered
Continuous output current range:
float charge
A
boost charge
A
1.2.14.
Accuracy of output voltage
%
1.2.15.
Overload range
%
1.2.16.
Voltage ripple
%
1.2.17.
Ripple frequency
Hz
1.2.18.
Means of adjusting output
1.2.19.
Details of any forced cooling equipment for
chargers
1.2.20.
Ambient temperature range
C
1.2.21.
Ambient relative humidity range
%
1.2.22.
Mean time between failure (MTBF)
1.2.23.
Overall dimensions (shall be a separate free-
Years
mm
standing panel/cubicle)
1.2.24.
Weight
1.2.25.
Boost charge maximum permitted constant
potential per cell
1.2.26.
%
Time to be re-charge to 90% capacity at
maximum permitted voltage and current
1.3.
V
Boost charge maximum permitted current as
percentage of 5 hour capacity
1.2.27.
kg
hrs
Battery Fuse Boxes
Section VI – Requirements
Environmental Guidelines for Contractors
Page 150 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
1.3.1.
Manufacturer
1.3.2.
Type designation
1.3.3.
Degree of protection
1.3.4.
Fuse rated current at 50oC
1.3.5.
Remote signalling
1.4.
110 V D.C. Switchboards
1.4.1.
Manufacturer
1.4.2.
Type designation
1.4.3.
Degree of protection
1.4.4.
Standards
1.4.5.
Rating voltage
V
1.4.6.
Rated current of busbars at 50oC ambient
A
Offered
IP 51
yes
IP 51
IEC 60439
110
temperature
1.4.7.
Busbar cross section
1.4.8.
Busbar insulation material
1.4.9.
Number of circuits
Section VI – Requirements
Environmental Guidelines for Contractors
mm2
Page 151 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
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:
1.4.15.
1.4.16.
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
Typical circuit diagram number
Offered
V/W
Details of Earth Fault Protection:
Manufacturer
Type Designation
Brochure number
Details of Undervoltage / Overvoltage
Protection:
1.4.17.
Manufacturer
Type Designation
Brochure number
Instruments
Manufacturer
Voltmeter (type)
Ammeter (type)
Instruments
Section VI – Requirements
Environmental Guidelines for Contractors
Page 152 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
1.4.18
Offered
Details of Moulded Case Circuit Breakers
(MCCBs)
Manufacturer
Type designation
Number of poles
Standards
Rated current at 50C
current (1 s)
Rated short-time withstand
Rated breaking capacity
Remote signaling
A
kA
kA
Yes
1.4.19
Details of Miniature Circuit Breakers (MCBs)
Manufacturer
Type designation
Number of poles
Standards
Rated current at 50C
current (1s)
Rated short-time withstand
Breaking capacity at
A
Remote signalling
kA
kA
Yes
Manufacturer quality system in accordance with
ISO 9000, 9001, 9002, 9003 and
Yes
9004
Section VI – Requirements
Environmental Guidelines for Contractors
Page 153 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
Type test certificate to be issued by independent
Offered
Yes
laboratory or independently witnessed
type test certificate available
C.
240 V AC
SUPPLY
1.
CGENERAL
UNINTERRUPTIBLE
POWER
The uninterruptible power supply
(UPS) shall consist but not be limited
to the following items:
two thyristor controlled 110 V DC
/ 240 V AC inverters
yes
two static interrupters and transfer
switches
yes
one 240/240 V single phase
isolating by-pass transformer
yes
two manual by-pass switches
one UPS distribution board
Section VI – Requirements
Environmental Guidelines for Contractors
yes
yes
Page 154 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
2.
INVERTER
2.1.
Manufacturer
2.2.
Type designation
2.3.
Degree of protection
2.4.
Rated output power
Offered
IP51
VA
min 1200 (to be
confirmed by
calculation)
2.5.
Rated input voltage and range
2.6.
Rated input current
2.7.
Rated output voltage
2.8.
Steady state voltage variation
2.9.
Rated output current
2.10.
Rated output frequency
2.11.
Steady state frequency variation
2.12.
Total harmonic distortion
2.13.
Rated output power factor
2.14.
Maximum harmonic distortion:
at any single frequency
at all frequencies
2.15.
Radio frequency interference (RFI) classification
2.16.
Output voltage rise time on turn-on
2.17.
Output voltage decay time on turn-off
2.18.
Maximum transient voltage variation after full
V%
A
V
%
A
Hz
%
%
%
%
ms
ms
load acceptance or rejection for:
1 cycle
%
0.1 s
%
1s
%
Section VI – Requirements
Environmental Guidelines for Contractors
Page 155 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
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
Offered
intensity D.C voltage surges
2.24.
Mean time between failure (MTBF)
2.25.
Dimensions
2.26.
Weight
3.
STATIC SWITCH
Years
mm
kg
Bidder shall fulfil the detailed
description of offered static switch
possibility with data and diagram
4.
ISOLATION BY-PASS TRANSFORMER
Section VI – Requirements
Environmental Guidelines for Contractors
Page 156 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
4.1.
Manufacturer
4.2.
Standard applied
4.3.
Type designation
4.4.
Maximum continuous capacity
4.5.
Number of phase
1
4.6.
Rated voltage under full load
V
4.7.
Protection class
IP
4.8.
Dimensions overall
4.9.
Total weight
5.
MANUAL BY-PASS SWITCH
5.1.
Manufacturer
Section VI – Requirements
Environmental Guidelines for Contractors
Offered
VA
mm
kg
Page 157 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
5.2.
Type of designation
5.3.
Rated current at 50°C
6.
DISTRIBUTION BOARD
6.1.
Manufacturer
6.2.
Type designation
6.3.
Degree of protection
6.4.
Busbar insulation material
6.5.
Number of circuits
6.6.
Details of Miniature Circuit Breakers (MCBs)
Manufacturer
Type designation
Number of poles
Section VI – Requirements
Environmental Guidelines for Contractors
Offered
A
IP 51
Page 158 of 677
J.
LV SERVICES EQUIPMENT
UNIT
DATA
Required
Standards
Rated current at 50oC
A
Rated breaking capacity
kA
Remote signalling
Offered
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
Section VI – Requirements
Environmental Guidelines for Contractors
yes
Page 159 of 677
K.
400/220kV POWER TRANSFORMERS (AIS-AIS)
UNIT
DATA
Required
19.5 1.
Offered
Power Transformer
Manufacturer & Place of manufacturing
Type designation
Type
Yes
Three phase Autotransformer, oil-immersed, core type
with stabilising tertiary winding
Standards
Altitude (If > 1000 m)
IEC 60076, 60137,
60214
m
Ambient temperature (Zone 1 – within IEC reference
values, e.g. inland at altitude)
-
Maximum
Average of hottest month
Annual average
oC
40
oC
30
oC
20
oC
45
oC
35
oC
30
Ambient temperature (Zone 2 – within IEC reference
values, e.g. Coastal with high annual average)
-
Maximum
Average of hottest month
Annual average
Section VI – Requirements
Environmental Guidelines for Contractors
Page 160 of 677
K.
400/220kV POWER TRANSFORMERS (AIS-AIS)
UNIT
DATA
Required
Mounting
Offered
Outdoor
Rated voltage ratio (HV/LV)
kV
400/220
Rated frequency
Hz
50
Vector group
YNa0(d)
Cooling – 2-stage
ONAN/ONAF1/ONA
F2 or
ONAN/ONAF/OFAF
Function of tertiary winding (TV)
Aux. supply
Method of earthing
-
HV (Series) winding
Solid
-
LV (Common) winding
Solid
-
TV winding
Grounded at one
point
Type of windings (graded/non-graded)
-
HV winding (Series)
Graded
-
LV winding (Common)
Graded
-
TV winding
Non-graded
Rated voltage of windings (Ur)
-
HV winding
Section VI – Requirements
Environmental Guidelines for Contractors
kV
400
Page 161 of 677
K.
400/220kV POWER TRANSFORMERS (AIS-AIS)
UNIT
DATA
Required
LV winding
TV winding
Note*: approximate; to manufacturer’s preference
kV
220
kV
11*
Offered
Highest voltage for equipment (Um)
-
HV winding
kV
420
-
LV winding
kV
245
-
TV winding
kV
12*
Rated lightning impulse withstand voltage at:
-
HV terminal
kV
1425
-
LV terminal
kV
1050
-
Neutral terminal
kV
170
-
TV winding
≥75
Rated switching impulse voltage
-
HV terminals
LV terminals
kV
1050
kV
850
kV
630
kV
416
kV
365
Rated power frequency withstand voltage at
-
HV terminal (design value only)
HV test value (IVPD enhancement level)
HV test value (IVPD PD measurement))
-
LV terminal (Design value)
kV
460
-
Neutral terminal
kV
70
-
TV terminal
kV
≥28
Section VI – Requirements
Environmental Guidelines for Contractors
Page 162 of 677
K.
400/220kV POWER TRANSFORMERS (AIS-AIS)
UNIT
DATA
Required
Rated power at site conditions (ONAF2 or OFAF)
MVA
200
Rated power at site conditions (ONAN)
MVA
120
Rated power of tertiary at site conditions (Full cooling)
MVA
5
Windings
K
65
Hot spot of windings
K
78
-
Top oil
K
60
-
Oil at inlet of cooler
K
-
Oil at outlet of cooler
K
-
Core
K
Offered
Maximum temperature rise at rated power at (IEC shown,
Zone 1)):
-
Maximum temperature rise at rated power at (,Zone 2):
-
Windings
Hot spot of windings
Top oil
-
Oil at inlet of cooler
Oil at outlet of cooler
Core
K
55
K
68
K
50
K
K
K
Temperature of winding due to short circuit duration of 2
s at rated load
-
HV side short circuit rating of 50kA
Section VI – Requirements
Environmental Guidelines for Contractors
oC
250
Page 163 of 677
K.
400/220kV POWER TRANSFORMERS (AIS-AIS)
UNIT
DATA
Required
-
LV side short circuit rating of 40 kA
No-load losses at rated voltage and rated frequency
oC
Offered
250
kW
Load losses at 75C, and rated frequency:
-
ONAF2 or OFAF rated power and principal tapping
-
ONAF2 or OFAF rated power and maximum voltage
ratio
-
ONAF2 or OFAF rated power and minimum voltage
ratio
-
At ONAN rated power and principal tapping
Total auxiliary losses at full load
kW
Maximum current density at rated power:
-
HV (Series) winding
A/mm2
-
LV (Common) winding
A/mm2
-
TV winding
A/mm2
-
Tapping
A/mm2
Symmetrical short circuit through current (duration 2 s) at
system fault rating
-
HV terminals (50 kA)
kA
-
LV terminals (40 kA)
kA
Magnetising current (HV winding)
-
At 90% rated voltage
A
-
At 100% rated voltage
A
-
At 110% rated voltage
A
Section VI – Requirements
Environmental Guidelines for Contractors
Page 164 of 677
K.
400/220kV POWER TRANSFORMERS (AIS-AIS)
UNIT
DATA
Required
Offered
Maximum flux density in iron at rated voltage, power
frequency and principal tapping at:
-
Wound limbs
T
-
Unwound limbs
T
-
Yokes
T
-
Shields
T
Maximum flux density in iron at power frequency,
principal tapping and 105% rated voltage at:
-
Wound limbs
T
-
Unwound limbs
T
-
Yokes
T
-
Shields
T
Type of tap changing
On-load
Manufacturer of on-load tap changer
Type designation of on-load tap changer
OLTC location (Provisional)
LV line end
Type of flux voltage variation
C.F.V.V
Tapping range (Provisional)
+5%/-15%
Section VI – Requirements
Environmental Guidelines for Contractors
Page 165 of 677
K.
400/220kV POWER TRANSFORMERS (AIS-AIS)
UNIT
DATA
Required
Tapping step
1.25%
Number of steps (positions)
16 (17)
Arrangement
Reversing)
of
tappings
(Linear,
Offered
Coarse/Fine,
Automatic voltage control
Yes
Impedance voltage range at 75C, rated frequency and
full rating (Provisional):
-
At principal tapping
> 14%
-
At maximum voltage ratio
>14%
-
At minimum voltage ratio
>14%
Resistance of winding at 75C and principal tapping:
-
HV side
/phase
-
LV side
/phase
Terminal connection
-
HV terminal
Outdoor bushing
-
LV terminal
Outdoor bushing
-
Neutral terminal
Outdoor bushing
-
TV terminal
Outdoor bushing
Section VI – Requirements
Environmental Guidelines for Contractors
Page 166 of 677
K.
400/220kV POWER TRANSFORMERS (AIS-AIS)
UNIT
DATA
Required
Offered
Bushing Creepage Distance (IEC class IV = 31mm/kV
-
HV terminal (420 kV)
LV terminal (kV)
Neutral terminal (36 kV)
TV terminal (12 kV)
mm
13020
mm
7595
mm
≥900
mm
300
Cable box insulation
N/A
-
HV terminal
“
-
LV terminal
“
-
HV neutral terminal
“
-
LV neutral terminal
“
Isolating links for test purposes
N/A
-
HV terminal
“
-
LV terminal
“
-
Tertiary earthing terminal
“
Current transformers
Refer to Tender
Drawings
HV-Bushing turrets
-
Number of cores
-
Rated extended primary current
-
Ratio (TR = turns ratio)
I core
A
II core
A
III core
A
Section VI – Requirements
Environmental Guidelines for Contractors
Page 167 of 677
K.
400/220kV POWER TRANSFORMERS (AIS-AIS)
UNIT
DATA
Required
-
-
-
-
Offered
Class
I core
II core
III core
Knee point voltage (Ek)
I core
V
II core
V
III core
V
Exciting current (IE ) at Ek
I core
mA
II core
mA
III core
mA
Rated output (Burden to be 25-100% rated burden)
I core
VA
II core
VA
III core
VA
LV Line (Only AIS connections)
-
Number of cores
-
Rated extended primary current
-
Ratio (TR = turns ratio)
-
Class
-
Knee point voltage (Ek)
-
Exciting current (IE ) at Ek
-
Rated output (Burden to be 25-100% rated burden)
Section VI – Requirements
Environmental Guidelines for Contractors
Page 168 of 677
K.
400/220kV POWER TRANSFORMERS (AIS-AIS)
UNIT
DATA
Required
Offered
Neutral (HV REF)
-
Number of cores
-
Rated extended primary current
-
Ratio (TR = turns ratio)
-
I core
V
Exciting current (IE ) at Ek
-
I core
Knee point voltage (Ek)
-
A
Class
-
I core
I core
mA
Rated output (Burden to be 25-100% rated burden)
I core
VA
Neutral – ends
-
Number of cores
-
Rated extended primary current
-
Ratio (TR = turns ratio)
-
I core
V
Exciting current (IE ) at Ek
-
I core
Knee point voltage (Ek)
-
A
Class
-
I core
I core
mA
Rated output (Burden to be 25-100% rated burden)
Section VI – Requirements
Environmental Guidelines for Contractors
Page 169 of 677
K.
400/220kV POWER TRANSFORMERS (AIS-AIS)
UNIT
DATA
Required
I core
All class PX CTs shall have a rated secondary current,
Offered
VA
A
ISN
Number of coolers per transformer
Number of stand-by coolers
Number of stand-by fans
Rating of each cooler
kW
Oil
-
Manufacturer
-
Type designation
-
Standards
-
Minimum flash point
-
Viscosity
IEC 60296
C
at 20C
mm2/s
at 50C
mm2/s
at 80C
mm2/s
-
Maximum dielectric strength for 1 min.
-
Dielectric factor
-
Acidity (neutralization value)
Section VI – Requirements
Environmental Guidelines for Contractors
kV
mgKOH/
g
Page 170 of 677
K.
400/220kV POWER TRANSFORMERS (AIS-AIS)
UNIT
DATA
Required
Oil preservation system
Offered
Air-bag
Types and arrangement of winding:
-
HV (Series) winding
-
LV (Common) winding
-
TV winding
-
Regulating
-
Windings arrangement (i.e. core/TV/LV/HV/Taps)
Conductor Material (e.g., copper, work hardened copper,
etc.)
-
HV (Series) windings
-
LV (Common)windings
-
TV windings
-
Regulating windings
Conductor insulation:
-
HV (Series) windings
-
LV (Common) windings
TV windings
-
Regulating windings
-
Connecting leads from winding to tap changer
Calculated thermal time constant
-
ONAN cooling
min
-
Full cooling
min
Section VI – Requirements
Environmental Guidelines for Contractors
Page 171 of 677
K.
400/220kV POWER TRANSFORMERS (AIS-AIS)
UNIT
DATA
Required
Offered
Oil circulation (i.e., natural/partially directed/directed)
To the windings:
-
HV windings (Series)
-
LV windings (Common)
-
Regulating windings
-
TV windings
Through the windings:
-
HV windings (Series)
-
LV windings (Common)
-
Regulating windings
-
TV windings
Core construction:
-
Taped/banded/bolted limbs
-
Taped/banded/bolted yokes
-
Taping/banding material
-
Number of limbs
-
Number of limbs wound
-
Type of joint in magnetic core (90% butt, overlap,
mitre, etc.)
-
Type of core steel
-
Specific loss of core steel at 1.5 tesla
W/kg
Thickness of transformer tank
-
Sides
Section VI – Requirements
Environmental Guidelines for Contractors
mm
Page 172 of 677
K.
400/220kV POWER TRANSFORMERS (AIS-AIS)
UNIT
DATA
Required
-
Bottom
mm
-
Top
mm
Offered
Material of transformer tank
Thickness of radiator plates
mm
Total volume of conservator
Litre
Minimum volume of conservator between highest and
lowest levels as percentage of total cold oil at 15C
volume of transformer
Volumetric expansion of oil from 0 to 90C
7.5%
m3
Pressure increase inside tank due to expansion of oil
Masses of transformer
-
Core and coils
kg
-
Total mass excluded oil
kg
-
Oil mass
-
in tank
kg
in radiators
kg
total
kg
Total mass
Mass of transformer as arranged for transport (heaviest
part)
Section VI – Requirements
Environmental Guidelines for Contractors
kg
kg
Page 173 of 677
K.
400/220kV POWER TRANSFORMERS (AIS-AIS)
UNIT
DATA
Required
Offered
Dimensions of transformer arranged for transport
-
Height
m
-
Width
m
-
Length
m
Filling medium of transformer tank for shipment
Maximum sound pressure level (NEMA TR1 – 5dB(A))
dB(A)
Conservator vessel, radiators, fan grilles, control boxes
or cubicles and pipework anticorrosion protection
74
Hot dip galvanized
and painted
Tank anticorrosion protection
Supply voltage for transformer auxiliaries
V
415/240 AC
Control/Protection voltage
V
110 DC
Manufacturer quality assurance
-
According to ISO 9000, 9001, 9002, 9003 and 9004
Yes
Validity
Type test certificate to be issued by:
-
1.78
Independent laboratory or independently witnessed
type test certificate
Yes
Special Tests to be performed:
As Type test = T
As Routine test = R
Section VI – Requirements
Environmental Guidelines for Contractors
Page 174 of 677
K.
400/220kV POWER TRANSFORMERS (AIS-AIS)
UNIT
DATA
Required
-
Measurement of zero-sequence impedance
Determination of sound levels
Measurement of harmonics of no-load current
Frequency response analysis (FRA)
Check of external coating
Short circuit withstand test/calculations
Offered
Yes (T)
Yes (T)
Yes (T)
Yes (R)
Yes R)
Yes (Calculation)
19.6
Section VI – Requirements
Environmental Guidelines for Contractors
Page 175 of 677
L.
400 kV 100 MVAr SHUNT REACTOR
UNIT
DATA
Required
19.7 1.
Offered
Shunt Reactor
1.1
Manufacturer & Place of manufacturing
1.2
Type designation
1.3
Type
1.4
Construction (Gapped core/Air-cored shielded)
1.5
Principal standards
1.6
Max ambient (Design) temperature
oC
40
Annual average temperature
oC
30
1.7
Altitude
m
<1000
1.8
Rated voltage
kV
400
1.9
Highest voltage for equipment, Um; Reactor must be
able to operate continuously at this voltage.
kV
420
1.10
Rated frequency
Hz
50
Section VI – Requirements
Environmental Guidelines for Contractors
Outdoor, Oil
Immersed
IEC 60076-1,-2,-3, 6
Page 176 of 677
L.
400 kV 100 MVAr SHUNT REACTOR
UNIT
DATA
Required
1.11
Vector group
1.12
Cooling
1.13
Method of earthing
1.14
Type (graded/non-graded) of windings
1.15
Rated lightning impulse withstand voltage at:
ONAN
Solid
Graded
HV terminals
kV
1425
-
HV neutral-end terminals
kV
125
kV
1050
Rated switching impulse voltage
1.17
Rated power frequency withstand voltage at
1.18
YN
-
1.16
Offered
-
HV terminals (IVPD enhancement)
kV
416
-
HV neutral-end terminals
kV
50
A
144
A
152
MVAr
100
/phase
1600
Rated power:
-
Rated current IN
Max continuous current at Um
-
Rated (reactive) power at Ur
-
Rated reactance XN
-
Zero sequence reactance X0
-
Mutual reactance XM
Section VI – Requirements
Environmental Guidelines for Contractors
/phase
Page 177 of 677
L.
400 kV 100 MVAr SHUNT REACTOR
UNIT
DATA
Required
1.19
Magnetic characteristic: Linear to percent of rated
voltage
1.20
Maximum temperature rise at rated power at:
%
105
-
Windings
K
55
-
Hot spot of windings
K
68
-
Top oil
K
50
-
Oil at inlet of cooler
K
-
Oil at outlet of cooler
K
-
Core
Tank Wall
K
Offered
K
1.21
Losses at rated voltage and rated frequency
1.22
Maximum current density at rated power:
-
1.23
HV winding
kW
A/mm2
Maximum flux density at rated voltage, power frequency:
-
Wound limbs/core packets
T
-
Yokes
Shield
T
T
1.24
Resistance of winding at 75C and principal tapping:
Section VI – Requirements
Environmental Guidelines for Contractors
/phase
Page 178 of 677
L.
400 kV 100 MVAr SHUNT REACTOR
UNIT
DATA
Required
1.25
Offered
Terminal connection
-
Bushing standards
Pollution Class
Is KD Correction factor required?
IEC 60137
(mm/kV)
IV (31)
Yes
-
HV terminals
Minimum Voltage Class
Minimum Current rating
Manufacturer
Manufacturers designation
Type (OIP/RIP)
-
HV neutral-end terminals
Minimum Voltage Class
Minimum Current rating
Manufacturer
Manufacturers designation
Type (OIP/RIP/Porcelain)
Outdoor Bushing
kV
420
A
400
Bushing
kV
24
A
400
Porcelain
1.26
Current transformers
1.26a
HV-Bushing turrets (provisional – refer to protection
drawings)
-
Number of cores
-
Rated extended primary current
-
Ratio (TR = turns ratio)
-
2
I core
A
800/400/1
II core
A
800/400/1
Class
I core
5P20
II core
5P20
Section VI – Requirements
Environmental Guidelines for Contractors
Page 179 of 677
L.
400 kV 100 MVAr SHUNT REACTOR
UNIT
DATA
Required
-
-
-
1.26b
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
HV Neutral-End provisional – refer to protection
drawings)
-
Number of cores/phase
-
Rated extended primary current
-
Ratio (TR = turns ratio)
-
-
5P20
I core
I core
V
Exciting current (IE ) at Ek
-
800/400/1
I core
Knee point voltage (Ek)
-
1
Class
I core
mA
Rated output (Burden to be 25-100% rated
burden)
1.26b
Offered
I core
VA
HV Neutral
Section VI – Requirements
Environmental Guidelines for Contractors
Page 180 of 677
L.
400 kV 100 MVAr SHUNT REACTOR
UNIT
DATA
Required
-
Number of cores
-
Rated extended primary current
-
Ratio (TR = turns ratio)
-
I core
I core
I core
All class PX CTs shall have a rated secondary current,
ISN
mA
VA
A
Radiators
-
1.28
V
Rated output (Burden to be 25-100% rated
burden)
1.27
5P20
I core
Exciting current (IE ) at Ek
-
800/400/1
I core
Knee point voltage (Ek)
-
1
Class
-
Offered
Tank or Separate Mounting
Number banks
Number of radiators elements per bank
Oil
-
Manufacturer
-
Type designation
-
Standards
-
Minimum flash point
Section VI – Requirements
Environmental Guidelines for Contractors
IEC 60296
C
Page 181 of 677
L.
400 kV 100 MVAr SHUNT REACTOR
UNIT
DATA
Required
-
1.29
Offered
Viscosity
at 20C
mm2/s
at 50C
mm2/s
at 80C
mm2/s
-
Maximum dielectric strength for 1 min.
-
Dielectric factor
-
Acidity (neutralization value)
kV
mgKOH/
g
Oil preservation system
-
Type (Bag/Membrane)
Breather
Oil Level Gauge
Maintenance-free
Magnetic
1.30
Types and arrangement of winding:
1.31
Conductor Material (e.g., copper, work hardened
copper, etc.)
1.32
Conductor type (CTC, other)
1.33
Conductor insulation:
1.34
Calculated thermal time constant
1.35
Oil circulation (i.e., natural/partially directed/directed)
Hours
To the windings:
Section VI – Requirements
Environmental Guidelines for Contractors
Page 182 of 677
L.
400 kV 100 MVAr SHUNT REACTOR
UNIT
DATA
Required
Offered
Through the windings:
1.36
1.37
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
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
Section VI – Requirements
Environmental Guidelines for Contractors
Page 183 of 677
L.
400 kV 100 MVAr SHUNT REACTOR
UNIT
DATA
Required
1.41
Minimum volume of conservator between highest and
lowest levels as percentage of total cold oil at 15C
volume of transformer
1.42
Volumetric expansion of oil from 0 to 90C
1.43
Pressure increase inside tank due to expansion of oil
1.44
Masses of reactor
7.5%
m3
-
Core and coils
kg
-
Total mass excluded oil
kg
-
Oil mass
-
in tank
kg
in radiators
kg
total
kg
Total mass
1.45
Mass of reactor as arranged for transport (heaviest part)
1.46
Dimensions of reactor arranged for transport
kg
kg
-
Height
m
-
Width
m
-
Length
m
1.47
Filling medium of reactor tank for shipment
1.48
Maximum noise level
Section VI – Requirements
Environmental Guidelines for Contractors
Offered
dB(A)
86
Page 184 of 677
L.
400 kV 100 MVAr SHUNT REACTOR
UNIT
DATA
Required
Offered
1.49
Conservator vessel, radiators, control boxes or cubicles
and pipework anticorrosion protection
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
-
1.54
Yes
According to ISO 9000, 9001, 9002, 9003 and 9004;
List current accreditation
Type test certificate to be issued by:
-
1.55
Hot dip galvanized
and painted
Yes
Independent laboratory or independently witnessed
type test certificate
Routine tests
The IVPD test IEC 60076-3:2013 based on Ur
-
1 x 3-phase test
Enhanced level
1 hour duration
Max PD level during 1 hour stage
To IEC 60076-6
kV
Yes
kV
Yes
kV
416
kV
365
pC
250
Note 2: The method of carrying out loss measurements
and any limitations of manufacturer’s test field which
restricts the test programme are to be advised with bid
documents.
1.56
Special Tests to be performed:
(R=Routine/All units: T=Type/1 unit))
Section VI – Requirements
Environmental Guidelines for Contractors
Page 185 of 677
L.
400 kV 100 MVAr SHUNT REACTOR
UNIT
DATA
Required
-
Offered
Yes(T)
Measurement of zero-sequence reactance
Measurement of mutual reactance
Determination of sound levels
Measurement of harmonics
Verification of magnetic characteristic
Yes(T)
Yes(R)
Yes(R)
Yes (T)
M. 11/0.415kV; 500kVA EARTHING/AUXILIARY
TRANSFORMERS (CAF-CAF)
UNIT
DATA
Required
Offered
19.8
1.
EARTHING/AUXILIARY TRANSFORMER 11/0.415KV;
WITH 500 KVA AUXILIARY WINDING
Section VI – Requirements
Environmental Guidelines for Contractors
Page 186 of 677
M. 11/0.415kV; 500kVA EARTHING/AUXILIARY
TRANSFORMERS (CAF-CAF)
UNIT
DATA
Required
Offered
Manufacturer & Place1.of manufacturing
1.1
Type designation
Type
Three phase, oil
immersed,
core type
Standards
IEC 60076-1, -2,
-3, -5, -6,-10,
NEMA TR1
(Noise)
Mounting
Outdoor, wheel
Rated voltage ratio
kV
11/0.415
Rated frequency
Hz
50
Vector group
ZNyn1
Cooling
ONAN
Method of earthing
-
HV winding
Solid
-
LV winding
Solid
Type (graded/non-graded) of windings
-
HV winding
Section VI – Requirements
Environmental Guidelines for Contractors
Non-graded
Page 187 of 677
M. 11/0.415kV; 500kVA EARTHING/AUXILIARY
TRANSFORMERS (CAF-CAF)
UNIT
DATA
Required
-
Offered
Non-graded
LV auxiliary winding
Rated voltage of windings
-
HV winding
kV
11
-
LV auxiliary winding
kV
0.415
Highest voltage for equipment
-
HV winding
kV
12
-
LV auxiliary winding
kV
0.433
kV
75
Rated lightning impulse withstand voltage at HV Terminal
Rated power frequency withstand voltage at
-
HV terminal
kV
28
-
LV terminal
kV
3
-
HV neutral terminal
kV
28
kVA
500
A
1050
Rated power at site conditions
Limitation and withstanding of fault current in neutral for 30s
Maximum temperature rise at rated power at:
Section VI – Requirements
Environmental Guidelines for Contractors
Page 188 of 677
M. 11/0.415kV; 500kVA EARTHING/AUXILIARY
TRANSFORMERS (CAF-CAF)
UNIT
DATA
Required
-
Windings
K
55
-
Hot spot of windings
K
68
-
Top oil
K
50
-
Oil at inlet of cooler
K
-
Oil at outlet of cooler
K
-
Core
K
Offered
Temperature rise of winding due to short circuit duration of
2 s and HV side short circuit current of 25 kA
-
Copper windings
Aluminium windings
No load losses at rated voltage and rated frequency
oC
250
oC
200
kW
Load losses at 75C, and rated frequency, rated power and
principal tapping:
Maximum current density at rated power:
-
HV winding
A/mm2
-
LV auxiliary winding
A/mm2
Symmetrical short circuit withstand current (duration 2 s) at:
-
HV terminal
kA
-
LV auxiliary terminal
kA
25
Magnetising current (HV winding)
-
At 90% rated voltage
Section VI – Requirements
Environmental Guidelines for Contractors
A
Page 189 of 677
M. 11/0.415kV; 500kVA EARTHING/AUXILIARY
TRANSFORMERS (CAF-CAF)
UNIT
DATA
Required
-
At 100% rated voltage
A
-
At 110% rated voltage
A
Maximum flux density in core at rated voltage, power frequency
and principal tapping
Type of tap changing
Offered
T
Off-load
Type designation of off-load tap changer
Tapped winding
Tapping range
HV
+5% -5%
Tapping step
2.5%
Number of steps (positions)
4 (5)
Impedance voltage range at 75C and principal tapping:
-
At principal tapping
> 4%
-
At maximum voltage ratio
>4%
-
At minimum voltage ratio
>4%
Section VI – Requirements
Environmental Guidelines for Contractors
Page 190 of 677
M. 11/0.415kV; 500kVA EARTHING/AUXILIARY
TRANSFORMERS (CAF-CAF)
UNIT
DATA
Required
Offered
Resistance of winding at 75C and principal tapping:
-
HV side
/phase
-
LV auxiliary side
/phase
Zero phase sequence impedance of inter-star windings at 75C
(LV windings open-circuit)
/phase
Zero phase sequence impedance of LV windings at 75C
(inter-star windings open-circuit)
/phase
Terminal connection
HV + HVN terminal
Note*: Separable connector, e.g. Euromold or similar
-
Air-filled cable
box*
LV + LVN terminal
Air-filled cable
box
Isolating link for test purposes (not required if separable
connector allows testing)
-
HV terminal
No
-
LV terminal
No
LV fused switch incorporated in LV terminal box
Section VI – Requirements
Environmental Guidelines for Contractors
A
Yes
Page 191 of 677
M. 11/0.415kV; 500kVA EARTHING/AUXILIARY
TRANSFORMERS (CAF-CAF)
UNIT
DATA
Required
Offered
Mounting of current transformer at
-
HV terminal
-
Neutral terminals
In tank
In tank or box
Current transformers
Refer to Tender
Drawings
HV Line
-
Number of cores
-
Rated extended primary current
-
Ratio (TR = turns ratio)
-
-
-
-
I core
II core
A
Class
I core
II core
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
HV Neutral
Section VI – Requirements
Environmental Guidelines for Contractors
Page 192 of 677
M. 11/0.415kV; 500kVA EARTHING/AUXILIARY
TRANSFORMERS (CAF-CAF)
UNIT
DATA
Required
-
Number of cores
-
Rated extended primary current
-
Ratio (TR = turns ratio)
-
-
-
-
I core
II core
III core
Offered
A
Class
I core
II core
III core
Knee point voltage (Ek)
I core
II core
III core
Exciting current (IE ) at Ek
I core
II core
III core
Rated output (Burden to be 25-100% rated burden)
I core
II core
III core
LV Line (Only AIS connections)
-
Number of cores
-
Rated extended primary current
Section VI – Requirements
Environmental Guidelines for Contractors
Page 193 of 677
M. 11/0.415kV; 500kVA EARTHING/AUXILIARY
TRANSFORMERS (CAF-CAF)
UNIT
DATA
Required
-
Ratio (TR = turns ratio)
-
I core
Exciting current (IE ) at Ek
-
I core
Knee point voltage (Ek)
-
I core
Class
-
Offered
I core
Rated output (Burden to be 25-100% rated burden)
I core
LV Neutral
-
Number of cores
-
Rated extended primary current
-
Ratio (TR = turns ratio)
-
Class
-
I core
Exciting current (IE ) at Ek
-
I core
Knee point voltage (Ek)
-
I core
I core
Rated output (Burden to be 25-100% rated burden)
I core
All class PX CTs shall have a rated secondary current, I SN
Section VI – Requirements
Environmental Guidelines for Contractors
Page 194 of 677
M. 11/0.415kV; 500kVA EARTHING/AUXILIARY
TRANSFORMERS (CAF-CAF)
UNIT
DATA
Required
Offered
Oil:
Manufacturer
Type designation
Standards
Minimum flash point
Viscosity
IEC 60296
oC
At 20oC
mm2/s
At 50oC
mm2/s
At 80oC
mm2/s
Maximum dielectric strength for 1 min
Dielectric factor
Acidity (neutralization value)
kV
mgKOH/g
Type of dehydrating breather (Non-sealed transformers)
Silicagel
Conductor material (e.g. copper, work hardened copper, etc.):
HV windings
LV windings
Conductor insulation:
HV winding
LV winding
Calculated thermal time constant
Section VI – Requirements
Environmental Guidelines for Contractors
min
Page 195 of 677
M. 11/0.415kV; 500kVA EARTHING/AUXILIARY
TRANSFORMERS (CAF-CAF)
UNIT
DATA
Required
Offered
Thickness of transformer tank
-
Sides
mm
-
Bottom
mm
-
Top
mm
Material of transformer tank
Thickness of radiator plates
mm
Total volume of conservator
litres
Masses of transformer
-
Core and coils
kg
-
Total mass excluded oil
kg
-
Oil mass
in tank
in radiators
-
kg
kg
total
kg
Total mass
kg
Mass of transformer as arranged for transport (heaviest part)
kg
Dimensions of transformer arranged for transport
-
Height
m
-
Width
m
-
Length
m
Section VI – Requirements
Environmental Guidelines for Contractors
Page 196 of 677
M. 11/0.415kV; 500kVA EARTHING/AUXILIARY
TRANSFORMERS (CAF-CAF)
UNIT
DATA
Required
Maximum noise level (to NEMA TR1)
dB
Conservator vessel, radiators, fan grilles, control boxes or
cubicles and pipework anticorrosion protection
Offered
56
Hot dip
galvanized and
painted
Tank anticorrosion protection
Control/Protection voltage
Manufacturer quality assurance
-
V
110 DC
Yes
According to ISO 9000, 9001, 9002, 9003 and 9004
Type test certificates to be issued by:
-
1.59
Independent Laboratory or independently witnessed type
test certificate
Yes
Special Tests to be performed:
-
Measurement of zero-sequence impedance
Determination of sound levels
Measurement of harmonics of no-load current
Vibration test
Yes
No
No
No
Section VI – Requirements
Environmental Guidelines for Contractors
Page 197 of 677
N. NEUTRAL EARTHING RESISTOR/ REACTOR
UNIT
DATA
Required
1.1.
Manufacturer
1.2.
Type
1.3.
Standards
1.4.
Rated voltage
kV
11
1.5.
Rated fault current
A
Refer to
drawings
1.6.
Continuous current
A
1.7
Maximum operating time
1.8
Resistor material resistance cold
1.9
Temperature rise at rated voltage after 10 sec
1.10
Protection class
1.11
Installation: indoor/ outdoor
Section VI – Requirements
Environmental Guidelines for Contractors
Offered
IEEE 32,
IEC61000-6-3
sec
10
Ohm
Deg C
1000
Page 198 of 677
O. 400kV OVERHEAD LINE - Line conductor: 4 x Lark
UNIT
DATA
Required
1
1.1
LINE CONDUCTOR FITTINGS
ACSR
Complete line conductor:
mm2
990
Number of conductors per phase
No
4
Distance between conductor centres of one phase
mm
400
1.1.1
Nominal area per phase
1.1.2
1.1.3
1.2
Each single conductor:
1.2.1
Code name
1.2.2
International Standard
1.2.3
National standard
1.2.4
Material of conductor
1.2.5
Number and diameter of wires
1.2.6
Total area of conductor
mm2
Aluminium/
Galvanised
Steel
Al 30/2.92
St 7/2.92
247.8
1.2.7
Overall diameter of stranded conductor
mm
20.44
1.2.8
Resistance of conductor (dc) at 20˚C
ohm/km
0.1441
1.2.9
Mass of conductor (without grease)
kg/km
925
1.2.10
Total mass of greased conductor (greased to Case 2 of IEC
61089)
kg/km
1.2.11
Ultimate rated strength of conductor
Newton
90,250
1.2.12
Maximum tension of conductor in still air at “everyday”
temperature
Newton
18,050
1.2.13
Assumed equivalent modulus of elasticity of conductor
N/mm2
80,420
1.2.14
Assumed equivalent coefficient of linear expansion of
conductor
per ˚C
1.78 x 10-5
1.2.15
Maximum length of conductor on drum
km
5
120
1.3
Offered
Lark
IEC 61089
ASTM B 232
No/mm
CONDUCTOR GREASE:
1.3.1
Type
1.3.2
Minimum drop-point temperature
˚C
Mass of grease per kilometre of conductor (all inner layers
greased – Case 2 to IEC 61089)
kg
Section VI – Requirements
Environmental Guidelines for Contractors
Page 199 of 677
O. 400kV OVERHEAD LINE - Line conductor: 4 x Lark
UNIT
DATA
Required
1.4
1.4.1
Type of system (vibration damper + spacer or spacer
damper)
1.4.2
Vibration damper (if proposed)
type
1.4.2.1
Type of vibration damper
1.4.2.2
National / International standard
1.4.2.3
Number of wires in messenger cable
No
19
1.4.2.4
Conductor diameter range
mm
20.44
1.4.2.5
Mass of damper
1.4.2.6
Maximum span for:
1.4.2.7
1.4.3
Offered
VIBRATION DAMPING SYSTEM:
type
Stockbridge
IEC 61897
kg
a.
One vibration damper at each end of span
m
b.
Two vibration dampers at each end of span
m
c.
Three vibration dampers at each end of span
m
Dimensions from clamp mouth to vibration damper
attachment:
a.
First damper
mm
b.
Second damper when required
mm
c.
Third damper when required
mm
Spacer or spacer damper
1.4.3.1
Type of spacer or spacer damper
1.4.3.2
National / International standard
1.4.3.3
Conductor diameter range
1.4.3.4
Mass
1.4.3.5
Symmetrical / asymmetrical in-span spacing
1.4.3.6
Maximum sub-span length
IEC 61854
mm
20.44
kg
m
NO’S 2 TO 3 NOT USED
Section VI – Requirements
Environmental Guidelines for Contractors
Page 200 of 677
O. 400kV OVERHEAD LINE - Line conductor: 4 x Lark
4.
4.1
4.1.1
4.2
UNIT
DATA
Required
Aluminium
Clad Steel GW
EARTH CONDUCTOR AND FITTINGS
Complete earth conductor system
Number of ACS earth conductors
No
1
Each single earth conductor
4.2.1
International Standard No
4.2.2
Material of conductor
4.2.3
Number and diameter of wires
4.2.4
ASTM B416
Aluminium-clad
steel
No/mm
7/3.26
Total area of conductor
mm2
58.6
4.2.5
Overall diameter of conductor
mm
9.78
4.2.6
Mass of conductor
kg/km
390
4.2.7
Ultimate strength of conductor
Newton
71,000
4.2.8
Maximum tension of conductor in still air at “everyday”
temperature
Newton
4.2.9
Assumed equivalent modulus of elasticity of conductor
N/mm2
162,000
4.2.10
Assumed equivalent coefficient of linear expansion of
conductor
per C
12.96 x 10-6
4.2.11
Minimum bending radius
mm
4.2.12
Minimum length of conductor on drum
km
4.3
4.3.1
4.4.1
4
Individual wires before stranding
Aluminium-clad steel
a.
4.4
Offered
ASTM B415
Grade of steel
20SA
Vibration damping system
Maximum span for:
a.
One vibration damper at each end of span
m
b.
Two vibration dampers at each end of span
m
c.
Three vibration dampers at each end of span
m
OPGW EARTH CONDUCTOR AND FITTINGS
5
5.1
EARTH CONDUCTOR AND FITTINGS
OPGW
Complete optical earth conductor system
Section VI – Requirements
Environmental Guidelines for Contractors
Page 201 of 677
O. 400kV OVERHEAD LINE - Line conductor: 4 x Lark
5.1.1
5.2
Number of OPGW earth conductors
UNIT
No
DATA
Required
1
Each single optical earth conductor (OPGW)
5.2.1
International Standard No
5.2.2
Material of conductor
5.2.3
Number and diameter of wires
5.2.4
Total area of conductor
mm2
5.2.5
Overall diameter of conductor
mm
5.2.6
Mass of conductor
IEE 1138
IEC 60794-4-1
Aluminium
Alloy/
Aluminium-clad
steel
5.2.7
5.2.8
No/mm
kg/km
<850
Ultimate strength of conductor
Newton
≥ 93,000
Maximum tension of conductor in still air at “everyday”
temperature
Assumed equivalent modulus of elasticity of conductor
Newton
> 18,500
N/mm2
≥ 70,000
per C
≤1.98 x 10-5
5.2.11
Assumed equivalent coefficient of linear expansion of
conductor
Minimum bending radius
5.2.12
Short circuit current rating
5.2.13
Minimum length of conductor on drum
5.2.9
5.2.10
5.3
5.3.1
5.3.2
5.4
5.4.1
6
Offered
mm
kA2s
496
km
4
%IACS
IEC 60104
52.5
Individual wires before stranding
Aluminium alloy Standard
Minimum conductivity at 20ºC
Aluminium-clad steel Standard
Grade of Steel
Vibration damping system
IEC 60232
20SA
Maximum span for:
a.
One vibration damper at each end of span
m
b.
Two vibration dampers at each end of span
m
c.
Three vibration dampers at each end of span
m
OPGW EARTH CONDUCTOR
FIBRE OPTIC TRANSMISSION SYSTEM
6.1
Fibre optic data
6.1.1
Type
Section VI – Requirements
Environmental Guidelines for Contractors
Non-Zero
DispersionShifted SingleMode acc. to
ITU G.655.
Page 202 of 677
O. 400kV OVERHEAD LINE - Line conductor: 4 x Lark
UNIT
6.1.2
Wavelength
6.1.3
Number of fibres
6.1.4
Transmission attenuation:
a.
at 1550 nm
b.
at 1625 nm
6.1.5
Transmission bandwidth
6.1.6
Fibre identification
6.1.7
Chromatic dispersion
nm
DATA
Required
1550/1625
48
dB/k
m
dB/k
m
MHz/
km
colour
code
< 0.22
< 0.24
> 10 000
a.
at 1550 nm
b.
at 1625 nm
6.1.8
Splicing loss
ps/nm
.km
ps/nm
.km
dB
6.1.9
Polarisation Mode Dispersion (PMD)
6.1.10
Minimum bending radius
ps/√k
m
mm
<2
< 12.4
< 0.1
< 20
SDH Optical Multiplex Equipment and Regenerative
Repeaters
6.2.1
Transmission mode
6.2.2
Operating wavelength
6.2.3
Optical transmitter
DFB laser
diode
6.2.4
Optical detector
avalanche
photodiode
6.2.5
a.
Optical transmission rate:
6.2
b.
Digital
nm
1550
STM-1
Mb/s
155.52
STM-4
Mb/s
622.08
6.2.6
Optical interface
Compliant with
ITU Rec G957
and Rec G958
6.2.7
Electrical digital interface
Compliant with
ITU Rec G709
6.2.8
Maximum input attenuation
6.2.9
Maximum admissible jitter
6.2.10
Transmission delay
Section VI – Requirements
Environmental Guidelines for Contractors
Offered
dB
<6
Compliant with
ITU Rec G812
s
<1
Page 203 of 677
O. 400kV OVERHEAD LINE - Line conductor: 4 x Lark
UNIT
6.2.11
Operating voltage
6.3
Solar arrays power supply system
6.3.1
Type of solar cell
Silicon based
6.3.2
Type of batteries
Nickel
cadmium
6.3.3
Minimum battery autonomy (continuous operation)
hours
96
6.3.4
Output voltage
V dc
48 (+5%)
6.3.5
Charger and control unit
6.3.6
Manufacturer
6.3.7
Type reference
6.3.8
Place of manufacture
6.3.9
Is local technical support provided in Kenya?
6.3.10
Minimum lighting level required for proper operation of
the solar arrays power supply system
6.3.11
Output supply voltage range of the system
6.3.12
Total power output of the solar arrays system
6.3.13
Details of control equipment provided
6.3.14
Charging current
6.3.15
Details of alarm monitoring facilities provided
6.3.16
Details of remote alarm indications provided
6.3.17
Operating temperature range
6.3.18
Operating relative humidity range (non-condensing)
6.3.19
Protection rating
IP
Standard
6.3.20
Vibration
IEC
Standard
6.3.21
Shock
IEC
Standard
6.3.22
Dimension of equipment (H W D)
mm
mm
mm
6.3.23
Mass
6.3.24
Mean time between failures (MTBF)
Section VI – Requirements
Environmental Guidelines for Contractors
DATA
Required
48 (+20%
15%)
Vdc
Y/N
lux
Offered
-
V dc
W
A
ºC
%rh
kg
hours
Page 204 of 677
O. 400kV OVERHEAD LINE - Line conductor: 4 x Lark
UNIT
DATA
Required
6.3.24
6.4
Mean time to repair (MTTR)
Optical regenerative repeaters
(to be completed for each type of repeater used)
6.4.1
Manufacturer
6.4.2
Model reference
6.4.3
Place of Manufacture
6.4.4
Number Provided
No
6.4.5
Is local technical support provided in Kenya?
Y/N
6.4.6
Regenerator section length (without the use of optical
booster/amplifiers)
km
6.4.7
km
6.4.8
Regenerator section length (with the use of optical
boosters/amplifiers)
Nominal operating wavelength
nm
6.4.9
Transmission rate
6.4.10
Type of optical transmitter
6.4.11
Minimum transmit level
dBm
6.4.12
Maximum transmit level
dBm
6.4.13
Type of optical receiver
6.4.14
Receiver sensitivity for BER 10-9
6.4.15
Is interworking with PDH systems possible?
6.4.16
Details of interfacing with the
Telecommunications Management System
6.4.17
Service channels:
a. Number of channels
b. Bit rate
c. Type of interface
Engineers order wire
a. 2 wire/4 wire interface
b. Impedance
c. Bit rate (for digital)
d. Selective calling facility
6.4.18
Offered
hours
Section VI – Requirements
Environmental Guidelines for Contractors
Mb/s
dBm
Page 205 of 677
O. 400kV OVERHEAD LINE - Line conductor: 4 x Lark
UNIT
DATA
Required
6.4.19
Details of alarm monitoring facilities
6.4.20
Voltage limits for satisfactory operation
a. Nominal voltage
V dc
b. Maximum voltage
V dc
c. Minimum voltage
V dc
6.4.21
Anticipated loading in volt-amperes at 48 V dc.
6.4.22
Electromagnetic interference
IEC
Standard
C
6.4.23
Operating temperature range
VA
6.4.24
Operating relative humidity range
(non-condensing)
6.4.25
Protection rating
IP
Standard
6.4.26
Vibration
IEC
Standard
6.4.27
Shock
IEC
Standard
6.4.28
Details of ventilation required
6.4.29
Mass of complete equipment
6.4.30
Mean time between failures (MTBF)
hours
6.4.31
Mean time to repair (MTTR)
hours
6.4.32
Dimensions of cubicle rack
6.5
Solar cells
(to be completed for each type of solar cell used)
%rh
Manufacturer
6.5.2
Type reference
6.5.3
Place of manufacture
6.5.4
6.5.5
Type of solar cells
6.5.6
Lighting level range required for proper operation of the
solar cell
6.5.7
Voltage output range of each solar cell
6.5.8
Power output of each solar cell
6.5.9
Method of mounting solar panels
Section VI – Requirements
Environmental Guidelines for Contractors
kg
mm
mm
mm
6.5.1
Number of solar cells provided
Offered
No
lux
V dc
W
Page 206 of 677
O. 400kV OVERHEAD LINE - Line conductor: 4 x Lark
UNIT
DATA
Required
6.5.10
Operating temperature range
6.5.11
Operating relative humidity range (non-condensing)
6.5.12
Protection rating
IP
Standard
6.5.13
Vibration
IEC
Standard
6.5.14
Shock
IEC
Standard
6.5.15
Dimension of each solar array (H W D)
6.5.16
Dimension of complete solar arrays system (H W D)
mm
mm mm
6.5.17
Mass of each solar array
kg
6.5.18
Mass of complete solar arrays system
kg
%rh
mm
mm mm
Batteries
(to be completed for each type of battery used)
6.6.1
Manufacturer
6.6.2
Type reference
6.6.3
Place of manufacture
6.6.4
Number of batteries provided
6.6.5
Type of batteries
6.6.6
Number of cells per battery
6.6.7
Voltage output of each battery cell
V dc
6.6.8
Battery voltage output range
V dc
6.6.9
Total capacity of the battery system
6.6.10
Time required to recharge totally discharged batteries to
full capacity
hours
6.6.11
hours
6.6.12
Ampere hour capacity at 96 hour discharge rate with
average temperature at 50ºC
Ah
6.6.13
Operating temperature range
ºC
6.6.14
Operating relative humidity range (non-condensing)
6.6.15
Dimension of each battery (H W D)
6.6
Autonomy of the battery backup support
Section VI – Requirements
Environmental Guidelines for Contractors
Offered
ºC
No
No
Ah
%rh
mm
mm mm
Page 207 of 677
O. 400kV OVERHEAD LINE - Line conductor: 4 x Lark
UNIT
DATA
Required
6.6.16
Dimension of complete battery backup system (H W
D)
6.6.17
Mass of each battery/ complete battery backup system
7.0
Insulator and fittings
7.1
Insulator units: Long Rod
7.1.1
kg
Suspension units
7.1.1.1
Shed profile
7.1.1.2
Appropriate IEC Number
7.1.1.3
Material
7.1.1.4
Coupling
a.
Standard
b.
Type (recommended only)
c.
Size (recommended only)
aerodynamic
IEC 61109
Silicone rubber
IEC 61120
Ball/Socket
20
7.1.1.5
Minimum failing load
kN
7.1.1.6
Outside diameter:
mm
7.1.1.7
Mass of unit
kg
7.1.1.8
Minimum dry lightning impulse withstand
kV
7.1.1.9
Minimum wet power frequency withstand
kV
7.1.1.10 Creepage distance
7.1.2
Offered
mm
mm mm
mm
160
16000
Tension units
7.1.2.1
Shed profile
7.1.2.2
Appropriate IEC Number
7.1.2.3
Material
7.1.2.4
Coupling
a.
Standard
b.
Type (recommended only)
c.
Size (recommended only)
aerodynamic
IEC 61109
Silicone rubber
IEC 61120
Ball/Socket
20
7.1.2.5
Minimum failing load
7.1.2.6
Outside diameter:
7.1.2.7
Mass of unit
kg
7.1.2.8
Minimum dry lightning impulse withstand
kV
7.1.2.9
Minimum wet power frequency withstand
kV
Section VI – Requirements
Environmental Guidelines for Contractors
kN
160
Page 208 of 677
O. 400kV OVERHEAD LINE - Line conductor: 4 x Lark
7.1.2.10 Creepage distance
UNIT
mm
DATA
Required
16000
7.2.1
7.2.1.1
7.2.1.2
Minimum failing load, complete set
kN
120 /2*120
7.2.1.3
Overall length of set including clamps and all fittings
mm
≤ 5150
7.2.1.4
7.2.1.5
Arcing Gap
Mass of set, complete with all fittings
mm
kg
2900
7.2.1.6
Overall length of creepage path per string:
Mm
16000
7.2.1.7
50 Hz voltage tests:
7.2
7.2.1.8
Insulator sets complete
Suspension sets
Number of insulator strings in parallel
1/2
a.
Dry withstand voltage of complete set:
kV
845
b.
One minute wet withstand voltage of complete set :
kV
680
50% Impulse withstand:
a.
1.2/50 s negative wave:
kV
1550
b.
1.2/50 s positive wave:
kV
1550
kV
290
7.2.1.10 Set RI test voltage
kV
275
7.2.1.11 Set radio noise level
dB
45
7.2.2.12 Short circuit current withstand for 1 second (any part of set)
kA
31.5
7.2.1.9
7.2.2
Offered
Corona test voltage
Tension sets
7.2.2.1
Number of insulator strings in parallel
7.2.2.2
Elastic limit load of set fittings:
2
a.
Common to each string
kN
b.
Common to conductor
kN
c.
Separate for each sub-conductor
kN
7.2.2.3
Minimum failing load, complete set
kN
7.2.2.4
Overall length of set including clamps and all fittings
mm
7.2.2.5
Arcing Gap
mm
320
2900
All flashover and withstand voltage levels corrected to normal temperature and pressure in accordance with IEC
60383
Section VI – Requirements
Environmental Guidelines for Contractors
Page 209 of 677
O. 400kV OVERHEAD LINE - Line conductor: 4 x Lark
UNIT
DATA
Required
7.2.2.6
Mass of set, complete with all fittings
7.2.2.7
Overall length of creepage path per string:
7.2.2.8
50 Hz voltage tests:
7.2.2.9
mm
16000
a.
Dry withstand voltage of complete set:
kV
845
b.
One minute wet withstand voltage of complete set:
kV
690
50% Impulse withstand:
a.
1.2/50 s negative wave:
kV
1550
b.
1.2/50 s positive wave:
kV
1550
7.2.2.10 Corona test voltage
kV
290
7.2.2.11 Set RI test voltage
kV
275
7.2.2.12 Set radio noise level
dB
45
7.2.2.13 Short circuit current withstand for 1 second (any part of set)
kA
31.5
7.3
Earth conductor sets
7.3.1
7.3.2
8
8.1
Offered
kg
Minimum failing load
a.
Suspension set
kN
b.
Tension set
kN
Short circuit current withstand for 1 second (any part of
set)
Clearances
kA
31.5
Minimum clearance between live metal and tower steelwork:a.
with suspension insulator set swing, at 65º
mm
1100
b.
with suspension insulator set swing, 0 - 10º
mm
3100
c.
with suspension insulator set swing 10 - 35º
mm
1800
m
5.0
mm
4900
8.4
Minimum clearance to steelwork on which a man may stand for
live line maintenance (crossarm floor)
8.5
Downleads – minimum clearances:
a.
phase to phase clearance in still air
All flashover and withstand voltage levels corrected to normal temperature and pressure in accordance with IEC
60383
Section VI – Requirements
Environmental Guidelines for Contractors
Page 210 of 677
O. 400kV OVERHEAD LINE - Line conductor: 4 x Lark
b.
UNIT
phase to phase clearance under conditions of maximum
(opposing) swing and sag
DATA
mm
Required
3700
8.6
Earth conductor suspension clamps, unobstructed transverse
swing angle from vertical
degrees
0 – 50
8.7
Earth conductor maximum shielding angle from vertical at tower
attachment point over outer line conductors
degrees
17
9.0
Offered
QUALITY OF TOWER MATERIALS
9
Steel members
.1
9.1.1 Grade/standard:
EN10025-2
a.
Mild steel
S235
b.
High tensile steel
S355
9.1.2 Tensile breaking stress:
a.
Mild steel
N/mm2
235
b.
High tensile steel
N/mm2
355
9.1.3 Elongation on breaking:
a.
Mild steel
%
b.
High tensile steel
%
9.1.4 Yield point as percentage of breaking stress:
a.
Mild steel
%
b.
High tensile steel
%
9
Steel nuts and bolts
.2
9.2.1 Grade/standard:
a.
Mild steel
5.6
b.
High tensile steel
8.8
9.2.2 Tensile breaking stress:
a.
Mild steel
N/mm2
b.
High tensile steel
N/mm2
9.2.3 Elongation on breaking:
a.
Mild steel
%
b.
High tensile steel
%
Section VI – Requirements
Environmental Guidelines for Contractors
Page 211 of 677
P.
220 kV OVERHEAD LINE – Line Conductor 1 x Canary
UNIT
DATA
Required
Offered
1.0 – 3.0 Not used
4.0
Line conductor and fittings
4.1
Complete line conductor:
4.1.1
Nominal area per phase
4.1.2
Number of conductors per phase
4.2
ACSR
mm2
515
No
1
Each single conductor:
4.2.1
Code name
4.2.2
International Standard
4.2.3
National standard
4.2.4
Material of conductor
4.2.5
Number and diameter of wires
Canary
IEC 61089
ASTM B 232
Aluminium/
Galvanised
Steel
No/mm
Al 54/3.28
St 7/3.28
4.2.6
Total area of conductor
Section VI – Requirements
Environmental Guidelines for Contractors
mm2
515.50
Page 212 of 677
P.
220 kV OVERHEAD LINE – Line Conductor 1 x Canary
UNIT
DATA
Required
4.2.7
20.
OVERALL DIAMETER OF
STRANDED CONDUCTOR
4.2.8
Resistance of conductor (dc) at 20˚C
4.2.9
mm
29.52
ohm/km
0.06328
Mass of conductor (without grease)
kg/km
1726
4.2.10
Total mass of greased conductor (greased to Case 2 of IEC
61089)
kg/km
4.2.11
Ultimate rated strength of conductor
Newton
142,040
4.2.12
Maximum tension of conductor in still air at “everyday”
temperature
Newton
28,408
4.2.13
Assumed equivalent modulus of elasticity of conductor
N/mm2
68,650
4.2.14
Assumed equivalent coefficient of linear expansion of
conductor
per ˚C
1.93 x 10-5
4.2.15
Maximum length of conductor on drum
km
3
˚C
120
4.3
Offered
Conductor grease:
4.3.1
Type
4.3.2
Minimum drop-point temperature
Section VI – Requirements
Environmental Guidelines for Contractors
Page 213 of 677
P.
220 kV OVERHEAD LINE – Line Conductor 1 x Canary
UNIT
DATA
Required
4.3.3
4.4
Mass of grease per kilometre of conductor (all inner layers
greased – Case 2 to IEC 61089)
Offered
kg
Vibration damping system:
4.4.1
Type of system (vibration damper)
4.4.2
VIBRATION DAMPER
type
4.4.2.1
Type of vibration damper
type
4.4.2.2
National / International standard
4.4.2.3
Number of wires in messenger cable
No
19
4.4.2.4
Conductor diameter range
mm
29.52
4.4.2.5
Mass of damper
4.4.2.6
Maximum span for:
IEC 61897
kg
a.
One vibration damper at each end of span
m
b.
Two vibration dampers at each end of span
m
c.
Three vibration dampers at each end of span
m
Section VI – Requirements
Environmental Guidelines for Contractors
Stockbridge
Page 214 of 677
P.
220 kV OVERHEAD LINE – Line Conductor 1 x Canary
UNIT
DATA
Required
4.4.2.7
P.
Offered
Dimensions from clamp mouth to vibration damper
attachment:
a.
First damper
mm
b.
Second damper when required
mm
c.
Third damper when required
mm
220 kV OVERHEAD LINE – Earth Conductor
UNIT
DATA
Required
5.0
Earth Conductor and fittings
5.1
Complete earth conductor system
5.1.1
5.2
Number of ACS earth conductors
Offered
Aluminium
Clad Steel
GW
No
1
Each single earth conductor
5.2.1
International Standard No
ASTM B416
5.2.2
Material of conductor
Aluminiumclad steel
5.2.3
Number and diameter of wires
5.2.4
No/mm
7/3.26
Total area of conductor
mm2
58.6
5.2.5
Overall diameter of conductor
mm
9.78
5.2.6
Mass of conductor
kg/km
390
5.2.7
Ultimate strength of conductor
Newton
71,000
5.2.8
Maximum tension of conductor in still air at “everyday”
temperature
Newton
5.2.9
Assumed equivalent modulus of elasticity of conductor
N/mm2
162,000
5.2.10
Assumed equivalent coefficient of linear expansion of
conductor
per C
12.96 x 10-6
5.2.11
Minimum bending radius
Section VI – Requirements
Environmental Guidelines for Contractors
mm
Page 215 of 677
P.
220 kV OVERHEAD LINE – Line Conductor 1 x Canary
UNIT
DATA
Required
5.2.12
5.3
5.3.1
Minimum length of conductor on drum
5.4.1
20SA
Vibration damping system
Maximum span for:
a.
One vibration damper at each end of span
m
b.
Two vibration dampers at each end of span
m
c.
Three vibration dampers at each end of span
m
Earth Conductor and fittings
6.1
Complete optical earth conductor system
6.2
ASTM B415
Grade of steel
6.0
6.1.1
4
Individual wires before stranding
Aluminium-clad steel
b.
5.4
km
Number of OPGW earth conductors
OPGW
No
1
Each single optical earth conductor (OPGW)
6.2.1
International Standard No
6.2.2
Material of conductor
6.2.3
Number and diameter of wires
6.2.4
Total area of conductor
mm2
6.2.5
Overall diameter of conductor
mm
6.2.6
Mass of conductor
IEE 1138
IEC 60794-4-1
Aluminium
Alloy/
Aluminiumclad steel
6.2.7
6.2.8
No/mm
kg/km
<850
Ultimate strength of conductor
Newton
≥ 93,000
Maximum tension of conductor in still air at “everyday”
temperature
Assumed equivalent modulus of elasticity of conductor
Newton
> 18,500
N/mm2
≥ 70,000
per C
≤1.98 x 10-5
6.2.11
Assumed equivalent coefficient of linear expansion of
conductor
Minimum bending radius
6.2.12
Short circuit current rating
6.2.9
6.2.10
Offered
Section VI – Requirements
Environmental Guidelines for Contractors
mm
kA2s
496
Page 216 of 677
P.
220 kV OVERHEAD LINE – Line Conductor 1 x Canary
UNIT
DATA
Required
6.2.13
6.3
6.3.1
6.3.2
6.4
6.4.1
Minimum length of conductor on drum
km
4
%IACS
IEC 60104
52.5
Offered
Individual wires before stranding
Aluminium alloy Standard
Minimum conductivity at 20ºC
Aluminium-clad steel Standard
Grade of Steel
Vibration damping system
IEC 60232
20SA
Maximum span for:
d.
One vibration damper at each end of span
m
e.
Two vibration dampers at each end of span
m
f.
Three vibration dampers at each end of span
m
7.0
FIBRE OPTIC TRANSMISSION SYSTEM
7.1
Fibre optic data
7.1.1
Type
7.1.2
Wavelength
7.1.3
Number of fibres
7.1.4
Transmission attenuation:
c.
at 1550 nm
d.
at 1625 nm
7.1.5
Transmission bandwidth
7.1.6
Fibre identification
7.1.7
Chromatic dispersion
nm
48
dB/k
m
dB/k
m
MHz/
km
colou
r code
at 1550 nm
d.
at 1625 nm
7.1.8
Splicing loss
ps/n
m.km
ps/n
m.km
dB
7.1.9
Polarisation Mode Dispersion (PMD)
7.1.10
Minimum bending radius
< 0.22
< 0.24
> 10 000
c.
Section VI – Requirements
Environmental Guidelines for Contractors
Non-Zero
DispersionShifted SingleMode acc. to
ITU G.655.
1550/1625
ps/√k
m
mm
<2
< 12.4
< 0.1
< 20
Page 217 of 677
P.
220 kV OVERHEAD LINE – Line Conductor 1 x Canary
UNIT
DATA
Required
8.0
Insulator and fittings
8.1
Insulator units: Long Rod
8.1.1
Suspension units
8.1.1.1
Shed profile
8.1.1.2
Appropriate IEC Number
8.1.1.3
Material
8.1.1.4
Coupling
d.
Standard
e.
Type (recommended only)
f.
Size (recommended only)
aerodynamic
IEC 61109
Silicone rubber
IEC 61120
Ball/Socket
16
8.1.1.5
Minimum failing load
kN
8.1.1.6
Outside diameter:
mm
8.1.1.7
Mass of unit
kg
8.1.1.8
Minimum dry lightning impulse withstand
kV
8.1.1.9
Minimum wet power frequency withstand
kV
8.1.1.10 Creepage distance
8.1.2
Offered
mm
70
9300
Tension units
8.1.2.1
Shed profile
8.1.2.2
Appropriate IEC Number
8.1.2.3
Material
Section VI – Requirements
Environmental Guidelines for Contractors
aerodynamic
IEC 61109
Silicone rubber
Page 218 of 677
P.
220 kV OVERHEAD LINE – Line Conductor 1 x Canary
UNIT
DATA
Required
8.1.2.4
Coupling
d.
Standard
e.
Type (recommended only)
f.
Size (recommended only)
IEC 61120
Ball/Socket
16
8.1.2.5
Minimum failing load
kN
8.1.2.6
Outside diameter:
8.1.2.7
Mass of unit
kg
8.1.2.8
Minimum dry lightning impulse withstand
kV
8.1.2.9
Minimum wet power frequency withstand
kV
8.1.2.10 Creepage distance
mm
120
9300
8.2.1
8.2.1.1
8.2.1.2
Minimum failing load, complete set
kN
70 /2*70
8.2.1.3
Overall length of set including clamps and all fittings
mm
≤ 3100
8.2.1.4
8.2.1.5
Arcing Gap
Mass of set, complete with all fittings
mm
kg
2100
8.2.1.6
Overall length of creepage path per string:
Mm
9300
8.2.1.7
50 Hz voltage tests:
8.2
8.2.1.8
Insulator sets complete
Suspension sets
Number of insulator strings in parallel
1/2
c.
Dry withstand voltage of complete set:
kV
715
d.
One minute wet withstand voltage of complete set :
kV
540
50% Impulse withstand:
c.
1.2/50 s negative wave:
kV
1150
d.
1.2/50 s positive wave:
kV
1150
kV
245
8.2.1.10 Set RI test voltage
kV
220
8.2.1.11 Set radio noise level
dB
45
8.2.1.12 Short circuit current withstand for 1 second (any part of set)
kA
31.5
8.2.1.9
Offered
Corona test voltage
All flashover and withstand voltage levels corrected to normal temperature and pressure in accordance with IEC
60383
Section VI – Requirements
Environmental Guidelines for Contractors
Page 219 of 677
P.
220 kV OVERHEAD LINE – Line Conductor 1 x Canary
UNIT
DATA
Required
8.2.2
Tension sets
8.2.2.1
8.2.2.2
Minimum failing load, complete set
kN
8.2.2.3
Overall length of set including clamps and all fittings
mm
8.2.2.4
Arcing Gap
mm
8.2.2.5
Mass of set, complete with all fittings
8.2.2.6
Overall length of creepage path per string:
8.2.2.7
50 Hz voltage tests:
8.2.2.8
Number of insulator strings in parallel
1/2
120/2*120
2100
kg
mm
9300
c.
Dry withstand voltage of complete set:
kV
715
d.
One minute wet withstand voltage of complete set:
kV
540
50% Impulse withstand:
c.
1.2/50 s negative wave:
kV
1150
d.
1.2/50 s positive wave:
kV
1150
kV
245
8.2.2.10 Set RI test voltage
kV
220
8.2.2.11 Set radio noise level
dB
45
8.2.2.12 Short circuit current withstand for 1 second (any part of set)
kA
31.5
8.2.2.9
8.3
8.3.1
8.3.2
Offered
Corona test voltage
Earth conductor sets
Minimum failing load
c.
Suspension set
kN
d.
Tension set
kN
Short circuit current withstand for 1 second (any part of
set)
kA
31.5
All flashover and withstand voltage levels corrected to normal temperature and pressure in accordance with IEC
60383
Section VI – Requirements
Environmental Guidelines for Contractors
Page 220 of 677
P.
220 kV OVERHEAD LINE – Line Conductor 1 x Canary
UNIT
DATA
Required
9.1 – 9.2
9.3
Not used
Minimum clearance between live metal and tower steelwork:a.
with suspension insulator set swing, at 65º
mm
500
b.
with suspension insulator set swing, 0 - 10º
mm
2150
c.
with suspension insulator set swing 10 - 35º
mm
1500
m
3.9
9.4
Minimum Clearance to steelwork on which a man may stand
for live line maintenance (crossarm floor)
9.5
Downleads – minimum clearances:
c.
phase to phase clearance in still air
mm
3500
d.
phase to phase clearance under conditions of
maximum (opposing) swing and sag
mm
2650
9.6
Earth conductor suspension clamps, unobstructed transverse
swing angle from vertical
degrees
0 – 50
9.7
Earth conductor maximum shielding angle from vertical at
tower attachment point over outer line conductors
degrees
3
10.0-13.0
14.0
Not used
QUALITY OF TOWER MATERIALS
14.1
Steel members
14.1.1
Grade/standard:
14.1.2
14.1.3
EN10025-2
a.
Mild steel
S235
b.
High tensile steel
S355
Tensile breaking stress:
a.
Mild steel
N/mm2
235
b.
High tensile steel
N/mm2
355
Elongation on breaking:
a.
14.1.4
Offered
Mild steel
%
Yield point as percentage of breaking stress:
a.
Mild steel
%
b.
High tensile steel
%
Section VI – Requirements
Environmental Guidelines for Contractors
Page 221 of 677
P.
220 kV OVERHEAD LINE – Line Conductor 1 x Canary
UNIT
DATA
Required
Offered
14.2
Steel nuts and bolts
14.2.1
Grade/standard:
14.2.2
14.2.3
a.
Mild steel
5.6
b.
High tensile steel
8.8
Tensile breaking stress:
a.
Mild steel
N/mm2
b.
High tensile steel
N/mm2
Elongation on breaking:
a.
Mild steel
%
b.
High tensile steel
%
Section VI – Requirements
Environmental Guidelines for Contractors
Page 222 of 677
