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Bus Bar 2
ES (1GD)
DS (2G) DS (1G)
ES(3GD-1)ES (3GD-2) DS (3G)
Bus Bar 1
CB(11DL)
3 PHASE SURGE
ARRESTER
3 PHASE PTs
CT
CT
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1 Oil pump motor - charging overtime alarm
2 Oil pump motor starting signal of CB
3 Low Gas pressure of CB
4 Low Gas pressure of Compartment 2~8
5 Low Gas Pressure Lockout
6 Closing Low Oil pressure lock out
7 Main Opening Low Oil pressure lock out
8 Auxiliary Opening low oil pressure lock out
1. CB Motor
2. Auxiliary Circuit
3. Moisture Dispelling & Heating Circuit
4. DS/ES Mechanism Moisture DispellingCircuit
5. DS Motor
6. ES Motor
7. DS Control
8. ES Control
1 CB Motor
2 Auxiliary Switch
3 DS Motor
4 ES Motor
5 DS Control
6 ES Control
7 Moisture Dispelling & Heating
8 ES/DS Moisture Dispelling & Heating
1 Motor Counting of Pole R
2 Motor Counting of Pole S
3 Motor Counting of Pole T
4 Oil Pump Motor Starting Count of R5 Oil Pump Motor Starting Count of S
6 Oil Pump Motor Starting Count of T
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1
Mechanism interface to the
high voltage circuit breaker with
position indicator
2Auxiliary Switch Assembly for
signaling of the switching State
3
Control Module with Individual
adjustable switching speed &
reaction time
4Spring limit switch to monitor
the charging level
5 Disc spring column
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TECHNICAL PARAMETERS : EARTH SWITCH
Rated Voltage: 252KV
Rated Current: 3150A
Rated Short Circuit Withstand Current: 50KA
Rated Short Circuit Duration: 2~3sElectrostatically induced Switching Current:
10A/15KV
Electromagnetically induced Switching
Current: 160A, 15KV
Opening time:
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TECHNICAL PARAMETERS : DISCONNECTOR
Rated Voltage: 252KV
Rated Current: 3150A
Rated Short Circuit Withstand Current: 50KA
Rated Short Circuit Duration: 3s
Opening time:
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CB Chamber
Rated 6
Alarm 5.2
Min Pressure 5
All Other Chambers
Rated 5
Min Pressure 4.4
Unit of Pressure : Bar
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CB Chamber
Rated 6Alarm 5.2
Min
Pressure 5
All Other
Chambers
Rated 5
Min
Pressure 4.4
Unit of Pressure : Bar
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GT STG
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NAME: GT-1/2/3 & STG RED670
1 DIFFERENTIAL TRIP
2 TRIP LINE 1
3 TRIP LINE 2
4 TRIP LINE 3
5 BREAKER FAILURE TRIP
6 BREAKER FLASHOVER
7 COMMUNICATION FAILURE
8 Id ALARM
9 CT OPEN ALARM
10 RECEIVE TRIP OF 220KV CB
11 RECEIVE TRIP BUS COUPLER
12 RECEIVE PANC TRIP 220KV CB
13 RECEIVE GEEPE TRIP 220KV CB
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GT-1,2&3
CT KKS RATIO ACCURACY VA(Burden)
Primary Sec
CT1 11LH 600-1200 1 0.2S 20
CT2 12LH 600-1200 1 5P40 20
CT3 13LH 600-1200 1 5P40 20
CT4 14LH 600-1200 1 5P40 20
CT5 15LH 600-1200 1 5P40 20
CT6 16LH 600-1200 1 5P40 20
CT7 17LH 600-1200 1 5P40 20
CT8 18LH 600-1200 1 0.2S 20
STG
CT KKS RATIO ACCURACY VA(Burden)
Primary Sec
CT1 11LH 900-1800 1 0.2S 20
CT2 12LH 900-1800 1 5P40 20
CT3 13LH 900-1800 1 5P40 20
CT4 14LH 900-1800 1 5P40 20
CT5 15LH 900-1800 1 5P40 20
CT6 16LH 900-1800 1 5P40 20
CT7 17LH 900-1800 1 5P40 20
CT8 18LH 900-1800 1 0.2S 20
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Bus Bar 2
ES (1GD)
DS (2G) DS(1G)
CB(11DL)
ES(3GD-1ES (3GD-2) DS (3G)
Bus Bar 1
3 PHASE S.A
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NAME: KCR-1/2 REL670
1 DISTANCE- TRIP
2 CARRIER- TRIP
3 TEF -TRIP
4 TOC -TRIP
5 TRIP LOCK OUT- B
6 SOFT -TRIP
7 COMMUNICATION- FAULT
8 ZCOM-CRL
9 ZCOM- CS
10 DISTANCE -START
11 PSD -SATART
12 TEFSTART
13 RE-CLOSE- OPERATE
14 SUPERVISION- ALARM
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KCR-1&2
CT KKS RATIO ACCURACY
VA(Burden
)
Primary Sec
CT1 11LH 1500-3000 1 0.2S 30
CT2 12LH 1200-2400 1 5P20 30
CT3 13LH 1200-2400 1 5P20 30
CT4 14LH 1200-2400 1 5P20 30
CT5 15LH 1200-2400 1 5P20 30
CT6 16LH 1200-2400 1 5P20 30
CT7 17LH 1200-2400 1 5P20 30
CT8 18LH 1500-3000 1 0.2S 30
ONE PHASE PT 7YH
RATIO ACCURACY VA(Burden)
Primary Sec220/1.732 0.11/1.732 0.2(3P) 150
220/1.732 0.11/1.732 0.2 150
220/1.732 0.11/1.732 3P 200
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NAME: SHT-LINE-1/2
REB670
1 Diff-protection trip
2 Trip A
3 Trip B
4 Trip C
5 TOC1- Trip
6 OCT-alarm
7 ID>-Alarm
8 Lin>-alarm
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SHORT LINES 1&2
CT KKS RATIO ACCURACY VA(Burden)
Primary Sec
CT1 11LH 1500-3000 1 0.2S 30
CT2 12LH 1200-2400 1 5P20 30
CT3 13LH 1200-2400 1 5P20 30
CT4 14LH 1200-2400 1 5P20 30
CT5 15LH 1200-2400 1 5P20 30
CT6 16LH 1200-2400 1 5P20 30
CT7 17LH 1200-2400 1 5P20 30
CT8 18LH 1500-3000 1 0.2S 30
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THREE PHASE PT IYH/IIYH
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RATIO ACCURACY VA(Burden)
Primary Sec
220/1.732 0.11/1.732 0.2(3P) 150
220/1.732 0.11/1.732 0.2 100
220/1.732 0.11/1.732 3P 150
220/1.732 0.11 3P 200
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NAME: BUSBAR REB670
1 ZA-TRIP
2 ZA-BFP
3 ZA-EXT-TRIP
4 ZB-TRIP
5 ZB-BFP
6 ZB-EXT-TRIP
7 ZA-OCT-ALARM8 ZA-Id>-ALARM
9 ZALINE>-ALARM
10 ZB-OCT-ALARM
11 ZB-Id>-ALARM
12 ZB-Lin>-ALARM
13 SWITCH-ALARM
14 ZA-BLOCKED
15 ZB-BLOCKED
BUS COUPLER
CT KKS RATIO ACCURACY VA(Burden)
Primary Sec
CT1 11LH 1200-2400 1 0.2S 20
CT2 12LH 1200-2400 1 5P40 20
CT3 13LH 1200-2400 1 5P40 20
CT4 14LH 1200-2400 1 5P40 20
CT5 15LH 1200-2400 1 5P40 20
CT6 16LH 1200-2400 1 5P40 20
CT7 17LH 1200-2400 1 5P40 20
CT8 18LH 1200-2400 1 0.2S 20
THREE PHASE PT IYH/IIYH
RATIO ACCURACY VA(Burden)
Primary Sec
220/1.732 0.11/1.732 0.2(3P) 150
220/1.732 0.11/1.732 0.2 100
220/1.732 0.11/1.732 3P 150
220/1.732 0.11 3P 200
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NO
YESNOT
OK
NO
YES
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HIGH
LOW
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LOW
HIGH
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PASS
FAIL
FAIL
PASS
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X
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GT
X
X
X
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X
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X
X
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X
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X
X
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X
X
X
GT
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X
X
X
GT
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X
X
X
GT
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X
X
X
GT
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X
X
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X
X
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X
X
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X
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X
X
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X
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X
X
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X
X
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X
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X
X
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X
X
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X
X
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X
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X
X
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X
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X
X
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X
X
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X
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X
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X
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X
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X
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X
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X
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X
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X
X
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X
X
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