GE SR345 Instruction Manual page 5

7. MAINTENANCE
345 TRANSFORMER PROTECTION SYSTEM - INSTRUCTION MANUAL
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Clock ...........................................................................................................................................6 - 6
Password security................................................................................................................6 - 7
Passwords ..............................................................................................................................6 - 9
Communications ..................................................................................................................6 - 10
RS485 interface ...................................................................................................................6 - 11
Ethernet...................................................................................................................................6 - 11
Modbus....................................................................................................................................6 - 12
IEC 60870-5-103 serial communication ..................................................................6 - 13
IEC60870-5-104 protocol................................................................................................6 - 27
DNP communication .........................................................................................................6 - 28
IEC 61850 GOOSE communications...........................................................................6 - 42
Event recorder .......................................................................................................................6 - 43
Transient recorder ...............................................................................................................6 - 44
Front panel ..............................................................................................................................6 - 45
Installation ...............................................................................................................................6 - 46
S2 System Setup............................................................................................................. 6 - 47
Current sensing .....................................................................................................................6 - 47
Power system.........................................................................................................................6 - 48
Transformer ............................................................................................................................6 - 49
Transformer setup phase & magnitude compensations ..................................6 - 50
Winding breakers .................................................................................................................6 - 61
S3 Protection.................................................................................................................... 6 - 64
Setpoint group 1(2) ..............................................................................................................6 - 65
Transformer percent differential .................................................................................6 - 67
Transformer instantaneous differential ...................................................................6 - 73
Restricted ground fault ....................................................................................................6 - 75
Transformer thermal protection..................................................................................6 - 80
Phase timed overcurrent protection .........................................................................6 - 83
Phase instantaneous overcurrent protection .......................................................6 - 90
Ground timed overcurrent protection ......................................................................6 - 93
Ground instantaneous overcurrent protection ....................................................6 - 97
Neutral timed overcurrent protection.......................................................................6 - 100
Neutral instantaneous overcurrent protection ....................................................6 - 103
Negative sequence timed overcurrent protection..............................................6 - 106
S4 Controls ........................................................................................................................ 6 - 109
Change setpoint group......................................................................................................6 - 109
Virtual inputs...........................................................................................................................6 - 111
Logic elements.......................................................................................................................6 - 112
Winding breaker failure.....................................................................................................6 - 126
S5 Inputs/Outputs.......................................................................................................... 6 - 129
Contact inputs .......................................................................................................................6 - 129
Output relays..........................................................................................................................6 - 130
Output Relay 1 - W1 breaker "Trip" ............................................................................6 - 131
Output Relay 2 - W2 breaker "Trip" ............................................................................6 - 131
Auxiliary Output Relays 3 to 6.......................................................................................6 - 134
Virtual inputs...........................................................................................................................6 - 134
Remote inputs........................................................................................................................6 - 136
Remote outputs.....................................................................................................................6 - 136
M1 Relay information................................................................................................... 7 - 3
M3 Breaker maintenance........................................................................................... 7 - 5
W1 (W2) Breaker trip coil ..................................................................................................7 - 5
M4 Breaker monitor ...................................................................................................... 7 - 9
M5 Relay maintenance................................................................................................ 7 - 10
Ambient temperature.........................................................................................................7 - 10