GE 850 - Page 7

850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL V
Underfrequency (81U)........................................................................................................................6 - 138
Overfrequency (81O)...........................................................................................................................6 - 141
Frequency Rate of Change (81R) ..................................................................................................6 - 144
Fast Underfrequency..........................................................................................................................6 - 148
7.MONITORING Trip and Close Circuit Monitoring ............................................................................................. 7 - 2
Breaker Arcing Current................................................................................................................7 - 10
Breaker Health ................................................................................................................................7 - 13
Functions............................................................................................................................................7 - 17
Power Factor (55).................................................................................................................................... 7 - 17
Demand ...................................................................................................................................................... 7 - 23
Current Demand......................................................................................................................................7 - 24
Real Power Demand..............................................................................................................................7 - 26
Reactive Power ........................................................................................................................................7 - 28
Apparent Power Demand ...................................................................................................................7 - 30
Pulsed Outputs ........................................................................................................................................ 7 - 32
Digital Counters....................................................................................................................................... 7 - 35
Harmonic Detection......................................................................................................................7 - 38
Transient Ground Fault Detection..........................................................................................7 - 41
RTD Temperature...........................................................................................................................7 - 45
RTD Trouble.......................................................................................................................................7 - 50
Loss of Communications............................................................................................................7 - 51
8.CONTROL Setpoint Group .................................................................................................................................. 8 - 2
Local Control Mode (breakers and switches)...................................................................... 8 - 4
Breaker Control (2).........................................................................................................................8 - 13
Switch Control (9) ...........................................................................................................................8 - 16
Pole Discordance (52)...................................................................................................................8 - 19
Virtual Input Control......................................................................................................................8 - 25
Trip Bus ...............................................................................................................................................8 - 26
Breaker Failure (50BF)..................................................................................................................8 - 28
Setup ............................................................................................................................................................ 8 - 29
Initiate.......................................................................................................................................................... 8 - 32
Arc Flash Protection......................................................................................................................8 - 34
Synchrocheck (25) .........................................................................................................................8 - 36
Manual Close Blocking.................................................................................................................8 - 41
Cold Load Pickup............................................................................................................................8 - 44
Undervoltage Restoration..........................................................................................................8 - 48
Underfrequency Restoration....................................................................................................8 - 52
Bus Transfer......................................................................................................................................8 - 56
ATS Wiring Diagrams............................................................................................................................ 8 - 75
Autoreclose.......................................................................................................................................8 - 79
Setup ............................................................................................................................................................ 8 - 81
Initiate.......................................................................................................................................................... 8 - 87
Shot............................................................................................................................................................... 8 - 88
Rate Supervision ..................................................................................................................................... 8 - 90
Current Supervision............................................................................................................................... 8 - 92
Zone Coordination ................................................................................................................................. 8 - 95
CT Supervision.................................................................................................................................8 - 98
VT Fuse Failure (VTFF)................................................................................................................8 - 105