GE P4A Technical Manual page 804

Appendix B - Settings and Signals
ORDINAL
414 V<1 Timer Block
Block phase undervoltage stage 1 time delayed trip
415 V<2 Timer Block
Block phase undervoltage stage 2 time delayed trip
416 V>1 Timer Block
Block phase overvoltage stage 1 time delayed trip
417 V>2 Timer Block
Block phase overvoltage stage 2 time delayed trip
418 VN>1 Timer Blk
Block residual overvoltage stage 1 time delayed trip
419 VN>2 Timer Blk
Block residual overvoltage stage 2 time delayed trip
420 CB Aux 3ph(52-A)
52-A (CB closed) CB auxiliary input (3 phase)
421 CB Aux A(52-A)
52-A (CB A phase closed) CB auxiliary
422 CB Aux B(52-A)
52-A (CB B phase closed) CB auxiliary
423 CB Aux C(52-A)
52-A (CB C phase closed) CB auxiliary
424 CB Aux 3ph(52-B)
52-B (CB open) CB auxiliary input (3 phase)
425 CB Aux A(52-B)
52-B (CB A phase open) CB auxiliary input
426 CB Aux B(52-B)
52-B (CB B phase open) CB auxiliary input
427 CB Aux C(52-B)
52-B (CB C phase open) CB auxiliary input
436 CB Healthy
Circuit breaker healthy (input to auto-recloser - that the CB has enough energy to allow re-closing)
438 MCB/VTS
VT supervision input - signal from external miniature circuit breaker showing MCB tripped
439 Init Trip CB
Initiate tripping of circuit breaker from a manual command
440 Init Close CB
Initiate closing of circuit breaker from a manual command
443 Reset Close Dly
Reset Manual CB Close Timer Delay (stop & reset Manual Close Delay time for closing CB).
444 Reset Relays/LED
Reset latched relays & LEDs
445 Reset Thermal
Reset thermal state to 0%
446 Reset Lockout
Manual control to reset auto-recloser from lockout
447 Reset CB Data
Reset CB Maintenance values
448 Block CB AR
DDB mapped in PSL from opto or comms input. External signal to force CB autoreclose to lockout.
451 Pole Discrepancy
Pole discrepancy (from external detector) - input used to force a 3 pole trip on CB.
452 Loopback Mode
To enable loopback mode via opto input
453 Perm Intertrip
Permissive intertrip mapping what will be sent to the remote line end
454 Stub Bus Enabled
To enable stub bus protection, requires setting to enable feature.
455 Inhibit C Diff
When linked to an opto input, inhibits differential relay at the local end and send an inhibit command to the remote end
B238
SIGNAL NAME
DDB_PUV_1_TIMER_BLOCK
DDB_PUV_2_TIMER_BLOCK
DDB_POV_1_TIMER_BLOCK
DDB_POV_2_TIMER_BLOCK
DDB_RESOV_1_TIMER_BLOCK
DDB_RESOV_2_TIMER_BLOCK
DDB_CB_THREE_PHASE_52A
DDB_CB_PHASE_A_52A
DDB_CB_PHASE_B_52A
DDB_CB_PHASE_C_52A
DDB_CB_THREE_PHASE_52B
DDB_CB_PHASE_A_52B
DDB_CB_PHASE_B_52B
DDB_CB_PHASE_C_52B
DDB_CB_HEALTHY
DDB_VTS_MCB_OPTO
DDB_LOGIC_INPUT_TRIP
DDB_LOGIC_INPUT_CLOSE
DDB_RESET_CB_CLOSE_DELAY
DDB_RESET_RELAYS_LEDS
DDB_RESET_THERMAL
DDB_RESET_LOCKOUT
DDB_RESET_ALL_VALUES
DDB_BLOCK_AR
DDB_INP_TR2P
DDB_INTERNAL_LOOPBACK
DDB_PERMISSIVE_INTERTRIP_OPTO
DDB_STUB_BUS_ENABLED
DDB_INHIBIT_CURRENT_DIFF_OPTO
ELEMENT NAME
DESCRIPTION
P54A/B/C/E
P54xMED-TM-EN-1