GE 350-A9

6–84 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
S3 PROTECTION CHAPTER 6: SETPOINTS
Figure 6-37: Auxiliary Undervoltage logic diagram
Auxiliary Voltage Input (Associated setpoints)
SETPOINTS
SETPOINT
AUX UV FUNCTION: Disabled = 0
Latched Alarm
AUX UV PICKUP: AUX UV CURVE: AUX UV DELAY:
AND
Operate Output Relay 1 (TRIP)
Event Recorder
LED: TRIP
Alarm
OR
OR
AND
SETPOINTS
Do Not Operate, Operate
OUTPUT RELAY X
Trip
AND
Trip (To Breaker Failure)
SETPOINTS
BLOCK 1: Off = 0 BLOCK 2: Off = 0 BLOCK 3: Off = 0
OR
RUN
PICKUP
Aux V > Minimum
AUX MIN VOLTAGE:
SETPOINT
AND
LED: PICKUP
Aux. UV Trip (Alarm) OP, PKP, DPO
Message
LED: ALARM
RESET
Command
AND
S R
LATCH
898012A2.cdr
Aux V