GE 350-A9

7–8 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
M3 BREAKER MAINTENANCE CHAPTER 7: MAINTENANCE
Figure 7-8: Close coil monitoring logic diagram
SETPOINT
CLOSE COIL FUNCTN: Disabled = 0
Latched Alarm
Event Recorder
Transient Recorder
Alarm
OR
OR
AND
SETPOINT:
Do Not Operate, Operate
OUTPUT RELAY X
Close Coil Montr OP
Message
Close Coil current above
threshold
AND
OR
52a/b INPUTS
Breaker Open
Close
From output relay 2 CLOSE
SETPOINT
BYPASS BKR STATE Enabled = 1
Disable = 0
AND
CLOSE COIL DELAY:
SETPOINT
t
PKP
LED:
MAINTENANCE
Close Coil Montr PKP
Message
LED: ALARM
RESET
Command
AND
S R
LATCH
898021A1.cdr