GE Multilin 345 - Page 180

6–64 345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
S3 PROTECTION CHAPTER 6: SETPOINTS
SETPOINT
RUN
SETPOINT
PH IOC FUNCTION: Disabled = 0
Latched Alarm
PH IOC PICKUP:
PH IOC PKP DELAY:
AND
RUN RUN
Message and Event Recorder
LED: PICKUP
Alarm
OR
OR
AND
SETPOINT
Do Not Operate, Operate
OUTPUT RELAY X
Trip
AND
SETPOINT
BLOCK 1: Off = 0 BLOCK 2: Off = 0 BLOCK 3: Off = 0
OR
Message and Event Recorder
IB > PICKUP IA > PICKUP
IC > PICKUP
SETPOINT
PH IOC A PKP
PHASE IOC PKP
t
PKP
0
t
PKP
0
t
PKP
0
OR
OR
LED: ALARM
RESET
Command
AND
S R
LATCH
PH IOC B PKP
PH IOC C PKP
PH IOC A OP
PHASE IOC OP
PH IOC B OP
PH IOC C OP
LED: TRIP
SETPOINTS
(configurable only if “TRIP”
function selected)
Operate trip output relays upon selection
RLY 2 TRIP W2 BKR RLY 1 TRIP W1 BKR
To Breaker Failure
Trip
Phase A current (IA) Phase B current (IB) Phase C current (IC)
CT(W1), CT(W2) phase
currents selected under
PH TOC INPUT setpoint
PH IOC INPUT:
897809A1.cdr