GE 869 - Page 285

CHAPTER 4: SETPOINTS PROTECTION
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–153
Figure 4-53: Loss of Excitation Logic Diagrams: (a) circle 1
894172A1.cdr
CIRCLE 1 DIAMETER
CIRCLE 1 OFFSET
SETTING
SETTING
Enabled=1
Disabled=0
FLEXLOGIC OPERANDS
FLEXLOGIC OPERAND
LOE Circle 1 PKP
LOE Circle 1 OP
0
I1 > 0.05 x CT
RUN
COMPARATOR
CIRCLE 1 UV
SUPERVISION
TIMER
20 ms
0
SETPOINTS
CIRCLE 1 FUNCTION: Disabled = 0
Trip
Operate Output Relay 1 (TRIP)
Alarm
OR
OR
AND
Latched Alarm
AND
BLOCK Off = 0
LED: ALARM
RESET
Command
AND
S R
LATCH
Configurable
LED: TRIP
Set Dominant
SETPOINTS
AND
OR
IV1| > PKP
RUN
SETTING
AND
SETTING
RUN
tpkp
CIRCLE 1 DELAY
CIRCLE 1
UV SUPERVISION
SETPOINTS
I1
V1
SIGNAL INPUT