Circuit Breaker Fail Logic; Circuit Breaker Fail Logic - Part; Figure 96: Circuit Breaker Fail Logic - Part - GE P4A Technical Manual

P54A/B/C/E
4

CIRCUIT BREAKER FAIL LOGIC

4.1

CIRCUIT BREAKER FAIL LOGIC - PART 1

WI Prot Reset
Enabled
ExtTrip Only Ini
Enabled
Aid1 WI Trip 3Ph
Aid2 WI Trip 3Ph
Aid 1 WI Trip A
Aid 2 WI Trip A
Aid 1 WI Trip B
Aid 2 WI Trip B
Aid 1 WI Trip C
Aid 2 WI Trip C
ExtTrip Only Ini
Enabled
CurrentProtSEFTrip
ISEF<FastUndercurrent
ZCD function
V00729
Figure 93: Circuit Breaker Fail logic - part 1
P54xMED-TM-EN-1
642
&
1
652
637
&
1
647
638
&
1
648
639
&
1
649
&
&
1
&
1
&
1
&
Note: This part is not relevant for non -distance models
S
Q
R
D
Chapter 8 - CB Fail Protection
WIINFEEDA
WIINFEEDB
WIINFEEDC
TripStateSEF
ZCDStateA
ZCDStateB
ZCDStateC
ZCDStateSEF
187