GE MiCOM P40 Agile - Circuit Breaker Fail Logic - Part 3

4.3 CIRCUIT BREAKER FAIL LOGIC - PART 3
V00731
External Trip 3Ph
R
D
Q
S
Pole Dead C
1
&
1
&
IA<FastUndercurrent
0
1
2
3
4
Ext Prot Reset
I< Only
Prot Reset OR I<
Prot Reset & I<
CB Open & I<
Rst OR CBOp & I<
&
&
0
0
1
2
3
4
Latch3PhTripResetIncomp
IB<FastUndercurrent
IC<FastUndercurrent
1
All Poles Dead
Pole Dead A
Pole Dead B
&
1
&
R
D
Q
S
0
1
2
Ext Prot Reset
I< Only
Prot Reset OR I<
Prot Reset & I<
CB Open & I<
Rst OR CBOp & I<
&
&
&
ExtTrip Only Ini
Enabled
CBF Non I Trip
Pole Dead C
All Poles Dead
Pole Dead A
Pole Dead B &
1
IC<FastUndercurrent
IA<FastUndercurrent
IB<FastUndercurrent &
0
1
2
&
&
LatchNonITripResetIncomp
1
WIINFEEDA
TripStateExtA TripStateA
ExtTrip Only Ini
Enabled
AnyTripPhaseA
IA<FastUndercurrent
&
R
D
Q
S
Logic 0
Figure 210: Circuit Breaker Fail logic - part 3
P543i/P545i Chapter 12 - CB Fail Protection
P54x1i-TM-EN-1 359