V03344
Init close CB2
1
CB Control by
Opto+Local
Opto
Opto+Remote
Opto+Rem+Local
HMI Trip
HMI Close
Init Trip CB2
CB2 ARIP
Auto Close CB2
CB2 Close Fail
Control CloseCB2
CB2 Close inProg
CB2 Trip Fail
Control TripCB2
Rst CB2 CloseDly
1
1
CB2 Ext Trip3ph
Control TripCB2
Any Trip
CB2 Open 3 ph
CB2 Closed 3 ph
CB2 Healthy
ManCB2 Unhealthy
NoCS CB2ManClose
CB2 Man SCOK
CB2 Ext Trip A
CB2 Ext Trip B
CB2 Ext Trip C
CB2 Open A ph
CB2 Open B ph
CB2 Open C ph
CB2 Closed A ph
CB2 Closed B ph
CB2 Closed C ph
&
1
1
&
&
1
&
RD
Q
S
0
t
&
1
&
RD
Q
S
0
t
&
1
RD
Q
S
0
t
&
1
1
1
1
0
t
0
t
&
&
Trip Pulse Time
Close Pulse TimeMan Close Delay
CB Healthy Time
Check Sync Time
Note: If the DDB signal CB1 Healthy, or CB2 healthy is not mapped in PSL , it defaults to
High.
441
442
1435
1448
1419
522
840
538
539
540
541
911
912
913
914
915
916
917
918
437
1458
840
324
1453
841
325
326
327
Figure 182: CB2 Control Logic (Module 44)
5.18
CIRCUIT BREAKER TRIP TIME MONITORING
The circuit breaker trip time monitoring logic checks for correct circuit breaker tripping following the issue of a
protection trip signal. When the protection trip signal is issued, a timer controlled by the Trip Pulse Time setting in
the CB CONTROL column is started.
If the circuit breaker trips correctly the timer resets. If Autoreclose is enabled and the timer resets, the cycle
continues. If the circuit breaker fails to trip correctly within the set time, the Autoreclose cycle is forced to lock out
and a signal is issued indicating that the circuit breaker failed to trip in response to the protection operation.
P446SV Chapter 11 - Autoreclose
P446SV-TM-EN-1 323
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