GE MiCOM P40

Autoclose signal. If the circuit breaker synchronism-check OK signal stays low, then when the Autoreclose check
synchronism timer expires, an alarm is set to inform that the check synchronism is not satisfied and cancels the
Autoreclose cycle.
5.15.1 CB HEALTHY AND SYSTEM CHECK TIMERS LOGIC DIAGRAM
V03364
RD
Q
S
1
&
0
t
OK Time 3P
CB1L3PAR
CB1 Fast SCOK
CB1L SCOK
CB1SPDTComp
CB1SPFTComp
CB13PDTComp
CB13PFTComp
1
1
AR CB1 Unhealthy
CB Healthy Time
CB1 AR Lockout
CB1 Closed 3 Ph
1
CB1 Healthy
CB13PDTComp
CB1 Closed 3 Ph
CB1 AR Lockout
1
RD
Q
S
0
t
1 AR CB1 No C/S
1
CB1F SCOK
CB13PFTComp
CB1 Closed 3 Ph
CB1 AR Lockout
1
RD
Q
S
Check Sync Time
RD
Q
S
1
&
0
t
OK Time 3P
CB2L3PAR
CB2 Fast SCOK
CB2L SCOK
CB2SPDTComp
CB2SPFTComp
CB23PDTComp
CB23PFTComp
1
1
AR CB2 Unhealthy
CB Healthy Time
CB2 AR Lockout
CB2 Closed 3 Ph
1
CB2 Healthy
CB23PDTComp
CB2 Closed 3 Ph
CB2 AR Lockout
1
RD
Q
S
0
t
1 AR CB2 No C/S
1
CB2F SCOK
CB23PFTComp
CB2 Closed 3 Ph
CB2 AR Lockout
1
RD
Q
S
Check Sync Time
Note: If the DDB signal CB2 Healthy is not mapped in PSL , it defaults to High.
Note: If the DDB signal CB1 Healthy is not mapped in PSL , it defaults to High.
1555
1572
436
306
907
1573
306
907
1491
306
907
1555
1454
437
328
915
1455
328
915
1456
328
915
307
308
329
330
Figure 179: Circuit Breaker Healthy and System Check Timers Healthy logic diagram (Module 39)
5.16
AUTORECLOSE SHOT COUNTERS
A number of counters are provided to enable analysis of circuit breaker Autoreclose history. The counters are
stored in non-volatile memory, so that the data is maintained even in the event of a failure of the auxiliary supply.
P446SV Chapter 11 - Autoreclose
P446SV-TM-EN-1 319