Micom P634 - CB Synchronization Supervision

19Z6136D
CBF_1:
Fault behind CB
[ 038 225 ]
&
CBF_1:
Delay/fault beh. CB
[ 022 171 ]
CBF_1:
I<
[ 022 160 ]
CBF_1:
CB pos. implausible
[ 038 210 ]
MAIN:
CB1 open 3p EXT
[ 031 028 ]
MAIN:
CB1 closed 3p EXT
[ 036 051 ]
IA
t 0
IB
IC
&
Fig. 3-167: Fault behind CB protection
3.31.13 CB Synchronization Supervision
CB synchronization supervision recognizes states where not all circuit breaker
contacts are open or closed. This function uses both current flow monitoring and
evaluation of CB status signals to detect CB synchronization. In order to bridge
CB operate times the time delay CBF_1: Delay/CB sync.superv can be used.
When this time delay has elapsed the signal CBF_1: TripSig CBsync.super is
issued. Poles that are recognized as being ‘open’ will still be signaled.
64Z1109C
t
CBF_1:
TripSig CBsync.super
[ 038 226 ]
CBF_1:
Delay/CB sync.superv
[ 022 172 ]
CBF_1:
I<
[ 022 160 ]
CBF_1:
CB pos. implausible
[ 038 210 ]
MAIN:
CB1 open 3p EXT
[ 031 028 ]
MAIN:
CB1 closed 3p EXT
[ 036 051 ]
<3
CBF_1:
CBsync.superv C open
[ 038 229 ]
CBF_1:
CBsync.superv B open
[ 038 228 ]
CBF_1:
CBsync.superv A open
[ 038 227 ]
IA
IB
IC
&
&
&
&
&
0
Fig. 3-168: CB synchronization supervision
P634
3 Operation
3-212 P634/EN M/R-42-A // P634‑311‑653