Alstom MiCOM P54 Series - Page 334

P54x/EN OP/La4 Operation
(OP) 5-160 MiCOM P543, P544, P545 & P546
OP
DDB ExternalTrip C (537)
DDB Trip Output C (525)
DDB ExternalTrip B (536)
DDB Trip Output B (524)
DDB ExternalTrip A (535)
DDB Trip Output A (523)
DDB ExternalTrip3ph (534)
DDB Trip 3ph (526)
1
INTSIG Phase A Current
INTSIG Phase B Current
INTSIG Phase C Current
SET CUMULATIVE IA
BROKEN In
SET CUMULATIVE IB
BROKEN In
SET CUMULATIVE Ic
BROKEN In
S
R
S
R
S
R
1
1
1
DDB Reset CB Data (447)
COMMAND: Reset CB Data
1 cycle
t
0
1 cycle
t
0
1 cycle
t
0
1
1
1
1
1 cycle
t
0
1
Note: Broken current totals shall not
be incremented if the relay is in test
mode.
NOTE: Broken current totals shall not be incremented if the relay is in test mode
P1113ENb
Figure 102 Circuit breaker condition monitoring - broken current (P543/P545)