Alstom MiCOM P546 - Page 346

P54x/EN OP/La4 Operation
(OP) 5-172 MiCOM P543, P544, P545 & P546
OP
DDB CB1 Ext Trip C (537)
DDB CB1 Trip Output C (525)
DDB CB1 Ext Trip B (536)
DDB CB1 Trip Output B (524)
DDB CB1 ExternalTrip A (535)
DDB CB1 Trip Output A (523)
DDB ExternalTrip3ph (534)
DDB CB1 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 Rst CB1 Data (447)
COMMAND: Reset CB1 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
P1113ENf
Figure 109 CB1 condition monitoring – broken current