Alstom MiCOM P546 - Page 348

P54x/EN OP/La4 Operation
(OP) 5-174 MiCOM P543, P544, P545 & P546
OP
&
DDB Trip 3ph (526)
1
DDB External Trip3Ph (534)
1
1
1
1
1
1
1
DDB CB1 Trip Output A (523)
DDB External Trip A (535)
LD Fast U/C IA<
DDB Pole Dead A (892)
DDB CB1 Trip Output B (524)
DDB External Trip B (536)
LD Fast U/C IB<
DDB Pole Dead B (893)
DDB CB1 Trip Output C (525)
DDB CB1 Ext Trip C (537)
LD Fast U/C IC<
DDB Pole Dead C (894)
DDB Rst CB1 Data (447)
COMMAND: Reset CB1 Data
Note: CB Operating Time shall not be produced if the relay
is in test mode
Start
Start
Start
Stop
Stop
Stop
CB1 OPERATING TIME
PHASE A
CB1 OPERATING TIME
PHASE B
CB1 OPERATING TIME
PHASE C
Reset
CB Op Time Ph A
Reset
CB Op Time Ph B
Reset
CB Op Time Ph C
P1114ENh
Figure 111 CB1 condition monitoring – operation time