Appendix
392
7SS52 V4 Manual
C53000-G1176-C182-3
A.12 Group Alarms - Bay Unit
Group Alarm Alarm
FNo. Description FNo. Logical function
140 General internal failure of device
161 Only existing alarm is 161.
161 Measured value supervision of cur-
rents
161 Standard-Group Alarms for all Measured Value
Supervisions. On BU the summation current will be
monitored.
501 General fault detection of device
1455 Back-up breaker fail. prot.: fault det.
1761 General fault detection O/C
7630 Busbar protection: Fault detected
511 General trip of device 1471 Trip by back-up breaker failure prot.
1791 O/C general trip command
7631 Busbar protection: Trip in phase L123
7632 CBF protection: Trip repeat phase L123
7633 CBF protection: Trip repeat phase L1
7634 CBF protection: Trip repeat phase L2
7635 CBF protection: Trip repeat phase L3
7643 CBF protection: Trip L123
7644 End fault protection: Trip phase L123
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