Siemens SIPROTEC 7SS523 V3.2 Manual page 394

Distributed busbar/ breaker failure protection
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Appendix
A.11 Group Alarms - Central Unit
Abbreviations
Group Alarm
FNo.
Description
10476
Error with protection blocking
10475
Error without protection blocking
378
$00, .., $03 are variables which are replaced automatically with
$00 Number of the bay unit
$01 Bay name
$02 Name of the switching element (e.g. Isolator or circuit breaker)
$03 Name of the bus zone
BUnn Bay number 01 to 48
BSZz Modules for protection processing BSZ1, BSZ2, BSZ3
Ln
Phase L1, L2, L3
BZnn Bus zone 01 to12
Isoln Isolator 1 to 5
FNo.
10455
10426
10428
10427
10443
10410
10415
176.1171
176.1172
176.1173
10423
10444
10426
10428
10427
10410
10415
10420
10421
10422
176.1174
Alarm
Logical function
Bay unit failure
Failure of isolator aux. voltage (group alarm)
Isolator position faulty (group alarm)
Isolator fault: run time (group alarm)
BZ blocked selective (g. a.)
Diff-current superv. CZ (group alarm)
Diff-current superv. BZ (group alarm)
15V supply supervision $00
5V supply supervision $00
0V supply supervision $00
Measured value superv. BU (group alarm)
Blocking by supervision zero crossing (Block ZeroCross)
Failure of isolator aux. voltage (g. a.)
Failure of isolator aux. voltage (g. a.)
Isolator fault: run time (group alarm)
Diff-current superv. CZ (group alarm)
Diff-current superv. BZ (group alarm)
15V supply supervision central uni
24V supply supervision central uni
Battery supervision central unit
Battery supervision $00
Relates to
BUnn
1
BUnn
1
BUnn, Isoln
1
BUnn, Isoln
BZnn
Ln
2
BZnn, Ln, BSZ2/3
3
BUnn
BUnn
BUnn
BUnn
BZnn
BUnn
4
BUnn, Isoln
4
BUnn, Isoln
4
Ln
5
BZn, Ln, BSZ2/3
6
BUnn
7SS52 V4 Manual
C53000-G1176-C182-1

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