Circuit-Breaker Tripping Alarm Suppression
In certain systems, the user may wish to actuate an alarm (for example, a horn) when tripping (circuit-breaker
tripping) occurs. This alarm should not to be issued if the circuit breaker is to be reclosed automatically after
tripping or if it is to be closed or opened via the control. The alarm is only to be issued in the event of final
tripping.
Depending on how the alarm is generated (for example, triggered by a fleeting contact of the circuit breaker),
the Alarm suppression signal can be used to suppress the alarm.
The signal is generated if:
•
A definitive protection tripping is not present
•
The automatic reclosing function executes a closure
•
The integrated control executes a closure or opening action
•
External closing is detected via the Manual on function
Further information about its use is included in the Application and Setting Notes.
[lounterd-100611-01.tif, 1, en_US]
Figure 5-40 Definitive Tripping, Circuit-Breaker Tripping Alarm Suppression
Tripping and Opening Information
When a trip or opening command is issued, the breaking information shown in the next figure is saved in the
fault log.
[loausloe-081210-01.tif, 2, en_US]
Figure 5-41 Breaking Information
The following statistics information is saved for the circuit breaker:
•
Number of switching cycles:
All tripping, opening, and closing operations are counted.
5.6.5.5
Function-Group Types
5.6 Function-Group Type Circuit Breaker, 1-/3-Pole
240 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017
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