Circuit-Breaker Test
The Circuit-breaker test function enables you to easily perform a complete test of the trip circuit, the closing
circuit, and the circuit breaker. If the circuit breaker can be opened for 1-poles, you can perform the test sepa-
rately for each circuit-breaker pole.
The circuit-breaker test carries out an automatic open-closed cycle or an open-only cycle of the circuit breaker
during operation. In addition, you can take a current-flow criterion into consideration for the test. The current-
flow criterion causes the circuit-breaker test to be executed only if the current flow through the circuit breaker
is below the parameterizable threshold value.
i
i
NOTE
If the circuit-breaker auxiliary contacts are not connected, a circuit breaker that has been opened may be
permanently closed.
The following test programs are available for you to carry out the circuit-breaker test. 1-pole tests are only
possible if the respective circuit breaker is capable of being opened on 1 pole.
No.
Test Program
1
3-phase open/closed cycle
2
1-pole open/closed cycle A
3
1-pole open/closed cycle B
4
1-pole open/closed cycle C
Structure of the Function
The Circuit-breaker test function is used in protection function groups for circuit breakers.
[dwcbch01-240217, 1, en_US]
Figure 10-3
Embedding of the Function
10.5
Functional Tests
10.5 Circuit-Breaker Test
SIPROTEC 5, High-Voltage Bay Controller, Manual
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C53000-G5040-C015-9, Edition 11.2017
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