Circuit Breaker Operation Time (In-Service)

In-service testing methods show degradation accumulated during long idle times better than their off-service counterparts because to prepare a breaker for off-service testing, it has to be operated at least once. For the First trip test method connections are made at the trip coils and the CT’s secondary side. These test methods are very well suited to detected degraded lubricants, contaminated surfaces or corroded mechanical elements.

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CIBANO 500

During a First Trip test, CIBANO measures the opening times by monitoring the CTs’ secondary current (please note that the measured time will include the arcing time).

CIBANO 500
3-in-1 test system for medium- and high-voltage circuit breakers
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Benefits of this solution

Detected degraded lubricants

Degraded lubricants can best be detected by a First Trip test. The CIBANO 500 has everything needed to perform this and all other important tests on circuit breakers.

Detect contaminated surfaces

Contaminated surfaces can best be detected by a First Trip test. The CIBANO 500 has everything needed to perform this and all other important tests on circuit breakers.

Detect corroded mechanical elements

Corroded mechanical elements can best be detected by a First Trip test. The CIBANO 500 has everything needed to perform this test and can also perform all other important tests on circuit breakers.

Literature
OMICRON-Magazine-Article-01-2019-Optimized-Testing-ENU.pdf (1 MB)
A3-069-Renaudin-Nenning_CIGRECanada2017.pdf (410 KB)
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