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Electric Test Equipment for Circuit Breakers: Important Tests

Doble TDR9100 Circuit Breaker Test SystemDo you have running power circuit breakers that are working perfectly? You might not realize that while there are no apparent flaws in the system, your devices might be on the threshold of failure.

Electric devices like circuit breakers gather moisture and dirt over time, which weakens their insulation systems- especially if you don’t maintain them regularly. And if you use them in hostile environments that have corrosive substances (like chlorine in water plants or H2S in oil industries), the chances of system breakdown get even higher. What are some common DC tests that you can do to make sure your circuit breakers continue running smoothly?

ANSI/NETA MTS2011 mentions some tests that should be conducted regularly on circuit breakers.This standard also gives the result values that the tests should produce. There are three DC tests that are recommended by NETA (International Electrical Testing Association):

  • DC Overpotential test to check the insulation system
  • Insulation resistance test to examine the wiring of the system
  • Contact Resistance analysis to gage the current path resistance

These tests are essential for the proper working of any circuit breaker. You can get special electrical test equipment for these tests from all the leading manufacturers of test equipment.

Doble TDR9100 Circuit Breaker Test System

Megger CB-360-DC/CB-120-DC DC Circuit Breaker Test Sets

Vanguard CT-7500 S2 Circuit Breaker Timer / Analyzer

Omicron CPC 100 Multi-Functional Primary Test System

This electrical test equipment is available for rent, lease, or purchase from Protec Equipment Resources. We are here to help you with your testing equipment needs.

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