Partial discharge in electrical equipment insulation can lead to catastrophic failure. NETA Certified Technicians must understand the reasons partial discharge may occur and how to properly detect, ...

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A circuit breaker that trips repeatedly is often assumed to be defective, but that assumption is frequently wrong. Breakers respond to conditions downstream, and replacing one without understanding ...

What distinguishes a medium voltage circuit breaker from other types is not the enclosure or operating mechanism, but the method of arc extinction. The interruption medium governs arc energy, ...