Q: Every few hours—sometimes minutes!—my living room and one side of my kitchen lose electrical power. I’ll check the breaker panel and, sure enough, a circuit breaker has tripped…again. Should I call ...

You may have experienced a short circuit on a 15A to 100A branch circuit that also tripped the main breaker in that same panelboard, resulting in widespread downtime. This short circuit may have ...

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 ...

During a routine generator test at a hospital, the results revealed the need to reset the hospital’s molded-case circuit breakers (MCCBs) to the correct value per a coordination study. One of the ...

When the power fails, you expect your generator to hum steadily in the background, not to spend the night tripping breakers and burning through fuel for almost no useful power. The most common culprit ...