Circuit breakers are at the heart of every modern power system. To ensure the systems are properly protected, it’s essential the breakers should operate correctly when called upon to do so. This means ...

Churning with voltage and resembling an explosion at the wire factory, the breaker panel exudes mystique. But it's just a big switch, filled with other smaller ­switches, which lead to the switches ...

Although it would be nice to be factory-trained on every piece of equipment (and have a troubleshooting decision-tree or flowchart, too!), reality hands us a different situation. You may be tasked ...