When you get the call, “The motor won’t start,” you’d best have a logical and systematic plan in place to approach the problem. “Easter egging” just doesn’t work unless you happen to be very lucky!

Today, the electric industry has a full toolbox available to provide highly advanced technological solutions to the problems facing the distribution network. It also has an assortment of standards for ...

Programmable for current rating, low-voltage threshold, circuit control, and prioritization of loads during battery backup, the ESS60-T electronic circuit breaker is said to offer unmatched load ...

E-T-A Circuit Breakers has introduced the E-T-A 4930, a new remotely controlled, single pole circuit breaker (RCCB) approved to MIL-PRF-83383 for the protection of aircraft electrical systems and ...

In Part 1 of this two-part series, we presented a 3-phase, 480VAC motor circuit with its associated controls (Figure). We stepped through a logical, systematic approach to troubleshoot the main power ...