electricalscho

An electric current that reverses direction at regular intervals, having a magnitude that varies continuously in a sinusoidal manner.

An electrical relay which is intended to be energized by a quantity, whose value is either higher than that at which it picks up or lower than that at which it drops out.

A side brace for a cross arm that is not loaded (balanced) evenly.

Air Insulated Switchgear

A variety of high voltage circuit breakers that use a blast of compressed air to blow-out the arc when the contacts open. Normally, such breakers only were built for transmission class circuit breakers.