Zero Crossing

The point at which a sinusoidal voltage or current waveform crosses the zero reference axis.


1) With ac measurements, effective power (measured in Watts) equals the product of voltage, current, and power factor (the cosine of the phase angle between the current and the voltage). Watts=EI cosine(Theta). A Watt is a unit of power that considers bo


1) A unit of work equal to the power of one watt operating for one hour. 2) 3600 Joules.

Western Underground Committee

A committee of western based electric utility engineers that provides a forum for establishment of guides that provide options, recommendations and practices for its members. These guides are used to assist its members in preparing their own specificatio