Facing power quality (PQ) problems head-on requires facility engineers and managers (FEMs) first to find out if a PQ problem exists, and — if it does — then how it is affecting the plant’s operations.

Ideally, the power factor should be 1; then the load appears as a resistor to the AC source. However, in the real world, electrical loads not only cause distortions in AC current waveforms, but also ...