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.

Electrica signature analysis (ESA) uses the magnetic field in the air gap of an electrical machine to evaluate power quality conditions. Dry and oil transofrmer types are subject to problems ...

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 ...