A PQ expert can link an abnormal current or voltage waveform to an abnormal condition on a power system just as a handwriting expert matches a signature to a person. Many facilities now have online ...
Partial discharge (PD) is the name given to the partial breakdown of the electrical insulation in high voltage (HV) switchgear and cables. This is a destructive process and, if unchecked, it will ...
Editor's note: This article was first featured in the February 2003 issue of EC&M. It has been updated to reflect newer power quality instruments and updated standards. Today, many facilities have ...