Partial Discharge Tests for Medium-Voltage Power Cable Systems

Dr. Jim (Jun) Guo and Zhong Zheng Cover Story, Fall 2020 Cover Story

Medium-voltage (MV) power cables are the backbone of the power distribution systems developed over two hundred years. Currently, 2.3 million miles of MV cables are installed in the USA, most with extruded insulation. Diagnostic testing technologies can differentiate MV cables by their operational condition and aging process prior to faults, thereby providing guidance for proactive maintenance and asset management. This …