Partial Discharge Theory, Modeling and Applications To Electrical Machines

Abstract: Partial discharge monitoring is an effective on-line predictive maintenance test for motors and generators, as well as other electrical distribution equipment. The benefits of on-line testing allow for equipment analysis and diagnostics during normal production. Corrective actions can be planned and implemented, resulting in reduced unscheduled downtime. This paper will present a theory to promote the understanding of partial discharge technology, as well as various implementation and measurement techniques that have evolved in the industry. Then insulation modeling and partial discharge modeling in electrical machines will be introduced. At last traditional partial discharge test methods in electric machines will compare to new method of partial discharge monitoring and corrective actions will interpret