Development of the On-line Partial Discharge Measuring Sensor and System on Stator Windings for Hydro Generator

수력발전기 고정자권선용 운전중 부분방전 측정 센서 및 시스템 개발

  • Published : 2005.11.25

Abstract

A lot of R&D on the diagnosis of stator winding insolation for large rotating machines has been carried out since the 1970s. The on-line partial discharge measurement has proved to be an effective technique in the evaluation of the state of stator insulation in high voltage rotating machines. The purpose of this paper is to describe the method of the on-line partial discharge measurement on stator windings for hydro- generator with ceramic sensor and measuring system. We developed ceramic coupling sensor, partial discharge measuring system, terminal box and index parameters.

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