고체절연차단기(Solid Insulated Switchgear)용 PD 센서 선정에 관한 연구

Defects in the epoxy insulation switchgear can result in failure. Therefore it is important to detect defects, such as void, in time and to determine their risk for a possible breakdown. For high voltage apparatus, the partial discharge (PD) detection technology has proven to be a useful method. This paper describes the application of a PD detection method for the Solid Insulated switchgear(SIS) and its practical application. Experimental studies show that the PD detection of the MV switchgear defects is possible. The practical experiences related to this study provide further insight for applying the PD monitoring technique to the solid insulated switchgears.