External sensor combination structure for partial discharge detection for GIS

摘要

the present invention is a gas insulated switchgear (Gas Insulated Switchgear, hereinafter "GIS") of the partial discharge detection relates to an external sensor coupled structure, in particular a housing made of an aluminum material having a case formed of a size corresponding to the epoxy injection port of the spacer (insulating filler), and a microwave in this case (Ultra High Frequency, hereafter "UHF") band fixing the patch antenna is designed to effectively detect the electromagnetic wave signals of external sensors and to form, by coupling the sensor plate to the inlet of the spacer of epoxy GIS, mounting and fixing a simple, the spacer surface is wrapped with an aluminum flange and detecting an electromagnetic wave signal of the partial discharge occurs in the UHF band with respect to the GIS to check occurrence of partial discharge generation position and the inside track of the GIS is ever possible, part of the GIS, and to prevent the failure of the operation through which GIS relates to the external sensor coupling structure for discharge detection.