고주파 부분방전(HFPD)의 Pulse Analysis Map에 의한 GIS 결함 판별에 관한 연구

Abstract

Since one decade, the detection of High frequency Partial discharge has been proposed as one of the effective method for the diagnosis of the power component under service in power grids. As a tool for this detection, UHF sensor based on the antenna technology has been commercialized for mainly GIS due to its advantages. However, regarding the recognition of the vital defects introducible into the GIS. Different types of softwares have been proposed and employed without any convincing probability of identification. In this regards, our work leads us to suggest a novel method named "PA Map" to identify the defects inside the GIS based on the HFPD detection by use of HFCT sensor which is designed according to our patent.