A Study on a Intelligent GIS Monitoring System using the Preventive Diagnostic Technology )

Abstract In this study, we give a detailed account of normal and abnormal state of GIS(Gas Insulated Switch-gear) using the preventive diagnostic technology. And it is based on the analysis and diagnosis for storing data of GIS by intelligent GIS monitoring system. The wave shape of GIS sound is similar to noise and is systematically generated by discharge and its corona sound. Therefore, in this paper, to classify normal and abnormal GIS sound. We could discriminate between normal and abnormal case using level crossing rate(LCR) and spectrogram energy rate. KeyWords : GIS(Gas Insulated Switch-gear), Preventive Diagnostic Technolog, Spectrogram Energy * 정회원, 전주비전대학교 디지털전자정보과, (Department of Digital Electronics & Information, VISION University College of Jeonju) ** 정회원, 전주비전대학교 건축과(Department of Architecture Engineering, VISION University College of Jeonju) *** 정회원, 썬메디텍(주)(SUNMEDITEC Co., Ltd.) **** 정회원, 호원대학교 자동차기계공학과, (Department of Automotive & Mechanical Engineering, HOWON University)