CAJ | 학술논문

局部放电检测是目前气体绝缘金属封闭式开关设备(gas insulated switchgear,GIS)状态诊断的关键技术手段。分析各种局部放电检测方法,认为特高频法抗干扰能力较强,检测效率较高,可实现故障模式识别及定位。基于此,采用局部放电检测法发现一起 GIS典型悬浮放电缺陷,采用时差定位法确定缺陷位置采用相位同步技术确定缺陷相序。经过解体检查验证,检查结果与特高频诊断结果一致。
국부방전검측시목전기체절연금속봉폐식개관설비(gas insulated switchgear,GIS)상태진단적관건기술수단。분석각충국부방전검측방법,인위특고빈법항간우능력교강,검측효솔교고,가실현고장모식식별급정위。기우차,채용국부방전검측법발현일기 GIS전형현부방전결함,채용시차정위법학정결함위치채용상위동보기술학정결함상서。경과해체검사험증,검사결과여특고빈진단결과일치。
Partial discharge detection is a key technological means for gas insulated switchgear state diagnosis at present. This paper analyzes various partial discharge detection methods and considers that ultra-high frequency is provide with stronger anti-jamming capability and higher detection efficiency which may realize fault mode recognition and positioning. On the ba-sis of the above analysis,one GIS typical suspended discharge defect was discovered by applying partial discharge ultra-high frequency detection method. Afterwards,ultra-high frequency time-of-arrival location was used to ensure defect position and phase synchronous technology was used to confirm defect phase. By strip inspection,the result was verified agreed with diagnosis result of ultra-high frequency method.