SUN Lipeng, LIU Xingwen, QI Fei, et al. Analysis of internal heating defect in GIS[J]. 2016, 36(2): 66-68.DOI:
Analysis of internal heating defect in GIS
摘要
本文根据1例隔离开关内部接触不良导致的发热缺陷
结合其他带电检测手段及其负载情况
进行了综合分析
认为该类缺陷应结合特高频、超声波局部放电和SF6气体分析结果
判断其是否存在放电性缺陷
且应加强跟踪检测
防止因接触不良而导致悬浮、自由颗粒或尖端等放电缺陷;同时
分析缺陷发热严重程度时应综合考虑罐体结构、气室大小以及负载情况等因素。
Abstract
The paper analyzes the heating defect caused by poor contact in the disconnection switch combined with other on-line detection means and charged load. The article considers that it is necessary to judge whether there are discharged defects according to super high frequency
ultrasonic partial discharge and SF6 gas analysis results. The tracking detection should be strengthened to avoid suspension
free particles or tip discharge defect due to bad contact. The analysis of defect severity should be analyzed combining with the structure