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Analysis of internal heating defect in GIS
Author(s): 
Pages: 66-68
Year: Issue:  2
Journal: Hunan Electric Power

Keyword:  带电检测红外热成像GIS发热缺陷;
Abstract: 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.
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