Defects and failure types of solid insulation in gas‐insulated switchgear:In situ study and case analysis  

作　　者：Yunqi Xing Zhiwen Wang Lin Liu Yuan Xu Yang Yang Shan Liu Fusheng Zhou Shun He Chuanyang Li 

机构地区：[1]State Key Laboratory of Reliability and Intelligence of Electrical Equipment,Hebei University of Technology,Tianjin,China [2]Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province,Hebei University of Technology,Tianjin,China [3]School of Electric Power,South China University of Technology,Guangzhou,China [4]High Voltage Institute,China Electric Power Research Institute,Beijing,China [5]Simpson Querrey Institute,Northwestern University,Evanston,Illinois,USA [6]HVDC Transmission Technology Department,Globe Energy Interconnection Research Institute,Beijing,China [7]Electric Power Research Institute,China Southern Power Grid,Guangzhou,China [8]High Voltage Institute,Yunnan Institute of Electrical Science,Yunnan,China [9]Institute of Material Science,University of Connecticut,Storrs,Connecticut,USA

出　　处：《High Voltage》2022年第1期158-164,共7页高电压（英文）

基　　金：supported by the National Natural Science Foundation of China(Grant No.51907047);Natural Science Foundation of Hebei Province,China(Grant No.E2020202159);Natural Science Foundation of Tianjin,China(Grant No.20JCQNJC00690);State Key Laboratory of Reliability and Intelligence of Electrical Equipment(No.EERI_PI2020002);Hebei University of Technology.

摘　　要：The gas‐insulated switchgear(GIS)has been widely used in modern ultra‐high voltage systems.However,once it fails,its fully enclosed feature brings challenges in its diagnosis and maintenance.As the failure rate of GIS due to insulator failure has been increasing in recent years,it is necessary and important to understand the commonly existing defects presented in the insulator.First,the manufacturing process of GIS insulators is intro-duced here.The defect types commonly existing in the insulator are categorised.The failure of GIS due to insulator defects that occurred in recent years are reviewed and discussed.The content in this study is useful for engineers and scientists to study on the GIS solid insulation defects and their failure mechanisms.

关 键 词：(GIS) INSULATION SOLID 

分 类 号：TM213[一般工业技术—材料科学与工程]