一起玻璃钢电容型变压器套管故障分析  

Analysis of a FRP Capacitive Transformer Bushing Fault

作　　者：康倢瀅 李俊文 王瑞果 陈湫林 KANG Jieying;LI Junwen;WANG Ruiguo;CHEN Qiulin(Guiyang Power Supply Bureau of Guizhou Power Grid Company,Guiyang 550002,China)

机构地区：[1]贵州电网有限责任公司贵阳供电局,贵州贵阳550002

出　　处：《电工技术》2021年第5期97-98,101,共3页Electric Engineering

摘　　要：作为一种新型绝缘结构的套管,玻璃钢电容型套管目前已开始应用于电力系统中。相对于传统的油纸绝缘套管,这种套管具有结构简单、机械强度高、维护成本低等优势,因此被认为是套管技术未来的发展方向。基于其结构与传统套管存在较大的差异,对设备运维提出了新的要求。分析了一起玻璃钢电容型变压器套管末屏未接地故障原因,并提出了避免发生类似故障的方案,为玻璃钢绝缘套管的运维检修工作积累技术经验。As a new type of insulating bushing,FRP capacitive bushings have been used in power system.Compared with the traditional oil paper insulated bushing,this kind of bushing has the advantages of simple structure,high mechanical strength and low maintenance cost,so it is considered as the future development direction of bushing technology.Due to the great difference between its structure and traditional casing,new requirements of equipment operation and maintenance are put forward.The causes of an ungrounded fault at the end screen of FRP capacitive transformer bushing are analyzed.The scheme to avoid similar failure is put forward,which is used to accumulate technical experiences for the operation and maintenance of FRP insulating sleeve.

关 键 词：玻璃钢电容型套管 绝缘试验 末屏放电 

分 类 号：TM855[电气工程—高电压与绝缘技术]