高海拔220kV瓷外套避雷器电位分布缺陷研究  

The Research on Potential Distribution Defect for 220 kV High Altitude Porcelain-clad Arrester

作　　者：周祥国[1] 耿莉娜[2] 钟雅风[2] 耿徽 

机构地区：[1]辽宁公安司法管理干部学院,辽宁沈阳110161 [2]国网辽宁省电力有限公司电力科学研究院,辽宁沈阳110006 [3]国网辽宁省电力有限公司检修分公司,辽宁沈阳110006

出　　处：《东北电力技术》2014年第6期9-13,共5页Northeast Electric Power Technology

摘　　要：以一起高海拔220 kV瓷外套避雷器故障为例,通过试验解体和电位分布测试等手段对避雷器电位分布缺陷进行研究,确认故障原因为避雷器结构设计不合理,致使电位分布不均。并对故障避雷器结构进行改进设计,解决高海拔220 kV避雷器电位分布缺陷。Taking high altitude 220 kV porcelain-clad arrester defect as an example, defect of potential distribution is stidied by the means of disintegration and potential distribution＇test and it comes to the conclusion that the defect of unreasonable arrester design caused uneven potential distribution. The paper further improves the structure of the fault arrester designed to address the high altitude 220 kV arrester potential distribution defects.

关 键 词：避雷器 高海拔 电位分布 沿面放电 

分 类 号：TM774[电气工程—电力系统及自动化] TU856[建筑科学]