摘要
柱上开关局部放电对绝缘的恶化起到推动作用,造成开关绝缘损坏导致线路故障。本文针对该问题展开讨论,首先阐述局部放电的相关概念及危害,总结局部放电的种类与特点,并针对柱上真空断路器ZW20开关的局放问题,找到引起局放的关键点,并在开关生产过程中就对开关整体局放降低和控制,从源头降低开关局放在运行过程中造成线路故障的可能性。
Partial discharge of the on-column switch promotes the deterioration of insulation,causing circuit failure due to switch insulation damage.This paper discusses the problem,fi rstly expounds the related concepts and hazards of partial discharge,summarizes the types and characteristics of partial discharge,and fi nds the key points causing partial discharge for the partial discharge problem of the vacuum circuit breaker ZW20 switch.In the switch production process,the overall discharge of the switch is reduced and controlled,and the switch station is reduced from the source to amplify the possibility of line failure during operation.
作者
朱红杰
李杨
赵飞
王建辉
周宏宇
Zhu Hong-jie;Li Yang;Zhao Fei;Wang Jian-hui;Zhou Hong-yu
出处
《电力系统装备》
2019年第23期238-240,共3页
Electric Power System Equipment
关键词
局部放电
开关局部放电原因
降低开关局放
partial discharge
cause of partial discharge of switch
reduction switch
