一起40.5kV开关柜放电的原因分析及处理  

Cause Analysis and Treatment on Discharging of 40.5 kV Switch Cabinet

作　　者：潘益伟[1] 陈建胜[1] 林坚[1] 金佳敏[1] 

机构地区：[1]国网浙江省电力公司温州供电公司,浙江温州325000

出　　处：《浙江电力》2014年第3期35-37,62,共4页Zhejiang Electric Power

摘　　要：对一起40.5 kV开关柜放电的原因进行了分析,对2种不同结构套管的电场分布进行了仿真,证明不带屏蔽套管周围空气中,电场强度大,均匀性差,更易发生局部放电。对导致开关柜放电的其他因素也进行了总结,提出切实可行的防范措施。This paper analyzes the reason of discharging in 40.5 kV switch cabinet and simulates the electric field distribution of two bushing with different structures. It is proved that the screen-free bushing has strong electric field strength and poor uniformity in the air , and hence partial discharge can easily happen. The pa-per also summarizes other factors causing discharge of switch cabinet and summarizes practical and feasible preventive measures.

关 键 词：开关柜 套管 放电 防范措施 

分 类 号：TM591[电气工程—电器]