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.
出处
《浙江电力》
2014年第3期35-37,62,共4页
Zhejiang Electric Power
关键词
开关柜
套管
放电
防范措施
switch cabinet
bushing
discharging
preventive measures
