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
潘益伟,陈建胜,林坚,金佳敏
PAN Yiwei,CHEN Jiansheng,LIN Jian,JIN Jiamin
摘要(Abstract):
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 paper also summarizes other factors causing discharge of switch cabinet and summarizes practical and feasible preventive measures.
关键词(KeyWords):
开关柜;套管;放电;防范措施
switch cabinet;bushing;discharging;preventive measures
基金项目(Foundation):
作者(Author):
潘益伟,陈建胜,林坚,金佳敏
PAN Yiwei,CHEN Jiansheng,LIN Jian,JIN Jiamin
DOI: 10.19585/j.zjdl.2014.03.010