摘要
介绍一起10kV电压互感器损坏事件的分析和处理过程,通过试验和全面解体发现电压互感器不满足励磁特性要求且TV采用的硅钢片存在明显的锈蚀,全面分析电压互感器损坏的原因,提出相关的技术监督意见,为类似事件的防范和处理提供参考。
The analysis and treatment of a damage event of 10kV VT was introduced.It was found that the VT did not meet the requirements of excitation characteristics through testing and comprehensive disintegration,and there was significant rust in the Silicon steel plate used in the VT.At the same time,the causes of the damage of VT were analyzed comprehensively,and the relevant technical supervision opinions were put forward to provide reference for the prevention and treatment of similar events.
作者
涂刚
TU Gang(Xiangtan Power Supply Company of Hunan Power Company,Xiangtan 411100,China)
出处
《电工技术》
2018年第19期96-97,99,共3页
Electric Engineering
关键词
电压互感器
励磁特性
接地故障
暂时过电压
voltage transformer(TV)
excitation characteristics
ground failure
temporary overvoltage