10kV电压互感器损坏原因分析及防范措施  

Causation Analysis and Prevention Measure of Damage of 10kV TV

作　　者：涂刚 TU Gang(Xiangtan Power Supply Company of Hunan Power Company,Xiangtan 411100,China)

机构地区：[1]国网湖南省电力有限公司湘潭供电分公司,湖南湘潭411100

出　　处：《电工技术》2018年第19期96-97,99,共3页Electric Engineering

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.

关 键 词：电压互感器 励磁特性 接地故障 暂时过电压 

分 类 号：TM451[电气工程—电器]