不拆引线测试直流500kV避雷器泄漏电流方法  

A measuring method of DC 500 kV arrester without removal of lead conductor

作　　者：黄江岸[1] 邓维[1] 刘要峰[1] 刘涵[1] 

机构地区：[1]国网湖南省电力公司检修公司,湖南长沙410004

出　　处：《湖南电力》2013年第5期19-21,共3页Hunan Electric Power

摘　　要：介绍一种可用于惠州鹅城换流站直流500 kV避雷器直流泄漏测量的不拆引线试验方法——等电位屏蔽法,详细阐述试验方法的原理及步骤,并分析测量要点及注意事项。实践经验表明,该方法测量精度高,抗干扰能力强,适合鹅城换流站直流避雷器直流泄漏电流的测量。An experimental method of measuring leakage current of DC 500 kV an＇ester without lead conductor removal （equipotential shield method） in Echeng converter substation is put forward in this paper. The basic principle and process of this method are introduced, and matters need attention and precautions are analyzed. Practical experience shows that the proposed method has high accuracy and strong anti-interference ability which adapts to measuring leakage current of DC 500 kV arrester in Echeng converter substation.

关 键 词：直流500 kV避雷器 泄漏电流 不拆引线测试 等电位屏蔽 

分 类 号：TV736[水利工程—水利水电工程]