摘要
介绍了一种准确测定绝缘子串分布电压的仪器．通过在220、500kV系统上的实测表明，基于门限电压法的短路叉或火花间隙检测劣质绝缘子的方法误检率太高．又讨论了低零值绝缘子的判断方法，特别是对电站内的绝缘于更为有意义．
An accurate instrument is introduced for distributed voltage measurements of suspen-sion insulator strings. The field measurements on 220kV, 500kV systems show that the spark gap method is not very appropriate, especially for insulator strings in substations. The discrimi-nation methods of low and zero resistance insulators are discussed.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
1995年第3期72-75,共4页
High Voltage Engineering
关键词
绝缘子
低零值绝缘子
故障诊断
电力系统
distributed voltage
spark gap method
insulator srtings in substations
