基于电容电桥法的避雷器泄漏电流分析方法研究  

Analysis of Arrester Leakage Current Based on Capacitance Bridge Method

作　　者：孙磊[1] 林婷[2] 陈炯[2] 王玥[2] 高源[2] 

机构地区：[1]国网浙江省电力公司检修分公司,杭州215000 [2]上海电力学院,上海200090

出　　处：《电力与能源》2017年第4期383-386,共4页Power & Energy

摘　　要：为了了解避雷器在运行过程中流过电流的状态,提出了一种基于电容电桥的测量方法对其电流进行测量,并对各成分之间的关系进行了分析。结果表明,阻性三次谐波分量占阻性分量的1/4,约在全泄漏电流中占2.5%~5%。因此通过测量阻性三次谐波分量即全泄漏电流的大小可以对阻性分量进行预估。这为今后避雷器泄漏电流的在线监测提供了依据。In order to understand the current flowing through the arrester under high AC voltage, a measurement method based on capacitance bridge is proposed to measure the leakage current, and the relationship between the components is analyzed. The results show that the resistive three harmonic component accounts for 1/4 of the resistive component, and accounts for about 2.5%-5% of the total leakage current. Therefore, the resistance component can be estimated by measuring the resistance three harmonic component. This research aims to provide a new method for the on-line monitoring of the arrester leakage current in the future.

关 键 词：避雷器 泄漏电流 阻性分量 

分 类 号：TM862[电气工程—高电压与绝缘技术]