用于特高压的避雷器故障检测方法研究  

Research on fault detection method for UHV surge arrester

作　　者：沙胜 高锦锋 李超 李洪 柳松延 李文泉 Sha Sheng;Gao Jinfeng;Li Chao;Li Hong;Liu Songyan;Li Wenquan(Overhaul Company of State Grid Sichuan Electric Power Company,Chengdu 610000,China)

机构地区：[1]国网四川省电力公司检修公司,成都610000

出　　处：《电测与仪表》2020年第7期113-119,146,共8页Electrical Measurement & Instrumentation

摘　　要：针对避雷器的事故率逐年上升,为了减少事故和保持系统的稳定运行。文章在光纤电流传感器原理的基础上,提出了一种氧化锌避雷器的故障检测方法,采用光纤电流传感器测量氧化锌避雷器阀的阻性泄漏电流,分析阻性泄漏电流的变化情况。并通过实验对多种故障下该方法的有效性和准确性进行验证。结果表明,该方法可以很明显地观测到泄漏电流的变化情况,有效地检测了氧化锌避雷器的故障。该研究为我国避雷器故障检测方法的发展提供了参考和借鉴。The accident rate of the lightning arrester is increasing year by year,in order to reduce the accident and maintain the stable operation of the system,based on the principle of optical fiber current sensor,a fault detection method of zinc oxide arrester is proposed in this paper.The resistance leakage current of zinc oxide arrester valve is measured by optical fiber current sensor,and the change of resistance leakage current is analyzed,meanwhile,the validity and accuracy of this method under various faults are verified by experiments.The results show that this method can clearly observe the change of leakage current and detect the fault of zinc oxide arrester.This study provides a reference for the development of surge arrester fault detection methods in China.

关 键 词：氧化锌避雷器 阻性泄漏电流 光纤电流传感器 故障检测 特高压 

分 类 号：TM933[电气工程—电力电子与电力传动]