摘要
SF 6落地罐式断路器是电力系统中重要的控制和保护设备,其可靠性直接影响电网的安全稳定运行。检测局部放电被公认为评价断路器绝缘性能的有效手段,主要方法包括脉冲电流法、超声法、暂态地电压法,以及特高频法。文章结合实验与现场经验,综述了SF 6落地罐式断路器各种局部放电检测技术和分析方法,并总结各方法的特性,提出现场应用建议。
SF 6 floor tank circuit breaker is an important control and protection device in the power system,and its reliability directly affects the safe and stable operation of the power grid.Partial discharge detection is recognized as an effective means to evaluate the insulation performance of circuit breakers.The main methods include pulse current method,ultrasonic method,transient ground voltage method,and UHF method.Combined with the experiment and field experience,various partial discharge detection technologies were summarized and the methods of SF 6 floor tank circuit breaker were analyzed.The characteristics of each method were summarized,and suggestions for field application were put forward.
作者
李旸
麻震烁
董肇晖
范曦光
程智鹏
陈东明
韩璐
王天乙
LI Yang;MA Zhenshuo;DONG Zhaohui;FAN Xiguang;CHENG Zhipeng;CHEN Dongming;HAN Lu;WANG Tianyi(Maintenance Branch,State Grid Jibei Power Co.,Ltd.,Beijing 102488,China)
出处
《电工技术》
2020年第16期80-82,共3页
Electric Engineering
基金
国家电网有限公司科技项目资助(合同号:SGJB-JX00JXJS1900197)。
关键词
落地罐式断路器
局部放电
检测
在线监测
floor tank circuit breaker
partial discharge
detection
online monitoring
