基于雷电电流冲击温升特性的带串联间隙线路避雷器状态监测系统  

State Monitoring System of Externally Gapped Line Arrester Based on Temperature Rise Characteristic of Lightning Current Impulse

作　　者：汤心韵 李政廉 周力行[1] TANG Xinyun;LI Zhenglian;ZHOU Lixing(School of Electrical and Information Engineering,Changsha University of Science and Technology,Changsha 410076,China;Hunan Electric Power Transmission and Transformation Engineering Limited Company,Changsha 410015,China)

机构地区：[1]长沙理工大学电气与信息工程学院,长沙410076 [2]湖南省送变电工程有限公司,长沙410015

出　　处：《电瓷避雷器》2020年第5期53-59,67,共8页Insulators and Surge Arresters

基　　金：湖南省自然科学基金资助项目(编号:10jj5059);湖南省教育厅重点资助项目(编号:13A106)。

摘　　要：带串联间隙线路避雷器在长期使用过程中电阻片容易受潮,导致其可靠性逐渐降低,存在安全隐患。目前带串联间隙线路避雷器仅能通过安装的放电计数器来观察其运行状态,但该方法忽视了电阻片受潮及绝缘部件老化等问题,仅凭大电流冲击次数来判断带串联间隙线路避雷器的状态,具有一定的分散性,容易产生误判。针对此问题,本文基于雷电电流冲击温升特性研发了一种带串联间隙线路避雷器状态监测系统,该系统主要由避雷器数据采集器、手持巡检终端、后台数据库及主站监控系统四部分组成。经测试,该系统运行良好,能及时监测带串联间隙线路避雷器的运行状态。In the long-term use of externally gapped line arrester,the resistors is easily damped,which leads to the gradual decrease of its reliability and the existence of potential safety hazards. At present,the externally gapped line arrester can only observe its operation state through the installed discharge counter,but this method neglects the problems of damp resistors and aging of insulating parts,and judges the state of the externally gapped line arrester only by the times of high current impulse,which has a certain dispersion and is prone to misjudgement. To solve this problem,Based on the temperature rise characteristics of lightning current impulse,a condition monitoring system for externally gapped line arrester is developed in this paper. The system mainly consists of arrester data acquisition device,hand-held patrol terminal,background database and main station monitoring system. The test results show that the system runs well and can monitor the operation status of externally gapped line arrester in time.

关 键 词：带串联间隙线路避雷器 雷电电流冲击 温升特性 状态监测 

分 类 号：TM862[电气工程—高电压与绝缘技术]