避雷器在线监测系统的设计  

Design of On-Line Monitoring System for Metal-Oxide Arresters

作　　者：周妮娜[1] 祝祥林[1] 

机构地区：[1]宝鸡文理学院电子电气工程系,陕西宝鸡721016

出　　处：《电瓷避雷器》2013年第1期112-116,共5页Insulators and Surge Arresters

基　　金：国家创新基金(编号:11C262261033631);宝鸡文理学院重点项目(编号:ZK11028)

摘　　要：避雷器由于长期承受工频电压、冲击电压,再加上各种外部环境因素的影响而趋于老化,绝缘特性遭到破坏,致使避雷器失去作用而引起热崩溃,甚至发生爆炸,因而监测避雷器的性能变得尤为重要。为此,设计了一种在线实时跟踪避雷器运行状态的监测系统,能够对避雷器进行在线监测并分析其雷击次数和生命周期,具有自检能力,自身的故障信息也可以被上传或存储在flash中。通讯电路所采用的各种电子芯片和模块均使用工业级电路,系统设计合理,稳定性好,抗干扰能力强,成本低、简单智能,对保障电网的稳定性起着重要的意义。Power frequency, impulse voltage and other external factors make the arresters aging, the insulation property of arresters is also destroyed, the explosion and thermal breakdown could happen, so it is important to monitor the arresters state. The auther designs a system which can monitor the state of metal-oxide arrests , it can implement on-line monitoring and analyze life cycle and the number of lightning strike, the system has the self-check capability, the failure message can be uploaded or storaged in flash. The system has professional design, good stability, lower cost, and plays an important significance to guarantee the stability of the power grid.

关 键 词：避雷器 热崩溃 在线监测 电网 

分 类 号：TM862[电气工程—高电压与绝缘技术]