摘要
运行电压下的全电流及阻性电流测试是日常判断金属氧化物避雷器(MOA)性能状态的重要方法,不同于一般的500 kV变电站,特高压变电站MOA由于诸多被放大的因素影响,有时带电检测数据按照规程不能轻易判断MOA当前的状态。对特高压变电站金属氧化物避雷器(MOA)两年的带电检测数据进行分析,对其中的规律进行总结,并提出若干建议,对特高压MOA的运行及维护具有一定的指导意义。
The total current and resistive current test under operating voltage is an important method to reflect the metal oxide surge arrester （MOA） performance status, unlike the normal 500 kV substation, due to the influence of some magnified factors on MOA , sometimes there will be some unusual data difficult to judge the current status of the MOA in UHV substation. The live test data during two years of MOA in UHV substation are analyzed, the rules are summarized and some suggestions are proposed. It has some guiding significance for operation and maintenance of the MOA in UHV station.
出处
《电瓷避雷器》
CAS
北大核心
2016年第6期156-161,共6页
Insulators and Surge Arresters
关键词
特高压
金属氧化物避雷器
带电测试
全电流
阻性电流
相角差
UHV
metal oxide surge arrester （MOA）
live detection
total current
resistive current
phase angle difference
