串级式电压互感器铁磁谐振对介损试验的影响  

The influence of ferro-resonance phenomenon of cascade-type voltage transformer on dielectric loss test

作　　者：侯峰[1,2] 

机构地区：[1]国网宁夏电力公司检修公司,宁夏银川750011 [2]西安交通大学高电压技术教研室,陕西西安710049

出　　处：《宁夏电力》2013年第5期20-22,33,共4页Ningxia Electric Power

摘　　要：针对关帝变电站220 kVⅠ号母线电压互感器在介质损耗因数测量时试验数据漂移的问题,从铁磁谐振原理出发,分析了串级式电压互感器铁磁谐振对介质损耗因数测量的影响,提出合理可行的解决方案。应用结果表明:通过自备发电机对仪器电压源供电,是一种简单而有效的解决方法。Aiming at the problem of the test data occur shift when dielectric loss factor measurement of voltage transformer of 220 kV I bus bar in Guandi Substation, based on principle of ferro-reso- nance, analyzes the influence of ferro-resonance phenomenon of cascade type voltage transformer on dielectric loss factor measurement, puts forward feasible solution.The application result shows that it is a simple and effective solution using standby dynamo supply voltage source to the test instrument.

关 键 词：串级式电压互感器 铁磁谐振 介质损耗因数 

分 类 号：TM451[电气工程—电器]