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.
出处
《宁夏电力》
2013年第5期20-22,33,共4页
Ningxia Electric Power
关键词
串级式电压互感器
铁磁谐振
介质损耗因数
cascade-type voltage transformer
ferro-resonance
dielectric loss factor
