摘要
分析了大型变压器,特别是三相五柱式变压器直流电阻测量中存在的问题,提出了全压恒流电源法与消磁法相结合的改进方法。经实例测试,改进方法测量结果准确、测量时间短,同时解决了剩磁问题。
This paper analyzes the problems existing in the measurement of DC resistance of large transformer especially the three-phase five-column transformer.A new method is proposed based on the full-voltage constant-current power supply method and degaussing method.By practical test,the improved method can get accurate result and shot measurement time without residual magnetism.
出处
《山西电力》
2015年第1期33-36,共4页
Shanxi Electric Power
关键词
变压器
直流电阻
消磁法
快速测量
transformer
DC resistance
degaussing method
fast measurement
