大型电力变压器直流电阻若干测试方法探讨及现场缺陷分析

Discussion on Several Testing Methods of DC Resistance of High Power Transformer and Field Fault Analysis

变压器绕组直流电阻试验是预防性试验中重要的一项。论述了其基本原理,介绍了几种常用的快速测量方法,最后结合现场实例分析了变压器直流电阻试验的重要作用。

The DC resistance test of a transformer is important in the preventive test. The paper discusses its basic prin- ciple and presents several common fast testing methods. The example analysis by the field shows that the DC resistance test of the fransformer is very important.