发电机直流泄漏电流不平衡原因及试验方法研究

Research on the Gauses and Test Method for DC Leakage-Current Unequilibrium of the Generator

抚顺发电厂2号发电机交接试验时发现定子三相泄漏电流相差悬殊,对此进行查找、分析,确定产生原因。在此基础上,提出利用改变泄漏电流测量的不同试验接线方式,达到区分绝缘缺陷部位的目的。

Great phase differences of rotor three phase leakage current are found in the hand over test on No.2 generator in Fushun Power Plant.The causes of which are found,analyzed and determined.Based on that,Ways are proposed to distinguish the insulation defect by a different test wiring method,which could change leakage current measurement.