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Analysis on Unbalance of Three-Phase Leakage Current of Stator Winding on No.1 Unit in Xiaoshan Hydropower Station
Pages: 51-53
Year: Issue:  2
Journal: Hydropower Automation and Dam Monitoring

Keyword:  hydropower stationstator winding insulationpreventive testleakage current;
Abstract: 以小山水电站1号机组发电机定子绕组绝缘降低的处理经过为例,对2002—2005年1号机组电气预防性试验测得的三相泄漏电流的数据进行分析,从理论上验证了1号机组定子绕组绝缘水平逐年下降,存在局部绝缘薄弱点的结论。并对定子绕组三相泄漏电流不平衡的原因进行了分析,总结了处理此类问题应注意的事项。
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