水电自动化与大坝监测
水電自動化與大壩鑑測
수전자동화여대패감측
HYDROPOWER AUTOMATION AND DAM MORNITORING
2012年
2期
51-53
,共3页
水电站%定子绕组绝缘%预防性试验%泄漏电流
水電站%定子繞組絕緣%預防性試驗%洩漏電流
수전참%정자요조절연%예방성시험%설루전류
hydropower station%stator winding insulation%preventive test%leakage current
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。
以小山水電站1號機組髮電機定子繞組絕緣降低的處理經過為例,對2002—2005年1號機組電氣預防性試驗測得的三相洩漏電流的數據進行分析,從理論上驗證瞭1號機組定子繞組絕緣水平逐年下降,存在跼部絕緣薄弱點的結論。併對定子繞組三相洩漏電流不平衡的原因進行瞭分析,總結瞭處理此類問題應註意的事項。
이소산수전참1호궤조발전궤정자요조절연강저적처리경과위례,대2002—2005년1호궤조전기예방성시험측득적삼상설루전류적수거진행분석,종이론상험증료1호궤조정자요조절연수평축년하강,존재국부절연박약점적결론。병대정자요조삼상설루전류불평형적원인진행료분석,총결료처리차류문제응주의적사항。
Taking the treatment of stator insulation deterioration of No.1 Unit in Xiaoshan Hydropower Station as an example,the measuring results of three-phase leakage current in electric precautionary test from 2002 to 2005 are analyzed.The conclusion that the insulation level of the stator winding is dropping with years and the conclusion that the insulation is with some weakness points are proved.The reasons that cause the three-phase leakage current unbalanced are analyzed.The notice for treating this problem are summarized.
