1000MW汽轮发电机转子绕组匝间短路故障

Analysis of the Inter-turn Short Circuit of 1 000 MW Turbo Generator Windings

对某电厂1000MW汽轮发电机在运行过程中发现转子的轴振动异常为例进行了分析。在结合运行记录和大修试验检测的相关数据分析后,认为转子存在早期匝间短路隐患。就大型汽轮发电机转子绕组匝间故障诊断方法及存在的问题进行了研究。

The anomaly of roller vibration occurred on the windings of a 1 000 MW operating turbo generator was analyzed as an example. With the recording data of operation and large - scale repairing, it is believed that an incipient fault of early - stage inter - turn short circuit existing on the windings. The main methods and its problems during diagnosing inter - turn problems of large turbo generator rotor windings was studied and discussed ; it also provides related experience and reference for the studies of similar large turbo generator sets.