发电机出口PT断线故障分析与探讨

Analysis and Discussion on PT Disconnection Fault at Generator Outlet

在机组并网运行过程中,发电机出口PT断线故障时有发生,造成发电机各参数指标异常,影响机组安全运行。结合某电厂发电机出口PT配置,对两起发电机出口PT断线故障处理进行详细分析,避免了大型发电机组因出口PT故障而停运,同时探讨了改进措施和注意事项,为同类型发电机出口PT故障处理提供了指导。

In the process of grid connected operation of the unit,PT disconnection fault at the generator outlet occurs from time to time,resulting in abnormal parameters of the generator and affecting the safe operation of the unit.Combined with the PT configuration at the generator outlet of a power plant,the treatment of two generator outlet PT disconnection faults is analyzed in detail,which avoids the shutdown of large generator set due to the outlet PT fault.At the same time,the improvement measures and precautions are discussed,which provides guidance for the same type of generator outlet PT fault treatment.