某型动车变压器风机电机启动短时异音分析

Analysis of short time abnormal noise of fan motor starting in EMU

动车变压器风机电机影响着整个动车组的运行安全,一旦发生故障不仅影响动车运行还会给乘客带来安全隐患。以动车变压器某系列风机电机为例,在对该型风机电机的启动异音、噪音进行检测后,发现了一种由外风扇引起的偶发性电机异音故障。通过对故障原因进行分析可找到排除该故障的方法。

The transformer fan motor affects the operation safety of the whole EMU.Once the fault occurs,it will not only affect the operation of EMU,but also bring safety risks to passengers.Taking a series of fan motors of the high-speed locomotive transformer as an example,an accidental abnormal sound fault of the motor caused by the external fan is found,after detecting the abnormal sound and noise of the fan motor.Through analyzing the cause of the fault,the method to eliminate the fault can be found.