单相电机水泵的故障主要有以下三个方面:电动机和线路、水泵和管路、机械。因此,在确认了故障所属的范围后应对号进行如下检查。 (1)查电机绝缘情况用500伏摇表或万用表,测量绕组对地绝缘电阻判断电机绝缘情况。用摇表,转动摇柄(120转/分),指针指“0”时,表示绕组已通地;若指针摇摆不定,说明绝缘击穿,只是未完全通地; Single-phase motor pump failure mainly in the following three aspects: motor and wiring, pumps and piping, machinery. Therefore, after confirming the range to which the fault belongs, check the response number as follows. (1) check the motor insulation 500V shake table or multimeter to measure the insulation resistance of the winding to determine the motor insulation. With shake table, turn the crank (120 r / min), the pointer refers to the “0”, said the winding has been through; if the pointer wavering, indicating insulation breakdown, but not completely through;