Q&A(ch)

    货运电动三轮车电动机不转   故障现象：电动机不转。 分析检修：首先检查连线正常，测电动机定子绕组正常，转子绕组不通，检查发现碳刷磨损严重，更换碳刷，测转子绕组正常，接通电源，试车，电动机运转正常。   The Motor of the Freight Electric Tricycle Doesn’t Rotate  **Fault Phenomenon**: The motor doesn’t rotate. **Analysis and Maintenance**: Firstly, check that the connection wires are normal. Measure the stator winding of the motor and find it to be normal. However, the rotor winding is open-circuited. Upon inspection, it […]