Why is the no-load current of the motor very large?

2020-09-02 10:45

Why is the no-load current of the motor very large? According to the small edition of xinanda motor manufacturer, the causes of overload no-load current of motor include:

1. After maintenance, the motor assembly is improper or the motor clearance is large.

2. When the power supply voltage is too high, the magnetic saturation phenomenon will occur in the motor core, resulting in excessive no-load current.

3. For some old motors, due to corrosion or aging of silicon steel plate, weakening of magnetic field strength or insulation damage between plates, excessive no-load current is caused by insufficient turns of stator winding or star connection wrongly connected to triangle connection. For small motor, no-load current can be used as long as it does not exceed 50% of rated current.

The above is about why the no-load current of the motor is very large. If there is anything else you don't know, we can communicate with our customer service, we will serve you wholeheartedly.