Why doesn't the electric motor rotate after being connected to the power supply?

Publish Time:

2018-07-26

1. Wiring error of control equipment; 2. The set value adjusted by the overcurrent relay is too small; 3. Power not connected, such as blown fuse, switch malfunction or poor contact, broken lead wire, etc.
1. Wiring error of control equipment;
 
2. The set value of overcurrent relay adjustment is too small;
 
3. Power supply not connected, such as fuse blown, switch faulty or poor contact, lead broken circuit, etc.;
 
4. Faulty connection between power supply and motor;
 
5. Motor winding faulty, such as phase-to-phase short circuit, ground fault, wrong wiring, open circuit, etc.;
 
6. Misoperation of wound rotor asynchronous motor start or starting resistance too small;
 
7. Motor bearing faulty, stuck;
 
8. Stator and rotor cores rubbing (sweeping), equivalent to adding excessive load;
 
9. Motor overloaded or mechanical rotating parts stuck, etc.

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