Analysis of 21 common causes of motor fever

In everyday use, cause there are many motor heating. According to the common cause of LAN motor motor heating, do the following summary:

1, the room temperature is too high;

2, poor heat dissipation;

3, overload;

4, over-voltage under voltage or voltage unbalance;

5, frequent start stop or frequent reversing;

6, phase;

7, fan or air inlet and outlet plug;

8, bearing;

9, mechanical jamming blocking;

10, the load inertia is too large starting time;

11, interturn short circuit;

12, the new motor internal wiring error;

13, star delta wiring error;

14, star delta or self start heavy load long starting time or because of failure is not a normal conversion;

15, damp motor;

16, a fault in squirrel cage induction motors;

17, winding asynchronous motor rotor winding or resistance unbalance;

18, the rotor sweep chamber;

19, the power harmonic is too large, eg: a large rectifier equipment near the high frequency equipment etc.;

The motor flux decreases 20, repeated maintenance;

21, some motor winding process.

These 21 reasons are relatively common in everyday use for reference!