The motor overheats
1. Causes of failure ① The power supply voltage is too high; ② The power supply voltage is too low, the motor is running with a rated load, and the current is too high to make the winding heat; ③ When the winding is repaired and removed, the thermal disassembly method is improper and burns the iron core; ④ The motor is overloaded or frequent Start; ⑤ Motor lacks phase, two-phase operation; ⑥ Insufficient varnish is set on winding after rewinding; ⑦ Environment temperature is high, there is much dirt on the motor surface, or the air duct is blocked;
2. Trouble shooting ① Reduce the power supply voltage (such as adjusting the power supply transformer tap); ② Increase the power supply voltage or replace the thick power supply wire; ③ Repair the iron core to eliminate the fault; ④ Reduce the load; Control the start according to the prescribed times; ⑤ Restore the three-phase operation ; ⑥ Adopting secondary dipping and vacuum dipping process; ⑦ Cleaning motor, improving ambient temperature, adopting cooling measures