Geared motors are also called geared motors, and they are more and more widely used in our daily lives. Excessive temperature rise of the geared motor is also a common heat. During operation, there are many reasons for the excessive temperature rise of the geared motor. Only by finding the right cause can the geared motor failure be completely and effectively eliminated.
1. The stator winding is short-circuited or grounded between turns or between phases, which will increase the current, increase the regulation loss and overheat. If the fault is not serious, just re-pack the insulation, and if it is serious, replace the winding.
2. The one-phase winding of the stator is broken or a branch of the parallel winding is broken, causing the three-phase current to be unbalanced and the windings are overheated.
3. Broken bars of the cage rotor or loose joints of the wound rotor coils cause excessive current in the maintenance network and heat generation. The copper bar rotor can be welded or replaced, and the cast aluminum rotor should be replaced.
4. The bearing is damaged or worn too much, causing the stator and rotor to rub against each other. Check whether the bearing is loose and whether the stator and rotor are poorly assembled.
5. If the load is too large, the load should be reduced or a high-power motor should be used.
6. If the belted working machine is faulty and causes overload, check the belted machine and eliminate the fault.
7. To start too frequently, the number of starts should be reduced.
8. The operating environment temperature is too high (over 40°C), which makes the three-phase inlet air too hot and difficult to dissipate heat. Cooling measures should be taken.
9. There is too much dust and oil pollution inside and outside the motor, which affects heat dissipation, so dust and oil pollution should be eliminated.
10. The air duct of the motor is blocked, the ventilation is not smooth, and the air intake is reduced. The debris and dirt at the air duct should be eliminated.
11. If the fan in the motor is damaged, installed upside down or not installed, it should be installed correctly, and the damaged fan should be repaired or replaced.
12. When the voltage exceeds the rated voltage of the motor by more than 10%, or is lower than the rated voltage of the motor by more than 5%, the motor will easily heat up under the rated load, and the temperature rise will increase. The Dalan motor manufacturer recommends that you check and adjust the voltage.
13. The phase-to-phase imbalance of the three-phase power supply voltage exceeds 5%, which causes the three-phase current imbalance, which causes the motor to generate additional heat, and the voltage should be adjusted.
14. The one-phase fuse is open or the power switch is in poor contact, which causes the lack of phase operation and overheating. The damaged components should be repaired or replaced.
15. The three-phase motor winding wiring is wrong. If the star is connected to a delta by mistake, or the delta is connected to a star by mistake, running under the rated load will cause the motor to overheat and should be checked and corrected.
1. The stator winding is short-circuited or grounded between turns or between phases, which will increase the current, increase the regulation loss and overheat. If the fault is not serious, just re-pack the insulation, and if it is serious, replace the winding.
2. The one-phase winding of the stator is broken or a branch of the parallel winding is broken, causing the three-phase current to be unbalanced and the windings are overheated.
3. Broken bars of the cage rotor or loose joints of the wound rotor coils cause excessive current in the maintenance network and heat generation. The copper bar rotor can be welded or replaced, and the cast aluminum rotor should be replaced.
4. The bearing is damaged or worn too much, causing the stator and rotor to rub against each other. Check whether the bearing is loose and whether the stator and rotor are poorly assembled.
5. If the load is too large, the load should be reduced or a high-power motor should be used.
6. If the belted working machine is faulty and causes overload, check the belted machine and eliminate the fault.
7. To start too frequently, the number of starts should be reduced.
8. The operating environment temperature is too high (over 40°C), which makes the three-phase inlet air too hot and difficult to dissipate heat. Cooling measures should be taken.
9. There is too much dust and oil pollution inside and outside the motor, which affects heat dissipation, so dust and oil pollution should be eliminated.
10. The air duct of the motor is blocked, the ventilation is not smooth, and the air intake is reduced. The debris and dirt at the air duct should be eliminated.
11. If the fan in the motor is damaged, installed upside down or not installed, it should be installed correctly, and the damaged fan should be repaired or replaced.
12. When the voltage exceeds the rated voltage of the motor by more than 10%, or is lower than the rated voltage of the motor by more than 5%, the motor will easily heat up under the rated load, and the temperature rise will increase. The Dalan motor manufacturer recommends that you check and adjust the voltage.
13. The phase-to-phase imbalance of the three-phase power supply voltage exceeds 5%, which causes the three-phase current imbalance, which causes the motor to generate additional heat, and the voltage should be adjusted.
14. The one-phase fuse is open or the power switch is in poor contact, which causes the lack of phase operation and overheating. The damaged components should be repaired or replaced.
15. The three-phase motor winding wiring is wrong. If the star is connected to a delta by mistake, or the delta is connected to a star by mistake, running under the rated load will cause the motor to overheat and should be checked and corrected.
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