Here are some common reasons for burning out motors:
1. Overload
If the weight carried by the crane motor exceeds its rated load, overload will occur. Causing an increase in motor load and temperature. Ultimately, it may burn out the motor.
2. Motor winding short circuit
Short circuits in the internal coils of motors are one of the common causes of motor burnout. Regular maintenance and inspection are required.
3. Unstable operation
If the motor does not run smoothly during operation, it may cause excessive heat to be generated inside the motor, thereby burning it out.
4. Poor wiring
If the internal wiring of the motor is loose or short circuited, it may also cause the motor to burn out.
5. Motor aging
As the usage time increases, some components inside the motor may experience aging. Causing a decrease in work efficiency and even burning.
6. Lack of phase
Phase loss is a common cause of motor burnout. Possible causes include contact erosion of the contactor, insufficient fuse size, poor power supply contact, and poor motor incoming line contact.
7. Improper use of low gear
Long term use of low-speed gears may result in low motor and fan speed, poor heat dissipation conditions, and high temperature rise.
8. Improper setting of lifting capacity limiter
Failure to properly set or intentionally not use the weight limiter may result in continuous overloading of the motor.
9. Defects in electrical circuit design
The use of defective cables or electrical circuits with aging or poor contact may cause motor short circuits, overheating, and damage.
10. Three phase voltage or current imbalance
Motor phase loss operation or imbalance between the three phases can also cause overheating and damage.
In order to prevent motor burnout, regular maintenance and inspection of the motor should be carried out to ensure that it is not overloaded and to maintain the good condition of the electrical circuit. And install protective devices such as phase loss protectors when necessary.
Post time: Sep-29-2024
