The reason why the motor is overheated and the rotor cannot work normally

1. The rotor can't rotate normally after the motor is started. After the switching power supply is connected, the motor finds that the rotor does not rotate and is accompanied by noise. The reasons for such common faults are as follows: First, if it is a single-phase operation caused by a phase failure of the switching power supply, It is necessary to carefully check the switching power supply line, circuit breaker and wiring location to see if there is any open circuit, damage, etc., and carry out the replacement and repair of the damaged part.

Secondly, if the motor load is too heavy and the motor is too heavy and cannot be operated, first reduce the Torque Gear Motors Company and start operation under unloaded or no-load conditions. Thirdly, there is another reason that the motor rotor does not rotate due to the stall of the dragged machine, and the power supply should be turned off, and the machine should be disassembled to remove the stall first. Eventually, if there is a wiring error or short circuit or open circuit inside the motor stator, the motor will not operate normally. It is necessary to remove the wiring, reconnect and check the head and tail ends, and then carry out the next step of maintenance.

2. The motor is overheated. When the motor is running, it will be accompanied by a lot of heat and even smoke. The reasons for this common fault are as follows: First, the power supply voltage of the motor is too low, which will cause heat under the rated load. For common faults, the motor voltage should be adjusted immediately. Secondly, the high humidity in the working environment of the motor or the common failure of the motor fan can also cause the motor to overheat. The unfavorable conditions in the environment should be removed immediately to ensure the running wind of the motor fan. Third, if the load of the motor exceeds its load-bearing capacity, it will also cause hotness, and the load of the motor should be manipulated within the rated value range. In the end, too many positive and negative rotation frequencies of the motor during operation will also cause hotness. Therefore, in the process of selecting the motor, the machine with good forward and reverse adaptability should be preferred to prevent overheating.

3. The common safety faults caused by the electrification of the motor shell are very serious. The reasons for these common faults are: First, the common faults of the motor lead insulation or the insulation board at the junction box position will cause the motor shell to become live. For common faults, turn off the power immediately and replace the insulated wire boards. Secondly, the inner winding end cover of the motor will also conduct electricity when it is in contact with the motor shell. In such cases, the end cover should be removed for correction, and the insulation treatment should be done before reassembly. In the end, abnormal grounding of the motor shell will also cause the motor shell to become live. This common fault can only be cleared by grounding the motor transmission line.