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How to check and handle the temperature rise when the motor is running?

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How to check and handle the temperature rise when the motor is running?

How to check and handle the temperature rise when the motor is running?


The temperature rise is too high when the motor is running. Therefore, it can be inspected and processed in the following aspects.
1 Overload operation causes the temperature rise to be too high. If it is determined by inspection that the temperature rise is too high due to the mechanical belt being too tight and the shaft is not flexible, you should properly loosen the belt with the mechanical maintenance personnel, you should dismantle the mechanical equipment, the shaft should be flexible, and you should keep it under the rated load. Run.
2 The working environment is too harsh, and the temperature rise is too high. At this time, you can take a simple pergola to cover the shade or use a blower, and the fan blows. At the same time, it should pay more attention to remove the oil and dust of the air duct of the motor itself to improve the self-cooling conditions.
3 Motor operation failure caused the temperature to rise too high. If the motor winding has a short circuit and grounding or the bearing is damaged during operation, the local temperature rise will be too high. At this time, please turn on the motor, visually smell the nose, and burn it. Touch the hand, compare the temperature, find the short circuit, and separate the short circuit. The bearing is damaged, and you can replace the bearing.
4 Due to the rupture of the squirrel cage rotor bar and the temperature rise caused by the open welding, the motor's rotor is put into operation after being processed.
5 In addition, the motor temperature rise is too high and is related to the motor voltage is too high or too low.
6 Re-wound motor, due to changes in winding parameters may also cause the motor to heat up during test run. At this time, you can measure the three-phase no-load current of the motor. If it is greater than the rated value, the number of turns is insufficient and should be increased.
7 Frequent reversal or excessive starts can also cause the motor temperature to rise too high. In this case, reduce the number of motor reversals and starts, or use other types of motors.

 

Fuan Zhongzhi Pump Co., Ltd

 

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Pub Time : 2019-06-13 09:17:43 >> News list
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