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What are the causes of overheating of ordinary electric motors? How to solve it?

Overheating of ordinary electric motors can be caused by many reasons. Common reasons include:

Overload operation: Operating load exceeding the rated capacity of the motor or being under high load for a long time will cause the motor to overheat.

Ambient temperature is too high: A high temperature environment will block the heat dissipation of the motor, resulting in poor heat dissipation, which in turn causes the motor to overheat.

Poor ventilation: A motor that has clogged vents or insufficient space around it to allow for good air flow can also cause overheating.

Bearing wear: Bearing wear increases the internal friction of the motor, generating heat and causing overheating.

Insulation aging: Insulation aging will cause internal short circuit or insulation breakdown of the motor, resulting in local high temperature.

Solutions to fixing motor overheating include:

Reduce the load: Reduce the load on the motor to ensure it operates within the rated load range.

Improve ventilation conditions: Clean the motor vents and ensure there is enough space around them to support good air flow and improve heat dissipation.

Check Bearings: Regularly check the motor's bearings to ensure they are well lubricated to avoid bearing wear that can lead to overheating.

Check the insulation: Check the insulation status of the motor regularly to ensure that the insulation material is not aging, damaged or broken down.

Reduce ambient temperature: If necessary, take steps to reduce the ambient temperature around the motor, such as adding ventilation, using heat sinks, or moving the motor to a cooler environment.

Add cooling equipment: For motors that run for a long time, you can consider installing cooling equipment such as fans, radiators or coolant circulation systems to enhance the heat dissipation effect.

How does humidity affect ordinary electric motors?

The impact of humidity on ordinary electric motors is mainly reflected in the following aspects:

Reduced insulation performance: In a high-humidity environment, the insulation material of the motor easily absorbs moisture, resulting in a reduction in insulation resistance and insulation performance. This may increase the risk of insulation failure in the motor, such as breakdown or short circuit.

Reduced Bearing Life: An environment with high humidity can make the motor's bearings susceptible to corrosion and oxidation, which can shorten the bearing life. The intrusion of moisture will destroy the bearing grease and increase friction and wear.

Corrosion of external metal parts: The external metal parts of the motor are susceptible to corrosion and oxidation in high-humidity environments, thereby reducing the overall corrosion resistance of the motor and shortening the service life of the motor.

Reduced heat dissipation effect: An environment with high humidity will increase the moisture in the air and reduce the density of the air, thus reducing the heat dissipation effect of the motor. This can cause the internal temperature of the motor to rise, increasing the risk of the motor overheating.