Why do motor bearings leak electricity?

The reasons for motor bearing leakage may involve several aspects:

Firstly, the intrusion of moisture or rainwater into the motor, or water seepage, is one of the common causes of leakage. These external factors may reduce the insulation performance inside the motor, thereby causing leakage.

Secondly, excessive oil or other dirt on the windings may also cause leakage. These contaminants may reduce the insulation performance between the windings and the bearings, allowing current to flow where it shouldn't, resulting in leakage.

Additionally, reduced or damaged insulation at the terminals or junction boxes is also a common cause of leakage. If the insulation performance of the joints is poor, current may leak from the joints, leading to leakage. Finally, motor overheating or insulation aging may also cause leakage. Prolonged operation or harsh working environments may cause the internal temperature of the motor to become too high, leading to insulation material aging, cracking, and subsequent leakage.

To prevent and address motor bearing leakage issues, the following measures can be taken:

Firstly, strengthen the motor's waterproof and moisture-proof measures to ensure that the motor is not affected by external moisture and rainwater. Secondly, regularly clean the oil and dirt on the windings of the motor to keep them clean and dry.

Additionally, regularly check the insulation performance of the terminals or junction box connections to promptly identify and address issues with reduced or damaged insulation. Finally, for motors that have experienced insulation aging, maintenance and replacement should be carried out promptly to prevent leakage accidents.

Please note that motor bearing leakage issues may involve complex electrical and mechanical knowledge, so when dealing with such problems, it is advisable to seek the assistance and guidance of professionals to ensure the safety and effectiveness of operations.

We Germana Tianjin Industrial Group is a leading supplier of high quality & efficiency electric motors in China for more than 35 years.

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