In the modern industrial field, three-phase asynchronous motors have become an indispensable source of power to drive all kinds of mechanical equipment due to their high efficiency, stability and reliability. However, even the highest quality motor, if the lack of proper care and maintenance, its service life will be greatly reduced. This article will reveal for you to extend the life of three-phase asynchronous motor tips to help you better care and maintenance of this industrial “heart”.

A. Regular inspection and cleaning

1. Regularly check the external environment of the motor:

The working environment of the motor has a direct influence on its life. The motor should be placed in a dry and clean environment, avoiding exposure to high temperature, high humidity, strong corrosive gases or dusty places. Regularly check the surroundings of the motor to ensure good ventilation and avoid heat buildup.

If the motor is operated for a long time in a high temperature, high humidity or heavily polluted environment, its internal insulation performance will be reduced, resulting in the aging of the motor winding insulation and shortening the service life of the motor. Therefore, it is vital to maintain a good working environment.

2. Motor appearance inspection

Regularly check the appearance of the motor for cracks, deformation, corrosion and other signs to ensure that the motor shell is intact.

3. Motor cleaning

Dust, oil and debris on the surface of the motor will affect the heat dissipation of the motor, causing it to overheat and then damage the internal parts of the motor. Therefore, it is necessary to clean the motor surface and vents regularly.

1) Cleaning the motor casing: Use a clean cloth or air blow to remove dust and dirt from the motor casing. Avoid using corrosive solvents or cleaners.

2) Check Vents: Motor vents that are clogged with dust can interfere with cooling and cause the motor to overheat. Clean the vents regularly to ensure air circulation.

3) Clean the heat sink: The heat sink of the motor tends to accumulate dust and debris, which affects the cooling effect. Therefore, the heat sink should be cleaned regularly to ensure good heat dissipation from the motor.

4) Check the wiring: Check whether the wiring of the motor is firm, with no looseness, burnt, etc., to ensure that the electrical connection of the motor is reliable.

B. Lubrication and Bearing Maintenance

Lubrication is the most critical part of motor maintenance. Proper lubrication not only reduces friction, but also lowers temperature and prevents parts from wearing out. Different types of motors require different types of oil or grease.

1. Regular lubricant replacement: Most electric motors are equipped with a lubrication system, which should be checked regularly for the condition of the lubricant. The lubricating oil should be kept clean and free of impurities and the viscosity of the lubricating oil should be in accordance with the usage requirements of the motor.

2. Check the bearing wear: check the bearing wear regularly, if you find abnormal bearing wear or noise increase, you should replace the bearings in time to avoid causing more damage.

3. Lubricate the motor bearings: the bearings of the motor are the most easy to wear parts, regular checking and adding grease can effectively reduce the wear of the bearings and prolong the life of the motor.

C. Electrical performance testing and adjustment

1. Measure insulation resistance: Measure the insulation resistance of the motor regularly to ensure good insulation performance of the motor and prevent electrical failure.

2. Adjustment of power supply voltage and frequency: Ensure that the motor operates under rated voltage and frequency to avoid damage to the motor caused by voltage fluctuation and frequency change.

D. Operation Monitoring and Troubleshooting

In the daily use of the motor, its operation status should be monitored regularly, including key indicators such as current, voltage, speed and temperature. By monitoring these parameters, potential motor failures can be detected in time to avoid large-scale damage. (To learn more about motor troubleshooting click on the link)

1. current check: the current value of the motor should be kept within the normal range, too much or too little current may mean the motor is faulty.

2. Temperature check: Overheating of the motor is usually a sign of motor failure or overload, the cooling system should be checked in time to ensure the heat dissipation effect of the motor.

3. Sound check: The motor should run smoothly. If there is abnormal noise, it may be a sign of worn bearings or other mechanical failure.

E. Prevent motor overloading

Overloading of electric motors is one of the main causes of their early damage. Prolonged overloading will not only cause the motor to heat up and reduce efficiency, but also accelerate the aging of the windings. Therefore, in the use of electric motors, should avoid exceeding its rated load operation. (To learn more about motor overload please click the link)

1. Reasonable load configuration: Ensure that the load of the motor is within its rated power and avoid overload operation.

2. Overload protection device: Installation of overload protection device can timely cut off the power supply when the motor is overloaded and protect the motor from damage.

F. Professional Maintenance and Service

For large or complicated three-phase asynchronous motors, it is recommended to invite professional maintenance personnel to carry out comprehensive inspection and maintenance on a regular basis. With rich experience and professional tools, they can more accurately judge the condition of the motor and provide professional maintenance advice and service.

Conclusion

As an important industrial equipment, the healthy operation of three-phase asynchronous motor is crucial to the whole production process. Through reasonable care and maintenance, we can not only extend the service life of the motor, but also ensure its efficient and stable operation. As long as we pay attention to the cleaning, lubrication, inspection and overload protection of the electric motor in daily use, and carry out professional overhaul on a regular basis, we will be able to effectively avoid motor failures and ensure that it can maximize its performance in the workplace. We hope that this little secret can help you better manage and maintain your three-phase asynchronous motor and make it more durable in work.