Research on insulation materials and aging mechanisms of high-efficiency three-phase asynchronous motor
Publish Time: 2025-01-30
As a key equipment in modern industry, the performance and reliability of high-efficiency three-phase asynchronous motor are directly related to the efficiency and stability of the entire production line. As an important part of the motor winding, the selection and aging mechanism of the insulation material have a vital impact on the life and performance of the motor.
In the high-efficiency three-phase asynchronous motor, the selection of winding insulation materials is particularly critical. Common winding insulation materials include insulating paper, insulating paint, etc. These materials have good electrical properties and mechanical strength, which can effectively prevent short circuits between wires in the winding or between wires and iron cores, ensuring the normal operation of the motor. At the same time, shielding insulation materials and slot wedge insulation materials also play an important role in motors. They can suppress interference, reduce the impact of electromagnetic waves on surrounding electronic equipment, and prevent the wires in the winding from being damaged or worn due to mechanical vibration.
However, during long-term operation, the insulation materials of the motor will be affected by various factors such as electric field, temperature, mechanical force, humidity, etc., resulting in aging. The speed of insulation aging is directly related to the insulation structure, the actual materials used, the manufacturing process, and the actual operating environment of the motor. Aging can lead to a decline in insulation performance, and in severe cases, it can even cause the motor to short-circuit, affecting the life and reliability of the motor.
In order to study the aging mechanism of insulating materials, researchers need to track and test the motor for a long time. They found that the aging of insulating materials is mainly manifested in thermal aging and electrical aging. Thermal aging is caused by the heat generated by the motor during operation, which causes the molecular chains of the insulating material to polymerize, harden, become brittle and shrink, and even oxidative cracking. Electrical aging is caused by local discharge and electrical breakdown under the action of the electric field, which causes damage to the insulating material.
In order to extend the life of the motor and improve its reliability, researchers are actively looking for new insulating materials and studying how to improve the aging resistance of existing insulating materials. At the same time, they are also exploring how to slow down the aging of insulating materials by improving the manufacturing process and optimizing the operating environment of the motor.
In summary, the insulating materials and aging mechanism of high efficiency three-phase asynchronous motors are a complex and important issue. Researchers need to continue to conduct in-depth research and find better insulating materials and aging protection methods to ensure the reliability and stability of the motor and provide strong support for the development of modern industry.
