The TYE4 series ultra efficient three-phase permanent magnet synchronous motor (hereinafter referred to as the motor) has the advantages of low loss, low temperature rise, high efficiency, high power factor, compact structure, small volume, low noise, and small vibration. It also has the advantages of high starting torque, short starting time, and high overload capacity. The motor is easy to control, with a constant speed that does not vary with load fluctuations or voltage fluctuations, and is only determined by frequency, ensuring smooth and reliable operation. Due to strict speed synchronization and good dynamic response performance, it is suitable for variable frequency control. When designing the motor, a squirrel cage design was added based on the characteristics of asynchronous motors, which can achieve asynchronous starting during start-up and improve the defect of large vibration during the starting process of synchronous motors. When designing the motor, the external dimensions are synchronized with the requirements of the 1EC standard, which can seamlessly replace three-phase asynchronous motors

The energy efficiency of the motor meets the Level 1 energy efficiency standard of GB30253-2013 "Energy Efficiency Limit Values and Energy Efficiency Grades for Permanent Magnet Synchronous Motors". Through high temperature resistance design, the motor can be continuously used as an S1 working motor during normal use, and can also operate normally for 2 hours in high temperature environments, such as an ambient temperature of 300 degrees Celsius. As a driving device, it is installed on the subway tunnel fan to provide reliable ventilation and smoke exhaust facilities for various types of subways, hotels, and large buildings.