The motor manufacturer reminds that the protection grade is an important function parameter of the motor products, and the machine equipment manufacturer should select the three-phase asynchronous motor with the appropriate protection grade according to the actual utilization.

　　In the actual process, Hubei Wanbang invented that the motor protection grade selected by some customers is too protective, which leads to increased material consumption and poor economy; while some customers choose the motor protection grade to be unfair, and foreign matter enters the inner cavity of the motor, and the operation progresses. Unnecessary hindrance issues often arise in the process.

　　When choosing a motor, customers often think more about the motor's power, installation size, number of poles, and efficiency and other parameters, but often ignore the motor's protection level.Especially when it comes to the purchase cost control factor, the square box high-voltage motor mostly recycles the IP23 protection grade, and it is mostly used in some unsuitable environments.

　　In order to hinder the process of motor processing and clarification, IP23 motor windings are polluted and damaged in many environments. The windings of the motor are surrounded by dust, especially dust with conductive objects, and the erosion of the windings is more serious.When the motor windings are surrounded by dust, the heat dissipation of the windings will be seriously hindered. When there are conductive objects in the dust, it will also cause the motor windings to produce quality obstacles such as grounding and interphase breakdown; if the dust enters the air gap between the stator and the rotor, or Into the bearing system, there may still be a problem of sweeping the motor.