There are many reasons for three-phase asynchronous motor hot, the common voltage is too high or too low, load is too large or frequently over the rated current, bearing is not good, rotor sweep or inter-turn short circuit, motor fan is broken or lost or the hood is blocked, heat fin dirt, high ambient temperature will lead to three-phase asynchronous motor hot. The following is a brief introduction of the three-phase asynchronous motor hot reasons and measures adopted:

　　The main causes of hot three-phase asynchronous motor are:

　　1. Three-phase asynchronous motor bearing is short of oil and hot;

　　Adopt the method is to stop the motor power work, to the motor bearing oil.

　　2. Three-phase asynchronous motor is heated due to poor heat dissipation due to blade damage;

　　The adoption method is to replace the new motor blade;

　　3. The ambient temperature of the three-phase asynchronous motor is too high and the ventilation is not good, resulting in heating;

　　The adoption method is to add and movable vortex fan to add heat dissipation effect;

　　4. Three-phase asynchronous motor vibration is too large, over current time form motor start not open and heat;

　　Adopt the method is to check whether the load end abnormal problems, the motor will be suspended work to deal with!

　　In conclusion, the formation of three-phase asynchronous motor hot reasons are many, clear each reason, better deal with the onset of fault, to ensure the normal operation of three-phase asynchronous motor.