What is the standard temperature of the motor housing

The motor shell is the yoke of the stator. If it is thinned, the magnetic circuit may be affected. If the magnetic circuit is saturated, it will lead to the increase of motor speed, current, temperature and noise. Of course, the vibration may also increase (depending on how many earrings are thinned, the change may not be felt). Generally speaking, although the thinning of the motor casing is beneficial to the heat dissipation, it also reduces the overall mechanical strength of the casing, increases the noise and has an impact on the magnetic circuit. Therefore, it is not necessary to carry out corresponding transformation

generally, the temperature of the motor shell shall be maintained within the standard. If it exceeds this standard, attention shall be paid to it and maintenance shall be carried out in time. What is the standard temperature of the motor shell

DC motor: since most DC motors are equipped with cooling fans, the temperature of motor shell is controlled within 50 degrees, which is as high as 60 to 65 degrees in summer

occasion AC motor: if it is a motor that drives a high-speed oil pump, such as 2 motor with more than 2890 revolutions, because the motor operates in dangerous and explosive occasions, the inspector shall measure it once every half an hour. The specific measurement: the surface temperature of the motor shall not exceed 85 to 90 degrees. Because it is a high-speed motor, the temperature in summer is generally controlled below 80 degrees, exceeding the shutdown (considering the insulation grade of the insulating coil)

ground non occasion AC motors: 4 and 6 motors. Because the motor speed is low, the bearing should be lubricated frequently and the temperature should be maintained at 70 degrees. If the bearing temperature exceeds 80 degrees (if it is more than 4 motors), it is the reason for the lack of oil