How to prevent the motor from burning?

- Oct 22, 2018 -

How to prevent the motor from burning?

 

Automatic Door Openers.jpgThe main reason for the overload operation of the motor is that the drag load is too large, the voltage is too low, or the mechanical jam is driven. When the motor is in an overload state, the speed of the motor will decrease, the current will increase, the temperature will rise, and the winding coil will overheat. If it is overloaded for a long time, the motor will burn out due to insulation aging at high temperature, which is the main reason for the motor burning. Therefore, in the movement of the motor, it is necessary to pay attention to check whether the transmission is flexible and reliable. Check and adjust the tightness of the transmission belt at any time. The coaxiality of the coupling. If there is any stuck phenomenon, stop the machine immediately and find out the cause and trouble. Then run again.


Always check the temperature of the bearings, stators, casings, etc. of the motor for abnormalities, especially for voltage-free, current and frequency monitoring facilities and motors without overload protection. Temperature rise monitoring is especially important. If the temperature rise near the bearing is found to be too high, stop immediately and check the bearing for damage or lack of oil. If the bearing is damaged, it should be replaced after replacing the new bearing. If the bearing is short of oil, grease should be added, otherwise the bearing will be further damaged and cause collapse, causing the broom and burning the motor.


If the motor vibrates, it will cause different axes of the machine connected to it to increase, so that the motor load increases, the current rises, and the temperature rises to burn the motor. Therefore, when the motor is running, it is necessary to check whether the anchor bolt, the motor end cover, the bearing gland, etc. are loose, whether the connection device is reliable, and the problem should be solved in time. The technical state of the motor starting equipment is decisive for the normal starting of the motor. Otherwise, it is easy to burn when the motor has not entered normal operation. Practice has proved that the vast majority of the reasons for burning the motor are on the starting equipment.