How to check the lubrication of three-phase asynchronous motor

The use of three-phase asynchronous motor believe that everyone is no stranger, we should pay attention to check the lubrication when using, so that it will not affect our use, then how 

to check the lubrication will not make mistakes? Xiaobian collated the relevant information, everyone to understand.

Three-phase asynchronous motor maintenance Check the appearance of the motor for cracks, whether the fastening screws and parts are complete, and whether the fixed situation is 

good. Turn the motor shaft to check whether the rotor can rotate freely and whether there is noise when rotating. According to the data shown, such as voltage, power, frequency, 

connection, speed, etc. are consistent with the power supply and load. Check whether the work of the motor transmission mechanism is reliable.

High voltage motor maintenance needs to check whether the ventilation of the motor and bearing lubrication is normal. Check whether the motor grounding device is reliable. Check the 

brush assembly of the motor and whether the brush lifting mechanism is flexible, and whether the position of the brush lifting handle is correct.

Depending on the method of use and where it is used, it may also be subjected to heat, erosion, and even foreign body intrusion. These problems will cause certain damage to the motor. 

If the motor itself is overloaded, undervoltage and overvoltage, it will cause motor winding failure. This will not only affect the efficiency of the motor, but also pose a certain threat to our

 personal safety. Motor maintenance is particularly important at this time.

Due to the excessive change of power supply voltage in the instant during the use of the motor, or single-phase operation, mechanical encounter and other reasons, the insulation skin 

on the surface of the winding wire is damaged, and the short circuit will be caused between the winding and the winding turns. At this time, the magnetic field of the ions will be unevenly

 distributed because of the short circuit, and the imbalance of the three-phase current will cause the vibration and noise of the running motor to intensify during operation.

When the short-circuit problem is serious, the motor can not start normally, even in the short-circuit coil, instantly produce a huge short-circuit current, so that the coil is heated and burne

d in a short time. Therefore, whether it is a household motor or a high-voltage motor used in production, it is necessary to constantly check and maintain the motor during the process of 

use.

Three-phase asynchronous motor how to check the lubrication method we have told you in detail in the above article, you can use our method in the article when checking, so that there 

will be no mistake.