Chengdu Roots Blower Factory: Why Is Roots Blower Motor Often Damaged?

　Chengdu Roots Blower FactoryWhy is the motor of Roots blower often damaged?

Open-phase operation of 1. motor

This is also the killer of the three-phase asynchronous motor. When the motor runs normally, the three-phase load is symmetrical, so the three-phase current is basically persistently balanced and of similar size. If the motor is out of phase during operation (the case where any phase in the three-phase winding is out of phase is called out of phase), the fan oscillation may increase, showing abnormal noise, lower speed ratio and added current flow. The ambient temperature of the motor may rise greatly, which may cause the motor to burn down, the general quality of the motor more than ten minutes will burn.

2. rolling bearing destruction

Because of the long-term uninterrupted operation of Roots blower, the operation temperature of the motor itself is too high, and the rolling bearing is not filled with vegetable grease, which leads to the phenomenon of less rolling bearing oil until the rolling bearing is destroyed, bumpy shaft and split transmission belt, resulting in the contradiction between stator and motor rotor (alias stuck cylinder), resulting in a sharp rise in the ambient temperature of the iron core, burning slot insulation and turn-to-turn insulation, from the surface to cause winding resistance phase short circuit or voltage to ground "fire". When it is obvious, the stator core will be inverted, displaced, the drive shaft will be damaged, and the bearing end cover will be abolished.

3. the electric air valve is closed, the load will be burned.

　　Chengdu Roots Blower Factory: Because the electric air valve is not opened or opened after the Roots blower is started, the usage is not good. However, when the fan is running here, the ambient temperature of the Roots fan motor itself rises sharply until the air outlet is burned or the electric air valve is calibrated, and the fan fails to be closed in time. However, when the fan is running here, the ambient temperature of the motor itself rises sharply until it is burned. If the maintenance function is normal (refitting the appropriate heat relay), it will not be caused in general. However, it should be noted that because the thermal relay cannot be calibrated and the maintenance standard value is not very accurate, the model selection is not suitable for these and human factors are set to be actively calibrated, so when maintenance is required, the actual effect is usually not achieved, and it is also possible that frequent maintenance will not be possible in the future, the real root cause cannot be found, and human factors will increase the maintenance standard value. To make the maintenance invalid.

4. return to moisture

Due to the distribution box or motor seepage or moisture caused by the formation of the insulation layer is reduced, is also a common cause of destruction, but there is no way for safety protection. Only shakes insulation in the application attention and on time. Before the motor does not explode, it can be treated by drying and dripping paint from scratch. In particular, if the frequency converter is used to drive the motor, one should be more cautious about this item, otherwise I'm afraid even the frequency converter will be reimbursed.

5. Other

Other reasons are not more common: such as low or too high voltage, loose interphase short circuit of wiring head caused by vibration, rodent hazard, refusal to communicate between imported motor working voltage and domestic working voltage. A variety of problems with pressure relief start-up control loops do not change, Roots blower motor long-term low voltage operation, etc. Therefore, the accident rate can be reduced by paying attention to the prior inquiry of various overall objectives before use.

Chengdu Roots Blower Factory Xiaobian explained here. If you need to purchase and maintain Roots Blower, please contact us Chengdu Roots Blower Factory.