How to process the motor fan? Fan motor processing, motor processing, it is mainly composed of stator, rotor and the air gap between them. After the stator winding is connected to the three-phase AC power supply, a rotating magnetic field is generated and the rotor is cut to obtain torque. When the life of the bearing is over, the vibration and noise of the motor will increase significantly. When the radial clearance of the bearing reaches the following value, the bearing should be replaced. Structure: The stator core is generally punched and laminated from silicon steel sheets with an insulating layer on the surface of mm thick, and evenly distributed slots are punched in the inner circle of the core to embed stator windings.
When disassembling the motor, the rotor can be taken out from the shaft extension end or the non-extended end. If it is not necessary to remove the fan, it is more convenient to take out the rotor from the non-shaft extension end. When pulling out the rotor from the stator, prevent damage to the stator winding or insulation. Undervoltage protection For motors or electrical components in some applications, when the grid voltage drops to %-% of the rated voltage, it is required to automatically cut off the power supply and stop working. This kind of protection is called undervoltage protection. When the voltage of the power grid decreases, the speed and torque of the motor will decrease or even stall.
