Due to their high power and strong impact resistance, high-voltage motors are widely used in many machines such as crushers, water pumps, compressors, etc. If we want to make the high-voltage motor play an ideal role in use, we must not only ensure the quality of the motor and understand its various usage parameters, but also know how it works. To this end, the editor introduces its working principle in detail. Let's take a look!
When a three-phase AC high-voltage power supply is passed through the nail winding of the high-voltage motor, a rotating magnetic field is generated in the stator cavity. Before rotation, the stationary rotor conductor is equivalent to the magnetic lines of force of the rotor conductor relative to the cutting magnetic field under the action of the rotating magnetic field, thereby generating an induced current in the rotor conductor. These rotor conductors with induced current form electromagnetic torque in the stator magnetic field, causing the rotor to rotate. In order to increase the starting torque and reduce the starting power supply, the rotor is usually made into a winding structure, which is mainly convenient for connecting a three-phase symmetrical resistor or a small resistor in series in the rotor winding circuit when the motor is started under heavy load, so that the electronic circuit reactance is increased, thereby reducing the starting current. After the motor is started, the three-phase lead wires of the rotor are short-circuited to make the motor run at full speed.
The above is an introduction to the working principle of high-voltage motors. If users want to use high-voltage motors proficiently, they need to understand its working principle in detail and install and use the motor according to the correct methods and steps.
