Introduction to the three-phase asynchronous motor

There is relative motion between rotor winding with the magnetic field and the induced electromotive

force and current, three-phase asynchronous motor profile for motor operation of three-phase

asynchronous motor. Three-phase asynchronous motor rotor speed is lower than the speed of a

perkins diesel generator rotating magnetic field. And interact with the magnetic field in electromagnetic torque, realize the energy transformation. Compared with single phase asynchronous motor, three-phase asynchronous motor operation performance is good, and all kinds of information can be saved. According to the different rotor structure, three-phase asynchronous motor can be divided into the cage and winding type two kinds. The cage rotor asynchronous motor has simple structure, reliable operation, light weight, cheap price, widely used, its main drawback is that control difficult. Wound rotor three-phase asynchronous motor rotor and stator is also set up a three-phase winding and through the slip ring, brush with external resistor connection. Adjust the rheostat resistance can improve the starting

performance of the motor and to adjust the speed of the motor. 

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