Motors accompany in our daily production life, stator and rotor is an important part of the motor, but many friends do not quite understand the definition of the two and the difference, Vacuz to introduce it to you! Hope it can help everyone!

Stator and rotor are important components of the motor. The difference between rotor and stator is that the rotor is the rotating part of the motor and the stator is the static part of the motor.

Definition of stator.

The stator is the static part of the motor. The main function of the stator is to produce a rotating magnetic field. The stator frame, stator core and stator winding are the three parts of the stator, the stator core supports and protects the three-phase winding of the stator, and the high-grade silicon steel stamping makes the stator an iron core.

Definition of rotor.

The rotating part of the motor is called the rotor. The rotor core and rotor winding are part of the rotor, and the rotor winding is excited by the DC power supply. The core of the rotor is made of a cylindrical iron core with a semicircular slot on the outer surface of the core, and a copper or aluminum conductor is placed on the slot with the help of an aluminum or copper ring, and the wire is shorted at both ends.

The stator generates a rotating magnetic field from a three-phase power supply, and if the rotor is at rest, electromagnetic forces will be induced in the rotor due to electromagnetic induction. Due to the variable magnetic field, electromagnetic induction induces potential in the current-carrying conductor and current is induced in the rotor, resulting in rotor motion.

Main differences between stator and rotor.

The stator is the fixed part of the machine and the rotor is the movable part of the machine. The stator core, stator winding and outer frame are the three parts of the stator, while the rotor core and excitation winding are part of the rotor. The stator winding provides three-phase power and the DC power excites the rotor. The winding arrangement of the stator is more complex than that of the rotor. The stator winding is highly insulated and it induces high voltage, while the rotor has low insulation. Compared to the excitation winding, the stator winding is large in size and can carry high currents. Since the stator is fixed, the cooling system of the stator is better than that of the rotor. Rotor friction losses are low compared to the stator because of the light weight of the rotor.

The static part of the motor is known as the stator and the rotating part of the machine is called the rotor. The rotor is placed in the stator core and the three phases are supplied to the stator windings to produce a rotating magnetic field in which the rotor rotates. As a result, an electric potential is generated due to the interaction of the rotor and stator magnetic fields.

The above is the definition of stator and rotor and the difference, I believe that many friends have a preliminary understanding, I hope these tips can help you!

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