What is stator and rotor of induction motor?

The stator is in the stationary electrical component. … The rotor is the rotating electrical component. It also consists of a group of electro-magnets arranged around a cylinder, with the poles facing toward the stator poles. The rotor is located inside the stator and is mounted on the AC motor’s shaft.

What is stator in induction motor?

The stator of an induction motor consists of poles carrying supply current to induce a magnetic field that penetrates the rotor. To optimize the distribution of the magnetic field, windings are distributed in slots around the stator, with the magnetic field having the same number of north and south poles.

What is rotor in induction motor?

Rotor as the name suggests it is a rotating part of an electrical machine, in which current is induced by transformer action from rotating magnetic field. Induction motor rotor is of two types: Squirrel Cage Rotor. Wound Type Rotor or Slip Ring Type Rotor.

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What is a stator made up of?

The stator frame consists of laminations of silicon steel, usually with a thickness of about 0.5 millimetre. Lamination is necessary since a voltage is induced along the axial length of the steel as well as in the stator conductors. The laminations are insulated from each other usually by a varnish layer.

What is the use of stator in motor?

In an electric motor, the stator provides a rotating magnetic field that drives the rotating armature; in a generator, the stator converts the rotating magnetic field to electric current. In fluid powered devices, the stator guides the flow of fluid to or from the rotating part of the system.

What is difference between stator and rotor?

The stator then is the stationary part of the AC motor. The rotor is the rotating electrical component. It also consists of a group of electro-magnets arranged around a cylinder, with the poles facing toward the stator poles. The rotor is located inside the stator and is mounted on the AC motor’s shaft.

What is the stator in a DC motor?

The stator is the stationary part of a motor, while the armature rotates. In a DC motor, the stator provides a rotating magnetic field that drives the armature to rotate.

Why rotor is short circuited?

Shorting of rotor bars in form of squirrel cage cause the suitable low impedance path for rotor induced currents. … When the rotor is stationary, the revolving magnetic field cuts the short-circuited secondary conductors at synchronous speed and induces in them line-frequency currents.

What type of rotor is most commonly used in an induction motor?

cage rotor

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How many types of rotor are there?

There are two types of induction motor rotors: Squirrel-cage rotor or simply cage rotor. Phase wound or wound rotors. The motors that use this type of rotor are known as Slip-ring rotors.

How does a rotor and stator work?

Operating principle. In a three-phase induction machine, alternating current supplied to the stator windings energizes it to create a rotating magnetic flux. The flux generates a magnetic field in the air gap between the stator and the rotor and induces a voltage which produces current through the rotor bars.

What are different parts of stator?

The stator frame, the stator core and stator winding are the parts of the stator. The frame supports the core of the stator and protects their three-phase winding. The stator core carries the rotating magnetic field which induces because of the three-phase supply. The rotor is situated inside the core of the stator.

What is a stator core?

The stator core uses an isolated thin silicon steel plate that consists of oxide and varnish. Therefore, the hysteresis loss and eddy current loss in the inner magnetic material can be minimized. In addition, the isolated coil overlapped is installed in the inner slot of the core.

What is the difference between armature and rotor?

The armature is the winding to which the load is connected. In small generators, the field windings are often on the stator, and the armature windings are on the rotor. Most large machines, however, have a rotating field and a stationary armature. … Thus, the armature is the stator and the field is the rotor.

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What are the types of motor winding?

Types of Motor Windings

  • Stator Winding. The slot on stator core of the three-phase motor winding carries stator winding. …
  • Rotor Winding. In a motor, the rotating part is known as the rotor. …
  • Lap Winding. Lap winding is the one kind of armature winding. …
  • Wave Winding.

How are stator windings connected?

induction motors

A three-phase set of stator windings is inserted in slots in the stator iron. These windings may be connected either in a wye configuration, normally without external connection to the neutral point, or in a delta configuration. The rotor consists of a cylindrical iron core with conductors placed in…

Motors