27 Drawing Of Rotating Magnetic Field In 3 Phase Induction Motor Diagram Téléchargement

An induction motor s rotor can be either wound type or squirrel cage type. A rotating magnetic field is a magnetic field that has moving polarities in which its opposite poles rotate about a central point or axis.

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groupe Drawing of rotating magnetic field in 3 phase induction motor diagram!!!

When a 3 phase winding is energized from a 3 phase supply a rotating magnetic field is produced. Before we look at how the rotating field is produced we should be clear what it actually is. An induction motor or asynchronous motor is an ac electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding. An induction motor can therefore be made without electrical connections to the rotor.

This video shows how a rotating magnetic field is produced in the stator of a three phase induction motor. This field is such that its poles do no remain in a fixed position on the stator but go on shifting their positions around the stator. We arrange the three phase winding in such a manner in the slots that they produce one rotating magnetic field when we switch on the three phase ac supply source. Because both the rotor and stator iron surfaces are smooth apart from the regular slotting and are separated by a small air gap the flux produced by the stator windings crosses the air gap radially.

Whenever the ac supply is connected to the stator windings line currents i r i y and i b start flowing. Ideally the rotation changes direction at a constant angular rate this is a key principle in the operation of the alternating current motor. Sourabh sharma hindi channel 12 874 views. The induction motor rotates due to the rotating magnetic field in 3 phase induction motor which is produced by the stator winding in the air gap between in the stator and the rotor the stator has a three phase stationary winding which can be either star connected or delta connected.

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