Why does a rotor in a three-phase induction motor rotate in the same direction as that of the applied voltage and magnetic flux?
Why does a rotor in a three-phase induction motor rotate in the same direction as that of the applied voltage and magnetic flux?
Answer:
The rotor of a three-phase induction motor rotates in the same direction as that of the applied voltage and magnetic flux due to the principle of electromagnetic induction.
When a three-phase power supply is given to the stator winding, it produces a rotating magnetic field around the conductor in a clockwise direction ¹.
This magnetic field induces a magnetic flux in the rotor bar through electromagnetic induction ¹.
The rotor then receives magnetomotive forces from this flux, which builds up rotating torque and causes the rotor to rotate in the same direction as the magnetic flux ¹.
