3-Phase Induction Motors
Three-phase AC power is used to create a rotating magnetic field in an induction motor. Specifically, each phase is connected to separate windings arranged around the stator of the motor. Phase A produces a magnetic field shown in red, Phase B generates the green magnetic field, Phase C generates the blue magnetic field.
Each phase’s magnetic field is generated with a 120-degree phase difference relative to the others, ensuring a continuous and smooth rotation of the resultant magnetic field. The resultant magnetic field is shown in purple. This field moves continuously around the stator, inducing currents in the rotor and creating torque, thus driving the motor.
