In Figure 12.2, it has been observed that a revolving field is set up in the stator of a three-phase induction motor, when three-phase supply is given to its winding and the direction of rotation depends upon the supply sequence.
In Figure 12.3, it has been observed that rotor of a three-phase induction motor rotates in the same direction as that of the revolving field.
The direction of rotation of the revolving field or that of the rotor can be reversed if the sequence of supply is reversed. The supply sequence can be reversed by interchanging the connections of any two supply leads at the stator terminals.
Hence, the direction of rotation of a three-phase induction motor can be reversed by interchanging the connections of any two supply leads at the stator terminals.
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