Marine Electrical Systems USCG Question #36 (Set 2)

As shown in the illustrated wound-rotor induction motor how is the direction of rotation of the motor reversed? Illustration EL-0148 Illustration EL-0148: the U.S. Coast Guard has not released this illustration.

Official USCG Answer & Rule Citation

Correct Answer: Option C — Any two of the "T1, T2, and T3" leads are reversed only.

Reversing any two of the three main stator supply leads (T1, T2, and T3) reverses the phase rotation of the stator's magnetic field, directly reversing the direction of rotation of a standard induction motor.

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