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    Question

    AC servomotor is basically a _______.

    A.

    Single-phase induction motor

    B.

    Three-phase induction motor

    C.

    Universal motor

    D.

    Two-phase induction motor

    Correct option is D

    · A.C servomotor is basically a 2-phase induction motor.
    · Servomotor is a developed form of single-phase squirrel cage rotor type induction motor.
    · There are two windings on its stator, R and C, reference and control respectively.
    · Its magnetic fields are at right angles to each other.
    · In this, single phase AC in the reference winding with series capacitor.
    · Control voltage is given. Which is called AC. Is obtained from the amplifier.

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