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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