3 phase & induction motor Quiz Practice Quiz | 3…

To convert electrical energy into mechanical energy. — Induction motors use rotating magnetic fields to produce torque and turn a rotor.

The number of poles and the supply frequency. — Synchronous speed (Ns) = (120 * frequency) / number of poles.

The difference between synchronous speed and rotor speed. — Slip is the percentage difference in speed between the rotating field & the rotor.

Commutator — Induction motors do not have commutators; they are a feature of DC motors.

By the phase difference in the three-phase AC supply. — The phase difference of 120 degrees in the three-phase supply creates a rotating field.

Question 1 of 5

What is the primary function of a 3-phase induction motor?

Induction motors use rotating magnetic fields to produce torque and turn a rotor.

Question 2 of 5

Synchronous speed (Ns) = (120 * frequency) / number of poles.

Question 3 of 5

Slip is the percentage difference in speed between the rotating field & the rotor.

Question 4 of 5

Induction motors do not have commutators; they are a feature of DC motors.

Question 5 of 5

The phase difference of 120 degrees in the three-phase supply creates a rotating field.