Question

Which of the following statements are correct regarding the torque equation in non salient pole machines, Te = -(P/2)(μoΠrl/g)(FsFr)sinλNm?

(a) stator experiences less torque than rotor and in opposite directions

(b) rotor experiences less torque than stator and in same directions

(c) stator and rotor experiences equal and opposite torques

(d) stator and rotor experiences equal torque and in same directions

This question was addressed to me by my college director while I was bunking the class.

My question comes from Production of Torque in Non-Salient Pole Machines topic in chapter Synchronous Machines of Electrical Machines

Answer 1

Correct option is (c) stator and rotor experiences equal and opposite torques

The explanation: Both stator and rotor experience equal and opposite torques.