Question

What is the relation between pole pitch and the magnetizing reactance?

(a) magnetizing reactance is directly proportional to the square of the pole pitch

(b) magnetizing reactance is directly proportional to the pole pitch

(c) magnetizing reactance is indirectly proportional to the pole pitch

(d) magnetizing reactance is indirectly proportional to the square of the pole pitch

I had been asked this question in an online interview.

Origin of the question is Parameters topic in division Design of Single Phase Induction Motor of Design of Electrical Machines

Answer 1

The correct option is (b) magnetizing reactance is directly proportional to the pole pitch

The best explanation: The magnetizing reactance is one of the parameters in the leakage reactance calculation. The magnetizing reactance is directly proportional to the pole pitch.