Question

What is the formula of the saturation factor?

(a) saturation factor = total mmf required for magnetic circuit * mmf required for air gap

(b) saturation factor = total mmf required for magnetic circuit – mmf required for air gap

(c) saturation factor = total mmf required for magnetic circuit / mmf required for air gap

(d) saturation factor = total mmf required for magnetic circuit + mmf required for air gap

This question was addressed to me in unit test.

My question comes from Parameters topic in division Design of Single Phase Induction Motor of Design of Electrical Machines

Answer 1

Right choice is (c) saturation factor = total mmf required for magnetic circuit / mmf required for air gap

Explanation: The total mmf required for the magnetic circuit and the mmf required for air gap is calculated. On substitution of the values the saturation factor is calculated.