Polyphase Induction Machine with a Slitted Ferromagnetic Rotor: II - Analysis

This paper attempts the analysis of the polyphase induction machine with a slitted ferromagnetic rotor using Maxwell´s field equations and concepts of equivalent permeabilities and resistivities. The analysis satisfactorily accounts for 1) physical dimensions of the slits and their number, 2) the provision of a nonmagnetic conductor, like copper in the slits, and the nature of rotor end terminations.