Calculation of field and reactance in enclosed-slot induction motor

In this paper a method of calculating the reactance of the slot tip of an induction motor with enclosed slots is examined. This paper presents a method of deriving the reactance from the magnetic energy stored at the portion of the rotor surface. Explanation is made here in the order as follows: Method of deriving the reactance from stored and accumulated magnetic energy, Calculation of the flux distribution on the rotor surface, Examples of calculations on the reactance of the slot tip, Results of calculation and measurement on characteristics of the tested motor. The method of deriving the reactance from the magnetic energy stored in the surface region of the core is considered to be utilizable widely in the technology of magnetic circuits involving non-linear magnetic characteristics.