Analysis of the influence of the assumption of equivalent saturation on starting currents in induction motors

Field analysis has been computed for a four-speed induction motor which has two separate double-layered windings, with each slot being occupied by coi ls belonging to each winding. The working conditions of this motor differ f rom standard motors, which makes accurate predictions of performance charac teristics using a classical approach difficult. Both numerical and analytic al analyses were used for the no-load and the short-circuit of the four-spe ed motor. Calculated results were compared with the experimental data.