The three winding (tap winding) motor which has been the object of the 1975-1976 IEEE single phase motor calculation and test project has been analysed with the help of the method presented in a companion paper. Several levels of hypothesis have been successively considered, and their effectiveness has been tested on the purely single phase operation of the machine with only one winding excited. Then the complete motor has been studied for high speed and low speed operations. The paper shows the importance of some parameters such as space harmonics, skin effect, slot fringing, iron reluctance.
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Perera et al. (1982) studied this question.
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