FIELD: electromechanical engineering; synchronous and induction machines. SUBSTANCE: according to first version, ac machine has rotor and stator with m-phase winding built up of two parts relatively shifted through 90 electrical degrees and connected in series and identically in all phases, where m = 1, 2, 3 ... . EFFECT: simplified design, reduced size and mass, improved power characteristics, enlarged functional capabilities. 4 cl, 4 dwg
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