ELECTRICAL MACHINE Russian patent published in 1999 - IPC

FIELD: electrical engineering; squirrel- cage induction machines. SUBSTANCE: split-phase induction machine built up of stator assembled of phase magnetic cores and squirrel-cage rotor has its rotor winding bars transposed lengthwise into four sections. Stator phase cores include central one and each of them is wound; four sections of rotor winding bars form partial turns; each pair of internal turns is placed around pair of unlike-polarity teeth of adjacent stacks of rotor. EFFECT: reduced mass and size of machine and improved waveform of its field. 3 cl, 5 dwg