JPS6427213A - Induction electric machine winding - Google Patents

Abstract

PURPOSE:To obtain an induction electric machine winding in which current branches of 4 strands are uniform by providing at least three crossover tracks in which the dislocations of the strands are so conducted that two strands aligned at the same radial positions are aligned in the same axial direction in adjacent sections. CONSTITUTION:An induction electric machine winding includes 8 sections (S1-S8), the dislocations of strands are not conducted at 4 crossover tracks W1-W4 of radial inside, and the dislocations of the strands are executed at 3 crossover tracks Z1-Z3 of radial outside. It is so dislocated that the strands a and b or c and d aligned at the same radial positions in the section S2 are aligned at the same axial position in the section S3 at the crossover tracks Z1 from the section S2 to the section S3. The crossover track Z2 from the section S4 to the section S5 and the crossover track Z3 from the section S6 to the section S7 are similarly dislocated. The outermost side conductor array a-c-d-b of the section S1 is circulated one cycle as the outermost side conductor array c-d-b-a of the section 8 by way of this dislocation. Thus, a compact induction electric machine in which its cooler is reduced with low loss can be obtained.