| 摘要 |
FIELD: electric engineering and electro-mechanical industry, can be implemented in three-phase asynchronous and synchronous electric machines. ^ SUBSTANCE: three-phase split (q=2,75) winding of electric machines is made with grouping 3 3 3 2 two-layer 2p=8c-polar in z=33c grooves of 12c coil groups with numbers 1Gamma...12(c)Gamma with concentric coils with their average step of grooves yc = 4, integer number c = 1, 2, ..., numbers i', i = 1...3 coils in groups, starting from external one, 2wc coils of each groove. Also, in accordance to invention, in groups 1Gamma...4Gamma of first group three-coil groups have coil steps ypii = 6 - 2(i - 1) with coil numbers (1 - x)wc in i = 3 of groups 1Gamma, 31 and in i = 1 group 2Gamma, (1+x)wc in i=2 group 2Gamma, and two-coil 4Gamma-y'pii = 5-2 (i'-1) with coil numbers (1+x)wc each for wc coils in remaining coils of groups, while said distribution of not even-coiled coils is repeated in each following group, where x=0,48. ^ EFFECT: decreased differential dissipation sigmad of m' = three-zone split (q=z/3p=2,75) winding. ^ 3 dwg |
