| 摘要 |
FIELD: electric engineering and electro-mechanical industry, possible implementation for construction of three-phase asynchronous and synchronous electric machines. ^ SUBSTANCE: three-phase split (q=5,75) winding of electric machines is made with grouping 6 6 6 5, two-layered 2p=8c-polar in z=69c grooves of 12c coil groups with numbers 1Gamma...12(c)Gamma with concentric coils with their average grooves step yc=9, integer value coefficient=1,2,...,numbers i',i=1...6 coils in groups starting from outer one, 2wc for each groove. In accordance to invention, in groups 1Gamma...4Gamma of first group six-coil groups have coil steps ygi=14-2(i-1) with coil numbers (1-x)wc in i=6 of groups 1Gamma,3Gamma and in i=1 of group 2Gamma, (1+x)wc in i=4 of group 2Gamma, and five-coil 4Gamma - y'gi=13-2(i'-1) with coil numbers (1+x)wc in i'=3 and 4 for wc coils in remaining coils of groups, while aforementioned distribution of not even-coiled coils is repeated in each following grouping, where x=0,47. ^ EFFECT: decreased differential dissipation sigmad of m'3=3-zone split (q=z/3p=5,75) winding. ^ 3 dwg |
