| 摘要 |
FIELD: electric machinery industry. ^ SUBSTANCE: three-phase double-layered electric machine winding in z=102.c slots with 2=26.± poles with number of slots per pole and phase q=z/3p=34/13 is composed of 3.± coil groups with numbers from 1G to 39G.± and coil grouping as 3323323233232 sequence repeated 3.c times: In 1G...13G groups of the first grouping concentric coils have slot pitches of si=6, 4, 2 with (l-x)wK, (l+x) wK, (l-x)wK turns for three-coil groups and y'si=5, 3 with wK, (l+x)wK turns for two-coil groups at =0.56, where ±=1, 2, 3, ...; 2wK is the number of turns in those slots that are completely filled with winding. This distribution of coils with different number of turns is repeated in every next grouping. ^ EFFECT: lowering of differential scattering factor sigmad of asymmetric t'=3-zone fractional-slot (q=34/13) lap winding of electric machinery. ^ 4 dwg |
