THREE-PHASED TWO-LAYER SPLIT (q=5,25) WINDING OF ELECTRIC MACHINES Russian patent published in 2006 - IPC H02K3/28 H02K3/04 

FIELD: electric engineering, electro-mechanical engineering, possible use for three-phased asynchronous and synchronous electric machines.

SUBSTANCE: three-phased split (q=5,25) winding of electric machines is made 2p=8c-polar with grouping 6 5 5 5 in z=63c grooves of 12c coil groups with numbers 1Γ...12(c)Γ with concentric coils with their average step by grooves y_c=8, integer number c=1,2,..., numbers i', i=1...6 coils in groups starting from outer one, 2w_c coils of groove. In acc to invention, in groups of 1Γ...4Γ pf first grouping, six-coiled group 1Γ has coil steps y_m'=13-2(i'-1) with coil numbers (1-x)w_c in i=1 and 6, and five-coil ones - y'_m'=12-2(i'-1) with coil numbers (1+x)w_c in i'=3 of group 3Γ for w_c coils in remaining groups coils, while said distribution of not even-coiled coils is repeated in each following grouping, where x=0,47.

EFFECT: decreased differential dissipation σ_D of symmetric m'=3-zoned split (q=z/3p=5,25) winding.

3 dwg