ELECTRICAL-MACHINE THREE-PHASE DOUBLE-LAYER WINDING WITH 2p=10, z=96 (q=16/5) Russian patent published in 2006 - IPC H02P7/00 

FIELD: electrical and electromechanical engineering; three-phase induction and synchronous machines.

SUBSTANCE: proposed three-phase double-layer lap winding with 2p = 10 poles in z= 96 slots and coils grouped in row 4 3 3 3 3 repeated six times is made of 6p = 30 coil groups numbered 1G through 30G at mean slot pitch y_s = 8. Novelty is that in order to reduce differential dissipation σ_d of electrical-machine m' = six-band fractional-pitch (q = 16/5) lap winding, coil group 1G out of first-grouping coil groups 1G through 5G has turn numbers (1 - x)w_c in first and fourth coils and coil groups 3G, 4G have turn numbers (1 + x)w_c in intermediate coil at w_c turns in remaining coil groups and at turn number 2w_c in each slot. Mentioned distribution of coils with unequal turn number is repeated in each next grouping at index of inequality of phase groups x = 0.24.

EFFECT: reduced differential dissipation in electrical-machine fractional-pitch lap winding.

1 cl, 3 dwg