DOUBLE-WINDING STATOR WITH C m=3-PHASE 2p=8·k- AND 2p=10·k-POLE LAP WINDINGS IN z=144·k SLOTS Russian patent published in 2009 - IPC H02K3/04 H02K17/12 

FIELD: electricity.

SUBSTANCE: present invention pertains to electric machine engineering. The invention seeks to simplify manufacturing and increase use of active materials, while reducing input of insulating materials and coefficient of differential scattering σ_d% m=3-phase 2p₁=8·k and 2p₂=10·k - pole lap windings in z=144·k slots. The essence of the invention lies in that, for the double winding stator of an asynchronous motor with m=3 phase 2p₁=8·k and 2p₂=10·k-pole lap windings in z=144·k slots, each of which is made symmetrical with an m=6-zone from equally spaced coils, put into slots in two layers: from K=z coils with numbers from 1K to (z)K, the 2p₁ pole winding relates to K/2 coils with odd numbers 1K, 3K,…, (z-1)K, containing w_k1 turns and connected into 6p₁ coil semi-groups with q'₁=3 neighbouring coils in each. The 2p₂ pole winding relates to K/2 coils with even numbers 2K, 4K,…,(z)K, containing w_k2 turns and connected into 6p₂ coil semi-groups given q'₂=12/5, with grouping their coils in a 3 2 3 2 2 row, which repeats six times. The spacing of all coils in the slots equals y_k=15, where k=1, 2 when q'₁=z/12p₁ and q'₂=z/12p₂.

EFFECT: easier manufacturing and increases use of active materials, while reducing input of insulating materials and coefficient of differential scattering.

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