STATOR WINDING FOR 8/4 POLES Russian patent published in 2009 - IPC H02K3/28 H02K17/14 

FIELD: electricity.

SUBSTANCE: invention relates to electrical engineering and may be used for production of multi-speed induction motors. The stator winding consists of 18 winding groups with their phases being connected against Y-Δ/Δ diagram, when the end (1) of winding group is connected to the start (10) of the winding group, end (3) with start (12), end (5) - with start (14), end (7) - with start (16), end (9) - with start (18), end (11) with start (2), end (13) - with start (4), end (15) - with start (6), end (17) - with start (8). Separately the ends (2), (4), (6) of winding groups are combined together, as well as the ends (8, 10, 12) of winding groups, the ends (14, 16, 18) of winding groups. The terminals are taken from the starts (1, 7) and (13) of winding groups from the combined start (3) and (5), from combined start (9) and (11) and from the combined start (14) and (17) of winding groups.

EFFECT: improved conditions of motor startup.

7 dwg