TWELVE-TO-TEN POLE CHANGEABLE WINDING Russian patent published in 2003 - IPC

FIELD: electrical engineering; new variable-speed motors. SUBSTANCE: winding has 36 coil groups with coils alternating in groups as follows: 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, 1K, 2K, 3K, 2K, 2K, 2K, 3K, 1K, 1K, 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, where K is integer number; finish of coil group 1 is connected to finish of coil group 4, start of group 4, to start of group 7, finish of group 7, to finish of group 10, start of group 10, to start of group 13, finish of group 13, to finish of group 16, start of group 19, to start of group 22, finish of group 22, to finish of group 25, start of group 25, to start of group 28, finish of group 28, to finish of group 31, start of group 31, to start of group 34, start of group 2, to start of group 5, finish of group 5, to finish of group 9, start of group 9, to start of group 11, finish of group 11, to finish of group 14, start of group 14, to start of group 18, finish of group 20, to finish of group 23, start of group 23, to start of group 27, finish of group 27, to finish of group 29, start of group 29, to start of group 32, finish of group 32, to finish of group 36, start of group 35, to start of group 3, finish of group 3, to finish of group 6, start of group 6, to start of group 8, finish of group 8, to finish of group 12, start of group 12, to start of group 15, finish of group 17, to finish of group 21, start of group 21, to start of group 24, finish of group 24, to finish of group 26, start of group 26, to start of group 30, finish of group 30, to finish of group 33; terminal lead 37 is formed by integrated finish of group 35 and finish of group 36, terminal lead 38, by integrated finishes of groups 1 and 33, terminal lead 39, by integrated finishes of groups 2 and 34, terminal lead 40, by integrated start of group 17 and finish of group 15, terminal lead 41, by integrated finish of group 18 and start of group 20, terminal lead 42, by integrated finish of group 19 and start of group 16. Applying voltage to terminal leads 37, 38, and 39 changes over to ten-pole circuit arrangement. If voltage is applied to terminal leads 40, 41, 42 and terminal leads 37, 38, 39 are integrated, we shall have 12-pole connection. EFFECT: extended combination of changeable number of winding poles. 1 cl, 5 dwg