FIELD: electrical engineering; dual-speed motors. SUBSTANCE: motor winding whose slot number is a multiple of 36 has 18 coil groups where coil number is alternating as follows: 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, 1K, 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, 1K, where K is positive integer number; starting lead 1 of coil group is connected to its finishing lead 4; starting lead 4, to finishing lead 7; starting lead 10, to starting lead 13; finishing lead 13, to finishing lead 16; starting lead 2, to starting lead 5; finishing lead 5, to finishing lead 9; finishing lead 11, to finishing lead 14; starting lead 14, to starting lead 18; starting lead 17, to starting lead 3; finishing lead 3, to finishing lead 6; finishing lead 8, to finishing lead 12; starting lead 12, to starting lead 15. Finishing lead 17, starting lead 1, and finishing lead 2 of coil groups function as terminal leads 19, 20, and 21, respectively; interconnected starting leads 6 and 8 of coil groups form terminal lead 22; finishing leads 7 and 8, terminal lead 23; starting leads 9 and 11, terminal 24. Finishing lead 18, starting lead 16, and finishing lead 15 of coil groups are interconnected in star. EFFECT: improved performance characteristics of variable-speed motors. 5 dwg
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Authors
Dates
2001-07-27—Published
2000-03-20—Filed