FIELD: electrical engineering.;SUBSTANCE: proposed fractional-slot (q = 2.5) double-layer pole-changing winding whose phase leads are connected in Y/YY or Δ/YY has Ncg = 6p2 coil groups placed in z = 6p2q slots with slot pitch ys = z/2p1, each phase being divided into two parts with odd-numbered groups in one part, even-numbered ones, in other part, and additional leads, brought out of midpoints in each phase. With 2p1/2p2 = 8/4, 12/6, and 16/8, odd-numbered concentric three-coil groups have coil pitches ysi = 6, 4, 2 at turn number (1 - x)wc, (1 + x)wc (1 - x)wc, and even-numbered double-coil groups have coil pitch ysi = 5, 3 at turn number wc, (1 + x)wc, where z = 30 for 2p1/2p2 = 8/4, z = 45 for 2p1/2p2 = 12/6, z = 60 for 2p1/2p2 = 16/8; 2wc is turn number per slot at x = 0.54.;EFFECT: equalized internal voltages and resistances among large and small coil groups of proposed winding.;1 cl, 3 dwg
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机译：领域：电气工程;实体：拟议的分数槽（q = 2.5）双层变极绕组，其相线以Y / YY或Δ/ YY连接，N cg = 6p 2 个线圈组放置在z = 6p 2 q个槽中，槽间距为y s = z / 2p 1 ，每个阶段均分为两部分，其中一个部分为奇数组，另一部分为偶数组，并在每个阶段从中点引出额外的引线。当2p 1 / 2p 2 = 8 / 4、12 / 6和16/8时，奇数同心三线圈组的线圈间距y si = 6，4，2（1-x）w c ，（1 + x）w c （1-x）w c ，偶数双线圈组的线圈间距y si = 5，匝数w c ，（1 + x）w c ，其中2p 1 / 2p 2 = 8/4的z = 30，2p 1 的z = 45 > / 2p 2 = 12/6，对于2p 1 / 2p 2 = 16/8，z = 60; 2w c 是x = 0.54时每个插槽的匝数;效果：拟议绕组的大小线圈组之间的内部电压和电阻相等; 1 cl，3 dwg
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