THREE-PHASE RATIONAL WINDING OF ARMATURE Russian patent published in 1995 - IPC

FIELD: electric engineering. SUBSTANCE: winding has two layers, number of winding poles is P. It is positioned in Z slots. Slots are divided by width into pairs of equal elementary slots. Winding has 6p groups of coils which are arranged in row as 2111. This groups are repeated 3p/2 times Groups with number 1G + 4k has two coaxial coils which turns are spaced by distance Y_es 4,2 in elementary slots and number of turns is W_к and (1-X) W_k. Single coil is used for other groups, their distance is y_es=3 and number of turns is W_k for groups with numbers 2G + 4k and 4G+ 4k, and (1+X) W_к for groups with numbers 3G + 4k. Coil groups in first, second and third phases have numbers 1G + 3k, 5G + 3k, 9G + 3k correspondingly. These groups are connected in series with opposing connection of even groups against odd ones. p≥ 4 is multiple of four, k 0, 1, (2p-1), 2 W_k is number of turns in elementary slot, value of X belongs to range 0,45≅ X ≅ 0,55, average value of X is 0,5. EFFECT: increased functional capabilities. 6 dwg