3/1-PHASE COMBINED WINDING OF ELECTRIC MACHINE Russian patent published in 1995 - IPC

FIELD: electric machine engineering. SUBSTANCE: 3/1-phase combined winding of electric machine is two-layer winding with number of poles P_b/P_a=1/6 dropped in Z slots with slot pitch y_s=5Z/12 and connected in two parallel three-phase stars. Winding has three-phase leads-out C1, C2, C3 for number of poles P_b and additional leads- out И₁- И₂ for number of poles P_a=6= 6 from their zero points. Winding includes 36 coil groups. Coil groups in first and second stars of phases are connected in series for phase C1 1,3,5,2,4, 24 and 19, -21, -23, -20, 6; for phase C2 13,15,17,14,16, 36 and -31, -33, -35, -32, -34, 18; for phase C3 25,27,29,26,28, 12 and 7, 9, 11, 8, 10, 30. In phase C1 finishes of groups 1 and 21, 3 and 23, 5 and 20, in phase C2 finishes of groups 13 and 33, 15 and 35, 17 and 32 and in phase C3 finishes of groups 25 and 9, 27 and 11, 29 and 8 are tied up together, where Z/36 is integral number and minus sign in front of group number means that it is connected in opposition. EFFECT: expanded application field, improved operational characteristics. 3 dwg