JOINED WINDING FOR ELECTRIC MACHINE Russian patent published in 1997 - IPC

FIELD: windings of joined alternating current machines with two poles of different polarity. SUBSTANCE: winding provides two types f poles 4 and 2 respectively. It has two layers, if number of poles of three-phase winding is four then it has terminals C1, C2, C3 Z in slots of K = 24 distributed coil groups which serial numbers ranges from 1 to 24. In first phase starting terminals of groups 1, 7 and ending terminals of groups 4, 10 are connected to phase terminal C1. Each of these groups is connected in series to group which is displaced by K/2 = 12 groups; numbers of groups for other phases go in alternating order in intervals of two groups for phase C2 and in four groups for phase C3. EFFECT: increased functional capabilities due to introduction of two additional poles if pole number is equal to 2. 2 cl, 3 dwg