| 摘要 |
FIELD: electric engineering and electric-mechanical industry, can be implemented in three-phase two-speed and multi-speed asynchronous engines with short-circuit rotor. ^ SUBSTANCE: in three-phase two-layer split (q=1,5) pole-switching in relation 2p1/2p2=2/1 winding with connection of phases in acc to circuits Y/YY or Delta/YY, made in z=6p2q grooves from Ncg=6p2 coil groups with coils step by grooves yg≈z/2p1 with splitting of each phase on two portions with non-even groups in one portion, even groups in other portion and with a os from middle points in each phase, in acc to invention, at q=1,5 concentric groups, non-even and two-coiled, have coil steps ygi=3,1 with coil numbers wc and (1-x)wc, and even one-coiled groups - yg=2 with number of coils (1+x)wc, where z=18 for 2p1/2p2=8/4, z=36 for 2p1/2p2=16/8, 2wc - number of coils for each groove for value of x=0,57. ^ EFFECT: evened out EMF and resistances of greater and lesser coil groups of m= 3 -phase two-layer split winding for q = z/6p2 = 1,5, to allow its manufacturing as pole-switching symmetric winding with pole numbers satisfying condition 2p1/2p2=2/1. ^ 5 dwg |
