| 摘要 |
FIELD: electrical engineering. ^ SUBSTANCE: proposed stator winding has twelve pairs of concentrically disposed external single-layer coils and internal double layer coils in each pair, first phase including pairs 1, 4, 7, 10, second phase, pairs 3, 6, 9, 12, and third phase, pairs 5, 8, 11, 2 ; single- and double-layer coils of different pairs are differentially connected in each phase. First phase leads are taken from starting leads of single-layer coils of pairs 1, 3, 5. Second phase leads are formed from interconnected starting leads of double-layer coils and finishing leads of single-layer coils of pairs 2, 10, 12. Finishing leads of double-layer coils of pairs 1, 3, 5 form neutral point. Winding uses star or star-star connection and is connected to load and to field capacitors for different current frequency. Such design of winding makes it possible to build off-line power supplies for different current frequency at constant speed of drive motor. ^ EFFECT: enlarged functional capabilities. ^ 1 cl, 4 dwg |
