COMBINED ROTOR WINDING Russian patent published in 1995 - IPC

FIELD: electromechanical engineering. SUBSTANCE: rotor has combined double-layer winding with pole pairs p₁/p₂. Winding is placed in 48 slots. Short-circuited winding is for p₁ and three-phase for p₂. Three-phase winding leads are star- or delta-connected. Winding leads P1, P2, P3 are connected to slip rings. p₂=1, p₁ may be of 3, 5, 7 value. Number of coils is 24. Coils numbered 1K, 2K, 3K, 4K-13K, 14K, 15K, 16K are interconnected in series and connected to lead P1 of first phase; slot pitch is y; coils numbered 1K′, 2K′, 3K′, 4K′, -13K′, -14K′, -15K′, -16K′ are cumulatively connected in parallel with each respective coil out of them; slot pitch is y′.. Coils of phase P2 alternate relative to phase P1 with interval of eight coils and those of phase P3, sixteen coils. EFFECT: improved design. 7 cl, 1 tbl