MULTIFUNCTION STATOR WINDING OF INDUCTION GENERATOR Russian patent published in 2005 - IPC

FIELD: electromechanical engineering.

SUBSTANCE: proposed stator winding has six concentrically disposed pairs of different-pitch coil groups with single-layer coils of external groups and double-layer ones of internal groups. Coil groups of pairs 1 and 4 are included in first phase, those of pairs 3 and 6, in second phase, and coil groups of pairs 5 and 2, in third phase. Different-pitch coil groups of different pairs are differentially connected in each phase. First phase leads are taken from finishing leads of external coil groups of pairs 1, 3, 5. Second phase leads are formed by integrated starting leads of external coil groups and from finishing leads of internal coil groups of pairs 4, 6, 2. Connected to starting leads of internal coil groups of pairs 1,3, 5 is additional eight-pole low-voltage winding; field capacitors and main load are connected to first and second phase leads. Such design of stator winding makes it possible to build off-line power supplies for different current frequencies at different voltages around capacitor-excited induction generators with drive motor rotating at fixed speed.

EFFECT: enlarged functional capabilities of winding.

1 cl, 4 dwg