Patent ID: 7291954

Claim:
A dynamoelectric machine comprising: a stator core having a plurality of slots extending axially; and a first three-phase wye-delta hybrid winding and a second three-phase wye-delta hybrid winding installed in said slots, said first three-phase wye-delta hybrid winding having: a first delta-connected portion in which a first delta U winding portion, a first delta V winding portion, and a first delta W winding portion are connected in a delta shape; and a second wye U winding portion, a second wye V winding portion, and a second wye W winding portion each connected to said first delta-connected portion in a Y (wye) shape, said second three-phase wye-delta hybrid winding having: a second delta-connected portion in which a second delta U winding portion, a second delta V winding portion, and a second delta W winding portion are connected in a delta shape; and a first wye U winding portion, a first wye V winding portion, and a first wye W winding portion each connected to said second delta-connected portion in a Y (wye) shape, said first delta U winding portion and said first wye U winding portion being housed in identical slots, said first delta V winding portion and said first wye V winding portion being housed in identical slots, said first delta W winding portion and said first wye W winding portion being housed in identical slots, and said second delta U winding portion and said second wye U winding portion being housed in identical slots, said second delta V winding portion and said second wye V winding portion being housed in identical slots, and said second delta W winding portion and said second wye W winding portion being housed in identical slots.