In a case where three-phase coils are wound with a conductor around twelve magnetic pole teeth that are provided at equal angular intervals on an inner peripheral portion of a stator core forming a three-phase, twelve-pole stator, the winding configuration is such that the windings of the respective three phases share a first common winding pattern of the conductor around the magnetic pole teeth but differ in their circumferential positions on the stator core, and each phase winding includes a first portion and a second portion that share a second common winding pattern of the conductor around the magnetic pole teeth but differ in their circumferential positions on the stator core by half a circumference. The conductor is wound simultaneously for all of the first and second portions of the three phases by synchronously moving six nozzles feeding the conductor, relative to the stator core.

In a case where three-phase coils are wound with a conductor around twelve magnetic pole teeth that are provided at equal angular intervals on an inner peripheral portion of a stator core forming a three-phase, twelve-pole stator, the winding configuration is such that the windings of the respective three phases share a first common winding pattern of the conductor around the magnetic pole teeth but differ in their circumferential positions on the stator core, and each phase winding includes a first portion and a second portion that share a second common winding pattern of the conductor around the magnetic pole teeth but differ in their circumferential positions on the stator core by half a circumference. The conductor is wound simultaneously for all of the first and second portions of the three phases by synchronously moving six nozzles feeding the conductor, relative to the stator core.

Three-phase windings are wound, with a conductor, around twelve magnetic pole teeth arranged at equal angular intervals on an inner peripheral portion of a stator core configured to constitute a three-phase, twelve-pole stator. The winding of each phase comprises, at least at one location, a portion in which the conductor is drawn out from one of the slots to form a lead-out portion and is then returned to the same slot, and the conductor on both sides of the lead-out portion is fixed within the one slot by the conductor wound around one of the magnetic pole teeth forming the one slot after the lead-out portion has been formed.

Three-phase windings are wound, with a conductor, around twelve magnetic pole teeth arranged at equal angular intervals on an inner peripheral portion of a stator core configured to constitute a three-phase, twelve-pole stator. The winding of each phase comprises, at least at one location, a portion in which the conductor is drawn out from one of the slots to form a lead-out portion and is then returned to the same slot, and the conductor on both sides of the lead-out portion is fixed within the one slot by the conductor wound around one of the magnetic pole teeth forming the one slot after the lead-out portion has been formed.