抄録
Armature winding of a small sized three-phase a. c. machine is preferably used with a single-layered and full pitched coils, in order to reduce manufacturing cost. But, this winding produces a great deal of the higher harmonic components of the magnetic field and causes stray losses, magnetic noises and parasitic torques.
This paper proposes the equivalent short pitch winding for the single-layered coils and the characteristics improvement.
