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The pitch factor for a full pitch winding of a synchronous machine is

  • The pitch factor for a full pitch winding of a synchronous machine is 1.
  • In a full-pitch winding, the coil span is equal to the pole pitch, which means that each coil spans one pole pitch and is wound around one pole before continuing to the next.
  • This results in a sinusoidal distribution of emf along the stator periphery, which is similar to that of a single-phase alternator.
  • Since the full-pitch winding has a uniform distribution of emf, the pitch factor is equal to 1.
  • In other words, the actual emf induced in the winding is equal to the emf that would be induced if the winding were uniformly distributed over the stator periphery.