Distributed winding: For obtaining smooth sinusoidal emf waveform, conductors are placed is several slots under a single pole. This armature winding is known as distributed winding. It reduces emf It also reduces harmonic emf and so waveform is improved It also diminishes armature reaction Even distribution of conductors helps for better cooling The core is fully utilized as the conductors are distributed over the slots on the armature periphery Fractional pitch winding: When the number of slots per pole per phase is an integer, the winding is the integer slot winding but when the number slots per pole per phase is a fractional number the winding we refer as fractional slot winding. It is practicable only with the double-layered winding It reduces both the emf and harmonics