ABSTRACT
The magnetic conditions of the rotor are distinctly reflected in the adjacent non-magnetic regions and this provides an alternative approach for computing power flow into the rotor and hence the torque at the shaft. The driving motor supplies mechanical power to the rotating field system through the belt. In a simple device this power would simply equal the mechanical losses. The effect of space harmonics in practical motors due to currents in three-phase distributed winding leads to complications in their analytical treatment mainly owing to relative speeds of rotation of harmonics, in the experimental machine the effect of harmonics is realisable using simple principle of superposition.
