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This section deals with the opperation principles of the electrical machine with rotating field (synchronous and asynchronous machines).
This presentation shows how it is possible, having windings which provide a sinusoidal repartition of the field within the air-gap, to obtain a rotating field.
Realization of a sinusoidal winding
This exercise explains the mode through which, by using the technique of repartition of the windings in the slots, it is possible to realize a winding that provides a sinusoidal repartition of the field within the air-gap. It will be demonstrated that it is easier to achieve this by using a triphase winding rather than a biphase one, which justifies, among other things, the great popularity in electrotechnics of the triphase systems.
