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State advantages and disadvantages of short pitch winding, distributed winding in alternator and derive an expression for distribution factor


State advantages and disadvantages of short pitch winding, distributed winding in alternator and derive an expression for distribution factor.

or

Explain the effect of distribution of winding & use of short pitch coil on the magnitude of generation voltage of an alternator & hence give expression for distribution factor &coil span factor.

or

Derive coil span factor, breath factor and induced emf equation of a Synchronous generator.

or

Derive EMF equation of alternator for full pitched and concentrated windings.

or

Explain a) distribution factor b) pitch factor in case of synchronous machine.

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