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What are the advantages of using fractional-pitch coils

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Reference no: EM132289128

Question: a) Derive from the first principles the equation of induced E.M.F in armature windings of an alternator.

(b) A 60-Kva 220V,50-Hz single phase alternator has effective armature resistance of 0.016Ω and an armature leakage reactance of 0.07Ω.Calculate the voltage induced in the armature when the alternator is delivering rated current at a load power factor of;

(i) Unity

(ii) 0.7 lagging

(iii) 0.7 leading

(c) What are the advantages of using fractional-pitch coils in the armature of an alternator.

Reference no: EM132289128

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