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Armature reaction of an unsaturated D.C. machine is crossmagnetising.

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Description : Define armature reaction in an alternator. Explain the effect of armature reaction at various P.F. of loads of alternator.

Description : In a 3 -phase alternator, if there is only magnetizing armature reaction, the load is :  (A) capacitive (B) inductive (C) resistive (D) inductive and resistive

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