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why dc supply given to ac alternator rotor

Answers were Sorted based on User's Feedback



why dc supply given to ac alternator rotor..

Answer / g .senthilkumaran

It is always better to give DC supply to the field then
only we can get continuous output i.e sine wave from the
stator of an alternator.

Is This Answer Correct ?    10 Yes 0 No

why dc supply given to ac alternator rotor..

Answer / hansraj

the dynamical induced emf needs a constant flux i.e time
invarient flux
if we give the ac input it produces alternating flux in the
rotar field and dc current not producec e.m.f. is induced
so the
electrical power will be zero

Is This Answer Correct ?    2 Yes 0 No

why dc supply given to ac alternator rotor..

Answer / veeru

the dynamical induced emf needs a constant flux i.e time
invarient flux
if we give the ac input it produces alternating flux in the
rotar field and then there is no emf is induced so the
electrical power will be zero

Is This Answer Correct ?    3 Yes 3 No

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