why dc supply is given for excitation of ac alternator?how dc can produce flux?

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why dc supply is given for excitation of ac alternator?how
dc can produce flux?

Question Posted / shiva

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why dc supply is given for excitation of ac alternator?how dc can produce flux?..

Answer / coolsunil56

dc excitation is given to rotor so that it gets magnetised and gets locked with magnetic revolving field of statorand start rotating with same speed means at synchronous speed.

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why dc supply is given for excitation of ac alternator?how dc can produce flux?..

Answer / k.sri405

dc can produced flux but it is constant in nature so magnet
have constant pole. that's why this pole gets locked with
the poles of stator

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why dc supply is given for excitation of ac alternator?how dc can produce flux?..

Answer / kundanmalani1990

Excitaion r use to the pole r converte to the parmanet magnet so the excitation r use

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3 No

why dc supply is given for excitation of ac alternator?how dc can produce flux?..

Answer / naveen

D.C Supply in alternater used for genarating magnatic field in roter ,But nature of field would be Stationary Not fluctuating, when Roter get speed from prime mover its Induced VOLTAGE AND CURRENT in Armature.

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why dc supply is given for excitation of ac alternator?how dc can produce flux?..

Answer / vamsi

ac alternator is not a salf stator so dc supply for self
motor,dc can not produce flux.

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2 Yes

5 No

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