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Explain What will happen when direction of field current is
changed (i.e, field excitation is reversed) in the
following machines?
1) Alternator
2) Synchronous Motor
3) D.C Generator ( Shunt or Seies )
4) D.C Motor ( Shunt or Seies )
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Answer Posted / prasanth
1.in alternator the induced emf is reduced due to retentive property of the field magnet when reversed.
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