Stationary alternator parts

  • Thread starter dhivakhar
  • Start date
  • #1
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will an alternator produce current when both its field and armature windings are stationary(like transformer action),
as ac current produces a changing magnetic field.is the field rotated for making more output?
 

Answers and Replies

  • #2
NascentOxygen
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Science Advisor
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Hi dhivakhar. http://img96.imageshack.us/img96/5725/red5e5etimes5e5e45e5e25.gif [Broken]
Relative motion is needed for an alternator to generate a voltage. http://thumbnails112.imagebam.com/37333/0363e9373324851.jpg [Broken]
 
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  • #3
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If the field is alternating current, then the stator will incur induction like a transformer. But the coupling coefficient between primary and secondary changes with rotor angle. When the stator and rotor poles are directly aligned, coupling is maximized. If the rotor and stator are 90 electrical degrees apart, coupling is minimized. Did I help?

Claude
 

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