Why Doesn't a Synchronous Machine Induce EMF in DC Field Wires?

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SUMMARY

The discussion centers on the absence of induced EMF in the DC field wires of synchronous machines. Participants clarify that the relative motion between the rotating magnetic field and the field windings does not generate EMF due to the nature of synchronous operation. The concept of amortisseur windings is introduced as a relevant topic for understanding this phenomenon. Key points emphasize the importance of magnetic field interaction and the principles of electromagnetic induction.

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  • Knowledge of magnetic fields and their interactions
  • Concept of amortisseur windings in electrical machines
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conflict: why synchronous machine doesn't produce induced EMF in the DC field wires

Isn't it current path through winding which produce magnetic field (rotating) the must produce EMF in the dc winding of field (same theory of induction)

but why isn't true in synchronous
 
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Two questions:

1. What makes you think it doesn't?
2. What is releative motion between rotating field wires and the magnetic field in which they rotate?

Read up on "amortisseur windings".
 
Last edited:


thanks very much
 

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