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Why pole shoe of dc machine is much wider than body of rest of pole?

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shabab

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why pole shoe of dc machine much wider than body of rest of pole.
 

Re: Dc machine

The pole shoes have two purposes
1.they spread out the flux in the air gap and also, being larger cross section,reduce the reluctance of the magnetic path
2. they support the exciting coils (field coils)
 

Re: Dc machine

Hi Friend,

So that the magnetic field in the air does not get weak.



Regards,
Avinash.S.
 

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