What is the purpose of interpoles?

What is the purpose of interpoles?
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1 Answer

Answer :

To counter act armature reaction.
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In a DC generator the windings of interpoles are connected :

Description : In a DC generator the windings of interpoles are connected :  (A) in series with main field winding, to create a pole,of same polarity as the main pole ahead in the direction of rotation.  ... winding, to create a pole of opposite polarity as the main pole ahead in the direction of rotation.

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