DC Generators
Dc machines which are subjected to abrupt changes of load are provided with

Equalisers
Compensating windings
Interpole windings
Copper brushes

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DC Generators
In D.C. generators the polarity of the interpoles

Is neutral as these poles do not play part in generating e.m.f.
Is the same as that of the immediately preceding pole
Is the same as that of the main pole ahead
Is opposite to that of the main pole ahead

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