DC Generators
Number of tapings for each equalizer ring is equal to

Number of pole pairs
Number of parallel paths
Number of commutator segments
Number of poles

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

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

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