DC Generators
An 8 pole, 250 V, wave wound generator has 400 conductors. If the generator is to be lap wound, the number of conductors required is ______

1600
3200
800
100

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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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DC Generators
When two D.C. series generators are running in parallel, an equalizer bar is used

To increase the speed and hence generated e.m.f.
So that two similar machines will pass approximately equal currents to the load
To reduce the combined effect of armature reaction of both machines
To increase the series flux

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