As shown in the illustrated DC machine which is configured as a generator, what is the polarity of the interpoles as compared to the main field poles? See illustration EL-0052.

Question

Accepted Answer

in the direction of rotation, the preceding interpole should have the same polarity as the following main pole

Answer

in the direction of rotation, the preceding interpole should have the opposite polarity as the following main pole

Answer

in the direction of rotation, the following interpole should have the same polarity as the preceding main pole

Answer

the polarities of the interpoles 180 degrees opposite one another should be the same, the actual polarities compared to that of the main poles does not matter

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