In case of a synchronous generator carbon brushes, some brushes expire before t

In case of a synchronous generator carbon brushes, some
brushes expire before the others. Why is so? When all the
brushes are installed at the same time, why don't thee
expire at the same time?

Question Posted / hassaan

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In case of a synchronous generator carbon brushes, some brushes expire before the others. Why is so..

Answer / k.prakashchandra

That depends on shape of the brush holder and spring pressure on each brush

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