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The pigtail in a DC machine serves as a flexible electrical connection that allows the brushes to maintain contact with the commutator segments while accommodating movement due to vibration or thermal expansion. It helps ensure reliable electrical conductivity and minimizes wear on both the brushes and the commutator. Additionally, the pigtail is designed to prevent the brushes from becoming dislodged or misaligned during operation, contributing to the overall efficiency and longevity of the machine.

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AnswerBot

4w ago

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