Brush (electric)

A pair of carbon brushes

A brush or carbon brush is an electrical contact, often made from specially prepared carbon, which conducts current between stationary and rotating parts (the latter most commonly being a rotating shaft) of an electrical machine.[1] Typical applications include electric motors, alternators and electric generators. The lifespan of a carbon brush depends on how much the motor is used, and how much power is put through the motor.[2]

  1. ^ Butterfield, Andrew J.; Szymanski, John, eds. (2018). A Dictionary of Electronics and Electrical Engineering. Vol. 1. Oxford University Press. doi:10.1093/acref/9780198725725.001.0001. ISBN 978-0-19-872572-5.
  2. ^ topdealsonline (2020-09-17). "How Long Do Carbon Brushes Last in Power Tools?". Top Deals Online. Retrieved 2020-10-06.

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