Eckels, Arthur R. Formerly, Department of Electrical Engineering, North Carolina State University, Raleigh, North Carolina.
Last reviewed:January 2020
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That part of a dc motor or generator which serves the dual function, in combination with brushes, of providing an electrical connection between the rotating armature winding and the stationary terminals, and of permitting the reversal of the current in the armature windings. For explanation of the necessity of this function See also: Commutation .
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