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Definition of "Commutation" |
The act of a commutator in converting generator output from an ac voltage to a dc voltage. Sequential sampling on a repetitive basis, of multiple data sources. / the process by which alternating current in the rotating coil of a DC machine is converted to unidirectional current. Commutation is accomplished via a set of stationary electrical contacts (brushes) sliding over multiple, shaft-mounted electrical contacts that turn with the machine rotor. The contacts are the connection points in a series-connected loop of the coils that make up the rotor winding. The brushes, sliding over these contacts, continually divide the loop into two parallel electrical paths between the brushes. |
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