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commutator |
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commutator, device used in an electric generator generator, in electricity, machine used to change mechanical energy into electrical energy. It operates on the principle of electromagnetic induction , discovered (1831) by Michael Faraday. ..... Click the link for more information. to convert the alternating current produced in the generator into direct current before the current is sent into an external circuit; it is basically a rotary switching device synchronized with the frequency of the alternating current. Commutators are also used in electric motors motor, electric, machine that converts electrical energy into mechanical energy. When an electric current is passed through a wire loop that is in a magnetic field, the loop will rotate and the rotating motion is transmitted to a shaft, providing useful mechanical ..... Click the link for more information. to switch currents in order to maintain magnetic polarities necessary to keep the shafts of the motors turning. commutator 1. a device used to reverse the direction of flow of an electric current 2. the segmented metal cylinder or disc mounted on the armature shaft of an electric motor, generator, etc., used to make electrical contact with the rotating coils and ensure unidirectional current flow How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Van Dijk cites growing applications in automotive water pumps, temperature-regulator modules, fuel pumps, transmission reactor/stators, and commutators. With a switch to automatized communication systems based on digital fast communication and computer commutators, and optical fiber channels technological rivalry will become even fiercer. In addition, the omni-directional technology creates a virtually maintenance free unit; AC motors eliminate brushes and commutators and are lubricated for life eliminating the need for additional greasings and fittings. |
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