commutator


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com·mu·ta·tor

 (kŏm′yə-tā′tər)
n.
1. A cylindrical arrangement of insulated metal bars connected to the coils of a direct-current electric motor or generator, providing a unidirectional current from the generator or a reversal of current into the coils of the motor.
2. Mathematics In a commutative or noncommutative group, an element of the form ghg-1h-1 where g and h are elements of the group. If g and h commute, the commutator is the identity element.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

commutator

(ˈkɒmjʊˌteɪtə)
n
1. (Electronics) a device used to reverse the direction of flow of an electric current
2. (Electrical Engineering) 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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

com•mu•ta•tor

(ˈkɒm yəˌteɪ tər)

n.
1.
a. a device for reversing the direction of a current.
b. (in a DC motor or generator) a ring or disk assembly that works to change the frequency or direction of current in the armature windings.
2. Math. the element equal to the product of two given elements in a group multiplied on the right by the product of the inverses of the elements.
[1830–40]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.commutator - switch for reversing the direction of an electric currentcommutator - switch for reversing the direction of an electric current
electric switch, electrical switch, switch - control consisting of a mechanical or electrical or electronic device for making or breaking or changing the connections in a circuit
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

commutator

n (Elec) → Kommutator m
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
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References in classic literature ?
'Dudley wanted to show me the commutator on the exhaust-box or the windscreen, or something, and he was just bending over when Eustace jumped out from nowhere and pinned him.
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At certain periods during the DC motor rotation, the commutator must reverse the current, causing reduced motor life due to arcing and friction.
Brushless DC motor vs DC brush motor
We are subsidising foreign railways through a ticketing pricing system that not only penalises the British commutator, but also helps offset foreign competitor's salaries to their workers.
We're all paying for rail privatisation; Get in touch - tell us what you think Email: letters@birminghammail.co.uk Twitter: @birminghammail Facebook: facebook.com/birminghammail Post: Birmingham Mail, 60 Church Street, Birmingham B3 2DJ
If be BMO([R.sup.n]), the commutator of Calderon-Zygmund singular integral operator on differential forms is of the form
The Higher Integrability of Commutators of Calderon-Zygmund Singular Integral Operators on Differential Forms
As the owner and operator, SSE was looking to eliminate both the dust and maintenance burden plus significantly reduce the risk of extended outage resulting from brush and commutator wear.
Vital electrical equipment gets a new lease of life
"These were used to turn and clean a commutator on a DC motor or generator," Dave says.
WANTED: GADGETS, GIZMOS & CONTRAPTIONS
The rotor (together with the axle and attached commutatorDC motor has six basic parts--axle, rotor (armature), stator, commutator, field magnet(s), and brushes most common DC motors, the external magnetic field is produced by high-strength permanent magnets.
Design and fabrication of dual side fan
The commutator subalgebra H' of a semisimple Hopf algebra H was first defined in [1].
From finite groups to finite-dimensional Hopf algebras
A number of strict requirements are imposed upon the commutator motors for the manufacturing accuracy and quality of mounts and components, for the electromagnetic characteristics, durability and heat resistance of individual mounts.
The optimum cutting speed and acceptable parameters for tool vibration when turning an inhomogeneous material

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