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...t Current]], [[Alternating Current]], [[Electrical Machines]], [[AC motors|AC]] & [[DC Motor]]s, [[Transformer]]s, [[Electric generator|Generators]], Rot ...

...0px|AC [[relay]] with shading coil (red arrow near top) for operating with AC]] ...ps://prod.cheggstudy.prod2.cheggnet.com/homework-help/explain-shading-coil-ac-contactor-reduces-chatter-chapter-13-problem-2rq-solution-9780130612106-exc ...

{{Short description|Method of slowing AC electric motors}} ...nt|Direct Current]] is injected into the winding of the AC motor after the AC voltage is disconnected, providing braking force to the rotor.<ref>{{cite b ...

...tric motor#Single-phase AC induction motors|capacitor start]] single-phase motors. However, in a two-phase induction motor, the impedances of the two winding ...ave a constant combined power for an ideal load, practical devices such as motors can suffer from power pulsations in two-phase systems.<ref name="blalock"/> ...

{{Short description|Electrical circuit that changes AC frequency}} ...wer [[frequency]] by synthesizing the output waveform from segments of the AC supply without an intermediate DC link ({{harvnb|Dorf|1993|pp=2241–2243}} a ...

...''Arrangement for obtaining two different pole numbers for asynchronous AC motors'', 11 February 1897</ref> :''f'' = AC power frequency ...

==AC and DC== ...</ref> [[Mains power]] (called household current in the US) is universally AC.<ref>{{cite web |title=Electric Current Information for All Countries |url= ...

{{Short description|Device used with AC electrical motors}} A '''motor soft starter''' is a device used with [[AC motor|AC electrical motor]]s to temporarily reduce the load and [[torque]] in the [[ ...

...th a commutator, but run from AC. Larger AC motors are generally induction motors, whether these are three-phase or single-phase. ...mmutator]], a combination of rotating slip ring and switches. AC induction motors also use field coils on the stator, the current on the rotor being supplied ...

==Electric motors == ...the [[utility frequency|frequency]] of the alternating current supply. AC motors can be made for "pole changing" operation, reconnecting the stator winding ...

In the past, experimental AC synchronous superconducting machines were made with rotors using low-temper More recently AC synchronous superconducting machines have been made with [[ceramic]] rotor ...

{{Short description|Phenomenon in electric motors and generators}} ...on, or capacitive coupling with the windings of the motor. It can occur in motors powered by [[variable-frequency drive]]s, as often used in [[HVAC|heating, ...

...de DC power for commercial, industrial and railway electrification from an AC power source.<ref>{{Cite journal |last=Owen |first=Edward L |date=1996-01-0 ...a synchronous rotary converter or simply a [[synchronous converter]]. The AC slip rings also allow the machine to act as an alternator. ...

These systems used [[Universal motor|series-wound traction motors]]. All of them needed a separated supply system or converters to take power ...d it must be converted in the locomotive to three-phase power for traction motors. ...

...of early 2020s),{{sfn | Ritonja | 2021 | p=}} and in the form of electric motors consume approximately 60% of all electric power produced. Electric machines ...ither the rotor or the stator. Generators are classified into two types, [[AC generator]]s and [[DC generator]]s. ...

* The chopper works even if AC supply is lost. Braking during main power loss may be required. E.g. in [[e ...r the braking energy dissipation inside the motor. Typically, in low power motors(below 5&nbsp;kW) the resistance value of the motor is relatively large in r ...

...ce]]s that functionally rely on [[electric energy]] ([[alternating current|AC]] or [[direct current|DC]]) to operate their core parts ([[electric motor]] ...

* 2016 - Bruno Lequesne, President, E-Motors Consulting, LLC, Menomonee Falls, Wisconsin, USA *: ''For contributions to the design and analysis of actuators, sensors, and motors for automotive applications.'' ...

...ge-mg-set.jpg|thumb|222px|An MG set used to provide a variable three phase AC voltage for an [[Electron beam welding|Electron Beam Welding Machine]] high * [[Alternating current]] (AC) to [[direct current]] (DC) ...

{{Short description|Type of AC electrical generator}} ...mechanically turning their rotors faster than synchronous speed. A regular AC induction motor usually can be used as a generator, without any internal mo ...