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Encyclopedia results for Electric motor

Electric motor





Encyclopedia results for Electric motor

  1. Electric motor

    About other kinds of motors motor disambiguation a railroad electric engine electric locomotive Cleanup date June 2009 Image Motors01CJC.jpg thumb Electric motors An electric motor converts electrical energy into mechanical energy . Most electric motor s operate through interacting magnetic fields and electrical ... for a gas turbine , or traction motor s used on vehicles, often perform both tasks. Electric motors ... The first Commutator electric commutator type direct current electric motor capable of turning machinery ... Sturgeon s work, a commutator type direct current electric motor made with the intention of commercial ... work. ref name ReferenceA ref name mpoweruk.com He built a model electric vehicle electric motor propelled ... he had invented to a second similar unit, driving it as a motor. The Gramme machine was the first electric ... such early electric motor designed by Froment, see a Google Books PDF online version of Ganot s Physics ... motor http www.physics.umd.edu lecdem services demos demosk4 k4 21.gif Application of electric ... own electric motor, providing easy control at the point of use, and improving power transmission ... project progress projects on improving production efficient electric motor system.html Electric ... motors main DC motor A DC motor is designed to run on DC electric power. Two examples of pure DC designs ... windings. Permanent magnet motors main Permanent magnet electric motor A permanent magnet motor does ... fed electric motor singly fed synchronous motor synchronous and induction motor induction electric machines. Brushed DC motors Main Brushed DC electric motor File Electric motor cycle 2.png thumb right 200px Workings of a brushed electric motor DC motor design generates an oscillating current in a wound ... to friction, etc. Many of the limitations of the classic commutator electric commutator DC motor are due ... electric motor Some of the problems of the brushed DC motor are eliminated in the brushless design ... efficient or more higher efficiency for a brushless electric motor of up to 96.5 were reported by researchers ...   more details



  1. Brushless AC electric motor

    A Brushless AC electric motor , also known as a permanent magnet synchronous motor PMSM , is similar to a brushless DC electric motor in that the magnetic field of the rotor is supplied by the permanent magnets rather than by electromagnet s. However, the stator windings of a brushless AC motor are sinusoidally distributed windings , while those of a brushless DC motor are salient field coil s. References reflist Electric motor Category AC motors tech stub es Motor de imanes permanentes ...   more details



  1. Electric Outboard Motor

    due to future shortage of oil into consideration, electric boat motors will be the financially more interesting way of marine propulsion in a few years time. A 2 horsepower electric outboard motor including ... for electric boat motors accessdate 2010 11 11 ref Large Vessels As there is no technical limit to the size of an electric motor, even large vessels can be equipped with electric engines. The limitation ...refimprove date October 2010 Electric Outboard Motors are an increasingly popular and environmentally friendly option for boat propulsion. Most electric outboard engines are equipped with 0.5 to 4 KW Direct current DC electric motor s, operated at 12 to 48 volts DC. These systems have the propeller fixed directly to the electric motor which is mounted in the lower unit under water see trolling motor . This setup limits the power output. Recently developed outboard motors like the Aquawatt ref http www.aquawatt.at en electric outboards.php ref or Parsun see talk page are powered with an Alternating current AC or DC electric motor in the power head like a conventional petrol engine . With this setup a motor can produce 10 KW output or more and is able to replace a petrol engine of 15 20 HP. Power Supply The advantage of electric boat propulsion systems are the low maintenance costs, the limited noise and emission free operation. The only disadvantage are the batteries, which in case of Lead ... or diesel generator which recharges the batteries. Costs Due to the still small quantities of electric ... of Hybrid electric vehicle hybrid systems . The first electric boat has been operating in 1834 for the zar of Russia and a lot of suppliers prove, that electric boating is a serious alternative ... electric armada plug boats title First electric boat accessdate 2010 11 11 ref See also Electric boat Outboard motor External links http www.electricboats.org.au http www.electric boat association.org.uk References references Category Marine engines Category Marine propulsion Category Electric motors ...   more details



  1. Brushless DC electric motor

    stopped with the rotor in a defined angular position this page describes more general BLDC motor principles, though there is overlap. clear Brushless versus brushed DC motors Brushed DC electric motor Brushed DC motors have been in commercial use since 1886. ref Frank Julian Sprague Joining the emerging electrical industry ref ref Electric motor The first electric motors ref BLDC motors, however .... File Brushless DC Electric Motor Torque Speed Characteristics.png thumb Brushless DC Electric Motor Torque Speed Characteristics A BLDC motor has permanent magnets which rotate and a fixed armature ... wheel hub is the motor. This type of electric bicycle also has a standard bicycle transmission ... as a result are quickly rising to be the preferred motor type for electric on and off road ... of performance Inrunner Outrunner Brushless AC electric motor References reflist External links Commons category Brushless DC electric motors http www.aveox.com DC.aspx Optimizing design motor ... for electric Scooter, electric Motorbike and electric Cars Electric motor DEFAULTSORT Brushless Dc Electric Motor Category Electric motors da B rstel s DC motor de B rstenloser Gleichstrommotor es ... silnik elektryczny pt Motor de corrente cont nua sem escovas ro Motor electric de curent continuu ...Mergefrom electronically commutated motor date March 2009 effected June 2010 by Trev M Image Brushless Motor DUM60.jpg thumb right A microprocessor controlled BLDC motor powering a micro remote controlled airplane. This Variations in construction external rotor motor weighs 5 grams, consumes approximately ... as electronically commutated motors ECMs, EC motors are synchronous electric motors powered by direct ... than mechanical Commutator electric commutators and Brush electric brushes . The current to torque ... , or reluctance motor s. The latter may be without permanent magnets, just poles that are induced on the rotor then pulled into alignment by timed stator windings. However, the term stepper motor tends ...   more details



  1. Bipolar electric motor

    File TeknoJevnstromsmotor1.JPG thumb Bipolar toy motor of 1948. Note the three pole rotor with a bipolar field about the continuously rotating DC motor the Stepper motor wiring configuration Stepper motor Bipolar motor A bipolar electric motor is an electric motor with only two hence bi poles to its ... DC motor , with a commutator electric commutator . This field may be generated by either a permanent magnet or a field coil . The bipolar term refers to the stationary field of the motor, not the rotor ..., represented one of the most expensive parts of the motor to manufacture. Electric railway ... motor has been widely used in electric torys, since the early days of tinplate toy s. The first such motors ... motor and potentially more for a high power motor. A two pole rotor has the disadvantage that it is not self ... thumb Early bipolar motor, with internal field coils, circa 1900 File Bipolar motors Electrical ... machine Gramme motor of the 1870s onwards, used bipolar fields. These early machines used .... The two coils were now separated and placed at the sides of the motor, with their iron core ... of the magnetic circuit was a double sided circular path around the casing of the motor. Whilst .... This circular layout also represented the end of the bipolar motor as an industrial power source. It was possible ... circumference of the armature, this give a motor of almost twice the power, for the same armature ... Milwaukee Road s Milwaukee Road class EP 2 class EP 2 electric locomotive s of 1917. ref name Modern ... Electrification Coast Division route, using a voltage of 3,000V DC. These were not the first electric ... motor s used small high speed motors alongside each axle, driving through a reduction gearbox. This system would eventually predominate across both electric and diesel locomotives, but at this time ... formed the spindle of not only the wheels, but also the motor armature itself. This obviously simple ... and axle, and in this case the motor too, are unsprung weight unsprung by the suspension, any ...   more details



  1. Brushed DC electric motor

    A brushed DC motor is an internally Commutator electric commutated electric motor designed to be run from a DC power source. Simple two pole DC motor The following graphics illustrate a simple, two pole, brushed, DC motor. table border 0 cellspacing 10 tr td colspan 3 center DC Motor Rotation center td tr tr align center td width 33 Image Electric motor cycle 1.png 200px td td Image Electric motor cycle 2.png 200px td td width 33 Image Electric motor cycle 3.png 200px td tr tr tr valign top td A simple DC electric motor. When the coil is powered, a magnetic field is generated around the armature ... of an electric DC motor. One simple solution is to put a gap between the commutator plates which is wider ... become more applied in electric motor or generator systems, other problems are realized see Permanent ... its highest torque at low speed, it is often used in Traction motor traction applications such as electric ... Digital electric motor References reflist External links http www.stefanv.com rcstuff qf200212.html ... controller.pdf Theory of DC motor speed control Electric motor DEFAULTSORT Brushed Dc Electric Motor Category Electric motors be be x old ca Motor de ... pl Silnik pr du sta ego ro Motor electric de curent continuu f r perii ru .... The process then repeats. td table Image Electric motors en.jpg thumb right Electric motors of various ... it rotate. To make the motor rotate in a constant direction, direct current commutators make the current reverse in direction every half a cycle in a two pole motor thus causing the motor to continue to rotate in the same direction. A problem with the motor shown above is that when the plane of the coil ... it is just about to reach in the last picture on the right. The motor would not be able to start ... through both Brush electric brushes the coil is shorted twice, once through each brush independently ... century. However, if a two pole motor were designed to do actual work with several hundred watts of power ...   more details



  1. Electric motor manufacturing industry in China

    China s electric motor industry has been developed for 60 years. Most munafacturers produce low power and small size motors. Small motor manufactuers are mostly located in Zhejiang province, Fujian province, and Guangdong province ref Lee, Yimin 1998 , An Introduction to China s Electric Motor Inductry , China Electric Motor , Spring, pp.15 25. ref . Only a few motor manufactuers produces high power and large size motors, for example Wannan Motor ref http www.wnm sh.com ref . High power and large size motors are often used in rolling mills, etc. In the last, ABB Group ABB and Siemens large size motors took a large market shares in China. However, ABB and Simens motor often have very high sale prices so that some rolling mills cannot afford. They need domestic large size motors instead of ABB motors. Currently, those rolling mills can buy from domestic motor manufactuers which can produce such large size motors. See also Economy of the People s Republic of China References references External links http www.wnm sh.com China Electric Motor Industry Association Economy of the People s Republic of China Category Industry of China ...   more details



  1. Internal fan-cooled electric motor

    An internal fan cooled electric motor colloquially, fan cooled motor is a self cooling electric motor . Fan cooled motors feature an Fan mechanical axial fan attached to the Rotor electric rotor of the motor usually on the opposite end as the output shaft that spins with the motor, providing increased airflow to the motor s internal and external parts which aids in cooling. Image Smallfancooledmotor.jpg 250px right Uses Fan cooled motors have many common uses in motors that either produce a lot of heat or have poor airflow because they are always stationary or in an enclosed space and require a compact cooling system. They are common for industrial uses ref http www.frasers.com public searchResults.jsf jsessionid AA6F5C172D9346CF0319292AF52D3B5A?dimensionName Motors Fan Cooled&guided true&ProductID 16669 ref , household appliances such as blenders and mixers, power tools such as drills and rotary tools, and radio controlled car s ref http www.traxxas.com products accessories trx accessories titan12t.htm ref Advantages Attaching an internal fan to a motor is a fairly simple way to cool it. Since a fan cooled motor always provides airflow over itself regardless of whether it is stationary or partially enclosed, it is more effective than using a heat sink in applications with poor airflow because heat sink s usually require air to be flowing over them for maximum effectiveness. Internal fan cooling also takes up far less space than TEFC external fan cooling or water cooling . Disadvantages All fans generate noise, something that may not be desired in a motor, and Drag physics drag on their power source. Also, like any device with a Fan mechanical fan , increased airflow through the motor can cause increased dust build up, which could potentially hinder the motor s operation. References reflist Category Electric motors ...   more details



  1. Electric Motor Education and Research Foundation

    Orphan date February 2009 Citations missing date November 2007 The Electric Motor Education and Research Foundation , or EMERF, is a Non profit organization non profit foundation affiliated with SMMA the Motor and Motion Association, a United States based electric motor Industry trade group trade association . EMERF was chartered in 1995 to advance and promote the electric motor industry through education, pre competitive research and facilitation of technology transfer within the industry and in cooperation with academic, private research and governmental organizations. EMERF is governed by an active Board of directors Board of Directors that develops research and educational programs based on input from SMMA members and others involved with electric motor s. The office of the foundation is in Dartmouth, Massachusetts South Dartmouth, Massachusetts , USA. Research Programs The primary research program at EMERF is the Lamination Steels Research Project. This project began in 1997 and is charged with developing a set of updated information on electrical steel and other alloys commonly used in the laminated cores of electric motor s, Electrical generator generator s and other types of electrical rotating machinery. Special emphasis is placed on collecting and developing new information on the performance of these steels under non sinusoidal excitation, at high excitation or switching frequencies, and at high induction levels The Lamination Steels Research Project currently follows ... current Hysteresis Magnetization Electrical steel Silicon steel Steel Magnetic core Electric motor ... General Meeting , Montr al. External links http www.smma.org emerf.html EMERF, The Electric Motor .... The Proceedings of the 2003 IEEE International Electric Machines and Drives Conference. CD ROM ..., and P. Pillay. 2004. Core losses in motor laminations exposed to high frequency or non sinusoidal ... on Losses in Lamination Steels Category Electric motors ...   more details



  1. File:World's first electric motor, Jedlik's motor (1828).jpg

    Information Description World s first electric motor, the Jedlik motor 1828, Hungary Source I created this work entirely by myself. Date 2005 Author Stears56 other versions GFDL self month December day 10 year 2008 migration relicense ...   more details



  1. Coney Island Yard Electric Motor Repair Shop

    Infobox NRHP name Coney Island Yard Electric Motor Repair Shop nrhp type image caption location SW corner of Avenue X and Shell Rd., Brooklyn, New York lat degrees 40 lat minutes 35 lat seconds 23 lat direction N long degrees 73 long minutes 58 long seconds 31 long direction W coord display inline,title coord parameters region US NY type landmark locmapin New York City built 1927 architect architecture added February 9, 2006 area less than one acre governing body State mpsub New York City Subway System MPS refnum 06000016 ref name nris NRISref version 2009a ref Coney Island Yard Electric Motor Repair Shop is a historic motor repair shop for subway trains located at the Coney Island Complex in Coney Island, Brooklyn , New York City New York, New York . It was built between 1925 and 1927 and is a simple two story, box shaped brick clad building lit by multiple banks of large, multi paned windows and a massive Skylight window Sawtooth Roof sawtooth skylight . ref name nrhpinv ny cite web url http www.oprhp.state.ny.us hpimaging hp view.asp?GroupView 101486 title National Register of Historic Places Registration Coney Island Yard Electric Motor Repair Shop date March 2004 accessdate 2011 02 20 author Kathleen A. Howe publisher New York State Office of Parks, Recreation and Historic Preservation See also cite web url http www.oprhp.state.ny.us hpimaging hp view.asp?GroupView 101487 title Accompanying seven photos ref It was listed on the National Register of Historic Places in 2006. ref name nris References reflist National Register of Historic Places in New York Category Buildings and structures on the National Register of Historic Places in New York City Category Buildings and structures in Brooklyn Category New York City Subway yards and shops Category 1927 architecture KingsNY NRHP stub ...   more details



  1. T-Motor

    T Motor was the name given by the New York Central to its ALCO GE T1a, T1b, T2a, T2b, and T3a electric locomotives. After the New York Central was merged into Penn Central , Penn Central continued operating them. History ALCO and GE co built T Motors from 1913 to 1926. T Motors were only used on the third rail territory from Grand Central Terminal on to the Hudson and Harlem Divisions. They were the powerhouses of the GCT Division. T Motors hauled everything from commuter trains to the 20th Century Limited . At Croton Harmon on the Hudson Division, T Motors would be switched with steam, and later, diesel motive power to continue the journey. During Penn Central management, Penn Central was painted in NYC lettering on the engines. Slowly, T Motors were replaced by New York, New Haven and Hartford FL9 s on the Penn Central roster. External links http paintshop.railfan.net backlot nyc t motor.bvd.html A drawing of a T Motor in lightning stripe livery References http pc.smellycat.com pics equip electric.html Penn Central Railroad Online GE electrics Category ALCO locomotives Category 600V DC third rail locomotives Category New York Central Railroad locomotives Category B B B B locomotives Category Passenger locomotives Category Electric locomotives of the United States ...   more details



  1. The Motor

    About the UK car magazine the Australian Motor magazine Motor magazine Refimprove date December 2009 File Motor magazine 16 May 1981.jpg thumb right Motor magazine, 16 May 1981 issue The Motor later, just Motor not to be confused with the American Hearst Corporation trade publication , or the Australia n magazine of the same name was a United Kingdom British weekly automobile magazine car magazine founded on 28 January 1903. The journal was absorbed by its rival Autocar in 1988. For a brief period after the takeover by Autocar , the name lived on as the magazine was called Autocar & Motor however, the Motor name was dropped soon afterwards. Cover price In January 1968, during a period of government induced currency depreciation, the UK cover price of the magazine was increased from 2s. to 2s 6d equivalent to an increase from 0.10 to 0.125 . ref name Motor196801 cite journal authorlink Charles Bulmer Ed title News journal Motor volume pages page 76 date 13 January 1968 ref References reflist DEFAULTSORT Motor Category Publications established in 1903 Category British automobile magazines Transport mag stub UK mag stub it The Motor pt The Motor ...   more details



  1. The Electric

    The Electric may refer to The Electric Blues Company , A backing band for former The Animals Animals keyboardist Alan Price Electric Slide , a four wall line dance Electric Cinema, Birmingham , the oldest running cinema in the UK disambig ...   more details



  1. It's Electric

    Infobox album Name It s Electric Type live Cover It s Electric.jpg Artist Diamond Head band Diamond Head Released 2006 Recorded November 4, 2005 Genre Heavy metal music Heavy metal Length 142 mins Label Secret Films Producer Roger Lomas It s Electric is a Concert live CD from United Kingdom British Heavy metal music heavy metal band Diamond Head band Diamond Head . It features a live concert recorded at the London Astoria on November 4, 2005 during their All Will Be Revealed album tour, the first tour to feature Nick Tart on vocals for Diamond Head. The actual concert was held in celebration of the 25th anniversary of the emergence of the New Wave of British Heavy Metal . At the concert Diamond Head were supported by Praying Mantis band Praying Mantis , Witchfynde , Jaguar band Jaguar and Bronz . This concert was also later released as a DVD called To the Devil His Due , which contained footage of the making of the album and interviews with the band. Track listing Am I Evil intro It s Electric Give It To Me The Prince Mine All Mine Lightning To The Nations Fallen Angel To The Devil His Due Alimony I Can t Help Myself Sucking My Love Streets Of Gold Helpless Am I Evil? In The Heat Of The Night Line up Brian Tatler Guitar Nick Tart Singing vocals Karl Wilcox Drum kit drums Eddie Chaos Moohan Bass Guitar Adrain Mills Guitar Category Diamond Head albums Category 2006 live albums ...   more details



  1. Motor starter

    Starter motor or motor starter may refer to Motor controller , a device that regulates the performance of an electric motor Starter motor , an electric motor that rotates an internal combustion engine until it can power itself, such as in automobiles disambig ...   more details



  1. Motor (disambiguation)

    wiktionarypar motor Motor is a device that creates motion. It usually refers to an engine of some kind. It may also specifically refer to Electric motor , a machine that converts electricity into a mechanical motion AC motor , an electric motor that is driven by alternating current Synchronous motor , an alternating current motor distinguished by a rotor spinning with coils passing magnets at the same rate as the alternating current and resulting magnetic field which drives it Induction motor , also called a squirrel cage motor, a type of asynchronous alternating current motor where power is supplied to the rotating device by means of electromagnetic induction DC motor , an electric motor that runs on direct current electricity Brushed DC electric motor , an internally commutated electric motor designed to be run from a direct current power source Brushless DC motor , a synchronous electric motor which is powered by direct current electricity and has an electronically controlled commutation system, instead of a mechanical commutation system based on brushes Electrostatic motor , a type of electric motor based on the attraction and repulsion of electric charge Servo motor , an electric motor that operates a servo, commonly used in robotics Stepper motor , a type of electric motor capable ... fan cooled electric motor , an electric motor that is self cooled by a fan, typically used for motors ... or system Hydraulic motor , a machine that converts the energy of pressurized liquid flow into mechanical motion Rocket motor , usually refers to solid rocket engines Molecular motor , the agents of movement in living organisms Synthetic molecular motor , molecular machines capable of rotation ... motor , a machine that converts the energy of compressed air into mechanical motion Other uses Motor ... Mountains in Siberia http developer.berlios.de projects motor Motor Software , integrated development environment for Unix like systems Biology Motor system , the physiological system that is responsible ...   more details



  1. DC motor

    Unreferenced date January 2008 A DC motor is an electric motor that runs on direct current DC electricity. Brushed main Brushed DC electric motor The brushed DC electric motor generates torque directly from DC power supplied to the motor by using internal commutation, stationary permanent magnets, and rotating electrical magnets. Like all electric motors or generators, torque is produced by the principle ... the brushes and springs which carry the electric current, as well as cleaning or replacing the commutator electric commutator . These components are necessary for transferring electrical power from outside the motor to the spinning wire windings of the rotor inside the motor. Synchronous main Brushless DC electric motor Stepper motor Switched reluctance motor Synchronous DC motors, such as the Brushless DC electric motor brushless DC motor and the stepper motor , require external commutation to generate ... to a synchronous ac motor. Brushless main Brushless DC electric motor Switched reluctance motor Brushless DC motors use a rotating permanent magnet in the rotor, and stationary electrical magnets on the motor housing. A motor controller converts DC to alternating current AC . This design is simpler ... motor speed controllers. Uncommutated Other types of DC motors require no commutation. Homopolar motor A homopolar motor has a magnetic field along the axis of rotation and an electric current that at some .... This has restricted the practical application of this type of motor. Ball bearing motor A ball bearing motor is an unusual electric motor that consists of two ball bearing type bearings, with the inner ... ref References references Electric motor Category Electric motors electric power stub de Gleichstrommotor ... magnetic field experiences a torque or force known as Lorentz force. Advantages of a brushed DC motor include low initial cost, high reliability, and simple control of motor speed. Disadvantages are high ... the motor to the spinning rotor. Advantages of brushless motors include long life span, little or no maintenance ...   more details



  1. Motor Z

    Orphan date February 2009 Incomplete date February 2009 Motor Z is a Brazil ian Scooter motorcycle motor scooter maker, building electric motorcycles with China Chinese parts. Electric models S 500 V 500 S 800 SS 500 S 1000 See also Scooter motorcycle Scooter stand up External links http www.motor z.com.br Category Scooter manufacturers Category Electric scooters pt Motor Z ...   more details



  1. Electrostatic motor

    An electrostatic motor or capacitor motor is a type of electric motor based on the attraction and repulsion of electric charge . Usually, electrostatic motors are the dual electronics dual of conventional coil based motors. They typically require a high voltage power supply, although very small motors employ lower voltages. Conventional electric motors instead employ magnetic attraction and repulsion, and require high current at low voltages. In the 1750s, the first electrostatic motors were developed by Benjamin Franklin and Andrew Gordon inventor Andrew Gordon . Today the electrostatic motor finds frequent use in micro mechanical Microelectromechanical systems MEMS systems where their drive voltages are below 100 volts, and where moving charged plates are far easier to fabricate than coils ... Motor See also Electrostatic generator Electric motor External articles and further reading ... project details&ID 53&lng en tech stub Category Electric motors de Elektrostatischer Motor fr Machine lectrostatique nl Elektrostatische motor ja ta ... GENERATOR OR MOTOR STRUCTURE 300 NON DYNAMOELECTRIC 308 Charge accumulating 309 Electrostatic Patents US patent 633829 J. Gallegos Static electric Machine US patent 735621 Elihu Thomson E. Thomson Electrostatic motor US patent 993561 Harold B. Smith Apparatus for transforming electrical energy ... Townsend Brown T. T. Brown Electrostatic motor 1934 09 25 US patent 3433981 B. Bollee Electrostatic Motor ed. Electrostatics from Atmospheric Electricity US patent 3436630 B. Bollee Electrostatic Motor ... M., http www.coe.ufrj.br acmq elmotor.html An Electrostatic Linear Motor . 24 January 2002. C.L. Stong, http f3wm.free.fr sciences jefimenko.html Electrostatic Motors Are Powered By Electric Field of the Earth ... Motor . http users.tm.net lapointe Electrostatic Motor.html ElectrostaticMotor . tm.net. Fast ... . Heavy Lifting Electrostatic Motors at Univ. Tokyo http www.aml.t.u tokyo.ac.jp movies es motor ...   more details



  1. Repulsion motor

    A repulsion motor is a type of electric motor for use on alternating current . It was formerly used as a traction motor for electric train s but has been superseded by other types of motors and is now .... As the motor torque is due to repulsion action, this motor is named as repulsion motor. Construction The motor has a stator and a Rotor electric rotor but there is no electrical connection between the two ... bars were short circuited together to create the equivalent of a squirrel cage induction motor. See also Electric motor AC motors SR Class CP electric multiple unit SR Class SL electric multiple unit Electric motor Sources The Electrical Year Book 1937, published by Emmott and Company Limited, Manchester ... in a repulsion motor could be explained as follows. Figure 1 shows a two pole motor with its magnetic ... is connected to a Commutator electric commutator which is in contact with a pair of Short circuit short circuited Brush electric brushes which can be moved to change their angular position relative to an imaginary line drawn through the axis of the stator. The motor can be started, stopped and reversed ... connected to the supply.. Types of Repulsion Motors Types of repulsion motor are listed ... to match the torque speed characteristics of the motor as closely as possible to the service it was required to provide. 1. Repulsion motor 2. Compensated repulsion motor 3. Repulsion Start, induction run motor 4. Repulsion induction motor Elihu Thomson The Elihu Thomson motor is the original repulsion motor and is described in Construction above. the motor is called as elihu thomson motor. Deri The Miksa D ri Deri motor is similar to the Elihu Thomson type but has two pairs of short circuited ... repulsion motor devised independently by Latour and by Winter Eichberg . There are, again ... is in Series and parallel circuits series with the stator winding of the motor. This motor has the same torque speed characteristics as an ordinary series wound motor. Atkinson The Atkinson motor has ...   more details



  1. Traction motor

    see also Electric vehicle Electric motor Traction motor refers to an electric motor providing the primary ... types diesel electric , electric hybrid vehicles and battery electric vehicles . Additionally, electric motors in other products such as the main motor in a washing machines washing machine ... motors drove each axle through a quill drive . The bipolar electric motor Bi Polar electric locomotives built by General Electric for the Milwaukee Road had direct drive motors. The rotating shaft of the motor was also the axle for the wheels. In the case of French TGV power car s, a motor mounted ... The DC motor was the mainstay of electric traction drives on both electric and diesel electric locomotives ..., the motor acts as a regenerative brake the motor generates electric power, returns that power to the electric ... air. Manufacturers main List of traction motor manufacturers See also Air cooling Electric vehicle ... Information About Electric Vehicles Electric motor DEFAULTSORT Traction Motor Category Locomotive parts Category Electric motors de Fahrmotor es Motor de tracci n ru simple Traction ... traction . Traction motors are used in electrically powered rail vehicles such as electric multiple unit s and electric locomotive s, other electric vehicles such as electric milk float s, elevator s and conveyors ..., higher reliability Alternating current AC induction motor s known as asynchronous traction motors. synchronous motor Synchronous AC motor s are also occasionally used, as in the French TGV . Before the mid 20th century, a single large motor was often used to drive multiple driving wheel s through ... Crocodile locomotive Swiss Crocodiles . It is now standard practice to provide one traction motor driving each axle through a gear drive. Usually, the traction motor is three point suspended between the bogie frame and the driven axle this is referred to as a nose suspended traction motor . The problem with such an arrangement is that a portion of the motor s weight is unsprung, increasing ...   more details



  1. Unipolar motor

    Refimprove date December 2009 Image Cassette motor.jpg thumb Mergeto Homopolar motor discuss Talk Unipolar motor date March 2009 Image with unknown copyright status removed Image Unipolar.GIF A unipolar motor is a type of small DC electric motor commonly found in small, portable cassette player s. It is also used in stepper motors ref http books.google.com books?id 6JRcqhVUszEC&pg PA260&pgnum 260 v onepage&q&f false Physical computing sensing and controlling the physical world with computers , Dan O sullivan & Dan Igoe. Thomson 2004 ref . Its name is derived from its construction, which employs a magnetic strip wrapped around the inner wall of the housing such that one of its poles faces the inside, while the other faces outward. Although a true Magnetic monopole unipolar magnet magnet with only one pole exists only in theory, the name is appropriate for its function. The motor behaves as if the magnet were unipolar, since only one of its poles is influencing the armature. References references Electric motor DEFAULTSORT Unipolar Motor Category Electric motors ...   more details



  1. Motor fuel

    Primary sources date July 2010 Notability date July 2010 A motor fuel is a fuel that is used to provide motive power power to motor vehicle s. Currently, the majority of motor vehicles worldwide are powered by gasoline or diesel fuel diesel . Other energy sources include ethanol fuel ethanol , biodiesel , Propane Vehicle fuel propane , compressed natural gas CNG , battery electric vehicle electric batteries charged from an external source, and hydrogen vehicle hydrogen . See also Alternative fuel vehicle Biofuel Ethanol fuel Category Fuels auto stub petroleum stub ...   more details



  1. Homopolar motor

    spin. A homopolar motor has a magnetic field along the axis of rotation and an electric current that at some ... polarity polarity change. Homopolar electric motor motors necessarily have a single turn ... generators Barlow s wheel References reflist Electric motor External links http HomopolarMotorKit.com ... en.html 2 Electromagnetic Rotation the key experiments DEFAULTSORT Homopolar Motor Category Electric ...Refimprove date January 2008 Image Homopolar Motor Large.jpg thumb 250px DIY simple homopolar motor made ... of motor. Description It is not necessary for the magnet to move, or even to be in contact with the rest of the motor its sole purpose is to provide a magnetic field that will interact with the magnetic ... and allow the wire to rotate freely while closing the electric circuit even at the axis of rotation . Again, where at some point along the electric loop the current in the wire is not parallel ... electrical motors, both the orientation and magnitude of the magnetic field and the electric current do not change. Like most electro mechanical machines a homopolar motor is reversible so that when electrical ... . History The homopolar motor was the first ever device to produce rotation from electromagnetism ... plate of the homopolar motor, referred to on p. 283 of Faraday s second article . http www.archive.org ... field or electric current, and no recognizable North South pole interaction between the magnet and the electric circuit. People often think that line of force field lines cannot be used to understand homopolar machines, or that the field lines rotate see Faraday Paradox . As the homopolar motor ... through the much more conductive nickel coating. Running the motor for long periods of time can ... the less nickel there is to conduct the current around the neodymium compound. The homopolar motor ... resulting where the electric current makes an angle with the magnetic lines of force. The homopolar motor provides a simple demonstration of the Lorentz force . Gallery gallery File Motor homopolar.png ...   more details




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