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Repulsion Motor
A repulsion motor is a type of electric motor which runs on alternating current (AC). It was formerly used as a traction motor for electric trains (e.g. SR Class CP and SR Class SL electric multiple units) but has been superseded by other types of motors. Repulsion motors are classified as Single-phase electric power, single phase motors. In repulsion motors the stator windings are connected directly to the AC Electric power system, power supply and the Rotor (electric), rotor is connected to a Commutator (electric), commutator and Brush (electric), brush assembly, similar to that of a direct current (DC) motor.''The Electrical Year Book 1937,'' published by Emmott and Company Limited, Manchester, England, pp 79–82 Construction The motor has a stator and a Rotor (electric), rotor but there is no electrical connection between the two and the rotor current is generated by Electromagnetic induction, induction. The rotor winding is connected to a Commutator (electric), commutato ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deri Repulsion Type Motor Midi E 3301
Deri may refer to : People * Aryeh Deri Aryeh Makhlouf Deri (; ), also Arie Deri, Arye Deri, or Arieh Deri (born 17 February 1959), is an Israeli politician and one of the founders of the Shas political party who served as the Vice Prime Minister, Minister of Health, and Minister ... (born 1959), an Israeli politician * Frances Deri (1880–1971), an Austrian psychoanalyst * Miksa Déri (1854–1938), a Hungarian electrical engineer * Shlomo Deri (fl. 2000s), an Israeli politician * Yehuda Deri (fl. 1990s/2000s), an Israeli rabbi Other uses * Deri, Caerphilly, a village in South Wales ** Deri RFC, a rugby club * Afon Deri, a river in Mid Wales * Digital Enterprise Research Institute (DERI), Ireland See also * Dari (other) {{disambig, geo, surname ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Arc
An electric arc (or arc discharge) is an electrical breakdown of a gas that produces a prolonged electrical discharge. The electric current, current through a normally Electrical conductance, nonconductive medium such as air produces a plasma (physics), plasma, which may produce visible light. An arc discharge is initiated either by thermionic emission or by field emission. After initiation, the arc relies on thermionic emission of electrons from the electrodes supporting the arc. An arc discharge is characterized by a lower voltage than a glow discharge. An archaic term is voltaic arc, as used in the phrase "voltaic arc lamp". Techniques for arc suppression can be used to reduce the duration or likelihood of arc formation. In the late 19th century, Arc lamp, electric arc lighting was in wide use for Street light#Arc lamps, public lighting. Some low-pressure electric arcs are used in many applications. For example, fluorescent lamp, fluorescent tubes, mercury, sodium, and met ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miksa Déri
Miksa Déri (27 October 1854 in Bács, Austrian Empire – 3 March 1938) was a Hungarian electrical engineer, inventor, power plant builder. He contributed with his partners Károly Zipernowsky and Ottó Bláthy, in the development of the closed iron core transformer and the ZBD model. His other important invention was the constant voltage AC electrical generator in the Ganz Works in 1883. The missing link of a full Voltage sensitive - voltage intensive (VSVI) system was the reliable AC Constant Voltage generator. Therefore, the invention of the constant voltage generator at the Ganz Works had crucial role in the beginnings of the industrial scale AC power generating, because only these types of generators can produce a stated output voltage, regardless of the value of the actual load. ZBD was an abbreviation of the three men's names: Zipernowsky, Bláthy and Déri. Déri is also noted for inventing the single phase type of repulsion motor Education * There is secon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deri 2
{{disambig, geo, surname ...
Deri may refer to : People * Aryeh Deri (born 1959), an Israeli politician * Frances Deri (1880–1971), an Austrian psychoanalyst * Miksa Déri (1854–1938), a Hungarian electrical engineer * Shlomo Deri (fl. 2000s), an Israeli politician * Yehuda Deri (fl. 1990s/2000s), an Israeli rabbi Other uses * Deri, Caerphilly, a village in South Wales **Deri RFC, a rugby club * Afon Deri, a river in Mid Wales * Digital Enterprise Research Institute (DERI), Ireland See also * Dari (other) Dari is used as the name for a variety of Persian spoken in Afghanistan, and is also used more broadly as a name for New Persian, describing all contemporary varieties of Persian. Dari may also refer to: People * Achraf Dari (born 1999), a Morocc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deri 1
Deri may refer to : People * Aryeh Deri Aryeh Makhlouf Deri (; ), also Arie Deri, Arye Deri, or Arieh Deri (born 17 February 1959), is an Israeli politician and one of the founders of the Shas political party who served as the Vice Prime Minister, Minister of Health, and Minister ... (born 1959), an Israeli politician * Frances Deri (1880–1971), an Austrian psychoanalyst * Miksa Déri (1854–1938), a Hungarian electrical engineer * Shlomo Deri (fl. 2000s), an Israeli politician * Yehuda Deri (fl. 1990s/2000s), an Israeli rabbi Other uses * Deri, Caerphilly, a village in South Wales ** Deri RFC, a rugby club * Afon Deri, a river in Mid Wales * Digital Enterprise Research Institute (DERI), Ireland See also * Dari (other) {{disambig, geo, surname ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elihu Thomson
Elihu Thomson (March 29, 1853 – March 13, 1937) was an English-American engineer and inventor who was instrumental in the founding of major electricity, electrical companies in the United States, the United Kingdom and France. Early life He was born in Manchester, England, on March 29, 1853, but his family moved to Philadelphia in the United States in 1858. and Thomson attended Central High School (Philadelphia), Central High School in Philadelphia and graduated in 1870. Thomson took a teaching position at Central, and in 1876, at the age of twenty-three, held the chair of Chemistry. In 1880, he left Central to pursue research in the emerging field of electrical engineering. Electrical innovations With Edwin J. Houston, a former teacher and later colleague of Thomson's at Central High School, Thomson founded the Thomson-Houston Electric Company. Notable inventions created by Thomson during this period include an arc-lighting system, an automatically regulated three-coi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torque
In physics and mechanics, torque is the rotational analogue of linear force. It is also referred to as the moment of force (also abbreviated to moment). The symbol for torque is typically \boldsymbol\tau, the lowercase Greek letter ''tau''. When being referred to as moment of force, it is commonly denoted by . Just as a linear force is a push or a pull applied to a body, a torque can be thought of as a twist applied to an object with respect to a chosen point; for example, driving a screw uses torque to force it into an object, which is applied by the screwdriver rotating around its axis to the drives on the head. Historical terminology The term ''torque'' (from Latin , 'to twist') is said to have been suggested by James Thomson and appeared in print in April, 1884. Usage is attested the same year by Silvanus P. Thompson in the first edition of ''Dynamo-Electric Machinery''. Thompson describes his usage of the term as follows: Today, torque is referred to using d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lenz's Law
Lenz's law states that the direction of the electric current Electromagnetic induction, induced in a Electrical conductor, conductor by a changing magnetic field is such that the magnetic field created by the induced current opposes changes in the initial magnetic field. It is named after physicist Heinrich Lenz, who formulated it in 1834. The Induced current is the current generated in a wire due to change in magnetic flux. An example of the induced current is the current produced in the Electric generator, generator which involves rapidly rotating a coil of wire in a magnetic field. It is a Scientific law, qualitative law that specifies the direction of induced current, but states nothing about its magnitude. Lenz's law predicts the direction of many effects in electromagnetism, such as the direction of voltage induced in an inductor or Electromagnetic coil, wire loop by a changing current, or the drag force of eddy currents exerted on moving objects in the magnetic field. L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electromotive Force
In electromagnetism and electronics, electromotive force (also electromotance, abbreviated emf, denoted \mathcal) is an energy transfer to an electric circuit per unit of electric charge, measured in volts. Devices called electrical ''transducers'' provide an emf by Energy transformation, converting other forms of energy into electrical energy. Other types of electrical equipment also produce an emf, such as Battery (electricity), batteries, which convert chemical energy, and Electric generator, generators, which convert mechanical energy. This energy conversion is achieved by Force, physical forces applying Work (physics), physical work on electric charges. However, electromotive force itself is not a physical force, and ISO/International Electrotechnical Commission, IEC standards have deprecated the term in favor of source voltage or source tension instead (denoted U_s). An Hydraulic analogy, electronic–hydraulic analogy may view emf as the mechanical work done to water by a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salient Pole
The rotor is a moving component of an electromagnetic system in the electric motor, electric generator, or alternator. Its rotation is due to the interaction between the windings and magnetic fields which produces a torque around the rotor's axis.Staff. "Understanding Alternators. What Is an Alternator and How Does It Work." N.p., n.d. Web. 24 November 2014 . Early development An early example of electromagnetic rotation was the first rotary machine built by Ányos Jedlik with electromagnets and a commutator, in 1826-27. Other pioneers in the field of electricity include Hippolyte Pixii who built an alternating current generator in 1832, and William Ritchie's construction of an electromagnetic generator with four rotor coils, a commutator and brushes, also in 1832. Development quickly included more useful applications such as Moritz Hermann Jacobi's motor that could lift 10 to 12 pounds with a speed of one foot per second, about 15 watts of mechanical power in 1834. In 1835 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetic Field
A magnetic field (sometimes called B-field) is a physical field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field. A permanent magnet's magnetic field pulls on ferromagnetic materials such as iron, and attracts or repels other magnets. In addition, a nonuniform magnetic field exerts minuscule forces on "nonmagnetic" materials by three other magnetic effects: paramagnetism, diamagnetism, and antiferromagnetism, although these forces are usually so small they can only be detected by laboratory equipment. Magnetic fields surround magnetized materials, electric currents, and electric fields varying in time. Since both strength and direction of a magnetic field may vary with location, it is described mathematically by a function (mathematics), function assigning a Euclidean vector, vector to each point of space, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Repulsion Als Symbol Linkslauf
Repulsion may refer to: * Disgust, or repulsion, an emotional response to something considered offensive or unpleasant * Repulsion, a type of genetic linkage * Repulsion in physics, Coulomb's law ** Repulsion in diamagnetism, which pushes two bodies away from each other * Repulsion theory, in botany In the arts: * Repulsion (band), a grindcore band * ''Repulsion'' (film), a 1965 horror film directed by Roman Polański * "Repulsion", a 1985 song by Dinosaur Jr See also * Aversion * Repulse (other) Repulse may refer to: Places * Repulse Island National Park, Queensland, Australia * Repulse Bay, Hong Kong ** Repulse Bay Beach, a beach in Repulse Bay, Hong Kong ** The Repulse Bay, a residential building in Repulse Bay, Hong Kong * Naujaat ... * Repulsive force (other) * {{Disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
