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China Railways Class 6K
The 6K is a Japanese-built electric locomotive used in China. It is developed and built by Kawasaki Heavy Industries and Mitsubishi Electric. The design of 6K is based on JNR Class ED75 and EF66 electric locomotives. It is the first locomotive with Bo-Bo-Bo wheel arrangement used in China. Production In total 85 6Ks were built between 1986 and 1987. Equipment Each 6K locomotive uses CLG-616 phase splitter A phase splitter is a device that separates a signal into multiple phases (or polarities). The term is most often applied to amplifiers that produce two "balanced" voltage outputs: of equal amplitude but opposite polarity (i.e. 180 degrees phase ... and 6 Mitsubishi Electric MB-530-AVR DC traction motors. Performance 6K was one of the most reliable electric locomotives in China compared with SS1, SS2 and SS3 at the time of entering service. China later made SS7 locomotive with reference to the Tri-Bo wheel arrangement of 6K, the breakdown rate, however, was still high, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kawasaki Heavy Industries
(or simply Kawasaki) is a Japanese Public company, public multinational corporation manufacturer of motorcycles, engines, Heavy equipment (construction), heavy equipment, aerospace and Military, defense equipment, rolling stock and ships, headquartered in Chūō-ku, Kobe, Chūō, Kobe and Minato, Tokyo, Minato, Tokyo, Japan. It is also active in the production of industrial robots, gas turbines, pumps, boilers and other industrial products. The company is named after its founder, Kawasaki Shōzō, Shōzō Kawasaki. KHI is known as one of the three major heavy industrial manufacturers of Japan, alongside Mitsubishi Heavy Industries and IHI Corporation, IHI. Prior to the World War II, Second World War, KHI was part of the Kobe Kawasaki ''zaibatsu'', which included JFE Holdings, Kawasaki Steel and K Line, Kawasaki Kisen. After the conflict, KHI became part of the DKB Group (''keiretsu''). History Kawasaki Shōzō, Shōzō Kawasaki, born in 1836, was involved with the marine indu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
25 KV AC
Railway electrification systems using alternating current (AC) at are used worldwide, especially for high-speed rail. It is usually supplied at the standard utility frequency (typically 50 or 60Hz), which simplifies traction substations. The development of 25kV AC electrification is closely connected with that of successfully using utility frequency. This electrification is ideal for railways that cover long distances or carry heavy traffic. After some experimentation before World War II in Hungary and in the Black Forest in Germany, it came into widespread use in the 1950s. One of the reasons why it was not introduced earlier was the lack of suitable small and lightweight control and rectification equipment before the development of solid-state rectifiers and related technology. Another reason was the increased clearance distances required where it ran under bridges and in tunnels, which would have required major civil engineering in order to provide the increased clearanc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overhead Line
An overhead line or overhead wire is an electrical cable that is used to transmit electrical energy to electric locomotives, trolleybuses or trams. It is known variously as: * Overhead catenary * Overhead contact system (OCS) * Overhead equipment (OHE) * Overhead line equipment (OLE or OHLE) * Overhead lines (OHL) * Overhead wiring (OHW) * Traction wire * Trolley wire This article follows the International Union of Railways in using the generic term ''overhead line''. An overhead line consists of one or more wires (or rails, particularly in tunnels) situated over rail tracks, raised to a high electrical potential by connection to feeder stations at regular intervals. The feeder stations are usually fed from a high-voltage electrical grid. Overview Electric trains that collect their current from overhead lines use a device such as a pantograph, bow collector or trolley pole. It presses against the underside of the lowest overhead wire, the contact wire. Current collectors ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pantograph (rail)
A pantograph (or "pan" or "panto") is an apparatus mounted on the roof of an electric train, tram or electric bus to collect power through contact with an overhead line. By contrast, battery electric buses and trains are charged at charging stations. The pantograph is a common type of current collector; typically, a single or double wire is used, with the return current running through the rails. The term stems from the resemblance of some styles to the mechanical pantographs used for copying handwriting and drawings. Invention The pantograph, with a low-friction, replaceable graphite contact strip or "shoe" to minimise lateral stress on the contact wire, first appeared in the late 19th century. Early versions include the bow collector, invented in 1889 by Walter Reichel, chief engineer at Siemens & Halske in Germany, and a flat slide-pantograph first used in 1895 by the Baltimore and Ohio Railroad The familiar diamond-shaped roller pantograph was devised and patented b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitsubishi Electric
, established on 15 January 1921, is a Japanese multinational electronics and electrical equipment manufacturing company headquartered in Tokyo, Japan. It is one of the core companies of Mitsubishi. The products from MELCO include elevators and escalators, high-end home appliances, air conditioning, factory automation systems, train systems, electric motors, pumps, semiconductors, digital signage, and satellites. In the United States, products are manufactured and sold by Mitsubishi Electric United States headquartered in Cypress, California. History MELCO was established as a spin-off from the Mitsubishi Group's other core company Mitsubishi Heavy Industries, then Mitsubishi Shipbuilding, as the latter divested a marine electric motor factory in Kobe, Nagasaki. It has since diversified to become the major electronics company. MELCO held the record for the fastest elevator in the world, in the 70-story Yokohama Landmark Tower, from 1993 to 2005. The company acquired Nihon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JNR Class ED75
The is a Bo-Bo wheel arrangement AC electric locomotive type operated on passenger and freight services in Japan since 1963. A total of 302 locomotives were built by Hitachi, Mitsubishi, and Toshiba between 1963 and 1976. , just five locomotives remained in service, all operated by JR East. Variants * ED75-0: Numbers ED75-1 – 160 * ED75-300: Numbers ED75-301 – 311 * ED75-500: Number ED75-501 * ED75-700: Numbers ED75-701 – 791 * ED75-1000: Numbers ED75-1001 – 1039 ED75-0 This was the original type. Two prototypes, ED75 1 and 2, were delivered in 1963, built by Hitachi and Mitsubishi. Following test running, a further 158 locomotives were built from 1964 by Hitachi, Mitsubishi, and Toshiba. Locomotive numbers 50 to 100 were equipped for cold regions, and were fitted with icicle cutters above the driving cab windows. , no Class ED75-0 locomotives remained in service. ED75-300 11 Class ED75-300 locomotives were built from 1965 to 1968 by Hitachi and Mitsubishi for use in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JNR Class EF66
The is a six-axle, three-bogied (Bo′Bo′Bo′) DC electric locomotive designed for fast freight used by Japanese National Railways (JNR) and later operated by its descendants JR West and JR Freight. , 39 locomotives remained in service, all operated by JR Freight. Variants * EF66-900: Prototype locomotive EF66 901, delivered in 1966 * EF66-0: Full-production type (EF66 1 – 55), built 1968 to 1975 * EF66-100: Later type (EF66 101 – 133), built 1989 to 1991 Technical The locomotives were designed to be able to haul 1,000-tonne trains at . Each traction motor has a power output of , (about 50% more powerful than the Class EF65). The bogies have an air suspension system to limit the impulsive forces on the track. Operations During the JNR era, these locomotives were used for freight trains and also for passenger work - primarily hauling night trains such as the ''Hayabusa'' sleeping car limited express. By 1 April 2009, 73 EF66s (including all 33 EF66-100s) were in servic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bo-Bo-Bo
A Bo-Bo-Bo or Bo′Bo′Bo′ (UIC classification) is a locomotive with three independent two-axle bogies with all axles powered by separate traction motors. In the AAR system, this is simplified to B-B-B. The Bo-Bo-Bo configuration is often used to lower axle weight while keeping lateral forces low compared to a locomotive with two three-axle bogies, thus allowing the locomotive to use lightly laid track, in particular narrow-gauge railways. Bo-Bo-Bo locomotives The arrangement is extensively used on Italian and Japanese railways. Other examples include New Zealand's DJ, EW and EF classes; the Eurotunnel Class 9 locomotives, which were themselves derived from the New Zealand EF class; the Swiss SBB Re 6/6 (Re 620); the Russia Railways VL65, EP1 (EP1M), EP10 and EP20; and the South Korean Korail Class 8000. China imported 6K electric locomotive from Japan between 1986 and 1987. The Bo-Bo-Bo design was applied to SS7 series except SS7E. The State Rail Autho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phase Splitter
A phase splitter is a device that separates a signal into multiple phases (or polarities). The term is most often applied to amplifiers that produce two "balanced" voltage outputs: of equal amplitude but opposite polarity (i.e. 180 degrees phase difference), but sometimes is used to refer to the generation of quadrature signals (i.e. differing by 90 degrees). The term is not used for logic circuits producing complementary outputs, nor applied to differential amplifiers that have balanced inputs ''and'' outputs. Methods * using a unity gain inverting amplifier to provide an inverted copy of its input signal; * a split-load amplifier (also known as a "cathodyne" or "concertina phase splitter", especially in the context of vacuum tube implementations); a transistor implementation is shown in the diagram; * a differential pair amplifier can form a phase splitter in two ways: ** if the shared emitter (or cathode or source, for triodes or FETs) connection is fed from something app ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Railways SS7
The Shaoshan 7 (Chinese: 韶山7) is a type of electric locomotive used on the People's Republic of China's national railway system. They are widely used on electrified lines in the southwest part of China. Design The design of SS7 was influenced by the 6K, an electric locomotive model imported from Japan.SS7型电力机车 _trainnets.com The first SS7 was built in 1992 in Datong. In 1997, SS7s were used in Nanning-Kunming Railway. However, SS7's frequent failure lead to Datong Electric Locomotive Works making improvements to SS7s. Failure was reduced to just four cases in one year in 2004. SS7 Electric Locomotive was still produced as of 2007. Most of SS ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
25 KV AC Locomotives
5 (five) is a number, numeral and digit. It is the natural number, and cardinal number, following 4 and preceding 6, and is a prime number. It has attained significance throughout history in part because typical humans have five digits on each hand. In mathematics 5 is the third smallest prime number, and the second super-prime. It is the first safe prime, the first good prime, the first balanced prime, and the first of three known Wilson primes. Five is the second Fermat prime and the third Mersenne prime exponent, as well as the third Catalan number, and the third Sophie Germain prime. Notably, 5 is equal to the sum of the ''only'' consecutive primes, 2 + 3, and is the only number that is part of more than one pair of twin primes, ( 3, 5) and (5, 7). It is also a sexy prime with the fifth prime number and first prime repunit, 11. Five is the third factorial prime, an alternating factorial, and an Eisenstein prime with no imaginary part and real part of the for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bo-Bo-Bo Locomotives
A Bo-Bo-Bo or Bo′Bo′Bo′ (UIC classification) is a locomotive with three independent two-axle bogies with all axles powered by separate traction motors. In the AAR wheel arrangement, AAR system, this is simplified to AAR wheel arrangement#B-B-B, B-B-B. The Bo-Bo-Bo configuration is often used to lower axle weight while keeping lateral forces low compared to a locomotive with two three-axle bogies, thus allowing the locomotive to use lightly laid track, in particular Narrow gauge railway, narrow-gauge railways. Bo-Bo-Bo locomotives The arrangement is extensively used on Italy, Italian and Japanese railways. Other examples include New Zealand's New Zealand DJ class locomotive, DJ, NZR EW class, EW and New Zealand EF class locomotive, EF classes; the Eurotunnel Class 9 locomotives, which were themselves derived from the New Zealand EF class; the Swiss Swiss Federal Railways, SBB Re 6/6 (Re 620); the Russia Railways VL65, EP1 (electric locomotive), EP1 (EP1M), EP10 and EP20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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