Sotetsu 20000 Series
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Sotetsu 20000 Series
The is an electric multiple unit (EMU) commuter train type operated by the private railway operator Sagami Railway ("Sotetsu") in Japan in the Tokyo area since February 2018. Ultimately intended to be used on through-running services between Sotetsu and Tokyu Corporation lines commencing in late fiscal 2022, the first train entered revenue service on 11 February 2018, replacing a 7000 series set. Eight-car sets designated as 21000 series were announced in April 2021, the first of which entered service in September 2021. Design The fleet of ten-car 20000 series trainsets is being built by Hitachi at its Kasado Factory in Kudamatsu, Yamaguchi. Externally, the trains carry the "Yokohama Navy Blue" corporate livery introduced for refurbished 9000 series trains. Formation 20000 series The trains are formed as ten-car sets, as follows, with five motored ("M") cars and five non-powered trailer ("T") cars, and car 1 at the Yokohama end. 21000 series The trains are formed as eight- ...
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Hitachi
() is a Japanese multinational corporation, multinational Conglomerate (company), conglomerate corporation headquartered in Chiyoda, Tokyo, Japan. It is the parent company of the Hitachi Group (''Hitachi Gurūpu'') and had formed part of the Nissan Group, Nissan ''zaibatsu'' and later DKB Group and Fuyo Group of companies before DKB and Fuji Bank (the core Fuyo Group company) merged into the Mizuho Financial Group. As of 2020, Hitachi conducts business ranging from Information technology, IT, including Artificial intelligence, AI, the Internet of things, Internet of Things, and big data, to infrastructure. Hitachi is listed on the Tokyo Stock Exchange and Nagoya Stock Exchange and its Tokyo listing is a constituent of the Nikkei 225 and TOPIX Core30 indices. It is ranked 38th in the 2012 Fortune Global 500 and 129th in the 2012 Forbes Global 2000. History Hitachi was founded in 1910 by electrical engineer Namihei Odaira (1874–1951) in Ibaraki Prefecture. The company's firs ...
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Insulated-gate Bipolar Transistor
An insulated-gate bipolar transistor (IGBT) is a three-terminal power semiconductor device primarily used as an electronic switch, which, as it was developed, came to combine high efficiency and fast switching. It consists of four alternating layers (P–N–P–N) that are controlled by a metal–oxide–semiconductor (MOS) gate structure. Although the structure of the IGBT is topologically the same as a thyristor with a "MOS" gate ( MOS-gate thyristor), the thyristor action is completely suppressed, and only the transistor action is permitted in the entire device operation range. It is used in switching power supplies in high-power applications: variable-frequency drives (VFDs), electric cars, trains, variable-speed refrigerators, lamp ballasts, arc-welding machines, induction hobs, and air conditioners. Since it is designed to turn on and off rapidly, the IGBT can synthesize complex waveforms with pulse-width modulation and low-pass filters, so it is also used in switching ...
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Through Train
A through service is a concept of passenger transport that involves a vehicle travelling between lines, networks or operators on a regularly specified schedule, on which the passenger can remain on board without alighting. It may be in form of either the following: * A service where the vehicle travels between different lines, or systems of infrastructure, for example, a through train service between the mainline and underground railways. * A service where the vehicle changes its identity en-route without requiring passengers to alight, for example, a through tram service which runs as route 1 initially, then runs as route 2 for the latter half of the journey. The term through service may be extended to have a wider meaning encompassing a route which allows the passenger to travel without alighting, for example, in a route change announcement, if a route A-B and a route B-C is combined to A-B-C, it may be described as a new "through service" between A and C. This is in contrast with ...
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Colour Temperature
Color temperature is the color of light emitted by an idealized opaque, non-reflective body at a particular temperature measured in kelvins. The color temperature scale is used to categorize the color of light emitted by other light sources regardless of their temperature. Color temperature is a characteristic of visible light that has important applications in lighting, photography, videography, publishing, manufacturing, astrophysics, horticulture, and other fields. In practice, color temperature is meaningful only for light sources that do in fact correspond somewhat closely to the color of some black body, i.e., light in a range going from red to orange to yellow to white to bluish white; it does not make sense to speak of the color temperature of, e.g., a green or a purple light. Color temperature is conventionally expressed in kelvins, using the symbol K, a unit of measure for absolute temperature. Color temperatures over 5000 K are called "cool colors" (bluish), ...
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Sagami Railway 20000 Series (Car Equipment) 01na
Sagami may refer to: *Sagami, an 11th-century ''waka'' poet *Sagami Province, an old province in Japan *Sagami River, a river in Kanagawa and Yamanashi *Sagami Bay, a bay south of Kanagawa Prefecture in Honshū *Sagami Line, a railway roughly along the east bank of the Sagami River *Sagami Railway, a railway company operating three lines in Kanagawa Prefecture, Japan **Sagami Railway Main Line, a railway line extending from Yokohama to Ebina **Sagami Railway Izumino Line Sagami may refer to: *Sagami, an 11th-century ''waka'' poet *Sagami Province, an old province in Japan *Sagami River, a river in Kanagawa and Yamanashi *Sagami Bay, a bay south of Kanagawa Prefecture in Honshū *Sagami Line, a railway roughly along ..., a railway line extending from Futamatagawa in Yokohama to Shōnandai in Fujisawa * Sagami-ji, a Buddhist temple in Hyōgo, Japan {{disambig ...
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Moquette
Moquette, derived from the French word for carpet, is a type of woven pile fabric in which cut or uncut threads form a short dense cut or loop pile. As well as giving it a distinctive velvet-like feel, the pile construction is particularly durable, and ideally suited to applications such as public transport. Its upright fibres form a flexible, non-rigid surface, which are constantly displaced to give durability and anti-stain benefits. Traditional moquette fabrics are made from a wool nylon face with an interwoven cotton backing. Origin Moquette originated in France, where it was woven by hand. The standard width was a Flemish ell of 27 inches. There were two finishes: moquette ''velouté'', which had a cut pile like English Wilton, and moquette ''bouclé'', which had an uncut pile like Brussels carpet. It is still woven in Yorkshire using traditional techniques. A long-standing moquette manufacturer is Holdsworth Fabrics, which dates back to 1822. Examples The most famous moqu ...
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Sotetsu 9000 Series
The is a DC electric multiple unit (EMU) type operated by the private railway operator Sagami Railway (Sotetsu) on commuter services in Kanagawa Prefecture, Japan, since 1993. Formations , the fleet consists of seven ten-car sets, numbered 9701 to 9707, formed as shown below with six motored ("M") cars and four non-powered trailer ("T") cars, and car 1 at the Yokohama end. Unrefurbished sets The unrefurbished sets are formed as follows. The motored cars each have one pantograph. Refurbished sets The refurbished sets are formed as follows. The motored cars each have one pantograph. Interior Passenger accommodation consists mostly of longitudinal bench seating, but cars 5 and 8 include transverse seating bays. History The trains were built by Tokyu Car Corporation in Yokohama is the second-largest city in Japan by population and the most populous municipality of Japan. It is the capital city and the most populous city in Kanagawa Prefecture, with a 2020 popul ...
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Tokyu Corporation
The is a Japanese multinational ''keiretsu'' ( conglomerate) holding company headquartered in Shibuya, Tokyo. Its main operation is , a wholly owned subsidiary operating railways in the Greater Tokyo Area. History The oldest predecessor of company was the , opened in 1908; the railway's operations were converted into a company in 1910. Keita Gotō, now known as a notable Japanese industrialist, was appointed as the CEO of the Musashi Electric Railway in 1920 and later he began a mass expansion program. The most important predecessor was first registered on September 2, 1922, as the and is related to the construction of Den-en-chōfu (it was originally founded by the developers of Den-en-chōfu); it was acquired by the Musashi Electric Railway in 1924, shortly before Musashi was renamed into the , also known as the Toyoko, in the same year. After Musashi/Toyoko's acquisition, the Meguro-Kamata Electric Railway initially operated as a subsidiary of Toyoko. It was not unti ...
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Private Railway
A private railway is a railroad run by a private business entity (usually a corporation but not need be), as opposed to a railroad run by a public sector. Japan In Japan, , commonly simply ''private railway'', refers to a public transit railway owned and operated by private sector, almost always organized as a joint-stock company, or in Japanese: kabushiki gaisha (lit. stock company), but may be any type of private business entity. Although the Japan Railways Group (JR Group) companies are also kabushiki gaishas, they are not classified as private railways because of their unique status as the primary successors of the Japanese National Railways (JNR). Voluntary sector railways (semi-public) are additionally not classified as ''shitetsu'' due to their origins as rural, money-losing JNR lines that have since been transferred to local possession, in spite of their organizational structures being corporatized. Among ''private railways'' in Japan, the categorizes 16 companies as "ma ...
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Electric Multiple Unit
An electric multiple unit or EMU is a multiple-unit train consisting of self-propelled carriages using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a number of the carriages. An EMU is usually formed of two or more semi-permanently coupled carriages, but electrically powered single-unit railcars are also generally classed as EMUs. The great majority of EMUs are passenger trains, but versions also exist for carrying mail. EMUs are popular on commuter and suburban rail networks around the world due to their fast acceleration and pollution-free operation. Being quieter than diesel multiple units (DMUs) and locomotive-hauled trains, EMUs can operate later at night and more frequently without disturbing nearby residents. In addition, tunnel design for EMU trains is simpler as no provision is needed for exhausting fumes, although retrofitting existing limited-clearance tunnels to accommodate the ...
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Pantograph (transport)
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 ...
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