Tokyu 300 Series
The is a series of Tram, articulated trams built by Tokyu Car Corporation in 1999 for the Tōkyū Setagaya Line. Technical specifications The trains are long, wide, and feature an IGBT-VVVF inverter system. History The trains entered revenue service on 11 July 1999. They replaced the older , , , and . Livery variations In commemoration of the 110th anniversary of the Tamagawa Electric Railway in April 2017, set 305 received a special wrapping. For the 50th anniversary of the Setagaya Line in May 2019, set 308 received a cat-themed wrapping. File:Tōkyū 308 & 310 at Nishi-taishidō Station.jpg, Sets 308 & 310 at Nishi-taishidō Station in 2019 File:Model 300-307 of Tokyo Kyuko Kabushikigaisha.JPG, Set 307 in 2007 File:Model 300-308 of Tokyo Kyuko Kabushikigaisha.JPG, Set 308 in 2007 File:Model 300-309 of Tokyo Kyuko Kabushikigaisha.JPG, Set 309 in 2007 File:Model 300-303 of Tokyo Kyuko Kabushikigaisha.JPG, Set 303 in 2007 From 10 April 2022, a 300 series set is due to rece ...
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Tokyu Car Corporation
Tokyu may refer to: * Tokyu Group, a group of companies centered on Tokyu Corporation ** Tokyu Corporation, a Japanese railway company, the largest member and parent company of the group ** Tokyu Car Corporation, a former Japanese railway vehicle manufacturer, now the Japan Transport Engineering Company ** Tokyu Hands Creative Life Store, a member of the Tokyu Group ** Tokyu Department Store, a department store chain based in Japan See also * Tokyo (other) or Tokyo Metropolis is the capital of Japan. Tokyo may also refer to: Places * Edo, former name of Tokyo until 1868 *Tokyo Prefecture (1868–1943), Tokyo Prefecture, former Japanese prefecture 1868–1943 that preceded Tokyo *Tokyo City, for ...

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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Tokyu Setagaya Line
Tokyu may refer to: * Tokyu Group, a group of companies centered on Tokyu Corporation ** Tokyu Corporation, a Japanese railway company, the largest member and parent company of the group ** Tokyu Car Corporation, a former Japanese railway vehicle manufacturer, now the Japan Transport Engineering Company ** Tokyu Hands Creative Life Store, a member of the Tokyu Group ** Tokyu Department Store, a department store chain based in Japan See also * Tokyo (other) or Tokyo Metropolis is the capital of Japan. Tokyo may also refer to: Places * Edo, former name of Tokyo until 1868 *Tokyo Prefecture (1868–1943), Tokyo Prefecture, former Japanese prefecture 1868–1943 that preceded Tokyo *Tokyo City, for ...

VVVF
A variable-frequency drive (VFD) is a type of motor drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and, depending on Topology (electrical circuits), topology, to control associated voltage or electric current, current variation., quote is per definition on p. 4 of NEMA Standards Publication ICS 7.2-2021. VFDs may also be known as 'AFDs' (adjustable-frequency drives), 'ASDs' (adjustable-speed drives), 'VSDs' (variable-speed drives), 'AC drives', 'micro drives', 'inverter drives' or, simply, 'drives'. VFDs are used in applications ranging from small appliances to large compressors. An increasing number of end users are showing greater interest in electric drive systems due to more stringent emission standards and demand for increased reliability and better availability. Systems using VFDs can be more efficient than those using throttling control of fluid flow, such as in systems with pumps and damper control f ...
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IGBT
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 a ...
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Overhead Lines
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 are ...
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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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Tram
A tram (called a streetcar or trolley in North America) is a rail vehicle that travels on tramway tracks on public urban streets; some include segments on segregated right-of-way. The tramlines or networks operated as public transport are called tramways or simply trams/streetcars. Many recently built tramways use the contemporary term light rail. The vehicles are called streetcars or trolleys (not to be confused with trolleybus) in North America and trams or tramcars elsewhere. The first two terms are often used interchangeably in the United States, with ''trolley'' being the preferred term in the eastern US and ''streetcar'' in the western US. ''Streetcar'' or ''tramway'' are preferred in Canada. In parts of the United States, internally powered buses made to resemble a streetcar are often referred to as "trolleys". To avoid further confusion with trolley buses, the American Public Transportation Association (APTA) refers to them as "trolley-replica buses". In the Unit ...
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