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Keisei 3400 Series
The is a three-door commuter electric multiple unit (EMU) train type operated by the private railway operator Keisei Electric Railway in the Tokyo Tokyo (; ja, 東京, , ), officially the Tokyo Metropolis ( ja, 東京都, label=none, ), is the capital and List of cities in Japan, largest city of Japan. Formerly known as Edo, its metropolitan area () is the most populous in the world, ... area of Japan since 1993. The trains are not able to run on the Narita Sky Access line. Formations , the fleet consists of five eight-car sets, formed as shown below, with six motored cars. Cars 2 and 7 are each fitted with two single-arm pantographs, while car 5 has one. History The 3400 series trains entered service in 1993, and were built using the underframes and control equipment from the original AE series ''Skyliner'' Limited Express EMUs and steel bodies based on the (stainless steel bodied) 3700 series EMUs. Set 3408 was withdrawn in 2020. References External links ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daiei Sharyo
, based in Kobe, is one of the largest supermarket chains in Japan. In 1957, Isao Nakauchi founded the chain in Osaka near Sembayashi Station on the Keihan train line. Daiei is now under a restructuring process supported by Marubeni Corporation and ÆON Co., Ltd., another Japanese supermarket chain. Daiei Inc. runs more than 3,000 stores under the Daiei name as well as through its subsidiaries. In addition to groceries, Daiei is also a department store, selling electronics, home furnishings, and clothes. In terms of net sales, Daiei was formerly the largest retailer in Japan. However, total sales declined by nearly a quarter in the five years leading up to 2003. History The retail chain expanded rapidly in the 1970s and 1980s. Also, stronger sales from competitors such as Ito-Yokado, ÆON, and other regional supermarket chains have hurt Daiei's sales record in recent years. As a part of the series of bootstrap restructuring efforts to avoid filing for IRCJ ( Industrial Revita ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Multiple Units Of Japan
Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations. Various common phenomena are related to electricity, including lightning, static electricity, electric heating, electric discharges and many others. The presence of an electric charge, which can be either positive or negative, produces an electric field. The movement of electric charges is an electric current and produces a magnetic field. When a charge is placed in a location with a non-zero electric field, a force will act on it. The magnitude of this force is given by Coulomb's law. If the charge moves, the electric field would be doing work on the electric charge. Thus we can speak of electric potential at a certain point in space, which is equal to the work done by an external agent in carrying a unit of p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keisei 3700 Series
The is a commuter electric multiple unit (EMU) train type operated by the private railway operator Keisei Electric Railway in the Tokyo area of Japan since 1991. Operations The 3700 series eight-car sets operate on the Keisei Main Line between and , including inter-running services over the Toei Asakusa Line and Keikyu Main Line to and from Haneda Airport through the Keikyu Airport Line (), also known as or, more recently, , is a private railroad that connects inner Tokyo to Kawasaki, Yokohama, Yokosuka and other points on the Miura Peninsula in Kanagawa Prefecture. It also provides rail access to Haneda Airport in Tokyo. mea .... , the six-car sets are used solely on the Keisei Main Line. Formations , the fleet consists of 10 eight-car sets and three six-car sets. The sets are formed as follows, with car 1 at the Narita Airport end. 6-car sets Six-car sets 3828 and 3838 are formed as shown below, with four motored ("M") cars and two non-powered trailer ("T") cars. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keisei AE Series (1972)
The was a DC electric multiple unit (EMU) train type operated by the private railway operator Keisei Electric Railway on ''Skyliner'' limited express services to and from Narita International Airport in Japan. The "AE" stood for "Airport Express". First delivered in 1972, the trains operated between 1973 and 1993, and were replaced by Keisei AE100 series EMUs. History Five six-car sets were delivered in March 1972, entering service from December 1973 on reserved-seat limited express services between in Tokyo and before the opening of the nearby Narita Airport. The new ''Skyliner'' services started on 21 May 1978, serving the original Narita Airport Station (present-day Higashi-Narita Station), and a further two six-car AE series sets were delivered in time for the start of these services. The sets were lengthened from six to eight cars from July 1990 ahead of the start of services to the new Narita Airport Station directly beneath the airport complex in March 1991. Lengthenin ... [...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] |
Tokyo
Tokyo (; ja, 東京, , ), officially the Tokyo Metropolis ( ja, 東京都, label=none, ), is the capital and largest city of Japan. Formerly known as Edo, its metropolitan area () is the most populous in the world, with an estimated 37.468 million residents ; the city proper has a population of 13.99 million people. Located at the head of Tokyo Bay, the prefecture forms part of the Kantō region on the central coast of Honshu, Japan's largest island. Tokyo serves as Japan's economic center and is the seat of both the Japanese government and the Emperor of Japan. Originally a fishing village named Edo, the city became politically prominent in 1603, when it became the seat of the Tokugawa shogunate. By the mid-18th century, Edo was one of the most populous cities in the world with a population of over one million people. Following the Meiji Restoration of 1868, the imperial capital in Kyoto was moved to Edo, which was renamed "Tokyo" (). Tokyo was devastate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keisei Electric Railway
The (stylized as K'SEI since 2001) is a major private railway in Chiba Prefecture and Tokyo, Japan. The name ''Keisei'' is the combination of the kanji 京 from and 成 from , which the railway's main line connects. The combination uses different readings than the ones used in the city names. The railway's main line runs from Tokyo to Narita and the eastern suburb cities of Funabashi, Narashino, Yachiyo, and Sakura. Keisei runs an airport limited express train called the ''Skyliner'' from Ueno and to Narita International Airport. In addition to its railway business, the Keisei Electric Railway Company owns large bus and taxi services and some real estate holdings. It owns a large share of the Oriental Land Company which owns and manages the Tokyo Disney Resort. Keisei is listed on the Tokyo Stock Exchange and is a constituent of the Nikkei 225 index. History Keisei was founded on June 30, 1909 and began services on November 3, 1912, initially operating local train service ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overhead Catenary
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chopper (electronics)
In electronics, a chopper circuit is any of numerous types of electronic switching devices and circuits used in power control and signal applications. A chopper is a device that converts fixed DC input to a variable DC output voltage directly. Essentially, a chopper is an electronic switch that is used to interrupt one signal under the control of another. In power electronics applications, since the switching element is either fully on or fully off, its losses are low and the circuit can provide high efficiency. However, the current supplied to the load is discontinuous and may require smoothing or a high switching frequency to avoid undesirable effects. In signal processing circuits, use of a chopper stabilizes a system against drift of electronic components; the original signal can be recovered after amplification or other processing by a synchronous demodulator that essentially un-does the "chopping" process. Comparison (step down chopper and step up chopper) Comparison bet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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