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BR Class 321
The British Rail Class 321 are electric multiple unit (EMU) passenger trains built by British Rail Engineering Limited's Holgate Road carriage works in three batches between 1988 and 1991. The class uses alternating current (AC) overhead electrification. The design was successful and led to the development of the similar Class 320 and Class 322. Today the class is operated by Greater Anglia. Some have been converted to Class 320 and are operated by ScotRail. Description Three sub-classes were built. The first two were built for the Network SouthEast sector for operation on services from London Liverpool Street and London Euston, while the third was built for Regional Railways for use on West Yorkshire Passenger Transport Executive services from Leeds. As part of the privatisation of British Rail, ownership of the class passed from British Rail to the Eversholt Rail Group in April 1994. Each unit consists of four carriages: (DTC-PMS-TS-DTS) all units hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greater Anglia (train Operating Company)
Greater Anglia (legal name Abellio East Anglia Limited) is a train operating company in Great Britain owned as a joint venture by Abellio, the international arm of the state-owned Dutch national rail operator Nederlandse Spoorwegen, and the Japanese trading company Mitsui & Co. It operates the East Anglia franchise, providing the commuter and intercity services from its Central London terminus at London Liverpool Street to Essex, Suffolk, Norfolk and parts of Hertfordshire and Cambridgeshire as well as many regional services throughout the East of England. Abellio began operating the franchise, then known as the Greater Anglia franchise, in February 2012. Initially, it traded under the same name until it rebranded as Abellio Greater Anglia in December 2013. Shortly after taking over operations, the company initiated a series of projects to improve service levels, including the procurement of new trains and the launch of the 'Norwich in 90' programme to reduce travel times ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Trains
Central Trains was a train operating company in the United Kingdom owned by National Express that operated a variety of local and inter-regional trains from 2 March 1997 until 11 November 2007. Overview Created out of the Central division of Regional Railways during the Privatisation of British Rail, Central Trains passed into the private sector on 2 March 1997. The franchise was awarded to National Express, who maintained control of the company until its eventual demise in 2007. Central Trains employed over 2,400 staff. The company invested significantly in rolling stock, with significant orders for new trains placed and the fleet later further grown through the acquisition of trains made surplus by other companies. Despite a reduction in the area covered during the ten years of its existence, the company grew its core fleet from fewer than 300 passenger vehicles to a total of 379 – a capacity increase of over 28%. It also refurbished a number of its stations, introducing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway Disc Brake
A disc brake is a type of brake that uses the calipers to squeeze pairs of pads against a disc or a "rotor" to create friction. This action slows the rotation of a shaft, such as a vehicle axle, either to reduce its rotational speed or to hold it stationary. The energy of motion is converted into waste heat which must be dispersed. Hydraulically actuated disc brakes are the most commonly used form of brake for motor vehicles, but the principles of a disc brake are applicable to almost any rotating shaft. The components include the disc, master cylinder, and caliper (which contains a cylinder and two brake pads) on both sides of the disc. Design The development of disc-type brakes began in England in the 1890s. In 1902, the Lanchester Motor Company designed brakes that looked and operated in a similar way to a modern disc-brake system even though the disc was thin and a cable activated the brake pad. Other designs were not practical or widely available in cars for another 6 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electro-pneumatic Brake System On British Railway Trains
The electro-pneumatic brake system on British mainline railway trains was introduced in 1950 and remains the primary braking system for multiple units in service today, although London Transport underground trains had been fitted with EP brakes since the 1920s. The Southern Region of British Railways operated a self-contained fleet of electric multiple units for suburban and middle-distance passenger trains. From 1950, an expansion of the fleet was undertaken and the new build adopted a braking system that was novel in the UK, the electro-pneumatic brake in which compressed air brake operation was controlled electrically by the driver. This was a considerable and successful technical advance, enabling a quicker and more sensitive response to the driver's operation of brake controls. Origins From the 1920s, the Southern Railway of the UK and its predecessor companies had adopted electrification and multiple-unit train operation as a solution for dense and intensive passenger ser ... [...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] |
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] |
Steel
Steel is an alloy made up of iron with added carbon to improve its strength and fracture resistance compared to other forms of iron. Many other elements may be present or added. Stainless steels that are corrosion- and oxidation-resistant typically need an additional 11% chromium. Because of its high tensile strength and low cost, steel is used in buildings, infrastructure, tools, ships, trains, cars, machines, electrical appliances, weapons, and rockets. Iron is the base metal of steel. Depending on the temperature, it can take two crystalline forms (allotropic forms): body-centred cubic and face-centred cubic. The interaction of the allotropes of iron with the alloying elements, primarily carbon, gives steel and cast iron their range of unique properties. In pure iron, the crystal structure has relatively little resistance to the iron atoms slipping past one another, and so pure iron is quite ductile, or soft and easily formed. In steel, small amounts of carbon, other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silverlink
Silverlink was a train operating company in the United Kingdom owned by National Express that operated the North London Railways franchise from March 1997 until November 2007. At the end of 2007 Silverlink Metro services were taken over by London Overground and Silverlink County services were taken over by London Midland. History The North London Railways franchise was awarded to National Express on 7 February 1997. National Express commenced operating the franchise on 3 March 1997. After initially trading as North London Railways, in September 1997 the franchise was rebranded as Silverlink. The franchise was due to finish on 15 October 2006, but on 11 August 2006 the Department for Transport granted an extension until 10 November 2007. Upon its closure, its London metro services were taken over by London Overground and the remainder were merged with Central Trains' western services to form London Midland. Branding Silverlink had two sub-brands: Silverlink Metro was used for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regional Railways
Regional Railways was one of the three passenger sectors of British Rail created in 1982 that existed until 1997, two years after privatisation. The sector was originally called ''Provincial''. Regional Railways was the most subsidised (per passenger km) of the three sectors. Upon formation, its costs were four times its revenue. The sector was broken up into eight franchises during the privatisation of British Rail and ceased to exist on 31 March 1997. Formation Upon sectorisation in 1982, three passenger sectors were created: InterCity, operating principal express services; London & South East (renamed Network SouthEast in 1986) operating commuter services in the London area, and Provincial (renamed Regional Railways in 1989) responsible for all other passenger services. In the metropolitan counties, local services were managed by the Passenger Transport Executives. Services Regional Railways inherited a diverse range of routes, comprising both express and local services. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Rail
Northern Rail, branded as Northern, was an English train operating company owned by Serco-Abellio that operated the Northern Rail franchise from 2004 until 2016. It was the primary passenger train operator in Northern England, and operated the most stations of any train operating company in the United Kingdom. Northern Rail was replaced on 1 April 2016 by Arriva Rail North. History In 2000 the Strategic Rail Authority announced that it planned to reorganise the North West Regional Railways and Regional Railways North East franchises operated by First North Western and Arriva Trains Northern. A TransPennine Express franchise would be created for the long-distance regional services, with the remaining services to be operated by a new Northern Rail franchise. On 1 July 2004 the Strategic Rail Authority awarded the franchise to Serco-NedRailways, beating FirstGroup. The franchise was awarded for six years and nine months, with a two-year extension subject to performance target ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Network SouthEast
Network SouthEast (NSE) was one of the three passenger sectors of British Rail created in 1982. NSE mainly operated commuter rail trains within Greater London and inter-urban services in densely populated South East England, although the network went as far west as Exeter. Before 1986, the sector was originally known as ''London & South Eastern''. During the privatisation of British Rail, it was gradually divided into a number of franchises. History Before the sectorisation of British Rail (BR) in 1982 the system was split into largely autonomous regional operations: those operating around London were the London Midland Region, Southern Region, Western Region and Eastern Region. Sectorisation of BR changed this setup by instead organising by the traffic type: commuter services in the south-east of England, long-distance intercity services, local services in the UK regions, parcels and freight. The aim was to introduce greater budgetary efficiency and managerial accounta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Express East Anglia
National Express East Anglia (NXEA) was a train operating company in England owned by National Express that operated the Greater Anglia franchise from April 2004 until February 2012. Originally trading as ''One'', it was rebranded National Express East Anglia in February 2008. It provided local, suburban and express services from London Liverpool Street to destinations in Essex, Hertfordshire, Cambridgeshire, Suffolk and Norfolk in the East of England. History When the British Rail services operating out of London Liverpool Street were privatised in January 1997, they were divided up between three train operating companies, Anglia Railways, First Great Eastern and West Anglia Great Northern. In December 2001, the Strategic Rail Authority announced it planned to combine all of the services operating out of London Liverpool Street into one Greater Anglia franchise. In April 2003, the Strategic Rail Authority announced Arriva, GB Railways and National Express had been shor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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