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British Rail Class 365
The British Rail Class 365 ''Networker Express'' were dual-voltage ( and 750 V DC) electric multiple-unit passenger trains built by ABB at Holgate Road Carriage Works in 1994 and 1995 to operate services in South East England and on the Great Northern Route. These were the last trains to be built at the Holgate Road works before its closure. Due to the refurbished front end resembling a smiling face, the trains were nicknamed "Happy Trains" by enthusiasts. Background In the early 1990s, the Networker family was entering large-scale service in the Network SouthEast sector – both third-rail 'Networker' EMUs (/) and 'Network Turbo' DMUs (/) were in service, with proposals for others, including a so-called "Universal Networker", intended as Classes 371 and 381, that would have dual-voltage capability. However, by 1992, no work had been done in the development of these due to a lack of funding, so a replacement plan was required. For this, the Class 465 was modified for longer- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Govia Thameslink Railway
Govia Thameslink Railway (GTR) is a train operating company that operates the Thameslink, Southern and Great Northern (TSGN) rail franchise in England. Within the franchise, GTR runs the Thameslink, Great Northern, Southern (Govia Thameslink Railway), Southern and Gatwick Express services. GTR is a subsidiary of Govia, which is itself a joint venture between the British Go-Ahead Group (65%) and French company Keolis (35%). The franchise was awarded, after repeated delays, to Govia Thameslink Railway on 23 May 2014. On 14 September 2014, GTR took over operations for the prior franchisee First Capital Connect; during July 2015, both Southern and Gatwick Express operations were integrated into GTR. This change made it the largest rail franchise in terms of passengers, staff and fleet in the UK. The franchise has an unusual structure involving a management contract that sees all fare revenues going straight to the Department for Transport (DfT), which in turn pays GTR fixed amou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South East England
South East England is one of the nine official regions of England at the ITL 1 statistical regions of England, first level of International Territorial Level, ITL for Statistics, statistical purposes. It consists of the counties of england, counties of Buckinghamshire, East Sussex, Hampshire, the Isle of Wight, Kent, Oxfordshire, Berkshire, Surrey and West Sussex. Major towns and cities in the region include Brighton and Hove, Milton Keynes, Southampton, Portsmouth, Slough, Reading, Berkshire, Reading and Oxford. South East England is the third largest region of England, with an area of 19,096 km2 (7,373 sq mi), and is also the most populous with a total population of over eight and a half million (2011). The region contains seven legally city status in the United Kingdom, chartered cities: Brighton and Hove, Canterbury, Chichester, Oxford, Portsmouth, Southampton and Winchester. The region's close proximity to London and connections to several national motorways have le ... [...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 ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Railway Electrification Systems
This is a list of the power supply systems that are, or have been, used for tramway and railway electrification systems. Note that the voltages are nominal and vary depending on load and distance from the substation. Many modern trams and trains use on-board solid-state electronics to convert these supplies to run three-phase AC induction motors. Tram electrification systems are listed here. Key to the tables below * Volts: voltage or volt * Current: ** DC = direct current ** # Hz = frequency in hertz (alternating current (AC)) *** AC supplies are usually single-phase (1Ø) except where marked three-phase (3Ø). * Conductors: ** overhead line or ** conductor rail, usually a third rail to one side of the running rails. Conductor rail can be: *** top contact: oldest, least safe, most affected by ice, snow, rain and leaves. Protection boards are being installed on most top contact systems, which increases safety and reduces these affections. *** side contact: newer, safer, less aff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tightlock Coupling
Type H Tightlock couplers are a variety of Janney coupler, typically used on North American mainline passenger rail cars. They are designed with mechanical features which reduce slack in normal operation and prevent telescoping in derailments, yet remain compatible with other Janney types used by North American freight railroads. Like all Janney couplers, the Tightlock is "semi-automatic" with the couplers on cars or locomotives automatically locking when cars are pushed together. However, most tightlock couplers are not fully automatic, as workers still need to go between cars to hook up the air lines for the pneumatic brakes, and connect cables for head-end power and other communications. Also, to separate cars, a worker needs to use a lever to move the locking pin that keeps the coupler closed. In Europe, some operators experimented with making fully automatic tightlock couplers by adding integral pneumatic and electric connectors, but these connections experienced reliabi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Train Control System
The European Train Control System (ETCS) is the signalling and control component of the European Rail Traffic Management System (ERTMS). It is a replacement for legacy train protection systems and designed to replace the many incompatible safety systems currently used by European railways. The standard was also adopted outside Europe and is an option for worldwide application. In technical terms it is a type of positive train control (PTC). ETCS is implemented with standard trackside equipment and unified controlling equipment within the train cab. In its advanced form, all lineside information is passed to the driver wirelessly inside the cab, removing the need for lineside signals watched by the driver. This will give the foundation for a later to be defined automatic train operation. Trackside equipment aims to exchange information with the vehicle for safely supervising train circulation. The information exchanged between track and trains can be either continuous or int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Train Protection & Warning System
The Train Protection & Warning System (TPWS) is a train protection system used throughout the British passenger main-line railway network, and in Victoria, Australia. The British Rail Safety and Standards Board's definition is: The purpose of TPWS is to stop a train by automatically initiating a brake demand, where TPWS track equipment is fitted, if the train has: *passed a signal at danger without authority *approached a signal at danger too fast *approached a reduction in permissible speed too fast *approached buffer stops too fast. TPWS is not designed to prevent SPADs but to mitigate the consequences of a SPAD, by preventing a train that has had a SPAD from reaching a conflict point after the signal. A standard installation consists of an on-track transmitter adjacent to a signal, activated when the signal is at danger. A train that passes the signal will have its emergency brake activated. If the train is travelling at speed, this may be too late to stop it before the point ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automatic Warning System
The Automatic Warning System (AWS) was introduced in the 1950s in the United Kingdom to provide a train driver with an audible warning and visual reminder that they were approaching a distant signal at caution. Its operation was later extended to give warnings for; * A colour light signal displaying a double yellow (steady or flashing), single yellow or red aspect * A reduction in permissible speed * A temporary or emergency speed restriction * An automatic barrier crossing locally monitored (ABCL), an automatic open crossing locally monitored (AOCL), or an open crossing (OC). AWS was based on a 1930 system developed by Alfred Ernest Hudd and marketed as the "Strowger-Hudd" system. An earlier contact system, installed on the Great Western Railway since 1906 and known as automatic train control (ATC), was gradually supplanted by AWS within the Western Region of British Railways. Principles of operation Information is conveyed by magnetic fields to the moving train throu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contact Shoe
Electric current collectors are used by trolleybuses, trams, electric locomotives or EMUs to carry electrical power from overhead lines, electrical third rails, or ground-level power supplies to the electrical equipment of the vehicles. Those for overhead wires are roof-mounted devices, those for rails are mounted on the bogies. Typically, electric current connectors have one or more spring-loaded arms that press a collector or contact shoe against the rail or overhead wire. As the vehicle moves, the contact shoe slides along the wire or rail to draw the electricity needed to run the vehicle's motor. The current collector arms are electrically conductive but mounted insulated on the vehicle's roof, side or base. An insulated cable connects the collector with the switch, transformer or motor. The steel rails of the tracks act as the electrical return. Electric vehicles that collect their current from an overhead line system use different forms of one- or two-arm pantograph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Railway Magazine
''The Railway Magazine'' is a monthly British railway magazine, aimed at the railway enthusiast market, that has been published in London since July 1897. it was, for three years running, the railway magazine with the largest circulation in the United Kingdom, having a monthly average sale during 2009 of 34,715 (the figure for 2007 being 34,661). It was published by IPC Media until October 2010, with , and in 2007 won IPC's 'Magazine of the Year' award. Since November 2010, ''The Railway Magazine'' has been published by Mortons of Horncastle. History ''The Railway Magazine'' was launched by Joseph Lawrence and ex-railwayman Frank E. Cornwall of Railway Publishing Ltd, who thought there would be an amateur enthusiast market for some of the material they were then publishing in a railway staff magazine, the ''Railway Herald''. They appointed as its first editor a former auctioneer, George Augustus Nokes (1867–1948), who wrote under the pseudonym "G. A. Sekon". He quickly bui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brecknell Willis High Speed Pantograph
Brecknell Willis is a British company headquartered in Chard, Somerset, and brand-name of electrification equipment for railways, mostly pantographs and contact shoes. History Henry Brecknell and Sons began operating in 1854. In 1894, it moved into electrification. Since 1938 it has been in Chard, when known as Brecknell, Willis & Co. Ltd. Products For the London Underground, it has supplied shoe gear and conductor rail systems, as well as pantographs to the rail industry. Pantographs Low height pantograph The Brecknell Willis Low Height pantograph is one of the four standard devices in use on British railway locomotives and multiple units and is a development of the standard Brecknell Willis High Speed pantograph. The Low Height pantograph is suitable for speeds up to . It has a small aerofoil mounted on the knuckle joint between the upper and lower arms. High reach pantograph Although it had been used on a few rapid transit systems and on a Blackpool tram, the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
