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SNCF Class CC 70000
SNCF CC 70000 was a class of two prototype high power diesel-electric locomotives numbered CC 70001 and 70002. They were built at the same time as a diesel-hydraulic version, BB 69000. Transmission The locomotives were an attempt to produce a new class of locomotives of extremely high power. Two high-speed diesel engines producing 2,000 hp each could provide this, but existing electric transmissions were unable to handle so much. New techniques were needed, with several innovations. A three-phase AC alternator was used, rather than a DC generator. This avoided the commutator needed, which had become a limitation on power and machine speed for large locomotives. The AC current was then rectified by arrays of silicon diodes and the DC produced was fed to the two traction motors. The motor voltage was 1,800V at a continuous current rating of 980A, 1,030A (one hour) and 1,580A peak for starting. Control of power was by controlling the excitation of the alternator, although th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alsthom
Alstom SA is a French multinational rolling stock manufacturer operating worldwide in rail transport markets, active in the fields of passenger transportation, signalling, and locomotives, with products including the AGV, TGV, Eurostar, Avelia and New Pendolino high-speed trains, in addition to suburban, regional and metro trains, and Citadis trams. Alsthom (originally Als-Thom) was formed by a merger between Compagnie Française Thomson-Houston and the electric engineering division of Société Alsacienne de Constructions Mécaniques in 1928. Significant later acquisitions included the Constructions Electriques de France (1932), shipbuilder Chantiers de l'Atlantique (1976), and parts of ACEC (Belgium, late-1980s). A merger with parts of the General Electric Company (UK) formed GEC Alsthom in 1989. Throughout the 1990s, the company expanded its holdings in the rail sector, via the acquisition of German rolling stock manufacturer Linke-Hofmann-Busch and Italian rail signalli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stator
The stator is the stationary part of a rotary system, found in electric generators, electric motors, sirens, mud motors or biological rotors. Energy flows through a stator to or from the rotating component of the system. In an electric motor, the stator provides a magnetic field that drives the rotating armature; in a generator, the stator converts the rotating magnetic field to electric current. In fluid powered devices, the stator guides the flow of fluid to or from the rotating part of the system. Design Motor stators are made either from iron/steel or from a printed circuit board (PCB). Originally applied to low-power applications, PCB stators can be lighter, smaller, and less noisy. One design embeds thin copper traces in the PCB stator that serve as the windings. The traces are interleaved with epoxy-glass laminates, that insulate each coil from its neighbors. An air core replaces the traditional iron core, saving space and weight, and allowing a smaller air gap. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SNCF Locomotives
The Société nationale des chemins de fer français (; abbreviated as SNCF ; French for "National society of French railroads") is France's national State-owned enterprise, state-owned railway company. Founded in 1938, it operates the Rail transport in France, country's national rail traffic along with Monaco, including the TGV, on France's high-speed rail network. Its functions include operation of railway services for passengers and freight (through its subsidiaries SNCF Voyageurs and Rail Logistics Europe), as well as maintenance and signalling of rail infrastructure (SNCF Réseau). The railway network consists of about of route, of which are high-speed lines and electrified. About 14,000 trains are operated daily. In 2010 the SNCF was ranked 22nd in France and 214th globally on the Fortune Global 500 list. It is the main business of the SNCF Group, which in 2020 had €30 billion of sales in 120 countries. The SNCF Group employs more than 275,000 employees in France and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scrapped Locomotives
Scrap consists of recyclable materials, usually metals, left over from product manufacturing and consumption, such as parts of vehicles, building supplies, and surplus materials. Unlike waste, scrap has monetary value, especially recovered metals, and non-metallic materials are also recovered for recycling. Once collected, the materials are sorted into types — typically metal scrap will be crushed, shredded, and sorted using mechanical processes. Scrap recycling is important for creating a more sustainable economy or creating a circular economy, using significantly less energy and having far less environmental impact than producing metal from ore. Metal recycling, especially of structural steel, ships, used manufactured goods, such as vehicles and white goods, is a major industrial activity with complex networks of wrecking yards, sorting facilities and recycling plants. Processing Scrap metal originates both in business and residential environments. Typically a "scrapper" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C′C′ Locomotives
Co-Co is the wheel arrangement for diesel or electric locomotives with two six-wheeled bogies with all axles powered, with a separate traction motor per axle. The equivalent UIC classification (Europe) for this arrangement is Co′Co′, or C-C for AAR (North America). Use Co-Cos are most suited to freight work as the extra wheels give them good traction. They are also popular because the greater number of axles results in a lower axle load to the track. History The first mainline diesel-electric locomotives were of Bo-Bo arrangement. As they grew in power and weight, from 1937 the EMD E-units used an A1A-A1A layout with six axles to reduce axle load, but only four of them were powered. After WWII, the British LMS ordered two prototype locomotives with some of the first Co-Co arrangements. The first C-C design recorded was a narrow-gauge Hornsby opposed-piston Hornsby-Akroyd-engined locomotive of 1903 for the Chattenden and Upnor Railway. There was a two-speed mecha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway Locomotives Introduced In 1965
Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a prepared flat surface, rail vehicles (rolling stock) are directionally guided by the tracks on which they run. Tracks usually consist of steel rails, installed on sleepers (ties) set in ballast, on which the rolling stock, usually fitted with metal wheels, moves. Other variations are also possible, such as "slab track", in which the rails are fastened to a concrete foundation resting on a prepared subsurface. Rolling stock in a rail transport system generally encounters lower frictional resistance than rubber-tyred road vehicles, so passenger and freight cars (carriages and wagons) can be coupled into longer trains. The operation is carried out by a railway company, providing transport between train stations or freight customer facilit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Modern Railways
''Modern Railways'' is a British monthly magazine covering the rail transport industry which was published by Ian Allan until March 2012, and Key Publishing since then. It has been published since 1962. The magazine was originally based in Shepperton, Middlesex. It has always been targeted at both railway professionals and serious amateurs, an aim which derives from its origins as an amalgamation of the enthusiast magazine ''Trains Illustrated'' and the industry journal ''The Locomotive'' in the hands of its first editor Geoffrey Freeman Allen. It is currently edited by Philip Sherratt after the retirement of James Abbott. Regular contributors include Roger Ford, Ian Walmsley, Alan Williams and Tony Miles. The large section regularly written by Roger Ford is called ‘Informed Sources’. That by Ian Walmsley is called ‘Pan Up’. Trains Illustrated The first edition of ''Trains Illustrated'' was published at the beginning of 1946. Due to post-war paper shortages issues 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail HS4000
HS4000 Kestrel was a prototype high-powered mainline diesel locomotive that was built in 1967 by Brush Traction, Loughborough, as a technology demonstrator for potential future British Rail and export orders. ''therailwaycentre.com'' The locomotive number is a combination of the initials of Hawker Siddeley (the owners of Brush Traction) and the power rating of its Sulzer diesel engine (4,000 hp), making it the most powerful locomotive built by the company. It was of Co-Co wheel arrangement and was fitted with a Sulzer 16LVA24 engine rated at providing a maximum speed of and weighed 133 tonnes. It was painted in a livery of yellow ochre with a broad chocolate-brown band around the lower bodyside separated by a thin white line running around the body. Background and design In the mid 1960s British rail produced specifications for type 5 locomotives weighing less than 126 tonnes with more than of power for both passenger and freight working. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SNCF CC 40100
The SNCF CC 40100 was a French class of quad-voltage electric locomotives. They were intended for high-performance passenger services on the Trans Europ Express (TEE) routes of the 1960s and 1970s. This non-stop international working required them to support the electrical standards of several networks. They are significant for combining three innovations in locomotive design: quad-voltage working, three-axle monomotor bogies and the new 'Nez Cassé' body style of French locomotives. Quad-voltage working With the development of the Trans Europ Express in the early 1960s over the electrified routes of North-West Europe, a powerful express passenger electric locomotive was required that could operate across the multiple voltage standards of France and Belgium. Previous designs, such as the BB 30000 had operated on three voltages, allowing working through the North West across France (25 kV AC and some older 1,500 V DC) into Belgium (3,000 V DC) and the Netherlands (1,500 V DC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monomotor Bogie
A monomotor bogie (french: bogie monomoteur) is a form of traction bogie used for an electric locomotive or diesel-electric locomotive. It is distinguished by having a single traction motor on each bogie. Development The first electric locomotives used large diameter electric motors, mounted rigidly on their frames and using jackshaft drives and coupling rods to carry their torque to the driving wheels. This increased their unsprung weight and limited their maximum speed, despite the greater power of electric locomotives. Leading trucks To achieve a higher speed, locomotives began using wheel arrangements such as 2'Do2' (AAR: 2-Do-2), with the SNCF Class 2D2 5500 This used leading (and trailing) pony trucks or bogies to provide stability at high speed, with individual traction motors for each axle, avoiding the weight of the coupling rods. Suspension travel for each axle was achieved with a Buchli drive on each axle. Unlike the original Swiss practice with a Buchli drive on o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roller Bearing
In mechanical engineering, a rolling-element bearing, also known as a rolling bearing, is a bearing which carries a load by placing rolling elements (such as balls or rollers) between two concentric, grooved rings called races. The relative motion of the races causes the rolling elements to roll with very little rolling resistance and with little sliding. One of the earliest and best-known rolling-element bearings are sets of logs laid on the ground with a large stone block on top. As the stone is pulled, the logs roll along the ground with little sliding friction. As each log comes out the back, it is moved to the front where the block then rolls on to it. It is possible to imitate such a bearing by placing several pens or pencils on a table and placing an item on top of them. See " bearings" for more on the historical development of bearings. A rolling element rotary bearing uses a shaft in a much larger hole, and cylinders called "rollers" tightly fill the space between t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
