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Three-phase AC Railway Electrification
Three-phase AC railway electrification was used in Italy, Switzerland and the United States in the early twentieth century. Italy was the major user, from 1901 until 1976, although lines through two tunnels also used the system; the Simplon Tunnel between Switzerland and Italy from 1906 to 1930 (but not connected to the Italian system), and the Cascade Tunnel of the Great Northern Railway in the United States from 1909 to 1939. The first standard gauge line was in Switzerland, from Burgdorf to Thun (), from 1899 to 1933. Advantages The system provides regenerative braking with the power fed back to the system, so is particularly suitable for mountain railways (provided the grid or another locomotive on the line can accept the power). The locomotives use three-phase induction motors. Lacking brushes and commutators, they require less maintenance. The early Italian and Swiss systems used a low frequency (16⅔ Hz), and a relatively low voltage (3,000 or 3,600 volts) compared wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petit Train La Rhune
Petite or petite may refer to: * Petit (crater), a small, bowl-shaped lunar crater on Mare Spumans * ''Petit'' (EP), a 1995 EP by Japanese singer-songwriter Ua *Petit (typography), another name for brevier-size type * Petit four *Petit Gâteau * Petit Jean State Park, Arkansas, United States * Petit juror * Petite bourgeoisie in sociology * petite mutation, a mutation in yeast oxidative phosphorylation * Petite sizes in women's clothing *Petit's triangle (inferior lumbar triangle), see Petit's hernia People *A French or Catalan surname: **Adriana Petit (born 1984), Spanish multidisciplinary artist ** Alexis Thérèse Petit (1791–1820), French physicist **Amandine Petit (born 1997), French model, beauty pageant titleholder, and Miss France 2021 ** Antoine Petit (1722–1794), French physician ** Antoni Martí Petit, prime minister of Andorra ** François Pourfour du Petit (1664–1741), French anatomist ** Henriette Petit (1894-1983), Chilean painter **Jean-Martin Petit (1772 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panama Canal
The Panama Canal ( es, Canal de Panamá, link=no) is an artificial waterway in Panama that connects the Atlantic Ocean with the Pacific Ocean and divides North and South America. The canal cuts across the Isthmus of Panama and is a conduit for maritime trade. One of the largest and most difficult engineering projects ever undertaken, the Panama Canal shortcut greatly reduces the time for ships to travel between the Atlantic and Pacific oceans, enabling them to avoid the lengthy, hazardous Cape Horn route around the southernmost tip of South America via the Drake Passage or Strait of Magellan and the even less popular route through the Arctic Archipelago and the Bering Strait. Colombia, France, and later the United States controlled the territory surrounding the canal during construction. France began work on the canal in 1881, but stopped because of lack of investors' confidence due to engineering problems and a high worker mortality rate. The United States took over the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norfolk And Western Railroad
The Norfolk and Western Railway , commonly called the N&W, was a US class I railroad, formed by more than 200 railroad mergers between 1838 and 1982. It was headquartered in Roanoke, Virginia, for most of its existence. Its motto was "Precision Transportation"; it had a variety of nicknames, including "King Coal" and "British Railway of America". In 1986, N&W merged with Southern Railway to form today’s Norfolk Southern Railway. The N&W was famous for manufacturing its own steam locomotives, which were built at the Roanoke Shops, as well as its own hopper cars. After 1960, N&W was the last major Class I railroad using steam locomotives; the last remaining Y class 2-8-8-2s would eventually be retired between 1964 and 1965. In December 1959, the N&W merged with the Virginian Railway (reporting mark VGN), a longtime rival in the Pocahontas coal region. By 1970, other mergers with the Nickel Plate Road and Wabash formed a system that operated of road on of track from Nor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rotary Phase Converter
A rotary phase converter, abbreviated RPC, is an electrical machine that converts power from one polyphase system to another, converting through rotary motion. Typically, single-phase electric power is used to produce three-phase electric power locally to run three-phase loads in premises where only single-phase is available. Operation A basic three-phase induction motor will have three windings, each end connected to terminals typically numbered (arbitrarily) as L1, L2, and L3 and sometimes T1, T2, T3. A three-phase induction motor can be run at two-thirds of its rated horsepower on single-phase power applied to a single winding, once spun up by some means. A three-phase motor running on a single phase cannot start itself because it lacks the other phases to create a rotation on its own, much like a crank that is at dead center. A three-phase induction motor that is spinning under single-phase power applied to terminals L1 and L2 will generate an electric potential (voltage) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ganz Works
The Ganz Works or Ganz ( or , ''Ganz companies'', formerly ''Ganz and Partner Iron Mill and Machine Factory'') was a group of companies operating between 1845 and 1949 in Budapest, Hungary. It was named after Ábrahám Ganz, the founder and the manager of the company. It is probably best known for the manufacture of tramcars, but was also a pioneer in the application of Three-phase AC railway electrification, three-phase alternating current to electric railways. Ganz also made ships (''Ganz Danubius''), bridge steel structures (''Ganz Acélszerkezet'') and high-voltage equipment (''Ganz Transelektro''). In the early 20th century the company experienced its heyday, it became the third largest industrial enterprise in Kingdom of Hungary after the ''Manfréd Weiss Steel and Metal Works'' and the ''MÁVAG'' company. Since 1989, various parts of ''Ganz'' have been taken over by other companies. History Before 1919, the company built ocean liners, dreadnought type battleships and su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kálmán Kandó
Kálmán Kandó de Egerfarmos et Sztregova (''egerfarmosi és sztregovai Kandó Kálmán''; 10 July 1869 – 13 January 1931) was a Hungarian engineer, the inventor of phase converter and a pioneer in the development of AC electric railway traction. Education and Family Kálmán Kandó was born on July 8, 1869 in Pest into an ancient Hungarian noble family. His father was Géza Kandó (1840-1906) his mother was Irma Gulácsy (1845-1933). He began his grammar school studies at the Budapest Lutheran High School, at the Sütő street. His parents transferred him from a crowded school to a smaller school, a practice grammar school founded by Mór Kármán. He was enrolled in Budapest Technical University. In 1892 he received a degree in mechanical engineering. He completed his studies with excellent qualifications. He successfully used his knowledge of mechanics and electricity later in his career. Kandó served as a volunteer for the Austro-Hungarian Navy until 1893. Kálmán Kand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferrovia Alta Valtellina
The Ferrovia Alta Valtellina (FAV) is a railway line in Italy which connects Sondrio, in Valtellina, to Tirano in Alta Valtellina (Upper Tellina Valley). The railway company was established in 1899 and the line opened in 1902. Many railways in Italy were nationalized in 1905 but the Ferrovia Alta Valtellina escaped and was not nationalized until 1970. History In 1899 a company was established for the Alta Valtellina Railway (FAV) with the aim of connecting Sondrio with Tirano. It obtained the concession in August of the same year and started construction work. The line, called the Alta Valtellina, was a natural continuation of the Valtellina Line (Sondrio- Lecco) and the service was inaugurated on 29 June 1902. Initially it was operated by steam traction using four Henschel steam locomotives. Numbers 1-3 were 0-4-0T and number 4 was a 0-6-0T of the Prussian T 3 type. Three more Prussian T 3s, numbers 5-7, arrived later. FAV No.6 is preserved. On 1 July 1908, the Tirano-St.Mor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swiss Federal Railways
Swiss Federal Railways (german: link=no, Schweizerische Bundesbahnen, ''SBB''; french: link=no, Chemins de fer fédéraux suisses, ''CFF''; it, Ferrovie federali svizzere, ''FFS'') is the national railway company of Switzerland. It is usually referred to by the initials of its German, French, and Italian names, either as SBB CFF FFS, or used separately. The Romansh version of its name, ''Viafiers federalas svizras'', is not officially used. The official English abbreviation is "SBB", instead of the English acronym such as "SFR", which stands for ''Swiss Federal Railways'' itself. The company, founded in 1902, is headquartered in Bern. It used to be a government institution, but since 1999 it has been a special stock corporation whose shares are held by the Swiss Confederation and the Swiss cantons. It is currently the largest rail and transport company of Switzerland, and operates on most standard gauge lines of the Swiss network. It also heavily collaborates with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jungfrau Railway
The Jungfrau Railway (german: Jungfraubahn, JB) is a mountain railway in the Bernese Alps, connecting Kleine Scheidegg in the Bernese Oberland to the Jungfraujoch, across the Valais border. The railway, which uses a and racks, runs from the station of Kleine Scheidegg () to the Jungfraujoch (). It is the highest railway in Switzerland and Europe, the Jungfraujoch being the highest railway station on the continent and well above the perennial snow line. As a consequence, the railway runs essentially within the Jungfrau Tunnel, built into the neighbouring Eiger and Mönch, to protect the line from snow and extreme weather. Another particularity of the Jungfrau Railway is the high elevation of its starting point, at the hub of Kleine Scheidegg, also the highest in Europe. The Jungfrau Railway got its name from the highest of the three high peaks above it: the Jungfrau ( en, maiden, virgin; ), the latter mountain being the initial goal of the project. A lift connecting the summit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solothurn–Langnau Railway
The Solothurn–Langnau railway is a railway line in the Emmental in Switzerland. It was built by the Emmentalbahn (Emmental Railway, EB), which was based in Burgdorf. The line runs from Solothurn via Burgdorf to Langnau im Emmental. It is now part of BLS AG. History The company (''Emmenthalbahn-Gesellschaft'', spelt according to then current orthography) was established on 4 August 1872 and is based in Burgdorf. The license was granted on 1 May 1872 for 99 years. The company's general meeting approved an agreement to merge with the Burgdorf-Thun-Bahn (Burgdorf-Thun Railway) in Langnau on 20 June 1942. This merger led to the founding of the Emmental-Burgdorf-Thun-Bahn (Emmental-Burgdorf-Thun Railway). Plant opening with steam traction The Emmental Railway developed out of the Derendingen–Biberist–Gerlafingen Industrial Horse Railway (''Industriepferdebahn''), which was opened on 1 April 1864. This connected with the Solothurn–Herzogenbuchsee railway (most of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zhujiang New Town Automated People Mover System
Zhujiang New Town Automated People Mover System (), or APM line, is an automated people mover (APM) system mainly serving the Zhujiang New Town area in Guangzhou, the new CBD of the city. All of its stations are underground. In terms of construction cost per kilometre, it is the most expensive people mover system in the world, yet it is the shortest and least used line in the Guangzhou Metro network. The whole line began service before the Asian Games on 8 November 2010 with the exception of and . This was due to the two stations being located close to the opening ceremony venue. Opening timeline Lengths and stations The entire track of the Zhujiang New Town APM, with a length of and all nine stations are laid underground, making it the first all underground urban people mover in the world. The shortest distance between two stations is with an average of the entire line approximating . Stations Operating hours The system was designed to provide service from 6:00 to 24:0 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bukit Panjang LRT Line
The Bukit Panjang LRT line (BPLRT) is a automated guideway transit line in Bukit Panjang, Singapore. The BPLRT is the only LRT line operated by SMRT Trains. As the name suggests, it serves 13 stations in the neighbourhood of Bukit Panjang and Choa Chu Kang. The line is the first LRT line in Singapore and was opened on 6 November 1999 by Deputy Prime Minister Tony Tan. It is a fully elevated and automated people mover system. The line uses Innovia APM 100 C801 and C801A rolling stock supplied by Bombardier, running in a two-car formation. The line is infamous for its frequent breakdowns and plans have been made to overhaul the system. History The idea of Bukit Panjang LRT was first pitched in 1991 before the government announced in 1994 that it would pilot the system there. Two years later, construction began for the Bukit Panjang LRT, along which a few changes were distinguished from the MRT lines: *It became the first line in Singapore with a fully automated train with no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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