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Bo-Bo-Bo
A Bo-Bo-Bo or Bo′Bo′Bo′ (UIC classification) is a locomotive with three independent two-axle bogies with all axles powered by separate traction motors. In the AAR system, this is simplified to B-B-B. The Bo-Bo-Bo configuration is often used to lower axle weight while keeping lateral forces low compared to a locomotive with two three-axle bogies, thus allowing the locomotive to use lightly laid track, in particular narrow-gauge railways. Bo-Bo-Bo locomotives The arrangement is extensively used on Italian and Japanese railways. Other examples include New Zealand's DJ, EW and EF classes; the Eurotunnel Class 9 locomotives, which were themselves derived from the New Zealand EF class; the Swiss SBB Re 6/6 (Re 620); the Russia Railways VL65, EP1 (EP1M), EP10 and EP20; and the South Korean Korail Class 8000. China imported 6K electric locomotive from Japan between 1986 and 1987. The Bo-Bo-Bo design was applied to SS7 series except SS7E. The State Rail Autho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand DJ Class Locomotive
The New Zealand DJ class locomotive is a type of diesel-electric locomotive A diesel locomotive is a type of railway locomotive in which the prime mover is a diesel engine. Several types of diesel locomotives have been developed, differing mainly in the means by which mechanical power is conveyed to the driving wheels ... in service on the New Zealand rail network. The class were built by Mitsubishi Heavy Industries and introduced from 1968 to 1969 for the New Zealand Railways Department (NZR) with a modernisation loan from the World Bank to replace steam locomotives in the South Island, where all of the class members worked most of their lives. Nine of the locomotives remain in use, mainly with Dunedin Railways. They are the second class of locomotive in New Zealand to utilise the Bo-Bo-Bo wheel arrangement, the other classes being the New Zealand EW class locomotive, EW class and the New Zealand EF class locomotive, EF class. In both cases, this wheel arrangement was used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Korail Class 8000
The Korail Class 8000 locomotive is a series of South Korean electric locomotives operated by Korail. This locomotive was introduced from 1972 to 1990, after electrification of several industrial lines. It was assigned both passenger and freight duty until the introduction of the 8200 series, which restricted the older locomotives to solely freight service. 94 were built (numbered 8001-8094), but many have been retired as new replacements enter service. Technical details The locomotive was designed by the 50 C/s Group, which consisted of European manufacturers Alsthom (now Alstom), Siemens, MTE, Brown-Boveri, ACEC, and AEG, and was led by Alsthom. The locomotive has three bogies in Bo-Bo-Bo arrangement. With six DC motors, the total power is . The gear ratio is 15:96, and top speed , optimized for mountain lines with steep grades and short radius curves. The design was inspired by contemporary French locomotives, such as SNCF Class BB 15000 and SNCF Class CC 6500. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand EF Class Locomotive
The New Zealand EF class locomotive (originally Class 30) is a class of electric locomotives that operate on the North Island Main Trunk (NIMT) between Palmerston North and Te Rapa in New Zealand. Built by Brush Traction in Loughborough, England between 1986 and 1988 to run on the new electrified central section of the NIMT, at , they are the most powerful locomotives to operate in New Zealand. They are the only class of electric locomotives currently in service in New Zealand. Background The NIMT is a long rail line that links New Zealand's capital Wellington and largest city Auckland, and is one of the major backbones of the country's rail network. The line was completed in 1908 and opened the following year, and included various engineering feats on the central section between Hamilton and Palmerston North, including the Raurimu Spiral and numerous viaducts – five of which are over high. Electrification of the NIMT was first proposed as early as 1918 due to coal sho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NZR EW Class
The New Zealand EW class locomotive was a type of electric locomotive used in Wellington, New Zealand. The classification "EW" was due to their being electric locomotives allocated to Wellington. For two decades until the advent of the DX class they were the most powerful locomotives in New Zealand. Introduction The EW class were ordered by New Zealand Railways from English Electric through their New Zealand agents Cory-Wright & Salmon in 1951 as a replacement for the earlier ED class electric locomotives on passenger duties. It was felt that the ED class was not suitable for this, and so English Electric was commissioned to build a twin-section articulated electric locomotive for use on the Wellington 1.5 kV DC electrified system. The new EW class was the first locomotive class in New Zealand to utilise the Bo-Bo-Bo wheel arrangement, which would subsequently be used on the Mitsubishi DJ class and Brush EF class locomotives. However, the EW class was different in that t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Railways Class 6K
The 6K is a Japanese-built electric locomotive used in China. It is developed and built by Kawasaki Heavy Industries and Mitsubishi Electric. The design of 6K is based on JNR Class ED75 and EF66 electric locomotives. It is the first locomotive with Bo-Bo-Bo wheel arrangement used in China. Production In total 85 6Ks were built between 1986 and 1987. Equipment Each 6K locomotive uses CLG-616 phase splitter A phase splitter is a device that separates a signal into multiple phases (or polarities). The term is most often applied to amplifiers that produce two "balanced" voltage outputs: of equal amplitude but opposite polarity (i.e. 180 degrees phase ... and 6 Mitsubishi Electric MB-530-AVR DC traction motors. Performance 6K was one of the most reliable electric locomotives in China compared with SS1, SS2 and SS3 at the time of entering service. China later made SS7 locomotive with reference to the Tri-Bo wheel arrangement of 6K, the breakdown rate, however, was still high, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New South Wales 86 Class Locomotive
The 86 class is a class of electric locomotives built by Comeng, Granville for the State Rail Authority of New South Wales. History The 86 class initially hauled passenger and freight services to Lithgow on the Main Western line and Wyong on the Main Northern line. Their sphere of operation extended to Newcastle on the latter line in June 1984 and to Port Kembla in January 1986 when the Illawarra line was electrified. With a one-hour rating of 4,400 horsepower (hp), the 86 class was the most powerful locomotive in Australia at the time. Although no longer in regular use, the class remains among the most powerful in the country. Despite their higher power rating, they were generally regarded as inferior to the Metropolitan-Vickers built 46 class, which dated from the late 1950s. The last, 8650 was delivered as a Bo-Bo-Bo trial unit. It spent long periods out of traffic undergoing repair. In 1994/95 all were repainted by A Goninan & Co, Taree into FreightCorp blue. By O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EP1 (electric Locomotive)
Electric locomotive EP1 is a Russian electric locomotive which has been produced by Novocherkassk Electric Locomotive Plant since 1998. It is the first Russian passenger electric locomotive with the 2o-2o-2o or Bo-Bo-Bo axle arrangement. There are, as December 2016, 866 of these locomotives. History In the 1990s there were few passenger electric locomotives in Russia. The existing ''Chesh'' electric locomotives CHS4 and CHS4t were rather old to head passenger trains. A decision was therefore taken to commission a new electric passenger locomotive. The first example of this locomotive was made in 1998, based on the existing VL65 design and modified for passenger traffic. The locomotive proved successful and was ordered in large numbers. Modifications Electric locomotive EP1M This locomotive is an EP1 with a new driver's cab, as featured in the 2ES4K locomotive. This cab features a new modern control console, and climate control. This variant first appeared in 2007. Elec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurotunnel Class 9
The Eurotunnel Class 9 or Class 9000 are six-axle high-power Bo′Bo′Bo′ single-ended electric locomotives built by the ''Euroshuttle Locomotive Consortium'' (ESCL) of Brush Traction and ABB. The class was designed for and is used exclusively to haul the '' Le Shuttle'' road vehicle services through the Channel Tunnel. Background and design Tendering for the locomotive procurement began in 1989. The specification included; a top speed of ; a terminal-to-terminal travel time of 33 minutes pulling a train; an axle load limit of ; an operating temperature range between and ;B. Driver (1995), p.9-12 a loading gauge within the UIC 505-1 standard; a minimum curve radius of ;B. Driver (1996), p.72 be able to start a shuttle train on a 1 in 160 (0.625 %) gradient with one locomotive bogie inoperative (at ), and a single locomotive should be able to start the train on the same gradient if the other locomotive failed. The operating concession agreement between Transmanche Link/Euro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Re 6/6
The Re 620, Re 6/6 in the old numbering scheme, are six-axle, electric locomotives of the SBB-CFF-FFS, which were acquired as a replacement for the Ae 6/6 for heavy services on the Gotthardbahn. They are the most modern of the so-called "Gotthard locomotives". Construction and Technology To reach the necessary tractive effort, a construction comprising six driven axles was necessary. In order to still get good running characteristics in curves, they were built into three two-axle bogies instead of two three-axle bogies as on the Ae 6/6. The middle bogie can move sideways, and the three bogies are connected by elastic cross couplings. Two of the four prototypes were built with a split locomotive body, whereby the joint may only move on an horizontal transverse axis to allow for changes in gradient, similarly to the Rhaetian Railway Ge 6/6 II. The other two prototypes got a softer secondary suspension instead of the joint, which proved to be so reliable in everyday use that all ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AAR Wheel Arrangement
The AAR wheel arrangement system is a method of classifying locomotive (or unit) wheel arrangements that was developed by the Association of American Railroads. Essentially a simplification of the European UIC classification, it is widely used in North America to describe diesel and electric locomotives (including third-rail electric locomotives). It is not used for steam locomotives, which use the Whyte notation instead. The AAR system counts axles instead of wheels. Letters refer to powered axles, and numbers to unpowered (or idler) axles. "A" refers to one powered axle, "B" to two powered axles in a row, "C" to three powered axles in a row, and "D" to four powered axles in a row. "1" refers to one idler axle, and "2" to two idler axles in a row. A dash ("–") separates trucks or wheel assemblies. A plus sign ("+") refers to articulation, either by connecting bogies with span bolsters or by connecting individual locomotives via solid drawbars instead of couplers. 1A-A1 "1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Railways Class SS7
The Shaoshan 7 (Chinese: 韶山7) is a type of electric locomotive used on the People's Republic of China's national railway system. They are widely used on electrified lines in the southwest part of China. Design The design of SS7 was influenced by the 6K, an electric locomotive model imported from Japan.SS7型电力机车 _trainnets.com The first SS7 was built in 1992 in Datong. In 1997, SS7s were used in Nanning-Kunming Railway. However, SS7's frequent failure lead to Datong Electric Locomotive Works making improvements to SS7s. Failure was reduced to just four cases in one year in 2004. SS7 Electric Locomotive was still produced as of 2007. Most of SS ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Korea
South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korean Peninsula and sharing a land border with North Korea. Its western border is formed by the Yellow Sea, while its eastern border is defined by the Sea of Japan. South Korea claims to be the sole legitimate government of the entire peninsula and adjacent islands. It has a population of 51.75 million, of which roughly half live in the Seoul Capital Area, the fourth most populous metropolitan area in the world. Other major cities include Incheon, Busan, and Daegu. The Korean Peninsula was inhabited as early as the Lower Paleolithic period. Its first kingdom was noted in Chinese records in the early 7th century BCE. Following the unification of the Three Kingdoms of Korea into Silla and Balhae in the late 7th century, Korea was ruled by the Goryeo dynasty (918–1392) and the Joseon dynasty (1392–1897). The succeeding Korean Empire (1897–1910) was an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
