|
NSB El 17
The NSB El 17 is a class of twelve electric locomotives built by Thyssen-Henschel and Norsk Elektrisk & Brown Boveri (NEBB) for the Norwegian State Railways (NSB). The class was built in two batches, the first delivered in 1982 and numbered 2221–2226, and the second delivered in 1987 and numbered 2227–2232. The traction system of the El 17 was based on the DB Class 120 of Germany (BBC, AEG and Siemens) and were among the first in the world to feature three-phase asynchronous motors. The units were ordered to be used on the intercity Bergen, Dovre and Sørland Lines, but were plagued with technical faults (overheating traction equipment, transient voltages, etc.). The unreliability and lack of sufficient power forced NSB to instead use them in the regional Vestfold and Gjøvik Lines. With the delivery of the El 18, the first series was retired or used as shunters. The second series has been used on the Flåm Line since 1998. The locomotives have a maximum power output and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flåm Line
The Flåm Line ( no, Flåmsbana) is a long railway line between Myrdal and Flåm in Aurland Municipality, in Vestland county, Norway. A branch line of the Bergen Line, it runs through the valley of Flåmsdalen and connects the mainline with Sognefjord. The line's elevation difference is ; it has ten stations, twenty tunnels and one bridge. The maximum gradient is 5.5 percent (1:18). Because of its steep gradient and picturesque nature, the Flåm Line is now almost exclusively a tourist service and has become the third-most visited tourist attraction in Norway. Construction of the line started in 1924, with the line opening in 1940. It allowed the district of Sogn access to Bergen and Oslo via the Bergen Line. Electric traction was taken into use in 1944; at first El 9 locomotives were used, and from 1982 El 11. Until 1991, the train connected with a ferry service from Flåm to Gudvangen. In 1992, freight services were terminated, and due to low ticket prices and high operatin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vestfold Line
The Vestfold Line ( no, Vestfoldbanen) is a railway line which runs between Drammen and Eidanger in Norway. The line connects to the Drammen Line at the northern terminus at Drammen Station and continues as the Bratsberg Line past Skien Station. The line is exclusively used for passenger trains, which are provided by the Norwegian State Railways, which connect northwards to Oslo and south-westwards to Grenland. The section from Eidanger to Skien is often colloquially included in the Vestfold Line.The standard gauge line is electrified at and has twelve remaining stations. The Vestfold Line runs through the coastal region of Vestfold and serves major towns including Holmestrand, Tønsberg, Sandefjord and Larvik, as well as Sandefjord Airport, Torp. The section to Larvik Station was opened on 13 October 1881 and the remainder, including an extension to Skien Station, opened on 23 November 1882. The line was originally variously known as the Drammen–Skien Line (), the County Li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NSB B7
NSB may refer to: Art, entertainment, and media * Natural Snow Buildings, a French experimental music duo * Nihilist Spasm Band, Canadian free improvisation musical collective *Nu skool breaks, a subgenre of breakbeat music originating during the period between 1998 and 2002 *'' Nature Structural & Molecular Biology'', an academic journal *Nippon Shortwave Broadcasting (now Radio Nikkei), a domestic commercial shortwave radio station in Japan Politics and government *FBI National Security Branch, the United States Federal Bureau of Investigation's branch responsible for investigating threats to national security *National Seamen Board of the Philippines *National Science Board, the governing body of the National Science Foundation *National Security Bureau (Republic of China), the intelligence agency of the Republic of China (Taiwan) * National Socialist Bloc, an historical political movement in Sweden *National Socialist Movement in the Netherlands (''Nationaal-Socialistische Bew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rectifier
A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The reverse operation (converting DC to AC) is performed by an Power inverter, inverter. The process is known as ''rectification'', since it "straightens" the direction of current. Physically, rectifiers take a number of forms, including Vacuum tube#Diodes, vacuum tube diodes, wet chemical cells, mercury-arc valves, stacks of copper and selenium rectifier, selenium oxide plates, Diode#Semiconductor diodes, semiconductor diodes, silicon-controlled rectifiers and other silicon-based semiconductor switches. Historically, even synchronous electromechanical switches and motor-generator sets have been used. Early radio receivers, called crystal radios, used a "Cat's-whisker detector, cat's whisker" of fine wire pressing on a crystal of galena (lead sulfide) to serve as a point-contact rectifier or "crystal detec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NSB El 16
NSB El 16 is an electric locomotive which is used on the Norwegian railway system by CargoNet to haul freight trains. Until it was replaced by the El 18, the El 16 engines also pulled passenger trains on the Norwegian State Railways. History In the 1970s NSB was faced with a challenge on the steep and wintry Bergen Line and the El 14 was not adequate for the task. The solution seemed to be thyristor locomotive that had successfully been tested by ASEA and Canadian Pacific Railway with possibilities to pull 50% heavier trains than equivalent diesel electric locomotives were capable of. This was partly due to a system of dynamic slip control, where speed of traction motors was controlled and adjusted to avoid slippage and loss of adhesion. The Swedish Rc4 locomotives were tested on the Northeast Corridor with success and NSB also chose to try the units on the Bergen Line. In 1976 NSB ordered six units of a modified Rc4 design, with dynamic brakes, increased traction power (from 4 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NSB El 15
NSB El 15 is a class of electric locomotives which are now operated by the Norwegian company Grenland Rail. The locomotives were originally built for the Norwegian State Railways (NSB) in 1967 to replace the NSB El 3 and NSB El 4 engines on Ofoten Line. The main task there is to pull heavy iron ore freight trains, and the El 15 is the most powerful engine which NSB has ever used. History After the electrification of Ofotbanen in 1923 NSB had been using El 3 and El 4 stock on the line. But in the 1960s these were getting worn out, and NSB decided that it needed to get new stock. NSB first acquired the El 12 stock parallel to the Swedish acquisition of the Dm3 locomotive. But unlike Statens Järnvägar, NSB chose to instead buy a newer technology locomotive from ASEA, based on the Romanian CFR 060 EA. Thus NSB managed to get the same power out of their two-engined El 15s as the Swedish got out of their three-engined Dm3s. Since the locomotives were to be operated in pairs, NSB c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NSB El 14
NSB El 14 is a Norwegian electric locomotive operated by CargoNet for freight trains hauling. Built between 1968 and 1973 by Thune as a general purpose engine for the Norwegian State Railways (NSB), they were seen hauling passenger trains until the 1980s. Of the 31 units numbered 14 2164 to 14 2190 and 14 2197 to 14 2200, 11 remain in service. History The electrification of the Dovre Line in the late 1960s forced NSB to buy a more powerful universal locomotive than the El 13. Based on the Swiss Ae 6/6 and NSB El 13, both developed in the 1950s, the El 14 introduced three-axle bogies in Norway while the power was increased to and the weight reduced to ; remaining more powerful than its successors El 16 and El 17. With the delivery of more powerful El 18 in 1996-97, the El 14s were transferred to freight service alone, with the maximum speed reduced from . The only scrapping occurred in December 2005 when one hit a large pile of rocks from a landslide n ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NSB Di 4
NSB Di 4 is a class of five diesel-electric locomotives built by Henschel for the Norwegian State Railways (NSB). Delivered in 1981, the class is used to haul passenger trains on the Nordland Line and are since 2001 the only revenue diesel locomotives used by NSB. The locomotives had electric components from Brown, Boveri & Cie and a General Motors Electro-Motive Division 16-645E prime mover. This gives a power output of and a starting tractive effort of . The locomotives were ordered in the late 1970s as a supplement and later replacement of the Di 3. The class is technically similar to Denmark's DSB Class ME; it was planned to have commonalities with NSB's electric El 17 locomotives, but this was scrapped. The Di 4 was world's first asynchronous locomotive in revenue service. A second batch was planned delivered later in the 1980s, but the order was never placed. __TOC__ History During the 1950s and 1960s, NSB took delivery of thirty-five Di 3 locomotives. The long-term p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regenerative Brake
Regenerative braking is an energy recovery mechanism that slows down a moving vehicle or object by converting its kinetic energy into a form that can be either used immediately or stored until needed. In this mechanism, the electric traction motor uses the vehicle's momentum to recover energy that would otherwise be lost to the brake discs as heat. This method contrasts with conventional braking systems. In those systems, the excess kinetic energy is converted to unwanted and wasted heat due to friction in the brakes, or with rheostatic brakes, where the energy is recovered by using electric motors as generators but is immediately dissipated as heat in resistors. In addition to improving the overall efficiency of the vehicle, regeneration can significantly extend the life of the braking system as the mechanical parts will not wear out quickly. General principle The most common form of regenerative brake involves an electric motor functioning as an electric generator. In elect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bo-Bo
B-B and Bo-Bo are the Association of American Railroads (AAR) and British classifications of wheel arrangement for railway locomotives with four axles in two individual bogies. They are equivalent to the B′B′ and Bo′Bo′ classifications in the UIC system. The arrangement of two, two-axled, bogies is a common wheel arrangement for modern electric and diesel locomotives. Bo-Bo Bo-Bo is the UIC indication of a wheel arrangement for railway vehicles with four axles in two individual bogies, all driven by their own traction motors. It is a common wheel arrangement for modern electric and diesel-electric locomotives, as well as power cars in electric multiple units. Most early electric locomotives shared commonalities with the steam engines of their time. These features included side rods and frame mounted driving axles with leading and trailing axles. The long rigid wheelbase and the leading and trailing axles reduced cornering stability and increased weight. The Bo-Bo con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> NSB El 17")
.jpg "Click for more on -> Vestfold Line")
