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BVG Class IK
The BVG Class IK is a type of electrical multiple unit used on the Berlin U-Bahn. History In August 2011, BVG announced an order of ''IK'' series to replace A3L71 stock which had reached the end of its working life. Two prototypes were bought from Stadler Rail with the remaining 38 units being delivered between 2015 and 2017. These trains are based on the Stadler Tango family of trams and light rail vehicles, but resemble and function like a full-fledged subway train. The number '1xxx' will be jumped into '18Yxxx' (where Y is the train car number). Due to regenerative braking the trains will recuperate up to 20% of the energy they require. In 2012, BVG had awarded the tender for Class IK to Stadler Pankow, which replaced the life-expired A3L71 trains, which consists of 24 trains. It costed 158 million Euros and had the option for 10 more trains. In May 2015, BVG nicknamed the train "Icke". In September 2015, the first two trains were delivered - 1025 and 1026, into U1 and U2 re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stadler Rail
Stadler Rail is a Swiss manufacturer of railway rolling stock, with an emphasis on regional train multiple units and trams. It is also focused on niche products, such as being one of the last European manufacturers of rack railway rolling stock. Stadler Rail is headquartered in Bussnang, Switzerland. The holding company consists of nine subsidiaries with locations in Algeria, Germany, Italy, the Netherlands, Austria, Poland, Switzerland, Spain, Czech Republic, Hungary, Belarus and the United States, and upcoming joint ventures with INKA in Indonesia and with Medha Servo Drives in India. Stadler Rail employed approximately 6,100 employees by 2012, including 2,750 in Switzerland, 1,200 in Germany, 1,000 in Belarus, 400 in Hungary and 400 in Poland. By 2017, this had increased to 7,000 employees. History Stadler Rail traces its origins back to an engineering office established by Ernst Stadler during 1942. Three years later, the company begun to manufacture its first locomotives ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronically Controlled Pneumatic Brakes
Electronically controlled pneumatic brakes are a type of modern railway braking system which offer improved performance compared to traditional railway air brakes. Overview Traditional train braking systems use pneumatic valves to control and generate brake applications on the cars along the length of the train. In general, this conventional system consists of a brake pipe that runs the length of the train which supplies air to reservoirs mounted on each of the cars. When the brake pipe and car components are charged with air, the brakes release. When the engineer needs to make a brake application, control valves in the locomotive reduce the brake pipe pressure. As the brake pipe pressure reduces, the service portion on each car diverts air from their reservoirs to their brake cylinders. To release the brakes, the engineer charges the brake pipe. This method of controlling the brakes on freight and passenger cars has remained virtually unchanged since its invention by George Wes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Multiple Units Of Germany
Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations. Various common phenomena are related to electricity, including lightning, static electricity, electric heating, electric discharges and many others. The presence of an electric charge, which can be either positive or negative, produces an electric field. The movement of electric charges is an electric current and produces a magnetic field. When a charge is placed in a location with a non-zero electric field, a force will act on it. The magnitude of this force is given by Coulomb's law. If the charge moves, the electric field would be doing work on the electric charge. Thus we can speak of electric potential at a certain point in space, which is equal to the work done by an external agent in carrying a unit of posit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berlin Hauptbahnhof
Berlin Hauptbahnhof () (English: Berlin Central Station) is the main railway station in Berlin, Germany. It came into full operation two days after a ceremonial opening on 26 May 2006. It is located on the site of the historic Lehrter Bahnhof, and on the Berlin S-Bahn suburban railway. The station is operated by DB Station&Service, a subsidiary of Deutsche Bahn AG, and is classified as a Category 1 station, one of 21 in Germany and four in Berlin, the others being Berlin Gesundbrunnen, Berlin Südkreuz and Berlin Ostbahnhof. ''Lehrter Bahnhof'' (Lehrte Station) opened in 1871 as the terminus of the railway linking Berlin with Lehrte, near Hanover, which later became Germany's most important east–west main line. In 1882, with the completion of the Stadtbahn (City Railway, Berlin's four-track central elevated railway line, which carries both local and main line services), just north of the station, a smaller interchange station called Lehrter Stadtbahnhof was opened to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COVID-19 Pandemic In Germany
The COVID-19 pandemic in Germany has resulted in confirmed cases of COVID-19 and deaths. On 27 January 2020, the first case in Germany was confirmed near Munich, Bavaria. By mid February, the arising cluster of cases had been fully contained. On 25 and 26 February, multiple cases related to the Italian outbreak were detected in Baden-Württemberg. A carnival event on 15 February in Heinsberg, North Rhine-Westphalia, was attended by a man identified as positive on 25 February; in the outbreak which subsequently developed from infected participants, authorities were mostly no longer able to trace the likely chains of infections. On 9 March, the first two deaths in Germany were reported from Essen and Heinsberg. New clusters were introduced in other regions via Heinsberg as well as via people arriving from China, Iran and Italy, from where non-Germans could arrive by plane until 17–18 March. From 13 March, German states mandated school and kindergarte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BVG Class D
Class D was a type of electric multiple unit train used by the Berlin U-Bahn. After World War II the trains of the Berlin U-Bahn were worn out, making a new series of trains necessary. From 1957 on the new ''D'' type trains were delivered (also called Stahldora/Steel Dora). They were made of steel, making them very heavy. In 1965, the ''DL'' type was developed, which was constructed from lighter metals (also called Dora). This way, weight was reduced by 26%. Like in earlier types the seats were located along the sides of the train. Class D The D type cars have been introduced in various phases: *D 55: The test vehicle (2000/2001), which is on the Line C II (Mehringdamm - Tempelhof) *D 57: 26 trains (2002/2003 - 2052/2053), which is on the Line C I, during the opening of the line to Tegel (now known as U6). *D 60: 30 trains (2054/2055 - 2112/2113), which is on the Line G (now known as U9, the line was built as an alternative line when the Berlin Wall is built). *D 63: 36 trains ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regenerative Braking
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 elec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stadler Tango
The Tango is a light rail vehicle and tram made by Stadler Rail. It can be built as either a 100% high-floor or 70% low-floor articulated unit. It is in use in Bochum, Berlin (BVG-Class IK), Basel, Geneva, Lyon and Aarhus. Characteristics The cities operating Tango are demanding the following characteristics for their rolling stock: speed (up to ), robustness, security and compatibility with the common use of infrastructure, economic (capacity adapted to the traffic and prospects for their development) as well as comfort and aesthetics. In the case of the Appenzell Railways, the light rail needs to deal also with strong gradients in the foothills south of St. Gallen. Usage In Lyon, the Tango tram is serving the express line Rhônexpress linking downtown with Saint Exupéry Airport, and its TGV train station, opened in 2010. An order of 32 vehicles has been placed by the city of Geneva in December 2009. 20 were ordered by Stuttgarter Strassenbahnen, the first one being co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berlin U-Bahn
The Berlin U-Bahn (; short for , "underground railway") is a rapid transit system in Berlin, the capital and largest city of Germany, and a major part of the city's public transport system. Together with the S-Bahn, a network of suburban train lines, and a tram network that operates mostly in the eastern parts of the city, it serves as the main means of transport in the capital. Opened in 1902, the serves 175 stations spread across nine lines, with a total track length of , about 80% of which is underground. Trains run every two to five minutes during peak hours, every five minutes for the rest of the day and every ten minutes in the evening. Over the course of a year, U-Bahn trains travel , and carry over 400 million passengers. In 2017, 553.1 million passengers rode the U-Bahn. The entire system is maintained and operated by the , commonly known as the BVG. Designed to alleviate traffic flowing into and out of central Berlin, the U-Bahn was rapidly expanded until the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical 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] |
Scharfenberg Coupler
The Scharfenberg coupler (german: Scharfenbergkupplung, abbreviated ''Schaku'') is a commonly used type of fully automatic railway coupling. Designed in 1903 by Karl Scharfenberg in Königsberg, Germany (today Kaliningrad, Russia), the coupler has gradually spread from transit trains to regular passenger service trains, although outside Europe its use is generally restricted to mass transit systems. The ''Schaku'' is superior in many ways to the AAR (Janney/knuckle) coupler because it also automates electrical and pneumatic connections and disconnections. However, there is no standard for the placement of these electro-pneumatic connections. Some rail operators have placed them on the sides while others have placed them either below or above the mechanical portion of the coupler. . Working principles The face of the Scharfenberg coupler has a protruding cone and a matching cup. Inside the cone there is a rigid metal hoop connected to a revolving, spring-loaded metal disk with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dynamic Braking
Dynamic braking is the use of an electric traction motor as a generator when slowing a vehicle such as an electric or diesel-electric locomotive. It is termed " rheostatic" if the generated electrical power is dissipated as heat in brake grid resistors, and " regenerative" if the power is returned to the supply line. Dynamic braking reduces wear on friction-based braking components, and regeneration lowers net energy consumption. Dynamic braking may also be used on railcars with multiple units, light rail vehicles, electric trams, trolleybuses, and electric and hybrid electric automobiles. Principle of operation Converting electrical energy to the mechanical energy of a rotating shaft (electric motor) is the inverse of converting the mechanical energy of a rotating shaft to electrical energy (electric generator). Both are accomplished through the interactions of armature windings with a (relatively) moving external magnetic field, with the armature connected to an electr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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