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DRG Class ET 125
The 1941 Class ET 125, later adjusted series 276.0 (DR) or 477 (DBAG), was an electric railcar which traversed the DC-powered S-train, S-Bahn in Berlin during 1934/35. It was built in 1936 and 1938. The cars, which were popularly known as ''banker trains'', were rebuilt after World War II and the series ET / EB 166 adapted. Among other things, they lost the more powerful 1949/50 traction motors. From the 1970s, they were included in the modernization program and in series 277 rebuilt (after 1991 477/877), they were used on Berlin's S-Bahn network until 2003. These trains were deployed when the section between Berlin Potsdamer Bahnhof, Potsdamer Ringbahnhof and Wannsee were electrified including the part of Zehlendorf (Berlin), Zehlendorf stretch. Berlin S-Bahn Train-related introductions in 1934 {{Berlin-SBahn-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volt
The volt (symbol: V) is the unit of electric potential, electric potential difference ( voltage), and electromotive force in the International System of Units (SI). It is named after the Italian physicist Alessandro Volta (1745–1827). Definition One volt is defined as the electric potential between two points of a conducting wire when an electric current of one ampere dissipates one watt of power between those points. Equivalently, it is the potential difference between two points that will impart one joule of energy per coulomb of charge that passes through it. It can be expressed in terms of SI base units ( m, kg, s, and A) as : \text = \frac = \frac = \frac. It can also be expressed as amperes times ohms (current times resistance, Ohm's law), webers per second (magnetic flux per time), watts per ampere (power per current), or joules per coulomb (energy per charge), which is also equivalent to electronvolts per elementary charge: : \text = \text\Omeg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Direct Current
Direct current (DC) is one-directional flow of electric charge. An electrochemical cell is a prime example of DC power. Direct current may flow through a conductor such as a wire, but can also flow through semiconductors, insulators, or even through a vacuum as in electron or ion beams. The electric current flows in a constant direction, distinguishing it from alternating current (AC). A term formerly used for this type of current was galvanic current. The abbreviations ''AC'' and ''DC'' are often used to mean simply ''alternating'' and ''direct'', as when they modify '' current'' or '' voltage''. Direct current may be converted from an alternating current supply by use of a rectifier, which contains electronic elements (usually) or electromechanical elements (historically) that allow current to flow only in one direction. Direct current may be converted into alternating current via an inverter. Direct current has many uses, from the charging of batteries to large po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Third Rail
A third rail, also known as a live rail, electric rail or conductor rail, is a method of providing electric power to a railway locomotive or train, through a semi-continuous rigid conductor placed alongside or between the rails of a railway track. It is used typically in a mass transit or rapid transit system, which has alignments in its own corridors, fully or almost fully segregated from the outside environment. Third rail systems are usually supplied from direct current electricity. Modern tram systems, street-running, avoid the risk of electrocution by the exposed electric rail by implementing a segmented ground-level power supply, where each segment is electrified only while covered by a vehicle which is using its power. The third-rail system of electrification is not related to the third rail used in dual gauge railways. Description Third-rail systems are a means of providing electric traction power to trains using an additional rail (called a "conductor rail") ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contact Shoe
Electric current collectors are used by trolleybuses, trams, electric locomotives or EMUs to carry electrical power from overhead lines, electrical third rails, or ground-level power supplies to the electrical equipment of the vehicles. Those for overhead wires are roof-mounted devices, those for rails are mounted on the bogies. Typically, electric current connectors have one or more spring-loaded arms that press a collector or contact shoe against the rail or overhead wire. As the vehicle moves, the contact shoe slides along the wire or rail to draw the electricity needed to run the vehicle's motor. The current collector arms are electrically conductive but mounted insulated on the vehicle's roof, side or base. An insulated cable connects the collector with the switch, transformer or motor. The steel rails of the tracks act as the electrical return. Electric vehicles that collect their current from an overhead line system use different forms of one- or two-arm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railcar
A railcar (not to be confused with a railway car) is a self-propelled railway vehicle designed to transport passengers. The term "railcar" is usually used in reference to a train consisting of a single coach (carriage, car), with a driver's cab at one or both ends. Some railway companies, such as the Great Western, termed such vehicles " railmotors" (or "rail motors"). Self-propelled passenger vehicles also capable of hauling a train are, in technical rail usage, more usually called " rail motor coaches" or "motor cars" (not to be confused with the motor cars, otherwise known as automobiles, that operate on roads). The term is sometimes also used as an alternative name for the small types of multiple unit which consist of more than one coach. That is the general usage nowadays in Ireland when referring to any diesel multiple unit (DMU), or in some cases electric multiple unit (EMU). In North America the term "railcar" has a much broader sense and can be used (as an ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
S-train
The S-Bahn is the name of hybrid urban-suburban rail systems serving a metropolitan region in German-speaking countries. Some of the larger S-Bahn systems provide service similar to rapid transit systems, while smaller ones often resemble commuter or even regional rail. The term derives from ''Schnellbahn'', ''Stadtbahn'' or ''Stadtschnellbahn''. Similar systems in Switzerland are known as S-Bahn as well. In Belgium it is known as S-Trein (Flemish) or Train S (French). In Belgium there are S-Trains in the five largest cities: Brussels, Antwerp, Liège, Ghent and Charleroi. In Denmark, they are known as S-tog , in the Czech Republic as Esko or S-lines. Characteristics There is no complete definition of an S-Bahn system. S-Bahn are, where they exist, the most local type of railway stopping at all existing stations inside and around a city, while other mainline trains only call at major stations. They are slower than mainline railways but usually serve as fast crosstown ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berlin
Berlin is Capital of Germany, the capital and largest city of Germany, both by area and List of cities in Germany by population, by population. Its more than 3.85 million inhabitants make it the European Union's List of cities in the European Union by population within city limits, most populous city, as measured by population within city limits having gained this status after the United Kingdom's, and thus London's, Brexit, departure from the European Union. Simultaneously, the city is one of the states of Germany, and is the List of German states by area, third smallest state in the country in terms of area. Berlin is surrounded by the state of Brandenburg, and Brandenburg's capital Potsdam is nearby. The urban area of Berlin has a population of over 4.5 million and is therefore the most populous urban area in Germany. The Berlin/Brandenburg Metropolitan Region, Berlin-Brandenburg capital region has around 6.2 million inhabitants and is Germany's second-largest metropolitan reg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berlin Potsdamer Bahnhof
The Potsdamer Bahnhof is a former railway terminus in Berlin, Germany. It was the first railway station in Berlin, opening in 1838. It was located at Potsdamer Platz, about 1 km south of the Brandenburg Gate, and kick-started the transformation of Potsdamer Platz from an area of quiet villas near the south-east corner of the Tiergarten park into the bustling focal point that it eventually became. For more than a century it was the terminus for long-distance and suburban trains. Also located at this spot were underground stations on the Berlin U-Bahn and S-Bahn, and today's new underground ''Regionalbahnhof'', known as Bahnhof Potsdamer Platz, while the short-lived M-Bahn crossed the site of the former terminus. Early days The Potsdamer Bahnhof was the Berlin terminus of the city's first railway, linking it with Potsdam. Begun in 1835, it was opened from the Potsdam end as far as Zehlendorf on 22 September 1838, and its entire length of 26 km on 29 October. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wannsee
Wannsee () is a locality in the southwestern Berlin borough of Steglitz-Zehlendorf, Germany. It is the westernmost locality of Berlin. In the quarter there are two lakes, the larger '' Großer Wannsee'' (Greater Wannsee, "See" means lake) and the '' Kleiner Wannsee'' (Little Wannsee), located on the River Havel and separated only by the Wannsee Bridge. The larger of the two lakes covers an area of and has a maximum depth of . Geography Overview At the western rim of the Wannsee locality the Glienicke Bridge connects it with the city of Potsdam. The late neoclassical Glienicke Palace as well as the Pfaueninsel are nearby. Since 1990 these palaces and parks have formed part of the Palaces and Parks of Potsdam and Berlin UNESCO World Heritage Site. The locality is centred on the ancient village of Stolpe, known to exist in 1299. The locality also includes the districts of Kohlhasenbrück (named after the 1811 novella '' Michael Kohlhaas'' by Heinrich von Kleist) and Steinst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zehlendorf (Berlin)
Zehlendorf () is a locality within the borough of Steglitz-Zehlendorf in Berlin. Before Berlin's 2001 administrative reform Zehlendorf was a borough in its own right, consisting of the locality of Zehlendorf as well as Wannsee, Nikolassee and Dahlem. Zehlendorf contains some of the most remarked upon natural settings in Berlin, including parts of the Grunewald forest and the ''Schlachtensee'', ''Krumme Lanke'' and ''Waldsee'' lakes. Additionally, it has large affluent residential neighborhoods, some with cobblestone streets and buildings that are over 100 years old. History The village of Zehlendorf was first mentioned as ''Cedelendorp'' in a 1245 contract between the Margraves John I and Otto III of Brandenburg and the Lehnin Abbey. Probably a German foundation, the name ''Cedelen'' appears to be a dialect word for "settlement" (modern German ), or "noble" (''Cedelendorp'' = ''Cedelen'' + ''dorp'', "noble village" (see ). In the affluent and well-educated environment of Zeh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berlin S-Bahn
The Berlin S-Bahn () is a rapid transit railway system in and around Berlin, the capital city of Germany. It has been in operation under this name since December 1930, having been previously called the special tariff area ''Berliner Stadt-, Ring- und Vorortbahnen'' (Berlin city, orbital, and suburban railways). It complements the Berlin U-Bahn and is the link to many outer-Berlin areas, such as Berlin Brandenburg Airport. As such, the Berlin S-Bahn blends elements of a commuter rail service and a rapid transit system. In its first decades of operation, the trains were steam-drawn; even after the electrification of large parts of the network, a number of lines remained under steam. Today, the term ''S-Bahn'' is used in Berlin only for those lines and trains with third-rail electrical power transmission and the special Berlin S-Bahn loading gauge. The third unique technical feature of the Berlin S-Bahn, the , is being phased out and replaced by a communications-based train contro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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