The DB Class 202, also commonly referred to under its manufacturers' designation Henschel-BBCDE2500, since it was only in experimental use and never purchased by the DB, is a class of diesel-electric locomotives designed for use on main and secondary lines for both passenger and freight trains.
One unit was converted to 1.5 kVDC operation under electric catenary, and used for evaluation by the Nederlandse Spoorwegen, as NS Class 1600P.
History
Streamlined DB 202 003
The class represents a major milestone in the German locomotive development, since in these locomotives three phase asynchronous electric traction was first applied in a mainline diesel-electric locomotive.
The DE2500 featured a light-weight and completely modular construction, which allowed the quick and easy exchange of whole sections of the locomotive, such as the prime mover, generator or alternator sections. It was both capable of driving on Co'Co' bogies (002, 004) as well as Bo'Bo' bogies (003). All the components of the electric sections - from generator to traction motors - were built to the latest state of the art featuring brushless, collectorless and nearly contactless operation, which resulted in long service intervals and high reliability.
The locomotives were extensively tested by the Deutsche Bundesbahn on its lines throughout Western Germany, starting in 1971 through the mid-1980s. They were stationed at Bw Mannheim with the following DB numbers:
202 002-2 (white)
202 003-0 (orange, later UmAn paint scheme)
202 004-8 (blue)
Conversion to electric locomotive
During the mid-1970s, locomotive 202-002 was converted for the Dutch railways (NS) into an all-electric locomotive for 1.5 kV DC-overhead wire. It was painted in the Dutch yellow scheme, assigned the number 1600P and given the logos of the Dutch railways. A pantograph for the collection of the current from the overhead wire was installed, the diesel prime mover and the generator section were removed and replaced with ballast weight. The NS was very pleased with the results of the test cycles, but ultimately chose to acquire its serial-production Class 1600 from French manufacturers, based on the BB 7200, for both budget and delivery time considerations.
Test-run in Denmark
The Danish State Railways, DSB, tested the locomotive 202 004. The later acquired DSB Class ME, though heavier and stronger (115t, 3.300hp), were based on these prototypes. 37 of the class were built.
Models
DB Class 202 003 in Berlin museum.
An H0 scale model engine has been made of the BR 202 by the German company Heris.
Literature
Matthias Maier (1997), Diesellokomotiven deutscher Eisenbahnen (in German), Düsseldorf: alba
Markus Hehl, Eisenbahn-Kurier Special: Deutsche Diesellokomotiven (in German), Freiburg: EK-Verlag
Karl Gerhard Baur: Die Geschichte der Drehstromlokomotiven. EK-Verlag, Freiburg, 2005. ISBN3-88255-146-1
BBC Asynchronous motor drive for Diesel locomotives Order No. D VK 40810 E
Horst J. Obermayer: Diesellokomotiven - Mit Kleinlokomotiven, Stuttgart 1972.
A switcher or shunter, is a type of small locomotive used for maneuvering railway vehicles over short distances. Switchers do not usually move trains over long distances, instead they typically assemble trains in order for another locomotive to take over. Switchers often operate in a railyard or make short transfer runs. They may serve as the primary motive power on short branch lines or switching and terminal railroads.
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.
An electro-diesel locomotive is a type of locomotive that can be powered either from an electricity supply or by using the onboard diesel engine. For the most part, these locomotives are built to serve regional, niche markets with a very specific purpose.
The NS Class 6400 is a type of 4 axle diesel-electric freight locomotive. 120 were built by MaK and ABB between 1988 and 1994 for Nederlandse Spoorwegen.
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.
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 2,450 kilowatts (3,290 hp) and a starting tractive effort of 360 kilonewtons (81,000 lbf).
NSB Di 6, later designated ME 26 and DE 2700, is a class of twelve diesel-electric locomotives built by Siemens for the Norwegian State Railways (NSB). The prime mover provides a power output of 2,650 kilowatts (3,550 hp), a starting traction effort of 400 kilonewtons (90,000 lbf) and a maximum speed of 160 kilometres per hour (99 mph). They have a Co′Co′ wheel arrangement. The bidirectional locomotives were designed for use with both passenger and freight trains.
Alstom Traxx is a modular product platform of mainline diesel-electric and electric locomotives produced originally by Bombardier Transportation and later Alstom, which was built in both freight and passenger variants. The first version was a dual-voltage AC locomotive built for German railways from the year 2000. Later types included DC versions, as well as quadruple-voltage machines, able to operate on most European electrification schemes: 1.5/3.0 kV DC and 15/25 kV AC. The family was expanded in 2006 to include diesel-powered versions. Elements common to all variants include steel bodyshells, two bogies with two powered axles each, three-phase asynchronous induction motors, cooling exhausts on the roof edges, and wheel disc brakes.
In engineering, a prime mover is an engine that converts fuel to useful work. In locomotives, the prime mover is thus the source of power for its propulsion. In an engine-generator set, the engine is the prime mover, as distinct from the generator.
The DB Class V 162 is a class of four-axle diesel hydraulic locomotive built as a development of the DB Class V 160 for the Deutsche Bundesbahn from 1965 to 1968.
The DB Class 218 are a class of 4-axle, diesel-hydraulic locomotives acquired by the Deutsche Bundesbahn for use on main and secondary lines for both passenger and freight trains.
The Renfe Series 333 are high power six-axle diesel-electric locomotives built in the 1970s; at the time of their introduction they were the most powerful non-electric locomotives in Spain.
The Eurorunner family of locomotives are a series of medium- to high-power diesel-electric locomotives built by Siemens for the European market. Introduced from 2002 onwards, they share design characteristics with the successful Eurosprinter range of electric locomotives, also built by Siemens.
The DR 130 family of locomotives comprises the DR Class 130, DR Class 131, DR Class 132 and DR Class 142, in USSR locomotive called TE109 and TE129.
128 001, as registered at Deutsche Bahn, or 12X, as named by its manufacturer AEG Schienenfahrzeuge and its successive owners ADtranz and Bombardier Transportation, is an experimental high-performance electric locomotive built in 1994, which was operated as testbed and test locomotive until 2010. The design of the locomotive featured several technological innovations, including power electronics using new types of semiconductors and water cooling, a new final drive concept, a new bogie concept, and protruding windflaps for improved aerodynamics that gave the locomotive a unique look.
The East German electric locomotives of DR Class E 251(from 1970: 251, DBAG Class 171) were not standard engines either within the Deutsche Reichsbahn's or subsequently the Deutsche Bahn's fleet, due to the different specification of their electrical system. They were only used on the Blankenburg (Harz) – Königshütte line. Because this line had steep inclines, but connecting this isolated branch to the main traction network would have been very expensive, the Deutsche Reichsbahn electrified it in 1965 with a 25 kV 50 Hz system, which was different from the usual German catenary supply of 15 kV 16⅔ Hz. The 15 Co’Co’ engines were supplied by LEW and registered with the Reichsbahn as E 251 001 to 015.
The South African Railways Class 61-000 of 1959 was a diesel-hydraulic locomotive.
The South African Railways Class DS of 1939 was a diesel-electric locomotive.
The Transnet Freight Rail Class 20E of 2013 is a South African electric locomotive.
The DR Class V 180 of Deutsche Reichsbahn was a class of the largest diesel locomotives built in the German Democratic Republic. The manufacturer was Lokomotivbau Karl Marx Babelsberg (LKM).
This page is based on this Wikipedia article Text is available under the CC BY-SA 4.0 license; additional terms may apply. Images, videos and audio are available under their respective licenses.
