Siemens SD-400
Encyclopedia
The Siemens SD-400 LRV is an electric
light rail vehicle (LRV) locomotive built by Siemens-Duewag AG
. It is powered by four individual Siemens DC-IBGT electric motors with each one developing 200 hp and creating a combined total power output of 800 hp. Electric current is received via an overhead catenary wire
which supplies 750 volt
s into its DC
motors. The unit's frame is also built upon a B-B-B
truck configuration mounted underneath a double-ended articulated body
, which has a seating capacity for 72 people and room for an additional 106 standing passengers.
More than 80 SD-400 units were produced between 1985 and 1993, with all being manufactured at Siemens' primary manufacturing plant at their home base in Germany
. The SD-400 is currently used by two transit operators, the Port Authority of Allegheny County
in Pittsburgh
and MetroLink in St. Louis, Missouri
.
Electric locomotive
An electric locomotive is a locomotive powered by electricity from overhead lines, a third rail or an on-board energy storage device...
light rail vehicle (LRV) locomotive built by Siemens-Duewag AG
Siemens
Siemens may refer toSiemens, a German family name carried by generations of telecommunications industrialists, including:* Werner von Siemens , inventor, founder of Siemens AG...
. It is powered by four individual Siemens DC-IBGT electric motors with each one developing 200 hp and creating a combined total power output of 800 hp. Electric current is received via an overhead catenary wire
Overhead lines
Overhead lines or overhead wires are used to transmit electrical energy to trams, trolleybuses or trains at a distance from the energy supply point...
which supplies 750 volt
Volt
The volt is the SI derived unit for electric potential, electric potential difference, and electromotive force. The volt is named in honor of the Italian physicist Alessandro Volta , who invented the voltaic pile, possibly the first chemical battery.- Definition :A single volt is defined as the...
s into its DC
Direct current
Direct current is the unidirectional flow of electric charge. Direct current is produced by such sources as batteries, thermocouples, solar cells, and commutator-type electric machines of the dynamo type. Direct current may flow in a conductor such as a wire, but can also flow through...
motors. The unit's frame is also built upon a B-B-B
Bo-Bo-Bo
thumb|Italian articulated Bo-Bo-Bo [[FS Class E656|E656]] locomotive, [[Rome]], June 2, 2006.A Bo-Bo-Bo in UIC classification is a locomotive with three independent two-axle bogies with all axles powered...
truck configuration mounted underneath a double-ended articulated body
Articulated car
Articulated cars are rail vehicles which are consist of a number of smaller, lighter cars which are semi-permanently attached to each other and which share common trucks. They are much longer than single passenger cars, and on the TGV Réseau, for example, 8 cars are joined this way...
, which has a seating capacity for 72 people and room for an additional 106 standing passengers.
More than 80 SD-400 units were produced between 1985 and 1993, with all being manufactured at Siemens' primary manufacturing plant at their home base in Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...
. The SD-400 is currently used by two transit operators, the Port Authority of Allegheny County
Port Authority of Allegheny County
Port Authority of Allegheny County is the second-largest public transit agency in Pennsylvania and the 11th-largest in the United States. When considering that its service area is the 20th largest in the U.S...
in Pittsburgh
Pittsburgh, Pennsylvania
Pittsburgh is the second-largest city in the US Commonwealth of Pennsylvania and the county seat of Allegheny County. Regionally, it anchors the largest urban area of Appalachia and the Ohio River Valley, and nationally, it is the 22nd-largest urban area in the United States...
and MetroLink in St. Louis, Missouri
St. Louis, Missouri
St. Louis is an independent city on the eastern border of Missouri, United States. With a population of 319,294, it was the 58th-largest U.S. city at the 2010 U.S. Census. The Greater St...
.
Original Buyers
| Railroad | Quantity | Road Numbers | Built/Notes |
|---|---|---|---|
| Port Authority of Allegheny County Port Authority of Allegheny County Port Authority of Allegheny County is the second-largest public transit agency in Pennsylvania and the 11th-largest in the United States. When considering that its service area is the 20th largest in the U.S... |
|
|
Built 1985-1987, rehabbed 2005-2006 and renumbered 4201-4255. |
| Bi-State Transit of St. Louis St. Louis Metrolink MetroLink is the light rail transit system in the Greater St. Louis area of Missouri and the Metro East area of Illinois. The entire system currently consists of two lines connecting Lambert-St. Louis International Airport and Shrewsbury, MO with Scott Air Force Base near Shiloh, Illinois through... |
|
|
Built 1991-1993 |
| Total | 86 | ||
See also
- List of Siemens locomotives
- Siemens SD-460Siemens SD-460The Siemens SD-460 LRV is an electric light rail vehicle locomotive built by Siemens-USA AG; it is very similar in appearance to the older Siemens SD-400 model with the exception of this version using AC traction motors and updated electronic systems instead...
- Siemens SD-160Siemens SD-160The SD-100 and SD-160 are light-rail vehicles manufactured by Siemens. The SD-100 uses motors that run on direct-current electricity while the SD-160 model features newer motors that run using alternating current. Both models are suited for loading at street level and high-platform level...
- Siemens U2