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AEM-7
AEM-7
AEM-7 916 at Union Station, Washington, D. C. , in an older paint scheme. This locomotive has since been converted to an AEM-7AC (see the main article below).
Power type Electric
Designer Allmänna Svenska Elektriska Aktiebolaget (ASEA)
Builder Electro-Motive Division
Build date 1978 – 1988
Total production 65
AAR wheel arr. B-B
UIC classification Bo'Bo'
Gauge 4 ft 8½ in (1,435 mm)
Length 51 ft (15. ASEA ( Allmänna Svenska Elektriska Aktiebolaget) was a Swedish industry company Electro-Motive Diesel Inc (formerly the Electro-Motive Division of General Motors Corporation is currently the world's second largest builder of Railroad The AAR wheel arrangement system is a method of classifying locomotive (or unit Wheel arrangements that was developed by the Association of American Railroads. The AAR wheel arrangement system is a method of classifying locomotive (or unit Wheel arrangements that was developed by the Association of American Railroads. The UIC classification is a comprehensive system for describing the Wheel arrangement of Locomotives Multiple units and Trams It is Rail gauge is the distance between the inner sides of the two parallel rails that make up a railway track. 54 m)
Locomotive weight 101 tons (202,000 lb, 91,708 kg)
Electric system(s) 11,000 V AC, 25 Hz
11,000-13,500 V AC, 60 Hz
25,000 V AC, 60 Hz
Curent collection method Overhead AC with dual pantographs
Top speed 125 mph (201 km/h) for Northeast Regional
110 mph (177 km/h) for long-distance trains
Power output 7,000 hp (5. The pound or pound-mass (abbreviation lb, lbm, or sometimes in the United States #) is a unit of Mass Railway electrification supplies electrical energy to railway Locomotives and Multiple units so they can operate without having a Reciprocating The volt (symbol V) is the SI derived unit of electric Potential difference or Electromotive force. An alternating current ( AC) is an Electric current whose direction reverses cyclically as opposed to Direct current, whose direction remains constant The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second. The volt (symbol V) is the SI derived unit of electric Potential difference or Electromotive force. An alternating current ( AC) is an Electric current whose direction reverses cyclically as opposed to Direct current, whose direction remains constant The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second. The volt (symbol V) is the SI derived unit of electric Potential difference or Electromotive force. An alternating current ( AC) is an Electric current whose direction reverses cyclically as opposed to Direct current, whose direction remains constant The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second. An alternating current ( AC) is an Electric current whose direction reverses cyclically as opposed to Direct current, whose direction remains constant A pantograph is a device that collects electric current from Overhead lines for electric Trains or Trams The term stems from the resemblance to pantograph (For the South African airport with IATA code "KMH" see Johan Pienaar Airport. The Northeast Regional is Amtrak 's service between Newport News Virginia and Boston Massachusetts. (For the South African airport with IATA code "KMH" see Johan Pienaar Airport. 2 MW)
Career Amtrak, MARC and SEPTA
Number AMT 901-902, 904-912, 914-953;
MARC 4900-4903;
SEPTA 2301-2307
Nicknames Toasters; Swedish Meatballs; Mighty Mouse
Locale Amtrak's Northeast Corridor between Boston and Washington, DC

The AEM-7 is a B-B electric locomotive that is used in the United States on the Northeast Corridor between Washington DC and Boston and the Keystone Corridor between Philadelphia and Harrisburg in Pennsylvania. The National Railroad Passenger Corporation, Doing business as Amtrak, is a Government-owned corporation that was organized on May 1, 1971 MARC, prior to 1984 known as Maryland Rail Commuter Service, is a Regional rail system comprising three lines in the Baltimore-Washington Metropolitan Area The Southeastern Pennsylvania Transportation Authority ( SEPTA) is a regional public authority that operates various forms of public transit &mdash bus The AAR wheel arrangement system is a method of classifying locomotive (or unit Wheel arrangements that was developed by the Association of American Railroads. "Electric Trains" redirects here For the 1995 Squeeze single see Electric Trains (song. The United States of America —commonly referred to as the The Northeast Corridor ( NEC) is the busiest passenger rail line in the United States by ridership and service frequency Washington DC ( formally the District of Columbia and commonly referred to as Washington, the District, or simply D The Keystone Corridor is a Federal Railroad Administration (FRA "designated high speed corridor" with a 349-mile (562 km railroad line between Philadelphia Philadelphia (ˌfɪləˈdɛlfiə Harrisburg is the Capital of the Commonwealth of Pennsylvania, in the United States of America The Commonwealth of Pennsylvania ( often colloquially referred to as PA (its abbreviation by natives and Northeasterners is a state located in the Northeastern They were built by Electro-Motive Division from 1978 to 1988. Electro-Motive Diesel Inc (formerly the Electro-Motive Division of General Motors Corporation is currently the world's second largest builder of Railroad Year 1978 ( MCMLXXVIII) was a Common year starting on Sunday (link displays the 1978 Gregorian calendar) Year 1988 ( MCMLXXXVIII) was a Leap year starting on Friday (link displays 1988 Gregorian calendar) In the Boston Mechanical Department of Amtrak they are known as "Meatballs" and in the Washington Mechanical Department they are knowns as ASEAs since some of their major parts and components were designed in Sweden by ASEA (Allmänna Svenska Elektriska Aktiebolaget), which was merged with ABB (Asea Brown Boveri) in 1988). The National Railroad Passenger Corporation, Doing business as Amtrak, is a Government-owned corporation that was organized on May 1, 1971 ASEA ( Allmänna Svenska Elektriska Aktiebolaget) was a Swedish industry company "Sverige" redirects here For other uses see Sweden (disambiguation and Sverige (disambiguation. ASEA ( Allmänna Svenska Elektriska Aktiebolaget) was a Swedish industry company } ABB, formerly Asea Brown Boveri, is a Multinational corporation headquartered in Zürich, Switzerland, operating mainly in the power Year 1988 ( MCMLXXXVIII) was a Leap year starting on Friday (link displays 1988 Gregorian calendar) They are also affectionately referred to as "toasters" by railfans owing to their boxy appearance.

Contents

History

After the apparent lack of success of the GE E60 electric locomotives in the mid-1970s. The GE E60 is a C-C Electric locomotive made by GE Transportation Systems. This article is about the Decade 1970-1979 For the Year 1970 see 1970. Amtrak began to look for a successor to the famous Pennsylvania Railroad GG1 electric locomotive. The Pennsylvania Railroad was an American Railroad, founded in 1846 The Pennsylvania Railroad 's GG1 class of Electric locomotives were built between 1934 to 1943 at the PRR shops in Altoona Pennsylvania, with a total of Existing European designs (with proven reliability) were considered. Two European locomotives were brought over for a series of trials in 1977. Also 1977 (album by Ash. Year 1977 ( MCMLXXVII) was a Common year starting on Saturday (link displays One was a French CC 21000 class given number X996,[1] and the other was a Swedish Rc4, X995. Rc is the most used Electric locomotive in Sweden. Rc is a universal locomotive used both in freight and passenger trains [2] Amtrak favored the Swedish design, which became the base for the AEM-7. Amtrak first ordered 30 AEM-7s in 1977 (Order Number: 776073), then ordered additional 17 AEM-7s in 1980 (Order Number: 806004). Year 1980 ( MCMLXXX) was a Leap year starting on Tuesday (link displays the 1980 Gregorian calendar) [3]

By 1978 Electro-Motive Division (EMD) began production. Year 1978 ( MCMLXXVIII) was a Common year starting on Sunday (link displays the 1978 Gregorian calendar) Electro-Motive Diesel Inc (formerly the Electro-Motive Division of General Motors Corporation is currently the world's second largest builder of Railroad The bodies came from the Budd Company, with electrical, trucks and mechanical parts imported from Sweden. The Budd Company (now ThyssenKrupp Budd) is a metal fabricator and major supplier of body components to the Automobile industry "Sverige" redirects here For other uses see Sweden (disambiguation and Sverige (disambiguation. The first AEM-7 (900) was delivered to Amtrak and went into service in 1979. Year 1979 ( MCMLXXIX) was a Common year starting on Monday (link displays the 1979 Gregorian calendar)

Between 1980 and 1982, 46 AEM-7s (901-946) went into service. Year 1980 ( MCMLXXX) was a Leap year starting on Tuesday (link displays the 1980 Gregorian calendar) Year 1982 ( MCMLXXXII) was a Common year starting on Friday (link displays the 1982 Gregorian calendar) This helped retire the last GG1s from regular service. The Pennsylvania Railroad 's GG1 class of Electric locomotives were built between 1934 to 1943 at the PRR shops in Altoona Pennsylvania, with a total of Amtrak ordered seven more AEM-7s in 1987 (Order Number: 876006), which were completed by 1988. Year 1987 ( MCMLXXXVII) was a Common year starting on Thursday (link displays 1987 Gregorian calendar) Year 1988 ( MCMLXXXVIII) was a Leap year starting on Friday (link displays 1988 Gregorian calendar)

The AEM-7 weighs only 101 tons, whereas the GG1 weighs 238 tons. The Pennsylvania Railroad 's GG1 class of Electric locomotives were built between 1934 to 1943 at the PRR shops in Altoona Pennsylvania, with a total of With all the weight on eight drivers, the AEM-7 has the highest horsepower to weight ratio (70 hp/ton) ever, coupled with a sophisticated wheelslip control (Pressductor) system.

On January 4, 1987, locomotives 900 and 903 were destroyed in a fatal collision with a Conrail freight train in Maryland. Events 46 BC - Titus Labienus defeats Julius Caesar in the Battle of Ruspina. Year 1987 ( MCMLXXXVII) was a Common year starting on Thursday (link displays 1987 Gregorian calendar) The Chase Maryland train wreck occurred at 104 pm on January 4, 1987, on Amtrak 's Northeast Corridor main line in Chase Maryland Consolidated Rail Corporation, also known as Conrail, began operations on April 1, 1976 as a federally funded takeover of the major railroad Locomotive 913 was heavily damaged by fire in November 2000 and then removed from the active roster in February 2003. Year 2003 ( MMIII) was a Common year starting on Wednesday of the Gregorian calendar. Locomotive 930 was damaged by fire on June 29, 2003 at Elkton, MD. Events 512 - A Solar eclipse is recorded by a monastic chronicler in Ireland. Year 2003 ( MMIII) was a Common year starting on Wednesday of the Gregorian calendar. Elkton is a town in Cecil County, Maryland, United States. The population was 11893 as of the 2000 census On July 8, 2003, locomotive 922 was also seriously damaged by fire, and locomotive 910 caught fire on October 5, 2007. Events 939 - The Major Occultation or Ghaybat el-Kubra of Muhammad al-Mahdi 1099 - First Crusade: 15000 Year 2003 ( MMIII) was a Common year starting on Wednesday of the Gregorian calendar. Events 869 - The Fourth Council of Constantinople is convened to decide about what to do about Patriarch Photius of Constantinople Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. [4]

Currently there are 51 AEM-7s on the Amtrak roster, numbers 901 through 953 except 903 and 913. The National Railroad Passenger Corporation, Doing business as Amtrak, is a Government-owned corporation that was organized on May 1, 1971 In addition to Amtrak, MARC and SEPTA also operate AEM-7s in commuter service, with 4 and 7 units respectively. MARC, prior to 1984 known as Maryland Rail Commuter Service, is a Regional rail system comprising three lines in the Baltimore-Washington Metropolitan Area The Southeastern Pennsylvania Transportation Authority ( SEPTA) is a regional public authority that operates various forms of public transit &mdash bus The MARC units (4900-03) were built in 1986, and the SEPTA units (2301-07) were built in 1987. Year 1986 ( MCMLXXXVI) was a Common year starting on Wednesday (link displays 1986 Gregorian calendar) Year 1987 ( MCMLXXXVII) was a Common year starting on Thursday (link displays 1987 Gregorian calendar) In October 2006, Amtrak, due to the upgrade of the Keystone Corridor between Harrisburg and Philadelphia, started running electrified "push-pull" service on its Keystone trains, with the AEM-7 "trailing" eastbound and "leading" westbound. Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. The Keystone Corridor is a Federal Railroad Administration (FRA "designated high speed corridor" with a 349-mile (562 km railroad line between Philadelphia Harrisburg is the Capital of the Commonwealth of Pennsylvania, in the United States of America Philadelphia (ˌfɪləˈdɛlfiə All Amtrak AEM-7s on the Northeast Corridor, regardless of direction, lead their trains (no push-pull operation). The Northeast Corridor ( NEC) is the busiest passenger rail line in the United States by ridership and service frequency MARC, SEPTA, and Amtrak Keystone Service trains operate the AEM-7s in push-pull mode, with a cab car on one end of the train and the locomotive on the other end.

AEM-7AC

AEM-7AC 939 at BWI Rail Station
AEM-7AC 939 at BWI Rail Station

In 1999, Amtrak and Alstom began a remanufacturing program for Amtrak AEM-7s. Year 1999 ( MCMXCIX) was a Common year starting on Friday (link will display full 1999 Gregorian calendar) The National Railroad Passenger Corporation, Doing business as Amtrak, is a Government-owned corporation that was organized on May 1, 1971 Alstom ( is a large French multinational conglomerate which holds interests in the power generation and Transport markets Alstom supplied AC propulsion equipment, electrical cabinets, transformers, head-end power (HEP), and cab displays so that they have AC traction motors, improved propulsion, and improved torque. Alstom ( is a large French multinational conglomerate which holds interests in the power generation and Transport markets An alternating current ( AC) is an Electric current whose direction reverses cyclically as opposed to Direct current, whose direction remains constant Head end power (HEP or Electric train supply ( ETS) in the United Kingdom is a Rail transport term for the electrical power distribution system See also Electric vehicle, Electric motor A traction motor is a type of Electric motor used to power the driving wheels of a vehicle such as A torque (τ in Physics, also called a moment (of force is a pseudo- vector that measures the tendency of a force to rotate an object about Amtrak workers performed the overhauls under Alstom supervision at Amtrak's shop in Wilmington, Delaware. Wilmington is the largest city in the state of Delaware, United States and is located at the confluence of the Christina River and Brandywine [5]

The power modules use water-cooled IGBT technology and provide 5 MW of traction power plus 1 MW of HEP, enough for 12 coaches. The insulated-gate bipolar transistor or IGBT is a three-terminal Power semiconductor device, noted for high efficiency and fast switching As such, the remanufactured AEM-7 is the world's first passenger locomotive with IGBT in service.

The cab of the remanufactured AEM-7 was also upgraded. This was accomplished by adding two screens, one of which displays main functions and verifies operations; the other, failures and their location to improve locomotive availability.

These remanufactured AEM-7s are designated as "AEM-7AC". Due to the lack of funding, the AEM-7AC project ended in October 2002. Between 1999 and 2002, 29 AEM-7s were converted to AEM-7ACs. Five AEM-7ACs, 916, 918, 924, 901 and 905 (in chronological order), went under overhauls in FY 2006. A fiscal year (or financial year, or sometimes budget year) is a period used for calculating annual ("yearly" Financial statements in Businesses Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. [6]

AEM-7ACs are most easily distinguished from AEM-7s by their roof appearance. All AEM-7ACs have their resistors scattered around the roof. Their air filters are located on the middle of the roof, where the resistors use to be. Smaller air conditioners are used at each end to make room for scattered resistors on the roof. For AEM-7ACs 916, 918, 924, 901 and 905 prior to their FY 2006 overhauls, their air filters were located around the sides of pantographs and like their DC counterparts, the resistors were on the middle of the roof. A fiscal year (or financial year, or sometimes budget year) is a period used for calculating annual ("yearly" Financial statements in Businesses Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar.

Moreover, all AEM-7ACs except 916 are equipped with "electronic"-sound-like bells, while all AEM-7s and AEM-7AC 916 retain their original bells.

The 29 AEM-7ACs are 901, 904, 905, 908, 914, 916-921, 923-925, 927-929, 934-936, 938-944, 946 and 948.

ALP-44: Variant of the AEM-7

Main article: ALP-44

The ALP-44 is an electric locomotive built by Asea Brown Boveri (Sweden) between 1990 and 1996. } ABB, formerly Asea Brown Boveri, is a Multinational corporation headquartered in Zürich, Switzerland, operating mainly in the power Year 1990 ( MCMXC) was a Common year starting on Monday (link displays the 1990 Gregorian calendar) Year 1996 ( MCMXCVI) was a Leap year starting on Monday (link will display full 1996 Gregorian calendar) It was designed specifically for New Jersey Transit. The New Jersey Transit Corporation (usually shortened to New Jersey Transit, NJ Transit or NJT) is a statewide Public transportation system serving At first glance, the two locomotives might look the same to a casual observer. Both the ALP-44 and AEM-7 are based on the same line of locomotives from ABB; the AEM-7 from the Rc4, and the ALP-44 from the Rc6 and Rc7 models. Rc is the most used Electric locomotive in Sweden. Rc is a universal locomotive used both in freight and passenger trains Rc is the most used Electric locomotive in Sweden. Rc is a universal locomotive used both in freight and passenger trains Rc is the most used Electric locomotive in Sweden. Rc is a universal locomotive used both in freight and passenger trains

ABB provided one ALP-44 to SEPTA in part settlement of claims for late delivery of the N-5 Norristown High Speed Line cars. The Southeastern Pennsylvania Transportation Authority ( SEPTA) is a regional public authority that operates various forms of public transit &mdash bus SEPTA Route 100, also known as the Norristown High-Speed Line, is an Interurban line system operating between Upper Darby and Norristown The engine (numbered 2308) operates interchangeably with SEPTA's AEM-7 fleet.

References and notes

  1. ^ Amtrak's X996. Retrieved on 2006-09-08. Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. Events 70 - Roman forces under Titus sack Jerusalem. 1264 - The Statute of Kalisz
  2. ^ Bengt Muten. The original Swedish meatball - SJ Rc4 testing as Amtrak X995. Retrieved on 2006-09-08. Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. Events 70 - Roman forces under Titus sack Jerusalem. 1264 - The Statute of Kalisz
  3. ^ EMD electric order numbers. Retrieved on 2006-09-08. Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. Events 70 - Roman forces under Titus sack Jerusalem. 1264 - The Statute of Kalisz
  4. ^ "Amtrak AEM-7 catches fire on Northeast Corridor", Trains News Wire, Kalmbach Publishing, 2007-10-08. Kalmbach Publishing Co is an American Publisher of Magazines and books many of them railroad-related Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 314 - Roman Emperor Licinius is defeated by his colleague Constantine I at the Battle of Cibalae, and loses Retrieved on 2007-10-18. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 1009 - The Church of the Holy Sepulchre, a Christian church in Jerusalem, is completely destroyed by the Fatimid  
  5. ^ New life for an old workhorse, Railway Age, May 2000
  6. ^ Mechanical goals advance toward a state of good repair. May 2000: January - February - March - April - May - June - July - August - September Destination: Freedom Newsletter (2006-05-08). Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. Events 589 - Reccared summons the Third Council of Toledo 1450 - Jack Cade's Rebellion: Kentishmen

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