HSR-350x: Wikis


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Hangul 한국형 고속철도
Hanja 韓國形 高速鐵道
Revised Romanization Hangukhyeong Gosok Cheoldo
McCune–Reischauer Hankukhyŏng Kosok Ch'ŏlto
2777380415 7a66a08008.jpg
HSR-350x train that acchieved 350 km/h on December 2004.
Entered service 2002 (testing)
Capacity per coach:
1st class : 28 seats [2+1]
2nd class 56 seats [2+2][1]
Maximum speed operational : 350 km/h (220 mph)[1]
max. design speed : 385 km/h (239 mph)[1]
Traction system 1.1MW 3phase traction motor[1] (4 per power car, 2 per powered trailer)
Auxiliaries 670V DC, 1.4MW[1]
Power supply PWN inverter
Input : 2x1400V AC @930A
Ouput : 0-2183V AC , 760A supplying 2 parallel connected traction motors[1]
Electric system(s) 25kV 60Hz[1]
Current collection method single arm pantograph, 1000A[1]
Braking system(s) 3 disc brakes per axle[1]
eddy current brake in powered trailer[1]
wheel brake in power car[1]

The HSR-350x (High Speed Rail 350x) or Hanvit 350[3] is a prototype high speed train which was developed independently by South Korea.[4]

Development of the train started in 1996[2] as part of a project named G7[6] Prior to the G7 project Korea had used modified TGV trains known as KTX-I on its high speed rail system; built as part of a technology transfer agreement with Alstom through the Eukorail consortium[7]; the aim of the project was to gain independent expertise in high speed rail technologies.[2]

The G7 project started in 1996 which in 2002 led to the beginning of testing of the HSR-350x trainset ultimately enabled South Korea to create the 350 km/h (220 mph) KTX-II production trainset.[2]


The G7 research and design project

The original Korean high-speed train, the KTX-I was built in a technology transfer agreement with Alstom, however the ability of the Korean railways to modify and analyse the fundamental technology was limited by the terms of the agreement, and by lack of local expertise in high speed train technology. The G7 research and design project was started in 1996 to develop indigenous high speed rail expertise, and with a view to producing a high speed trainset suitable for export.[7] and reducing reliance on imported technologies.[8] 210 billion Won ($223 million) was allocated for the project which involved numerous companies and research institutions.[2]

The project was backed by the South Korean Ministry of Construction and Transportation, the Ministry of Commerce, Industry and Energy, and the Ministry of Science and Technology with the Korea Railroad Research Institute (KKRI) as the project management[1] in association with KITECH (Korea Institute of Industrial Technology) and ROTEM.[7]

The prototype train and development of related technologies (rolling test, train control system) was complete by october 2002.[1] Testing took place from november 2002 onwards.[9]

As a result of the project the south korean high speed train building ability increase to the level being able to produce more than 90% of the train indigenously; additionally creating future savings to the state estimated to be ~$5.8 billion through localised manufacture rather than importing, with additional financial and employment benefits in the rail industry area.[8]


HSR-350x design

In common with the KTX-I the HSR-350x uses an articulated design with power cars at both ends of the train; the coaches connected to the leading power cars are also motorised, the total formation is 6 (or 7[7]) vehicles including the power cars.[1]

The power car bodies are constructed from steel[1], however in contrast to the KTX-I the motorised and un-motorised trailers are of aluminium construction.[7] Other technological changes compared to the KTX-I system includes asynchronous induction motors instead of synchronous motors, with the associated PWM controlled IGCT power transistors. Additional new features included an additional eddy current brake and an active air pressure control system designed to minimised passenger discomfort when entering tunnels.[1] The maximum static axleload is 17tonnes.[9]

HSR-350x was intended to run 350 km/h (220 mph) in regular service, with a maximum design speed of 385 km/h (239 mph), faster than the 330 km/h (210 mph) of the KTX-I.[2]

The HSR-350x's seats are rotatable through 180 degrees.[10]

Testing and speed records.

The first test run took place on the 19th of August 2002 on the Seoul to Daegu (Gyeongbu High-speed Line) high-speed line, later in December 2004 a speed of 352 km/h (219 mph) was reached; by February 2008 the train had travelled over 200,000 km in tests.[2] During the test runs 60 km/h was acchieved in May 2002, 100 km/h in June 2002, 150 km/h in october 2002, 230 km/h in january 2003, 280 km/h in june 2003, and 300 km/h in august 2003.[9]

A top speed of 343.5 km/h (213.4 mph) was reached between Gwangmyeong and Sintanjin on 23/11/2004.[11] The train reached 352.4 km/h (219.0 mph) between Cheonan and Shintanjin on 16/12/2004, becoming the 4th train in the world to exceed 350 km/h[12][13][14]



In 2006, Hyundai Rotem won an order for 10 KTX-II trainsets, the production model of the HSR-350x, which was later increased to 19, destined for the Seoul-Mokpo, Iksan-Yeosu and Milyang-Masan lines.[15] On 25 November 2008, the first KTX-II set was revealed to the public in a roll-out ceremony at the Hyundai Rotem factory in Changwon.[16] South Korea will be the seventh country in the world after Japan, France, Germany, Italy, Spain and China to operate domestically developed trains in 300 km/h service.

Next generation high speed train design

The current state of the art (2009) in high speed train design uses distributed traction Electric-Multiple units designs for low axle load and high power and tractive effort. The Korean Railroad Research Institute and Rotem in association with the Koreaiinstitute of Construction & Transportation Evaluation and Planning (KICTEP) have started developing a new generation of high speed rail of this type, named HEMU-400X which will capable of a speed of 400kmph.[17] The prototype is due to start testing on 2011.

National and international connections

After winning successfully at the bid, six of 10-unit set KTX-2, derived type of HSR-350x, trains will be introduced and delivered on Honam Line by 2008.

The future goal for South Korea is to become one of the top four largest HSR producers in the world, by offering South Korean HSR products to China, Taiwan, and the United States.[18]

See also

References and notes

  1. ^ a b c d e f g h i j k l m n o p Development of High Speed Railway Technology : Korean High Speed Railway : Prototype Test Train HSR 350x Korean Railroad Research Institute (KRRI) 2006 www.krri.re.kr
  2. ^ a b c d e f g Korea develops high-speed ambitions: a thorough programme of research and development will soon deliver results for Korea's rail industry in the form of the indigenous KTX II high-speed train. Author: Kihwan Kim (Railroad Research Institute), International Railway Journal, 5/2008, via findarticles.com
  3. ^ "Hanvit" is korean for "streak of intense light"[2]
  4. ^ "Development of Korean High-speed Rolling Stock HSR 350x". Institut de l'information scientifique et technique (English: Institute of Scientific and Technical Information). http://cat.inist.fr/?aModele=afficheN&cpsidt=16119051. Retrieved 2009-03-17.  
  5. ^ Bullet Train Remakes Map of South Korea James Brooke, 2/4/2004, New York Times, www.nytimes.com
  6. ^ The name G7 is interpreted as a reference to Korea's desire to join the G7 group of nations[5]
  7. ^ a b c d e NEXT GENERATION OF KOREA TRAIN EXPRESS (KTX) : PROSPECT AND STRATEGIES Page 5, Section 5 "Korean high speed train and its prospect", Proceedings of the Eastern Asia Society for Transportation Studies, Vol. 5, pp. 255 - 262, 2005, Authors: Hisung Lee, Dae-Seop Moon, via www.easts.info
  8. ^ a b Technology transfer of large railway infrastructure projects - Case of High Speed Rail Author : Daniel S. Suh (Project Coordinator, Korea High Speed Rail Group for Brazil TAV), Banco Interamericano de Desarrollo idbdocs.iadb.org
  9. ^ a b c Post KTX Author: Nam-Hee Chae, Korea railroad research institute, (eurail speed 2005) www.uic.org
  10. ^ HSR-350x emerged first runner up at High speed train bid 22/12/2005 www.krri.re.kr
  11. ^ G7 train exceeds 340 km per hour 3/12/2004 info.korail.com
  12. ^ Speed Revolution of KTX Changes Korea Section:"Korea's G7 High-Speed Train Reaches 350km/h", 21/10/2005 info.korail.com
  13. ^ "KRRI: Korean High-speed train". Korean Railroad Research Institute. 2004-12-12.. http://www.krri.re.kr/krri/np/high/20060727/1_13328.html. Retrieved 2006-12-01.  
  14. ^ "Korea High Speed Rail streaks past 350km". Korean Railroad Research Institute. 2004-12-12. http://www.krri.re.kr/krri/news/20041221/1_3045.html. Retrieved 2006-12-01.  
  15. ^ "'We are making steady efforts to become a global leader'". Railway Gazette International. 2008-09-05. http://www.railwaygazette.com/news/single-view/view//we-are-making-steady-efforts-to-become-a-global-leader.html. Retrieved 2008-12-31.  
  16. ^ "코레일, 25일 현대로템 창원공장서 출고행사…각계 인사 500여명 참석" (in Korean). Korail News. 2008-11-25. http://news.korail.com/main/php/search_view.php?idx=9923. Retrieved 2008-12-31.  
  17. ^ 400km/h High-Speed Train to be Unveiled by 2012 21/9/2009 hispeedtrain.re.kr
  18. ^ "HSR-350x emerged first runner up at High speed train bid". Korean Railroad Research Institute. 2005-12-22. http://www.krri.re.kr/krri/news/2005/12/22/2169,25184,0,0,0.htm. Retrieved 2006-12-01.  

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