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KTX-I

KTX-I (한국고속철도)
KTX-I trainset 24 leaving Daejeon Station
Refurbished standard class interior
Manufacturer
Family nameTGV[1]
Constructed
  • 1997–2000 (trainsets 01–12)[2]
  • 2002–2003 (trainsets 13–46)[3]
Entered service2004
Number built46
Number in service46
FormationPC+MT+16IT+MT+PC[2]
  • PC: power car (traction head)
  • MT: motorized trailer (passenger car with one bogie powered)
  • IT: intermediate trailer (passenger car)
Fleet numbers001-046
Capacity935+30[2]
  • 127 First Class (2+1)
  • 808 Standard Class (2+2)
  • +30 folding seats
OperatorsKorail
DepotsGoyang
Lines served
Specifications
Car body constructionSteel[2]
Train length388.1 m (1,273 ft 3+1⁄2 in)[4]
Car length
  • Traction heads:
  • 22.607 m (74 ft 2+1⁄16 in)[4]
  • Powered passenger cars:
  • 21.845 m (71 ft 8+1⁄16 in)[5]
  • Unpowered passenger cars:
  • 18.7 m (61 ft 4+1⁄4 in)[5]
Width
  • Traction heads:
  • 2.814 m (9 ft 2+13⁄16 in)[4]
  • Passenger cars:
  • 2.904 m (9 ft 6+5⁄16 in)[6]
Height
  • Traction heads:
  • 4.062 m (13 ft 3+15⁄16 in)[5]
  • Powered passenger cars:
  • 4.1 m (13 ft 5+7⁄16 in)[5]
  • Unpowered passenger cars:
  • 3.484 m (11 ft 5+3⁄16 in)[5]
Doors
  • Height: 1,835 mm (6 ft 1⁄4 in)
  • Width: 700 mm (27+9⁄16 in)[7]
Maximum speed
  • Service:
  • 305 km/h (190 mph)[8]
  • (orig. 300 km/h (186 mph))
  • Design:
  • 330 km/h (210 mph)[6][4]
Weight
Axle load17 t (17 long tons; 19 short tons)[6]
Traction system12 x SM47 three-phase self-commuting synchronous motors
thyristor inverters[2]
Power output12 x 1,130 kW (1,520 hp)
total 13.56 MW (18,180 hp)[2]
Tractive effort385 kN (87,000 lbf)[6]
Acceleration
  • 0.47 m/s2 (1.7 km/(h⋅s)) up to 60 km/h (37 mph)[6]
  • from 0 to 300 km/h (0 to 186 mph) in 365 seconds and 20 km (12 mi)[9]
Deceleration1.04 m/s2 (3.4 ft/s2)[5]
from 300 to 0 km/h (186 to 0 mph) in 74 seconds and 3.3 km (2.1 mi)[9][4]
AuxiliariesGTO[5]
Electric system(s)catenary[2] 25 kV AC, 60 Hz
Current collector(s)pantograph
(type: single-arm,
Faiveley GPU-25K)[10]
UIC classificationBo'Bo' + Bo'(2)(2)(2)(2)(2)(2)(2)(2)(2)(2)(2)(2)(2)(2)(2)(2)(2)Bo' + Bo'Bo'
BogiesJacobs bogies between intermediate cars[2]
Braking system(s)
Safety system(s)ATS, ATP (Bombardier), TVM-430
Coupling systemScharfenberg (emergency)[12]
Track gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge[2]

The KTX-I, also known as the TGV-K or Korail Class 100000, is a South Korean high speed train class based on the French TGV Réseau. The 20-car formation of the trainsets without a restaurant car is optimized for high capacity. The 46 trainsets were built partly in France and partly in South Korea in the framework of a technology transfer agreement, which was the basis for further domestic high-speed train development in South Korea.

Korail uses the name of KTX as the official name of KTX-I.[13] The name of KTX-I is derived to distinguish KTX-Sancheon, which was formerly called as KTX-II, but it is not the official name for this rolling stock.

The high-speed rail service of South Korea's national rail carrier Korail, Korea Train Express (KTX), started with the KTX-I. The operational reliability of the trains was improved over time with better maintenance and minor modifications. As of 2011, the KTX-I remains Korail's main workhorse in KTX service with a maximum scheduled speed of 305 km/h (190 mph).

  1. ^ Cite error: The named reference sn was invoked but never defined (see the help page).
  2. ^ a b c d e f g h i j k l Cite error: The named reference al1 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference al-ms was invoked but never defined (see the help page).
  4. ^ a b c d e "홍보센터 > 기차소개 > 고속열차 > KTX - 한국철도공사". Korail (in Korean). Archived from the original on 14 January 2025. Retrieved 14 January 2025.
  5. ^ a b c d e f g "국내•외 고속철도차량 현황" (PDF). Woosong University. Archived from the original (PDF) on 2011-07-22. Retrieved 2010-11-23.
  6. ^ a b c d e "2016/17 Policy Consultation III: Implementation Plan for Construction of High-Speed Railway Infrastructure in Myanmar" (PDF). Archived from the original (PDF) on 14 January 2025. Retrieved 14 January 2025.
  7. ^ Cite error: The named reference krri_data2 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference jai-305 was invoked but never defined (see the help page).
  9. ^ a b "차량 발달사: 열차 편성". Korea Railroad Research Institute. Archived from the original on 2012-03-14. Retrieved 2010-11-22.
  10. ^ "G7 판도그라프의 요구사양 및 시작품의 성능". Korean Rail Technology (in Korean) (29). May–June 2001. Retrieved 2010-11-19.[dead link‍]
  11. ^ a b "차량 발달사: 차량 제원: 일반제원". Korea Railroad Research Institute. Archived from the original on 2011-07-22. Retrieved 2010-11-22.
  12. ^ "20 Front-End Modules for 10 Trains – More to Come". railway-technology.com. 2007-08-03. Archived from the original on 2007-08-19. Retrieved 2010-11-19.
  13. ^ "빠른 고속철도".
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