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KTX-I trainset 24 leaving Daejeon Station
Train information
ManufacturerAlstom (trainsets 01 12)
Rotem (trainsets 13 46)
Family nameTGV
Constructed1997-2000 (trainsets 01 12)
2002-2003 (trainsets 13 46)
Entered service2004
Number built46
Number in service46
  • PC: power car (traction head)
  • MT: motorized trailer (passenger car with one bogie powered)
  • IT: intermediate trailer (passenger car)
  • Capacity935+30
    • 127 First Class (2+1)
    • 808 Standard Class (2+2)
    • +30 folding seats
    Lines servedGyeongbu High Speed Railway
    Gyeongbu Line
    Honam Line
    Car body constructionsteel
    Train length388.104 m (1273.3 ft)
    Car lengthtraction heads:
    22607 mm (74169.9 ftin)
    powered passenger cars:
    21845 mm (71669.9 ftin)
    unpowered passenger cars:
    18700 mm (61351.7 ftin)
    Widthtraction heads:
    2814 mm (9232.3 ftin)
    passenger cars:
    2904 mm (9527.6 ftin)
    Heighttraction heads:
    4062 mm (13326.8 ftin)
    powered passenger cars:
    4100 mm (13451.4 ftin)
    unpowered passenger cars:
    3484 mm (11430.4 ftin)
    Doors1835 mm (6020.3 ftin) high
    700 mm (27.6 in) wide
    Maximum speedservice : 305 km/h (189.5 mph)
    (orig. 300 km/h (186.4 mph))
    design : 330 km/h (205.1 mph)
    Weight701 t (27.6 in) (empty)
    771 t (30.4 in) (max load)
    Accelerationfrom 0 to 300 km/h in 365 seconds and 30 km (18.6 mi)
    Deceleration1.04 m/s2 (0 ft/s2)
    from 300 to 0 km/h in 74 seconds and 3.3 km (2.1 mi)
    Traction system12 x SM47 three-phase self-commuting synchronous motors
    thyristor inverters
    Power output12 x 1130 kW (702.1 mi)
    total 13.56 MW (8.4 mi)
    Power supply(?)
    Electric systemcatenary 25 kV AC, 60 Hz
    Current collection methodpantograph
    (type: single-arm,
    Faiveley GPU-25K)
    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
    Braking system
    • regenerative, rheostatic
      (power system)
    • wheel tread
      (powered axles)
    • disc
      (unpowered axles)
    Safety systemTVM 430 (ATC), ATS)
    Coupling systemScharfenberg (emergency)
    Multiple working-

         Home | Train | KTX-I

    The KTX-I or simply KTX, also known as TGV-K, is a South Korean high speed train class based on the French TGV Réseau. The 20-car formation of the trainsets without 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.

    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 (189.5 mph).

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