KTX-Sancheon

KTX-Sancheon
KTX-Sancheon
	KTX-Sancheon class 110000
	SRT class 120000
Manufacturer	Hyundai Rotem
Designer	MBD Design
Family name	KTX
Constructed	2008–2017
Entered service	2 March 2010
Number built	710 vehicles (71 sets)
Number in service	700 vehicles (70 sets)
Number retired	10 vehicles (1 set; set 408)
Formation	10 cars per trainset; (PC+8T+PC); PC: power car (traction head); T: trailer (passenger car);
Fleet numbers	101–124 (Class 110000); 201–222 (Class 120000); 301–310 (Class 130000); 401–415 (Class 140000);
Capacity	379 seated (Class 110000); 30 First Class (2+1); 349 Standard Class (2+2); 410 seated (Classes 120000, 130000, 140000); 33 First Class (2+1); 377 Standard Class (2+2);
Operators	Korail; (Classes 110000, 140000); SR Corporation; (Classes 120000, 130000);
Depots	Goyang, Osong
Lines served	Gyeongbu HSR; Honam HSR; Suseo-Pyeongtaek HSR; Gyeongbu Line; Honam Line; Gyeongjeon Line; Jeolla Line; Donghae Line; AREX (until 2018); Gyeonggang Line (Gangneung Line) (until 2021);
Specifications
Car body construction	Traction heads: Steel; Passenger cars: Aluminium;
Train length	201 m (659 ft 5 in)
Car length	Traction heads:; 22.7 m (74 ft 5.7 in); End passenger cars:; 21.8 m (71 ft 6.3 in); Intermediate passenger cars:; 18.7 m (61 ft 4.2 in);
Width	Traction heads:; 2.814 m (9 ft 2.8 in); Passenger cars:; 2.97 m (9 ft 8.9 in);
Height	Traction heads:; 4.062 m (13 ft 3.9 in); End passenger cars:; 4.092 m (13 ft 5.1 in); Intermediate passenger cars:; 3.75 m (12 ft 3.6 in);
Floor height	1,125 mm (44.3 in)
Maximum speed	Service:; 305 km/h (190 mph); Design:; 330 km/h (210 mph);
Weight	Empty:; 403 t (397 long tons; 444 short tons) (Class 110000);; 406 t (400 long tons; 448 short tons) (Classes 120000, 130000, 140000); Loaded:; 434 t (427 long tons; 478 short tons) (Class 110000); 441 t (434 long tons; 486 short tons) (Classes 120000, 130000, 140000);
Axle load	max. 17 t (17 long tons; 19 short tons)
Traction system	8 three-phase asynchronous induction motors; 4 IGBT-based VVVF inverters
Power output	8 x 1,100 kW (1,500 hp) (8.8 MW or 11,800 hp)
Tractive effort	210 kN (47,000 lbf)
Acceleration	0.45 m/s2 (1.6 km/(h⋅s)) up to 60 km/h (37 mph); from 0 to 300 km/h (0 to 186 mph) in 316 s and 16.4 km (10.2 mi);
Deceleration	1.06 m/s2 (3.8 km/(h⋅s)) (+5% -0% tolerance); from 300 to 0 km/h (186 to 0 mph) in 3.3 km (2.1 mi);
Auxiliaries	2 x 1.0 MW (1,341 hp), supplying 670 V DC; IGBT-based
Power supply	catenary
Electric system(s)	25 kV/60 Hz AC
Current collector(s)	pantograph; (type: single-arm, SSS400+)
UIC classification	Bo'Bo' + 2'(2)(2)(2)(2)(2)(2)(2)2' + Bo'Bo'
Braking system(s)	Electronically controlled pneumatic brakes (Regenerative, rheostatic, disc, pneumatic)
Safety system(s)	ATS, ATP (Ansaldo), TVM-430
Coupling system	Scharfenberg
Multiple working	Up to two trainsets
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge

The KTX-Sancheon (Korean: KTX-산천; Hanja: KTX-山川, formerly called the KTX-II) is a South Korean high-speed train built by Hyundai Rotem and operated by Korail and SR Corporation. With the maximum operational speed of 305 km/h (189.5 mph), the KTX-Sancheon is the second commercial high-speed train operated in South Korea, as well as the country's first domestically developed high-speed train in commercial service.

The KTX-Sancheon can be divided into four classes: Classes 110000 and 140000 which are owned and operated by Korail, Class 120000 which is owned by Korail but leased to SR Corporation for operation, and Class 130000 which is owned and operated by SR Corporation.