China Railway DJF2
| DJF2 "Xianfeng" | |
|---|---|
The DJF2 while stored at CSR Nanjing Puzhen | |
| Manufacturer | CSR Nanjing Puzhen |
| Built at | Nanjing, China |
| Number built | 1 set (4M, 2T) |
| Number in service | 0 |
| Predecessor | DJF1 "Zhongyuan Star" |
| Successor | DJF3 "Mount Changbai" (in numbering series) CRH1 (in actual service) |
| Formation | Mc-Tp-M-M-Tp-Mc |
| Fleet numbers | see table |
| Capacity | 424 |
| Operators | China Railway Guangzhou Group China Railway Chengdu Group |
| Specifications | |
| Car body construction | welded steel, monocoque body |
| Train length | 158.4 m (519 ft 8 in) |
| Car length | 27 m (88 ft 7 in) (control cars) 25 m (82 ft 0 in) (other cars) |
| Width | 3.1 m (10 ft 2 in) |
| Height | 4 m (13 ft 1 in) |
| Doors | 1 (driver cars)/ 2 (other cars) plug doors |
| Wheel diameter | 915 mm (36.0 in) (new) 860 mm (34 in) (worn) |
| Maximum speed | 160 km/h (99 mph) (service) 250 km/h (155 mph) (design) 292.8 km/h (181.9 mph) (tests) |
| Weight | each car ≤58 t (57 long tons; 64 short tons) |
| Axle load | 15 tons |
| Traction system | Mitsubishi Electric MAP-304-A25V85 IGBT–C/I |
| Traction motors | 16 × CRRC Zhuzhou Electric OEM JD106 300 kW (402 hp) 3-phase AC induction motor |
| Power output | 4,800 kW (6,437 hp) |
| Transmission | AC–DC–AC |
| Acceleration | 0.41 m/s2 (0.92 mph/s) (starting) |
| HVAC | air conditioning, electric heating |
| Electric system | 25 kV 50 Hz AC overhead line |
| Current collection | Pantograph |
| UIC classification | Bo′Bo′+2′2′+Bo′Bo′+Bo′Bo′+2′2′+Bo′Bo′ |
| Bogies | PW-250M, PW-250T |
| Braking systems | regenerative braking, air brake, electro-pneumatic brake |
| Coupling system | Tightlock coupler, size 15 |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
The DJF2 "Xianfeng" electric multiple unit is a model operated formerly by China Railway with traction motors distributed throughout the unit. It was developed in 2001 as a key task of the science and technology targets of the Ninth Five-Year Plan. It was an innovative and advanced design being the first Chinese multiple unit train to achieve 200 km/h (124 mph) and achieving a top test speed of 292.8 km/h (181.9 mph) in tests, but had numerous flaws in the design that complicated operations.