China Railways DJ1
| DJ1 | |
|---|---|
 DJ1-0003 | |
| Specifications | |
| Power type | Electric |
| Builder | Siemens / Zhuzhou Electric Locomotive Works |
| Build date | 1999-2003[1] |
| Total produced | 20 |
| UIC classification | 2(Bo'Bo') |
| Gauge | 1,435 mm (4 ft 8 1⁄2 in) |
| Wheel diameter | 1,250 mm (49.21 in)[2] |
| Wheelbase |
bogie axle distance 2,800 mm (110.24 in)[2] bogie centre distance 9.000 m (29 ft 6.3 in)[2] |
| Length | 35.232 m (115 ft 7.1 in)[2] |
| Width | 3,300 mm (129.92 in)[2] |
| Locomotive weight | 2x92 t (91 long tons; 101 short tons) (2 × 100 t or 98 long tons; 110 short tons*) |
| Electric system(s) | 25 kV 50 Hz AC Catenary |
| Current collection method | Pantograph |
| Top speed | 120 km/h (75 mph) |
| Power output |
2 x 3.2 MW (4,300 hp) continuous (at wheel) 8,100 MW or 10,900,000 hp peak, 10min.[1] |
| Tractive effort |
starting 700 kN (160,000 lbf), *760 kN (170,000 lbf) 461 kN (104,000 lbf) @ 50 km/h (14 m/s)[1] |
| Career | |
| Railroad(s) | China Railways |
|
Sources :[3] except where noted * Ballasted to 100t to improve traction | |
The China Railways DJ1 is a high power mainline electric freight locomotive built as a double locomotive unit of two nominally independent single cab units.
History and design
The locomotives are based on a technology transfer agreement between Siemens and Zhuzou Electric locomotive works (ZELW). The first three locomotives were built by Siemens in Austria, and the remaining 17 were built in China.[3]
The electrical components in the locomotive are based upon Siemens' EuroSprinter design (second generation using water-cooled GTO inverters).[3] The traction motors are asynchronous AC type, and are nose suspended on the axle, regenerative electric braking is possible with a braking force of approximately 460 kN (100,000 lbf), and an electric braking power of 6.4 MW (8,600 hp), overall efficiency of the machine is more than 85%.[1]
3 of the units were manufactured by Siemens in Austria, the remaining 17 in China; the first locomotive was produced in 2001.[4] The first china manufactured unit was produced in 2002.[5] Production of the locomotive ended in 2004.[1]
The locomotives were used to haul coal trains on the Daqin line.[3]
As more powerful locomotive models HXD1 and HXD2 entered Daqin line since 2006, the 20 DJ1s were allocated to Xi'an Railway Bureau to haul freight trains running between Baoji and Qinling.[citation needed]
See also
- List of locomotives in China
- China Railways HXD1 successor locomotive
References
- ↑ 1.0 1.1 1.2 1.3 1.4 "Siemens Traction Equipment Ltd., Zhuzhou", cn.siemens.com (in English/Chinese) (Siemens): 5, pp.8–9
- ↑ 2.0 2.1 2.2 2.3 2.4 Heavy Freight Double-Locomotive DJ1 for Chinese Railways (CR) www.siemens.cz
- ↑ 3.0 3.1 3.2 3.3 "Electric locomotives : Reference List", www.mobility.siemens.com (Siemens), Electric Double Locomotive DJ1 for China Railways CR, p.39
- ↑ "First roll out for China locomotive contract", Asia Pacific Rail, 1 July 2001
- ↑ Sino-foreign joint production of heavy-duty electric locomotives off the assembly line, Xinhua, 8 July 2002
External links
- "交流传动电力机车 [DJ1 AC drive electric locomotives]", www.gofront.com (Zhuzhou Electric Locomotive Works), archived from DJ1 the original on 6 January 2009
- Image: Two DJ1 units, coal train via www.railpictures.net
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