China Railways DJ1

Last updated
DJ1
DJ1-0003.jpg
DJ1-0003
Type and origin
Power typeElectric
Builder Siemens / Zhuzhou Electric Locomotive Works
Build date2001-2003 [1]
Total produced20
Specifications
Configuration:
​
 •  UIC 2(Bo'Bo')
Gauge 1,435 mm (4 ft 8+1⁄2 in) standard gauge
Wheel diameter1,250 mm (49.21 in) [2]
Wheelbase bogie axle distance
2,800 mm (9 ft 2+1⁄4 in) [2]
bogie centre distance
9.000 m (29 ft 6+3⁄8 in) [2]
Length35.232 m (115 ft 7+1⁄8 in)
Loco weight2×92 t
(91 long tons; 101 short tons)
2 × 100 tonnes
(98 long tons; 110 short tons)
Electric system/s 25 kV 50 Hz AC Catenary
Current pickup(s) Pantograph
Performance figures
Maximum speed120 km/h (75 mph)
Power output2 x 3,200 kW (4,300 hp) continuous (at wheel)
8,200 kW or 11,000 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
Operators China Railway
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.

Contents

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 2003. [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

References

  1. 1 2 3 4 5 "Siemens Traction Equipment Ltd., Zhuzhou" (PDF), cn.siemens.com (in English and Chinese), Siemens, pp. 5, pp.8–9, archived from the original (PDF) on 2013-09-21
  2. 1 2 3 Heavy Freight Double-Locomotive DJ1 for Chinese Railways (CR) www.siemens.cz[ dead link ]
  3. 1 2 3 4 "Electric locomotives : Reference List" (PDF), www.mobility.siemens.com, Siemens, Electric Double Locomotive DJ1 for China Railways CR, p.39, archived from the original (PDF) on 2012-07-22, retrieved 2012-06-29
  4. ↑ "First roll out for China locomotive contract", Asia Pacific Rail, 1 July 2001, archived from the original on 31 January 2016
  5. ↑ Sino-foreign joint production of heavy-duty electric locomotives off the assembly line, Xinhua, 8 July 2002, archived from the original on December 7, 2014
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