China Railways HXD2

The HXD2 (Chinese: 和谐2型电力机车) is an electric locomotive and a series of related locomotive classes built by CNR Datong Electric Locomotive and Alstom. The locomotives designs are based on the Alstom Prima electric locomotives, and are a product of a cooperation agreement signed between the two companies in 2004. All locomotives are intended for heavy freight work, including coal trains on the Datong Qinhuangdao line (Daqin Railway).

HXD2
和谐2型电力机车
HXD2-0001
Type and origin
Power typeElectric
BuilderAlstom (initially)
CNR Datong Electric Locomotive / Yongji Xinshisu Electric Equipment
ABB traction transformers,
Total producedHXD2 : 180
HXD2.1 : 280
HXD2.6 : 40
HXD2.7 : 50
HXD2B : 500
HXD2C : 220
HXD2F : 2 (as of 2014)
Specifications
Configuration:
​
 • AAR
  • HXD2, HXD2F : 2(B-B)
  • HXD2B, HXD2C: C-C
 • UIC
Gauge1,435 mm (4 ft 8+1⁄2 in)
Minimum curve125 m (410 ft)
Wheelbasebogies :
HXD2 : 2.600 m (8 ft 6.4 in)
HXD2B, HXD2C : 2.250 m (7 ft 4.6 in) + 2.000 m (6 ft 6.7 in)
Lengthcoupler distance :
HXD2 : 2x19.025 m (62 ft 5.0 in)
HXD2B, HXD2C : 22.960 m (75 ft 3.9 in)
Width2.850 m (9 ft 4.2 in)
Loco weightHXD2: 2x92 t (91 long tons; 101 short tons) (200 t or 200 long tons or 220 short tons*)
HXD2B: 150 t (150 long tons; 170 short tons)
HXD2C: 138 t (136 long tons; 152 short tons) (150 t or 150 long tons or 170 short tons*)
HXD2F : 216 t (213 long tons; 238 short tons) (240 tonnes*)
Electric system/s25 kV 50 Hz AC Catenary
Current pickup(s)Pantograph
Loco brakePneumatic dynamic
Train brakesPneumatic
Performance figures
Maximum speed120 km/h (75 mph) (operation)
Power outputHXD2 : 10 MW (13,000 hp)
HXD2B : 9.6 MW (12,900 hp)
HXD2C : 7.2 MW (9,700 hp)
HXD2F : 9.6 MW (12,900 hp)
Tractive effortstarting :
HXD2: 760 kN (170,000 lbf)*, 700 kN (160,000 lbf)
HXD2B:584 kN (131,000 lbf)
HXD2C: 570 kN (130,000 lbf)*, 520 kN (120,000 lbf)
continuous:
HXD2B:554 or 514 kN (125,000 or 116,000 lbf) @65 or 70 km/h (40 or 43 mph) (25 or 23t axleoad)
HXD2B:455 kN (102,000 lbf) @76 km/h (47 mph)
HXD2C : 400 or 370 kN (90,000 or 83,000 lbf) @ 65 or 70 km/h (40 or 43 mph) (25 or 23 t or 25 or 23 long tons or 28 or 25 short tons axleload)
Brakeforceregenerative :
HXD2 : 10MW max 473 kN (106,000 lbf) max.
HXD2B : 9.6 MW (12,900 hp) max 400 kN (90,000 lbf) max
HXD2C : 7.2 MW (9,700 hp) max approximately 400 kN (90,000 lbf) max*.
  • When fully ballasted
    Sources: (except where noted)
    HXD2
    HXD2B
    HXD2C
    HXD2F

The original HXD2 locomotives are twin unit Bo′Bo′+Bo′Bo′ vehicles whereas the HXD2B and HXD2C versions are single unit Co′Co′ machines. At the time of their construction the HXD2 and HXD2B locomotives were amongst the most powerful locomotives in the world. The HXD2C is similarly specified to the HXD2B but of reduced power, and with increased localisation of components for lower cost.

The HXD2 was originally described as the DJ4-6000 class.

Variants of the type were produced for railways other than China Railway: in 2010 Belarus state railways ordered a HXD2 twin unit locomotive variant (BCG-1); and in 2012 Shenhua Group also ordered twin section locomotives.

In 2012 CNR Datong announced a new sub-version of the HXD2 class, built using fully localised production; the HXD2-1000 series. In 2014 a new localised variant, in 2(Bo′Bo′) wheel arrangement and 9.6MW power, with axle load of 27tonnes (up to 30 tonnes on specialised line) was unveiled, designated HXD2F, and officially nicknamed 超级大力士.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.