China Railways HXD3B

China Railways HXD3B
Power type	Electric
Designer	Bombardier Transportation, CNR Dalian Locomotives
Builder	CNR Dalian Locomotives, Bombardier Transportation
Build date	2008–2011
Total produced	500
UIC classification	Co'Co'[1]
Gauge	1,435 mm (4 ft 8 1⁄2 in) Standard gauge
Wheel diameter	new: 1,250 mm (49.2 in)[1] worn: 1,150 mm (45.3 in)[1]
Minimum curve	300 m (984 ft)[1]
Wheelbase	in bogie: 2x1,950 mm (76.8 in)[1]
Length	22,781 mm (74 ft 8.9 in)[1]
Width	2,950 mm (116.1 in)[1]
Height	4,250 mm (167.3 in)[1]
Axle load	25 t (27.6 short tons)[1]
Locomotive weight	150 t (165 short tons)[1]
Electric system	25 kV/50 Hz AC[1]
Traction motors	Bombardier MITRAC DR 3800[citation needed] (1,600 kW (2,150 hp))
Top speed	120 km/h (75 mph)[1]
Power output	9,600 kW (12,870 hp)[1]
Tractive effort	570 kN (128,000 lbf)[1] starting 506 kN (114,000 lbf) continuous up to 68.2 km/h (42.4 mph)[1]
Locomotive brakes	regenerative, wheel disc
Locomotive brakeforce	regenerative: 480 kN (108,000 lbf)
Career	China Railways
Class	HXD3B
Number	HXD3B0001-HXD3B0500
Locale	People's Republic of China

HXD3B is a class of electric locomotives for heavy freight service built by Bombardier Transportation and CNR Dalian Locomotives.

History

The Ministry of Railways of the People's Republic of China (MOR) ordered 500 locomotives in February 2007 for €1.1 billion (US$1.4 billion) from Dalian Locomotives and Bombardier Transportation, with Bombardier's share amounting to €370 million (US$480 million).^[2] The first unit, HXD3B0001 was delivered on 29 December 2008 in Dalian, the entire order of 500 machines will be delivered by the end of 2011.^[3]

Technical details

The HXD3B is based on the Bombardier-produced MTAB Iore twin-section locomotives,^[3] but is a single-section locomotive with cabs at both ends.^[4] The electronics were updated, with traction converters based on IGBT technology, and an updated version of the MITRAC control electronics developed by Bombardier's Switzerland branch.^[3] With increased power and a maximum speed of 120 km/h (75 mph), the locomotives were designed for general freight rather than specialised heavy-haul service.^[4] Most of the Artic weather modifications of the Iore, including thick walls, were left away, but the air filters in the ventilation outlets designed against snow and iron ore dust entering the motors were retained to protect against coal dust.^[4]

The electronics and traction equipment of the first 150 units were supplied by Bombardier from Europe,^[3] production for the rest is shared between Bombardier's Chinese subsidiary and Dalian.^[2][4] The design of the mechanical components was subject to technology transfer from Bombardier to Dalian.^[4]

References

1. ^ ^{a b c d e f g h i j k l m n o} "HXD3B型大功率交流传动电力机车" (in Chinese). CNR. http://www.bombardier.com/en/transportation/media-centre/press-releases/details?docID=0901260d8000f58f. Retrieved 27 January 2011. 
2. ^ ^{a b} "Bombardier Signs a Contract with Dalian for the Supply of 500 Freight Electric Locomotives to China". Bombardier. 12 February 2007. http://www.bombardier.com/en/transportation/media-centre/press-releases/details?docID=0901260d8000f58f. Retrieved 27 January 2011. 
3. ^ ^{a b c d} "China: Erste Bombardier-Lokomotive ausgeliefert" (in German). Eurailpress. 7 January 2009. http://www.eurailpress.de/article/view/27/china_erste_bombardier_lokomotive_ausgeliefert.html. Retrieved 11 January 2011. 
4. ^ ^{a b c d e} "Powerful freight locos take shape at Dalian". Railway Gazette International. August 2007. http://www.railwaygazette.com/nc/news/single-view/view/powerful-freight-locos-take-shape-at-dalian.html. Retrieved 28 January 2011.