China Railways SS7

SS7

SS7 electric locomotive
Type and origin
Power type Electric
Builder Datong Electric Locomotive Works
Model SS7
Build date 1992-2007
Total produced 113
Specifications
UIC classification Bo'Bo'Bo'
Gauge 1,435 mm (4 ft 8 12 in)
Wheelbase 17,080 mm (56 ft 0 in)
Length 22,016 mm (72 ft 2.8 in) (between coupler centers)
Width 3,105 mm (10 ft 2.2 in)
Height 4,700 mm (15 ft 5 in) ± 30 mm (1.2 in)
Axle load 23 t (22.6 long tons; 25.4 short tons)
Electric system(s) 25 kV AC Catenary
Current collection
method
Pantograph
Transmission AC - DC
Performance figures
Maximum speed 100 km/h (62 mph)
Power output 4,800 kW (6,400 hp)
Tractive effort 485 kN (109,000 lbf) (starting)
351 kN (79,000 lbf) (continuous)

The SS7 is a type of electric locomotive used on the People's Republic of China's national railway system. They are widely used on electrified lines in the southwest part of China.

Design

The design of SS7 was influenced by the 6K, an electric locomotive model imported from Japan.

Derivatives

Derivatives of SS7 include SS7B, SS7C, SS7D and SS7E.

References

    Wikimedia Commons has media related to China Railways SS7.