China Railways SS7
From Wikipedia, the free encyclopedia
 SS7 electric locomotive |
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| Power type | Electric |
|---|---|
| Builder | Datong Electric Locomotive |
| Model | SS7 |
| Build date | 1992-2007 |
| Total production | 113+ |
| UIC classification | Bo'Bo'Bo' |
| Gauge | 1,435 mm |
| Wheelbase | 17,080 mm |
| Length | 22,016 mm (between coupler centers) |
| Width | 3,105 mm |
| Height | 4,700 ± 30 mm |
| Axle load | 23 t |
| Electric system(s) | 25 kV AC |
| Transmission | AC - DC |
| Top speed | 100 km/h |
| Power output | 4,800 kW |
| Tractive effort | 485 kN (starting) 351 kN (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.
The design of SS7 was influenced by the 6K, an electric locomotive model imported from Japan.
Derivatives of SS7 include SS7B, SS7C, SS7D and SS7E.
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