The DES-S7D electric locomotive is designed to haul accelerated passenger train. With better dynamic performance on the maximum speed of 170 km/h and three Bo bogies, it running well in the mountain area.
The main circuit is three-stage asymmetric phase controlled bridge. Micro-computer is used for the control of locomotive. The bogie equipped six-rod hollow shaft and frame suspension traction motor.
The locomotive features high performance in tractive and braking power, stable starting-up, quick acceleration, reliable operation, good working condition in driver¡¯s cab, less air pollution and easy maintenance.
Line voltage |
25kV, 50Hz |
Wheel arrangement |
Bo-Bo-Bo |
Axle load |
21 t |
Rated power |
4,800 kW |
Continues tractive effort |
171 kN |
Starting tractive effort |
245 kN |
Design speed |
170 km/h |
Min. curve negotiation radius |
125 m |
Length over coupler centers |
22,016 mm |