«Malachite» (2ES8, 3ES8)
Freight mainline electric locomotive 3ES8 «Malachite» is designed for driving freight trains on railways of 1520 mm gauge.
This is the first Russian direct current freight electric locomotive with an asynchronous traction drive of domestic production.
Advantage
Safety
- Driver's cabin with enhanced passive safety properties
- Control of a connected train from one post
- Automatic parking brake
Reliability
- Providing an increased level of survivability and redundancy of traction properties
- The system for transmitting diagnostic information to the server
Energy efficiency
- Energy-efficient traction drive control algorithm
- Self-learning traction drive control system
Compactness
- The base of the locomotive body and bogies have been reduced
- Reduced weight and size parameters of power and auxiliary equipment
«Malachite» is the base platform for the new line of locomotives:
- AC freight electric locomotive 3ES11
- Cargo double-system electric locomotive 3ES12
Specifications
| Type of electric locomotive | 2ES8 | 3ES8 |
| Structural speed, km/h | 120 | 120 |
| Current collector voltage, kV | 3,0 | 3,0 |
| The axial formula |
2(2о - 2о) | 3(2о - 2о) |
| Service weight, with 2/3 sand reserves, t | 200 | 300 |
| Nominal static axial load, tc | 25 | 25 |
| The length of the locomotive along the axes of the couplings, m | 32 | 48 |
| Power on the shafts of traction motors in continuous operation, kW | 8000 | 12000 |
| Traction force when starting, kN | 734 | 1100 |
| Thrust force in continuous operation at an estimated speed of 50 km/h, kN | 564 | 846 |