Russian Railways series 3ТЭ25К (3TE25K)
To modernize its ageing fleet of heavy freight diesel locomotives, the RŽD ordered the 2ТЭ25К and 3ТЭ25К starting in 2005. Most of the production was the two-section variant 2ТЭ25К. Only a smaller number was built of the three-section 3ТЭ25К with a total length of 60 metres and a service weight of 441 tonnes. They got the nickname “Peresvet”.
Between 2017 and 2023, the first batch of 139 3ТЭ25К2М was built with GEVO-12 engines imported from General Electric in the USA which deliver 4,215 hp. Only a single two-section 2ТЭ25К2М was built with the same engines. Production with these engines was stopped due to the sanctions. Another prototype built in 2019 was the 2TE25K3M with a more modern Kolomna engine that was accompanied by a single 3TE25K3M. Now, the 2ТЭ28 and 3ТЭ28 are to be their successors.
Technical data
General
| Property | 3ТЭ25К2М | 3ТЭ25К3М |
|---|---|---|
| Built | 2017-2023 | 2019 |
| Manufacturers | Bryansk | |
| Wheel arrangement | C-C+C-C+C-C | |
| Gauge | 1,520 mm (Russian broad gauge) | |
Dimensions and weights
| Property | 3ТЭ25К2М | 3ТЭ25К3М |
|---|---|---|
| Length | 60.00 m | |
| Wheelbase | 15.50 m | |
| Service mass | 441 t | |
| Adhesion mass | 441 t | |
| Rigid wheelbase | 3.80 m | |
| Axle load | 24.5 t | |
Power plant
| Property | 3ТЭ25К2М | 3ТЭ25К3М |
|---|---|---|
| Engine | General Electric GEVO-12 | Kolomna 5D49-16TshN26 |
| Engine type | 3x V12 diesel | 3x V16 diesel |
Power
| Property | 3ТЭ25К2М | 3ТЭ25К3М |
|---|---|---|
| Power source | diesel-electric | |
| Indicated power | 9,300 kW (12,644 PS) | 8,550 kW (11,625 PS) |
| Top speed | 100 km/h | |
| Starting effort | 1,258.0 kN | 1,284.0 kN |
Calculated values
| Property | 3ТЭ25К2М | 3ТЭ25К3М |
|---|---|---|
| Factor of adhesion | 1 : 3.44 | 1 : 3.37 |
| Power-to-weight ratio | 21.1 kW/t | 19.4 kW/t |
| Adhesive weight/Total | 1 : 1.00 | |
