The Bryansk Engineering Plant (BMZ), part of Transmashholding, completed the works on building the prototype of the first Russian three-section mainline diesel locomotive 3TE25K2M. A two-section version of it was created at the same time.
The 3TE25K2M diesel locomotive has been designed especially for operations on the Baikal-Amur Mainline, where it will ensure the continuous circulation of heavyweight trains of up to 7.100 tons along the 2,800 km route Taksimo – Tynda – Novy Urgal – Komsomolsk – Sovetskaya Gavan.
The locomotive maintenance and servicing scheme (periodicity) was adapted to the operation field. Units requiring minimum maintenance in operation, particularly the wheel-motor block equipped with rolling bearings and microprocessor block-based control system were used. The AC electric motors were implemented for the locomotive auxiliary systems and the screw compressor unit.
The diesel motor power of one section amounts to 3.100 kW. Both electric transmission and underframe (body and bogies) are based on the proven design and manufacturing technology from the previous models of locomotives. The locomotive design also includes completely up-to-date and more reliable safety systems, CCTV, parameters registration and control systems, as well as the microprocessor-based control system.
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