posted on 19th Mar 2020 21:27
On 17 March 2020 the new 25 kV 50 Hz Class 2ES5S and 3ES5S main line freight electric locomotives with asynchronous traction equipment and individual regulation of the traction motors, produced by NEVZ, received a certificate of conformity of the Eurasian Economic Union (EAEU) for a period of 5 years. The document confirms compliance with the requirements of the technical regulations of the Customs Union TR TS 001/2011 and gives the right to operate locomotives on the territory of the EAEU.
Both prototypes, designed by TMH together with a participation of Alstom (which is a TMH stakeholder), were built in 2018 and subsequently passed a complete test cycle, including bench tests of the bogie frame, assessment of the locomotive production and of the related technical documentation. In 2020, starting in July, it is planned to start delivery of the very first nine batch-built 2ES5S locomotives for RZD.
The Class 2ES5S integrates the mechanical components of a Class 2ES5K Yermak with modern asynchronous traction equipment to create a cheaper locomotive than the Class 2ES5 Skif. The traction equipment is developed new, is entirely of Russian origin, and is more advanced than that found on the Class 2ES5. The traction converters are supplied by Gorizont of Yekaterinburg and are not the same as those which were installed for test purposes on Yermak 3ES5K-879, finished in January 2018.
The traction transformers were supplied by Siemens of Russia. The traction motors were developed by the Novocherkassk-based VELNII electric locomotive construction institute and produced by NEVZ. The Class 2ES5S locomotives have a level of 85 % of Russian-built components and can haul a trailing load of up to 7,100 t.
The traction motors have a one-hour rating of 1,100 kW, are of a new design, evolved from those powering Class EP20 Olimp locomotives. Unlike on the latter, which have their traction motors suspended from the bogie frames, they are nose-suspended. A separate traction converter is provided for each bogie, containing two independent IGBT drives for the two traction motors.
2ES5S-001 is 35,068 mm long over couplings, has a design top speed of 120 km/h and weighs 200 t ± 4 t with its sandboxes two-thirds full. This gives an axle-load of 24.5 t ± 500 kg. Its half-hourly rating at a speed of 60 km/h and above is 10,400 kW. Its hourly rating is 8,800 kW and its continuous rating is 8,400 kW. Its starting tractive effort is 787 kN, falling to 610 kN (half-hourly) and a continuous 530 kN at 55 km/h. At 120 km/h tractive effort is 210 kN. The recuperative brake has a power of 8,400 kW. No resistance EDB is fitted.
By way of comparison, the Class 2ES5 Skif has a top speed of 120 km/h, a continuous output of 7,600 kW, a hourly power rating of 9,120 kW. Its starting tractive effort is 833 kN and its continuous tractive effort is 536 kN at 50 km/h.