EP10

ЭП10 EP10
EP10-007 at the front of a passenger train in 2010
Type and origin Power type Electric Builder NEVZ, Adtranz/Bombardier Transportation Build date 1998*, 2005–2006 Total produced 12
Specifications Configuration: ​  • UIC Bo-Bo-Bo Gauge 1,520 mm (4 ft 11 27⁄32 in) Russian gauge Wheelbase 6.765 m (22 ft 2 3⁄8 in) (bogie centre distance) 2.850 m (9 ft 4 1⁄4 in) (bogie axle distance, ends) Length 22.532 m (73 ft 11 1⁄8 in) (over couplers) Width 3.100 m (10 ft 2 in) Loco weight 135 t (133 long tons; 149 short tons) Electric system/s 3 kV DC/25 kV 50 Hz AC Catenary Current pickup(s) Pantograph Traction motors SТА-1200 Head end power >1,200 kW (1,600 hp)
Performance figures Maximum speed 160 km/h (99 mph) Power output 7,000 kW (9,400 hp) (continuous) 7,200 kW (9,700 hp) (hourly) Tractive effort 375 kN (84,000 lbf) (starting) 300 kN (67,000 lbf) @ 80 km/h (22 m/s)
Career Operators RŽD
Sources: except where noted ; * refers to prototype

The EP10 (ЭП10) is a type of dual voltage six axle electric locomotive built for Russian railways RŽD by NEVZ in association with Adtranz/Bombardier for passenger use. The design was considered costly, and only 12 units were acquired.

Prior to the collapse of the Eastern Bloc and the breakup of the Soviet Union, passenger locomotives used in Russia had been sourced from Czechoslovakia. Afterwards these sources were considered too expensive and the Russian state sought to develop indigenous production of passenger rolling stock.

Resolution number 1400 (23 November 1996) of the Russian Federation "Разработка и производство пассажирского подвижного состава нового поколения на предприятиях России" (design and manufacture of new generation passenger rolling stock) allocated funding from the state to develop and manufacture passenger rail vehicles, including the development of a type ЭП10, specified as a six axle, dual voltage locomotive, of 6.6MW power with asynchronous traction motors and regenerative and rheostatic braking, and an operating speed of 120 to 160 km/h. The machine was to be designed by АООТ "ВЭлНИИ" (VELNII) and АООТ НПО "НЭВЗ" (NEVZ), in association with a foreign company, and manufactured by VELNII with an expected schedule of prototype delivery in 1997 and series production in 1999.

The prototype was unveiled at Novocherkassk Electric Locomotive Plant (NEVZ) on 20 November 1998.

Initially it was expected that DC and AC only versions ЭП2 (EP2) and ЭП3 (EP3) would be developed based on the asynchronous traction technology introduced in the EP10.

Certification testing was complete in February 2005. An order for 11 locomotives was placed in 2005 with Transmashholding and Bombardier Transportation; locomotives No.2 & 3 began production in 2005. The order was valued at 450 million rubles; RZD initially refused to place an order for the type, citing the high unit price.