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NPO Elektromashina is building up the portfolio of rail traction solutions

9 December 2021
Reading time ~ 2 min
EDBT1 asynchronous traction motor
EDBT1 asynchronous traction motor. Source: NPO Elektromashina
Belov Sergey, Editor-in-Chief, ROLLINGSTOCK Agency
Reading time ~ 2 min
Litvintsova Olga, Editor of International Projects, ROLLINGSTOCK Agency

Russia: The company, which is a part of Uralvagonzavod, has produced motors for the PK Transport Systems (PK TS) trams, and has also finished pre-series contactors for electric locomotives. All products have entered the market this year.

In early November, NPO Elektromashina announced that the pilot batch of 6 TAED72 asynchronous traction motors for PK TS trams was ready. Motors are installed on one 71-931M “Vityaz-M” tram, which will undergo operational trials in Moscow for 9 months, after that a decision will be made on the TAED72 serial production.

The TAED72 motor is declared to have an output of 72 kW and be the second generation of NPO Elektromashina’s LRV motors. The first, EDBT1 motor, was introduced at the beginning of 2021 and is already being installed on 71-415R retro-style trams supplied to Nizhny Novgorod. EDBT1 has a lower output of 62 kW. As noted in NPO Elektromashina, the unification between the two motors is 50-60%.

Also, recently the company has manufactured a pre-series batch of electromagnetic contactors KEMV-3.0, which have been certified in June this year. The components are planned to be shipped for testing on Russian Railways locomotives in the 1st quarter of 2022, in particular on 2ES6 “Sinara” locomotives, which are produced by Ural Locomotives (a member entity of Sinara – Transport Machines). The expected mileage during the tests is 90,000 km. According to NPO Elektromashina, there are 85 switching devices per 2ES6 section.

General view of the electromagnetic contactor by NPO Elektromashina.Source: Abstract to the patent No 208 138

In early December, NPO Elektromashina received a patent for a utility model of electromagnetic contactors. The abstract to the patent indicates that the product provides reduced disjunction time and lower heat generation during arcquenching, and so it will be faster, more wear-resistant and reliable compared to contactors patented by Schaltbau in Russia in 2011 and 2016.