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Hasegawa S.,Rolling Stock Technology Center
Japanese Railway Engineering

East Japan Railway Company (JR East) has 62 electric locomotives for operating sleeping-car trains, freight trains, business trains and extra passenger trains. Since all of these electric locomotives came from the former Japanese National Railways, the deterioration of those locomotives due to their age, now more than 30 years, has increased as the years progress. In addition, a train pulled by a single locomotive does not have the reliability from redundancy that electric trains with two or more power cars have. As failure of an electric locomotive brings so much trouble to a number of passengers, it has been a matter of great urgency for JR East to improve the reliability of the trains pulled by these locomotives. The decision this time was to manufacture a new type electric locomotive to replace the Type EF81 AC/DC electric locomotives because the Type EF81, with an average age of 34 years, have been deteriorating gradually even though they are the primary locomotives for the star sleeping-car trains, "Cassiopeia" (Photo. 1) and "Hokutosei" (Photo. 2). Source

Takiguchi H.,Rolling Stock Technology Center
Japanese Railway Engineering

East Japan Railway Company (JR East) developed a catenary and battery-powered hybrid railcar system between 2008 and 2012 with the aim of reducing the environmental burdens of railway transport. As we proceeded to actually building a train, the results of the development work were applied and reflected in the manufacture of the train for commercial use called the EV-E301 Series. The EV-E301 Series carries large-capacity storage batteries to support its movement and enable running in non-electrified sections. This paper gives an overview of the train. Source

Endo T.,Rolling Stock Technology Center | Shiraishi H.,Rolling Stock Technology Center
Japanese Railway Engineering

JR East produced the Series E5 train with the maximum speed of 320km/h for the Tohoku Shinkansen, into which Gran Class to be a new higher in rank was introduced. Then, JR East developed the Series E6 Prototype because it was required to produce the train having a capability able to run on both Shinkansen and conventional lines. We report in this paper the outline of Gran Class accommodation of the Series E5 and the Series E6 Prototype. Source

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