JR Freight Class HD300
Encyclopedia
The is a hybrid
Hybrid vehicle
A hybrid vehicle is a vehicle that uses two or more distinct power sources to move the vehicle. The term most commonly refers to hybrid electric vehicles , which combine an internal combustion engine and one or more electric motors.-Power:...

 diesel/battery Bo-Bo
Bo-Bo
A Bo-Bo or Bo′Bo′ is a locomotive with two independent four-wheeled bogies with all axles powered by individual traction motors...

 wheel arrangement
Wheel arrangement
In rail transport, a wheel arrangement is a system of classifying the way in which wheels are distributed beneath a locomotive.. Several notations exist to describe the wheel assemblies of a locomotive by type, position, and connections, with the adopted notations varying by country...

 shunting locomotive
Switcher
A switcher or shunter is a small railroad locomotive intended not for moving trains over long distances but rather for assembling trains ready for a road locomotive to take over, disassembling a train that has been...

 type operated by JR Freight in Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

.
The prototype locomotive, HD300-901, was delivered from the Toshiba
Toshiba
is a multinational electronics and electrical equipment corporation headquartered in Tokyo, Japan. It is a diversified manufacturer and marketer of electrical products, spanning information & communications equipment and systems, Internet-based solutions and services, electronic components and...

 factory in Fuchū, Tokyo
Fuchu, Tokyo
is a city located in western Tokyo Metropolis, Japan. As of 2010, the city has an estimated population of 255,394 and a population density of 8,700 persons per km². The total area was 29.34 km²...

 to Tokyo Freight Terminal on 30 March 2010.

Design

The new locomotive uses lithium ion batteries, and is designed to reduce exhaust emissions by at least 30% to 40% and noise levels by at least 10 dB compared with existing Class DE10
JNR Class DE10
The DE10 is a class of Japanese C-B wheel arrangement diesel-hydraulic locomotives. 708 locomotives were built between 1966 and 1978.-DE10-0 subclass:158 DE10-0 locomotives were built with steam heating boilers for passenger use....

 diesel locomotives. Tests conducted at Tokyo Freight Terminal in June 2010 demonstrated fuel savings of 36%, NOx emission reductions of 62%, and noise level reductions of 22 dB compared with a class DE10 locomotive.

Externally, the locomotive is finished in a bright red livery to aid visibility, with yellow and black diagonal warning stripes at the ends.

History

The prototype locomotive was delivered to Tokyo Freight Terminal on 30 March 2010 for approximately six months of trials before being moved to Matsumoto
Matsumoto, Nagano
is a city located in Nagano Prefecture, Japan. Matsumoto is designated as a Special City.-Outline:The new city of Matsumoto is the city comprising the mergers of the old city of Matsumoto and four villages. Matsumoto officially absorbed those villages without creating a new municipal...

 in Nagano Prefecture
Nagano Prefecture
is a prefecture of Japan located in the Chūbu region of the island of Honshū. The capital is the city of Nagano.- History :Nagano was formerly known as the province of Shinano...

 later in the year to assess performance at higher altitudes. The locomotive was moved to Sapporo Freight Terminal in Hokkaido
Hokkaido
, formerly known as Ezo, Yezo, Yeso, or Yesso, is Japan's second largest island; it is also the largest and northernmost of Japan's 47 prefectural-level subdivisions. The Tsugaru Strait separates Hokkaido from Honshu, although the two islands are connected by the underwater railway Seikan Tunnel...

 in January 2011 to assess battery performance and adhesion in cold winter conditions.

The prototype locomotive entered revenue service from 11 July 2011, on shunting operations at Tokyo Freight Terminal. One full-production locomotive is scheduled to be delivered during fiscal 2011, also for use at Tokyo Freight Terminal.

Classification

The HD300 classification for this new locomotive type is explained below. As with previous locomotive designs, the prototype is numbered HD300-901, with subsequent production locomotives numbered from HD300-1 onward.
  • H - hybrid locomotive
  • D - four driving axles
  • 300 - synchronous motor
    Synchronous motor
    A synchronous electric motor is an AC motor distinguished by a rotor spinning with coils passing magnets at the same rate as the power supply frequency and resulting rotating magnetic field which drives it....

    s

External links

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