Head End Power

Head End Power

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Head end power (HEP) or electric train supply (ETS) is a rail transport term for the electrical power distribution system on a passenger train. The power source, usually a locomotive at the front or "head" of a train or a generator car, generates all the electricity used for lighting, electrical and other "hotel" needs. The maritime equivalent is Hotel Electric Power (HEP). Originally, trains hauled by a steam locomotive would be provided with a supply of steam from the locomotive's boiler for heating the carriages. When diesel locomotives and electric locomotives replaced steam, the steam heating was then supplied by a steam-heat boiler. This was oil-fired (in diesel locomotives) or heated by an electric element (in electric locomotives). Oil-fired steam-heat boilers were appallingly unreliable. They caused more locomotive failures on any class to which they were fitted than any other system or component of the locomotive, [citation needed] and this was a major incentive to adopt a more reliable method of carriage heating.
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Product details

  • Paperback | 48 pages
  • 152 x 229 x 3mm | 82g
  • Acu Publishing
  • United States
  • English
  • 6136747405
  • 9786136747408