Power car

In rail transport, the expression power car may refer to either of two distinct types of rail vehicle:

SNCF TGV Duplex power car at Gare de Marseille-Saint-Charles, France.

The first of these types of vehicle is closely related to the locomotive. What differentiates the locomotive and the first type of power car is their construction or use. A locomotive can be physically separated from its train and does nothing but provide propulsion and control (and heat or electricity for passenger trains). On the other hand, a power car of the first type is frequently an integral part of its train, and if the train uses distributed traction, some of the car's interior space may be used for carrying passengers or cargo.

Examples

United States

Nearly all high speed trains use power cars, frequently at both ends. An example of these are the Acela Express trainsets in use by Amtrak, which are built by Bombardier in Canada using technology licensed from France's Alstom. The twenty Acela trainsets operate between Washington, D.C. and Boston, Massachusetts. Each trainset consists of six passenger cars and two power cars.

United Kingdom

Another traditional example would be the older InterCity 125, made for and used by British Rail and several subsequent privatised bodies like Great Western Railway.

New Zealand

Multiple units (diesel or electric) usually have a mix of power cars and trailers, often with one of each in a pair which can be coupled to other pairs to form a larger train; see e.g. New Zealand FP class electric multiple unit.

Australia
A Sydney Trains C set at Campsie station. There is a power car at each end, with two trailers in between.

The NSW TrainLink XPT, which is based on the InterCity 125, has a power car at each end, one pulling and the other pushing.[4] The Queensland Rail Diesel Tilt Train also has two power cars.[5] Electric Multiple Units, such as the Sydney Trains C set, have power cars on each end with trailer cars in the middle.[6]

References
  1. "49 CFR 238.5 - Definitions: Power car". Code of Federal Regulations Title 49: Transportation. Office of the Federal Register. Retrieved 17 November 2013.
  2. "power car". McGraw-Hill Dictionary of Scientific & Technical Terms. The McGraw-Hill Companies, Inc. Retrieved 17 November 2013.
  3. "Full Definition of POWER CAR". Merriam-Webster Dictionary. Merriam-Webster, Incorporated. Retrieved 17 November 2013.
  4. Section, Transport for NSW, Customer Experience Division, Customer Service Branch, Customer Information Services. "XPT Regional Trains". transportnsw.info. Retrieved 2018-02-26.
  5. UK, DVV Media. "Queensland orders 'next generation' diesel Tilt Train". Railway Gazette. Retrieved 2018-02-26.
  6. sector=Government, corporateName=Sydney Trains; contact=Communications Directorate. "C Set - Sydney Trains". Transport for NSW. Retrieved 2018-02-26.
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