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Electric locomotive

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Complete the article about electric and diesel-electric locomotives

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David Fernández
David Fernández
Spain

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Electric locomotive

Complete the article about electric and diesel-electric locomotives

David Fernández
1

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An electric locomotive is one that is by an external energy , most often via electric lines . This differs from a diesel - electric locomotive , which has an onboard fuel tank and a diesel - powered generator to provide electricity for its motors . Purely electric power has numerous advantages over diesel - electric power , explaining the choice of electric locomotives for use in high - speed trains .

Firstly , an electric locomotive needs to carry neither a generator nor fuel . Its mass is therefore lower than a diesel - electric equivalent . This results in a significant efficiency , as the electric locomotive's smaller mass means less is done ? measured as a total number of ? on a given journey . For a comparable rate of acceleration , its motors are also required to provide less . As they use a lower , this means less motors can be used , making them smaller , thus further reducing weight and improving . In addition , electric locomotives use only energy . This means there is no need to energy from one to another on board the train ( electricity can be generated more efficiently in power stations ) .

In a diesel - electric unit , the energy conversion process starts with energy , which is within the hydro - carbon compounds of diesel . This fuel is to produce energy , and the heat is then by the engine into energy , which provides the movement to drive the train . This process is a very long way from being 100% only a small percentage of the initial chemical energy is converted to the energy that is actually used to drive the train , with a significant percentage being into the air in the form of , constituting energy .

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