Locomotives are vehicles for pulling train compositions from passenger railcars or freight cars. Depending on the primary engine, the locomotives can be steam, diesel, electric or diesel-electric locomotives and this combination makes the locomotive a hybrid vehicle 1/2hp-56-motors. We have a separate motor and a power generator that is called a locomotive power unit that can produce more than 560 kW of electric power. This is unbelievable proof of power generation and ingenuity.
Steam locomotives emerged from 1825 and after what these steam engines were perfected in the 1890s is that the diesel engine was also applied to locomotives. In the United States, shortly thereafter, more precisely in 1895 the first electric motor was used in a locomotive. The electric motor can be much more powerful than the diesel engine in locomotives of the same weight, but it needs a power grid. To escape this, in the 1910s locomotive manufacturers began the development of diesel-electric locomotives, as they have a diesel engine that drives a generator, which will provide power to electric motors that move the wheels.