electric multiple unit
Plural
electric multiple units
1
a train consisting of self-propelled carriages that are powered by electricity from overhead lines or third rails
An electric multiple unit (EMU) is a type of train that is powered by electricity and consists of multiple carriages or coaches that are connected together. Each carriage in an EMU has its own electric motor, which allows the train to move without needing a separate locomotive. EMUs are often used for passenger services, particularly on suburban or intercity routes, because they are efficient, fast, and can accelerate quickly. They are commonly found in cities and areas with busy rail networks, providing a reliable and environmentally friendly mode of transportation.
- Electric multiple units are commonly used in urban transit systems for their efficiency and ability to handle high passenger volumes.
- EMUs are equipped with motors in each carriage, allowing them to accelerate and decelerate quickly, which is advantageous for frequent stops.
- Unlike traditional trains pulled by locomotives, EMUs distribute their propulsion power across all carriages, making them more energy-efficient.
- Many modern EMUs feature regenerative braking systems, which capture energy during braking and feed it back into the power grid or store it for future use.
- EMUs are often preferred for short to medium-distance travel due to their reliability, ease of maintenance, and reduced emissions compared to diesel-powered trains.