电源

电动轨道车辆可以从不同类型的来源接收电力。一个例子是电动汽车，它通过称为受电弓的连接从架空电线汲取电流。另一个例子是由车载电池供电的。最后，还有柴油电动汽车，配备内燃机（所谓的“发动机”），可在机车上产生电流。虽然它们的视觉和听觉存在可能彼此截然不同，但电动和柴油电动汽车都使用牵引电机进行推进，由电力驱动。

• Wire-Electric - Drawing electrical power from overhead wires , via a pantograph connection
• Battery-Electric - Drawing electrical power from onboard rechargeable batteries
• Diesel-Electric - Generating electrical power onboard, with an internal combustion engine

While their visual and auditory presence may be vastly different from one another, all these types of vehicles use similar drivetrains for propulsion - traction motors powered by electricity.