A turbine–electric transmission, or turbine–electric powertrain, system includes a turboshaft gas turbine connected to an electrical generator, creating electricity that powers electric traction motors. No clutch is required.
Turbine–electric transmissions are used to drive both gas turbine locomotives (rarely) and warships.
A turbo generator is an electric generator connected to the shaft of a turbine (water, steam, or gas) for the generation of electric power. Large steam-powered turbo generators provide the majority of the world's electricity and are also used by steam-powered turbo-electric and gas-turbine-electric powered ships.
Small turbo-generators driven by gas turbines are often used as auxiliary power units (APU, mainly for aircraft).
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