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Lexicon DIY-Knowledge

Generator/alternator

Generator

Generador

Générateur

An electric motor converts electrical energy into mechanical energy, whereas a generator (alternator) converts mechanical energy into electrical energy. In its simplest form, a motor is operated at nominal speed to generate electrical energy.

Application:

Combustion engine + alternator = generator of electricity

Rotary-current motor + D-generator = converter

There is the same variety of generators, as there are motors:

DC motor DC generator

AC motor AC generator

D asynchronous motor D asynchronous generator

D synchronous motor D synchronous generator

in self-excited and separately excited versions, but also with permanent excitation by a permanent magnet.

(D = three-phase current)