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Which is better generator or alternator?
Alternators are considered more efficient than generators. Alternators conserve energy by using only the energy that is needed, while generators use all the energy that is produced. Alternators have a higher output than generators. When it comes to polarization, alternators and generators are very different.
What is an alternator in a generator?
An alternator is an electrical generator that converts mechanical energy to electrical energy in the form of alternating current. For reasons of cost and simplicity, most alternators use a rotating magnetic field with a stationary armature.
What is difference between generator and alternator PDF?
The alternator takes input supply from the stator whereas the generator takes input supply from the rotor. The armature of an alternator is stationary, and in the case of the generator, it is rotating. The output EMF of the alternator is variable, and the output voltage of the generator is constant.
Why do cars have alternators instead of generators?
Alternators have several advantages over direct-current generators (dynamos). They are lighter, cheaper, more rugged, and can provide useful charge at idle speed. … A set of rectifiers (diode bridge) is required to convert AC to DC.