4BD1 EX120 SH120 Excavator Alternator 30A 24V Single Slot 8970222111 8970222110

4BD1 EX120 SH120 Excavator Alternator 30A 24V Single Slot 8970222111 8970222110

 Alternator:

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. Occasionally, a linear alternator or a rotating armature with a stationary magnetic field is used. In principle, any AC electrical generator can be called an alternator, but usually the term refers to small rotating machines driven by automotive and other internal combustion engines.

An alternator that uses a permanent magnet for its magnetic field is called a magneto. Alternators in power stations driven by steam turbines are called turbo-alternators. Large 50 or 60 Hz three-phase alternators in power plants generate most of the world's electric power, which is distributed by electric power grids.

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