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On September 23, 1831, Faraday Invented The Alternator
- Jun 05, 2018 -

British scientist Faraday discovered the principle of electromagnetic induction in 1831. The principle that plays an important role in the development of human society is: "When the magnetic field lines of a magnetic field change, currents are induced in the surrounding wires."

Faraday finally discovered this hugely influenced scientific principle through research and trial and error, and he is convinced that using this principle can surely produce a alternator that can actually generate electricity.


A alternator is a device that converts mechanical energy into electrical energy. Through the prime mover, the energy contained in various primary energy sources is first converted into mechanical energy, which is then converted into electrical energy by a alternator, and sent to various power consumption occasions via transmission and distribution networks.

The use of water resources and turbines can be used to make turbine alternators; due to the difference in reservoir capacity and water head, it is possible to produce turbine alternators with different capacities and speeds.


The use of coal, oil and other resources, and boilers, gas turbines can be made into a turbine alternator, such alternators are mostly high-speed motor (3000rpm).

There are also various types of alternators that use wind energy, atomic energy, and geothermal energy.


In addition, due to the different working principle of the alternator, it is divided into a DC alternator, an asynchronous alternator and a synchronous alternator. The large alternators currently in widespread use are synchronous alternators.


Due to the different primary energy forms, different alternators can be made.