How Do Generators Produce Electricity

In August 1831, Michael Faraday built the first transformer. A few months after that he designed and built this simplistic piece of the device based on his ring, which led to the development of a power generator for the first time. 

Michael Faraday noticed that when a magnet is moving inside a coil, an electric current flows in the wire.

Generators are useful devices that supply electric power during a power cut-off and prevent daily activities from being interrupted.

A generator is a device that converts mechanical power into electrical power through an electromagnetic induction process.

How Electricity is produce 

A generator is an electricity-producing machine. An electrical generator is a machine that transforms mechanical energy derived from external energy into electrical energy as an output.

In actual, Generators do not produce electricity. A generator is a machine and generates mechanical power into electrical vitality. They transform into electrical energy by capturing the force of motion and forcing electrons from an external source through an electrical circuit.

Electricity producing generators are based on the principle of the Faraday law of electromagnetic reason. When a conductor is placed in a different magnetic field, the EMF is generated.

Working of Generator 

Generators are basically electrical conductor coils, typically copper wires, tightly bonded to metalcore and that is mounted to bend around inside a display of large magnets. As an electric conductor passes through a magnetic field, the magnetically will interface with the electrons in the conductor to allow an electric current to flow within it.

In a generator motor, the conductor coil and its core are called armature. When the generator armature head rotates, the iron shaft has a light magnetic field. The voltage starts to increase as the armature rotates. This affected voltage produces a strong pressure, which increases the strength of the magnetic field. The expansive field provides higher voltage in the armature.

The generator classified basically in two types –

AC generator

DC generator

AC Generator 

They are also called alternators. It is the most important means of generating electricity in many places because nowadays all consumers are using AC. AC generator running is based on electromagnetic electricity. 

There are two kinds of induction generators and synchronous generators. The induction generator does not need separate DC excitation, regulator control, frequency control. This theory occurs when the conductor coil activates current and voltage in a magnetic field. The generator must run at a constant speed to convey a constant AC voltage, even with no load accessible.

The synchronous generator is a very large size generator. The contemporary generators are essentially used in the power plant department. These can be rotating field types or rotating armature types. In a rotator armature type generator, the generator that contains the armature is present on the rotor and fielded on the stator. The armature current is taken by the rotor through a slip ring and brush. Rotator field type alternators are used due to its high power generation capacity and the absence of slip rings and brushes.

  • These generators are normally maintenance-free due to the need for brushes.
  • Simply step up and down into the transformer.
  • The transmission link size may be slim due to the step-up feature
  • The size of the generator is relatively small compared to a DC machine
  • Disadvantages are relatively less than DC machine
  • These generator breakers are relatively small compared to DC breakers

DC Generator 

DC generators are typically found in off-grid applications. These generators provide a continuous power supply directly to electrical storage devices. DC generators can be controlled back to unmoving speeds because batteries are Inflammatory for significantly higher fuel recovery.

DC generator is classified according to the way their magnetic field originates in the stator of the machine.

  1. Permanent  magnet DC generator
  2. Stimulate the DC generator separately and
  3. Self-excited DC generator  

Primarily DC machines have many varieties of operating characteristics that can be obtained by selecting the method of excitation of field windings.

This leads to low variations which are acceptable for some regular state applications.

No shielding is required for distribution, so the cable will cost less than AC.


In this blog you can find here How Do Generators Produce Electricity. I hope my all information is helpful for all users. If you need more details relating to our portable New Generator and portable Used Generators? Contact our team at EO energy looks forward to hearing from you.

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