How Generators Work

How Do Generators Work? How Do Generators Create Electricity?

Generators are power generation appliances that supply electrical power during a power outage and prevent discontinuity of power activities or disruption of business operations. Generators are available in different electrical and physical specifications for use in different applications. We will look at how a generator functions, the main components of a generator, and how a generator operates as a backup source of electrical power in residential, agricultural and commercial applications.

How does a generator work?

An electric generator is a device that converts mechanical energy obtained from a fuel source into electrical energy as the output.

It is important to understand that a generator does not actually ‘create’ electrical energy. Instead, it converts the mechanical energy supplied to it to force the movement of electric charges present in the wire of its windings through an external electric circuit. The flow of the electric charge constitutes the output electric current supplied by the generator.

Modern Generators

The modern generator works on the principle of electromagnetic induction. The flow of electric charges can be induced by moving an electrical conductor, such as a wire that contains electric charges, in a magnetic field. This movement creates a voltage difference between the two ends of the wire or electrical conductor, which in turn causes the electric charges to flow, thus generating electric current.


Main components of a generator

The main components of an electric generator can be listed as follows:

(1) Engine
(2) Alternator
(3) Fuel System
(4) Voltage Regulator
(5) Cooling and Exhaust Systems
(6) Lubrication System
(7) Battery Charger
(8) Control Panel
(9) Main Assembly / Frame

Different Generators use different fuels to create electricity. Petrol, Diesel and Gas fuels are the most common fuel for modern generators. Agenerators supply generators that provide a varied range of power outputs and generators that use different fuel types.