Electrical generators are used to generate electricity in the form of alternating current (AC), which is used in most homes, or direct current (DC), which is commonly used in industrial settings. Generators are often driven by steam engines, gas engines, diesel engines, wind turbines, water turbines, solar cells, and nuclear fission.
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Different types of electric generators:
There are many different types of electric generators, but the two main categories are gas and diesel. Diesel generators tend to be more powerful and efficient than gas generators, and they can start and run at low temperatures. On the downside, diesel generators are less portable and more expensive than gas generators.
Gas generators, on the other hand, are more portable, quieter, and cheaper to run than diesel generators; however, they require preheating (i.e. starting fuel such as propane or natural gas) before they’ll start up.
One of the most important things to know about a generator is its capacity – how much electricity it’s capable of producing on a continuous basis. You’ll want a generator with both enough capacity to power your needs and a size that’s not too cumbersome for you to handle.
The electric generator is a machine that converts mechanical energy to electrical energy. In the simplest terms, it is a device for converting other forms of energy, such as steam or moving water, into electrical energy.
Electric generators are used extensively in industry and are also found in some vehicles. A generator is often referred to as a dynamo or motor/generator set. The electromechanical generator was invented by Michael Faraday in 1831. Early generators produced direct current (DC) only; however, alternating current (AC) generators were an improvement over the dc machine because they could be easily synchronized with the load.
The magnetic field produced by electric current flowing through an inductor can induce another current in a nearby conductor. Generators are classified according to the type of output power they produce: continuous or alternating . A continuous generator produces power at an essentially constant rate; whereas, an alternating generator produces power with an alternation between peak positive and peak negative voltages (ac).
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Generators are used for supplying electrical power when it is not available from the local utility. Generators may be owned by individuals , businesses , utilities , or government entities . Most of the largest generators are owned by electric utilities and operate as part of the interconnected grid .