In this article, you will learn:-
- How to work a Generator?
- How does a Generator generate Electricity?
- Types of Generator
- Parts of a Generator
- Difference between an electric Generator and an Alternator
How to work a Generator?
In 1831 physicist Michael Faraday found that when a magnet is taken inside a wire, then there is a "flow" of electrons inside the wire, this movement is called an electric current. A generator is any machine that converts energy into electricity, but regardless of the source of this energy - whether it is coal, water or wind energy - electricity is generated through the speed within an electric field.
How does a Generator generate Electricity?
In all probabilities, you have seen the magnets act in some way - perhaps small, rectangular magnets, which are used in home and office settings, which paste items of interest for the refrigerators. A special type of cylinder-shaped magnet, called an electromagnet, is placed around a series of insulated coils of conducting wire (like copper wire), which are wrapped around a central shaft.
Convert Watts into Amps
Each of these coils, then around the shaft, is like a ring and is oriented on a right angle on the axis of the shaft, much like the relation of a spindle tire that holds them. When the shaft connected with the wire rotates, then a stream arises, because the cylindrical electromagnet outside the stars does not rotate with them, thus establishing a relative movement between the magnetic field and charging inside the conductor wire.
Even if the source of the magnetic field goes in the area around fixed wire or stars, then it will be the same. It does not matter who is walking, magnet or wire (or both), as long as it is relative, it is running between them.
Types of Generator
Electric generators:
Electric generators can be divided into thermal generators, which use heat to generate electricity, and kinetic generators, which use the energy of motion to generate electricity. (Note that summer, work, and energy are all equal units - usually joules or more than one, but sometimes calories, ergons or British thermal unit [BTU]. Once power is per unit energy and usually Watts or Horse Power.
Thermal generators:
Fossil-fuel generators are industry standard and operate by burning of coal, petroleum (oil) or natural gas. These fuels are abundant in abundance, and they host environmental and health problems that have prompted humanity to come in the form of alternatives. Cogeneration involves transmitting waste steam from the type of plants for customers who use steam for their small generators.
Nuclear energy exploits the energy released during nuclear fission, a "clean" but controversial process. Natural gas generators produce electricity without producing steam and can be combined with steam output. The biomass plant, in which non-conventional items are used as fuels (like wood or plant matter), has gained momentum at the beginning of the 21st century.
Kinetic Generator:
Two main types of kinetic power generators are hydroelectric plants and wind energy (or wind turbines). Hydroelectric plants depend on the flow of water to spin the shaft inside the generator. Since some rivers meet at constant rates throughout the year, most of these facilities include artificial lakes (such as made in southern Nevada and Mead Lake in Northern Arizona) in the form of flowing in the dam, artificial forms Artificially manipulated according to the requirements. Area.
The advantage of wind energy is not to disrupt local land and wildlife, in the same way, artificial lakes do, but the wind is less efficient than generating electricity, and in it, the level of air level and various levels of motion can also cause problems Are. While "windmill farm" may include many turbines connected to create a certain level of power, large power is enough to provide electricity to communities on a large scale until 2018.
Parts of a Generator
While shopping for any kind of generator, learn the parts that work together to create a generator and technology.
- Frame - Shields electric and moving parts. Keeps dirt and moisture out.
- Rotating knob - connected to a motor or propeller in the wind/water generator.
- Bearings - Reduces friction due to the rotation.
- Field windings - A coil that creates a magnetic field through which the current flows.
- Armature - Opposes magnetism creates electromagnetic induction by spinning inside the stator.
- Stator - a constant magnetic field with large copper twists.
- Commutator - A conductor through which electricity is collected.
- Brush assembly - rubbing against the commutator, which sends out the current
Difference between an electric Generator and an Alternator
Although similar in design and theory, there are some differences:
1- The most important difference is in the design. While the generator has a stable area in which the conductor rotates to produce electromagnetic induction, the entire magnetic field of an alternator remains constant with its conductors.
2- Generators are capable of both AC and DC electricity. Alternators are usually made for A / C (rectangular section) applications, hence the name is "alternator".
3- The built-in design allows the inter-generator to produce large amounts of kilowatt and, therefore, are much more substantial. Similarly, alternators are more economical, waste parts, and are used in small load applications such as automobiles.
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