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Transcript
Functions of Electrical Transformer Electrical transformers are used to "transform" voltage from one level to another, usually from a higher voltage to a lower voltage. They do this by applying the principle of magnetic induction between coils to convert voltage and or current levels. In this way, electrical transformers are a passive device which transforms alternating current (otherwise known as "AC") electric energy from one circuit into another through electromagnetic induction. An electrical transformer normally consists of a ferromagnetic core and two or more coils called "windings". A changing current in the primary winding creates an alternating magnetic field in the core. In turn, the core multiplies this field and couples the most of the flux through the secondary transformer windings. This in turn induces alternating voltage (or emf) in each of the secondary coils. Electrical transformers are used to "transform" voltage from one level to another, usually from a higher voltage to a lower voltage. After production electrical energy in hydro station the voltage level is very high because it need to transported with transmission line alone this process they are losses before it arrives the substation for distribution furthermore it need to be boosted with transformers which can be power transformer or distributing transformer depending on the area to be supplied or to travel with the electrical energy
