POWER TRANSFORMER - WHAT WE NEED TO KNOW?
What Is A Power Transformer?
A transformer is ‘‘a static device consisting of a winding, or two or more coupled windings, with or without a magnetic core, for inducing mutual coupling between circuits. Note: Transformers are exclusively used in electric power systems to transfer power by electromagnetic induction between circuits at the same frequency, usually with changed values of voltage and current.’’
Transformers are devices that transfer energy from one circuit to another by means of a common magnetic field. In all cases except autotransformers, there is no direct electrical connection from one circuit to the
other.
When an alternating current flows in a conductor, a magnetic field exists around the conductor, If another conductor is placed in the field created by the first conductor such that the flux lines link the second conductor, then a voltage is induced into the second conductor. The use of a magnetic field from one coil to induce a voltage into a second coil is the principle on which transformer theory and application is based.
Transformer engineering is one of the earliest sciences within the field of electric power engineering, and power is the earliest discipline within the field of electrical engineering. To some, this means that transformer technology is a fully mature and staid industry, with little opportunity for innovation or ingenuity by those practicing in the field.
There are numerous types of transformers used in various applications including audio, radio, instrument, and power. Power transformers are used extensively by traditional electric utility companies, power plants, and industrial plants.
This site is all about Power Transformers, its applications, concepts, and related information.
Enjoy and may you learn a lot.
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