A transformer is an electrical device that takes electricity of one voltage and changes it into another voltage. A power transformer consists of a coil wrapped around an electromagnet that transfers electricity from one circuit to another without changing the frequency of the electric energy.
A transformer changes electricity voltage using the properties of electricity. In an electric circuit, there is magnetism around it. Whenever a magnetic field changes, a voltage is made. Although the frequency of the electrical energy isn't changed, the voltage and current commonly change when passing through.
The most common types of transformers are the step up and
step down transformers. They raise or reduce the voltage of the current passing
through them. Other types of transformers include three phrase, single phase
and distribution transformers.
Since the invention of the transformer in 1885, transformers
have become essential for the transmission, distribution, and utilization of
alternating current electrical energy.
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