Power Transformer

Power transformer, a kind of device, utilizes the principle of electromagnetic induction to change alternating voltage. It is mainly composed of coil and iron core (magnetic core). And the coil has two or more than two windings: primary coil and secondary coil. Primary coil is connected with the power source, and the rest is called the secondary coil. And the main functions of power transformer are voltage transformation, current transformation, impedance transformation, isolation, voltage regulation, etc. According to the cooling method, power transformer can be divided into dry type transformer and oil immersed transformer.

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