Working principle of power transformer

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Working principle of power transformer

It works on the principle of electromagnetic induction. The transformer has two groups of coils: primary coil and secondary coil, and the secondary coil is outside the primary coil.

When the primary coil is connected with AC, the transformer core generates alternating magnetic field, and the secondary coil generates induced electromotive force. Coil of transformer

The turns ratio is equal to the voltage ratio. For example, the primary coil is 500 turns, the secondary coil is 250 turns, the primary coil is connected with 220V AC, and the secondary voltage

It's 110V. The transformer can depressurize or boost.