Transformer plays an important role in AC. Without them, it is impossible to increase or reduce the voltage of AC, carry it for a long distance, and use it correctly. Here, let's take a look at the schematic diagram of transformer, as well as the working principle and function of transformer to further understand the strange and mysterious current equipment of transformer.

1、 Schematic diagram of transformer

Working principle of transformer_ Function of transformer

2、 Working principle of transformer

The working principle of the transformer is the principle of electromagnetic induction. The transformer has two sets of coils. Primary and secondary coils. The secondary coil is outside the main coil. When the primary coil is connected with AC, the transformer core generates alternating magnetic field, and the secondary coil generates induced electromotive force. The turns ratio of the transformer coil is equal to the voltage ratio.

For example, the primary coil is 500 turns, the secondary coil is 250 turns, the primary is connected with 220V AC, and the secondary voltage is 110V. Transformers can either step down or ascend. If the primary coil is smaller than the secondary coil and is a step-up transformer, the low voltage can be increased to high voltage.

3、 Function of transformer

1. Ensure electricity safety and meet the needs of different electrical teams.

2. Use a transformer to reduce the high voltage.

3. The transformer also has the function of transforming impedance.

4. The transformer also has the function of converting current.