The workingprinciple of a contact regulating transformer is similar to that of an alternator-regulator system. Essentially, the transformer is designed to control the power output of an AC-DC power supply. The contact regulating transformer is comprised of a contact coil, two arms, and two contact electrodes. The contact coil is connected to the arms, while the contact electrodes are connected to the DC power supply.

When the AC current flows through the contact coil, an electromagnetic field is generated which acts on the two arms. The arms then move, connecting the contact electrodes to either the positive or the negative output of the DC power supply. Depending on how the contact electrodes are connected, the voltage output can be varied.

For example, if the contact electrodes are connected to the positive voltage, the output voltage will be higher, and if the contact electrodes are connected to the negative voltage, the output voltage will be lower. This allows for the precise control of the output voltage.

In summary, the working principle of a contact regulating transformer is relatively simple and is based on the principle of electromagnetic induction. The transformer produces an electromagnetic field which acts on the two arms and shifts the contact electrodes, allowing for the precise control of the output voltage.

LuShan, est. 1975,  is a Chinese professional manufacturer specializing in power transformers and reactors for 48 years. Leading products are single-phase transformer, three-phase transformers, DC inductors, AC reactors, filtering reactor, expoxy resin high-voltage transformer and intermediate, high-frequency products. Our transformers and reactors are widely used in 10 application areas: rapid transit, construction machinery, renewable energy, intelligent manufacturing, medical equipment, coal mine explosion prevention , excitation system, vacuum sintering, central air conditioning.

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