The 380V to 220V isolation transformer is a kind of power equipment, and its principle is based on electromagnetic induction and the basic working principle of the transformer. Here's a brief explanation of how it works:
1.Transformer Fundamentals:
The basic principle of an isolation transformer involves two coils (windings): a primary coil at the input and a secondary coil at the output. The two coils are connected to each other by a magnetic core.
When an electric current is introduced into the input coil (primary coil), the resulting magnetic field is conducted through the magnetic core to the output coil (secondary coil).
The conduction of this magnetic field induces a current in the secondary coil, which generates a voltage at the output.
Depending on the transformation ratio of the transformer, the relationship between the input and output voltages is determined by the ratio of turns to the coil. i.e., v1 v2=n1 n2
where v1 and v2 are the input and output voltages, respectively, and n1 and n2 are the turns of the primary and secondary coils, respectively.
2.Isolation transformer principle:
The main feature of an isolation transformer is that there is electrical isolation between the input and output coils, i.e. they do not have a direct electrical connection. This avoids the direct conduction of current between the two coils, providing additional safety and electrical isolation.
For 380V to 220V isolation transformers, the input is usually designed to be 380V and the output is 220V. Such designs are commonly used in scenarios where a high-voltage power supply, such as industrial power, needs to be converted to a low-voltage power supply for use by some specific equipment.
3.Working Steps:
When a current of 380V passes through the primary coil, the resulting magnetic field conducts to the secondary coil.
In the secondary coil, the induced current will produce an output voltage of 220V.
Due to the galvanic isolation, there is no direct electrical connection between the input and output, which ensures the electrical safety of the isolation transformer.
4.Applications & Benefits:
The 380V to 220V isolation transformer is often used to provide a low voltage power supply, which is suitable for some household appliances or other specific equipment that require 220V voltage.
With galvanic isolation, the isolation transformer provides additional safety against direct conduction of electric current, reducing the risk of electric shock.
Overall, the 380V to 220V isolation transformer realizes the conversion from high voltage to low voltage and ensures the safety of the electrical system through basic transformer principles and electrical isolation.