Isolation transformer belongs to safety power supply, which refers to a transformer with electrical isolation between the input winding and the output winding. Isolation transformer is used to avoid accidental contact with live objects at the same time. The isolation of transformer is to isolate the current of the primary and secondary winding coils. Widely used as a control power supply for general circuits, safety lighting, and indicator lights in the electronics industry or industrial and mining enterprises, machine tools, and mechanical equipment.