Separable transformer is a special type of transformer that can be electrically isolated between primary and secondary coils, and can be quickly "physically separated" by plugging, rotating, or sliding mechanisms when necessary. It not only ensures personal safety and isolates power grid noise, but also allows users to complete disassembly and assembly without tools, greatly improving the flexibility of equipment maintenance, transportation, and on-site upgrades. The two semi-circular iron cores adopt a horizontal cut design, forming an upper opening with a width greater than the diameter of the cylindrical column, making it easy to insert and remove. The inner blocking plate is cut flat with the base to ensure the stability and no shaking of the iron core.