Heze box-type transformer manufacturer, well-known trademark in Shandong Province, Mingda Electric. There are too many manufacturers of box-type transformers now, so you must choose carefully. They are not lower than the unit price of toroidal transformers, and even if you are cheated, you will not lose much. There is a good electronic transformer in Chongzhou. First you need that kind of box-type substation. There are currently two major categories: 1. American box transformer. It is an ordinary oil-immersed transformer plus high and low voltage switchgear. The heat dissipation part of the transformer is all exposed to the air, so the structure is relatively simple. 2. European box transformer. It looks like a small house. You can install an oil transformer or a dry-type transformer internally. High and low voltage switches are also in the house. 3. You must first determine the changes in the box this way. 4. Transformer capacity, input and output voltage. At present, the general oil transformers are S11 fully sealed type, and the dry type transformers include SG10, SG11, SCB10, SCB11, SCR10, SCR11, etc. 5. Whether it is terminal or ring network type. 6. How much power is needed? With the above preparations, you’re almost there. You can talk to the manufacturer. At present, there are many manufacturers of box-type transformers, including transformer manufacturers and switch manufacturers. You can look online first. Contact the manufacturer for further communication. Finally, finalize the technical contract and sales contract.