This product is a dry type transformer with Dupont NOMEX paper as the main insulating material and immersed with H-grade insulating paint under vacuum pressure. The product has the advantages of high heat-resistant temperature, good heat dissipation, good flame retardancy, strong overload capacity, etc. The product adopts open design and can run stably at 180℃ without fan design, with low noise and strong overload capacity; the high and low voltage windings of the product adopt vacuum dipping paint process, which can be completely recycled without any pollution, meeting the national demand of ecological environment construction by "Lucid waters and lush mountains are invaluable assets", and is the ideal supporting product for critical or special sites such as rail transit, financial centers, airports and high-grade communities, which have strict requirements on power supply quality.