The oil-immersed transformers produced by the company use fully oil-filled, sealed corrugated oil tanks. The oil tank shell adapts to its own elastic expansion performance and can meet heat dissipation requirements. The body adopts a new insulation structure to improve the short-circuit resistance; the iron core is made of high-quality cold-rolled silicon steel sheets; the high and low voltage windings are made of oxygen-free copper wires and adopt a multi-layer cylindrical structure, and all fasteners All use special anti-loosening treatment. The product has the characteristics of high efficiency and low loss, which can save a lot of power consumption and operating costs, and has significant social benefits. It has been widely used in power plants, substations, industrial and mining enterprises, ports, airports and other places