adopts advanced electromagnetic design software, in line with IEC60076, GB1094, GB/ T6451, GB/T25289-2010 standards. There are no devices like reservoirs, air respirators..., so it ensures that the transformer oil does not come into contact with the air, improves the antioxidant capacity of the transformer oil, and delays its aging. The core is made of high-quality cold-rolled grain-oriented steel sheet with laminated structure miter joints to reduce no-load losses and no-load current. The tank body is corrugated, and the corrugated fins can expand and contract with the change of transformer oil, which can maintain the pressure inside the tank body and increase its reliability and anti-corrosion ability. The coil of the distribution transformer is wound by a high-strength enameled conductor, which has a good ampere balance and a reasonable insulation structure, and has a strong short-circuit capability. Distribution transformer adopts free unpacking structure. The sealing material parts are made of high-quality acrylic rubber, which can effectively protect light aging and thermal aging.