35kV oil immersed power transformer adopts new materials, new processes and new structures, with optimized design and careful manufacturing. The iron core is made of high-quality silicon steel sheet with high magnetic conductivity and low loss. The structure is a rigid frame structure, with good stability, low noise and strong short-circuit resistance. The winding adopts high-quality oxygen free copper wire, which has good conductivity and low loss. The winding is designed as an advanced longitudinal oil duct structure, with good heat dissipation effect, high electrical insulation strength and good impact resistance. The body is pressed with high-strength electrical laminate, all leads are firmly clamped, and the structure is scientific and reasonable. Plate reinforced casing is suitable for high altitude areas. This series of transformers are equipped with all round protection devices, with advanced technical performance, energy conservation, environmental protection, safety and reliability.