Electric furnace transformers have adopted a series of major reforms in materials, processes and structures. They have the characteristics of small size, light weight, high efficiency, low loss, low noise, and reliable operation. They can reduce a lot of power grid losses and long-term operating costs, and have excellent economic benefits. Suitable for smelting high-quality alloy steel, ferroalloy and other metallurgical industries; production of yellow phosphorus, calcium carbide, synthetic resin and other chemical industries. This product conforms to national standards: GB1094.1-2013 “Power Transformer Part 1 General Provisions”, GB1094.2-2013 “Power Transformer Part 2 Temperature Rise”, GB1094.3-2003 “Power Transformer Part 3 Insulation Level, Insulation Test and External Insulation Air Gap”, GB1094.5-2003 “Power Transformer Part 5 Ability to Bear Short Circuit”, GB/T6451-2015 “Oil-immersed Power Transformer Technical Parameters and Requirements”.