As core power conversion equipment widely used in national power grids, industrial bases and urban and rural power renovation projects, GB Standard Oil Immersed Transformer strictly follows Chinese national standard design, manufacturing and testing specifications. Different from EU CE and North American UL standard transformers, GB series transformers are optimized for national grid operating parameters, climatic environments and power load characteristics, featuring standardized structure, clear classification and stable working principles.
The basic working principle of theGB Standard Oil Immersed Transformer relies on electromagnetic induction to realize voltage conversion and power transmission. Through the mutual inductance effect between primary windings and secondary windings, the equipment converts high-voltage grid electric energy into low-voltage usable electric energy, completing safe power distribution and load transmission. The internal high-quality silicon steel core concentrates magnetic lines to reduce magnetic loss, while pure copper windings ensure efficient current transmission, forming the core operating system of energy conversion.
According to GB national standard classification, GB Standard Oil Immersed Transformer covers multiple types divided by capacity, cooling method and structural form. Common types include ONAN natural oil circulation natural cooling type and ONAF forced air cooling type. In terms of structure, it is divided into corrugated tank type and conservator type, adapting to light-load municipal power distribution, heavy-load industrial operation and long-term outdoor grid operation scenarios respectively.
Oil immersion insulation and heat dissipation is the core technical feature of GB standard transformers. The national standard specifies dedicated insulating oil parameters, which fills the inner tank to isolate air, prevent winding insulation aging, and absorb and dissipate operating heat in real time. This oil immersion structure effectively solves the overheating and insulation breakdown problems caused by long-term full-load operation, ensuring continuous and stable operation of power equipment under complex seasonal temperature changes.
All GB Standard Oil Immersed Transformer products implement strict national standard loss grade regulations, covering S11, S13, S15 and other energy-saving low-loss series. Each model undergoes strict no-load loss, load loss and withstand voltage tests in accordance with GB/T 1094 series standards, ensuring consistent product performance, strong versatility and convenient grid matching and maintenance. It is widely used in state grid projects, industrial and mining enterprises, urban and rural power grid upgrading, and public infrastructure power supply.
With standardized principle design, complete classification specifications and national standard quality certification, our GB standard oil immersed transformers are reliable basic power equipment for domestic grid construction and overseas Chinese standard engineering projects. Welcome to contact us for parameter classification consultation and standard project quotation.