Optimal Design Of Energy-saving Dry-type Transformer SCB10-1600/10

Transformers are invented in 1886.At that time,transformers are defined as Dry-type Transformer.However,it was difficult to make transformers of high voltage and large capacity because of the material insulation level.In late 1900 s,people found that oil could increase insulation level and cooling performance of transformers.Due to urbanization and population accumulation,residential density began to increase.Besides,power supply load grew as the number of skyscrapers and structures began to boom.Hence,an explosion-proof,fire-proof and environmental-friendly transformer that can be built near load center is in urgent need.For this reason,dry-type transformer was emphasized and in use again.Along with the continuous optimization and development of the manufacturing capability of China as well as the upgrading process equipment and methods,the demand for transformer cost performance is increasing.In the increasingly competitive dry-type transformer market,the demand for cost performance of SCB10-1600/10 is increasing as a common standardized product.Under new equipment and process,it is very necessary for transformer manufacturers to optimize the product cost performance.The design is based on the original SCB10-1600/10 design of Sunten Electric.On the premise of GB,product safety and reliability,the product was optimized in performance index and cost performance.Some designing schemes are proposed after the optimization.And a comparative study between the old designing schemes was carried out.Firstly,a deep research into the original electromagnetic scheme is carried out.And a couple of designing schemes are proposed by optimizing the coil winding,core diameter and other factors that might affect manufacturing costs.After that,a electromagnetic calculation was carried out for the optimized scheme to choose the suitable main air channel distance,side insulation materials,winding insulation materials.Meanwhile,a reasonable winding structure and wire gauge had been chosen to reduce loss and minimize the manufacturing costs.By comparison,MAXWELL models were built to analyze electromagnetic fields and magnetic flux to choose the most suitable designing and process scheme to reduce eddy current loss and other loss.At last,A trail production was made to verify the theoretical design and calculation.By comparison,the theoretical values were proven.