S11-M series fully-sealed energy oil-immersed transformer product meets the requirements of the national standards of GB/T6541-2008. The product adopts a series of major improvements in terms of material, process and structure, so that the electrical performance of the product reaches the international advanced level of similar products in the nineties, and has the characteristics of high efficiency, low consumption, etc. and a great amount of electric energy and operating costs can be saved, thus the social efficiency is significant. Comparedwith the S9 series, the load loss is decreased by %30 on average, the product is an energy-efficient upgrading product primarily promoted by the State and is one of the ideal power distribution equipment in power distribution network centres in urban and rural areas.
The body of the product adopts a novel insulation structure, thus the anti-short circuit capacity is improved, the iron core is made of high-quality cold-rolled silicon steel sheets, the high-voltage windings are made of oxygen-free copper wires and adopt multi-layered cylindrical structure, and all fasteners are subjected to special anti-looseness treatment.
