The products of model S10 series, made on base of advanced technology in the world, are three phase. oil immersed transformers. Its rated voltage is 6,10, 13.8KV and 35KV,rated frequency is 50Hz.These transformers are updated products and conform with the National standard GB1094•1í½5-85.All items of properties have met the standard level of DIN 42503 and the technical requirements of IEC600073.