... ISO9001,ISO14001 2.Made with IEC,ANSI 3.Oil immersed Distribution/Power Transformer 4.Low loss, ... Dimension(mm)Track Spacing(mm)HV(KV)Tapping Range of HVLV(KV)OilTotalLWHS11-30/1030 ... ,SFZ9,SSZ9,SFSZ9,S10,SFZ11 and SFSZ11 series oil-immersed transformer ,with voltage class 10--110KV, ... Electric Power and Machine Building jointly. The oil vacuum purification plants are our patent products and ...