1. Oil immersed transformer 2. Power transformer 3. IEC60076 Standard 4. M4 High B Grade CRGO Steels ... -proof capacity of transformer tank surface. * Longer service life.2. Benefit: * Lower no load loss and on load loss, energy saved, money ... .run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); S11 Series 33kV Power transformer(2,500kVA-25,000kVA)