Dry type transformer the strengthen glass fiber thin insulation resin dry type transformer---SC( B)9, SC( B)10, can be used as the renewed oil immersed type, ... humidity 100%, environment temperature is not higher than 40 10. highest temperature rise:100K 11. cooling method: self ... insulation grade : F class 14. insulation level: 1)10 KV class product: power frequency withstand voltage 35 KV, impulse ...