"Guanggao" SC(B)9(11)/ SG(B)11 type(H-class)dry type transformer is made with vacuum systems, foil type coil winding machines, and silicon steel sheets shearing equipments imported from Georg company, the technology is brought from German. The technical specification is totally reached GB1094/ GB/T10228/ GB6450 and IEC60076-11 international standers. This product can be widely used in electric power transmission/ hotels/ high rise buildings/ commerce centers/ stadiums/ petrochemical factories/ airports/ stations/ offshore drilling platforms and so on. Especially the places that near load centre / or need special fire safety requirements and whose installation space is limited. Thus, the advantages of small volume/ good flame resistant can be very attractive.