... Transformer,BKC,JBKDG & SGPower Transformer,Dry type transformer,Three-phase Dry-type Power Transformer,Transformer,SG,DG DG and SG ... series Dry type transformerGeneralDG and SG series single-phase and three-phase dry type transformer adopts high quality material and ... ,steam,chemical deposition,dust or dirt that will affect transformers insulation seriously,also explosive or corrosive medium is not ...