... 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 ... maintenance,it can be applied to such power transmission and distributionplaces like underground railway,high ... current SG three phase dry type power transformer 400V to 380V