... Transformer, 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 ... : for 1min under two times of rated current SG three phase dry type power transformer 400V to 380V