... no brush, no wea ST Step-down transformer Specifications Specifications :1.Input voltage:rated ... Transformer(BK,SBK),power transformer,electric transformer,JBK Machine Tool Control Transformer, Transformer,BKC,JBKDG & SGPower Transformer,Dry type transformer,Three-phase Dry-type Power Transformer,Transformer ... connection group and capacity of tapped winding can be designed and produced according ...