1.SG,DG Power Transformer,Dry type transformer,Three-phase Dry-type ... -phase Dry-type Power Transformer,Transformer,SG,DG DG and SG series Dry type transformerGeneralDG and SG series single-phase and three-phase ... )3.Efficiency:≥95%4.Waveform distortion:no additional waveform distortion SG Power Transformer