D11 type single phase Distribution transformer 1) CTQC,CE,ISO9001,ISO14001 2) Apply for IEC,GB,ANSI 3) Low losses D11 type single phase Oil-immersed transformerMain Functions And ... electric network,remote village,dispersive hamlet.etc..Single phase pillar type teansformer possess multiple parameter,providing special order if necessary. D11 type single phase Oil-immersed distribution transformer