... traction, drving, DC transmission, frequency conversion and rectified power source fields. According to user's requirements, the ... B.II. Forced oil water-cooled Series rectifier transformerIII. ZS Series Oil-immersed Type Rectifier Transformer Technical ... ZGS Pad -- Mounted, YB Series Cubicle-type Substation, Furnace Transformer, Rectifier Transformer, Power Transformer, Distribution Transformer and so ...