... ISO 1,15kV, S11 ,3 phase oil immersion power transformer 2, aluminum or copper Winding 3, high efficiency, ... Describtation of Product:The three-phase oil-immersed distributing transformer applies new type insulating structure and makes short-circuit ... of a three-phase duplex winding off-circuit-tap-changing distribution transformer. Customized transformers of different specification are available upon ...