The substation GIS, main transformer, 35kV switch cabinet, 10kV switch cabinet, reactive power compensation (SVG), arc suppression coil, integrated self-control system and other auxiliary control systems have been installed and debugged in the factory, and installed into environmentally friendly non-metallic modular intelligence Prefabricated cabins, thus forming eight prefabricated cabins, including GIS prefabricated cabin, main transformer prefabricated cabin, 35kV prefabricated cabin, 10kV prefabricated cabin, secondary combination equipment prefabricated cabin, reactive power compensation (SVG) prefabricated cabin, arc suppression coil prefabricated cabin, and living prefabricated cabin. A modular prefabricated cabin.