Prefabricated cabin type substation is composed of prefabricated cabin, secondary equipment screen cabinet (or rack), high-voltage cabinet, cabin auxiliary facilities, etc. It is manufactured, assembled, wired, debugged and transported as a whole to the engineering site on the installation foundation in the factory. The prefabricated cabin and its internal equipment are integrated by the manufacturer, achieving factory processing, reducing on-site secondary wiring, reducing design, construction, and commissioning workload, simplifying maintenance work, shortening construction cycles, and effectively supporting the rapid construction of the power grid. It has the technical characteristics of standardization, modularization, and prefabrication.