The box-type substation is also called prefabricated substation or prefabricated substation. It is a kind of high-voltage switchgear, distribution transformer and low-voltage power distribution device. It is a factory-prefabricated indoor and outdoor compact power distribution equipment arranged according to a certain wiring plan. It organically combines functions such as transformer step-down and low-voltage power distribution. At the same time, it is installed in a moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, anti-theft, heat-insulating, fully enclosed, and movable steel structure box. It is especially suitable for urban network construction and transformation. It is a rising one after civil construction substations. A brand new substation. The box-type substation is suitable for mines, factories, enterprises, oil and gas fields and wind power stations. It replaces the original civil power distribution rooms and power distribution stations and becomes a new type of complete set of power distribution devices.