Box-type Substation (commonly referred to as a compact substation or prefabricated substation) is a power distribution device integrating high-voltage switchgear, transformers, and low-voltage switchgear into a single unit. It is widely used in mines, industrial enterprises, newly developed zones, urban areas with limited land resources, large construction sites for temporary power supply, high-rise buildings, residential communities, villas, and scenic areas. Replacing traditional distribution rooms and substations, it has become a modern power distribution solution. Although its adoption in China started relatively late, it is now being widely promoted in urban power grid upgrades and various other applications. With the rapid growth of the power industry, urban expansion, and the continuous development of new industrial zones, box-type substations are expected to have broad market prospects as regional power distribution facilities.