As a new - generation compact power equipment, the prefabricated substation breaks the limitations of the scattered layout of traditional power distribution facilities. It highly integrates three functional modules of high - voltage power reception, transformer voltage reduction, and low - voltage power distribution into a prefabricated steel structure box, achieving an integrated "three - in - one" design. The box is made of high - quality cold - rolled steel plates or stainless steel, treated with special anti - corrosion and anti - rust processes. Combined with a double - layer heat - insulation structure and waterproof sealing technology, it can not only withstand harsh weather such as heavy rain, sandstorms, and severe cold but also effectively reduce the operating temperature of internal equipment, extending its service life.​

In terms of functional configuration, the high - voltage switchgear of the prefabricated substation is equipped with vacuum circuit breakers or SF6 load switches, which have fast opening and closing and short - circuit protection functions, effectively ensuring the safety of the power system. The transformer part uses low - loss silicon steel sheets and high - purity copper windings, equipped with an intelligent temperature control system that can monitor the temperature in real - time and automatically adjust heat dissipation, ensuring efficient and stable operation. The low - voltage distribution device integrates intelligent electricity meters, molded - case circuit breakers, surge protectors, and other equipment, supporting remote meter reading, fault early warning, and power quality monitoring, realizing intelligent management of power distribution.​

The prefabricated substation has significant advantages in installation and operation and maintenance. Its factory prefabrication production mode greatly reduces on - site construction volume. Only foundation pouring and cable connection are required, and it can be put into use in a short time. Compared with traditional power distribution facilities, the installation cycle is shortened by more than 60%. At the same time, the internal modular layout of the box makes each functional unit independently separated. During maintenance and repair, separate isolation operations can be carried out, reducing operation and maintenance risks. Combined with Internet of Things technology, through built - in sensors and communication modules, operation and maintenance personnel can remotely monitor the operating status of equipment in real - time and handle abnormal situations in a timely manner, realizing intelligent operation and maintenance management and effectively reducing labor and time costs.​

With its flexible and efficient characteristics, the prefabricated substation plays an important role in many fields. In urban power grid renovation, it can quickly supplement power distribution capacity and optimize the power layout. In industrial parks, it can customize power solutions for enterprises to meet different production power demands. In temporary power supply scenarios such as scenic spots and construction sites, it is easy to move and reuse, providing convenient power support. In addition, in the field of new energy access, such as photovoltaic power plants and wind farms, the prefabricated substation can achieve efficient power conversion and stable power transmission, facilitating the grid connection of clean energy.​