YB□ Series Prefabricated Substation is a compact complete power distribution device that combines high-voltage electrical equipment, transformers, and low-voltage electrical equipment, commonly known as European-style compact substation. It is used in urban high-rise buildings, urban and rural construction, residential communities, high-tech development zones, small and medium-sized factories, mines, oil fields, and temporary construction power supply sites, serving as power receiving and distribution equipment in power distribution systems.

The YB□ Series Prefabricated Substation features strong completeness, small size, compact structure, safe and reliable operation, convenient maintenance, and mobility. Compared with conventional civil substations, a box-type substation of the same capacity typically occupies only 1/8 to 1/5 of the area of a conventional substation, greatly reducing design workload and construction costs. In power distribution systems, it can be used for ring network distribution systems, dual power supply systems, or radial terminal distribution systems. It is currently a new type of complete equipment for urban and rural substation construction and renovation.

The YB□ Series Prefabricated Substation complies with SD320-1992 "Technical Specifications for Box-Type Substations" and GB/T17467-2010 "High-voltage/Low-voltage Prefabricated Substations". The enclosure material can be selected according to user requirements, including non-metallic materials, composite panels, or steel plates.