YB-12/0.4 box-type substation (high and low voltage pre-installed substation) is a high-voltage switchgear, distribution transformer and low-voltage distribution device, according to a certain wiring scheme arranged into one of the factory prefabricated indoor and outdoor compact distribution equipment, that is, transformer step-down, low-voltage distribution and other functions organically combined together. Installed in a moisture-proof, rust-proof, dust-proof, rat-proof, fireproof, anti-theft, heat insulation, fully enclosed, movable steel structure box, especially suitable for urban network construction and transformation, is a new substation after the rise of civil substations. Box-type substation is suitable for mines, industrial enterprises, oil and gas fields and wind power stations, it replaces the original civil distribution room, distribution power station, and becomes a new complete set of transformer and distribution equipment.
YB series preassembled substation has the characteristics of strong complete set, small size, compact structure, safe and reliable operation, easy maintenance, and mobility, etc. Compared with conventional civil substations, box-type substations with the same capacity usually cover an area of only 1/10 ~ 1/5 of conventional substations, which greatly reduces the design workload and construction amount, and reduces the construction cost.