The skid-mounted substation is an outdoor complete set of substations that are pre-manufactured and assembled in the factory, including auxiliary equipment such as transformers, high-voltage switches, low-voltage switches, power transformers, etc., and configured in a common enclosure. It has the advantages of strong completeness, easy installation, short construction period, low operating cost, high structural strength, and strong anti-corrosion performance, and is fully suitable for operating environments with harsh natural conditions, such as beaches, grasslands, and deserts, etc.