Box-type substation is widely used in engineering construction field. In the construction of residential areas, it can be compact installation, space saving, reliable power supply for residents, to meet the daily life of residents, such as lighting, household appliances and so on. In the construction of industrial parks, power supply for factory workshops, office buildings, etc., and its flexible configuration can adapt to the power needs of different enterprises and equipment loads. For commercial buildings, such as shopping malls and hotels, box-type substations can ensure stable power and maintain the normal operation of lighting systems, elevator systems, air conditioning systems and other electrical equipment.