Box type substation is a high voltage switchgear, distribution transformer and low voltage power distribution device, according to a certain connection scheme row into one factory prefabricated indoor and outdoor compact type distribution equipment is a high voltage power, a step-down transformer, low-voltage power distribution and function are organically combined together, the installation in a moisture, rust, dust prevention, rat, fire, theft, heat insulation, fully enclosed, mobile steel structure box body, mechanical and electrical integration, closed operation, especially for city network construction and reform, is the second substation construction after the rise of a new substation. The box type transformer substation is suitable for the mine, the factory enterprise, the oil and gas field and the wind power station, it has replaced the original construction distribution room, the distribution station, becomes the new complete set of power distribution equipment. For box type substation residential district, city public, bustling city, construction of power supply etc.