Our substation is composed of four parts: high voltage switchgear, low voltage distribution panel, distribution transformer and housing. The high voltage is the air load switch, and the transformer is dry type transformer or oil immersed transformer. The box body adopts a good heat insulation ventilation structure, beautiful appearance and generous, and the box body is equipped with up and down ventilation duct. The temperature rise of the transformer room and the high and low pressure room caused by outdoor isolation can be reduced to the minimum. The cabinet shall be equipped with a temperature-controlled forced ventilation device and an automatic solar temperature control device. Each individual unit is equipped with complete control, protection, live display and lighting systems.