The Hua-style box substation combines the advantages of European-style box substation and American-style box substation, and is composed of four parts: high-voltage switchgear (or switch directly installed in the box body), low-voltage distribution panel, transformer and shell. The transformer adopts oil-immersed transformer, and the radiator is in direct contact with the outside air. The high and low voltage boxes adopt a good thermal insulation and ventilation structure, with beautiful and generous appearance. The box can be equipped with temperature-controlled forced ventilation device and automatic temperature control device. Each independent unit is equipped with a complete control, protection live display and lighting system.

◎Main features:

■The transformer part is independent of the high and low voltage boxes, and is pre-assembled with the high-voltage switchgear and low-voltage cabinet in the factory

■High and low voltage protection functions are complete, meeting the "five-prevention" requirements

■Used for photovoltaic or wind power generation, the transformer can choose high-capacity products

■The mainstream capacity of photovoltaic Hua substation is mainly 3150kVA, and the capacity of wind power Hua substation is widely distributed from 2200kVA to 7700kVA.