The invention relates to a 220 kV
gas insulation transformer, and belongs to the technical field of transformers. According to the technical scheme, the 220 kV
gas insulation transformer comprises a box, SF6 gas, an SF6 gas sleeve, a cable box, a
transformer body, a transformer on-load
voltage regulation switch, a gas density gauge, a
pressure monitoring device, a sudden pressure
relay, a gas temperature gauge, a winding temperature gauge, a plate radiator, a gas circulation pump, an
airflow indicator, a blowing device and a cooling
system intelligent control box, wherein the SF6 gas, the SF6 gas sleeve and the cable box are used for outgoing of a 220 kV high-
voltage cable, the transformer body comprises an iron core, a coil and a lead, the gas density gauge, the
pressure monitoring device, the sudden pressure
relay, the gas temperature gauge and the winding temperature gauge are used for secondary protection, the plate radiator, the gas circulation pump, the
airflow indicator, the blowing device and the cooling
system intelligent control box are used for cooling the transformer, and an internal insulating and
cooling medium of the transformer is the SF6 gas. Compared with a traditional oil-immersed transformer, the 220 kV
gas insulation transformer has higher
fire resistance, explosion resistance and safety and more complete monitoring and protection configuration, thereby being more suitable for being used in
population concentration places such as city centers.