Automatic fire extinguishing device and method for switch cabinet and high-voltage chamber

The invention relates to the field of transformer substation switch cabinet and high-voltage chamber fire fighting, and discloses a switch cabinet and high-voltage chamber automatic fire extinguishing device and method.The switch cabinet and high-voltage chamber automatic fire extinguishing device comprises main equipment and control equipment, and the main equipment comprises a gas fire extinguishing system and a high-voltage chamber electric opening and closing door and window; the gas fire extinguishing system comprises a main storage tank, a main storage tank electromagnetic valve, a main storage tank density relay, an auxiliary storage tank, an auxiliary storage tank electromagnetic valve, an auxiliary storage tank density relay, a pressure reducing valve, an air pump, an air pump check valve, a main valve, an emergency stop electromagnetic valve, a switch cabinet hand valve, a high-pressure chamber hand valve, a plurality of electric adjusting valves, a plurality of check valves, a plurality of hard gas