Automatic fire extinguishing device for transformer substation

The invention discloses an automatic fire extinguishing device for a transformer substation, and relates to the technical field of transformer substations, the automatic fire extinguishing device for the transformer substation comprises: a housing, which is internally provided with a high-pressure dry powder storage chamber, and the bottom opening of the high-pressure dry powder storage chamber is movably provided with a sealing mechanism; the connecting frame group is used for connecting the wall surface and the housing; the heat-sensitive temperature sensor is detachably assembled in the connecting frame group, and the adjacent fire extinguishing devices are connected in series by the heat-sensitive temperature sensor through a heat-sensitive wire; according to the technical requirements, a sealing mechanism is designed below a housing, a high-pressure air pump is used for pressurizing a high-pressure dry powder storage chamber, when a thermosensitive temperature sensor detects that the temperature exceeds