On-site rapid detection and judgment device for gas in main transformer fault oil and detection method of on-site rapid detection and judgment device

The invention relates to the technical field of power system fault detection, and discloses an on-site rapid detection and judgment device for gas in main transformer fault oil and a detection method of the on-site rapid detection and judgment device. The on-site rapid detection and judgment device comprises a device controller, a miniature pressurizing gas pump, a miniature vacuum pump, an oil sample injector, a centrifugal rapid degassing circulation assembly and a gas detection assembly. The device controller is in electrical communication connection with the miniature pressurizing gas pump, the miniature vacuum pump, the centrifugal rapid degassing circulation assembly and the gas detection assembly, and the miniature pressurizing gas pump, the miniature vacuum pump, the oil sample injector and the gas detection assembly are all connected with the centrifugal rapid degassing circulation assembly in a pipeline connection mode. Detection on an oil sample in the main transformer with the sudden fault and det