Fire early warning method based on physical state of transformer of transformer substation

The invention relates to the technical field of fire early warning, and particularly discloses a transformer substation transformer physical state-based fire early warning method, which comprises the steps of transformer structure anomaly detection, transformer insulating oil anomaly detection, transformer potential risk assessment, working environment interference condition detection and potential fire risk assessment feedback. According to the invention, the physical state of the transformer is detected in real time, potential problems and abnormities are found in time, and the fire risk is warned in advance according to the detected related data of the transformer, so that the fire probability is reduced, and serious loss caused by the fire is avoided. Moreover, the physical state of the transformer is detected in real time, so that the transformer can be maintained in time, the service life of the transformer is prolonged, the working environment of the transformer is detected, interference of severe envi