Substation transformer operation monitoring method and system

The invention discloses a substation transformer operation monitoring method and system, and belongs to the technical field of substation operation and maintenance. Comprising the steps of obtaining historical operation data of a transformer, performing correlation analysis on the historical operation data, and obtaining correlation factors; determining the anti-interference capability of the corresponding acquisition sensor according to the historical operation data and the corresponding historical environment information; screening operation evaluation indexes of the transformer according to the correlation factors and the anti-interference capability; inputting the operation evaluation index into a trained operation monitoring model for processing, and obtaining an operation fault prediction probability; obtaining weather information corresponding to the operation data, extracting a sudden change factor, and correcting the operation fault prediction probability according to the sudden change factor; and ac