Method and system for judging abnormal state of oil-immersed transformer

The invention discloses a method and system for judging the abnormal state of an oil-immersed transformer, and belongs to the technical field of state evaluation of oil-immersed transformers. The method comprises the following steps: acquiring operation data of the oil-immersed transformer in real time; inputting the operation data into a pre-established state evaluation model for state evaluation of the oil-immersed transformer, and judging a state evaluation result of the oil-immersed transformer according to the operation data based on the state evaluation model; and judging whether the oil-immersed transformer is in an abnormal state or not according to the state evaluation result. The abnormal state of the oil-immersed transformer can be monitored in real time by acquiring the operation data of the oil-immersed transformer in real time, so that the operation safety of the oil-immersed transformer is improved, and the safety of a power grid where the oil-immersed transformer is located is improved. 本发明公开了