Method and system for identifying reason of heating defect of transformer sleeve pile head, and medium

The invention discloses a transformer casing pipe pile head heating defect reason identification method and system and a medium. The method comprises the steps that an infrared thermal imaging spectrum of a transformer casing pipe pile head is acquired; determining a temperature distribution type set contained in the transformer sleeve pile head according to the infrared thermal imaging spectrum; determining a heating defect type of the transformer sleeve pile head according to a predetermined corresponding relation between the temperature distribution type set and the heating defect type; in addition, three-dimensional force-electromagnetic-thermal coupling pile head temperature rise simulation is carried out to determine the corresponding relation between the temperature distribution type set and the heating defect type. According to the method, the temperature distribution type set contained in the transformer sleeve pile head is determined by combining the infrared thermal imaging spectrum according to th