Line loss anomaly positioning method based on data refined measurement comparison

The invention discloses a line loss abnormity positioning method based on data refined measurement and comparison, and belongs to the technical field of line loss, and the method comprises the steps: S1, obtaining the power supply current, voltage and power of a transformer area and the power supply position of the transformer area in real time through a sensor and a GPS positioner, carrying out the positioning marking of the power supply position of the transformer area, and determining the related data of the line loss of the transformer area; s2, processing the transformer area line loss related data, and determining transformer area line loss characterization data; s3, fine measurement and comparison are carried out on the transformer area line loss characterization data, and a line loss measurement and comparison result is determined; and S4, carrying out correlation analysis on a line loss measurement comparison result, finding out a corresponding positioning mark, and rapidly determining a line loss ab