A method for identifying familial defects in relay protection

The extraction of familial defects in relay protection equipment in this article plays an important role in identifying common safety hazards in the safe operation of the power grid. Starting from the defect characteristics of historical defect cases, this article extracts the defect characteristics of various types of relay protection equipment on site, forming a relay protection defect feature library, which helps to achieve precise characterization of different characteristics of relay protection defects. Based on this, a logic for identifying family defects in relay protection is proposed to identify family defects in relay protection and enhance the support level for the safe operation of the power grid.