Power distribution network high-resistance grounding fault detection method, device, equipment and medium

The invention discloses a power distribution network high-resistance grounding fault detection method and device, equipment and a medium. The method comprises the following steps: performing fault detection on m1 groups of collected zero-sequence current signals at an interval of n1 cycles through a preset high-resistance grounding fault classification model to obtain a first fault detection result; if the number of high-resistance grounding faults in the first fault detection result exceeds a first preset threshold value, collecting m2 groups of zero-sequence current signals at an interval of n2 cycles, and performing fault detection on the m2 groups of zero-sequence current signals through a preset high-resistance grounding fault classification model to obtain a second fault detection result, judging whether the number of high-resistance grounding faults in the second fault detection result exceeds a second preset threshold value or not, if yes, indicating that the high-resistance grounding faults occur in