Arc suppression coil single-phase grounding power distribution network fault diagnosis method and system

The invention discloses an arc suppression coil single-phase grounding power distribution network fault diagnosis method, and relates to the technical field of power fault diagnosis, and the method comprises the steps: collecting and recording the circuit data of a power distribution network; obtaining power distribution network fault information; preprocessing the obtained power distribution network information to obtain a prototype of waveform data; and judging a single grounding fault type based on the power distribution network model. Waveform data in a power distribution network fault state is collected through a plurality of modules for analysis, the data is preprocessed to obtain a prototype of the waveform data, and the type of the power distribution network fault is judged. According to the invention, rapid and accurate grounding fault diagnosis information is provided for distribution network scheduling and operation and maintenance personnel, the fault removal efficiency is improved, and thus the r