To detect the insulation defects existing in the GIS operation process in time

this paper designs a substa-tion GIS partial discharge intelligent inspection and location system based on the substation inspection robot and thelive detection equipment. The GIS partial discharge inspection system acquires the partial discharge signal detectedby the internal UHF sensor through the UHF intelligent detection system

and then communicates with the inspec-tion robot equipped with the collection terminal by wireless communication. Upload to the cloud to achieve long-termtracking of partial discharge signals. The GIS partial discharge location system designs a set of high-precision fastsound and electric joint positioning system through Labview and Matlab

which is based on the GIS cylinder struc-ture

the frequency and speed difference of the acoustoelectric signals

and the wireless communication function ofthe positioning oscilloscope. The experiment demonstrates that the GIS partial discharge inspection and location sys-tem has high detection flexibility and location accuracy

the technique can be applied to the tracking and location ofPD defects inside the electrical equipment during live detection.