GIS voltage withstanding experiment device

The invention relates to the technical field of GIS tests, in particular to a GIS withstand voltage test device, which is characterized in that a conductive connecting plate, a reciprocating driving mechanism and a converter are arranged in a sealed shell; the front end of the conductive connecting plate is connected with the output end of the reciprocating driving mechanism, and the rear end of the conductive connecting plate is in contact with the high-voltage electric pole; the converter comprises a conversion plate, a wiring contact plate connected with the wiring point and a grounding contact plate connected with the grounding point; the front end of the conductive connecting plate abuts against the rear side of the conversion plate, and a thruster is arranged on the front side of the conversion plate. The conversion board is used for converting connection between the wiring contact board and the grounding contact board. The connection and disconnection between the high-voltage electric pole and the conv