Pressure-controllable inorganic powder dielectric breakdown field strength test system and test method

The invention relates to a pressure-controllable inorganic powder dielectric breakdown field strength test system and test method, and belongs to the technical field of electrical performance test. In order to solve the problem that an existing dielectric breakdown field strength testing device is not suitable for research on electrical breakdown characteristics of an inorganic powder medium, the invention provides a pressure-controllable inorganic powder medium breakdown field strength testing system. Comprising an upper cover, a pressure sensor, a first cushion block, a second cushion block, a standard plate, a high-voltage electrode assembly, a grounding electrode tank and a lower cover which are sequentially arranged from top to bottom, the bottom of the grounding electrode tank is a grounding electrode; a high-voltage electrode and a grounding electrode in the high-voltage electrode assembly form an electrode testing system, and the distance between the high-voltage electrode and the grounding electrode