Structure-variable gas insulation composite apparatus partial discharge experiment device and method thereof

The invention discloses a partial discharging experiment device of a structure-variable combined electrical gas-insulated apparatus and a method thereof, and belongs to the technical field of insulation online detection of electrical equipment. The partial discharging experiment device mainly comprises a GIS simulating element, a digital storage oscillograph and a signal generator, etc. By utilizing the device, the partial discharging experiment method carries out a pressurized experiment so as to collect ultrahigh frequency PD signals, carries out a signal injecting experiment, collects and corrects the ultrahigh frequency PD signals through programs, thus obtaining real waveform of the ultrahigh frequency PD signals. The device can simulate the T-shaped, L-shaped and bar-shaped structures of real GIS equipment. The method can carry out the experiment to the T-shaped, L-shaped or bar-shaped GIS structures by one to four insulated defect models, and the experiment is real, accurate and wide in range. The device and the method can be widely applied to the experimental research of the insulated state online monitoring of GIS equipments in teaching practices, scientific research institutions and equipment manufacturing plants, and the detected PD signals can be used for theoretical analysis and applied research.