Portable partial discharge acoustic-electric joint detection apparatus for GIS

Provided is a portable partial discharge acoustic-electric joint detection apparatus for a GIS (Gas Insulated Switchgear). The hardware of the apparatus includes a super-speed data processing module, a low-speed data processing module and a control analysis module. The super-speed data processing module comprises an ultrahigh frequency signal processing circuit and a high frequency current processing circuit. The low-speed data processing module comprises an ultrasonic signal processing circuit and a power frequency signal processing circuit. Through synchronous detection for ultrahigh frequency signals, high frequency current signals and supersonic wave signals of partial discharge of the GIS, partial discharge sources can be accurately positioned. The portable partial discharge acoustic-electric joint detection apparatus has the characteristics of high on-site anti-interference capability, highly accurate partial discharge detection, and simple and highly efficient measuring operation.