Performance detecting system and method thereof of gas insulated substation (GIS) partial discharge on-line monitoring device

The invention relates to a performance detecting system and a method thereof of a gas insulated substation (GIS) partial discharge on-line monitoring device. Through a partial discharge measuring device and the GIS partial discharge on-line monitoring device connected to the exterior of a GIS or interior of the GIS of a GIS pipeline, the partial discharge measuring device and the GIS partial discharge on-line monitoring device are compared with each other to detect the performance of the GIS partial discharge on-line monitoring device. The GIS pipeline of the performance detecting system of the GIS partial discharge on-line monitoring device can carry out testing to different on-line monitoring devices, and at the same time, the pipeline with an independent structure is convenient to dismantle and can simulate different insulation defects. Meanwhile, the invention further discloses the method using the performance detecting system to detect the on-line monitoring device.