| Abstract:Aiming at the problem of partial discharge in high-voltage switchgear, a partial discharge detection method for 10 kV switchgear was proposed, and a complete system for partial discharge detection in switchgear was designed. In the scheme designed, the monitoring device is used to detect the switchgear on-site, and the stereo space is transformed in real time by an industrial CCD camera, so that the video and image acquisition of the switchgear can be captured 360 ° without dead angles. The sub-frame four-frame difference algorithm calculates and analyzes the collected video and images. Then, according to the abnormal data in the switch cabinet, different detection units are selected, such as infrared detection unit, ultrasonic detection unit and UHF detection unit, so as to achieve high-precision, real-time detection of partial discharge in the switch cabinet. Through experiments, the technical scheme designed has higher detection accuracy, which greatly improves the safety of the equipment. |
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