Analysis of Partial Discharge Fault Diagnosis Technology for High Voltage Switch Cabinet

Abstract In order to enhance the security and reliability of high-voltage switch cabinet operation, the diagnosis of internal discharge defects in high-voltage switch cabinet equipment is analyzed in this paper. Firstly, a variety of partial discharge live detection technologies such as three-dimensional voiceprint monitoring technology and three-dimensional ultraviolet technology for partial discharge are studied. Then, a variety of partial discharge live detection technologies are constructed. Finally, the data fusion of the relevant detection data is carried out, and the monitoring results of the equipment’s running state are analyzed. The analysis results show that the data sensitivity and specificity of creepage, non-breakdown discharge, and breakdown discharge at different output values in the application of various partial discharge detection technologies have obvious effects. It is believed that the technology constructed in this study can improve detection accuracy and equipment safety. It provides important parameters and a basis for the maintenance of high-voltage switch cabinets. It is of extremely good importance to take partial live detection measures for the operating switch cabinet and provides a reference for field application.