The perspective detection of the X-ray digital radiography for the electrical equipment

Abstract

The manufacture and installation factor is quite large occupied in the induced factor of electrical equipment insulation defects. However, the nowadays technology methods of the power system, such as ultrasonic, partial discharge, which the abnormities can be found, but the detection data are not visual, uncertainty is existed in the results decision and blindness has in the maintenance strategy. Aiming at the above shortcoming, in this paper, it is proposed the utilization X-ray digital radiography (DR) technology to detect the power facilities. In order to know the influence of electrical facilities insulation medium, the research is done by the highest energy of the X-ray, and is determined the application range of X-ray DR system. Determining the X-ray DR system application scope in the power equipment, the GIS typical defects are simulated and visualized detection. After the X-ray DR system is utilized to detect the facilities in the power production field. The experimental results demonstrate that the X-ray DR detecting system does not any influence for the solid and SF6 gas of the insulation medium, and the insulation oil has influence by the X-ray long time irradiation. The power equipment is visual detected by the X-ray digital radiography system without power cut and disintegration. Thus, the X-ray digital radiography system is used to detect the power facilities, which is feasible, safe and effect.