摘要
近年来,高压电缆缓冲层烧蚀缺陷导致电缆故障问题频发,如何有效地对缓冲层缺陷进行检测引起了行业内的广泛关注。基于缓冲层缺陷与其相邻层间的密度差异,分别对X射线数字成像技术和计算机断层成像技术开展了检测参数研究,对比分析了两种方法对不同类型缺陷的检出有效性及在不同干扰下的检测效果。结果表明,计算机断层成像技术在检测准确度和抗干扰性优于X射线数字成像技术,但在检测的现场适用性方面有局限。研究给出两种检测技术的最佳检测参数及各自的优缺点,为后续高压电缆的缓冲层缺陷可视化检测提供了有益的参考。
In recent years,the erosion defects of high-voltage cable buffer layers have led to frequent cable faults.How to effectively detect buffer layer defects has attracted widespread attention in the industry.Based on the density difference between buffer layer defects and their adjacent layers,the detection parameters of X-ray digital imaging technology and computer tomography technology were studied,and the effectiveness of the two methods in detecting different types of defects and their detection effects under different interferences were compared and analyzed.The results indicate that computer tomography technology outperforms X-ray digital imaging technology in terms of detection accuracy and anti-interference,but is limited in terms of on-site applicability for detection.The optimal detection parameters and their respective advantages and disadvantages of the two detection techniques provided in the study provide useful references for the subsequent visualization detection of buffer layer defects in high-voltage cables.
作者
邱玮
章宇聪
谢亿
曹先慧
李湘珺
胡俊
QIU Wei;ZHANG Yucong;XIE Yi;CAO Xianhui;LI Xiangjun;HU Jun(School of Energy and Power Engineering,Changsha University of Science&Technology,Changsha 410114,China;State Grid Hunan Electric Power Corporation Research Institute,Changsha 410007,China;Hunan Xiangdian Boiler Pressure Vessel Testing Center Co.,Ltd.,Changsha 410208,China)
出处
《电气应用》
2024年第8期37-43,共7页
Electrotechnical Application
基金
国网湖南省电力有限公司资助项目(B316A520000T)
国家级大学生创新创业训练计划项目(202210536024)。
