故障电缆附件状态评价手段的分析研究

Analysis and Research on the State Evaluation Method of Suspected Faulty Cable Accessories

对于通过局放测试等手段发现故障的电缆附件,采取X光照射、CT断层扫描、耐压同步开展局放检测等手段从不同方面对故障附件进行状态分析。分析总结几种状态评价手段的原理和特征,并结合实际作业经验,就几种手段对于不同种类、不同故障的附件在适用性方面的差异进行分析归纳。将多种状态评价手段结合应用,有助于准确判定附件状态,指导附件生产、安装工作。

For the cable accessories which are found fault by PD test and other means,X-ray irradiation,CT tomography and withstand voltage test synchronized with the partial discharge detection and other means are taken to analysis the status of the faulty accessories from different aspects.The principle and characteristics of several state evaluation methods are analyzed and summarized.And combined with the actual work experience,several methods for the analysis of the differences in the applicability of different types and different faults of accessories are summarized.Combining the application of various state evaluation methods,it is helpful to accurately determine the state of accessories,and guide the production and installation of accessories.