X射线数字成像在GIS装配检测中的应用  

Application of X-ray digital imaging technology on the assembly test of GIS

作　　者：刘荣海 耿磊昭 唐法庆 杨迎春 郑欣 LIU Ronghai;GENG Leizhao;TANG Faqing;YANG Yingchun;ZHENG Xin(Electricity Science Research Institute, Yunnan Power Grid Co., Ltd, Kunming 650217;Department of Mechanical Engineering, North China Electric Power University, Baoding,071003,China)

机构地区：[1]云南电网有限责任公司电力科学研究院,昆明650217 [2]华北电力大学机械工程系,河北保定071003

出　　处：《云南电力技术》2018年第1期29-31,共3页Yunnan Electric Power

摘　　要：GIS设备导体连接触头的间隙过大容易引发故障。在SF_6气体压力下,GIS设备壳体在安装过程中容易发生偏移,导致导体触头之间的间隙发生变化。本文针对某新建220 kV变电站出现的GIS设备壳体偏移问题,利用X射线数字成像技术对壳体内部进行透视检测。通过X射线影像分析了壳体偏移对母线导体连接触头间隙的影响,检测结果表明:壳体位移量在波纹管的作用下均匀分布于各个触头连接处,使触头间隙尺寸满足设计要求。The larger clearance of GIS contact may easily cause failure. Under the pressure of SF6 gas, GIS equipment shell will prone to oflset during the installation process. The oflset will change the clearance of the contact. Based on the GIS equipment shell oflset question of an new 220 kV substation, this paper detect the internal of GIS equipment shell in the way of X-ray digital imaging technology. Through the X-ray picture this paper analysis the influence that shell offset effect on the clearance of contact. Test results show that shell oflset is uniformly distributed in the contact joints on the eflect of bellows, so the clearance is meet the design requirement.

关 键 词：X射线数字成像技术 GIS 波纹管 触头间隙 

分 类 号：TM930.1[电气工程—电力电子与电力传动]