一起110kV电缆中间接头故障分析  

A Case Study of 110kV Cable Intermediate Joint Fault

作　　者：赵常威[1] 李森林[1] 程登峰[1] 杨为[1] 杨海涛[1] 

机构地区：[1]国网安徽省电力公司电力科学研究院,安徽合肥230022

出　　处：《安徽电气工程职业技术学院学报》2017年第1期55-57,共3页Journal of Anhui Electrical Engineering Professional Technique College

摘　　要：文章介绍了一起由红外检测发现的高压电缆中间接头故障案例。通过解体分析,确定了故障原因为电缆接头受潮导致绝缘劣化,长期运行最终产生局部放电烧蚀。最后提出了电缆安装和运维阶段的技术监督措施,为高压电缆接头在电力系统中安全、稳定运行提供保障。This paper describes a fault of the high voltage cable intermediate joint detected by the infrared thermal imager. The teardown analysis has confirmed that the fault was caused by dampness and insula- tion degradation of the cable, which eventually led to partial discharge after long-term running. Several technical supervision measures in installation and operation stages are proposed in the end to ensure the safe and steady running of high voltage cable joints in the power system.

关 键 词：电缆接头 绝缘劣化 局部放电 

分 类 号：TM757.2[电气工程—电力系统及自动化]