一起110 kV电缆充油式户外终端发热缺陷分析及处理  

Analysis and Treatment of Heating Defects in a 110 kV Cable Oil-filled Outdoor Terminal

作　　者：李昆晟 熊刚 高超 宋伟 任昌智 余力 LI Kunsheng;XIONG Gang;GAO Chao;SONG Wei;REN Changzhi;YU Li(State Grid Chongqing Electric Power Company Ultra High Voltage Branch,Chongqing 400039,China)

机构地区：[1]国网重庆市电力公司超高压分公司,重庆400039

出　　处：《电工技术》2024年第1期87-89,94,共4页Electric Engineering

摘　　要：一般电缆充油式户外终端均位于电缆终端杆(塔)上,运行条件复杂、缺陷不易发现。发热缺陷作为电缆充油式户外终端常见缺陷之一,已有多起报道。目前红外测温技术的推广普及,可显著提升该缺陷的发现率。以一起110 kV电缆充油式户外终端发热缺陷为例,介绍了红外测温、高频局放检测、X光检测等技术的应用情况,通过对该缺陷的解剖,分析了电缆终端发热的原因,并提出了相应建议。Outdoor oil-filled cable terminals are located generally on cable terminal poles(towers),with complex operating conditions and imperceptible defects.As one of the common defects in oil-filled cable outdoor terminals,several heating defects have been reported in China.Promotion and popularization of infrared temperature measurement technology can significantly improve the detection rate of such defects.This article takes an example of a heating defect in an oil-filled outdoor terminal of a 110 kV cable,and summarizes the application of technologies such as infrared temperature measurement,high-frequency partial discharge detection,and X-ray detection.By dissecting the defect,the reason for the heating of the cable terminal is analyzed,and corresponding suggestions are proposed.

关 键 词：电缆终端 发热 红外测温 局放检测 绝缘油受潮 

分 类 号：TM854[电气工程—高电压与绝缘技术]