220kV高压电缆户外终端故障分析及建议  

Analysis and Suggestions on Outdoor Terminal Faults of 220 kV High-voltage Cables

作　　者：张佳菁 ZHANG Jiajing(State Grid Taiyuan Power Supply Company,Taiyuan,Shanxi 030001,China)

机构地区：[1]国网太原供电公司,山西太原030001

出　　处：《山西电力》2025年第1期42-45,共4页Shanxi Electric Power

摘　　要：输电线路中,某220kV高压电缆户外终端发生了击穿故障,为了解故障的原因,解体后,通过对高压电缆户外终端击穿部位及附近电缆的外观检查、绝缘直径测量、故障点位置测量、施工尺寸校核、硅油试验以及对绝缘表面存在的缝隙仿真分析,明晰了高压电缆户外终端击穿故障的原因,提出了防范电缆终端故障的措施和建议,为电力系统安全事故的解决提供了必要的参考。In the transmission line,a 220 kV high-voltage cable outdoor terminal breakdown failure occurred.In order to understand the cause of the failure,disintegration is carried out.Through the appearance inspection,insulation diameter measurement,fault point location measurement,construction size verification,silicone oil test and simulation analysis of the gap on the insulation surface of the outdoor terminal breakdown site of the high-voltage cable and the nearby cable,the reasons of breakdown failure of outdoor terminal of high-voltage cable are clarified,measures and suggestions to prevent cable terminal failure are put forward,which provides necessary reference for dealing with safety accidents of power system.

关 键 词：高压电缆 户外终端 击穿部位 仿真分析 

分 类 号：TM75[电气工程—电力系统及自动化]