配网电缆接头多物理场仿真分析  

Multi-physical Field Simulation Analysis on Cable Joints in Distribution Grids

作　　者：蔡俊熠 徐伟伦 卞正达 CAI Junyi;XU Weilun;BIAN Zhengda(Suzhou Power Supply Company,Suzhou 215004;Nanjing Power Supply Company,Nanjing 210019)

机构地区：[1]国网江苏省电力有限公司苏州供电分公司,江苏苏州215004 [2]国网江苏省电力有限公司南京供电分公司,江苏南京210019

出　　处：《电力安全技术》2024年第8期45-51,共7页Electric Safety Technology

摘　　要：10 kV交联聚乙烯配网电缆是目前城市配网输电线路中的主流,但由于安装环境复杂恶劣、施工工艺水平参差不齐等原因电缆接头安装时易产生缺陷,进而导致电缆事故频发。为了有效预判电缆接头运行状况,避免缺陷引发事故,对电缆接头进行建模和多物理场分析并根据分析结果评估电缆接头内部缺陷危险程度,并通过10 kV XLPE配网电缆多物理场测量试验验证仿真计算结果。10 kV XLPE cables used in distribution grids is currently the mainstream transmission lines of urban distribution grids,however,defects are prone to occur in such cable joints due to complex and harsh installation environment and the varying levels of engineering techniques,and so on,which in turn leads to frequent cable accidents.In order to effectively predict the operating conditions of cable joints and avoid accidents caused by the defects,such cable joints are modeled for a multi-physical field analysis to assess the risk levels of defects inside cable joints based on the analysis results,and verify the simulation results based on multi-physical field measurement experiments on 10 kV XLPE cables used in distribution grids.

关 键 词：电缆接头 内部缺陷 仿真分析 界面应力 

分 类 号：TM726.4[电气工程—电力系统及自动化]