摘要
建立电缆中间接头三维有限元模型,分析电缆中间接头存在胶带漏用、误用及主绝缘杂质缺陷时的电场分布规律。结果表明:漏用半导胶带、误用绝缘胶带时,硅橡胶与连接管间存在的空气及绝缘胶带会导致该处电场增大;接头混入沙粒杂质,杂质在电缆外半导倒角处至应力锥倒角处电场均畸变恶劣。
In this paper,a three-dimensional finite element model of cable intermediate joint is established to analyze the electric field distribution of cable intermediate joint when there are adhesive tape leakage,misuse and main insulation impurity defects.The results show that the air and the insulating tape between the silicone rubber and the connecting pipe will increase the electric field when the semi-conducting tape is omitted or the insulating tape is misused.The joint is mixed with sand impurities,which distort the electric field from the cable outer half conductor chamfer to the stress cone chamfer.
作者
赵国伟
赵锐
王磊
胡昌龙
张翔
ZHAO Guowei;ZHAO Rui;WANG Lei;HU Changlong;ZHANG Xiang(Datong Power Supply Company of State Grid Shanxi Electric Power Company,Shanxi Datong 037000,China)
出处
《电工材料》
CAS
2021年第6期38-40,共3页
Electrical Engineering Materials
关键词
中间接头
典型缺陷
电场分布
有限元
intermediate joint
typical defects
electric field distribution
the finite element
