Research on Simulation Methods of Electric Field Intensity on Surface of 10 kV Cable Joint

• 作者: Binxian Lu Gang Du Haiming Li Jian Zhang Jun Xiong Lei Liao Mingyan Wu Ruxin Zhang Wenli Cheng Wenpei Jin Xueyou Huang Zheng Wu
• 来源期刊: 能源与动力工程(英文)
• 学科: 工学
• 关键词: Cable JOINTS Electric FIELD INTENSITY EQUIVALENT CIRCUIT METHOD Field-Circuit Coupling METHOD Finite Element Simulation Software
• 年，卷（期）: 2020,（4）
• 页码范围: 37-45
• 页数: 9页
• 分类号: TN9

摘要

The electric field intensity (EFI) is important characteristic quantity for evaluating the internal insulation state of cable joints. Based on finite element method, this paper proposes two EFI research methods, field-circuit coupling method and equivalent circuit method. The average EFI of the inner surface of the outer semi-conducting shield can be calculated from the current in the measuring circuit. The relative error between these two methods is about 15%, which roughly proves the consistency of the two methods. Further practical application research enables online monitoring of cable joints.