Earth Fault Line Selection Based on Transient Magnetic Field in Non-solidly Earthed Overhead Lines

摘要：

A new approach using magnetic field induction is presented for earth fault line selection in non-solidly earthed overhead lines. Based on the transient protection principle, the device of XJ-100 which has high-Speed data acquisition and wave recording function is used to realize the fault line selection. The paper expatiates several protection principle and introduces the structure，working principle and characteristics of the device. For overhead lines, it is difficult to acquire zero-module current. Then a new approach using magnetic field induction is presented to acquire zero-module dominated fault current signals. The paper proposes to use a cylindrical coil to induct magnetic field to obtain fault current. Experimental results demonstrate the feasibility of this approach

关键词： overhead line single phase earth fault fault line section magnetic field fault current acquisition

作者: SUN Bo XUE Yong-duan XU Bing-yin WANG Tao

作者单位: Shandong University ,Jinan 250061,China Shandong Kehui Electric Co Ltd,Zibo 255087,China Shandong University of Technology,Zibo 255049,China Shandong Kehui Electric Co Ltd,Zibo 255087,China

会议类型: 国际会议

会议名称: 2008 China International Conference on Electricity Distribution (CICED 2008)(2008中国国际供电会议)

会议地点: 广州

会议语种:英文

页码: 1-5

在线出版日期: 2008-12-10（万方平台首次上网日期，不代表论文的发表时间）