Magnetic Sensor-Based Approach for Overhead Transmission Lines Fault Detection and Location Using Line Fault Current

Year 2025, Volume: 5 Issue: 2, 132 - 141, 16.06.2025

Patrick Nyaaba Ayambire

https://doi.org/10.5152/tepes.2025.24035

https://izlik.org/JA42BP84LY

Abstract

This paper proposes a magnetic sensor-based approach to overhead transmission line fault detection and location. The proposed approach utilizes magnetic flux density measurements obtained using an array of magnetic sensors installed at the ends of a transmission line to measure currenttraveling waves. These measurements are analyzed to detect and locate faults. The scheme was implemented and tested using a transmission line modeled in Electrical Transient Analyzer Program and MATLAB/Simulink. The experimental evaluation validates the high efficiency of the scheme in measuring current traveling waves and accurately detecting and locating faults. Comparative analysis with a generalized traveling wave-based approach highlighted the validity and efficiency of the proposed approach. Across all test scenarios, the method delivered exceptional results, achieving an average percentage error of only 0.02445% in fault locations for various fault types.

Keywords

Current traveling wave fault location , differentiator smoother , magnetic sensors , overhead transmission lines

Thanks

The author would like to declare that the support of Anastasia Amissah, a BSc. Electrical and Electronics Engineering student of the Department of Electrical and Electronics Engineering at AAMUSTED, for proofreading the manuscript is greatly appreciated.

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