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June 10, 2026IET conference proceedings.0 citations

Research on fault location in multi-branch distribution lines using spread spectrum time domain reflectometry

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FHFeng HuangQGQing GaoJHJianwu He

Key Points

  • The aim is to develop a method for accurately locating faults in multi-branch distribution lines using time-domain reflectometry techniques.
  • Proposed a single-ended fault location method using improved spectrum time-domain reflectometry.
  • Analyzed self-modulated square waves to calculate fault distances from waveform differences.
  • Used simulations on an IEEE 33-node system to test the method's effectiveness.
  • Accurate fault location achieved under varying transition resistances.
  • Identified fault branches effectively by comparing attenuation factors.
  • Demonstrated method's robustness across different grounding configurations.

Abstract

This paper proposes a single-ended fault location method using improved extended spectrum time-domain reflectometry for multi-branch distribution networks. The method analyses self-modulated square waves to calculate the fault distance from waveform differences, screens intervals via depth-first search, and identifies the fault branch by comparing Prony-fitted attenuation factors. Simulations on an IEEE 33-node system demonstrate accurate localisation under varying transition resistances and grounding configurations.

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Cite This Study

Huang et al. (2026) studied this question.

synapsesocial.com/papers/6a28fe9f6f82f25be989bcc3https://doi.org/10.1049/icp.2026.1257
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