Development of a Multiple HFCT-based Reflectometry System for Live Cable Diagnosis

被引：0

作者：

Hong, Chang Hyeon ^{[1
]}

Sim, Yeon-Sub ^{[1
]}

Seong, Hyun-Mo ^{[1
]}

Kwon, Gu-Young ^{[2
]}

Lee, Chun-Kwon ^{[3
]}

Chang, Seung Jin ^{[1
]}

机构：

[1] Hanbat Natl Univ, Dept Elect Engn, Daejeon, South Korea

[2] Dongguk Univ, Dept Smart Informat Technol Engn, Gyeongju, South Korea

[3] Pukyong Natl Univ, Dept Control & Instrumentat Engn, Busan, South Korea

来源：

2024 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, I2MTC 2024 | 2024年

基金：

新加坡国家研究基金会;

关键词：

High-frequency current transformer; signal amplification; time-frequency reflectometry; stepped-frequency waveform reflectometry;

D O I：

10.1109/I2MTC60896.2024.10560641

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

To maintain a reliable power system, it is necessary to assess their live condition or utilize non-destructive diagnostics. Applying the High-Frequency Current Transformer (HFCT) to reflectometry enables a non-destructive testing of target cables and allows for localized fault diagnosis under live conditions without power off. However, cable diagnosis through HFCT is challenging due to significant signal attenuation, dispersion, and nonlinear behavior with respect to frequency. In this paper, we propose a reflectometry system based on multiple HFCT transducers capable of live-wire diagnosis. Multiple HFCT transducers can amplify the signal applied to the target cable, which improves fault detection performance. To select the optimal HFCT installation, two experiments were designed and performance was verified: (1) fault localization, (2) propagation constant estimation.

引用

页数：6

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