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http://dx.doi.org/10.5370/KIEE.2016.65.9.1583

Detection and Location of Cable Fault Using Improved SSTDR  

Jeon, Jeong-Chay (Electrical safety Research Institute, Korea Electrical Safety Co.)
Kim, Jae-Jin (Electrical safety Research Institute, Korea Electrical Safety Co.)
Choi, Myeong-Il (Electrical safety Research Institute, Korea Electrical Safety Co.)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.65, no.9, 2016 , pp. 1583-1589 More about this Journal
Abstract
This paper proposes an improved spread spectrum time domain reflectometry (ISSTDR) using time-frequency correlation and reference signal elimination method in order to have more accurate fault determination and location detection than conventional (SSTDR) despite increased signal attenuation due to the long distance to cable fault location. The proposed method has a two-step process: the first step is to detect a peak location of the reference signal using time-frequency correlation analysis, and the second step is to detect a peak location of the correlation coefficient of the reflected signal by removing the reference signal. The proposed method was validated through comparison with existing SSTDR methods in open-and short-circuit fault detection experiments of low voltage power cables. The experimental results showed that the proposed method can detect correlation coefficients at fault locations accurately despite reflected signal attenuation so that cable faults can be detected more accurately and clearly in comparison to existing methods.
Keywords
SSTDR; Cable fault location; Time-frequency correlation; Reference signal elimination;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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