| Title |
Fault Detection of Low Voltage Cable using Time-Frequency Correlation in SSTDR |
| Authors |
전정채(Jeon, Jeong-Chay) ; 김택희(Kim, Taek-Hee) ; 유재근(Yoo, Jae-Geun) |
| DOI |
https://doi.org/10.5370/KIEE.2015.64.3.498 |
| Keywords |
Cable fault ; Location ; Time-frequency correlation ; SSTDR |
| Abstract |
This paper proposed an Spread Spectrum Time Domain Reflectometry (SSTDR) using time-frequency correlation analysis in order to have more accurate fault determination and location detection than classical SSTDR despite increased signal attenuation due to the long distance to cable fault location. The proposed method was validated through comparison with classical 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. |