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http://dx.doi.org/10.5515/KJKIEES.2013.24.3.310

Measurement of the Propagation Constant of a Power Cable Using a Two-Port Time-Domain Reflectometry Technique  

Shin, Dong Sik (Department of Electrical Engineering, Pohang University of Science and Technology)
Cho, Hyeon Dong (Department of Electrical Engineering, Pohang University of Science and Technology)
Park, Wee Sang (Department of Electrical Engineering, Pohang University of Science and Technology)
Yi, Sang-Hwa (Korea Electrotechnology Research Institute)
Sun, Jong-Ho (Korea Electrotechnology Research Institute)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.24, no.3, 2013 , pp. 310-315 More about this Journal
Abstract
This paper presents a two-port time-domain reflectometry(TDR) measurement technique for extracting the complex propagation constant of a cross-linked polyethylene(XLPE) cable. For the extraction, a short pulse transmitted through the cable is measured in the time domain and analyzed in the frequency domain. The propagation constant of a 22.9 kV XLPE cable with a conductor area of 325 $mm^2$ is extracted up to a frequency of approximately 2.14 GHz. The $S_{21}$ measured using a network analyzer and the two-port TDR technique are compared for verification. As a result compared with previous TDR method, the upper possible frequency limit for extracting the propagation constant increases and the measurement error decreases.
Keywords
Time Domain Reflectometry; XLPE Cable; Propagation Constant;
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