Impedance-based method of transverse fault location in medium voltage cables

Bugajska, Aneta

doi:10.1063/1.5056266

Cited by 3 publications

(5 citation statements)

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“…The parameters per unit length of such a line are resistance R0, inductance L0, conductance G0, and capacitance C0. The wave parameters are characteristic impedance Zc propagation coefficient  [11][12][13][14]28]. In this paper, the line of l length is divided into two parts: from the point R to the fault point (x) and from that point to the S point (l-x).…”

Section: Mathematical Model Of a Coaxial Cable With Transverse Faultmentioning

confidence: 99%

“…The expanded uncertainty was calculated for a confidence level of p=0.95 [38]. gives an example of the results of determining the distance to the fault location and the value of the transverse impedance of the fault for CABLE 1 and the assumed distance to the fault location x = 5.0 m, while in tables 8 -12 for the assumed distance to the fault location x = 10.0 m. For the distance to fault location the real part of the solution was considered and the percent error in the calculation of the distance to fault location was obtained from the formula [11,12]…”

Section: The Experimental Verification Of the Short Circuit Short Cir...mentioning

confidence: 99%

“…The method presented in the article was compared with the impedance methods: open circuit-open circuit [38] and open circuit -short circuit [11] Figure 9 shows a graphical interpretation of the results presented in Tables 28 -32. Figure 10 shows a graphical interpretation of the results presented in Tables 33 -37.…”

Section: The Experimental Verification Of the Open Circuit Open Circu...mentioning

confidence: 99%

“…Despite the existence of new generations 2 VOLUME XX, 2022 of equipment, cable fault location is still both art and technology. In order to locate faults effectively, apart from appropriate equipment, vast experience is also needed, as well as extensive knowledge, constantly enriched with new theoretical research, computer simulations and experimental verifications [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. When it comes to the initial fault localization, we encounter methods that measure voltage and current at one or both ends of the cable [15,16].…”

Section: Introductionmentioning

confidence: 99%

“…When it comes to the initial fault localization, we encounter methods that measure voltage and current at one or both ends of the cable [15,16]. Moreover, there are impedance methods that measure input impedance in the open state or a short circuit, at on one or both sides of the cable [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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Impedance-Based Short Circuit—Short Circuit Fault Location Method in Coaxial Cables

Bugajska,

Desaniuk

2023

IEEE Access

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The paper presents the results of the assessment and verification of a non-destructive method of fault location in coaxial cables with a local weakening of insulation. The essence of the method is to measure the input impedance of the cable in a short circuit at both ends and, based on obtained values, to determine the transverse impedance of the fault and the distance to the fault location. For the RG59 Cable with a length of 50.0 m, with the assumed distance to the fault location of 5.0 m, for the short circuit-short circuit method, the error in determining the fault location is from 0.0 m to 1.8 m, for open circuit-open circuit from 0.1 m to 0.2 m and open circuit-short circuit to 0.2 m. For the RG59 Cable at the actual distance to the fault location of 10.0 m, for the short circuit-short circuit method, the error in determining the fault location is from 0.0 m to 0.7 m, for open circuit-open circuit from 0.0 m to 0.1 m and open circuit-short circuit from 0.2 m to 0.7 m. For the RF-7 Cable with a length of 100.0 m, with the assumed distance to the fault location of 10.0 m, for the short circuit-short circuit method, the error in determining the fault location is from 0.7 m to 1.8 m, for open circuit-open circuit from 0.0 m to 0.7 m and open circuit-short circuit 0.2 m to 2.3 m. For the RF-7 Cable with the assumed distance to the fault location of 20.0 m, for the short circuit-short circuit method, the error in determining the fault location is from 0.1 m to 1.2 m, for open circuit-open circuit method from 0.1 m to 0.3 m and open circuit-short circuit method from 0.1 m to 0.7 m.

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