Assessment and Verification of the Impedance-Frequency Method of Transverse Fault Location in Medium Voltage Cables

Bugajska, Aneta; Desaniuk, Tomasz; Madej, Monika; Ozimina, Dariusz

doi:10.1109/access.2021.3061617

Cited by 2 publications

(8 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%

“…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%

“…The article [13] discusses the impedance method consisting in measuring the input impedances at two different frequencies with the open state at the other end of the cable. The proposed solution is based on determining the distance to the fault location as an approximate numerical solution to the equation, |𝑅 𝐹 (𝑖=1) − 𝑅 𝐹 (𝑖=2) | ≤ 𝛿 where 𝛿 -the assumed solution error, 𝑅 𝐹 (𝑖=1) -the failure resistance for the first frequency, 𝑅 𝐹 (𝑖=2) -the failure resistance for the second frequency.…”

Section: Introductionmentioning

confidence: 99%

“…Owing to the insulation class and the voltage of telecommunication cables, the proposed method can be safely used for fault location in telecommunication networks. 13. The method allows for monitoring on cable feeds, e.g.…”

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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