Single end self-clearing transient fault location for preventive maintenance of power cable systems

Ngoc, Minh Nguyen; Hadjsaïd, Nourédine; Cochet, F.

doi:10.1109/ptc.2013.6652305

Cited by 4 publications

(4 citation statements)

References 11 publications

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“…Still, high sampling frequency rate measurement equipment with precise front wave arrival time recording are necessary, increasing the capital cost that may hinder real‐life applications. In Alamuti et al, Nouri et al, Ngoc et al, Kim et al and Bialek, and Kim et al, some model‐based solutions for incipient FL, which considers 1‐terminal data and time‐domain formulations, are presented. These solutions make strong hypotheses as the disregard of the line mutual inductances or shunt capacitances, neglect fault arc voltage presence, and assume DN balanced operation condition .…”

Section: Introductionmentioning

confidence: 99%

“…In Alamuti et al, Nouri et al, Ngoc et al, Kim et al and Bialek, and Kim et al, some model‐based solutions for incipient FL, which considers 1‐terminal data and time‐domain formulations, are presented. These solutions make strong hypotheses as the disregard of the line mutual inductances or shunt capacitances, neglect fault arc voltage presence, and assume DN balanced operation condition . The fault arc‐voltage is neglected by modeling the fault as a short circuit or a linear resistance; however, arc voltage phenomena cannot be neglected when incipient faults .…”

Section: Introductionmentioning

confidence: 99%

“…These solutions make strong hypotheses as the disregard of the line mutual inductances or shunt capacitances, neglect fault arc voltage presence, and assume DN balanced operation condition . The fault arc‐voltage is neglected by modeling the fault as a short circuit or a linear resistance; however, arc voltage phenomena cannot be neglected when incipient faults . Furthermore, underground cables have a considerable capacitive effect, and DNs have inherently unbalanced operation .…”

Section: Introductionmentioning

confidence: 99%

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Incipient fault location method for distribution networks with underground shielded cables: A system identification approach

Bretãs

Herrera-Orozco

Orozco-Henao

et al. 2017

Int Trans Electr Energ Syst

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Summary Incipient faults in underground shielded cables can affect greatly distribution system reliability. These faults are usually a consequence of a gradual aging process on cable isolation material and over time become permanent faults. This paper presents an incipient fault location method for distribution networks with underground shielded cables. The fault location method is composed by a time domain system model and a parameter estimation approach. The model is derived by using phase component representation of voltage and current signals, considering 1‐terminal measurements and realistic hypotheses. Inherent characteristics of underground distribution networks with shielded cables and incipient faults, as unbalanced operation, complete line model, and arcing phenomena are considered during the problem statement. The time‐domain model is an overdetermined system of linear equations. Incipient fault location is estimated through a parameter estimation approach, based on a non‐negative weighted least square estimator. Input data are preprocessed with smooth and curve‐fitting approaches. Output data are postprocessing using a back substitution approach. Validation using real‐life distribution network with underground shielded cables data is presented. Comparative test results with the state of art characterize the proposed approach precision and robustness. High accuracy, easy to implement methodology without hard‐to‐design parameters, and only local terminal measurements consideration highlight potential aspects for real‐life applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Incipient fault location method for distribution networks with underground shielded cables: A system identification approach

Bretãs

Herrera-Orozco

Orozco-Henao

et al. 2017

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

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“…Therefore, they gradually result in a permanent cable fault [1,2]. Moreover, the incipient faults last for a few milliseconds and they cannot be detected with the conventional protective schemes [3][4][5]. This faults can be characterized by the sudden change of the cable resistance in the location of the cable fault.…”

Section: Introductionmentioning

confidence: 99%

Incipient fault monitoring of medium voltage UD-EPR power cable using Rogowski coil

Naseri

Ghanbari

Farjah

2015

2015 International Congress on Electric Industry Automation (ICEIA 2015)

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The cable dielectric break down or the cable splices flaw usually result in high arc voltages and cable incipient faults. These types of faults are repetitious and can lead to permanent cable fault if they are not rapidly removed. Since the incipient faults occur in a very short period of time (often less than a cycle), they cannot be detected by means of the protective relays. During an incipient fault a high frequency current pulse is produced. This paper uses Rogowski coil sensor to capture these fast current transients and to detect the fault. The captured signals can be used in SCADA system for monitoring and controlling of the feeder conditions. Besides, the Rogowski coils can be exactly calibrated for metering applications as well. The designed Rogowski coil is very simple and cheap. It is air-cored and there is no concern with the core saturation which may occur in CTs when measuring high-frequency currents caused by the incipient faults. Performance of the proposed technique is tested and validated in the laboratory using the Underground-Duct Ethylene-Propylene Rubber Insulation (UD-EPR) cable. A fault event is imposed to the cable and the results are recorded. The experimental results show that the proposed fault monitoring technique can effectively detect the incipient faults.

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Research on Characterizing and Detecting Voltage Disturbance Due to the Incipient Fault of MV Power Cables

Cao¹,

Guang-zhen

et al. 2023

Trans. Electr. Electron. Mater.

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Single end self-clearing transient fault location for preventive maintenance of power cable systems

Cited by 4 publications

References 11 publications

Incipient fault location method for distribution networks with underground shielded cables: A system identification approach

Incipient fault location method for distribution networks with underground shielded cables: A system identification approach

Incipient fault monitoring of medium voltage UD-EPR power cable using Rogowski coil

Research on Characterizing and Detecting Voltage Disturbance Due to the Incipient Fault of MV Power Cables

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