Investigation on insulation reliability of 380 kV XLPE cable systems

Chen, X.; Smit, J.J.; Meijer, S.

doi:10.1109/eic.2011.5996193

Cited by 2 publications

(2 citation statements)

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“…The safety of cable is directly related to the transmission and distribution of urban electricity, which is an important part of urban power transmission and distribution system and closely related to people's lives. Cable failure can be caused by many factors [41][42][43], so the maintenance of the cable needs to be checked regularly. It is a complicated process for cable inspection including UV defect inspection, insulation inspection and clamp inspection and so on.…”

Section: Power Cablementioning

confidence: 99%

An Overview of Digital Twin Concept for Key Components of Renewable Energy Systems

2021

Int. J. Robot. Autom. Technol.

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Renewable energy (RE) is green and low-carbon energy, which can not only protect the environment, promote the technological diversification of the energy supply system, accelerate the adjustment of energy structure, but also has important significance for the sustainable development of economy. With the increasing complexity of the problems of renewable energy system asset management and ensuring the operational reliability of electric power equipment, it's necessary to establish remote, online, reliable monitoring and inspection techniques for the state evaluation of electrical equipment during the full life cycle. In order to meet these demands, the digital twin is a very suitable technology. In recent years, there are numerous scientific papers demonstrating DT's capabilities in virtual simulation, condition monitoring (CM), power optimization and fault diagnosis for RE generation systems, transmission and transformation equipment and storage systems. The majority of the research focusing on product design, maintenance of operation, condition monitoring and fault decision-making has provided many valuable contributions to academia and industrial fields. Nevertheless, all this valuable information is scattered over many literatures and it is lack of systematic generalization. In this article, different applications of DT technology in RE system are analyzed, advanced methods and theories are summarized comprehensively, and the development trend of DT technology in renewable energy system in the future is introduced.

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Section: Power Cablementioning

confidence: 99%

An Overview of Digital Twin Concept for Key Components of Renewable Energy Systems

2021

Int. J. Robot. Autom. Technol.

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“…Existing assessment and investigation of power cable failures are based on simple calculation of the number of failures per one hundred kilometers per year or the number of failures per one hundred circuits, with considerations given occasionally to voltage ratings, cable types [9] and cable lengths. The outcome of the analysis is often inconclusive as cable failures can be due to a number of factors [10]. In addition, the existing approaches are unable to single out the most important reasons such as poor quality from a particular manufacturer or poor installation practice from a particular installation service provider with scientific underpinning.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Significant Factors on Cable Failure Using the Cox Proportional Hazard Model

Tang

Zhou

Jiang

et al. 2014

IEEE Trans. Power Delivery

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B 2014, 'Analysis of significant factors on cable failure using the Cox proportional hazard model', IEEE Transactions on Power Delivery, vol. 29, no. 2, pp. 951-957. https://doi. Abstract-This paper proposes the use of the Cox ProportionalHazard Model (Cox PHM), a statistical model, for the analysis of early-failure data associated with power cables. The Cox PHM analyses simultaneously a set of covariates and identifies those which have significant effects on the cable failures. In order to demonstrate the appropriateness of the model, relevant historical failure data related to Medium Voltage (MV, rated at 10kV) distribution cables and High Voltage (HV, 110kV and 220kV) transmission cables have been collected from a regional electricity company in China. Results prove that the model is more robust than the Weibull distribution in that failure data does not have to be homogeneous. Results also demonstrate that the method can single out a case of poor manufacturing quality with a particular cable joint provider by using the hypothesis test of p-value (5%). The proposed approach can potentially help to resolve any legal dispute that may arise between a manufacturer and a network operator, in addition to providing guidance for improving future practice in cable procurement, design, installations and maintenance. Index Terms-power cable, cable failures, Cox ProportionalHazard Model, hazard function, influencing factors, covariate.

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Investigation on insulation reliability of 380 kV XLPE cable systems

Cited by 2 publications

References 1 publication

An Overview of Digital Twin Concept for Key Components of Renewable Energy Systems

An Overview of Digital Twin Concept for Key Components of Renewable Energy Systems

Analysis of Significant Factors on Cable Failure Using the Cox Proportional Hazard Model

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