Analysis of cable failure modes and cable joint failure detection via sheath circulating current

Xiang Dong, Yanling Yuan, Zhongqiang Gao, Chengke Zhou, Peter Wallace, Babakalli Alkali, Bojie Sheng, Hao Zhou

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    39 Citations (Scopus)

    Abstract

    Power cables are preferred in urban areas for power transmission and distribution because of their high reliability, environmental friendliness and the visual invisibility. Whilst the volume of underground power cable has been growing steadily, the voltage level of the power cables have also increased significantly in recent years. The increasing volume of high voltage power cables brings about technical challenges to the power system operators and maintenance engineers. One of these challenges is the application of appropriate condition monitoring techniques to detect incipient cable faults and to reduce unplanned outages. This paper aims to analyse the causes, modes and mechanisms, among cable joint failures, and to propose an applicable sheath circulating current monitoring technique with the associated criteria for fault diagnosis. Two joint faults, flooded link box and joint insulation breakdown, are analysed in detail. Finally, a set of criteria is proposed for cable joint fault diagnosis based on the simulation of an 110kV underground power cable system of length 1.5km.

    Original languageEnglish
    Title of host publication2014 IEEE Electrical Insulation Conference (EIC)
    PublisherIEEE
    Pages294-298
    Number of pages5
    ISBN (Electronic)9781479927890
    ISBN (Print)9781479927876
    DOIs
    Publication statusPublished - 4 Aug 2014
    Event32nd Electrical Insulation Conference - Sheraton Downtown Hotel, Philadelphia, United States
    Duration: 8 Jun 201411 Jun 2014
    Conference number: 32

    Publication series

    NameEIC 2014 - Proceedings of the 32nd Electrical Insulation Conference
    Name
    ISSN (Print)2334-0975

    Conference

    Conference32nd Electrical Insulation Conference
    Abbreviated titleEIC 2014
    Country/TerritoryUnited States
    CityPhiladelphia
    Period8/06/1411/06/14

    Keywords

    • condition monitoring
    • failure modes
    • joint
    • power cables
    • sheath circuating current

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials

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