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    Real Time detection and localization of self extinguishing defects on a MV network

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    CIRED 2019 - 1973.pdf (473.6Kb)
    Paper number
    1973
    Conference name
    CIRED 2019
    Conference date
    3-6 June 2019
    Conference location
    Madrid, Spain
    Peer-reviewed
    Yes
    Metadata
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    Authors
    Grégis, Nicolas, CEA TECH - LIST, France
    Cochet, François, Nexans Suisse SA, Switzerland
    Benoit, Jaume, CEA TECH - LIST, France
    Ravot, Nicolas, CEA TECH - LIST, France
    Gobat, Gabriel, Nexans Suisse SA, Switzerland
    Desbats, Philippe, CEA TECH - LIST, France
    Abstract
    Considering Medium Voltage (MV) buried networks, self-extinguishing defects [1] are known to be precursors of potential breakdown during operations especially at the level of accessories. A great interest among the DSO community for a system able to detect these defects before breakdown was raised.Nexans in collaboration with CEATech developed a system able to capture perturbations or events on a dedicated portion of a given MV network. This system is based on very sensitive and precise acquisition boards (signal amplitude versus time) which can be located at different points of the monitored network. Thanks to a post processing algorithm of the collected data based on time reversal techniques, an accurate localization of relevant events can be made. Due to the fact that each acquisition board has its own clock reference based on a GPS antenna, the localization accuracy is within a tens of meter.This paper will show some results of measurements performed on real life network exploitation, together with potential developments like the establishment of defects typology and self-learning expertise.
    Publisher
    AIM
    Date
    2019-06-03
    Published in
    • CIRED 2019 Conference
    Permanent link to this record
    https://cired-repository.org/handle/20.500.12455/668
    http://dx.doi.org/10.34890/890
    ISSN
    2032-9644
    ISBN
    978-2-9602415-0-1

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