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    Practical Demonstration of High-impedance Fault Detection Technology in MV Distribution Network

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    CIRED 2019 - 490.pdf (356.0Kb)
    Paper number
    490
    Conference name
    CIRED 2019
    Conference date
    3-6 June 2019
    Conference location
    Madrid, Spain
    Peer-reviewed
    Yes
    Metadata
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    Authors
    Tianyou, LI, Fujian Electricity Power Co. LTd., China
    Chaoyi, Huang, Quanzhou Electric Power Supply Company, China
    Abstract
    In MV distribution network, theprobabilityofsingle-phase-to-groundfaultisashighas60% to 80%. Some of these faults can cause personal electric shocks or fire incidents, such as broken wires and wires discharged through the branches. They are classified as high-impedance faults (HIF). The existing faulty line selection and protection devices cannot reliably detect HIF. To ensurespublic safety,it is necessary to develop new technologies for HIF detection in distribution network.This article focuses on these issues, and introduces the research and demonstration of HIF detection technology in Fujian electricity Power Co. Ltd. In addition, artificial grounding tests were conducted to simulate ground faults through resistance, spherical gap, devices, wet earth and dry earth.
    Publisher
    AIM
    Date
    2019-06-03
    Published in
    • CIRED 2019 Conference
    Permanent link to this record
    https://cired-repository.org/handle/20.500.12455/36
    http://dx.doi.org/10.34890/76
    ISSN
    2032-9644
    ISBN
    978-2-9602415-0-1

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