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The Influence of Additional Earthing of Healthy Phase for Earth Fault Location on Overvoltage in Distribution Networks

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F14%3APU112429" target="_blank" >RIV/00216305:26220/14:PU112429 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    The Influence of Additional Earthing of Healthy Phase for Earth Fault Location on Overvoltage in Distribution Networks

  • Original language description

    The Czech MV compensated networks operated by distribution system operator E.ON are not switched off immediately in the case of earth fault. In such cases, there is real risk of hazard voltages around faulty place. Therefore automatic for additional earthing of faulty phase is installed under pilot project in one supply substation 22kV. This automatic can be also used for short-time connection (100 ms) of healthy phase to earthing system of supply substation that leads to double line-to-earth short circuit which increase level of fault current to value which is sufficient for calculation of the fault distance by fault locator installed in outgoing feeder. As performed field tests showed, this operation can caused high overvoltage up to 200 % of operation voltage, therefore the paper gives the recommendation for choosing of the healthy phase for minimizing the overvoltage during this location technique.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    JE - Non-nuclear power engineering, energy consumption and utilization

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/LO1210" target="_blank" >LO1210: Energy for Sustainable Development</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2014

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    CIDEL Argentina 2014, International Conference on Electricity Distribution

  • ISBN

    978-987-97399-6-9

  • ISSN

  • e-ISSN

  • Number of pages

    7

  • Pages from-to

    1-7

  • Publisher name

    CIDEL 2014

  • Place of publication

    Buenos Aires, Argentina

  • Event location

    Buenos Aires

  • Event date

    Sep 22, 2014

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article