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    RMU with Eco-Efficient Gas Mixture: Evaluation after 3 years of Field Experience

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    CIRED 2019 - 1031.pdf (699.9Kb)
    Paper number
    1031
    Conference name
    CIRED 2019
    Conference date
    3-6 June 2019
    Conference location
    Madrid, Spain
    Peer-reviewed
    Yes
    Metadata
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    Authors
    Kristoffersen, Martin , ABB, Norway
    Hyrenbach, Maik, ABB AG, Germany
    Harmsen, Denny, Alliander, Netherlands
    Van Rijn, Theo, Liander, Netherlands
    Vosse, Robert, Qirion, Netherlands
    Abstract
    Gas-insulated switchgear (GIS) are key components in medium voltage (MV) distribution networks. SF6 gas is the preferred insulation medium for GIS. However, SF6 has a high global warming potential (GWP) of 22800 and might be targeted for replacement by the EU Commission. Power and automation equipment supplier ABB has developed eco-efficient GIS solutions based on the AirPlusTM gas mixture consisting of dry air and Novec 5110 C5F10O-fluoroketone (C5-FK). For MV secondary distribution applications, the AirPlus gas mixture must have a dew point below -25°C. A three-year field experience program was started in November 2015. Four SafeRing AirPlus ring main units (RMUs) were installed in Liander’s network in Flevoland, Netherlands. Gas samples were collected and analysed several times per year and the units were visually inspected during site visits. Two of the four RMUs were returned to ABB for further inspection at the end of the 3-year period. The results of the gas analysis and measurements confirmed that no significant change has occurred since the units were installed and energized. The outcome of the measurements and observations during and after the three years (2015-2018) of service will be discussed in this paper.
    Publisher
    AIM
    Date
    2019-06-03
    Published in
    • CIRED 2019 Conference
    Permanent link to this record
    https://cired-repository.org/handle/20.500.12455/252
    http://dx.doi.org/10.34890/484
    ISSN
    2032-9644
    ISBN
    978-2-9602415-0-1

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