Evaluation of Thermal Uprating of Sundon Grid – Leighton Buzzard 33kV Feeders

    Research output: Book/ReportCommissioned report

    Abstract

    This report evaluates the performance of the existing Jaguar conductor assuming thermal uprating to 75°C based on four different scenarios. Among these scenarios two consider no elevated temperature creep and therefore do not account for the thermal rating exceedance risk (i.e. by ignoring the 0.001% exceedance based on ENA TS P27 thermal rating standard practice and the possible ageing associated with it). The other two scenarios account for the risk of elevated temperature creep operation considered in ENA TS P27. In addition, the analysis evaluates the performance of different novel high temperature low sag (HTLS) conductors on the two Sundon Grid – Leighton Buzzard 33 kV feeders and suggests pole modifications that allow for operation up to 200°C. For all the four scenarios, poles’ modifications are suggested and maximum new current ratings of the feeders are provided.
    Original languageEnglish
    PublisherNo publisher name
    Publication statusPublished - 2016

    Publication series

    NameUK Power Networks Report for thermal rating of 33kV overhead lines

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