Short-circuit impedance measurement

Knud Ole Helgesen Pedersen, Arne Hejde Nielsen, Niels Kjølstad Poulsen

    Research output: Contribution to journalJournal articleResearchpeer-review


    Methods for estimating the short-circuit impedance in the power grid are investigated for various voltage levels and situations. The short-circuit impedance is measured, preferably from naturally occurring load changes in the grid, and it is shown that such a measurement system faces different kinds of problems at different locations in the grid. This means that the best measurement methodology changes depending on the location in the grid. Three typical examples with different measurement problems at 400 kV, 132 kV and 400 V voltage level are discussed.
    Original languageEnglish
    JournalIEE Proceedings-Generation Transmission and Distribution
    Issue number2
    Pages (from-to)169-174
    Publication statusPublished - 2003


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