Evaluation and modelling of harmonic earth fault currents

Nikander, Ari; Pakonen, Pertti (2023)
 
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Nikander, Ari
Pakonen, Pertti
Institution of Engineering and Technology
2023


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doi:10.1049/icp.2023.0882
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https://urn.fi/URN:NBN:fi:tuni-202401181601

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Harmonic earth fault current and earthing voltage generated by pre-fault harmonic voltage is studied in MV networks. Influence of the frequency and fault location is also analysed and the effect of the pre-fault harmonic voltage to the neutral voltage during an earth fault is considered. A method for evaluating the harmonic earthing voltage and its influence is proposed. Also, results of the field measurements are presented.
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