Transfer of Supraharmonics Through a MV/LV Transformer

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Samenvatting

In this research, the transfer of supraharmonic (SH) distortions through a transformer from the low-voltage (LV) to the medium-voltage (MV) and from the MV to (another) LV grid is studied, based on measurements on both voltage levels in a laboratory installation with 3 transformers ≥ 1 MVA. SH currents are injected using an SH emitting device. It is found that SH distortions propagate with a ratio between 0.03 and 1.0 from LV to MV and that some of the components propagate more easily, probably due to resonances. From MV to LV the transfer ratio is between 0.5 and 3.0, and some components are amplified. The results show that supraharmonics can propagate through transformers and that the possibility of interference with other LV installations exists.
Originele taal-2Engels
Titel27th International Conference on Electricity Distribution (CIRED 2023)
UitgeverijInstitution of Engineering and Technology (IET)
Pagina's110-114
Aantal pagina's5
ISBN van elektronische versie978-1-83953-855-1
DOI's
StatusGepubliceerd - 29 sep. 2023
Evenement27th International Conference on Electricity Distribution (CIRED 2023) - Rome, Italië
Duur: 12 jun. 202315 jun. 2023

Publicatie series

NaamIET Conference Proceedings
Nummer6
Volume2023

Congres

Congres27th International Conference on Electricity Distribution (CIRED 2023)
Land/RegioItalië
StadRome
Periode12/06/2315/06/23

Financiering

This research is part of the project TEPQEV and supported by Topsector Energy-subsidy of the Dutch Ministry of Economic Affairs and Climate. The authors would like to thank the colleagues from the High Power Laboratories of KEMA Labs, for facilitating the high-voltage measurement equipment and enabling access to measurement locations.

FinanciersFinanciernummer
Ministerie van Economische Zaken en Klimaat

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