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Impact of Supraharmonics and Quasi-dc On the Operation of Residual Currentdevices
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0001-6074-8633
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0001-5558-7708
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0002-4004-0352
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0001-7528-101x
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2021 (English)In: CIRED 2021 - The 26th International Conference and Exhibition on Electricity Distribution, Institution of Engineering and Technology, 2021, p. 668-672, article id 60Conference paper, Published paper (Refereed)
Abstract [en]

Residual current devices (RCDs) are used in low voltage installations to disconnect the circuit in case of fault when the leakagecurrent exceeds a reference magnitude. The magnitude of reference leakage current is based on the magnitude of current thathuman body can withstand without getting shocked. This reference current is defined based on the 50/60 Hz component in theleakage current. The use of power electronic converters that switch in the supraharmonics frequency range (2 to 150 kHz) andrenewable energy sources such as solar inverters, would lead to the leakage current consisting of different frequencycomponents. This paper studies the impact of quasi-dc (0-4 Hz) and supraharmonics on the tripping characteristics of differenttypes of RCDs with the aim to identify fail-to-trip and false tripping conditions.

Place, publisher, year, edition, pages
Institution of Engineering and Technology, 2021. p. 668-672, article id 60
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Energy Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-89887DOI: 10.1049/icp.2021.1803OAI: oai:DiVA.org:ltu-89887DiVA, id: diva2:1647171
Conference
International Conference and Exhibition on Electricity Distribution (CIRED), Online, September 20-23, 2021
Funder
Swedish Energy Agency, 245711
Note

ISBN för värdpublikation: 978-1-83953-591-8 (elektronisk)

Available from: 2022-03-25 Created: 2022-03-25 Last updated: 2023-09-05Bibliographically approved

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Espin Delgado, AngelaSutaria, JilRönnberg, SarahNakhodchi, NaserBollen, Math

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