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Propagation of UWB Transients in Low-Voltage Power Installation Networks
Department of Engineering Science, Uppsala University.ORCID iD: 0000-0003-4740-1832
Department of Engineering Science, Uppsala University.ORCID iD: 0000-0002-1607-2493
Combitech AB.
2008 (English)In: IEEE transactions on electromagnetic compatibility (Print), ISSN 0018-9375, E-ISSN 1558-187X, Vol. 50, no 3, 619-629 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, the propagation of ultra-wideband (UWB) transients through different types of junctions of low-voltage power cables and one real power network of a building were investigated. For the laboratory test, it was seen that the main mode of propagation in the cables and through the junctions tested is transverse electromagnetic (TEM). The received voltage could thus be, within a small error, estimated from transmission-line theory. The main cause for decreased voltage received at the loads of the branches of the junctions is reflections due to impedance mismatch of the junctions. Large voltages can be delivered to many unprotected loads connected to the junctions. UWB transients were also injected into a residential house using a power outlet available on the outside wall of the house. It was seen that the complexity of this network creates deviation from the TEM mode. However, relatively large voltages were still received at the various outlets inside the house. It is recommended that power outlets or lamp sockets outside buildings are controlled from inside using two-pole switches that reduce the received voltage to reduce the risk of conducted intentional electromagnetic interference.

Place, publisher, year, edition, pages
2008. Vol. 50, no 3, 619-629 p.
Keyword [en]
high-power electromagnetic (HPEM), intentional electromagnetic interference (IEMI), low-voltage power installation cables, transient propagation, ultra-wideband (UWB) transients
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-50906DOI: 10.1109/TEMC.2008.927927ISI: 000258820700007OAI: oai:DiVA.org:kth-50906DiVA: diva2:463027
Note
QC 20111208Available from: 2011-12-08 Created: 2011-12-08 Last updated: 2017-12-08Bibliographically approved

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Månsson, DanielThottappillil, Rajeev

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