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Induced Voltages in a Low-Voltage Power Installation Network Due to Lightning Electronmagnetic Fields: An Experimental Study
Swedish National Defence College, Department of Military Studies, Military-Technology Division.
Uppsala Universitet, Institutionen för Högspänningsforskning.
Uppsala Universitet, Institutionen för Högspänningsforskning.
Uppsala Universitet, Institutionen för Högspänningsforskning.
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1999 (English)In: IEEE transactions on electromagnetic compatibility (Print), ISSN 0018-9375, Vol. 41, no 3, 265-271 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents the experimental results on the induced common-mode (CM) voltages in a residential low-voltage power installation (LVPI) network exposed to electromagnetic fields from lightning. The objective of this investigation was to find out the severity of inducedvoltages in a low voltage network due to direct coupling of the lightning electromagnetic fields with the network in the absence of transient overvoltages coming through the distribution lines. Therefore, during the experiment the LVPI network was disconnected from the distribution network to exclude conducted transients in the measured signals entering through the mains. The induced CM voltages in a power outlet of the network were measured simultaneously with the vertical component of the electric field near the installation. The sequence of induced voltage events during the complete duration of one negative cloud-to-ground (CG) flash, one positive CG flash, and one cloud flash (CC), thought to be typical, is presented simultaneously with the electric field. It is shown that in addition to the return strokes in ground flashes, other discharge events taking place in the cloud; notably, the bipolar pulse trains associated with the initiation of both CG lightning and cloud lightning, are also important in determining the transient environment of electronic devices connected to a LVPI network. Flashes at a distance of about 25 km produced many induced-voltage pulses as large as 100 V, six such pulses in a time period of 0.4 ms in a negative CG flash, and 11 such pulses in a time period of 3 ms in a CC that immediately followed the ground flash.

Place, publisher, year, edition, pages
1999. Vol. 41, no 3, 265-271 p.
Keyword [en]
Electromagnetic coupling, lightning-induced voltages, low-voltage power installation
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Militärteknik
Identifiers
URN: urn:nbn:se:fhs:diva-295DOI: 10.1109/15.784166OAI: oai:DiVA.org:fhs-295DiVA: diva2:295194
Available from: 2010-02-17 Created: 2010-02-17 Last updated: 2013-08-07Bibliographically approved

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CiteExportLink to record
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