On the interception of lightning flashes by power transmission lines
2011 (English)In: Journal of Electrostatics, ISSN 0304-3886, E-ISSN 1873-5738, Vol. 69, no 3, 220-227 p.Article in journal (Refereed) Published
The design of the lightning protection system LPS of transmission lines is based on the well knownelectro-geometrical model. The electro-geometrical model assumes that the first point on a powertransmission line that will come within striking distance of the tip of a down-coming stepped leaderchannel is the strike point of the lightning flash. The model neglects almost all of the physics associatedwith the lightning attachment.Nowadays, as it is possible to use modern hardware and software tools and several different numericalmethods, it is feasible to apply the physics of the discharge process to the study of lightning attachment.Such models take into account the movement of the downward and the resulting upward leaders fromdifferent points on the structures under consideration.In this paper, a procedure based on lightning physics was used to analyze the lightning attachmentphenomena in EHV transmission lines of 230 kV and 500 kV and the results were compared with thepredictions of the electro-geometrical method.
Place, publisher, year, edition, pages
2011. Vol. 69, no 3, 220-227 p.
power system, lightning attachment, breakdown, downward leader
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject Engineering Science with specialization in Atmospheric Discharges
IdentifiersURN: urn:nbn:se:uu:diva-150534DOI: 10.1016/j.elstat.2011.03.013ISI: 000292230300012OAI: oai:DiVA.org:uu-150534DiVA: diva2:407597