Voltage Correction Factors for Air-Insulated Transmission Lines Operating in High-Altitude Regions to Limit Corona Activity: A Review

Jordi-Roger Riba, William Larzelere and Johannes Rickmann
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Jordi-Roger Riba: Electrical Engineering Department, Universitat Politècnica de Catalunya, 08220 Terrassa, Spain
William Larzelere: Evergreen High Voltage NY, PO Box 1758, Bolton Landing, NY 12814, USA
Johannes Rickmann: Siemens AG, Energy Management Division, Freyeslebenstr. 1, 91058 Erlangen, Germany

Energies, 2018, vol. 11, issue 7, 1-14

Abstract: Nowadays there are several transmission lines projected to be operating in high-altitude regions. It is well known that the installation altitude has an impact on the dielectric behavior of air-insulated systems. As a result, atmospheric and voltage correction factors must be applied in air-insulated transmission systems operating in high-altitude conditions. This paper performs an exhaustive literature review, including state-of-the-art research papers and International Standards of the available correction factors to limit corona activity and ensure proper performance when planning air-insulated transmission lines intended for high-altitude areas. It has been found that there are substantial differences among the various correction methods, differences that are more evident at higher altitudes. Most high-voltage standards were not conceived to test samples to be installed in high-altitude regions and, therefore, most high-voltage laboratories are not ready to face this issue, since more detailed information is required. It is proposed to conduct more research on this topic so that the atmospheric corrections and altitude correction factors found in the current International Standards can be updated and/or modified so that high-voltage components to be installed in high-altitude regions can be tested with more accuracy, taking into account their insulation structure.

Keywords: high-voltage techniques; corona; critical disruptive voltage; high-altitude; correction factors (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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