Modelling of Electric Fields

Nielsen, Shawn (2005) Modelling of Electric Fields. In Bisnath, Sanjeev & Britten, Tony (Eds.) The Planning, Design and Construction of Overhead Power Lines. Crown Publications CC, Johannesburg, South Africa, pp. 176-197.

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Abstract

South Africa has an electrical transmission grid of over 25 000 km of overhead power lines with voltages of 132 kV to 765 kV. The grid has been largely designed and built by the power utility, Eskom. This book embodies the planning philosophies, design principles and construction practices of Eskom. It is the culmination of decades of thought, study, research and the practical experience of many overhead power line engineers and researchers.

The book covers the main aspects of overhead power line design and construction, from electrical first principles, system planning, insulation co-ordination (including live line working), mechanical design through to environmental impact management and power line communications. The content emphasises the need for close interaction between all technical disciplines involved and the importance of optimising designs for economy and performance. Additional challenges in South Africa are the relatively high altitude of the interior plateau (1 000 m to 1 700 m above sea level), severe lightning in some areas and long transmission distances. The book explains how these factors are accommodated in modern designs. Other advanced work covered includes the use and understanding of polymeric insulators, the judicious reduction of phase-to-phase spacings and the adoption of guyed structures.

Impact and interest:

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ID Code: 86950
Item Type: Book Chapter
Keywords: Planning, Over Head Line Design, 132kV, ESKOM
ISBN: ​9780620330428
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 27 Aug 2015 02:00
Last Modified: 04 Sep 2015 05:15

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