High Voltage Overhead Lines and Underground Cables

Konstantin O. Papailiou studied electrical engineering at the Technical University of Braunschweig and earned his doctorate at ETH Zurich. He is Honorary Professor at the Technical University of Dresden in High-Voltage Overhead Lines and was Chief Executive Officer of the Pfisterer Group until 2011. From 2010 to 2016 he chaired the CIGRE Study Committee on Overhead Lines. Author of more than one hundred scientific papers and several books, including the Springer Handbook of Power Systems, he is presently President of CIGRE.Herbert Lugschitz, electrical engineer, worked for 40 years at Austrian Power Grid specializing in extra-high-voltage lines and was engaged in the discourse on overhead lines and underground cables. He worked also in standardization, chaired the Technical Committee “Overhead Lines and Embed­ding of Power Cables” of the Austrian Electrotechnical Association OVE, and at CENELEC establishing the Euro­pean Standard for overhead lines. He has been with CIGRE since the 1980ies, chaired Study Committee B2 “Overhead Lines” for six years. Markus Palic, after studying electrical energy technology, he worked for over 30 years in various positions in energy supply companies in the fields of energy management and grid construction, most recently as Chief Executive Officer of a regional grid company. At the same time, he was a lecturer in “Energy Economics in Liberalized Energy Markets” at the Aachen University of Applied Sciences, for many years. He has published more than 30 papers and two technical books on electrical engineering.Guntram Schultz studied Electrical Power Engineering at Karlsruhe Institute of Technology KIT (formerly University of Karlsruhe). He worked as planning engineer for several years in a Southern German power supply company. From 1981 on Professor at Karlsruhe University of Applied Sciences (areas: Planning and developing of power grids, Renewable Energy) and Dean of the Faculty of Electrical and Information Technology. After retirement, Honorary Professor, lecturer and program coordinator for further education of young engineers.

• Fundamentals and history of high-voltage and extra-high-voltage transmission.- Design and structure of power supply networks.- Introduction to network planning and operation.- Design of overhead lines and underground cable routes.-  Approval procedures and environmental impact assessment for projects.- Characteristics of cables and overhead lines in the network, basics of grid calculations, examples.- Overhead line components such as supports, conductors, insulators, fittings.- Tower foundations, tower erection and conductor stringing.- Uprating and upgrading of overhead lines.- Cable construction and fittings, gas-insulated lines (GIL).- Cables for high-voltage direct current transmission (HVDC).- Cable laying methods and monitoring.- Comparison of the technical properties of cables and overhead lines.- Partial undergrounding.- Comparison of the total costs of cables and overhead lines.- Future developments in power transmission.- Application of Artificial Intelligence in grid operation and -maintenance.