The Practical Application of High-Voltage Insulators

This photo illustrates the dry-band arcing that can happen to polluted insulators under wetting conditions
 and which can lead to flashover.
 

 

The course has been designed to enhance the understanding of design, manufacturing principles and pollution/aging processes for the range of insulators available in the market place today.

Coupled with handling, storage, installation, and inspection practices the course teaches the necessary skills to understand and resolve practical insulator problems.

Course Content

bulletBasic insulation principles
bulletInsulation flashover processes
bulletInsulator failure mechanisms
bulletEnvironmental factors
bulletSite severity assessment
bulletElectrical design aspects, including:
bulletinsulator construction
bulletshed geometry
bulletinsulator materials
bulletMechanical design aspects, including:
bulletanalysis of applied forces
bullettensile, cantilever and torsional loading
bullettime/load characteristics
bulletinsulator testing
bulletfield inspection techniques
bulletInsulator maintenance techniques, including:
bulletwashing
bulletgreasing
bulletsilicone rubber coatings
bulletprofile modification
bulletinsulator handling and storage
bulletCase studies, line and substation insulation

 

The Course Presenters

Wallace Vosloo

Mr. Vosloo is Chief Consultant of TSI (Technology Services International), a division of Eskom Enterprises. He is a noted consultant in the field of high-voltage insulators. He won a best paper award at the International Symposium for High Voltage Engineering in Canada. He received the SAIEE President's award for his contribution in the field of high voltage insulator research. He won the Eskom Technology Groups research project of the year award for the Insulator Pollution Maintenance Guide. He has been a keynote presenter on high-voltage insulators at international conferences. He is currently working on a Ph.D. degree in the field of polymeric insulators.

Roy Macey

Mr. Macey has been involved in the study of the performance, maintenance, and design of high voltage insulators for the past 27 years. He established the first energized insulator test stations in South Africa. In 1980 he received an MSC (eng) degree for his thesis "The Performance of Outdoor High Voltage Insulation in Polluted Environments".  A technical paper of the same title presented to the SAIEE received the SA Transport Services award. He has also received a Telemecanique Electrical Design award and a Shell Design award for his design of 22kV overhead line insulators. Roy is the South African representative on Cigre Study Committee 22 (overhead lines) and a member of Working Group 03 (Insulators).

 

Contact: Pollution@Levico.com

 

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