Abstract
Chapters 2–4 explain basic field behavior, focusing on the enhancement of the field strength which might take place at the contact point of a solid insulating support. In this chapter, we deal with some practical examples concerning such field behavior near the point of contact in insulation systems. As the content covers several diverse topics, historical overviews are given in each topic area when considered necessary. The main topics covered in this chapter are: (a) For a finite contact angle, the shape or profile of a solid insulating support (a so-called “spacer”) to prevent the field enhancement is discussed. Optimizing calculation of the spacer shape and experimental studies for gas-insulated cables are also briefly mentioned. (b) For a zero contact angle, the field behavior in various practical configurations is analyzed. (c) Field behavior and its application to the common contact of three dielectrics are considered. Additionally we also briefly mention some applications to devices used for high field emission and beam generation.
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Takuma, T., Techaumnat, B. (2010). Electric Field in High-Voltage Equipment. In: Electric Fields in Composite Dielectrics and their Applications. Power Systems. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-9392-9_5
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DOI: https://doi.org/10.1007/978-90-481-9392-9_5
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