Functionally Graded Materials (FGM) for Spacers in Gas Insulated Systems: A Concise Review and Some Comments
Received: 10 September 2021 | Revised: 7 October 2021 | Accepted: 12 November 2021 | Online: 11 December 2021
Functionally Graded Materials (FGMs) present a solution to control electrical stresses in high voltage applications. In this paper, a concise review is presented on the FGMs for spacers in gas-insulated systems. FGMs offer the possibility of a more even electric field distribution and thus a viable solution for industrial applications. FGMs are investigated here primarily as materials for permittivity control. Some aspects of FGMs are discussed as well as some thoughts on future challenges.
Keywords:gas insulated systems, dielectric constant, permittivity, triple junction point, dielectric strength, functionally graded materials, fillers, microfillers, nanofillers
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