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Mechanical Fracture Characteristic of Epoxy Insulation Barrier for High Voltage GIS

초고압 GIS용 에폭시 절연물 배리어 파단 특성

  • Suh, Wang Byuck (Department of Mechanical Engineering, Yeungnam University)
  • 서왕벽 (영남대학교 기계IT대학 기계공학부)
  • Received : 2017.08.09
  • Accepted : 2017.08.21
  • Published : 2017.10.01

Abstract

In this study, an epoxy insulation barrier for high voltage GIS was developed using epoxy and a filler with a Young's modulus of 11 GPa. The material was investigated using a simulation of the principal stress, displacement, and safety factors while optimizing the profile shape. The simulation showed that thelarger Young's modulus of the $Al_2O_3$ filler compared to the $SiO_2$ in the epoxy insulation can contribute to an increase in resistance to mechanical fracturing for theoptimized profile barrier in high voltage GIS. In addition, the safety factor was improved by 10%. It can be concluded that the mechanical fracturing properties of the insulation barrier can be enhanced by increasing the content of the elastic filler, $Al_2O_3$, for high voltage GIS applications.

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