A MODEL FOR ELECTRICAL TREEING IN EPOXY NANOCOMPOSITE INSULATING MATERIALS

Document Type : Research Paper

Author

Aswan, Nanotechnology Research Centre NTRC, High Institute of Energy, South Valley University, Aswan, Egypt

Abstract

Electrical treeing is a pre-breakdown mechanism, and is the responsible
for the long-term degradation of polymer insulation. This paper has been
enhanced both the life-time of tree propagation to breakdown and the
tree growth rate of electrical tree propagation by adding various
amounts of nanoparticles as Clay, Silica, ZnO, and Al2O3 to various
industrial materials CT200 Epoxy Resin, and LY/HY-5052 Epoxy Resin.
This research has focused on the development of nanocomposite
materials with electrical tree growth resistance superior to the unfilled
matrix, and has stressed particularly the effect of filler volume fraction
on the breakdown resistance. Finally, this research aims to present a
systematic and comparative study about the effect of adding
nanoparticles to dielectric insulation, and to understand the role of these
nanoparticles, Clay, Silica, ZnO, and Al2O3 particles in the CT200
Epoxy Resin and LY/HY-5052 Epoxy Resin which can made significant
improvement in breakdown resistance, life-time of insulation and
decreasing the tree growth rate of electrical tree propagation.

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Main Subjects