Ramp sinusoidal breakdown of epoxy resin under high voltage waveforms at different frequencies
W. Zhao (TU Delft - Electrical Engineering, Mathematics and Computer Science)
T. Luo (TU Delft - Electrical Engineering, Mathematics and Computer Science)
M. Ghaffarian Niasar (TU Delft - Electrical Engineering, Mathematics and Computer Science)
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Abstract
In this study, the immediate time to breakdown for pure epoxy resin is measured by applying a ramp sinusoidal voltage signal at certain frequency (50Hz, 500Hz and 5000Hz) until breakdown occurs. The HV testing procedures, epoxy resin sample and experimental set-up preparation and Weibull analysis of obtained results are elaborated. The experiments were carried out on epoxy samples with the thickness between 0.1mm and 0.2mm and the thickness was divided into three groups for more accurate statistical analysis.