Akademik Veri Yönetim Sistemi
11th International Conference on Computational and Eperimental Science and Engineering (ICCESEN-2024), Antalya, Türkiye, 25 - 28 Ekim 2024, ss.17-22, (Tam Metin Bildiri)
Silicone materials are widely chosen for their electrical insulation properties and thermal stability in high-voltage applications. However, under operational conditions, carbonization and tracking may negatively impact the long-term performance of these materials. The primary objective of this study is to demonstrate the applicability of the leakage current and harmonic analysis method in analyzing the behaviour of electrical insulation materials according to IEC 60112 standard. Carbonization tracks and short-circuit occurrences resulting from pollutant liquid droplets applied for durations of 10, 20, and 30 seconds at 500 and 600 voltage levels. The harmonic analysis, which bases its analysis on group delay in the amplitude-frequency domain of leakage current signals, provides a precise characterization of harmonic components. The results offer a detailed analysis of harmonic distortions under different voltage and water application conditions, contributing to a better understanding of silicone insulation materials’ performance. In experiments conducted under 600 V voltage level, serious increases were observed in leakage currents at some points in 20 sec and 10 sec periodic pollutant liquid applications. In addition, increasing disturbances in the waveform of the signal reveal that electrical discharges should be analysed. The 30 sec periodic pollutant liquid application within the scope of CTI is insufficient to create extraordinary environmental conditions. Therefore, in this study, 20 sec and 10 sec periods were selected and more detailed analyses were performed. The findings obtained show that there are more serious and destructive electrical discharges on the surface of the reinforced silicone.