Performance of Silicone Rubber RTV 683 Mixed With SiO2, ATH, and TiO2 Under Corona Treatment As High Voltage Insulator

Abstract

The electrical industry demands improvements in electrical systems’ efficiency and performance. Silicon Rubber RTV 683 has good insulating properties, but for high-voltage applications, improved performance is required by adding fillers such as SiO<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf>, ATH, and TiO<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf>. This study aims to analyze the effect of adding filler on the hydrophobic properties and dielectric properties of Silicon Rubber RTV 683, as well as the impact of corona treatment on the performance of this material as a high-voltage insulator. The research method included making samples with variations in filler composition (5%, 10%, 15%, and 20%), applying corona treatment with an AC voltage of 10 kV, as well as analysis that included measurements of contact angle, permittivity values, surface and volume resistivity, as well as breakdown and flashover voltage before and after corona treatment. The results showed that corona exposure led to degradation of insulation performance and significant changes in surface wetting properties, especially in areas directly exposed. Corona treatment decreases relative permittivity, volume resistivity, and surface resistivity. However, samples with fillers showed better resistance and recovery. Corona treatment also significantly decreased flashover voltage for all samples, with filler samples showing a lower decrease. Although the addition of fillers increases the resistance of the material to the effects of the corona, such as in the SR-B1, SR-D3, SR-D1, and SR-ID samples, the corona treatment remains a critical factor affecting the performance of Silicone Rubber RTV 683 as a high-voltage insulator.

Access to Document

Other files and links

• Link to publication in Scopus

Fingerprint