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Journal : Emerging Science Journal

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Optimization of nSiO2-Filled RTV Silicone Rubber Coatings for Enhanced High Voltage Outdoor Insulator Performance Nalendra, Agustinus D.; Rachmawati; Alifianda, Aulia R.; Permatasari, Fitri A.; Suwarno
Emerging Science Journal Vol. 9 No. 4 (2025): August
Publisher : Ital Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/ESJ-2025-09-04-025

Abstract

This paper presents the experimental results of leakage current testing on nanosilica (nSiO₂)-filled room-temperature vulcanized (RTV) silicone rubber (SiR) coatings for outdoor insulators. Nanosilica composition is prepared based on the optimization results of surface hydrophobicity, surface resistivity, and relative permittivity of the RTV SiR matrix with varying nSiO2 contents. The study found that the insulator with a 4 wt.% nSiO₂-filled RTV SiR coating had the highest surface resistivity, better hydrophobicity, and higher permittivity compared to the unfilled RTV SiR coating. Leakage current tests are performed under several conditions (dry, clean fog, and salt fog) to evaluate the insulation characteristics of the modified RTV SiR coating applied on an actual high-voltage insulator. The results indicate that the 4 wt.% nSiO2-filled RTV SiR-coated insulator significantly reduces the leakage current magnitude and Total Harmonic Distortion (THD) when compared to that of the uncoated as well as to that of unfilled RTV SiR-coated insulators. Under all fog conditions, the 4 wt.% nSiO2-filled RTV SiR-coated insulator with a polluted surface showed the smallest leakage current THD percentage of all insulator samples. Additionally, the cross product of the leakage current magnitude and THD is also calculated to determine the condition of the insulator. The cross-product results show that the 4 wt.% nSiO₂-filled RTV SiR-coated insulator is more effective at reducing it under dry conditions, with a reduction range of 68%–81% compared to the uncoated isolator and 70%–77% compared to the unfilled RTV SiR-coated isolator. This study shows the effectiveness of RTV silicone rubber coating material with nSiO2 filler particles in reducing the magnitude of leakage current and harmonics in polluted environments.
Co-Authors Adi, Handaru Indrian Sasmito Adiputra, Dede Kurnia Agustin, H.C. Kis Ahmad Yusam Thobroni, Ahmad Yusam Ai Fauziah Al arif, Mohammad Anam Alifianda, Aulia R. Alkusani Andrinaldo, Arisky Anita Rauzana Arifin, Daud Ayu Juni Sihombing Bahrullah Akbar Capricornness, Vincent Christian, Marvin Christian, Yefta Deby Fauzi Asidiqi Deli, Deli Dewi Anggraini Didik Himmawan Diwa Ardhaza Elisa Ambarwati, Mei Elvika Fit Ari Shanti, Elvika Fit Ari Emy Koestanti Sabdoningrum Endah Puji Astuti, Endah Puji Erwin Fajriyati Nur Azizah Faqih Faizal Rahman Faris Salman Faza Fidyah Fitrawati, Fidyah Friska, Renny Ginanjar, Ajeng Haeriah Hafid Nur Muhammad Helmi Putra, Satria Hendra Purwanto Henny Sri Astuty Herman Heru Baskoro IGG Heru Marwanto Ikhwatul, Nisa Indra Sidharta Indro Kirono Ira Sari Yudaniayanti Irmayuni Isroani, Farida Jitarunas, Ahmad Jongudomkarn, Darunee Josua Yoprisyanto Juanita Kadek Rachmawati Karma Iswasta Eka Karo-karo, Desniwaty Kesuma, Indrawati Mara Kharisma Krisda Siagian Kurniawan , Bagus Lenni Fitri Letri Yuniar Harum Lutfiyati, Afi M. Anam Al Arif M. Hanif Satria Budi Mahdalena Maya Sari Mubarok, Fahmi Muhaammad Fitra Zambak Muhammad Almi Hidayat Muhammad Erwan Syah Muhammad Habibi Muhammad Hatta Muhammad Iqbal Muhammad Noor Hidayat Muslich Marzuki Mahdor Nadliroh, Fatihatun Nalendra, Agustinus D. Niken Wulandari Nisa Ikhwatul Noorjahan, Momin Nur Faliza Nurrohmad, Edi Onrizal Onrizal Permatasari, Fitri A. Pratiwi, Shella Purnamaningsih, Nur’Aini Purwandi, Nellsen Putra, Tria Sasangka Putu Suwarta Rachmawati Rahmahani, Jola Rahmani, Anggi Rahmanto , Endy Satya Ramadhan, Puja Rizqy Rara Irbah Fitriana Karimah Ratna Lestari Rengasamy, Dhanuskodi Retnosyari Septiyani Rohana Ronal Aprianto Rukmi, Dwi Kartika Septiyani, Retnosyari Shella Pratiwi Sherlyna Puasari Silva Izza Majida Soeharsono Soraya Tanjung, Febrian Sri Hidanah Sriyanto Subata , Imam Sukaris Supriyadi SUTIKNO Syaeful Anas Aklani Tatik Ariyati Teguh Wahyono TRI PRABOWO Tri Sunarsih Trilas Sardjito Warseno, Agus Wenny Savitri Wicaksana, Ancha Budi Wijanarko, Wahyu Wijayanti, Ika Dewi Wira Dharma Wiwik Misaco Yuniarti Yekki Yasmin Yoputra, Keaton Yunus, Muchammad Zahidi, Salman