Alfarisi, Yusril Firman (2026) Pengaruh Kontaminan Tembaga Terhadap Karakteristik Tegangan Tembus Dan Partial Discharge Minyak Soybean FR3 Yang Dimodifikasi Dengan Nanopartikel Al2O3, TiO2, Dan Fe3O4. Other thesis, Institut Teknologi Sepuluh Nopember.
![[thumbnail of 5022221072_Undergraduate_Thesis.pdf]](http://repository.its.ac.id/style/images/fileicons/text.png) |
Text
5022221072_Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (6MB) | Request a copy |
Abstract
Minyak transformator natural ester Soybean FR3 menjadi alternatif karena memiliki sifat memiliki sifat dielektrik yang baik daripada minyak mineral. Penambahan nanopartikel dapat meningkatkan performa dielektrik, tetapi kontaminasi partikel tembaga dari degradasi belitan transformator berpotensi menurunkan kekuatan dielektrik minyak. Studi ini bertujuan menganalisis pengaruh kontaminan tembaga terhadap karakteristik tegangan tembus dan partial discharge minyak Soybean FR3 yang dimodifikasi dengan nanopartikel Al₂O₃, TiO₂, dan Fe₃O₄. Pembuatan nanofluida dilakukan menggunakan metode dua langkah pada konsentrasi optimal yaitu 0,016% Al2O3; 0,033% TiO2; dan 0,0003% Fe3O4. Pada setiap nanofluida dilakukan penambahan variasi massa tembaga 0; 0,1; 0,3; 0,5; 0,8; dan 1 gram tembaga. Pengujian tegangan tembus dengan konfigurasi elektroda sphere-to-sphere dan needle-to-plane. Hasil penelitian menunjukkan bahwa penambahan kontaminan dengan konsentrasi 1 gram tembaga pada nanofluida Al2O3 menurunkan nilai tegangan tembus sebesar 43,5 kV (79,7%) dari 54,79 kV, pada TiO2 sebesar 45,83 kV (79,3%) dari 57,5 kV , dan pada Fe3O4 sebesar 42,82 kV (80,8%) dari 52,96 kV. Karakteristik partial discharge yaitu peak charge terjadi pada siklus positif, pada nanofluida Al2O3 sebesar 468.010 pC, TiO2 sebesar 134.382 pC, dan Fe3O4 sebesar 598.818 pC.
=======================================================================================================================================
Soybean FR3 natural ester transformer oil has emerged as an alternative because it has better dielectric properties than mineral oil. The addition of nanoparticles can improve dielectric performance; however, contamination by copper particles resulting from transformer winding degradation may reduce the dielectric strength of the oil. This study aims to analyze the effect of copper contaminants on the breakdown voltage and partial discharge characteristics of Soybean FR3 oil modified with Al₂O₃, TiO₂, and Fe₃O₄ nanoparticles. The nanofluids were prepared using a two-step method at optimum concentrations of 0.016% Al₂O₃, 0.033% TiO₂, and 0.0003% Fe₃O₄. Copper particles were then added to each nanofluid at mass variations of 0, 0.1, 0.3, 0.5, 0.8, and 1 g. Breakdown voltage tests were conducted using sphere-to-sphere and needle-to-plane electrode configurations. The results showed that the addition of 1 g of copper contaminants reduced the breakdown voltage of the Al₂O₃ nanofluid by 43.50 kV, equivalent to 79.7% of its initial value of 54.79 kV. In the TiO₂ nanofluid, the breakdown voltage decreased by 45.83 kV, equivalent to 79.3% of its initial value of 57.50 kV. Meanwhile, in the Fe₃O₄ nanofluid, the breakdown voltage decreased by 42.82 kV, equivalent to 80.8% of its initial value of 52.96 kV. The partial discharge characteristics showed that the peak charge occurred during the positive half-cycle, reaching 468,010 pC in the Al₂O₃ nanofluid, 134,382 pC in the TiO₂ nanofluid, and 598,818 pC in the Fe₃O₄ nanofluid
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Kontaminan Tembaga, Nanofluida, Partial Discharge, Soybean FR3, Tegangan Tembus. |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3401 Insulation and insulating materials |
| Divisions: | Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Yusril Firman Alfarisi |
| Date Deposited: | 30 Jul 2026 08:31 |
| Last Modified: | 30 Jul 2026 08:31 |
| URI: | http://repository.its.ac.id/id/eprint/137555 |
Actions (login required)
 |
View Item |