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AUTHOR(S): Dimas Anton Asfani, I Made Yulistya Negara, I G. N. Satriyadi Hernanda, Daniar Fahmi, Alvan Ariefta Rahman, Muhammad Fadlan Akbar Akilla Farri Santosa, Iqbal Rizqulloh
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ABSTRACT Nanotechnology is currently experiencing rapid development, especially in high-voltage equipment. One of them is a nanofluid as an insulating medium to replace transformer oil, which was developed by mixing nanoparticles with oil. Many studies have developed nanofluids and found that mixed nanoparticles can disperse with oil. The advantages of nanofluids include improved thermal properties, increased dielectric strength, and accelerated cooling of the transformer oil insulation. One type of conductive nanoparticle, Fe3O4, has been widely studied and tested with respect to the increase in the breakdown voltage. The breakdown condition of nanofluids does not escape the partial discharge (PD) phenomenon during pre-breakdown conditions. Therefore, in this study, a Fe3O4 nanofluid PD detection test was carried out to determine the characteristics of PD. The PD detection test used an electrical method with a measurement circuit (RC circuit) tool and an AC high-voltage generator. Other tests were also carried out with Particle Size Analyzer (PSA) testing to determine the stability of the nanofluids and electrical conductivity tests to determine the conductive value of the nanofluids. Significant nanofluid deposition was observed after being left for 170 hours. Thus, the results of the comparison of the 24 hours and 170 hours PSA nanofluid testing obtained the largest value of 47.8 and the smallest value of 24.76. The results of the electrical conductivity test showed that doses of more than 0.008% nanoparticles Fe3O4 caused an increase in the conductivity value. The results of the PD characteristics obtained the average value of the PDIV that was left for 24 hours (14.12 kV - 12.73 kV) and 170 hours (13.45 kV-11.43 kV). The PDIV value is in line with the breakdown voltage value, and its value decreases due to the increase in nanoparticle dosage. Analysis of the PRPD patterns. The PRPD pattern of the average phase shift of the PD point that appears in the positive cycle is in the 8.4°–358° phase, and in the negative cycle at 6.9° - 357.7°. The number of PRPD points on the nanofluid Fe3O4 was left for 24 hours more than 170 hours. |
KEYWORDS Fe3O4, Mineral Oil, Nanoparticle, Partial Discharge, PDIV, PRPD |
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Cite this paper Dimas Anton Asfani, I Made Yulistya Negara, I G. N. Satriyadi Hernanda, Daniar Fahmi, Alvan Ariefta Rahman, Muhammad Fadlan Akbar Akilla Farri Santosa, Iqbal Rizqulloh. (2025) Enhancing the Dielectric Strength of Agglomerated Insulation Oil Using Fe3O4 Nanoparticles: A Study on Partial Discharge Behavior. International Journal of Power Systems, 10, 1-11 |
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