Effect Of Conductive and Semi-Conductive Nanoparticles on The Partial Discharge Phenomenon in RBDP Oil Under Various Thermal Conditions

Equipment in an electric power system, such as a high voltage transformer, relies heavily on a critical component known as insulating material. This component plays a crucial role in preventing the risk of transformer failures. The insulating material is vital for ensuring proper electrical insulation, safeguarding against potential breakdowns, and maintaining the reliable operation of the transformer. Insulating materials in high voltage transformers consist of 3 types: air insulation, gas insulation, and liquid insulation. One type of liquid insulating material that is widely used is oil. Oil insulation has the advantage of being a good heat conductor, having high dielectric strength, and as a cooling medium. Currently, Nanofluids based on transformer oil have been developed and proven to increase their breakdown voltage and cooling ability. Hence, this study investigates the effects of conductive and semiconductive nanoparticles, namely iron (II, III) oxide (Fe3O4) and titanium dioxide (TiO2), on the partial discharge responses of palm oil-based nanofluids. These nanoparticles are chosen for their electron trapping capabilities and higher dissolution rates in a neutral suspension. Partial Discharge (PD) testing using mixed nanoparticles serves to assess insulation strength. This research paper focuses on exploring the influence of temperature on PD properties in mixed nanofluids. By examining 5 different temperatures, the aim is to gain insights into the temperature's impact on PD characteristics, PDIV (Partial Discharge Inception Voltage), and the PRPD (Phase Resolved Partial Discharge). This research demonstrates that adding 0.0166% TiO2 to palm oil significantly improves its performance as a nanofluid insulation material, particularly at high temperatures. TiO2 nanofluid offers superior aggregation stability and consistency, making it a practical choice for insulation applications. ======================================================================================================================== Perangkat dalam sistem tenaga listrik, seperti transformator tegangan tinggi, sangat bergantung pada komponen kritis yang disebut bahan isolasi. Bahan isolasi ini penting untuk mencegah kegagalan transformator. Ada tiga jenis bahan isolasi dalam transformator tegangan tinggi: udara, gas, dan cairan. Salah satu jenis cairan isolasi yang umum digunakan adalah minyak. Minyak isolasi memiliki kelebihan sebagai penghantar panas yang baik, kekuatan dielektrik tinggi, dan sebagai pendingin. Nanofluida berbasis minyak telah dikembangkan dan terbukti meningkatkan tegangan breakdown dan kemampuan pendinginan. Penelitian ini menyelidiki pengaruh nanopartikel konduktif dan semikonduktif, yaitu Fe3O4 dan TiO2, terhadap respons pelepasan sebagian dalam nanofluida berbasis minyak sawit. Pengujian Pelepasan Sebagian menggunakan nanopartikel campuran untuk menilai kekuatan isolasi. Penelitian ini fokus pada pengaruh suhu terhadap karakteristik pelepasan sebagian dalam nanofluida campuran. Dengan memeriksa lima suhu yang berbeda, penelitian ini bertujuan mendapatkan pemahaman tentang dampak suhu pada PD, PDIV, dan PRPD. Hasil penelitian menunjukkan penambahan 0,0166% TiO2 secara signifikan meningkatkan performa minyak sawit sebagai bahan isolasi nanofluida, terutama pada suhu tinggi. Nanofluida TiO2 menawarkan stabilitas agregasi yang superior, sehingga menjadi pilihan praktis untuk aplikasi isolasi