Electric energy is a fundamental necessity, especially for factories requiring a substantial supply of electricity. Thus, to generate electricity, factories utilize generators, such as Gas Turbine Generators (GTGs) employed by PT. Pupuk Sriwidjaja. The generators at PT. Pupuk Sriwidjaja are interconnected, forming a system where each generator is linked to the others. In the electrical power sy…
This research aims to analyze ozone production using the Dielectric Barrier Discharge (DBD) method with a rod–spiral electrode configuration varied at electrode gaps of 1.0 mm, 1.5 mm, and 2.0 mm. The study was conducted at the High Voltage and Electrical Measurement Laboratory, Faculty of Engineering, Sriwijaya University. The research method includes literature review, the design and fabric…
This study discusses the comparison of the breakdown voltage values of sunflower seed oil before and after being added with Ascorbic Acid and Tertiary Butyl Hydroquinone (TBHQ) to obtain a filler composition with maximum breakdown voltage strength. Tests were carried out on sunflower seed oil samples with the addition of antioxidants Ascorbic Acid (C₆H₈O₆) and Tertiary Butyl Hydroquinone …
The development of solar panel-powered electric boats for use in lake waters requires in-depth research given the unique characteristics of lake waters. Although water currents in lakes are calmer than the sea, more extreme weather conditions, varying water depths, and interactions with ecosystems within the lake pose challenges. This research aims to explore the potential and challenges in the…
Population growth and rapid technological development cause the need for electrical energy to increase. One of the efforts made in meeting these needs is the proper electrical energy distribution process, so that the increase in electrical energy must be balanced with sufficient electrical energy supply and good quality power so that the electricity distributed does not experience voltage drops…
This research focuses on testing the performance of sodium-ion batteries using variations in NaNO₃ electrolyte concentrations (1M and 4M) and solvent types (H₂O and DMSO), with the aim of determining the most effective combination. The objective of this study is to analyze the electrochemical characterization of TiO₂/NaNiPO₄ electrodes and to assess the influence of solvent and electrol…
This research uses SnO₂ powder as the anode and NaFePO₄ powder was synthesized using the sol-gel method as the cathode, combined with binchotan carbon, PANi, and DMSO solvent, stirred until forming a paste, which was then coated and dried to form a thin sheet. NaNO₃ salt was used as the electrolyte with varying concentrations, while DMSO and H₂O. The results of characterization using SE…
Penelitian ini dilakukan untuk mengetahui area rembesan air di sekitar Danau Ranca Trap serta mengidentifikasi struktur litologi bawah permukaan dan jalur aliran yang memengaruhi rembesan, dengan menggunakan metode geolistrik tahanan jenis konfigurasi Wenner-Schlumberger. Pengukuran dilakukan pada 9 lintasan sepanjang 46 metere dengan spasi 2 meter yang tersebar mengelilingi danau. Hasil pemode…
Sungai memberikan peranan yang sangat besar bagi perkembangan peradaban manusia di seluruh dunia, antara lain sebagai sumber air minum untuk kebutuhan utama bagi kehidupan manusia, irigasi untuk kebutuhan pertanian, kebutuhan industri, sarana transportasi dan objek wisata. Seiring dengan perkembangan zaman, kebutuhan manusiapun bertambah dan sungai dimanfaatkan sebagai sumber pembangkit tenaga …
This study aims to determine the effect of variations in SiO₂ layer thickness on the Partial Discharge Inception Voltage (PDIV) and Breakdown Voltage (BDV) values in epoxy resin composites. The SiO₂ layer was prepared using a TEOS-based sol-gel method and applied by spray coating technique on the sample surface. The thickness variations tested were 20 µm, 30 µm, 40 µm, 50 µm, and 60 µm…
This research aims to develop an Indonesian news text classification system to distinguish between formal and non-formal texts. This classification system utilises the Long Short-Term Memory (LSTM) algorithm with reference to the Big Indonesian Dictionary (KBBI). The development process involves text preprocessing techniques, such as data cleaning, lower case, remove punctuation, tokenising, st…
Skripsi ini melaporkan hasil penelitian pengaruh dari kelembaban terhadap karakteristik tegangan tembus minyak mineral nynas nytro libra sebagai minyak isolasi dengan ditambah beberapa pengisi seperti Fe3O4, MgCl2, dan NaCl pada kelembaban relatif yang berbeda-beda. Pengujian dilakukan terhadap sampel nynas nytro libra oil dengan penambahan tiga pengisi pada konsentrasi 0,05;0,1;0,2 dalam g/L u…
Penelitian ini membahas mengenai peningkatan kekuatan dielektrik pada kertas kraft yang diimpregnasi minyak kedelai berpengisi campuran SiO2 dan CQD dengan konsentrasi total 0,01 wt%. Kertas kraft yang akan diuji berbentuk persegi empat dengan panjang sisi 30 mm dan ketebalan 0,08 mm. Sampel uji akan direndam menggunakan bahan pengisi SiO2 dan CQD dengan variasi waktu perendaman 24, 48, 72, 96,…
Penelitian ini melaporkan hasil penelitian mengenai pengaruh polutan dari kendaraan bermotor yang melintasi Jalan Musi 2 Palembang pada material isolasi epoxy resin. Pengukuran yang dilakukan yaitu sudut kontak (contact angle) dan arus bocor (leakage current). Pengukuran sudut kontak pada sampel tanpa pengkondisian sebagai sampel kontrol, 120 jam; 168 jam; dan 216 jam didapatkan nilai sudut kon…
Skripsi ini membahas identifikasi pola Partial Discharge (PD Pattern) pada switch Larken EB-21 dengan variasi penurunan tekanan udara Proses pengukuran dilakukan dengan sistem elektroda switch yang ditempatkan di dalam gas test chamber. Selanjutnya dilakukan proses vacuum untuk mengurangi tekanan udara yang terdapat di dalam gas test chamber dengan nilai tekanan tekanan udara dari 766,5 mmHg, l…
Penelitian ini mempelajari pengaruh rongga udara (void) dalam isolasi epoxy resin terhadap karakteristik partial discharge (PD). Pengujian dilakukan pada sampel epoxy resin multilayer dengan ketebalan masing-masing lembaran ±0,35 mm dan ketebalan total ±1,05 mm dimana pada bagian tengah sampel diberikan artificial void masing-masing lembar sampel, dengan volume void total 27,49mm3. Tegangan t…
Penelitian ini melaporkan hasil studi tentang pengaruh kontaminan kabut garam(salt-fog) pada silicone rubber sebagai fungsi waktu pengkondisian terhadap sudut kontak (contact angle) dan resistivitas permukaan (surface resistivity). Resistivitas permukaan dihitung berdasarkan nilai arus bocor pada permukaan sampel. Hasil pengukuran sudut kontak untuk kelompok kontrol adalah sebesar 109,6º. Untu…
This study discusses the effect of temperature on Bakelite Sheet material. Tests were conducted on Bakelite Sheet samples treated with temperatures of 150°C, 200°C, and 250°C with a heating time of 30 minutes. As a comparison, tests were also conducted on unheated Bakelite Sheet control samples. The samples were made in the form of sheets with a length of 50 mm, a width of 50 mm, and a thick…
This study examines the effect of adding a mixed filler of Cerium Oxide (CeO₂) and Silicon Dioxide (SiO₂) nanoparticles on the dielectric characteristics of corn oil as an environmentally friendly alternative transformer insulating oil. The CeO₂–SiO₂ nanoparticle mixture was prepared in a 1:1 ratio with concentrations of 0,05; 0,1; 0,15; and 0,2 wt%. The experimental procedures includ…
This paper focuses on analyzing the effect of moisture content in Virgin Coconut Oil (VCO) on the dielectric properties of pressboard as a transformer insulation material. The experiments were conducted on two types of samples: non-impregnated pressboard and pressboard impregnated with VCO for 6, 12, and 24 hours. The tested parameters included moisture content, relative permittivity, Partial D…
Silicone oil is one of the insulating liquids used in power transformers due to its high thermal stability and excellent dielectric properties. However, during operation, this oil may degrade because of thermal aging and contamination by solid particles such as Kraft paper. This study aims to analyze the effect of thermal aging and the presence of Kraft paper particles on the breakdown voltage …
This study aims to analyze the breakdown voltage characteristics of a mixture of mineral oil and Extra Virgin Olive Oil (EVOO) with the addition of Aluminium Oxide (Al₂O₃) nanoparticles as filler. Mineral transformer oil is widely used due to its excellent dielectric strength but is not environmentally friendly. As an alternative, Extra Virgin Olive Oil, which is biodegradable and has a hig…
This study aims to analyze the effect of addition of ZnO, Al2O3, and TiO2 nanoparticles on breakdown voltage values. The test was conducted on soybean oil samples with varying concentrations of 0,1, 0,2, 0,3, and 0,4 wt% of each nanoparticles, as well as pure soybean oil to observe the effect of adding ZnO, Al2O3, and TiO2 nanoparticles. This test used ∅ 13 mm sphere electrode system with a 2…
This research investigates the enhancement of PDIV and Breakdown Voltage in Epoxy Resin insulation material filled with MgO and ZnO at concentrations of 1 wt%, 2 wt%, 3 wt , 3,5wt% and 4 wt%. Testing was performed using a needle-plane electrode with a 1 mm gap, and AC voltage was ramped up at 100 V/s for PDIV and 1 kV/s for . Test results showed that adding MgO and ZnO improved insulation perfo…