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Nova Elysia Ntobuo
Universitas Negeri Gorontalo
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Journal : Journal Of Renewable Energy Engineering

 1 
KARAKTERISTIK TEGANGAN TEMBUS MINYAK TRAFO SHELL DIALA B MENGGUNAKAN MATERIAL ELEKTRODA BERBAHAN STAINLES STEEL, KUNINGAN, TEMBAGA DAN ALUMUNIUM Amali, Kamil; Mohamad, Yasin; Yusuf, Taufik Ismail; Ntobuo, Nova Elysia
Journal Of Renewable Energy Engineering Vol. 2 No. 1 (2024): Journal Of Renewable Energy Engineering (April)
Publisher : Program Vokasi-Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56190/jree.v2i1.24

Abstract

Transformer oil insulation breakdown voltage testing is usually carried out at high AC voltage using the SPLN 49-1 1982 standard. The electrodes used are hemispherical electrodes with a distance between the electrodes of 2.5mm. The breakdown voltage value of transformer oil insulation that meets the standards according to SPLN 49-1 of 1982 is 30 kV/2.5mm. In this research, a new Shell Diala B brand transformer oil insulation breakdown voltage test was carried out using the SPLN 49-1 1982 testing standard. The novelty of this research is using various electrode shapes and different electrode materials to test the breakdown voltage of the transformer oil's liquid insulation. The method used in this research is an experimental method where the test is adapted to the SPLN 49-1 standard of 1982. The electrodes used are ball, needle, and plate electrodes. Based on test results at a distance between electrodes of 2.5 mm, it was found that the breakdown voltage characteristics of stainless steel, brass, copper, and aluminum electrode materials varied and did not meet the SPLN 49-1 1982 standard, namely 30 kV/2.5 mm.
STUDI NILAI RESITENSI ELEKTRODA PENTANAHAN MENGGUNAKAN METODE TIGA KUTUB PADA KONDISI TANAH BERBEDA Kamil Amali, Lanto Mohamad; Mento, Isnain Sarjan; Salim, Sardi; Tolago, Ade Irawati; Ntobuo, Nova Elysia; Utama, Komang Arya
Journal Of Renewable Energy Engineering Vol. 2 No. 2 (2024): Journal Of Renewable Energy Engineering (Oktober)
Publisher : Program Vokasi-Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56190/jree.v2i2.47

Abstract

The grounding system serves as a safe path for electrical current to flow to the ground, which is important in preventing the risk of equipment damage and safety hazards. One of the critical parameters in this system is the resistance of the ground electrode, which can be measured using the three-point method. Based on PUIL 2000, the recommended grounding resistance value for electrical installations must be less than 5 ohms so that the system can work optimally and safely. The three-pole method is known to be accurate because it minimizes the influence of the environment around the electrode. However, factors such as soil type, humidity, and mineral content greatly influence the resistance of the ground electrode. Therefore, this study aims to evaluate the resistance of grounding electrodes in various types of soil, such as clay, swamp soil, damp sandy soil, dry soil, and rocky soil. Research results: The best grounding electrode resistance values ​​were obtained in clay and moist sandy soil (coastal). Meanwhile, the resistance value of the ground electrode for dry soil, rocky soil, and swamp soil does not meet the standard of ≤ 5 ohms. The factors that cause the resistance value of the ground electrode not to meet the standard are because in swampy soil the soil is dominated by insulating organic material and low content of conductive minerals. Also, moisture imbalance, electrode corrosion, and less-than-optimal electrode installation contribute. At the same time, dry soil and rocky soil are characterized by having a high level of resistivity due to low water and mineral content and a texture that does not support optimal electrical conductivity where field measurement results are not yet available. Meets the standard ≤ 5 Ω
Tegangan Tembus STUDI TEGANGAN TEMBUS MATERIAL ELEKTRODA DALAM MEDAN LISTRIK SERAGAM PADA MEDIUM ISOLASI UDARA: STUDI TEGANGAN TEMBUS MATERIAL ELEKTRODA DALAM MEDAN LISTRIK SERAGAM PADA MEDIUM ISOLASI UDARA Karim, Aco; Amali, Lanto Mohamad Kamil; Yasin Mohamad; Ilham, Jumiati; Ntobuo, Nova Elysia
Journal Of Renewable Energy Engineering Vol. 3 No. 1 (2025): Journal Of Renewable Energy Engineering
Publisher : Program Vokasi-Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56190/jree.v3i1.55

Abstract

Tegangan tembus merupakan salah satu parameter penting dalam sistem isolasi listrik yang menentukan batas kemampuan suatu medium dalam menahan medan listrik sebelum terjadi pelepasan muatan listrik (breakdown). Material elektroda yang digunakan dalam sistem bertegangan tinggi sangat mempengaruhi distribusi medan listrik dan nilai tegangan tembus yang dihasilkan. Oleh karena itu, penelitian ini dilakukan untuk mengkaji karakteristik tegangan tembus dari berbagai jenis material elektroda dalam medan listrik seragam. Studi ini secara khusus membandingkan empat jenis logam, yaitu stainless steel, aluminium, tembaga, dan kuningan, yang umum digunakan dalam aplikasi kelistrikan. Pengujian dilakukan secara eksperimental di Laboratorium Tegangan Tinggi dengan menggunakan konfigurasi elektroda bola-bola, jarum-jarum, dan pelat-pelat pada medium udara. Hasil pengujian menunjukkan bahwa material elektroda memiliki pengaruh signifikan terhadap besar tegangan tembus. Stainless steel secara konsisten menunjukkan performa terbaik dengan nilai tegangan tembus tertinggi pada semua konfigurasi, yakni 8,07 kV (bola-bola), 8,21 kV (jarum-jarum), dan 6,37 kV (pelat-pelat). Sebaliknya, tembaga menghasilkan tegangan tembus terendah, khususnya pada konfigurasi pelat-pelat sebesar 3,27 kV. Aluminium dan kuningan menunjukkan hasil yang bervariasi, namun masih di bawah performa stainless steel
PENGARUH CAMPURAN CULLET DAN GYPSUM TERHADAP KEMAMPUAN ISOLASI DIELEKTRIK TANAH LIAT SEBAGAI BAHAN ISOLATOR LISTRIK Djafar, Moh. Wahyu; Amali, Lanto Mohamad Kamil; Yusuf, Taufiq Ismail; Ntobuo, Nova Elysia
Journal Of Renewable Energy Engineering Vol. 3 No. 1 (2025): Journal Of Renewable Energy Engineering
Publisher : Program Vokasi-Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56190/jree.v3i1.56

Abstract

Penelitian ini bertujuan untuk meningkatkan sifat isolasi dielektrik material isolator berbahan dasar tanah liat melalui penambahan cullet dan gypsum, hal ini menjadi upaya penting bagi pengembangan material isolator yang efisien. Tanah liat, sebagai sumber daya melimpah, memiliki potensi besar namun membutuhkan peningkatan performa dielektrik. Metode eksperimental digunakan untuk membuat tujuh variasi sampel berbentuk persegi (40 mm×40 mm×10 mm) dengan proporsi cullet (5%, 10%), gypsum (5%, 10%), dan kombinasinya. Sampel diuji tegangan tembus menggunakan tegangan tinggi AC. Hasil menunjukkan bahwa penambahan cullet dan gypsum secara konsisten meningkatkan tegangan tembus, dengan kombinasi 10% cullet + 10% gypsum mencapai nilai tertinggi 43,78 kV (4,38 kV/mm). Meskipun belum memenuhi standar PLN (9,85 kV/mm), penelitian ini menginformasikan potensi aditif dalam meningkatkan performa isolasi khususnya berbahan dasar tanah liat
Co-Authors Abd Wahidin Nuayi Abdul Haris Odja Adeningsih, Sri Astika Amali, Kamil Amali, Lanto M. Kamil Asri Arbie Assagaf, Halisa Bau, Rika Firasmawaty Buhungo, Trisnawaty Junus Citron S Payu Daud, Manda Nur Aisia Dewa Eka Setiawan Dewa Gede Eka Setiawan Dewi Diana Paramata Djafar, Moh. Wahyu Djano, Apriyansah Djola, Tita Aprianti Fachry Abda El Rahman Hadju, Asrawati Hadju, Asri Febriyani Hajrah Safitri Hermalasari, Devi I Made Hermanto Iis Rahayu Timbola Ilan Sunga Ilato, Nursuciani Radja Ingka M. Djafar Julkifli Adam Jumiati Ilham Kamil Amali , Lanto Mohamad Karim, Aco Komang Arya Utama Kuengo, Nur Rahma Kurniawan Ali Male Lanto M. Kamil Amali Lanto Mohamad Kamil Amali Lanto Ningrayati Amali Mahmud, Andini Pratiwi M. Mahmud, Laila Magfirah Masra Latjompoh Masri Kudrat Umar Masrid Pikoli Mento, Isnain Sarjan Moh. Sahyan A. Mile Mohamad, Wahyu Muzizat Mohamat Irkan Darise Mohi, Margareta Putri Mokoagow, Annisa Mokoginta, Chindy Dahlia Muhammad Yunus Muhammad Yunus Muhammad Yusuf Muhammad Yusuf Muhammad Yusuf Mursalin Mursalin Mursalin . Nancy Katili Novita Novi Ointu Nur Arny Chairunnisa Nurfadlun Faradila Dalu Nurhayati Nurhayati Nurhayati Otoluwa, Sri Maulina Palakua, Hendra Palari, Nurafni Dg. Payu, Citron Polihito, Nurhalima Primayanti, Tria Ratha, Doung Ritin Uloli S.Payu, Citron Samatowa, Lukman Samawati, Alfandi Sardi Salim Siti Fatimah Sri Astri Suo Sri Windi Akuba Stiosarint, Yulantika Supartin, Supartin Taufik Ismail Yusuf Taufiq Ismail Yusuf Tirtawaty Abdjul Tirtawaty Adjul Tita Aprianti Djola Tolago, Ade Irawati Wiweka, Kiati Yasin Mohamad Yasin Mohamd