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All Journal International Journal of Electrical and Computer Engineering International Journal of Power Electronics and Drive Systems (IJPEDS) Majalah Ilmiah Teknologi Elektro Jurnal Teknik ITS IPTEK The Journal for Technology and Science Proceeding of the Electrical Engineering Computer Science and Informatics INTECOMS: Journal of Information Technology and Computer Science JAVA Journal of Electrical and Electronics Engineering JAREE (Journal on Advanced Research in Electrical Engineering) Jurnal Nasional Teknik Elektro dan Teknologi Informasi Prosiding Seminar Nasional Teknik Elektro, Sistem Informasi, dan Teknik Informatika (SNESTIK) Sewagati Majalah Ilmiah Teknologi Elektro
I Made Yulistya Negara
Teknik Elektro Institut Teknologi Sepuluh Nopember
Arts Humanities Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Languange, Linguistic, Communication & Media Public Health Social Sciences Other

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Alat Pengering Padi Portabel dengan Pemanas Elektrik yang Dilengkapi Thermocontrol guna Membantu Proses Pengolahan Padi di Desa Kembiritan Kabupaten Banyuwangi I Made Yulistya Negara; I Gusti Ngurah Satriyadi Hernanda; Dimas Anton Asfani
Sewagati Vol 6 No 4 (2022)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1317.376 KB) | DOI: 10.12962/j26139960.v6i4.141

Abstract

Negara Indonesia merupakan negara tropis yang mengalami dua musim yaitu musim penghujan dan kemarau. Memasuki akhir tahun biasanya akan terjadi musim hujan disebagian besar wilayah Indonesia yang mana sangat berdampak kepada para petani. Minimnya cahaya matahari pada musim penghujan menyebabkan para petani kesulitan untuk menjemur padi dari hasil panennya. Berkaca pada masalah tersebut, pengabdi pada kegiatan Pengabdian Kepada Masyarakat ini berupaya untuk merancang dan membuat sebuah alat pengering padi dengan efektivitas dan efisiensi yang tinggi. Alat pengering padi ini menggunakan gas sebagai bahan bakarnya dan didesain portable sehingga mudah untuk memindahkan dari lahan yang satu ke lahan yang lain. Tak hanya mengkonsep dan membuat alat pengering padi saja, tetapi kegiatan sosialisasi pun dilakukan untuk memperkenalkan cara penggunaan serta maintannace alat. Pengabdi berharap dengan adanya teknologi pengering padi portable bisa memudahkan petani dalam mengeringkan padinya.
Sosialisasi Bahaya Listrik bagi Rumah Tangga pada Hunian Baru Korban Letusan Semeru, Kabupaten Lumajang I Made Yulistya Negara; I Gusti Ngurah Satriyadi Hernanda; Dimas Anton Asfani; Titiek Suryani; Devy Kuswidiastuti; Achmad Affandi; Puji Handayani
Sewagati Vol 7 No 3 (2023)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7899.44 KB) | DOI: 10.12962/j26139960.v7i3.494

Abstract

Gunung Semeru terletak pada Kabupaten Lumajang dimana pada Sabtu, 4 Desember 2021 pukul 15.15 WIB terjadi erupsi yang berakibat di dusun sekitar lereng Gunung Semeru. Dusun Curah Kobokan merupakan salah satu dari beberapa daerah yang terdampak erupsi Gunung Semeru. Pasalnya, hampir semua rumah warga di lokasi itu hancur. Sebanyak 300 kepala keluarga dari Dusun Curah Kobokan mengungsi dari total 4.250 orang pengungsi. Terdapat hunian baru yang terletak di Desa Sumbermujur dan menjadi tempat pengungsian warga Dusun Curah Kobokan yang terdampak. Dengan adanya hunian baru ini dirasa warga memerlukan adanya pengetahuan terkait bahaya listrik bagi rumah tangga dan instalasi listrik yang benar. Oleh karena itu, melalui skema pengabdian masyarakat yang dilakukan Laboratorium Tegangan Tinggi Departemen Teknik Elektro ITS turut membantu menjawab permasalahan tersebut dengan menciptakan sebuah kegiatan penyuluhan Sosialisasi Bahaya Listrik Bagi Rumah Tangga Pada Hunian Baru Korban Letusan Semeru, Kabupaten Lumajang. Sasaran kegiatan yang dituju pada kegiatan pengabdian masyarakat ini adalah para warga Desa Sumbermujur, Kabupaten Lumajang.
Alat Pemberi Pakan Udang Otomatis Portabel Berbasis Panel Surya guna Membantu Proses Budidaya Tambak Udang di Desa Tambak Ploso Kabupaten Lamongan Dimas Anton Asfani; I Gusti Ngurah Satriyadi Hernanda; I Made Yulistya Negara; Suwadi; Affandi; Devy Kuswidiastuti; Puji Handayani; Titiek Suryani
Sewagati Vol 7 No 3 (2023)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3587.289 KB) | DOI: 10.12962/j26139960.v7i3.497

Abstract

Kabupaten Lamongan merupakan salah satu wilayah yang memiliki tambak udang seluas 932,29 Ha. Salah satu tambak yang terkenal di Lamongan adalah tambak udang yang berisi udang udang windu (Penaeus monodon) dan udang vaname (Litopenaeus vannamei). Berdasarkan hasil produksi maka perlu dilakukan pembudidayaan secara intesif untuk meningkatkan hasil produksi dan dapat unggul di pasar lokal maupun internasional. Salah satu faktor adalah dalam hal pemberian pakan pada udang yang merupakan hal penting dalam kegiatan pembudidayaan udang. Namun sayangnya saat ini sistem pemberian makan pada udang masih sangat bergantung dengan sumber daya manusia yang dilakukan secara manual. Berkaca pada masalah tersebut, pengabdi pada kegiatan pengabdian kepada masyarakat ini berupaya untuk merancang dan membuat sebuah alat pemberi pakan otomatis yang menggunakan solar panel sebagai sumber tenaganya. Tak hanya membuat konsep dan alat saja, tetapi kegiatan sosialisasi pun dilakukan untuk memperkenalkan cara menggunakan serta maintenance alat. Pengabdi berharap dengan adanya teknologi pemberi pakan otomatis bisa memudahkan dalam pemberian pakan udangnya.
Analisis Karakteristik Arus dan Tegangan pada Inisiasi Feroresonansi Transformator Tegangan Rendah I Gusti Ngurah Satriyadi Hernanda; I Made Yulistya Negara; Adi Soeprijanto; Dimas Anton Asfani; Mochammad Wahyudi; Daniar Fahmi
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 7 No 2: Mei 2018
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1195.58 KB)

Abstract

Ferroresonance is an interaction phenomenon between non-linear inductance and capacitance that initiates abnormal waveform of current and voltage. This phenomenon is very sensitive to system parameter and initial condition. In this paper, ferroresonance initiation involved a basic circuit of series ferroresonance with variation of source voltage magnitude on a single phase low voltage transformer. The scheme of experiment was based on the case of transformer energizing. The trends of current and voltage waveform on the primary windings were investigated and transformed by using Fast Fourier Transform (FFT). The harmonics spectrum was then employed to identify the feroresonance mode and calculate the Total Harmonics Distortion (THD) of current and voltage. The experimental results showed that the higher source voltage magnitude caused the ferroresonance responses to be seen more clearly. It was indicated by the more distorted waveform, the higher odd harmonics frequency amplitude especially for 150 Hz, and the greater THD. Based on the harmonics spectrum and wave period, the ferroresonance responses were identified as fundamental mode. The effects of initial conditions, such as residual flux of transformer and capacitor charge, were also seen on the distorted wave peak during transient condition. In addition, the difference of waveform between normal and ferroresonance condition could be more easily observed on the voltage than the current. The waveforms of current and voltage during experiment had been verified by using simulation.
Optimasi Perencanaan Operasi Pembangkit Listrik Berbasis Mixed Integer Linear Programming (MILP) Pada Sistem Isolated Selayar Agung Wicaksono; Rony Seto Wibowo; I Made Yulistya Negara
INTECOMS: Journal of Information Technology and Computer Science Vol 7 No 3 (2024): INTECOMS: Journal of Information Technology and Computer Science
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/intecoms.v7i3.9170

Abstract

This study explores the integration of fossil and renewable energy generators on Selayar Island, focusing on optimizing Diesel Power Plants (PLTD) and Solar Power Plants (PLTS). Using Mixed-Integer Linear Programming (MILP) for generator scheduling, simulations reveal that a 15% rotational backup constraint positively impacts operational costs and system reliability. The findings provide practical recommendations for operators to enhance efficiency, reduce costs, and improve overall system reliability in the context of hybrid energy systems.
Sosialisasi Serta Pembuatan Buku Panduan Mengenai Bahaya dan Mitigasi Petir Guna Mengurangi Resiko Tersambar Petir di Desa Ngendut, Ponorogo Asfani, Dimas Anton; Negara, I Made Yulistya; Hernanda, I Gusti Ngurah Satriyadi; Handayani, Puji; Suryani, Titiek; Kuswidiastuti, Devy; Setijadi, Eko; Nugraha, Yurid Eka; Fahmi, Daniar
Sewagati Vol 8 No 3 (2024)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v8i3.840

Abstract

Sambaran petir merupakan salah satu bencana alam yang dapat menyebabkan korban jiwa dan kerugian material. Desa Ngendut, Ponorogo merupakan salah satu desa yang sering dilanda sambaran petir. Untuk mengurangi risiko tersambar petir di desa ini melalui skema pengabdian kepada masyarakat yang dilakukan Laboratorium Tegangan Tinggi Departemen Teknik Elektro ITS turut menjawab permasalahan tersebut dengan melakukan sosialisasi bahaya dan mitigasi sambaran petir serta pembuatan buku penangkal petir sederhana guna mengurangi risiko tersambar petir di Desa Ngendut, Ponorogo. Materi sosialisasi meliputi bahaya sambaran petir, dan cara menghindari sambaran petir, serta membuat buku panduan bahaya petir dan prosedur keselamatannya untuk memudahkan warga desa dalam memahami materi sosialisasi. Sasaran kegiatan penyuluhan pada kegiatan pengabdian masyarakat ini adalah para Warga Desa Ngendut, Kabupaten Ponorogo. Hasil dari sosialisasi ini telah meningkatkan kesadaran Warga Desa Ngendut bahaya sambaran petir dan meningkatkan kemampuan mereka dalam melakukan mitigasi sambaran petir.
Effect of the placement capacitor bank on electrical power quality in the ILST fan drive system Hermawan, Asep Dadan; Negara, I Made Yulistya; Nandar, Cuk Supriadi Ali; Prastawa, Andhika; Aryono, Nur Aryanto; Damara, Dio Randa; Dianti, Dwie Vannia; Nugraha, Heri
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 15, No 3: September 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v15.i3.pp1435-1445

Abstract

Power quality is a critical aspect of the effective and dependable operation of electrical systems. In today's technologically advanced world, where industries rely significantly on electricity, understanding and maintaining power quality is critical. National Research and Innovation Agency (BRIN) has an important laboratory for aerodynamic testing technology service activities in Indonesia. This facility contains a closed wind tunnel, a DC drive system, and a DC electric motor. This innovative fan drive system employs a parallel DC drive system, with the master and slave motors connected to a master DC drive system and a slave DC drive system, respectively. The usage of a new system results in poor electrical power quality, with a power factor value of less than 0.85, resulting in higher electricity costs and increased current, which has an impact on other equipment, such as a rise in temperature. To improve the quality of electrical power according to standard operating procedures and lower electricity bills, the current work evaluated the new system using field tests and literature studies on the impact of installing capacitor banks in parallel DC motor systems to boost the power factor value. This evaluation aims to improve the quality of the ILST parallel electric power system by including a capacitor bank in each motor.
Analysis of Breakdown Characteristics in Nanofluid Insulation Materials with Metal Particle Contamination Mubarok, Abdul Fattah; Asfani, Dimas Anton; Negara, I Made Yulistya; Fahmi, Daniar; Subekti, Hakim
JAREE (Journal on Advanced Research in Electrical Engineering) Vol 8, No 2 (2024): July
Publisher : Department of Electrical Engineering ITS and FORTEI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/jaree.v8i2.408

Abstract

Optimal insulation in transformers is essential to maintain their performance and reliability. However, insulation-related problems, particularly transformer oil contamination, often result in premature transformer failure. To address this issue, a solution has been proposed in the form of a nanofluid, a mixture of transformer oil, and nanoparticles. This study aims to investigate the impact of metal particle contamination on the breakdown and levitation voltage characteristics of nanofluids as liquid insulating materials. The nanofluids were prepared by mixing mineral oil with Fe3O4 nanoparticles at three different concentrations. Tests were conducted to evaluate the AC breakdown and levitation voltages for various contaminant metal particle sizes. The experimental results demonstrate that contaminant particle size has a significant impact on the breakdown voltage. The nanofluid with a concentration of 0.008% Fe3O4 exhibited superior breakdown voltage performance compared to mineral oil and 0.016% Fe3O4 nanofluid. Furthermore, an increase in the levitation stress was observed as the contaminant particle size increased. The findings of this study emphasize the importance of controlling contamination and selecting the appropriate concentration of nanoparticles to enhance transformer insulation performance. This study also highlights the necessity of monitoring the size of contaminant particles to prevent potential damage. Consequently, this study makes a significant contribution to the advancement of more reliable and efficient transformer insulation technology.
Analisis Karakteristik Fenomena Pre-Breakdown Voltage Berbasis Pengujian pada Media Isolasi Minyak I Made Yulistya Negara; Daniar Fahmi; Dimas Anton Asfani; Dwi Krisna Cahyaningrum
Jurnal Teknologi Elektro Vol 16 No 3 (2017): (September - December) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.2017.v16i03p20

Abstract

Pre-breakdown voltage is a phenomenon of dielectric breakdown affecting insulation’s performance. The faster pre-breakdown voltage of insulation, the more significant its dielectric degradation. In this paper, pre-breakdown voltage in oil insulation was investigated by using DC high voltage in laboratory scale. Under testing, the streamer development was recorded by using a high-resolution camera. The measured current was synchronized with an image that was picked up during the oil insulation testing. By this experiment, the characteristics of the current in phenomenon pre-breakdown voltage at oil insulation was studied. The results showed that the measured current of pre-breakdown phenomenon in oil insulation under 28 kV to 30 kV excitation voltage is in a range 100 mA - 150 mA.
Influence of metal particles shape on direct current voltage electric properties of nanofluids Fahmi, Daniar; Akbar, Muhammad Fadlan; Yulistya Negara, I Made; Hernanda, I Gusti Ngurah Satriyadi; Asfani, Dimas Anton; Zaidan, Risyad Alauddin; Fadhilah, Arkan
International Journal of Electrical and Computer Engineering (IJECE) Vol 15, No 1: February 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v15i1.pp56-66

Abstract

It is widely recognized that the application of nanoparticles has the potential to improve the dielectric properties of transformer oil. Nevertheless, there is a scarcity of studies that have utilized pure nanofluids, and in practical applications, it is inevitable for transformer oil to become contaminated. Therefore, this study conducted tests to investigate how the shape and size of metal contaminants impact the dielectric performance of Fe3O4 nanofluids. The findings from the levitation voltage test indicate that as the size and diameter of the particle increase, the levitation voltage value measured also increases, and conversely. Moreover, a higher concentration of nanoparticles leads to a higher measured levitation voltage value. On the other hand, the breakdown voltage test results demonstrate that larger and sharper particles result in lower measured breakdown voltage values, and vice versa. The simulation outcomes regarding electric field distribution reveal that larger and sharper particles correspond to higher measured electric field values, while the opposite is true for smaller and less sharp particles.
Co-Authors A A Gd Dharma Putera Achmad Affandi Adi Soeprijanto Aditya Dwi Nugraha Affandi Afif, Yusrizal Agung Wicaksono Akbar, Muhammad Fadlan Ali Musyafa Ardyono Priyadi Arief Budi Ksatria Arwindra Rizqiawan Aryono, Nur Aryanto Aulidina Dwi Nur Andriyanti Azmi Wicaksono Bambang Sugiyantoro Damara, Dio Randa Daniar Fahmi, Daniar Dedet Candra Riawan Devy Kuswidiastuti Dianti, Dwie Vannia Dicky Wahyu Darmawan Dicky Wahyu Darmawan Dimas Anton Asfani Dwi Krisna Cahyaningrum Fadhilah, Arkan Feby Agung Pamuji Gilang Adityasakti Hadwim Septiawan Heri Nugraha Hermawan, Asep Dadan Husnah, Nurul I Gusti Ngurah Satriyadi Hernanda Imam Robandi Indra Sidharta Irmawati, Novia Ayu Ksatria, Arief Budi Liga Primabaraka M, Arief Made Yudha Pranadiksa Giri Made Yudhi Setyawan Mat Syai’in Mochammad Wahyudi Mubarok, Abdul Fattah Muhammad Eko Septiawan Muhammad Sulthon Novera Rega Musthofa, Arif Nandar, Cuk Supriadi Ali Neisya Islamey Rifma Ni Ketut Aryani Noor Akhmad Setiawan Nugraha, Yurid Eka Prajanuarto, Bimo Prastawa, Andhika Puji Handayani R. Wahyudi Rajavalens, Muhammad Roikhana Farista Dewira Rony Seto Wibowo Rukmana, Maman Ryan Nurdianto Satria Seventino Simamora Setijadi, Eko Siti Sudatul Aisyah N Sitorus, Philip Nathanael Erlangga Soedibyo Soedibyo Subekti, Hakim Sudatul Aisyah N, Siti Surya Dwi Kisdarmawan Suwadi Suwadi Titiek Suryani Tri Desmana Rachmildha, Tri Desmana Wildan Rahadian Putra Winanda Riga Tamma Yoga Uta Nugraha Yuniarto, Muhammad Nur Zaidan, Risyad Alauddin