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All Journal Jurnal Teknik Elektro Jurnal Media Elektro : Journal of Electrical Power, Informatics, Telecommunication, Electronics, Computer and Control System Journal of Energy and Electrical Engineering (JEEE) Electrices : Jurnal Otomasi Kelistrikan dan Energi Terbarukan Journal of Electrical Engineering and Computer (JEECOM) Jurnal Pengabdian Kepada Masyarakat (JPKM) Jurnal Teknologi Jurnal Ilmiah Fakultas Sains dan Teknik Universitas Nusa Cendana Jurnal Rekayasa elektrika Jurnal Lembaga Pengabdian Kepada Masyarakat Undana
Wellem Fridz Galla
Universitas Nusa Cendana
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Social Sciences Other

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PENENTUAN JUMLAH UNIT DAN KAPASITAS PEMBANGKIT SESUAI POLA BEBAN PADA PLTD FAOBATA DI KABUPATEN NGADA Wellem F. Galla
Jurnal Media Elektro Vol 5 No 2 (2016): Oktober 2016
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jme.v0i0.6200

Abstract

Penelitian ini bertujuan untuk menentukan jumlah unit dan kapasitas pembangkit sesuai pola beban pada PLTD Faobata di Kabupaten Ngada. Penelitian ini bersifat deskriptif yakni menentukan jumlah unit dan kapasitas pembangkit pada PLTD Faobata Kabupaten Ngada, berdasarkan pola pembebanan dengan mempertimbangkan Plant Capacity Factor (PCF) dan Plant Use Factor (PUF). Data penelitian yang dikumpulkan antara lain kapasitas terpasang dan daya mampu Pembangkit Listrik Tenaga Diesel, pengoperasian pembangkit listrik, data beban listrik berdasarkan pencatatan beban harian pada PLTD Faobata dan data perencanaan yang diperoleh dari PLN Wilayah NTT. Dari hasil penelitian pada kondisi existing tahun 2015 diperoleh nilai PCF 0,391105 artinya kapasitas cadangan sekitar 61%, dan nilai PUF rata-rata adalah 0,879123. Untuk memperbaiki pengoperasian unit existing dilakukan penjadwalan ulang dan memperoleh nilai PCF yaitu 0,391105 dan nilai PUF rata-rata 0,913834 lebih baik dari pengoperasian unit existing karena lebih mendekati 1.
POTENSI PEMBANGKIT LISTRIK TENAGA MIKROHIDRO (PLTMH) PADA SALURAN IRIGASI DI SUNGAI AESESA KECAMATAN AESESA KABUPATEN NAGEKEO Wellem Fridz Galla
Jurnal Media Elektro Vol 1 No 2 (2012): Oktober 2012
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jme.v1i2.6262

Abstract

One of energy new to be a real potential is water energy. River Aesesa which located in Aesesa Distrct, Nagekeo can be exploited for Power Station of Microhidro Energy. Nowdays, public only exploit river Aesesa as clean amount of water required and irrigation. This research aim to know level of electricity which can be awakened by Power Station, that is by exploiting one of irrigation channel which there have. Data collecting is done by through measurement of head and water strength. Based on measurement data is gotten by 5.73 m head and water maximum strength 1.399 m3/s yields theoretical energy power 78.56 kW and generator power 48.43 kW. In design applies pipe 24 dim will exploit water strength 0.598 m3/s and pipe 26 dim is 0.95 m3/s which yielding is theoretical energy power 3358 and 5335 kW and generator power 20.7 and 3288 kW.
ANALISIS PENYAMBUNGAN PLTS OELPUAH 5 MWP KE SISTEM SALURAN UDARA TEGANGAN MENENGAH (SUTM) 20 KV PT. PLN UNIT LAYANAN KUPANG Frans Likadja; Wellem F. Galla; Dian Cornalia Kase
Jurnal Media Elektro Vol 11 No 1 (2022): April 2022
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jme.v0i0.6592

Abstract

This study aims to examine the impact of connecting PLTS Oelpuah with a capacity of 5 MW to SUTM 20 kV, in terms of the power flow and the magnitude of the change in voltage, generation composition, and electric power factor, when PLTS works in sunny, cloudy, and rainy weather conditions, and how the conditions system with and without the operation of PLTD LMVPP. From the results of the analysis obtained, the voltage profile at the point of connection of the Oelpuah PLTS to the Oesao feeder and the Undana Substation varies depending on weather conditions. When the weather is sunny, the voltage at the Undana substation and the Oesao feeder is stabel, but when the weather is cloudy and rainy, the distribution voltage at the Oesao feeder and the Undana feeder decreases. The composition of the generator's power supply has also changed due to weather conditions. When it is sunny PLTS supplies 3.2 MW, PLTD LMVPP supplies 12.6 MW, when it is cloudy PLTS supplies 915 kW, PLTD LMVPP supplies 15 MW and when it rains PLTS cannot supply power to the system, and PLTD LMVPP must increase its electrical power supply to 16 MW. When the PLTD LMVPP is separated from the system, any reduction in the power composition of the PLTS due to changing weather is transferred to the PLTU IPP. The electric power factor at the PLTS connection point, namely the Oesao feeder, is also influenced by changing weather conditions.
RANCANG BANGUN SISTEM PROTEKSI DAN MONITORING ARUS DAN TEGANGAN LEBIH BERBASIS TELEGRAM Nursalim Nursalim; Wellem F. Galla; Sudirman Syam; Sri Kurniati A
Jurnal Media Elektro Vol 11 No 2 (2022): Oktober 2022
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jme.v0i0.8241

Abstract

The electrical protection system is designed with the aim of preventing or reducing damage due to interference on equipment that is traversed by short circuit currents, in addition, with a protection system, the undisturbed area can be minimized as small as possible. In a house, a Miniature Circuit Breaker (MCB) is usually used as a means of protection to break the short circuit current that occurs. However, an MCB has limitations including it cannot be controlled from a certain distance, so if the MCB is to reconnect after it has worked, the user must raise the lever manually. The purpose of this research is to make an electrical protection device for household use that can be controlled and monitored remotely. This system is built using the esp module. 8266, pzem-004t sensor and solid state relay by utilizing the telegram application as control and notification. The test results show that the values ​​of current and voltage as well as electrical power can be displayed by smartphone users via the telegram application by using certain commands according to what has been programmed.
PERANCANGAN SISTEM PENGISI TOKEN LISTRIK BERUMPAN BALIK PADA kWh METER PRABAYAR BERBASIS ARDUINO Nursalim, Nursalim; Galla, Wellem F.; Syam, Sudirman; Kurniati, Sri; Rondak, Valentino A.E
Jurnal Media Elektro Vol 12 No 2 (2023): Oktober 2023
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jme.v12i2.12694

Abstract

Kilo Watt Hour Meter or kWh meter is a tool for calculating the amount of electrical energy used by electricity consumers, both residential and industrial customers. The electrical energy used is then converted into the electricity price that must be paid each month. Currently, most kWh meters in circulation are smart kWh, which use electricity tokens as transaction calculations. Customers must fill in 20 token numbers via the kWh meter keypad to fill in electricity tokens. Filling in this 20-digit token is not easy, this is because usually, this type of kWh is placed in a higher place to avoid the reach of children. This placement sometimes causes problems with replenishing the token, and users must start over from the beginning. This research aims to create a tool to fill in electricity token numbers that can be controlled using an Android application, making it easier for users to fill in electricity tokens remotely via smartphone. Apart from that, this system has feedback in the form of notifications that display numbers that failed to be filled in on the kWh meter. Test results show that this system can function well from 10 meters without obstructions and 9 meters without obstructions.
A NEW METHOD OF TORQUE RIPPLE MEASUREMENT FOR MAGNETIC GEARS Syam, Sudirman; Kurniati, Sri; Nursalim, Nursalim; Galla, Wellem F.
Jurnal Media Elektro Vol 13 No 1 (2024): April 2024
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jme.v13i1.15120

Abstract

Torque ripple analysis and calculation methods in an axial-type Magnetic Gear (MG) design with four rectangular NdFeB magnetic layers have been reviewed and discussed. Smooth and steadily transmitted torque is an essential characteristic of a magnetic gear. Reducing possible mechanical vibration, position inaccuracy, and acoustic noise is necessary. Therefore, this study aims to design a new engineering method appropriate for calculating the torque ripple of the MG transmission by testing its mechanical and electrical properties. Two simultaneous torque tests compare the MG brakes from zero to full load. In addition, the transmission torque of the axial MG is measured and calculated using technical methods. The results showed that differences in dynamic torque occurred in the MG at various air gap distances.
ANALISIS OPERASIONAL PEMBANGKIT LISTRIK TENAGA SURYA ATAP PADA GEREJA MASEHI INJILI DI TIMOR KAISAREA KOLHUA KUPANG Nahas, Reflianus H.; Likadja, Frans J.; Galla, Wellem F.
Jurnal Media Elektro Vol 14 No 1 (2025): April 2025
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

On-Grid Rooftop Solar Power Plant (PLTS) is interconnected with the PLN network and has a capacity of 25 kWp at GMIT Kaisarea BTN-Kolhua Kupang, which is expected to reduce significant operational costs. Therefore, this study aims to determine the performance ratio and the amount of energy potential contained in the Rooftop Solar Power Plant (PLTS) at GMIT Kaisarea BTN-Kolhua Kupang in order to optimize the use of renewable energy and reduce electricity operational costs. The research method used is a descriptive method and direct measurement on the inverter, MDP, and LVMDP to measure current and voltage to obtain the output power of the PLTS, PLN, and load. The results of the study indicate that the Rooftop Solar Power Plant (PLTS) system at GMIT Kaisarea BTN-Kolhua Kupang performed well, as evidenced by the efficiency of the Rooftop Solar Power Plant (PLTS), which obtained a maximum value of 85.60% on Monday of 85.60%. The measurement results show that there are savings in power and bills at GMIT Kaisarea BTN-Kolhua Kupang, with savings for 7 consecutive days of (Saturday 19.58 kWh, Sunday 76.84 kWh, Monday 9.45 kWh, Tuesday 24.05 kWh, Wednesday 22.46 kWh, Thursday 23.30 kWh, Friday 32.92 kWh).
ANALISIS EFEKTIVITAS SISTEM PROTEKSI BERBASIS TELEGRAM DALAM MENGATASI GANGGUAN TEGANGAN DAN ARUS LEBIH UNTUK MELINDUNGI PERALATAN LISTRIK TEGANGAN RENDAH Nursalim, Nursalim Nusa; Galla, Wellem F.; Syam, Sudirman
Jurnal Media Elektro Vol 14 No 1 (2025): April 2025
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In the digitalization era, protecting electrical equipment in low voltage systems of 380/220 V is crucial to ensure operational reliability and safety. This study explores the effectiveness of a protection and monitoring system based on the Internet of Things (IoT), integrated with the Telegram application, for detecting disturbances such as overvoltage and overcurrent. The methodology employed is a quantitative experimental design, involving system testing with smart sensors and relays. The test results demonstrate that the system successfully provides real-time notifications to users within an average time of 2 seconds after a disturbance is detected. With this system, users can promptly be informed about voltage and current conditions that may potentially damage equipment, thereby allowing for swift actions to prevent damage. In addition to enhancing responsiveness, this system also facilitates remote management of electrical systems. The findings of this research emphasize the importance of implementing modern technology in electrical system protection, which can reduce the risk of damage and improve energy management efficiency.
Perancangan dan Implementasi Smart kWh Meter Berbasis ESP32 untuk Manajemen Energi pada Pelanggan Rumah Tangga 1300 VA Nursalim, Nursalim; Galla, wellem F; Tena, Silverster; Meok, Nixson J.
Jurnal Media Elektro Vol 14 No 2 (2025): Oktober 2025
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jme.v0i0.26954

Abstract

This study aims to design and implement a smart kWh meter system based on ESP32 that is capable of monitoring and controlling electricity consumption in households with a connected power of 1300 VA. The developed system utilizes the ESP32 microcontroller as the main data processor, which is integrated with the PZEM-004T sensor to measure electrical parameters, including voltage, current, power, energy, and power factor. Measurement data is displayed in real-time through the Blynk application, while control and limitation of energy consumption are managed using a Telegram bot service. The system is equipped with a relay to automatically disconnect the load when energy consumption exceeds a predetermined limit. System testing is conducted by comparing the sensor measurement results against the PLN kWh meter as a reference tool. The test results indicate that the developed smart kWh meter system operates effectively and possesses an average current measurement accuracy of above 99% across various types of household loads. Additionally, the load control and notification system based on Telegram functions reliably in limiting electricity consumption. Therefore, this system can serve as an effective solution to assist household users in monitoring and controlling electricity consumption more efficiently.
ANALISIS PENGARUH SOLAR TRACKER SINGLE-AXIS TERHADAP DAYA KELUARAN DAN EFISIENSI PANEL SURYA PADA SISTEM PENERANGAN JALAN UMUM Rabu, Ansgarius Yudiyanto; Nursalim, Nursalim; Galla, Wellem F.
Jurnal Media Elektro Vol 14 No 2 (2025): Oktober 2025
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jme.v0i0.27252

Abstract

Indonesia memiliki potensi energi surya yang besar sehingga pemanfaatannya pada sistem Penerangan Jalan Umum (PJU) berbasis tenaga surya sangat prospektif, namun panel surya dengan posisi statis belum mampu menyerap energi secara optimal akibat perubahan sudut datang sinar matahari sepanjang hari. Penelitian ini bertujuan untuk menganalisis pengaruh penggunaan solar tracker single-axis terhadap daya keluaran panel surya pada sistem PJU. Metode yang digunakan adalah metode eksperimental dengan membandingkan kinerja panel surya statis pada sudut 45°, 90°, dan 135° dengan panel surya dinamis yang dilengkapi sistem solar tracker single-axis berbasis Arduino Uno. Parameter yang dianalisis meliputi tegangan, arus, daya keluaran, dan persentase penyerapan energi, dengan pengujian dilakukan dari pukul 06.00 hingga 17.00 pada interval 30 menit. Hasil penelitian menunjukkan bahwa panel surya dengan sistem pelacak menghasilkan daya keluaran yang lebih tinggi dibandingkan panel statis, dengan total daya keluaran panel dinamis mencapai 64,84 W, sedangkan panel statis menghasilkan daya antara 31,25 W hingga 40,06 W. Selain itu, tingkat penyerapan energi panel surya dinamis mencapai 87,51%, lebih tinggi dibandingkan panel surya statis yang berada pada kisaran 42,18%–54,06%. Hasil ini menunjukkan bahwa penerapan solar tracker single-axis efektif dalam meningkatkan daya keluaran dan efisiensi energi panel surya pada sistem PJU.
Co-Authors , Sri Kurniati A Adrianus Lenjo Agusthinus S. Sampeallo Agusthinus S. Sampeallo Darius M. K. Jala De Lellis, Rachel Angela Dhanang H. L. Rohi Dian Cornalia Kase Evtaleny Rollan Mauboy Frans J. Likadja Frans J. Likadja Frans Likadja fransiskus H Wete Fredyrick Mbakurawang Jani F Mandala, Jani F Julian I. Daris Kurniati A., Sri Lellis, Rachel Angela De Likadja, Frans J. Likadja, Frans James Mandala, Jani F. Mau, Viko Nobertus Mbakurawang, Fredyrick Meok, Nixson J. Nahas, Reflianus H. Nikolaus M. Tana Nursalim Nursalim Nursalim Nursalim Nursalim Nursalim Nursalim, Nursalim Nusa Rabu, Ansgarius Yudiyanto Romulus Mamung Sare Rondak, Valentino A.E Sampeallo, Agusthinus S Sampeallo, Agusthinus S. Silvester Tena Sri Kurniati, Sri Sudirman S. Sudirman Syam Sudirman Syam Syam, Sudirman Tena, Silverster Tomi D. Dairo Bobo Verdy A. Koehuan