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All Journal Elektron Jurnal Ilmiah JTEIN: Jurnal Teknik Elektro Indonesia Andalasian International Journal of Applied Science, Engineering, and Technology Jurnal Andalas: Rekayasa dan Penerapan Teknologi International Journal of Advanced Science Computing and Engineering JAPEPAM, Jurnal Pengabdian kepada Masyarakat
Akbar Abadi, Akbar
Jurusan Teknik Elektro, Fakultas Teknik, Universitas Andalas
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences Other

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Pengaruh Harmonik Akibat Pengoperasian Motor Induksi Tiga Fasa Pada Sistem Tenaga Satu Fasa Abadi, Akbar; Meka, S Yudia; Widia, Riza
Elektron : Jurnal Ilmiah Volume 15 Nomor 2 Tahun 2023
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/eji.0.0.357

Abstract

The research conducted focuses on analyzing the harmonic effects resulting from the operation of a three-phase induction motor in a single-phase power system and examining changes in harmonic values due to load variations using two capacitors. This study is a continuation of previous research, which only addressed the influence of a single capacitor on a three-phase induction motor in a single-phase power system, without further exploration of the extent of harmonic impact on the motor. The induction motor operates based on the principle of magnetic induction. This investigation employs a single-phase induction motor with lower power capacity compared to a three-phase induction motor. Three-phase induction motors have a small starting torque, preventing them from starting under full load. The study involves increasing the starting torque of the three-phase induction motor and operating it in a single-phase electrical power system using capacitors to improve power factor during the starting process while analyzing its harmonic effects. The research findings indicate that as the load on the motor increases, both the motor speed and harmonic current values decrease. This is evident when there is no load, and the motor speed is 1475 rpm; adding a load does not exceed this speed. The motor speed decreases as the load increases, while the presence of harmonic current values is due to the linear load, such as incandescent light bulbs. The study is conducted by enhancing the starting torque of the three-phase induction motor, imposing a significant load. The motor demonstrates more optimal and stable performance with the new method compared to the old method. Additionally, the harmonic current values with the new method are lower than those with the old method.
Design of Portable Air Conditioner Cooling Combination System Using Thermo Electric Cooler and Water Cooler Based on Arduino Uno Wiharti, Wiwik; Abadi, Akbar; Mayura, Yona; Indriana, Falia; Ngoc, Nguyen Thi Bich
International Journal of Advanced Science Computing and Engineering Vol. 5 No. 3 (2023)
Publisher : SOTVI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62527/ijasce.5.3.168

Abstract

A room can be categorised as comfortable or not depending on the temperature and humidity of the air in the room. In order for the room temperature to be maintained, an Air Conditioner (AC) is needed. In the AC there is refrigerant as the most important component that functions to provide cool and cold effects in the room. However, refrigerant leakage in AC is one of the causes of greenhouse emissions that have an impact on climate change. In order to reduce the emissions caused by AC usage, many researchers are utilising Peltier as a device designed to replace the AC cooling system. In order for TEC to work optimally when cooling the air in the room, it is necessary to design a combination system of Portable Air Conditioner (AC) cooling using TEC and Arduino Uno-based water cooler. The working principle of designing a portable Air Conditioner cooling combination system using TEC and water cooler requires a temperature set point value in the water cooler system, where the Arduino is given a set point temperature range on the heatsink. The temperature on the heatsink affects the pump speed. if the higher the temperature on the heatsink read by the DS18B20 temperature sensor, the pump will work quickly to cool the heatsink side. The temperature on the heatsink, pump speed, and the height of the water cooler in the tub are displayed on the LCD. Before assembling and arranging the components that will be used in the portable Air Conditioner cooling combination system using TEC and water cooler, the design flow of the working principle and tool design of the portable Air Conditioner cooling combination system is needed. After the components are assembled and arranged, the test results are obtained with the conclusion that the TEC with the water cooler method is better at cooling a room measuring 1x1 metre than the water cooler method.
Karakteristik Medan Listrik-Dekat Petir Positive Cloud to Ground Seftiani, Yudia Meka; Hazmi, Ariadi; Novizon, Novizon; Abadi, Akbar; Widia, Riza
Elektron : Jurnal Ilmiah Volume 15 Nomor 1 Tahun 2023
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/eji.15.1.334

Abstract

This study was conducted on 19 electric field data near positive lightning cloud to ground (+CG). The electric field change of +CG lightning consist of preliminary breakdown (PB) and return stroke (RS). The analysis conducted in this research are: PB/RS ratio, PB-RS separation, pre-return stroke duration, pulse train duration, and individual pulse duration. Furthermore, the relationship between +CG lightning and cloud image satellite was observed the average value of PB/RS ratio, PB-RS separation, prereturn stroke duration, pulse train duration and individual pulse duration were 13,89%, 91,53 ms, 102,23 ms, 1,20 ms,150,31 μs, respectively.
Sosialisasi Energi Hijau untuk Masa Depan : Mengenal Energi Terbarukan Sejak Dini di SMA Negeri 16 Padang Muhardika; Abadi, Akbar; Savira, Resti; Kamisa Putri , Yani; Meka Seftiani, Yudia
Jurnal Andalas: Rekayasa dan Penerapan Teknologi Vol. 5 No. 1 (2025): Juni 2025
Publisher : Electrical Engineering Department Faculty of Engineering Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jarpet.v5i1.116

Abstract

Peningkatan pemahaman generasi muda tentang energi terbarukan sangat penting untuk mendukung transisi energi bersih dan pembangunan berkelanjutan di Indonesia. Namun, tingkat literasi energi hijau di kalangan siswa SMA masih tergolong rendah. Untuk itu, Program Studi Teknik Listrik Politeknik Negeri Padang melaksanakan kegiatan pengabdian masyarakat berupa sosialisasi energi terbarukan di SMA Negeri 16 Padang. Kegiatan dilaksanakan dalam bentuk presentasi edukatif, diskusi interaktif, dan demonstrasi aplikasi energi terbarukan. Evaluasi dilakukan menggunakan kuesioner pre-test dan post-test untuk mengukur efektivitas kegiatan terhadap peningkatan pemahaman siswa. Hasil kegiatan menunjukkan adanya peningkatan pemahaman yang signifikan pada seluruh indikator yang diukur. Pemahaman siswa terhadap konsep dasar energi terbarukan meningkat dari 32% menjadi 87%, pemahaman tentang jenis-jenis energi hijau meningkat dari 25% menjadi 80%, dan pemahaman manfaat energi terbarukan bagi lingkungan meningkat dari 38% menjadi 95%. Selain itu, seluruh siswa (100%) menyatakan pentingnya penerapan energi terbarukan di masa depan. Dengan demikian, kegiatan ini terbukti efektif dalam meningkatkan literasi energi hijau di kalangan siswa SMA dan dapat menjadi model yang layak direplikasi di sekolah lain. Ke depan, diperlukan kesinambungan program serupa untuk memperkuat pendidikan lingkungan di tingkat pendidikan menengah.
The Impact of Load Variations on The 300 W Pico-hydro Power Plants Parameters (Voltage, Current, Frequency and Generator Speed) Hendri, Zulka; Seftiani, Yudia Meka; Abadi, Akbar; Wiharti, Wiwik; Herisajani, Herisajani; Yandri, Valdi Rizki; Haryadi, Yuda; Mayura, Yona
Andalasian International Journal of Applied Science, Engineering and Technology Vol. 5 No. 2 (2025): July 2025
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijaset.v5i02.249

Abstract

This research examines how load variations affect the performance of a pico-hydro power system, specifically focusing on voltage, current, frequency, and generator speed. Experiments were carried out through direct measurement under different load conditions. The findings reveal that as the load increases, the output voltage decreases due to higher circuit resistance, while the output current rises significantly. The generator frequency remains relatively stable under light loads but starts to fluctuate near full capacity, indicating the need for improved regulation. Similarly, the generator’s rotational speed declines with higher loads, signaling a performance limit. These results highlight the critical relationship between load changes and system performance, providing valuable insights to enhance the efficiency and stability of pico-hydro systems, especially for renewable energy applications in remote areas.
Effectiveness Analysis of Soft Starter in Reducing Starting Current of 400 kW Three-Phase Induction Motor for Chipper Machines in the Wood Processing Industry Savira, Resti; Abadi, Akbar; Putri, Yani Kamisa; Rahman, Aldi; Alhamda, Dinda Sukra
Jurnal Teknik Elektro Indonesia Vol 6 No 2 (2025): JTEIN: Jurnal Teknik Elektro Indonesia
Publisher : Departemen Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtein.v6i2.788

Abstract

The wood processing industry heavily relies on three-phase induction motors to drive high-power equipment such as chipper machines. One of the major challenges in operating these motors is the high inrush current during startup, which can destabilize the power system and accelerate equipment wear. This study aims to analyze the effectiveness of using a soft starter as a starting method for a 400kW induction motor in a chipper application. The research method is an experimental case study involving direct field observation and theoretical calculations of electrical parameters such as nominal current, current limiting, torque, and trip class. The observation results show that the actual starting current of 1,216.15 A remains below the calculated current limiting threshold of 1,575 A, while the trip class value of 2,835 A provides optimal protection. The use of a soft starter proves effective in reducing inrush current, maintaining voltage stability, and enhancing the reliability and efficiency of motor operation. This research supports the application of soft starters as a suitable solution for high-power motor starting in heavy industrial settings.
Pemanfaatan Pembangkit Listrik Tenaga Pico Hydro (PLTPH) Turbin Cross-Flow Pada Perkebunan Masyarakat Bukit Aur Mayura, Yona; Saputra, Fani; Abadi, Akbar; Rahman, Aldi; Seftiani, Yudia Meka
JAPEPAM, Jurnal Pengabdian kepada Masyarakat Vol. 3 No. 2 (2024): JAPEPAM
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat

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

Abstract

Kegiatan pengabdian kepada masyarakat dengan judul “Pemanfaatan Pembangkit Listrik Tenaga Pico Hydro (PLTPH) Turbin Cross-Flow pada Perkebunan Masyarakat Bukit Aur” ini bertujuan untuk mengadakan suplai listrik bagi petani durian yang berkebun di Bukit Aur. Dimana perkebunan durian ini dapat menjanjikan kontribusi signifikan terhadap ekonomi lokal. Namun, tantangan yang dihadapi berupa akses terhadap listrik yang terbatas. Dengan infrastruktur listrik yang terbatas menyebabkan sebagian besar masyarakat bergantung pada sumber energi konvensional yang mahal dan merugikan lingkungan. Sumber energi konvensional yang digunakan oleh masyaraka ialah penggunaan senter atau lampu lantera sebagai alat penerang ketika musim panen. Penggunaan sumber energi konvensional ini membutuhkan biaya yang mahal dan dapat merugikan lingkungan jika tidak bijak dalam penggunaannya. Oleh sebab itu, perlu adanya aliran listrij di Bukit Aur. Pada kegiatan pengabdian kepada masyarakat ini, pembangkit listrik yang dihasilkan oleh tenaga pico hydro ialah sebesar 300 Watt, sehingga masyarakat dapat memanfaatkan listrik yang tersedia untuk menghidupkan lampu, men-charge baterai handphone, dan menghidupkan alat elektronik yang dayanya dibawah 300 Watt atau total untuk keseluran daya pada alat elektronik yang hidup di bawah 300 Watt. Dalam kegiatan pengabdian ini, dengan daya yang dihasilkan oleh pembangkit dapat menghidupkan 3 buah lampu dengan daya 39 Watt dan sekaligus dapat men-charge baterai handphone sebanyak 5 buah.
Co-Authors Alhamda, Dinda Sukra Ariadi Hazmi Haryadi, Yuda Herisajani Herisajani Indriana, Falia Kamisa Putri , Yani Mayura, Yona Meka Seftiani, Yudia Meka, S Yudia Muhardika Ngoc, Nguyen Thi Bich Novizon, Novizon Putri, Yani Kamisa Rahman, Aldi Riza Widia Saputra, Fani Savira, Resti Seftiani, Yudia Meka Valdi Rizki Yandri Wiwik Wiharti Zulka Hendri