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All Journal TEKNIK Kitektro kawanad jes PESARE: Science and Engineering Service Journal
Lubis, Rakhmad Syafutra
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Environmental Science Public Health

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PERHITUNGAN KORONA, AUDIBLE NOISE DAN RADIO INTERFERENCE AKIBAT CUACA BURUK PADA SALURAN TRANSMISI 275 KV MEDAN-BANDA ACEH Andri, Andri; Lubis, Rakhmad Syafutra; Sara, Ira Devi
Jurnal Komputer, Informasi Teknologi, dan Elektro Vol 2, No 4 (2017)
Publisher : Universitas Syiah Kuala

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

Abstract

Saat proses transmisi energi listrik berlangsung maka akan terjadi losses atau rugi-rugi daya sehingga mengalami drop tegangan. Penggunaan saluran transmisi tegangan ekstra tinggi (SUTET) merupakan salah satu solusi untuk mengatasi masalah tersebut. Namun hal tersebut mengakibatkan timbulnya peristiwa korona. Korona dapat menimbulkan rugi-rugi korona serta gangguan terhadap lingkungan sekitar seperti timbulnya audible noise (suara bising) serta radio interference (interferensi gelombang radio). Untuk itu dalam perencanaan pembangunan jaringan SUTET diperlukan analisa tingkat rugi-rugi korona, audible noise dan radio interference yang akan terjadi pada saat level tegangan dinaikkan dari 150 kV menjadi 275 kV. Besar rugi-rugi korona saat cuaca baik terbesar terjadi pada saluran Nagan Raya-Sigli sebesar 29,8669 kW sedangkan yang terkecil terjadi pada saluran Lhokseumawe-Arun sebesar 3,004 kW. Untuk besar rugi-rugi korona saat cuaca buruk terbesar terjadi pada saluran Nagan Raya-Sigli sebesar 82,9637 kW sedangkan yang terkecil terjadi pada saluran Lhokseumawe-Arun sebesar 8,3443 kW. Besar audible noise yang dihasilkan 45,35 dB dimana termasuk dalam skala tingkat rendah menurut Kriteria Perry. Sedangkan radio interference yang dihasilkan 52,77 dB, namun hasil tersebut hanya berpengaruh pada gelombang AM.
Program Pelatihan Pemasangan Instalasi Listrik Gedung dan Daya bagi Pemuda Kopelma Darussalam Lubis, Rakhmad Syafutra; Siregar, Ramdhan Halid; Walidainy, Hubbul; Syukri, Mahdi; Jalil, Saifuddin Muhammad
Kawanad : Jurnal Pengabdian kepada Masyarakat Vol. 3 No. 2 (2024): October
Publisher : Yayasan Kawanad

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56347/kjpkm.v3i2.225

Abstract

The Training Program on Building Electrical and Power Installation for Kopelma Darussalam Youth is designed to enhance the technical skills of the younger generation in the electrical field. This program aims to equip participants with both theoretical knowledge and practical experience related to the installation of electrical systems in buildings, including lighting systems and power distribution networks. The training covers topics such as the introduction to electrical components, installation planning, installation techniques, safety standards, and troubleshooting electrical systems.The primary target of this program is local youth with potential to develop technical competence in the electrical sector, enabling them to compete in the workforce or establish independent businesses. By employing a project-based approach, participants are expected to apply their skills professionally and in compliance with industry standards. Furthermore, this program contributes to empowering youth as valuable community assets to support sustainable local development.
Pelatihan Pengenalan Energi Baru Terbarukan dan Alat-Alat Kelistrikannya Bagi Pemuda di Sekitaran Kampus USK Lubis, Rakhmad Syafutra; Siregar, Ramdhan Halid; Mahdi, Mahdi
PESARE: Jurnal Pengabdian Sains dan Rekayasa Vol 3, No 1 (2025): Februari 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/pesare.v3i1.41927

Abstract

Penggunaan energi listrik semakin meningkat. Genset dapat digunakan apabila pasokan listrik terganggu. Akan tetapi, genset ini membutuhkan bahan bakar minyak yang banyak jika dijalankan dalam jangka waktu yang lama. Penggunaan bahan bakar minyak atau bahan bakar lainnya seperti batu bara tidak dapat dilakukan tanpa adanya perkiraan penghematan, karena sumbernya terbatas dan semakin menipis. Untuk mengantisipasi menipisnya sumber daya bahan bakar alam, maka dilakukan penghematan dan pencarian bahan bakar alternatif yang sumbernya dapat diperbarui seperti tenaga surya, angin, air, dan gelombang laut serta biofuel. Sumber-sumber energi terbarukan tersebut dapat dikelola untuk menghasilkan energi listrik dengan merancang teknologi tepat guna sebagai pembangkit listrik seperti pembangkit listrik tenaga angin, pembangkit listrik tenaga surya, dan pembangkit listrik tenaga air. Edukasi dilakukan kepada masyarakat sekitar kampus USK tentang penghematan penggunaan energi listrik serta pemanfaatan dan pengenalan beberapa sumber energi terbarukan dan pengenalan beberapa pembangkit listrik yang menggunakan energi terbarukan. Masyarakat diberikan edukasi tentang jenis, fungsi, cara kerja dan perawatan pembangkit listrik energi terbarukan. Dalam pelatihan tersebut masyarakat diberikan penjelasan secara teoritis, kemudian diperlihatkan pembangkit listrik energi terbarukan di lokasi pelatihan, lalu dipandu dengan menunjukkan cara mengoperasikan pembangkit listrik tersebut.
Perancangan Uninterruptible Power Supply (UPS) untuk Peningkatan Fleksibilitas Penggunaan dan Lebih Ekonomis dengan Inverter Kendali Pulse Width Modulation (PWM) Berbasis Mikrokontroler ATmega 328 Lubis, Rakhmad Syafutra; Haris, Abdul; Tarmizi, Tarmizi
TEKNIK Vol. 43, No. 1 (2022): May 2022
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v43i1.32736

Abstract

As the high electrical load increases, power outages can occur suddenly while using electronics and often will cause damage to both software and hardware from the electronic load. To solve this problem, can use an UPS. but UPS also still has weaknesses that become the basis for consideration of its use not yet widespread, such as the price is still expensive and the backup time is short, Therefore, the design of a single-phase ac power supply with a PWM Inverter controller based on the Atmega 328 Microcontroller was carried out to increase the flexibility of the UPS using a current flow pattern according to a bidirectional ac power supply and simplified in this study to make it more economical with fewer diodes and MOSFETs. Total harmonic distortion (THD) voltage is 5.24%, output frequency is 49.56 Hz, output voltage and voltage drop meet the standard with the UPS device consisting of a transformer, adapter and inverter with adjustable switching frequency and filters.
Small-Scale Wind Power Generator with Inverse Taper and Taper Type Blades at Low Wind Speed Lubis, Rakhmad Syafutra; Muhayatsyah, Teuku; Syukri, Mahdi; Siregar, Ramdhan Halid; Jalil, Saifuddin Muhammad
Journal of Engineering and Science Vol. 4 No. 1 (2025): June
Publisher : Yayasan Kawanad

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56347/jes.v4i1.275

Abstract

The utilization of wind energy as one of the renewable energy sources in Indonesia is still limited. This is due to Indonesia's large wind potential, but it is at low speeds. One modification of wind turbines to overcome this problem is by using inverse taper and taper blades. Inverse taper blades have a chord distribution that increases from root to tip while taper blades have a chord distribution that decreases from root to tip. This research conducts the design and construction of inverse taper and taper blades on small-scale wind turbines using NACA 6412 airfoil type, then tested in the field and obtained the performance of each blade. The design was carried out using blade element momentum theory to obtain the blade geometry shape and perform performance analysis of each type of blade. Based on the simulation results obtained from QBlade, it shows that the inverse taper blade performance has a maximum Cp of 0.52 while the taper blade has a maximum Cp of 0.41. The power graph from field testing results shows that inverse taper blades provide good power generation at low wind speeds compared to taper blades. The inverse taper blade has a cut-in speed of 1.2 m/s and the best power production occurs at speeds of 1-4 m/s.
Co-Authors Abdul Haris Andri Andri Hubbul Walidainy Ira Devi Sara Mahdi Mahdi, Mahdi Mahdi Syukri Muhayatsyah, Teuku Saifuddin Muhammad Jalil Siregar, Ramdhan Halid Tarmizi Tarmizi