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INDONESIA
JURNAL KAJIAN TEKNIK ELEKTRO
Published by Universitas 17 Agustus 1945 Jakarta
ISSN : 24069655     EISSN : 25026484     DOI : -
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering
JKTE adalah jurnal Open Akses dengan pelibatan mitra bestari. JKTE terbit setiap bulan Maret dan bulan September.
Arjuna Subject : -
Articles 157 Documents
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Rancang Bangun Sistem Informasi Pemesanan Makanan Dan Minuman Berbasis Web S’cafe Frengki Pernando
Jurnal Kajian Teknik Elektro Vol 10, No 2 (2025): JKTE VOL 10 NO 2 (SEPTEMBER 2025)
Publisher : Universitas 17 Agustus 1945 Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52447/jkte.v10i2.9308

Abstract

S’Café is a business establishment that serves food and beverage orders for customers. Ordering is an activity carried out by customers prior to the purchasing process. To achieve customer satisfaction, a company must have an ordering system that is efficient, fast, and accurate. The research method used in this study is a data collection method that includes observation, interviews, and literature review in order to obtain relevant information that supports the research. Meanwhile, the software development method applied in this study is the waterfall method, which consists of the stages of analysis, design, implementation, testing, and system maintenance. Currently, S’Café faces difficulties in handling orders because it still uses a manual or conventional recording system. This condition causes customers to wait a long time to place their orders, while staff also experience difficulties in recording orders manually using paper, which is prone to errors and data loss. Manual order recording is considered inefficient in terms of time and data accuracy. Therefore, to improve service quality and customer satisfaction, a web-based food ordering information system is designed using PHP and MySQL.
EVALUASI KEANDALAN SISTEM DISTRIBUSI MENGGUNAKAN INDEKS SAIDI, SAIFI, DAN CAIDI PADA PT. PLN (PERSERO) UP3 SUKOHARJO TAHUN 2024 Muhammad Syahrial Mardiansyah; Sutisna Sutisna; Andri Ulus Rahayu
Jurnal Kajian Teknik Elektro Vol 11, No 1 (2026): JKTE VOL 11 NO 1 (MARET 2026)
Publisher : Universitas 17 Agustus 1945 Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52447/jkte.v11i1.9171

Abstract

Kinerja sistem distribusi listrik yang andal sangat penting untuk menjaga kelancaran dan kualitas layanan bagi pelanggan. Sistem distribusi tegangan menengah 20 kV memiliki peran krusial karena terhubung langsung dengan pengguna listrik dan rentan terhadap berbagai gangguan selama pengoperasian. Studi ini bertujuan untuk mengevaluasi tingkat keandalan sistem distribusi 20 kV di PT. PLN (Persero) UP3 Sukoharjo berdasarkan indeks keandalan, yaitu SAIDI (System Average Interruption Duration Index), yang menunjukkan rata-rata durasi pemadaman per pelanggan; SAIFI (System Average Interruption Frequency Index), yang menunjukkan rata-rata frekuensi gangguan per pelanggan; serta CAIDI (Customer Average Interruption Duration Index), yang menunjukkan rata-rata lama pemadaman per kejadian gangguan. Metode yang digunakan adalah analisis keandalan berbasis data gangguan historis selama periode Januari hingga Desember 2024. Data yang dianalisis meliputi jumlah pelanggan, frekuensi gangguan, durasi pemadaman, serta jumlah pelanggan terdampak. Hasil perhitungan menunjukkan nilai SAIDI sebesar 0,96 jam/pelanggan/tahun dan SAIFI sebesar 1,05 kali/pelanggan/tahun, yang telah memenuhi standar SPLN, IEEE, serta WCS & WCC. Namun, nilai CAIDI sebesar 12,18 jam/kali masih melebihi standar yang ditetapkan, yang mengindikasikan bahwa waktu pemulihan gangguan relatif lama. Dengan demikian, meskipun sistem distribusi telah andal dari sisi frekuensi dan durasi pemadaman, peningkatan kecepatan penanganan gangguan masih diperlukan untuk meningkatkan keandalan sistem secara keseluruhan.
PENGALIHAN BEBAN OTOMATIS UNTUK TRAFO YANG TIDAK SEIMBANG BERBASIS LOGIKA FUZZY MAMDANY Rangga Bismantara; Arief Marwanto
Jurnal Kajian Teknik Elektro Vol 11, No 1 (2026): JKTE VOL 11 NO 1 (MARET 2026)
Publisher : Universitas 17 Agustus 1945 Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52447/jkte.v11i1.8475

Abstract

Load imbalance in a three-phase distribution transformer can lead to increased neutral current and power losses, which negatively affect the efficiency and reliability of the power distribution system. This study aims to determine the level of load imbalance, the amount of power loss due to neutral current, and to evaluate the effectiveness of a two-time-point balancing method (WBP and LWBP) applied to transformer PNIAI007 at PT PLN (Persero) ULP Enarotali. In addition, a simulation using the Mamdani fuzzy logic method was conducted to validate the balancing results based on field measurement data. The results show that the two-time-point balancing method significantly reduced load imbalance from 29% to 2.47% during the day and 1.21% at night. Neutral current decreased from 37.81 A to 14.58 A (daytime) and from 51.76 A to 19.83 A (night). Power losses were reduced by more than 85%. The Mamdani fuzzy simulation supported the accuracy of field data and can serve as a foundation for automatic load evaluation.
PENERAPAN LAGRANGE MULTIPLIER UNTUK MENGOPTIMALKAN RUGI DAYA PADA RANGKAIAN LISTRIK Ilham Afn
Jurnal Kajian Teknik Elektro Vol 11, No 1 (2026): JKTE VOL 11 NO 1 (MARET 2026)
Publisher : Universitas 17 Agustus 1945 Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52447/jkte.v11i1.9016

Abstract

Penelitian ini membahas penerapan metode Lagrange Multiplier untuk meminimalkan kerugian daya resistif dalam sirkuit listrik, khususnya pada sistem non-planar yang kompleks. Kerugian daya resistif merupakan salah satu penyebab utama penurunan efisiensi transmisi energi listrik. Upaya tradisional seperti meningkatkan luas penampang konduktor dianggap tidak efisien dari segi biaya dan ruang, sehingga diperlukan pendekatan matematis untuk menemukan kondisi optimal antara tegangan dan arus. Melalui penerapan Hukum Ohm dan analisis nodal, dibentuk sistem persamaan yang mewakili hubungan antara tegangan, arus, dan resistansi. Sistem tersebut kemudian diformulasikan menjadi fungsi Lagrange sebagai fungsi tujuan dan fungsi kendala. Proses optimasi dilakukan menggunakan bahasa pemrograman Python dengan Sympy/Numpy untuk perhitungan simbolik dan numerik. Hasil optimasi menunjukkan bahwa metode Lagrange Multiplier mampu menentukan nilai tegangan dan arus yang meminimalkan kerugian daya total sebesar 663.257575757577 Watt.
RANCANGAN BANGUN SMART TRASH BIN PEMILAH SAMPAH ORGANIK DAN AN-ORGANIK BERBASIS ARDUINO Putri Novita Sari
Jurnal Kajian Teknik Elektro Vol 11, No 1 (2026): JKTE VOL 11 NO 1 (MARET 2026)
Publisher : Universitas 17 Agustus 1945 Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52447/jkte.v11i1.9335

Abstract

Selaras dengan perkembangan zaman pengelolaan sampah masih menjadi permasalahan lingkungan yang perlu ditingkatkan dan diperhatikan dengan serius sedari awal. Keterbatasan sistem pengelolaan sampah dan kurangnya kesadaran masyarakat akan pentingnya pemilahan sampah, dapat memperlambat proses pengolahan sampah. Penelitian ini bertujuan memudahkan proses pengolahan sampah sedari awal, dan memberi pemahaman baru tentang pentingnya peran teknologi ke masyarakat luas. Metode penelitian yang digunakan pada penelitian ini adalah metode Research and Development (R&D) dengan model prototyping. Proses awal dilakukan dengan membuat perancangan, kemudian merakit perangkat keras, dan implementasi akhir serta pengujian. Hasil dari implementasi menunjukkan bahwa sistem dapat berjalan normal dan sesuai dengan yang diharapkan dan direncanakan. Berdasarkan hasil uji kelayakan yang melibatkan 1 ahli dan 24 pengguna umum, diperoleh hasil bahwa rata – rata respon menyatakan bahwa proyek ini cukup layak. Dengan demikian, smart trash bin ini bisa dinilai cukup efektif untuk membantu pemilahan antara sampah organik dan sampah an-organik. Serta dapat membantu meringankan beban pekerjaan manusia, bisa meminimalisir kesalahan pengolahan sampah, serta menghemat waktu pemilahan sampah.
Short Circuit Fault Distance Analysis Based on Fault Current Value and Fault Type Classification for Ciamis Substation Protection System Evaluation Aldin Maulana Sidiq; Sutisna Sutisna; Imam Taufiqurrahman
Jurnal Kajian Teknik Elektro Vol 11, No 1 (2026): JKTE VOL 11 NO 1 (MARET 2026)
Publisher : Universitas 17 Agustus 1945 Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52447/jkte.v11i1.9375

Abstract

Complex electrical power systems demand high reliability to minimize damage caused by short-circuit faults, which frequently occur on feeders. The impedance of the feeder significantly affects the fault current, a greater distance from the source increases the impedance, thereby limiting the magnitude of the fault current. This study aims to determine the fault location based on current values and fault classifications to optimize the protection system in the LSCM feeder at the Ciamis Substation. The methodology involves manual calculations of sequence impedance and simulations using ETAP 19.0.1 software across distance scenarios of 0%, 11,6%, 25%, 50%, 75%, and 100%. The analyzed fault types include three-phase, phase-to-phase, phase-to-phase-to-ground, and phase-to-ground faults. The analysis results show a decrease in fault current values as the distancce increases, for three-phase faults, the current decreases from 7451,31 A (0%0 to 1481,9 A (100%), while phase-to-ground faults decrease from 7451,33 A (0%) to 1303,2 A (100%). Optimization was achieved by resetting the OCR current setting are 2078,4 A (incoming), 432,96 A (outgoing), and 277,08 A (recloser), while the GFR settings are 86,6 A (incoming), 18,04 A (outgoing), and 11,54 A (recloser). Coordination simulations demonstrate that the protection system operates selectively and responsively, with the PBCL recloser acting as the fastest primary protection.
PENGEMBANGAN SISTEM DETEKSI PENCURIAN RUMAH BERBASIS IOT DENGAN APLIKASI SENSOR DAN KOMPONEN PLASTIK KONDUKTIF BERKELANJUTAN Latifah Listyalina
Jurnal Kajian Teknik Elektro Vol 11, No 1 (2026): JKTE VOL 11 NO 1 (MARET 2026)
Publisher : Universitas 17 Agustus 1945 Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52447/jkte.v11i1.9379

Abstract

Home security has become an increasingly important issue as burglary incidents continue to rise, particularly when residents are away. Conventional security systems often face limitations in early detection, high implementation costs, and a lack of flexibility in integrating modern technologies. This study aims to develop an Internet of Things (IoT)-based home theft detection system that incorporates sustainable conductive plastic sensors and components as an innovative approach in smart security device development.The proposed system utilizes conductive polymer-based vibration sensors to detect physical disturbances such as forced entry attempts on doors or windows. An ESP32-CAM microcontroller serves as the main processing unit and surveillance camera, while a solenoid door lock and buzzer function as active security actuators. All components are integrated through a Wi-Fi network and connected to a Telegram application, which provides real-time notifications and remote control capabilities. When the sensor detects suspicious vibrations, the system automatically activates the camera to capture surrounding images and sends them, along with an alert message, to the user. Testing results indicate that the system operates reliably in detecting and responding to security threats, offering fast response time, low power consumption, and material efficiency. The use of sustainable conductive plastic not only enhances sensor flexibility and durability but also supports environmentally friendly principles in IoT device development. With its affordability and ease of operation, this system presents an innovative solution for improving home security through smart and sustainable technology.

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