Elektrika
type: channel
description: Elektrika (p-ISSN 2085-0565 | e-ISSN 2580-8486 | DOI 10.26623/elektrika) menerbitkan artikel penelitian, praktik terbaik, dan kebijakan teknik elektro di tingkat nasional dan internasional (Lihat Fokus dan Ruang Lingkup ). Artikel jurnal ini diterbitkan setiap enam bulan, yaitu pada bulan April dan Oktober (2 edisi per tahun), dan diterbitkan oleh Departemen Teknik Elektro, Fakultas Teknik, Universitas Semarang. Hubungi Ruang Dosen Teknik Elektro Lantai 7 Gedung USM Tower Universitas Semarang Jalan Soekarno - Hatta Tlogosari, Semarang - Jawa Tengah Telp:(024) 6702757 Fax: (024) 6702272, Email: elektrika@usm.ac.id
publisher: Universitas Semarang
language: en
publication name: Elektrika
issn: 2085-0565
copyright: Authors who publish this journal agree to the following terms: The author owns the copyright and grants the journal the first publication rights with the work simultaneously licensed under the Creative Commons Attribution 4.0 International License which allows others to share the work with recognition of the authorship of the work and initial publication in the journal. Authors may enter into separate additional contractual agreements for non-exclusive distribution of the published journal version of the work (e.g., posting it to an institutional repository or publishing it in a book), in recognition of its initial publication in this journal. Authors are allowed and encouraged to post their work online (e.g., in institutional repositories or on their websites) before and during the submission process, as it can lead to productive exchanges, as well as earlier and larger citations of published works (See The Effects of Open Access). This work is licensed under the Creative Commons Attribution 4.0 International License.
items: EVALUASI KINERJA MOTOR LISTRIK PADA SISTEM MEKANIK BERBASIS KELISTRIKAN DI DEPO KERETA API BLITAR
items: INTEGRASI MONITORING OEE REAL-TIME BERBASIS PLC-HMI DAN ANALISIS LOG GRANULAR UNTUK OPTIMASI PRODUKSI
items: KLASIFIKASI PNEUMONIA PADA CITRA X-RAY DADA MENGGUNAKAN EKSTRAKSI CIRI CONVOLUTIONAL NEURAL NETWORK DAN ALGORITMA K-NEAREST NEIGHBOR
items: MODIFIKASI COAL FEEDER DAN COAL THROWER UNIT #1 DI PLTU HOLTEKAMP 2 X 10 MW
items: SISTEM PEMANTAUAN PERGERAKAN GAJAH BERBASIS GEOFENCE MENGGUNAKAN TEKNOLOGI LORA
items: ANALISIS UPRATING PENGHANTAR JTM UNTUK PERBAIKAN NILAI DROP VOLTAGE DAN LOSSES PADA PENYULANG KAONAK PT PLN (PERSERO) ULP WAMENA KOTA
items: ANALISIS AKURASI DIAGNOSTIC POCKET PADA PARAMETER SPO₂, BPM, DAN SUHU TUBUH
items: MANAJEMEN ALIRAN ENERGI MENGGUNAKAN ALGORITMA GENETIK PADA DC/AC MIKROGRID
items: PROTOTYPE SISTEM PARKIR BERBASIS IOT MENGGUNAKAN ESP32, SENSOR INFRARED, DAN FIREBASE DENGAN INTEGRASI KAMERA
items: INTERNET OF THINGS-BASED WATER PIPE LEAK DETECTION SYSTEM
items: IMPLEMENTASI SISTEM IOT BERBASIS LORA DAN ARIMA UNTUK OPTIMASI DISTRIBUSI AIR BERSIH
items: PENGEMBANGAN SISTEM WEB UNTUK PERENCANAAN JARINGAN BACKBONE DWDM DENGAN VISUALISASI INTERAKTIF DAN ESTIMASI KEBUTUHAN PERANGKAT
items: RANCANG BANGUN SISTEM INFORMASI JALUR FEEDER UNTUK MENDUKUNG PENANGANAN FIBER CUT PADA JARINGAN FTTH
items: PROTOTYPE SISTEM OTOMATISASI LAMPU DAN AC BERBASIS INTERNET OF THINGS
items: SIMULASI PENETRASI PLTS ATAP YAYASAN TUNAS MANUNGGAL KAPASITAS 107 KWP KE GRID PLN 20 KV
items: RANCANG BANGUN COOLSTORAGE IKAN NELAYAN SKALA KECIL DENGAN THERMOELECTRIC BERBASIS ESP DAN TEKNOLOGI INTERNET OF THINGS (IOT) MENGGUNAKAN FUZZY MAMDANI DAN TSUKAMOTO
items: ANALISIS HASIL PENGUJIAN TAN DELTA STATOR GENERATOR SETELAH OVERHAUL MENGGUNAKAN OMICRON CPC 100 DAN CP-TD1 DI PLTU SUMBER ALAM SEKURAU TANJUNG SELOR
items: ADVANCED LINE FOLLOWER ROBOT DENGAN SENSOR ULTRASONIK UNTUK DYNAMIC OBSTACLE AVOIDANCE DAN SMARTPHONE-BASED CONTROL
items: ANALISIS SUSUT NON TEKNIS BERDASARKAN LOAD PROFILE DAN JAM NYALA PADA PELANGGAN AMR (AUTOMATIC METR READING) PT PLN (PERSERO) UP3 BIMA
items: DESAIN ALAT PENGUKUR TINGGI BADAN YANG DILENGKAPI DENGAN FITUR DETEKSI STUNTING
items: PERAN INTERNET OF THINGS DALAM MENINGKATKAN KEAMANAN DAN EFISIENSI TRANSPORTASI
items: PENERAPAN SKEMA POTT ECHO DENGAN WEAK INFEED UNTUK DISTANCE RELAY DALAM MENINGKATKAN KEANDALAN AUTORECLOSE PADA GI RADIAL UJUNG DI ULTG PANGKALAN BUN
items: ANALISA PENGARUH PERUBAHAN FREKUENSI DAN TEGANGAN TERHADAP EFISIENSI MOTOR INDUKSI TIGA FASA MENGGUNAKAN MATLAB SIMULINK
items: SMART AQUASCAPES DENGAN KONTROL SUHU, PENGATUR PH, DAN PAKAN OTOMATIS
items: OPTIMASI PERTUMBUHAN MICROGREEN RED RADISH MELALUI OTOMATISASI PENYIRAMAN, PENYINARAN, DAN PENYESUAIAN SUHU BERBASIS IOT
items: A NOVEL APPROACH OF HUMAN EMOTIONAL ESTIMATION SYSTEM VIA MULTISENSORY DATASETS FUSION METHODS
items: IMPLEMENTASI MANAJEMEN LAYANAN TEKNOLOGI INFORMASI DENGAN METODE AGILE PADA KPU KOTA SURABAYA
items: ANALISIS INTEGRASI PLTB PADA STABILITAS FREKUENSI DALAM JARINGAN KELISTRIKAN SULBAGSEL BERDASARKAN RATE OF CHANGE OF FREQUENCY
items: OPTIMASI JARINGAN INTERNET MENGGUNAKAN KOMBINASI LOAD BALANCING DAN QUEUE PADA ROUTER MIKROTIK
items: DESIGN DRY CABINET MENGGUNAKAN MICROCONTROLLER ESP 32

EVALUASI KINERJA MOTOR LISTRIK PADA SISTEM MEKANIK BERBASIS KELISTRIKAN DI DEPO KERETA API BLITAR
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description: This study was motivated by the importance of electric motor performance as the primary drive in electrically powered mechanical systems in industrial settings, particularly in the air compressor system at the Blitar Railway Depot. A decline in motor performance due to operational and environmental factors can impact energy efficiency and system reliability. The objective of this study is to evaluate the performance of three-phase induction motors through the analysis of electrical and mechanical parameters to determine the motor’s efficiency level and operational condition. The methodology employed includes direct measurements of parameters such as input power, output power, current, voltage, power factor (cos φ), and rotational speed (RPM), followed by calculations of efficiency and power losses. The results of the study indicate that the motor is still operating in fairly good condition; however, there are indications of a decline in efficiency due to power losses occurring during operation. The conclusion of this study emphasizes that periodic evaluations are essential to maintain motor performance and prevent premature failure. The contribution of this research is to provide practical analysis as a basis for predictive maintenance and energy efficiency improvements in industrial systems based on electric motors. Keywords: three-phase induction motor, efficiency, input power, output power, power losses, motor performance ABSTRAK Penelitian ini dilatarbelakangi oleh pentingnya kinerja motor listrik sebagai penggerak utama pada sistem mekanik berbasis kelistrikan di lingkungan industri, khususnya pada sistem kompresor udara di Depo Kereta Api Blitar. Penurunan performa motor akibat faktor operasional dan lingkungan dapat berdampak pada efisiensi energi serta keandalan sistem. Tujuan penelitian ini adalah untuk mengevaluasi kinerja motor induksi tiga fasa melalui analisis parameter kelistrikan dan mekanik guna mengetahui tingkat efisiensi dan kondisi operasional mo…
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creator: Muhammad Kholil
creator: Royb Fatkhur Rizal
rights: Copyright (c) 2026 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2026-04-30
publication date: 2026-04-30
starting page: 61
ending page: 72
doi: 10.26623/elektrika.v18i1.14309

INTEGRASI MONITORING OEE REAL-TIME BERBASIS PLC-HMI DAN ANALISIS LOG GRANULAR UNTUK OPTIMASI PRODUKSI
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description: Overall Equipment Effectiveness (OEE) is a crucial metric in modern manufacturing; however, conventional monitoring systems often focus on aggregate reporting, lacking the capability for automated root-cause identification. This research develops an integrated real-time OEE monitoring system utilizing Schneider PLCs and Weintek HMIs via an OPC Server (KEPServerEX) with a Double-Buffer Persistency mechanism. Unlike traditional methods, this study introduces granular event-log analysis to dissect production data at millisecond resolution. The system achieved 100% data transmission reliability even during peak outputs of 58,063 units per day. Analytical results reveal a critical performance-quality trade-off: extreme cycle time acceleration to 0.552s triggered a significant surge in Type 2 Rejects (Ejector Failure), accounting for 71.86% of total quality losses. This micro-anomaly was physically validated as a violation of mechanical dwell time limits. By identifying a Safe Operating Window between 0.630s – 0.635s and implementing a proposed speed capping strategy, this research projects a significant OEE improvement through the balance of speed and process stability. This study provides a technical reference for future researchers in implementing adaptive speed control based on real-time quality feedback in automated assembly lines. Keywords: IIoT, OPC server, Double-buffer persistency, Real-time monitoring, Smart Manufactur ABSTRAK Overall Equipment Effectiveness (OEE) merupakan metrik krusial dalam manufaktur modern, namun sistem monitoring konvensional seringkali hanya berfokus pada pelaporan agregat tanpa kemampuan identifikasi akar penyebab masalah secara otomatis. Penelitian ini mengembangkan sistem monitoring OEE real-time terintegrasi menggunakan PLC Schneider dan HMI Weintek melalui OPC Server (KEPServerEX) dengan mekanisme Double-Buffer Persistency. Berbeda dengan metode tradisional, penelitian ini memperkenalkan analisis event-log granular untuk membedah da…
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creator: Rian Dwi Cahyadi
creator: Mir'atul Khusna Mufida
rights: Copyright (c) 2026 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2026-04-30
publication date: 2026-04-30
starting page: 49
ending page: 60
doi: 10.26623/elektrika.v18i1.14252

KLASIFIKASI PNEUMONIA PADA CITRA X-RAY DADA MENGGUNAKAN EKSTRAKSI CIRI CONVOLUTIONAL NEURAL NETWORK DAN ALGORITMA K-NEAREST NEIGHBOR
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description: Pneumonia is an acute lung infection that remains one of the leading causes of death worldwide, particularly in children under five years of age and the elderly. Conventional diagnosis through chest X-ray interpretation requires high radiological expertise and is susceptible to human error, especially in regions with limited medical resources. This study proposes a two-stage automatic pneumonia classification system using Convolutional Neural Network (CNN) as an automatic feature extractor and K-Nearest Neighbor (KNN) as the final classifier on chest X-ray images. The dataset used is the publicly available Chest X-Ray Images (Pneumonia) from Kaggle, consisting of 5,863 images classified into two classes: Normal (1,583 images) and Pneumonia (4,280 images). The preprocessing pipeline includes grayscale conversion, Contrast Limited Adaptive Histogram Equalization (CLAHE), resizing to 224×224 pixels, and normalization to (0,1). A CNN architecture with three convolutional blocks (32–64–128 filters) with Batch Normalization extracts a 128-dimensional feature vector per image. The optimal K value for KNN is determined through validation experiments yielding K=5 with weighted Euclidean distance. The proposed system achieves an accuracy of 92.80%, precision of 94.12%, recall of 95.34%, F1-Score of 94.73%, specificity of 91.98%, and AUC-ROC of 0.971 on the test set, outperforming conventional methods including SVM+HOG (78.30%) and CNN end-to-end (90.45%). Keywords: chest X-ray, convolutional neural network, K-nearest neighbor, medical image classification, pneumonia detection. ABSTRAK Pneumonia merupakan infeksi akut pada paru-paru yang masih menjadi salah satu penyebab kematian tertinggi di dunia, terutama pada anak-anak di bawah usia lima tahun dan lansia. Diagnosis konvensional melalui interpretasi citra X-Ray dada memerlukan keahlian radiologis yang tinggi dan rentan terhadap kesalahan manusia, khususnya di daerah dengan keterbatasan sumber daya medis. Penelitian ini meng…
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creator: Yusraka Dimas Al Iman
creator: Septine Eka Putri
creator: Agus Supriyanto
rights: Copyright (c) 2026 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2026-04-28
publication date: 2026-04-28
starting page: 31
ending page: 39
doi: 10.26623/elektrika.v18i1.14211

MODIFIKASI COAL FEEDER DAN COAL THROWER UNIT #1 DI PLTU HOLTEKAMP 2 X 10 MW
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description: The combustion system in a coal-fired boiler is greatly influenced by the performance of the coal supply and distribution equipment, especially the coal feeder and coal thrower. Problems that often occur include uneven (unstable) coal distribution, increased fuel consumption and low combustion efficiency. This study aims to modify the coal feeder and coal thrower system to equalize fuel distribution, fuel efficiency and improve the stability of coal supply in the boiler combustion chamber at the Holtekamp 2 x 10 MW PLTU. The method here uses qualitative and quantitative methods to obtain appropriate data before and after the modification of the coal feeder - coal thrower overhaul unit #1. Modifications are made by adding coal feeders to each coal thrower so that each line can be controlled to optimize the distribution and evenness of coal and can be calculated to obtain SFC and auxiliary power values. The implementation results show an increase in coal flow stability, more even combustion, reduced coal combustion residue and increased boiler thermal efficiency. The lowest SFC value occurred in September at 1,440 kg/kWh, with an average load of 7.45 MW. Meanwhile, the auxiliary power value reached 8,807 kW (Coal Feeder) and 7,741 kW (Coal Thrower) in November, reaching 7,574 MW during the performance test. Keywords: Coal Feeder, Coal Thrower, Distribution, Efficiency, Modification ABSTRAK Sistem pembakaran pada boiler berbahan bakar batu bara sangat dipengaruhi oleh kinerja peralatan penyuplai dan penyebar batu bara, khususnya coal feeder dan coal thrower. Permasalahan yang sering terjadi meliputi distribusi batu bara yang tidak merata (tidak stabil), peningkatan konsumsi bahan bakar dan efisiensi pembakaran yang rendah. Hal ini bertujuan untuk melakukan modifikasi pada sistem coal feeder dan coal thrower untuk pemerataan distribusi bahan bakar, efisiensi pemakaian bahan bakar dan meningkatkan kestabilan suplai batu bara di dalam ruang bakar boiler di PLTU Holtekamp …
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creator: Ahmad Solichin
creator: Gunawan Gunawan
rights: Copyright (c) 2026 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2026-04-22
publication date: 2026-04-22
starting page: 9
ending page: 14
doi: 10.26623/elektrika.v18i1.14137

SISTEM PEMANTAUAN PERGERAKAN GAJAH BERBASIS GEOFENCE MENGGUNAKAN TEKNOLOGI LORA
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description: This research aims to develop an elephant movement monitoring system capable of transmitting data from a gateway to a server using the MQTT protocol and displaying information in real time via a web-based dashboard. This system is designed to support remote monitoring with low latency and a wide communication range. Test results show that the average data transmission time from the gateway to the server via the MQTT protocol is 1.44 ms, while the average notification delivery time to the user is 0.89 seconds. The system is capable of operating up to 1 km with an RSSI value of -105 dB, indicating stable communication at that distance. In addition, the developed dashboard was successfully deployed online, allowing users to monitor sensor data and device status in real time through an interactive and easy-to-use interface. The results of this study indicate that the developed system has efficient communication performance, low latency, and ease of monitoring, making it potentially applicable to various IoT applications based on remote monitoring. Keywords: LoRa, Geofence, GPS, MQTT ABSTRAK Penelitian ini bertujuan untuk mengembangkan sistem pemantauan pergerakan gajah yang mampu mengirimkan data dari gateway ke server menggunakan protokol MQTT, serta menampilkan informasi secara real-time melalui dashboard berbasis web. Sistem ini dirancang untuk mendukung proses pemantauan jarak jauh dengan latensi rendah dan jangkauan komunikasi yang luas. Hasil pengujian menunjukkan bahwa rata-rata waktu pengiriman data dari gateway ke server melalui protokol MQTT adalah 1.44 ms, sedangkan rata-rata waktu pengiriman notifikasi ke pengguna adalah 0.89 detik. Sistem mampu beroperasi hingga 1 km dengan nilai RSSI sebesar -105 dB, yang menandakan komunikasi masih stabil pada jarak tersebut. Selain itu, dashboard yang dikembangkan berhasil dideploy secara online, memungkinkan pengguna untuk memantau data sensor dan status perangkat secara real-time melalui antarmuka yang interaktif dan m…
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creator: Furqon Andika
creator: Hamid Azwar
creator: Wira Indani
creator: Muhammad Diono
rights: Copyright (c) 2026 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2026-04-30
publication date: 2026-04-30
starting page: 40
ending page: 48
doi: 10.26623/elektrika.v18i1.14011

ANALISIS UPRATING PENGHANTAR JTM UNTUK PERBAIKAN NILAI DROP VOLTAGE DAN LOSSES PADA PENYULANG KAONAK PT PLN (PERSERO) ULP WAMENA KOTA
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description: This study aims to evaluate the impact of uprating the Kaonak feeder conductor on energy distribution efficiency and voltage quality. The methods used include literature review, documentation, and interviews to collect relevant data. The literature review covers theories of electric power distribution systems, documentation includes electrical data from PT PLN (Persero) UP3 Wamena, and interviews are conducted with related parties to obtain in-depth information regarding the planned configuration of the Kaonak feeder. Data from the calculation of energy distribution efficiency percentage and voltage drop percentage obtained from ETAP simulations are analyzed quantitatively and compared with the medium-voltage network criteria based on SPLN No. 72 of 1987.The results show that the energy distribution efficiency under existing conditions is 97.34% and the voltage quality is 97.75%, while after reconfiguration these values increase to 97.81% and 96.30%, respectively. This study implies that reconfiguration can improve energy distribution efficiency and voltage quality. Further research is needed to monitor the long-term implementation of the reconfiguration. Keywords: Efficiency, Energy, Voltage, ETAP ABSTRAK Penelitian ini bertujuan untuk menilai dampak Uprating Penghantar Penyulang Kaonak terhadap efisiensi penyaluran energi dan kualitas tegangan. Metode yang digunakan meliputi studi pustaka, dokumentasi, dan wawancara untuk mengumpulkan data yang relevan. Studi pustaka mencakup teori sistem distribusi tenaga listrik, dokumentasi mencakup data kelistrikan dari PT. PLN (Persero) UP3 Wamena, dan wawancara dilakukan dengan pihak-pihak terkait untuk mendapatkan informasi mendalam mengenai rencana konfigurasi Penyulang Kaonak. Data hasil perhitungan persentase efisiensi penyaluran energi dan persentase jatuh tegangan dari simulasi ETAP dianalisis secara kuantitatif dan dibandingkan dengan kriteria jaringan tegangan menengah SPLN No. 72 Tahun 1987. Hasil penelitian menunju…
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creator: M. Aslam Karomi
creator: Agus Adhi Nugroho
rights: Copyright (c) 2026 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2026-04-22
publication date: 2026-04-22
starting page: 15
ending page: 20
doi: 10.26623/elektrika.v18i1.13938

ANALISIS AKURASI DIAGNOSTIC POCKET PADA PARAMETER SPO₂, BPM, DAN SUHU TUBUH
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description: The development of accurate and affordable IoT-based diagnostic tools is crucial for advancing healthcare services. This study aims to evaluate the performance of a Diagnostic Pocket device (n=54) in measuring body temperature, oxygen saturation (SpO₂), and heart rate (BPM) by comparing it against standard equipment (thermogun and pulse oximeter). Statistical analysis was performed using paired t-test or Wilcoxon signed-rank test for difference significance, Bland-Altman analysis for agreement level, and Pearson/Spearman correlation for the strength of the relationship. The results indicate that the Diagnostic Pocket performs well in measuring SpO₂ (Bias = +1.6%, LOA = -3.9% to +5.9%, ρ > 0.8, p > 0.05) and BPM (Bias = +5.8 BPM, LOA = -5.8 BPM to +17.4 BPM, ρ ≈ 0.6-0.7, p > 0.05), demonstrating adequate agreement and correlation with the standard device. However, for temperature measurement, the device showed a statistically significant difference (Bias = 0.1°C, LOA = -1.1°C to +0.9°C, ρ ≈ 0.4-0.6, p < 0.05) and low agreement. The disparity in temperature readings is suspected to be due to differences in sensor sensitivity, calibration, or measurement location. Variations in BPM may be influenced by the subject's physiological condition or movement. In conclusion, the Diagnostic Pocket shows promise for SpO₂ and BPM monitoring but requires further refinement of its temperature sensor component. Keywords: Diagnostic Pocket, IoT, SpO2, BPM, Pulse Oximeter ABSTRAK Pengembangan alat diagnostik berbasis IoT yang akurat dan terjangkau sangat penting untuk memajukan layanan kesehatan. Penelitian ini bertujuan untuk mengevaluasi kinerja alat Diagnostic Pocket (n=54) dalam mengukur suhu tubuh, saturasi oksigen (SpO₂), dan denyut jantung (BPM) dengan membandingkannya terhadap alat standar (thermogun dan pulse oximeter). Analisis statistik dilakukan menggunakan uji paired t-test atau Wilcoxon signed-rank test untuk signifikansi perbedaan, analisis Bland-Altman untuk menilai ti…
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creator: Mohamad Sofie
creator: Ichsan Widiyana
creator: Bayu Wahyudi
rights: Copyright (c) 2025 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-10-31
publication date: 2025-10-31
starting page: 123
ending page: 129
doi: 10.26623/elektrika.v17i2.12928

MANAJEMEN ALIRAN ENERGI MENGGUNAKAN ALGORITMA GENETIK PADA DC/AC MIKROGRID
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description: Decentralized electricity generation using renewable energy is increasingly being used to promote social inclusion in rural areas. In areas without electricity network access, more and more grid infrastructure is being installed using generators. This energy source only serves to provide electricity at that location, while the local population's electricity needs increase annually. The use of renewable energy-based microgrids, particularly photovoltaic (PV) energy, in rural locations can contribute to the achievement of sustainable development goals. The management of these microgrids can ensure a sustainable electricity supply for the local population. To achieve convergence between universal access to the population's energy needs and energy provision using microgrids, the use of optimization algorithms for better planning and operational efficiency of microgrids is crucial. To this end, a genetic algorithm was used for optimal energy flow management in a multi-PV and multi-load system, to test the microgrid's ability to achieve these goals. The results showed that optimal microgrid management guarantees a Power Supply Loss Probability of 0.16%, electricity cost savings of 53%, and an emission savings factor of 88.9%. The low cost of electricity obtained demonstrates that this method offers a real opportunity to improve electricity access for low-income rural populations. Similarly, the maximum renewable factor value obtained indicates a reduction in generator operating time, which significantly reduces operational costs and greenhouse gas emissions. Keywords: Microgrid, Energy Management, Photovoltaic, Wind Turbine, Genetic Algorithm ABSTRAK Pembangkitan energi listrik terdesentralisasi memakai energi terbarukan semakin banyak digunakan untuk mendorong inklusi sosial penduduk di wilayah pedesaan. Dalam daerah yang belum terjangkau jaringan listrik, maka semakin banyak infrastruktur jaringan yang dipasang menggunakan genset. Sumber energi ini hanya berfungsi untuk…
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creator: Adhi Kusmantoro
rights: Copyright (c) 2025 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-10-27
publication date: 2025-10-27
starting page: 102
ending page: 112
doi: 10.26623/elektrika.v17i2.12915

PROTOTYPE SISTEM PARKIR BERBASIS IOT MENGGUNAKAN ESP32, SENSOR INFRARED, DAN FIREBASE DENGAN INTEGRASI KAMERA
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description: The demand for parking spaces in shopping centers is increasing due to the growing number of visitors using private vehicles. A common problem faced by these visitors is the excessive time spent searching for an empty parking slot, often requiring them to circle the entire parking area just to find a single available space. This research aims to design an Internet of Things (IoT)-based parking monitoring system. The system integrates multiple devices, including an Arduino Uno, ESP32, FC-51 infrared sensors, LED indicators, an LCD screen, a camera, and a web application connected to Firebase. The development methodology follows a prototyping approach, which involves several stages: requirements gathering, rapid design, prototype construction, evaluation, and refinement. The test results demonstrate that the system functions as intended: the infrared sensors accurately detect vehicle presence, the camera captures clear images, and the web application near real-time parking slot availability in a user-accessible manner. Based on questionnaire results, a large majority of respondents (>90%) provided positive feedback, rating the system as practical and effective. Therefore, this research successfully achieves its objectives and shows strong potential for real-world implementation on a larger scale. Keywords: Internet of Things, ESP32, Firebase, Prototype, Parking System ABSTRAK Kebutuhan tempat parkir di pusat perbelanjaan semakin meningkat dengan banyaknya pengunjung yang membawa kendaraan pribadi. Masalah yang sering terjadi bagi penginjung adalah menghabiskan waktu lama dalam mencari slot parkir kosong hingga memutari seluruh parkiran untuk sekedar mendapatkan satu slot parkir. Penelitian ini bertujuan merancang sebuah sistem pemantauan parkir berbasis Internet Of Things (IoT). Sistem ini akan mengintegrasikan banyak perangkat seperti arduino uno, ESP32, sensor infrared FC-51, LED indikator, LCD, kamera dan aplikasi web yang terhubung dengan firebase. Metode pengemba…
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creator: Afri Yudha
creator: Theresia Febriani Jesica Puri
rights: Copyright (c) 2026 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2026-04-09
publication date: 2026-04-09
starting page: 1
ending page: 8
doi: 10.26623/elektrika.v18i1.12798

INTERNET OF THINGS-BASED WATER PIPE LEAK DETECTION SYSTEM
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description: Leaks in pipelines are a very important issue and should not be underestimated in terms of handling and resolution. If a leak in a pipe is not addressed immediately, it can cause adverse effects, such as a decrease in water flow efficiency, and in some conditions, it can even stop the flow of water completely. Therefore, a water pipe leak detection system is needed to be implemented in homes. In this research, a prototype of a water pipe leak detection system consisting of a 4-branch and a T-branch was built to simulate piping conditions in users' homes. This system uses a water flow meter sensor as a leak detection sensor by comparing the difference in water discharge readings between sensors. me-ter water flow sensor is a sensor that is very suitable for this task. The water flow meter sensor works on the principle of hall effect and can read the water flow rate precisely and accurately with a reading accuracy of 9.9%. The system is IoT connected to blynk for easy monitoring and maintenance by the user. From 10 experiments conducted, the system successfully detected leaks with 100% success rate. The delay that occurs when sending data from the microcontroller to blynk is 67 ms.
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creator: Anhar
creator: Daffa Hanif Widyatma
creator: Ery Syafrianti
creator: R.A Rizka Qori Yuliani Putri
rights: Copyright (c) 2025 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-10-21
publication date: 2025-10-21
starting page: 88
ending page: 93
doi: 10.26623/elektrika.v17i2.12750

IMPLEMENTASI SISTEM IOT BERBASIS LORA DAN ARIMA UNTUK OPTIMASI DISTRIBUSI AIR BERSIH
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description: The current clean water distribution system is still operated manually, which is considered inefficient and prone to delays in the distribution process. Therefore, this study aims to develop a water distribution system based on the Internet of Things (IoT), integrating LoRa communication and ARIMA predictive modeling. The system consists of three ESP32 nodes that communicate with each other via a LoRa network: node 1 functions as a sensor data collector, the gateway node transmits the data to Firebase, and node 2 controls the water pump via a relay. A JSN-SR04T sensor is used to measure water level, while a Water Flow Sensor detects the flow rate. The ARIMA algorithm is implemented to predict water usage patterns based on historical data. Test results show that the JSN-SR04T sensor accurately detects changes in water level with an error of less than 1 cm compared to actual measurements, and the water level percentage displayed on the application aligns with manual calculations. LoRa communication performs optimally at a distance of 10 meters with an RSSI of -47 dBm and SNR of 9.75 dB, but degrades at 100 meters (RSSI -121 dBm, SNR -6.25 dB). The ARIMA model yields prediction errors ranging from 3.81% to 23.13%. This system successfully provides real-time monitoring and water usage prediction to support more efficient and optimized water distribution. Keywords: ARIMA, Long Range, Water Flow Sensor, JSN-SR04T, IoT ABSTRAK Sistem pendistribusian air bersih yang masih dilakukan secara manual dinilai kurang efisien dan berpotensi menimbulkan keterlambatan dalam proses distribusi. Oleh karena itu, penelitian ini bertujuan untuk mengembangkan sistem distribusi air berbasis Internet of Things (IoT) yang mengintegrasikan komunikasi LoRa dan pemodelan prediktif ARIMA. Sistem ini terdiri dari tiga node ESP32 yang saling terhubung melalui jaringan LoRa, yaitu node 1 yang bertugas mengumpulkan data sensor, node gateway yang berfungsi mengirim data ke Firebase, dan node 2 yang me…
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creator: Fariz Lazuardi
creator: Zulhelman
rights: Copyright (c) 2025 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-10-27
publication date: 2025-10-27
starting page: 94
ending page: 101
doi: 10.26623/elektrika.v17i2.12654

PENGEMBANGAN SISTEM WEB UNTUK PERENCANAAN JARINGAN BACKBONE DWDM DENGAN VISUALISASI INTERAKTIF DAN ESTIMASI KEBUTUHAN PERANGKAT
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description: The demand for backbone networks capable of handling high capacity and reliability is increasing in line with the growth of digital services. Dense Wavelength Division Multiplexing (DWDM) technology has emerged as a leading solution due to its ability to transmit multiple optical signals through a single fiber. However, the planning process for DWDM backbone networks is often conducted separately, involving independent calculations of network performance, route visualization, and device requirement estimation (BoM). This disintegration can lead to data inconsistency, longer planning time, and difficulties in decision-making. This study aims to develop a web-based system that integrates the entire DWDM network planning process, from technical calculations (power budget, rise time budget, link margin, total loss, and OSNR), interactive route visualization using digital maps, to optical device estimation. The system is developed using Python with the support of libraries such as Pandas, Flask, and Leaflet.js. A case study was conducted on the BSD–Serang route involving 13 nodes. The test results show that the system is capable of producing accurate and consistent calculations in accordance with technical standards, interactive and informative route visualization, and well-structured BoM estimation that can be downloaded in Excel format. Based on system testing, the functional suitability achieved a score of 100%, and the average usability score was 82.75 based on the System Usability Scale, classified in the Excellent category. Keywords: Bill of Material, DWDM, Network Visualization, Optical Network Planning, Optical Performance Analysis. ABSTRAK Kebutuhan akan jaringan backbone yang mampu menangani kapasitas besar dan andal menjadi semakin meningkat seiring dengan pertumbuhan layanan digital. Teknologi DWDM (Dense Wavelength Division Multiplexing) menjadi solusi utama karena kemampuannya dalam mengirimkan banyak sinyal optik melalui satu serat optik. Namun, proses per…
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creator: Salsabila Agatha
creator: Asri Wulandari
creator: Angga Fauzi
rights: Copyright (c) 2025 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-10-29
publication date: 2025-10-29
starting page: 113
ending page: 122
doi: 10.26623/elektrika.v17i2.12645

RANCANG BANGUN SISTEM INFORMASI JALUR FEEDER UNTUK MENDUKUNG PENANGANAN FIBER CUT PADA JARINGAN FTTH
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description: FTTH (Fiber to the Home) is a fiber optic-based telecommunication network technology that provides direct internet services to customers' homes. One of the challenges in its implementation is the occurrence of disruptions caused by fiber cuts, which affect service quality. This study designs a feeder route information system using an interactive map to facilitate the identification process of affected feeder lines and customers. The system is developed using the Laravel and React.js frameworks, and utilizes Leaflet as a mapping library based on OpenStreetMap. System development follows the waterfall method, consisting of the stages: requirement, design, implementation, verification, and maintenance. The testing results of the feeder route visualization system and blast message feature indicate that the system has been successfully implemented and meets all functional criteria. Website testing was conducted based on three aspects: functional suitability, usability, and performance efficiency. The functional suitability aspect showed a feasibility rate of 100%, usability testing using the SUS method yielded an average score of 81 categorized as excellent, and performance efficiency testing produced an average score of 94%, classified as grade A. Therefore, this system is well-accepted and considered efficient in supporting the handling of fiber optic network disruptions. Keywords: Fiber Optic; Fiber to the Home; Information System; Laravel; Leaflet ABSTRAK FTTH (Fiber to the Home) merupakan teknologi jaringan telekomunikasi berbasis fiber optik yang menyediakan layanan internet langsung ke rumah pelanggan. Salah satu tantangan dalam implementasinya adalah gangguan akibat terputusnya kabel (fiber cut) yang berdampak pada kualitas layanan. Penelitian ini merancang sistem informasi jalur feeder melalui peta interaktif untuk mempermudah proses identifikasi jalur feeder dan pelanggan yang terdampak oleh gangguan. Sistem ini dikembangkan menggunakan framework Laravel dan Re…
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creator: Adinda Mutiara Putri
creator: Asri Wulandari
creator: Damar Hayyu Raharjo
rights: Copyright (c) 2025 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-10-16
publication date: 2025-10-16
starting page: 70
ending page: 80
doi: 10.26623/elektrika.v17i2.12563

PROTOTYPE SISTEM OTOMATISASI LAMPU DAN AC BERBASIS INTERNET OF THINGS
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description: The unnecessary use of electricity for lighting and air conditioning (AC) in empty rooms remains a common problem in many buildings. This study aims to design and build a prototype of an Internet of Things (IoT)-based lighting and AC automation system to improve energy efficiency. Using PIR sensors to detect human presence, while IR Transmitter sensors send signals to the AC for automatic adjustment. The ESP8266 microcontroller serves as the control center and is connected to a relay module to manage the electrical current. The system can also be controlled via a Telegram Bot, allowing users to activate and deactivate devices remotely. The circuit has been effectively and safely integrated. However, further development is needed to accurately evaluate its performance and energy efficiency on a larger building scale. This system is expected to have potential as an energy efficiency solution in active building environments. This research is anticipated to serve as a foundation for the development of broader energy automation systems and integration with other smart home devices in the future. Keywords: IoT, Otomatisasi, AC Control, Sensor PIR, Sensor IR Transmitter ABSTRAK Penggunaan tenaga listrik yang tidak perlu dari pencahayaan dan pendingin ruangan (AC) di ruang kosong masih menjadi permasalahan umum di banyak bangunan. Penelitin ini bertujuan merancang dan membangun prototipe sistem otomatisasi lampu dan AC berbasis Internet of Things (IoT) guna meningkatkan efesiensi energi. Menggunakan sensor PIR untuk mendeteksi keberadaan manusia, sementara sensor IR Transmitter yang mengirimkan sinyal ke AC untuk pengaturan otomatisnya. Mikrokontroler ESP8266 berfungsi sebagai pusat kendali dan dihubungkan ke modul relay untuk mengelola aliran listrik. Sistem ini juga dapat dikendalikan melalui Telegram Bot yang memungkinkan pengguna untuk mengaktifkan dan menonaktifkan perangkat jarak jauh. Sirkuit telah disatukan secara efektif dan aman. Meskipun demikian pengembangan leb…
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creator: Refida Septiana Putri
creator: Firman Nur Hidayat
creator: Sony Subagyo
creator: Kuat Indartono
rights: Copyright (c) 2025 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-10-16
publication date: 2025-10-16
starting page: 81
ending page: 87
doi: 10.26623/elektrika.v17i2.12547

SIMULASI PENETRASI PLTS ATAP YAYASAN TUNAS MANUNGGAL KAPASITAS 107 KWP KE GRID PLN 20 KV
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description: Along with changes in PLN regulations, the demand for rooftop solar PV (PLTS) permit applications under on-grid systems has increased due to the decreasing cost of equipment. Yayasan Tunas Manunggal has installed a 107 kWp rooftop solar PV system with a contractual power of 865 kVA supplied from PLN Substation PJ096. One of the main challenges of renewable energy is intermittency due to the characteristics of its primary energy source, where solar PV depends on sunlight intensity. The load pattern also significantly affects the PV system’s ability to supply loads to meet its contractual targets. This study aims to evaluate the power quality and reliability of electricity supply during weekly load dynamics. The method involves analyzing the load trend variations during weekdays and weekends, which critically affect the power factor, harmonics, and power flow direction. The results show that during weekday conditions, no reverse power occurs, and the grid quality remains stable. During weekend conditions, reverse power flow to the PLN grid occurs between 07:22 and 15:07, with the highest reverse power recorded at 65.540 watts at 12:28. The occurrence of reverse power flow to the PLN grid led to a notable increase in current Total Harmonic Distortion (THD-I), rising from an average value of 19.88% (recorded during holidays) to 31.11%. In contrast, other power quality parameters, such as voltage magnitude and voltage THD, remained within acceptable limits as per the relevant standards and were not significantly impacted. Keywords: solar PV, load profile, reverse power. ABSTRAK Seiring perubahan regulasi PLN minat pengajuan ijin PLTS Atap dengan system On Grid cukup banyak karena biaya perangkat yang semakin murah. Yayasan Tunas Manunggal memiliki 107 KWp daya kontrak ke PLN sebesar 865 KVA yang di suplai dari Gardu PLN PJ096. Problem utama energi terbarukan adalah intermittensi karena karakteristik sumber energi primernya, dimana PLTS dihadapkan pada intensitas penyinar…
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creator: Deni Nurul Huda
creator: Gunawan
rights: Copyright (c) 2025 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-10-16
publication date: 2025-10-16
starting page: 62
ending page: 69
doi: 10.26623/elektrika.v17i2.12512

RANCANG BANGUN COOLSTORAGE IKAN NELAYAN SKALA KECIL DENGAN THERMOELECTRIC BERBASIS ESP DAN TEKNOLOGI INTERNET OF THINGS (IOT) MENGGUNAKAN FUZZY MAMDANI DAN TSUKAMOTO
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description: Indonesia has a vast marine area, making it the main source of livelihood for fishermen through fishing. However, fresh fish is highly perishable, requiring effective storage methods to maintain its freshness. One of the problems faced by fishermen is the limited storage time with ice cubes that melt quickly. To overcome this, a coolstorag system based on Thermoelectric Cooler (TEC) technology without harmful refrigerants was developed, which is able to maintain cold temperatures by absorbing heat. This system is equipped with Internet of Things (IoT) technology for real-time temperature monitoring using ESP32 and DS18B20 temperature sensors, which display data through LCD and web based interface. Based on the test, the combination of ice cubes with the help of TEC shows the best performance, able to reduce the temperature from 3°C to 0,13°C within 30 minutes and maintain it stably. The test results are high accuracy with an average error in temperature of 26%. In addition, the IoT monitoring performance is able to send data to the website with an average speed of 499ms per cycle. The use of fuzzy logic methods with Mamdani and Tsukamoto approaches shows different results, where Mamdani fuzzy is more responsive to temperature changes, while Tsukamoto fuzzy provides more stable temperature control. This system is designed to help smallscale fishermen maintain the quality of fish efficiently and environmentally friendly, so that the fish remains fresh to the hands of consumers. Keywords: Coolstorage, Fuzzy, Thermoelectric, ESP32, IoT ABSTRAK Indonesia memiliki wilayah laut yang luas, menjadikannya sumber utama penghidupan nelayan melalui penangkapan ikan. Namun, ikan segar sangat mudah rusak sehingga membutuhkan metode penyimpanan yang efektif untuk menjaga kesegarannya. Salah satu masalah yang dihadapi nelayan adalah keterbatasan waktu penyimpanan dengan es batu yang cepat mencair. Untuk mengatasi hal ini, dikembangkan sistem coolstorag berbasis teknologi Thermoelect…
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creator: Anggi Aulia Zahra
creator: Rindu Marito Nababan
creator: Suci Airtami Hutoma Amir
creator: Iman Fahruzi
rights: Copyright (c) 2026 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2026-04-28
publication date: 2026-04-28
starting page: 21
ending page: 30
doi: 10.26623/elektrika.v18i1.12383

ANALISIS HASIL PENGUJIAN TAN DELTA STATOR GENERATOR SETELAH OVERHAUL MENGGUNAKAN OMICRON CPC 100 DAN CP-TD1 DI PLTU SUMBER ALAM SEKURAU TANJUNG SELOR
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description: Tan delta is a critical parameter in assessing the insulation quality of generator stators, used to evaluate the condition and performance of insulation systems. This study aims to analyze the results of tan delta testing on a generator stator after an overhaul, using the Omicron CPC 100 and CP-TD1 devices at the Sumber Alam Sekurau Steam Power Plant, Tanjung Selor. The testing process involved measuring tan delta values at various voltage levels according to international testing standards to determine the extent of degradation or damage in the insulation material. The test data were analyzed to identify changes in tan delta values before and after the overhaul and to evaluate the maintenance process's efficiency in restoring insulation quality. The study results revealed a significant improvement in tan delta values after the overhaul, with measurements falling within the safe range defined by IEEE 43-2000 standards. The use of Omicron CPC 100 and CP-TD1 devices proved effective in delivering accurate and reliable testing results, facilitating a comprehensive evaluation of insulation conditions. The study concludes that tan delta testing is crucial in ensuring generator reliability post-overhaul. This analysis provides recommendations for periodic maintenance and testing to minimize insulation failure risks and enhance the efficiency and reliability of the power generation system at the Sumber Alam Sekurau Steam Power Plant. Keywords: Tan delta, generator stator, overhaul, Omicron CPC 100, CP-TD1, steam power plant. ABSTRAK Tan delta merupakan salah satu parameter penting dalam pengujian kualitas isolasi pada stator generator, yang digunakan untuk mengevaluasi kondisi dan performa sistem isolasi. Penelitian ini bertujuan untuk menganalisis hasil pengujian tan delta pada stator generator setelah proses overhaul, menggunakan perangkat Omicron CPC 100 dan CP-TD1 di PLTU Sumber Alam Sekurau, Tanjung Selor. Proses pengujian melibatkan pengukuran nilai tan delta pada be…
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creator: Adi Gunawan
creator: Agus Adhi Nugroho
rights: Copyright (c) 2025 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-05-03
publication date: 2025-05-03
starting page: 21
ending page: 25
doi: 10.26623/elektrika.v17i1.11840

ADVANCED LINE FOLLOWER ROBOT DENGAN SENSOR ULTRASONIK UNTUK DYNAMIC OBSTACLE AVOIDANCE DAN SMARTPHONE-BASED CONTROL
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description: This research aims to develop functions for a line follower robot by adding the ability to detect objects in front of the robot using an HC-SR04 ultrasonic sensor, enabling the robot to stop and avoid collisions. In addition, the robot is equipped with a smartphone control function using Bluetooth. With the ultrasonic sensor positioned at the front of the robot, it can detect the distance of objects ahead, allowing the robot to stop its wheel movement when an object is detected nearby. In addition, the integration of the HC-05 Bluetooth module into the robot's system enables wireless control of the robot's movement via Bluetooth commands sent from a smartphone application. The methods used in this research include designing the robot's hardware circuitry, programming the Arduino microcontroller, developing a smartphone application, and testing the robot's performance in various scenarios. The results of the tests show that the robot can accurately follow the designated path, stop when an obstacle is detected in front of it, and respond to commands from the smartphone. The additional features implemented in this research extend the robot's functionality beyond simply following a predefined path. Keywords: Bluetooth HC-05, Robot Line Follower, Smartphone Control, Ultrasonic Sensor ABSTRAK Penelitian ini memiliki tujuan untuk mengembangkan fitur pada robot line follower dengan penambahan fitur mendeteksi benda atau objek didepan robot menggunakan sensor ultrasonic HC-SR04 agar robot dapat berhenti dan tidak membentur objek tersebut, serta penambahan fitur control robot menggunakan smartphone menggunakan bluetooth. Dengan adanya sensor ultrasonik yang terletak pada bagian depan robot, maka robot dapat mendeteksi jarak objek yang berada didepan robot sehingga robot mampu memiliki kemampuan untuk menghentikan gerakan roda Ketika terdeteksi ada objek dekat yang berada didepan robot. Selain itu dengan adanya modul Bluetooth HC-05 yang terintegrasi dengan sistem pada robot, …
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creator: Gregorius Dwi Perkasa
creator: Felix Yustian Setiono
rights: Copyright (c) 2025 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-05-03
publication date: 2025-05-03
starting page: 12
ending page: 20
doi: 10.26623/elektrika.v17i1.11813

ANALISIS SUSUT NON TEKNIS BERDASARKAN LOAD PROFILE DAN JAM NYALA PADA PELANGGAN AMR (AUTOMATIC METR READING) PT PLN (PERSERO) UP3 BIMA
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description: Technical and non-technical losses occurs when PLN distributes electricity from generators to customers. To reduce this loss, namely by grouping based on running hours and monitoring the customer's Load Profile parameters. Analysis of research is needed to reduce non-technical losses, especially for large power customers who use the AMR system, such as 189 UP3 Bima customers. In this research, 2 customers experienced a decrease in operating hours exceeding 100 hours, with indications of measurement anomalies in these customers. After normalizing the system, there was uncollected electricity usage from 2 customers totaling 120,457.43 kWh which had not been paid for. PLN UP3 Bima managed to reduce the shrinkage rate by 16% of the total non-technical shrinkage in June 2024 with a total of 749,686 kWh. Keywords: Electricity distribution, kWh meter, non-technical losses. ABSTRAK Susut teknis dan non teknis terjadi saat PLN mendistribusi tenaga listrik dari pembangkit hingga ke pelanggan. Untuk mengurangi susut tersebut yaitu dengan cara mengelompokkan berdasarkan jam nyala serta memantau parameter Load Profile pelanggan tersebut. Dibutuhkan suatu analisa atau penelitian, untuk menekan susut non teknis terutama pada pelanggan berdaya besar yang menggunakan sistem AMR, seperti pada pelanggan UP3 Bima sebanyak 189 pelanggan. Pada penelitian ini ada 2 pelanggan yang mengalami penurunan jam nyala melebihi 100 jam, dengan indikasi adanya anomali pengukuran di pelanggan tersebut. Setelah dilakukan penormalan sistem terdapat pemakaian tenaga listrik belum tertagih dari 2 pelanggan total sebesar 120.457,43 kWh yang belum terbayar. PLN UP3 Bima berhasil menekan angka susut sebesar 16% dari total susut nonteknis bulan Juni 2024 dengan jumlah 749.686 kWh.
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creator: Anggi Rachmawati
creator: Dedi Nugroho
rights: Copyright (c) 2025 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-05-04
publication date: 2025-05-04
starting page: 55
ending page: 61
doi: 10.26623/elektrika.v17i1.11498

DESAIN ALAT PENGUKUR TINGGI BADAN YANG DILENGKAPI DENGAN FITUR DETEKSI STUNTING
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description: Stunting in children has become an important global health problem and requires effective detection methods. This research has designed and developed an automatic child height measuring device equipped with a stunting detection feature to support early childhood health monitoring. This device utilizes an ultrasonic sensor to measure height in real time and compare the measurement results with applicable child growth standards to identify the risk of stunting in children. The design of this device has been designed so that it is ergonomic and easy to operate and can be used both in household environments and health facilities. Test results show that this device can provide height measurements with an accuracy rate of 98.5%, with an average time of 2.5 seconds for each measurement. And this device can detect stunting with a sensitivity level of 95%. Thus, this device can be an efficient device in assisting efforts to prevent and treat stunting in early childhood. This device is expected to make a significant contribution to improving the quality of early childhood health and supporting efforts to prevent stunting in the future. Keywords: Health, child health, stunting detection, height measurement ABSTRAK Stunting pada anak telah menjadi permasalahan kesehatan global yang penting dan memerlukan metode pendeteksian secara efektif. Penelitian ini telah merancang dan mengembangkan alat pengukur tinggi badan anak otomatis yang dilengkapi dengan fitur pendeteksian stunting untuk mendukung pemantauan kesehatan anak usia dini. Alat ini telah memanfaatkan sensor ultrasonik untuk melakukan pengukuran tinggi badan secara real time dan membandingkan hasil pengukuran dengan standar pertumbuhan anak yang berlaku untuk mengidentifikasi resiko stunting pada anak. Desain alat ini telah dirancang sehingga ergonomis dan mudah untuk dioperasikan, serta dapat digunakan baik di lingkungan rumah tangga maupun fasilitas kesehatan. Hasil pengujian menunjukkan bahwa alat ini mampu memberikan …
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creator: Elsyea Adia Tunggadewi
creator: Riky Tri Yunardi
creator: Eva Inaiyah Agustin
rights: Copyright (c) 2025 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-05-04
publication date: 2025-05-04
starting page: 42
ending page: 47
doi: 10.26623/elektrika.v17i1.11382

PERAN INTERNET OF THINGS DALAM MENINGKATKAN KEAMANAN DAN EFISIENSI TRANSPORTASI
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description: This research examines the role of the Internet of Things (IoT) in enhancing transportation safety and efficiency trough a literature review approach. The study focuses on literature published between 2013 and 2023, employing thematic and bibliometric analysis to explore IoT contributions in the transportation sector. IoT has proven to significantly contribute to transportation safety, such as through the implementation of NodeMCU ESP8266 for real-time vehicle location tracking and Raspberry Pi 3 for automated traffic violation detection. These systems utilize data from sensors and cameras to enable swift decision-making in traffic management. Additionally, the use of Arduino Mega 2560 microcontrollers in IoT-based traffic light control systems can prioritize emergency vehicles such as ambulances, thereby improving transportation efficiency in congested urban areas. The role of IoT in transportation safety includes the capability to detect threats in real-time through the integration of sensors, cameras, and other IoT devices. This technology enables transportation systems to provide early warnings, prevent accidents, and enhance traffic monitoring. In terms of efficiency, IoT helps optimize resource utilization by supporting emergency vehicles and adjusting traffic patterns based on demand. Bibliometric analysis reveals a growing trend in IoT-related publications in transportation, with significant collaboration between academia and industry. The integration of technologies like machine learning and cloud computing in IoT-based transportation systems further supports operational sustainability and logistics efficiency. In the continuously evolving digital era, the implementation of Internet of Things (IoT) technology has become a key catalyst in transforming traditional transportation systems into integrated smart ecosystems. This technology enables devices to communicate and share data in real-time, creating opportunities for faster and more accurate decision-maki…
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creator: Cherlene Kezia Rade Leba
rights: Copyright (c) 2025 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-05-03
publication date: 2025-05-03
starting page: 26
ending page: 31
doi: 10.26623/elektrika.v17i1.11367

PENERAPAN SKEMA POTT ECHO DENGAN WEAK INFEED UNTUK DISTANCE RELAY DALAM MENINGKATKAN KEANDALAN AUTORECLOSE PADA GI RADIAL UJUNG DI ULTG PANGKALAN BUN
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description: This study examines the implementation of the Permissive Overreach Transfer Trip (POTT) Echo scheme with the activation of the Weak-End Infeed (WEI) function on distance protection systems in a 150 kV transmission network to enhance protection reliability and selectivity, especially at substations with weak infeed currents. Before WEI activation, the protection system experienced delays or failures in detecting faults, particularly for faults in zone 2, where the relay tripped with a delay instead of achieving a desired reclose, thereby extending the Transmission Line Outage Duration (TLOD). After WEI activation, test results showed that the relay provided an instantaneous trip response, and the autoreclose function operated after 1000 ms, significantly reducing TLOD. The success of the echo signal ensured smooth communication between relays, supporting efficient protection coordination. Moreover, the selectivity function remained intact. The implementation of this scheme has proven to enhance the reliability of the protection system, offering a more stable and responsive solution for addressing the challenges posed by weak infeed currents. Keywords: POTT, Echo, Weak-End Infeed, Distance Protection, Autoreclose ABSTRAK Penelitian ini membahas implementasi skema Permissive Overreach Transfer Trip (POTT) Echo dengan aktivasi fungsi Weak-End Infeed (WEI) pada sistem proteksi jarak di jaringan transmisi 150 kV untuk meningkatkan keandalan dan selektivitas proteksi, khususnya di gardu induk dengan arus infeed lemah. Sebelum aktivasi WEI, sistem proteksi mengalami keterlambatan atau kegagalan dalam mendeteksi gangguan, terutama pada gangguan di zona 2, di mana relay memicu trip dengan waktu tunda, meskipun reclose diharapkan, sehingga memperpanjang durasi gangguan (Transmission Line Outage Duration - TLOD). Setelah aktivasi WEI, hasil pengujian menunjukkan bahwa relay memberikan respon trip instan, dan fungsi autoreclose dapat bekerja setelah 1000 ms, mengurangi TLOD seca…
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creator: Ale Septila Sakti
creator: Eka Nuryanto Budisusila
rights: Copyright (c) 2025 Elektrika https://creativecommons.org/licenses/by-nc-sa/4.0
date: 2025-05-04
publication date: 2025-05-04
starting page: 48
ending page: 54
doi: 10.26623/elektrika.v17i1.11095

ANALISA PENGARUH PERUBAHAN FREKUENSI DAN TEGANGAN TERHADAP EFISIENSI MOTOR INDUKSI TIGA FASA MENGGUNAKAN MATLAB SIMULINK
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description: The three-phase induction motor is one of the most widely used types of electric motor in the industrial world. In its application to regulate the speed and improve the efficiency of the motor used the method of Variable frequency drive (VFD) by changing the input frequencies. The final task uses a simulated simulation method of the simulink matlab that will analyze the influence of frequency and voltage changes on speed, slip, and motor efficiency. The results show that frequency and voltage changes have an impact on induction motor performance that includes speed, slip, and efficiency. Often, they scream and shout. From a frequency of 50 Hz, every 10 percent decrease in the Frequency then the speed also decreases by about 10 percent. Frequencies of 50 Hz and 45 Hz produce speeds of 1440 rpm and 1295 rpm. For the slip, the increase in frequency leads to a decrease in the motor slip value. At the frequencies of 50 Hz and 45 Hz produced slide values of 4% and 16%. The highest efficiency is given at a torque load of 5 Nm and a frequency of 50 Hz with an efficiency of 97%. Keywords: 3-phase induction engine, VFD, Matlab, Frequency, Speed, Slip, Efficiency ABSTRAK Motor induksi tiga fasa adalah salah satu jenis motor listrik yang paling banyak digunakan dalam dunia industri. Dalam penerapannya untuk mengatur kecepatan dan meningkatkan efisiensi motor digunakan metode Variable frequency drive (VFD) dengan mengubah frekuensi masukan. Penelitian ini menggunakan metode simulasi matlab simulink yang akan menganalisa mengenai pengaruh perubahan frekuensi dan tegangan terhadap kecepatan, slip, dan efisiensi motor. Hasil penelitian menunjukkan bahwa perubahan frekuensi dan tegangan mempunyai dampak terhadap kinerja motor induksi yang meliputi kecepatan, slip, dan efisiensi. Frekuensi berbanding lurus dengan kecepatan dan efisiensi. Dari frekuensi 50 Hz, setiap penurunan frekuensi 10% maka kecepatan juga turun sekitar 10%. Frekuensi 50 Hz dan 45 Hz menghasilkan kecepatan 1440 Rp…
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creator: Sulis Diantoro
creator: Dedi Nugroho
creator: Agus Adhi Nugroho
rights: Copyright (c) 2024 Elektrika
date: 2024-11-15
publication date: 2024-11-15
starting page: 127
ending page: 137
doi: 10.26623/elektrika.v16i2.8852

SMART AQUASCAPES DENGAN KONTROL SUHU, PENGATUR PH, DAN PAKAN OTOMATIS
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description: Aquascape as the art of designing and organizing a miniature water garden inside an aquarium has become a desirable hobby for nature lovers and aquatic enthusiasts. Although it offers natural beauty, aquascape requires intensive attention and maintenance to maintain the balance of the aquarium environment. Therefore, the Smart Aquascape concept emerged as an innovative solution by utilizing the integration of the Internet of Things (IoT) to monitor and control the condition of the aquarium environment in real-time through a digital platform that can help facilitate maintenance for aquascape hob-byists and maintain the balance of the aquarium ecosystem. This research aims to design an IoT system to monitor and con-trol water temperature, implement an automatic feeding mechanism, and design an accurate pH regulation system in an aquascape environment by integrating all these features into one connected control platform. Keywords: aquarium, ecosystem, IoT, smart aquascape, water. ABSTRAK Aquascape sebagai seni merancang dan mengatur taman air miniatur di dalam sebuah akuarium telah menjadi hobi yang diminati oleh pecinta alam dan penggemar akuatik. Meskipun menawarkan keindahan alam, aquascape memerlukan perhatian dan pemeliharaan yang intensif untuk menjaga keseimbangan lingkungan akuarium. Oleh karena itu konsep Smart Aquascape muncul sebagai solusi inovatif dengan memanfaatkan integrasi Internet of Things (IoT) untuk memantau dan mengontrol kondisi lingkungan akuarium secara real-time melalui platform digital yang dapat membantu memu-dahkan perawatan bagi para penghobi aquascape dan menjaga keseimbangan ekosistem akuarium. Penelitian ini ber-tujuan untuk merancang sistem IoT untuk memantau dan mengontrol suhu air, mengimplementasikan mekanisme pemberian pakan otomatis, dan merancang sistem pengaturan pH yang akurat dalam lingkungan aquascape dengan mengintegrasi-kan semua fitur tersebut ke dalam satu platform kontrol yang terhubung.
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creator: Ihda Rahmadaniar
creator: Arya Prabudi Jaya Priana
creator: Bayu Widodo
creator: Fikri Fadilah
creator: Irmansyah Irmansyah
creator: Jimmy Mohamad Alpino
creator: Marcella Corazon
creator: Muhammad Fajarudin
creator: Revanda Arifia
creator: Vanya Amanda Lovely
rights: Copyright (c) 2024 Elektrika
date: 2024-10-21
publication date: 2024-10-21
starting page: 120
ending page: 126
doi: 10.26623/elektrika.v16i2.9203

OPTIMASI PERTUMBUHAN MICROGREEN RED RADISH MELALUI OTOMATISASI PENYIRAMAN, PENYINARAN, DAN PENYESUAIAN SUHU BERBASIS IOT
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description: This research aims to optimize the growth of red radish microgreens through an automation system that integrates irri-gation, lighting, and temperature adjustment based on the Internet of Things (IoT). The research method involves the use of WS2812B LED strips as the lighting source for photosynthesis, soil moisture sensors to control irrigation, and DHT22 tem-perature sensors to adjust the ideal environmental temperature. Data collection combines relevant literature data with direct observations during the red radish microgreen planting process. Data analysis is conducted through descriptive approaches to understand the growth patterns of microgreen plants and correlation analysis to identify relationships be-tween various growth parameters. Additionally, the IoT system's response to changes in environmental conditions is ana-lyzed to evaluate the system's effectiveness in regulating lighting, irrigation, and temperature. The research findings indi-cate that the IoT-based automation system effectively enhances the growth and quality of red radish microgreens. The au-tomatic implementation of LEDs improves photosynthesis rates, while efficient irrigation systems ensure plants receive adequate water. The temperature automation system maintains optimal growth conditions and reduces the risk of thermal stress. Integrating this system into a website platform also enables remote control and monitoring. This automation system not only increases plant productivity and quality but also reduces maintenance costs and time, demonstrating the signifi-cant potential of IoT technology in modern agriculture. Keywords: Automation System, Growth, Internet of Things, Microgreen, Red Radish. ABSTRAK Penelitian ini bertujuan untuk mengoptimalkan pertumbuhan microgreen red radish melalui sistem otomatisasi yang mengintegrasikan penyiraman, penyinaran, dan penyesuaian suhu berbasis Internet of Things (IoT). Metode penelitian melibatkan penggunaan LED strip WS2812B sebagai sumber pencahay…
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creator: Tiara Safitrah
creator: Dea Ummul Khabibah
creator: Angga Eben Ezer
creator: Brilliant Sandynigy Fernando
creator: Edmund Banyu Kauripan
creator: Muchammad Alifandino Satrio
creator: Muhammad Hafizh Maulidan
creator: Nabil Arif A'isy
creator: Faldiena Marcelita
creator: Lathifunnisa Fathonah
rights: Copyright (c) 2024 Elektrika
date: 2024-10-21
publication date: 2024-10-21
starting page: 111
ending page: 119
doi: 10.26623/elektrika.v16i2.10429

A NOVEL APPROACH OF HUMAN EMOTIONAL ESTIMATION SYSTEM VIA MULTISENSORY DATASETS FUSION METHODS
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description: Human emotional understanding has become one of the most rapidly emerging fields developed over the years since the emotional state is created and influenced by several neither easily measured and nor predicted factors. The proposed novel approach is based on the mixture of the processed acceleration data of several designed activities and processed heart rate data under several emotional states, recorded by the application of`smart band devices. Since the processed acceleration and heart rate data are running on different dimensionalities and recorded by different types of sensors, some machine learning-based methods applied to fusing these two kinds of data. The results of the data fusion methods are defined as the new fused datasets for Multi-Layer Perceptron and Support Vector Machines classifiers based on a selected criterion. At last, the accuracy results of the selected classifiers running under the defined machine-learning-based fusion dataset compared to each other to find out the effectiveness of the proposed fusion method.
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creator: Felix Yustian Setiono
rights: Copyright (c) 2024 Elektrika
date: 2024-10-21
publication date: 2024-10-21
starting page: 103
ending page: 110
doi: 10.26623/elektrika.v16i2.10624

IMPLEMENTASI MANAJEMEN LAYANAN TEKNOLOGI INFORMASI DENGAN METODE AGILE PADA KPU KOTA SURABAYA
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description: Information technology has developed rapidly and has had a significant impact on various aspects of business life, allowing companies to compete more effectively with other companies in the same field. Information Technology Service Management (ITSM) is a concept that focuses on providing efficient and quality IT services in an organization, which in turn can increase individual and organizational productivity as a whole. The Surabaya City KPU faces several obstacles in recording inventory because it is still done manually, which causes the risk of losing inventory data. Additionally, inventory users often have difficulty reporting problems with the assets in use. This research aims to overcome these weaknesses by implementing a system that can assist the inventory process and improve services for users. In this research, open source software called GNU General Public License Infrastructure (GLPI) is used as an inventory and user service management system, with an Agile method approach. The implementation of this system is expected to increase inventory management efficiency and service quality at the Surabaya City KPU. Keywords: Agile Methodology, Service Management, ITSM, GLPI. ABSTRAK Teknologi informasi telah berkembang pesat dan memberikan dampak signifikan terhadap berbagai aspek kehidupan bisnis, memungkinkan perusahaan bersaing lebih efektif dengan perusahaan lain di bidang yang sama. Manajemen Layanan Teknologi Informasi (ITSM) merupakan konsep yang berfokus pada penyediaan layanan TI yang efisien dan berkualitas dalam suatu organisasi, yang pada gilirannya dapat meningkatkan produktivitas individu dan organisasi secara keseluruhan. KPU Kota Surabaya menghadapi beberapa tantangan dalam hal pencatatan inventaris karena masih dilakukan secara manual, yang menyebabkan risiko kehilangan data inventaris. Selain itu, pengguna inventaris sering kali mengalami kesulitan melaporkan masalah terkait aset yang digunakan. Penelitian ini bertujuan untuk mengatasi kelemah…
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creator: Achmad Zaffri Maulana
creator: Aryo Nugroho
rights: Copyright (c) 2024 Elektrika
date: 2024-10-21
publication date: 2024-10-21
starting page: 93
ending page: 102
doi: 10.26623/elektrika.v16i2.10564

ANALISIS INTEGRASI PLTB PADA STABILITAS FREKUENSI DALAM JARINGAN KELISTRIKAN SULBAGSEL BERDASARKAN RATE OF CHANGE OF FREQUENCY
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description: The South Sulawesi electrical system, which is an interconnected network supplying electricity to South Sulawesi, West Sulawesi, Central Sulawesi, and Southeast Sulawesi, faces new challenges in integrating wind power plants (PLTB) into frequency stability. This study analyzes the impact of integrating wind power plants (PLTB) on the frequency stability of the Sulbagsel electrical system, focusing on the rate of change of frequency (RoCoF). Under normal conditions without PLTB, the system frequency remains stable at 50 Hz during both daytime and nighttime peak loads. Integration of PLTB causes the frequency to increase from 50 Hz to a maximum peak, ranging from 50.111 Hz to 50.978 Hz during the day and from 50.113 Hz to 50.613 Hz at night. A frequency decrease occurs when the PLTB is removed, with the frequency dropping from 50 Hz to a minimum value between 49.270 Hz and 49.884 Hz during the day and between 49.326 Hz and 49.884 Hz at night. These frequency fluctuations indicate the system's sensitivity to power variability from wind energy and the chal-lenges in managing frequency drops due to the loss of PLTB. The system response varies during peak load periods in the day and night, with smaller frequency fluctuations during the day compared to nighttime, possibly due to differences in load demand profiles and generator composition. These findings provide insights into the impact of PLTB on frequency stability and power management in renewable energy-based electrical systems. Keywords: WPP Integration, Frequency Stability, Rate of Change of Frequency (RoCoF). ABSTRAK Sistem kelistrikan Sulawesi Selatan, yang merupakan jaringan interkoneksi yang memasok energi listrik ke Sulawesi Se-latan, Sulawesi Barat, Sulawesi Tengah, dan Sulawesi Tenggara, menghadapi tantangan baru dalam integrasi pembang-kit listrik tenaga bayu (PLTB) terhadap stabilitas frekuensi. Penelitian ini menganalisis dampak integrasi pembangkit listrik tenaga bayu (PLTB) terhadap stabilitas frekuensi …
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creator: Rizky Wahyu Adi Saputra
creator: Dedi Nugroho
rights: Copyright (c) 2024 Elektrika
date: 2024-10-21
publication date: 2024-10-21
starting page: 84
ending page: 92
doi: 10.26623/elektrika.v16i2.10342

OPTIMASI JARINGAN INTERNET MENGGUNAKAN KOMBINASI LOAD BALANCING DAN QUEUE PADA ROUTER MIKROTIK
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description: The need for internet access is currently very high to search for information and communication. Many agencies have integrated the internet in use to meet the needs of data communication technology. The current system has many weaknesses, including the internet source at the KPU Surabaya City has 2 ISPs that run independently to accommodate the large traffic load that results in slow internet connections. Load balancing aims to prevent overload that will cause a decrease in network quality, by stabilizing the traffic load. In addition to Load Balancing, for bandwidth distribution, the simple queue feature is used to divide the download and upload speeds on each distribution path on the router to prevent clients from using excessive traffic. With the test results using the Load balancing technique on ether 1 and ether 2 on ISP line 1 showing an Rx level of 33.76 kbps and tx of 17.6 kbps, while on ISP line 2 showing an Rx of 28.9 kbps and Tx of 877.4 kbps which proves that load balancing has been running and a simple queue to divide bandwidth on upload and download traffic, in the test for uploading in the data and logistics room getting 126.4 kbps and downloading 4.9 Mbps, while in the legal and tekmas room getting 101.4 kbps upload and downloading 4.9 Mbps then the network has been divided and avoided data distribution congestion on the network because the two internet lines help each other, then by setting the bandwidth, each room in the KPU of Surabaya City will have its own internet usage limitations. Keywords: Load Balancing, Simple queue, Bandwidth Management, optimation, network ABSTRAK Kebutuhan akses internet saat ini sangat tinggi untuk mencari informasi informasi maupun komunikasi. Banyak instansi yang telah mengintegrasikan internet dalam penggunaan untuk memenuhi kebutuhan teknologi komunikasi data. Sistem saat ini memiliki banyak kelemahan di antaranya adalah sumber internet di KPU Kota Surabaya mempunya 2 ISP yang berjalan sendiri - sendiri untuk menam…
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creator: Muhammad Yusuf Fardiansyah
creator: Aryo Nugroho
rights: Copyright (c) 2024 Elektrika
date: 2024-10-21
publication date: 2024-10-21
starting page: 76
ending page: 83
doi: 10.26623/elektrika.v16i2.10337

DESIGN DRY CABINET MENGGUNAKAN MICROCONTROLLER ESP 32
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description: Dry Cabinet is a highly useful tool, looking at the highly advanced era and tools that require special conditions are very unfortunate if damage occurs. The optimal relative humidity used for camera lens storage ranges from 35% - 60%. Another example for items that require a certain humidity is medicines. Optimalization humidity for storing medicines is under 60%. This Dry cabinet design uses an ESP32 micro controller, there are supporting components for the HTU 21 D temperature sensor, LCD, relay, LED, 3 volts AMS Stepdown, and Push button. The purpose of this research is to make it easier for humans to store goods that require special monitoring of humidity. With HTU21D temperature and humidity meters, the temperature and humidity in the Dry Cabinet Room can be measured. The method in this study uses 3 stages of initiation of temperature recognition by the HTU21D sensor, then setting the desired set point, and has an output in main-taining the desired humidity. The results in this study, based on temperature and humidity testing, humidity can reach the optimal set point at 35% - 40% humidity, and takes 2 hours. When the heatsink is on the humidity will decrease and when the heatsink is off the humidity will increase. Range for the temperature in the dry cabinet room is 30 to 33 degrees Celsi-us. Keywords: Dry Cabinet, ESP 32, HTU21D, Humidity, Temperature ABSTRAK Dry Cabinet merupakan alat yang berdaya guna tinggi, dengan melihat pada zaman yang sangat maju dan alat – alat yang membutuhkan kondisi khusus amat di sayang jika terjadi kerusakan. Kelembaban relatif yang optimal digunakan untuk penyimpanan lensa kamera berkisar antara 35% - 60%. Contoh lain untuk barang yang membutuhkan kondisi kelembaban tertentu ialah obat – obat tan, kelembaban yang optimal untuk menyimpan obat – Obata tan berkisar dibawah 60%. Rancangan Dry cabinet ini menggunakan micro controller ESP32, terdapat komponen pendukung sensor suhu HTU 21 D, lcd, relay, LED, Stepdown AMS 3 volts, dan Pu…
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creator: Ismail Al Faruqi
creator: Adhi Kusmantor
rights: Copyright (c) 2024 Elektrika
date: 2024-10-21
publication date: 2024-10-21
starting page: 69
ending page: 75
doi: 10.26623/elektrika.v16i2.9574