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Jurnal Surya Energy
Published by Universitas Muhammadiyah Palembang
ISSN : 25287400     EISSN : 2615871X     DOI : https://doi.org/10.32502/jse
Core Subject : Engineering,
Control & Systems Engineering Electrical & Electronics Engineering Engineering
Jurnal Surya Energy (JSE), Electrical Engineering, Faculty of Engineering, Muhammadiyah University Palembang is a journal that contains scientific research results in the field of Electrical Engineering. JSE is for lecturers, students, researchers, and practitioners who concentrate and contribute in the field of Electrical Engineering, which have never been published in other journals. Jurnal Surya Energy (JSE) accepts articles to be published every March and September. Focus and Scope 1. Power Systems : Generator, Power Distribution, Electrical Power Convertion, Protection Systems, Electrical, Materials, Newreble Energy, and Signal, System and Electronics 2. Digital Signal Processing : Robotic Systems, Micro Electronics, Embedded Systems, and Computer System 3. Information Technology : Communication Systems
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 34 Documents
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Dampak Kapasitansi Terhadap Sebaran Tegangan Isolator Rantai Transmisi Tegangan Tinggi Ali Nurdin
Jurnal Surya Energy Vol. 10 No. 2 (2026)
Publisher : Teknik Elektro, Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jse.v10i2.1221

Abstract

Pada sistem transmisi tenaga listrik, isolator berfungsi sebagai pemisah antara konduktor bertegangan tinggi dengan bagian menara yang terhubung ke tanah. Salah satu jenis isolator yang umum digunakan adalah isolator tipe pin, yang memiliki kemampuan kerja hingga mencapai 80 kV. Namun, pada jaringan transmisi dengan tegangan di atas 50 kV, isolator tipe rantai lebih sering digunakan karena mampu menahan tegangan yang lebih besar serta memberikan jarak isolasi yang lebih fleksibel dan aman. Secara konstruktif, isolator tersusun dari bahan porselin yang memiliki sifat isolatif tinggi, dengan elektroda-elektroda logam yang diapit di kedua ujungnya. Dari sudut pandang elektrik, isolator dapat dimodelkan sebagai rangkaian beberapa elemen kapasitif. Nilai kapasitansi pada setiap elemen dapat meningkat apabila permukaan isolator tertutup oleh lapisan penghantar akibat kelembapan udara, polusi, debu, atau kotoran lainnya. Akibatnya, distribusi tegangan pada rantai isolator menjadi tidak merata. Elemen isolator yang berdekatan dengan konduktor mengalami tegangan tertinggi karena berinteraksi langsung dengan potensial saluran, sedangkan elemen yang lebih dekat dengan menara mengalami penurunan tegangan secara bertahap. Penelitian ini bertujuan membandingkan tegangan yang diterima isolator ketika pengaruh kapasitansi diabaikan dengan kondisi ketika kapasitansi antarkeping isolator dan kapasitansi shunt ke tanah turut diperhitungkan. Dari hasil analisis, diperoleh bahwa tanpa adanya pengaruh kapasitansi, setiap isolator mengalami tegangan yang sama, yaitu 86,6 kV. Namun, ketika kapasitansi dimasukkan ke dalam perhitungan, distribusi tegangannya menjadi tidak merata dan menunjukkan variasi, dengan nilai terendah hingga tertinggi terjadi pada isolator yang berada paling dekat dengan kawat fasa. Pemahaman terhadap distribusi tegangan ini sangat penting untuk merancang sistem isolasi yang efisien dan menjamin keandalan operasi jaringan transmisi tegangan tinggi.
Pengembangan Sistem Monitoring Kualitas Air Kolam Berbasis IoT Nita Nurdiana; Emidiana Emidiana; M. Saleh Al Amin
Jurnal Surya Energy Vol. 10 No. 2 (2026)
Publisher : Teknik Elektro, Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jse.v10i2.1451

Abstract

Penelitian ini bertujuan merancang dan mengimplementasikan sistem monitoring kualitas air kolam berbasis Internet of Things (IoT) yang mampu melakukan pemantauan parameter lingkungan perairan secara real-time, akurat, dan berkelanjutan guna mendukung kegiatan budidaya ikan air tawar. Sistem dikembangkan menggunakan mikrokontroler ESP32 sebagai unit pemrosesan utama yang terintegrasi dengan sensor DS18B20 untuk pengukuran suhu, sensor pH 4502C untuk derajat keasaman, serta sensor TDS Meter v1.0 untuk mengukur total padatan terlarut (TDS). Pengujian sistem dilakukan selama tujuh hari berturut-turut pada kolam air tawar dengan penempatan sensor pada dua kedalaman berbeda, yaitu 20 cm dan 30 cm, untuk menganalisis variasi kualitas air secara vertikal. Data hasil pengukuran dikirimkan secara nirkabel melalui jaringan WiFi dan ditampilkan pada platform IoT dalam bentuk data numerik dan grafik historis secara real-time. Hasil penelitian menunjukkan bahwa suhu air pada lapisan permukaan lebih fluktuatif dibandingkan kedalaman 30 cm akibat pengaruh langsung radiasi matahari, sementara nilai pH berada pada kisaran netral dan cenderung lebih tinggi di permukaan kolam yang dipengaruhi oleh aktivitas fotosintesis organisme air. Nilai TDS terukur lebih tinggi pada kedalaman 30 cm, yang mengindikasikan adanya akumulasi padatan terlarut di lapisan bawah kolam. Pengujian akurasi sensor menunjukkan tingkat kesalahan sebesar 1,09% untuk suhu, 1,39% untuk pH, dan 3,70% untuk TDS, sehingga dapat disimpulkan bahwa sistem monitoring kualitas air berbasis ESP32 memiliki kinerja yang baik, stabil, dan layak diterapkan sebagai solusi pemantauan kualitas air kolam secara efektif.
Pengaruh Variasi Pembebanan Pada Kinerja Transformator 60 MVA di PT. PLN Gardu Induk Keramasan Moh. Wahyu Aminullah; Legi Putra; Alisha Gita Gumilang; Muhammad Hurairah
Jurnal Surya Energy Vol. 10 No. 2 (2026)
Publisher : Teknik Elektro, Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jse.v10i2.1619

Abstract

Gardu Induk Keramasan melayani sistem distribusi tenaga listrik dengan pola pembebanan yang bersifat fluktuatif setiap harinya. Fluktuasi beban tersebut berpotensi menimbulkan rugi-rugi daya pada transformator, yang selanjutnya menghasilkan panas dan dapat memengaruhi nilai efisiensi operasional transformator. Penelitian ini bertujuan untuk menganalisis pengaruh fluktuasi beban terhadap efisiensi transformator tenaga berkapasitas 60 MVA pada transformator 150/20 kV di Gardu Induk Keramasan. Metode penelitian yang digunakan meliputi identifikasi dan perumusan masalah, studi literatur dari berbagai sumber ilmiah dan laporan teknis, serta observasi langsung di lapangan untuk memperoleh data pembebanan harian, daya input, dan daya output transformator.Hasil analisis menunjukkan bahwa meskipun terjadi fluktuasi beban, pengaruhnya terhadap efisiensi transformator relatif kecil dan tidak signifikan. Nilai efisiensi tertinggi tercatat pada minggu ke-4 yaitu sebesar 98,59% dengan daya input 7828,77 kW, sedangkan nilai efisiensi terendah tercatat pada minggu ke-2 sebesar 98,46% dengan daya input 7198,74 kW, sehingga terjadi penurunan sebesar 0,14%. Rata-rata efisiensi transformator selama periode pengamatan adalah 98,56%. Jika diabdningkan dengan standar efisiensi transformator tenaga menurut SPLN 61:1997 yang ditetapkan oleh PLN, yaitu sebesar ≥ 98,6% pada kondisi beban nominal untuk transformator daya besar, mana nilai rata-rata hanya berbeda sedikit dibawah standar sebesar 0,04%. Secara umum kondisi operasional transformator 60 MVA di Gardu Induk Keramasan masih tergolong baik dan andal dalam mendukung sistem distribusi tenaga listrik.
Implementasi Model Predictive Control (MPC) pada sistem HVAC Skala Kecil untuk Optimasi Kinerja Termal dan Efisiensi Energi Fadilah Fadilah; Zulkiffli Saleh; Hafiidh Muzaki; Asri Indah Lestari; Yosi Apriani; Siti Sailah
Jurnal Surya Energy Vol. 10 No. 2 (2026)
Publisher : Teknik Elektro, Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jse.v10i2.1691

Abstract

Sistem Heating, Ventilation, dan Air Conditioning (HVAC) merupakan salah satu penyumbang konsumsi energi terbesar pada bangunan, sehingga diperlukan strategi kendali yang tidak hanya mampu menjaga kenyamanan termal tetapi juga meningkatkan efisiensi energi. Metode kendali konvensional PID memiliki keterbatasan dalam menangani kendala system dan perubahan kondisi lingkungan. Oleh karena itu, penelitian ini mengkaji implementasi Model Predictive Control (MPC) pada subsistem Air Conditioner (AC) pada HVAC skala kecil untuk mengoptimalkan kinerja termal dan konsumsi energi. Sistem HVAC dimodelkan sebagai sistem termal satu zona menggunakan pendekatan lumped parameter dan direpresentasikan dalam bentuk model state-space diskrit. MPC dirancang dengan fungsi objektif yang meminimalkan kesalahan pelacakan suhu terhadap setpoint dan perubahan daya pendinginan dengan memeprtimbangkan kendala operasional system. Pengujian dilakukan melalui simulasi menggunakan MATLAB dengan skenario pelacakan setpoint suhu dan gangguan lingkungan. Kinerja MPC dibandingkan dengan kendali PID konvensional berdasarkan respon suhu dan konsumsi energi. Hasil simulasi menunjukkan bahwa MPC mampu menghasilkan respons suhu yang stabil dengan konsumsi energi yang lebih rendah dibandingkan kendali PID. Secara kuantitatif, MPC membutuhkan energi sekitas 56,6 Wh, lebih rendah dibanding PID sebesar 58,5 Wh. Meskipun demikian, MPC memiliki waktu tunak yang sedikit lebih lama, yaitu sekitar 8 menit, dibandingkan dengan 6 menit pada kendali PID. Selain itu, MPC menghasilkan aksi kendali yang lebih halus, yang terlihat dari perubahan daya pendinginan yang lebih terkendali. Hasil ini menunjukkan bahwa MPC efektif sebagai alternatif kendali untuk meningkatkan kenyamanan termal dan efisiensi energi pada system HVAC skala kecil.
Analisis Efisiensi Energi Motor Induksi pada Horizontal Pumping System dengan Penggunaan Variable Speed Drive Ida Bagus Made Wisnu Wardana; M. Saleh Al Amin; Nita Nurdiana
Jurnal Surya Energy Vol. 11 No. 1 (2026)
Publisher : Teknik Elektro, Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jse.v11i1.993

Abstract

Induction motors are the primary drivers in various industrial systems; however, their high energy consumption poses a challenge to efficiency improvement efforts. One technology used to optimize energy consumption is the Variable Speed Drive (VSD), which allows motor speed to be adjusted according to load requirements. This study aims to analyze the effect of using a VSD on the energy efficiency of a three-phase induction motor in a horizontal pumping system for produced water injection. Field tests were conducted on a 185 kW induction motor controlled by a VSD with frequency variations of 45–47.5 Hz. Parameters measured included voltage, current, power factor, fluid pressure, flow rate, and hydraulic output power. System efficiency was calculated as the ratio between electrical input power and hydraulic output power. The results show that the use of a VSD reduced starting power from 923.07 kW to 65.06 kW and increased efficiency from 57.26% to 59.34%. In conclusion, the VSD not only improves energy efficiency but also reduces mechanical load, stabilizes operation, and extends equipment lifespan. The implementation of this technology is recommended for industrial pump systems with variable torque loads to support energy conservation.
Analisis Potensi Energi Biogas dari Limbah Sapi untuk Mendorong Transisi Energi Berkelanjutan Fathia Az Zahra; Nita Nurdiana; Emidiana Emidiana
Jurnal Surya Energy Vol. 11 No. 1 (2026)
Publisher : Teknik Elektro, Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jse.v11i1.1019

Abstract

The transition from fossil fuels to renewable energy is a strategic step in addressing the energy crisis and the impacts of climate change. This study aims to analyze the potential of cow dung waste as a source of biogas-based electricity at Duta Lembu Farm, South Sumatra. The research employed a quantitative approach through field observations, interviews, literature review, and theoretical calculations of biogas volume, electricity generation, greenhouse gas emission reduction, and economic benefits. The results show that 210 kg of cow dung per day can produce 6.3 m³ of biogas, equivalent to 6.77 kWh/day or 203.1 kWh/month. This energy is sufficient to supply electricity for approximately 13 households or power 90 LED lamps, while also reducing greenhouse gas emissions by 157.5 kg CO₂/day. Economically, the utilization of biogas can save electricity costs of about Rp293,276.4 per month with a payback period of around 20 months. Thus, biogas utilization from cow dung is proven to be technically, economically, and environmentally feasible as a sustainable renewable energy solution.
Analisis Cakupan dan Performansi NB-IoT 900 MHz dengan Skema Standalone di Yogyakarta Fitrah Sadli Fahreza; Melinda Br Ginting; Robin Sinurat; Ahmad Mutsaqif Abdul Haq; Widiarto Eko Bagus Saputro
Jurnal Surya Energy Vol. 11 No. 1 (2026)
Publisher : Teknik Elektro, Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jse.v11i1.1679

Abstract

The rapid development of the Internet of Things (IoT) has increased the demand for communication technologies that can provide wide coverage, low power consumption, and efficient spectrum utilization. One of the technologies developed to meet these requirements is Narrowband Internet of Things (NB-IoT), which is specifically designed to support low-data-rate IoT services with massive device connectivity. This study aims to design and analyze the performance of an NB-IoT network operating at 900 MHz using a standalone deployment scheme in the Yogyakarta region. The research method is carried out through network planning simulations using a link budget approach to estimate cell coverage, combined with the Okumura-Hatta Urban propagation model, which is suitable for urban environments. Network performance evaluation is conducted by analyzing key parameters, including Reference Signal Received Power (RSRP), Signal to Interference plus Noise Ratio (SINR), and downlink throughput. The simulation results show that the average RSRP value is −108.52 dBm, indicating relatively wide signal coverage. In addition, the average SINR value of 10.33 dB demonstrates good signal quality in the presence of interference and noise. Meanwhile, the average downlink throughput of 89.27 kbps indicates that the network is capable of efficiently supporting low-data-rate transmissions. Based on these results, it can be concluded that the standalone NB-IoT network design at 900 MHz in the Yogyakarta region is feasible for implementation. The network provides wide coverage, adequate signal quality, and performance suitable for supporting low-data-rate IoT applications, such as smart metering.
Studi Evaluasi Rewinding Motor Induksi Tiga Fasa 1,5 kW 3000 rpm dengan Parameter Tahanan Isolasi dan Arus Tanpa Beban Rayhan Shadiqi; Riza Widia; Wiwik Wiharti; Aldi Rahman; Akbar Abadi
Jurnal Surya Energy Vol. 11 No. 1 (2026)
Publisher : Teknik Elektro, Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jse.v11i1.1700

Abstract

Three-phase induction motors are widely used as electric drives in industrial sectors; therefore, their reliability and operational condition must be continuously maintained. One common repair method applied to induction motors experiencing winding damage is the rewinding process. This study presents an evaluation of the rewinding results of a three-phase induction motor rated at 1.5 kW with a nominal speed of 3000 rpm, conducted at the Electrical and Instrumentation Workshop Unit of PT. Semen Padang. The objective of this research is to assess the operational feasibility of the motor after rewinding by examining the conformity of electrical parameters, the quality of the insulation system, and the phase current balance. The research methodology includes collecting nameplate data as a reference, documenting stator windings, performing a visual evaluation of the stator condition, and conducting electrical tests comprising winding resistance measurement, insulation resistance (Rsi) testing, Polarization Index (PI) evaluation, and no-load current measurement. The test results indicate that the winding resistance values are balanced at 4.6 Ω for each phase, while the insulation resistance ranges from 1.80 to 3.31 GΩ with a Polarization Index value of 2.17. The no-load current test results show an average current of 1.29 A, corresponding to approximately 41% of the rated current specified on the nameplate, with a current unbalance of 2.3%. Based on these results, it can be concluded that the rewinding process was successfully performed and the induction motor meets the technical requirements and is suitable for re-operation.
Analisis Pengaruh Kontaminasi Debu Vulkanik Gunung Marapi terhadap Tahanan Isolasi Isolator Porselin: Studi Kasus Gardu Induk Padang Luar Yudia Meka Seftiani; Novizon Novizon; Ari Fitra Adhi
Jurnal Surya Energy Vol. 11 No. 1 (2026)
Publisher : Teknik Elektro, Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jse.v11i1.1789

Abstract

Porcelain insulators are essential components in electric power transmission and distribution systems, functioning to electrically isolate conductors while preventing leakage current. The performance of porcelain insulators can deteriorate due to environmental contamination, particularly volcanic ash in areas affected by the eruption of Mount Marapi. This study aims to analyze the effect of natural volcanic ash contamination on the insulation resistance of a 20 kV porcelain insulator under different moisture conditions. An experimental method was employed by measuring insulation resistance using an insulation tester with a 5 kV DC test voltage. The tests were conducted under four conditions: clean insulator, dry volcanic ash contamination, moist volcanic ash contamination (16 gr of volcanic ash with 5 mL of water), and wet volcanic ash contamination (16 gr of volcanic ash with 10 mL of water). Each condition was tested ten times, and the measurement results were analyzed using descriptive statistics, including the mean, standard deviation, and percentage reduction in insulation resistance. The results showed that the average insulation resistance decreased from 1010.6 MΩ under clean conditions to 885.7 MΩ under dry volcanic ash contamination, 567.6 MΩ under moist volcanic ash contamination, and 219.8 MΩ under wet volcanic ash contamination. Compared with the clean condition, the insulation resistance decreased by 12.36%, 43.83%, and 78.25%, respectively. The findings indicate a decreasing trend in insulation resistance as the moisture content of the volcanic ash increased. These results provide useful information for the inspection and maintenance of porcelain insulators in substations located in volcanic ash-prone areas.
Desain dan Uji Coba Prototipe Pengaturan Kualitas Air Untuk Budidaya Anakan Ikan Koi Hasanah Hasanah; Nina Paramitha; Endah Fitriani; Tamsir Ariyadi
Jurnal Surya Energy Vol. 11 No. 1 (2026)
Publisher : Teknik Elektro, Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jse.v11i1.1104

Abstract

Water quality is a fundamental aspect in koi fish farming because this species is highly susceptible to changes in environmental conditions, such as pH, temperature, turbidity levels, and solute concentrations. The mismatch of these parameters can inhibit growth, decrease immunity, and even increase the risk of fish death. Based on these problems, this research aims to design and develop a prototype of a microcontroller-based automatic water quality control system so that the condition of the pond remains in the optimal range. The research method is carried out through the design of integrated hardware and software. The system utilizes a pH sensor to measure the degree of acidity, a turbidity sensor to determine the turbidity of the water, a Total Dissolved Solids (TDS) sensor to detect the content of solutes, and a float level switch to monitor the height of the water level. Data from all sensors is processed by NodeMCU ESP8266 and sent to a web-based monitoring platform for real-time monitoring. If the parameters exceed the specified limits, the system automatically activates the pump, aerator, or filtration unit. The test results showed that the prototype was able to read parameters with a fast response and an adequate level of accuracy. Thus, this system can be concluded to be effective as a technological solution in supporting more efficient, controlled, and sustainable koi fish farming.

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