cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Bayu Fandidarma
Contact Email
bayuf@unipma.ac.id
Phone
+6285856297633
Journal Mail Official
electra@unipma.ac.id
Editorial Address
Jl. Auri 14-16 Kota Madiun Kampus III Universitas PGRI Madiun 63117
Location
Kota madiun,
Jawa timur
INDONESIA
ELECTRA : Electrical Engineering Articles
Published by Universitas PGRI Madiun
ISSN : 2745598X     EISSN : 27470539     DOI : http://doi.org/10.25273/electra
Core Subject : Science, Engineering,
Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering
Electrical Engineering Articles is scientific journal that publishes articles in the field of Electrical Engineering, Control System and Renewable Energy Application. It is a journal to encourage research publication to research scholars, academicians, professionals and student engaged in their respective field.
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 77 Documents
 4   5   6   7   8 
PENINGKATAN AKURASI PENGUKURAN DEBIT AIR LIMBAH DENGAN KONVERSI FLOWMETER DI PLTU Karuniallah Cahyono Putra, Muhammad Alif; Bayu Fandidarma; Ina Sunaryantiningsih
ELECTRA : Electrical Engineering Articles Vol. 6 No. 2 (2026)
Publisher : UNIVERSITAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/electra.v6i2.23058

Abstract

Pengukuran debit air limbah merupakan aspek krusial dalam operasional Pembangkit Listrik Tenaga Uap (PLTU) Paiton Unit 1 & 2 guna memastikan kepatuhan terhadap regulasi lingkungan serta menjaga efisiensi proses operasional. Penelitian ini bertujuan mengkaji konversi sistem pengukuran debit dengan mengganti flowmeter turbin menjadi flowmeter ultrasonik guna meningkatkan keandalan dan akurasi pengukuran. Penelitian dilakukan secara kuantitatif melalui pengumpulan data pembacaan flowmeter selama 1 bulan dengan interval 1 hari. Metode penelitian meliputi studi perbandingan antara flowmeter turbin dan flowmeter ultrasonik berdasarkan parameter akurasi, dan kemudahan pemeliharaan, serta analisis data debit air limbah sebelum dan sesudah implementasi. Hasil penelitian menunjukkan peningkatan signifikan dalam keandalan pengukuran dan kemudahan pemantauan secara real-time, serta penurunan risiko downtime akibat kerusakan alat. Temuan ini dapat menjadi dasar penerapan sistem serupa di unit pembangkit lainnya guna mendukung efisiensi operasional dan kepatuhan lingkungan.   Measuring wastewater flow is a crucial aspect of operating the Paiton Steam Power Plant Units 1 & 2, ensuring compliance with environmental regulations and maintaining the efficiency of operational processes. This research aims to examine the conversion of the flow measurement system by replacing the turbine flowmeter with an ultrasonic flowmeter in order to improve the reliability and accuracy of the measurement. The research was conducted quantitatively by collecting flowmeter readings for 1 month at 1-day intervals. The research methods included a comparative study between turbine flowmeters and ultrasonic flowmeters based on accuracy and ease of maintenance parameters, as well as an analysis of wastewater flow data before and after implementation. The research results show a significant increase in measurement reliability and ease of real-time monitoring, as well as a reduction in downtime risk due to equipment failure. This finding can serve as the basis for implementing similar systems in other power generation units to support operational efficiency and environmental compliance.
Analisis Optimasi Sistem Kendali Control Valve Pada Gland Seal Water CEP (Condensate Extraction Pump) Di PLTU Paiton Unit 1 & 2 Muhamad Nuralam; Ridam Dwi Laksono; Bayu Fandidarma
ELECTRA : Electrical Engineering Articles Vol. 6 No. 1 (2025)
Publisher : UNIVERSITAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/electra.v6i1.23059

Abstract

Abstrak Pembangkit Listrik Tenaga Uap (PLTU) Paiton Unit 1 & 2 memiliki peran penting dalam pemenuhan kebutuhan listrik nasional. Salah satu komponen kritis dalam sistem sirkulasi air-uap adalah Condensate Extraction Pump (CEP), yang didukung oleh sistem gland seal water untuk mencegah kebocoran pada celah antara shaft dan housing. Penelitian ini bertujuan untuk menganalisis keandalan sistem kendali tekanan gland seal water sebelum dan sesudah dimodifikasi menjadi sistem otomatis yang terintegrasi ke Distributed Control System (DCS). Modifikasi dilakukan dengan penambahan smart positioner dan pressure transmitter. Penelitian dilakukan dengan metode kuantitatif dengan pengumpulan data tekanan aktual selama 1 bulan berinterval 1 hari. Variabel yang dianalisis meliputi tekanan gland seal water, sinyal demand dari DCS, dan feedback dari aktuator. Analisis dilakukan melalui uji statistik independent-samples t-test. Hasil menunjukkan bahwa sistem kendali terintegrasi mampu menjaga tekanan lebih mendekati set-point 5,00 kg/cm² dengan nilai p-value 0,01 (< 0,05). Selain itu terjadi pengingkatan akurasi pengendalian sebesar 62,8% setelah sistem terintegrasi DCS. Hasil ini menunjukkan bahwa integrasi DCS mampu meningkatkan akurasi dan keandalan sistem pengendalian secara signifikan. Abstract The Paiton Unit 1 & 2 Steam Power Plant (PLTU) plays an important role in meeting national electricity needs. One of the critical components in the water-steam circulation system is the Condensate Extraction Pump (CEP), which is supported by a gland seal water system to prevent leaks in the gap between the shaft and housing. This study aims to analyze the reliability of the gland seal water pressure control system before and after it was modified into an automated system integrated into the Distributed Control System (DCS). The modification involved the addition of a smart positioner and pressure transmitter. The research was conducted using a quantitative method with data collection of actual pressure over a one-month period at one-day intervals. The variables analyzed included gland seal water pressure, demand signals from the DCS, and feedback from the actuator. The analysis was performed using an independent-samples t-test. The results showed that the integrated control system was able to maintain pressure closer to the set point of 5.00 kg/cm² with a p-value of 0.01 (< 0.05). In addition, there was a 62.8% increase in control accuracy after the system was integrated with the DCS. These results indicate that DCS integration can significantly improve the accuracy and reliability of the control system.
ANALISIS TAHANAN ISOLASI CURRENT TRANFORMATOR ULTG MADIUN Tegar Prakoso; Irna Tri Yuniahastuti; Bayu Fandidarma
ELECTRA : Electrical Engineering Articles Vol. 6 No. 2 (2026)
Publisher : UNIVERSITAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/electra.v6i2.23060

Abstract

Current Transformator (CT) merupakan komponen penting di gardu induk yang berfungsi mengukur arus dan mendukung sistem proteksi. Kinerja CT sangat dipengaruhi oleh kualitas isolasinya, yang dapat menurun karena faktor lingkungan seperti kelembaban, suhu, dan usia peralatan. Penelitian ini bertujuan untuk mengetahui kondisi tahanan isolasi CT 70 kV di Gardu Induk Magetan, Mranggen, dan Caruban. Pengujian dilakukan menggunakan alat Insulation Tester (Megger) dengan tegangan 5000 V untuk sisi primer dan 500 V untuk sisi sekunder. Hasil pengujian dianalisis menggunakan standar IEC 60044-1 dan VDE Catalogue 228/4 yang menetapkan batas minimal tahanan isolasi sebesar 70 M?. Hasil penelitian menunjukkan variasi nilai tahanan isolasi pada setiap gardu dan titik ukur. Nilai tertinggi terdapat di Gardu Induk Mranggen sebesar 1091 M? (primer-ground fasa S), sedangkan nilai terendah sebesar 57,8 M? (primer-sekunder 1 fasa S). Semua pengujian pada sisi sekunder menunjukkan nilai maksimum alat, yaitu 1 G?.
ANALISIS OPTIMASI DAYA PLTS ON GRID PADA KANTOR JASAMARGA NGAWI KERTOSONO Indra, Yuli Indra Setiawan; Sunaryantiningsih, Ina; Yuniahastuti, Irna Tri
ELECTRA : Electrical Engineering Articles Vol. 6 No. 1 (2025)
Publisher : UNIVERSITAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/electra.v6i1.23065

Abstract

Abstrak Peningkatan kebutuhan energi listrik menuntut diversifikasi sumber energi dengan memanfaatkan energi terbarukan. Energi surya dipilih karena potensi radiasi matahari di Indonesia, khususnya Jawa Timur, sangat tinggi sepanjang tahun. Penelitian ini bertujuan mengevaluasi kinerja Pembangkit Listrik Tenaga Surya (PLTS) on-grid di Kantor Jasa Marga Ngawi–Kertosono, Jawa Timur. Penelitian dilaksanakan September–Oktober 2024 dengan pendekatan kuantitatif deskriptif. Instrumen yang digunakan meliputi multimeter untuk mengukur tegangan dan arus, data logger untuk merekam daya serta kondisi lingkungan, dan perangkat lunak Microsoft Excel untuk pengolahan data. Data penelitian terdiri atas hasil pengukuran lapangan serta catatan historis daya harian PLTS. Analisis dilakukan melalui perhitungan statistik deskriptif, visualisasi data, perbandingan antara daya aktual dan teoretis, serta evaluasi indikator performa seperti daya puncak, efisiensi konversi, fill factor (FF), dan performance ratio (PR). Hasil menunjukkan energi harian berkisar 40,2–69 kWh dengan rata-rata 52,9 kWh, total produksi 3.232,2 kWh, daya puncak 9,3 kW, efisiensi inverter 98–100%, serta FF rata-rata 0,792. Nilai PR mencapai 95% pada September dan 98% pada Oktober, dengan rata-rata 96%. Temuan ini membuktikan bahwa sistem PLTS beroperasi stabil, efisien, dan layak dijadikan model penerapan energi terbarukan di sektor publik, sekaligus dasar strategi pengembangan energi berkelanjutan di Indonesia. Abstract The increasing demand for electricity requires diversification of energy sources through the utilization of renewable energy. Solar energy is considered highly potential in Indonesia, particularly in East Java, which has high solar radiation throughout the year. This study aims to evaluate the performance of an on-grid Solar Power Plant (PLTS) installed at the Jasa Marga Ngawi–Kertosono Office, East Java. The research was conducted from September to October 2024 using a descriptive quantitative approach. The instruments employed included a multimeter to measure voltage and current, a data logger to record power and environmental conditions, and Microsoft Excel software for data processing. The dataset consisted of primary field measurements and secondary data of daily historical power records. Analysis was carried out using descriptive statistics, data visualization, comparison between actual and theoretical power, and evaluation of key performance indicators such as peak power, conversion efficiency, fill factor (FF), and performance ratio (PR). The results showed daily energy production ranging from 40.2 to 69 kWh with an average of 52.9 kWh, total output of 3,232.2 kWh, peak power of 9.3 kW, inverter efficiency of 98–100%, and an average FF of 0.792. The PR reached 95% in September and 98% in October, with an average of 96%. These findings confirm that the PLTS system operates stably, efficiently, and can serve as a model for renewable energy implementation in the public sector, while providing a basis for strategies to optimize sustainable energy development in Indonesia.
ANALISIS PENURUNAN SUSUT NON-TEKNIS DENGAN METODE ANALISA LOAD PROFILE BERBASIS AMR PADA PELANGGAN POTENSIAL PT. PLN (PERSERO) ULP TALIWANG: ANALISIS PENURUNAN SUSUT NON-TEKNIS DENGAN METODE ANALISA LOAD PROFILE BERBASIS AMR PADA PELANGGAN POTENSIAL PT. PLN (PERSERO) ULP TALIWANG ISKANDAR, ARDIANSYAH DWI ADHA; BUDI PRAMONO JATI
ELECTRA : Electrical Engineering Articles Vol. 6 No. 2 (2026)
Publisher : UNIVERSITAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/electra.v6i2.23140

Abstract

budipramono@unissula.ac.id ABSTRACT Non-technical losses in electricity distribution pose a significant challenge to the operational efficiency and revenue of PT. PLN (Persero). This study aims to analyze the reduction of non-technical losses through the application of Automatic Meter Reading (AMR) technology, focusing on the load profile analysis of potential customers at PT. PLN ULP Taliwang. The research method includes field observation, energy consumption data collection via AMR, and customer consumption pattern analysis. The results indicate that AMR effectively detects consumption anomalies such as electricity theft and recording errors, significantly reducing non-technical losses by 50% to 80%. This technology also contributes to improved grid efficiency, operational cost savings, and increased company revenue. The study recommends broader implementation of AMR and customer education as optimal strategies to address non-technical losses. Keywords: Non-Technical Losses, AMR, Load Profile, PLN, Energy Efficiency
Desain Prototipe Sistem Keamanan Rumah Berbasis Internet Of Things dengan Integrasi Sensor Pintar Abidin, Zainal; Nugraha, Rizky Ananda; Santoso, Eko Wahyu
ELECTRA : Electrical Engineering Articles Vol. 6 No. 2 (2026)
Publisher : UNIVERSITAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/electra.v6i2.23300

Abstract

The rise in crime, especially theft, in residential areas demands a smarter and more efficient security system. This research designs a prototype Internet of Things (IoT)-based home security system with the integration of various smart sensors that can be controlled and monitored remotely. The ESP32-Wrover-CAM microcontroller is used as the control center, supported by an RC522 RFID sensor, an AM312 PIR sensor, a reed switch, an OV2640 camera, a buzzer, and a door lock solenoid. Test results show the system is capable of detecting motion, unlocking the door using an RFID card, and sending photos and real-time notifications via Telegram with an average response time of 0.86 seconds at an internet speed of 8.32 Mbps. The system successfully improves home security efficiently and can be controlled both ways (manually and online).
Analisis Susut Energi Penyulang Toba Menggunakan Metode Formula Jogja Wibowo, Robet Ari; Adhi Nugroho, Agus
ELECTRA : Electrical Engineering Articles Vol. 6 No. 2 (2026)
Publisher : UNIVERSITAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/electra.v6i2.23552

Abstract

Abstrak Jaringan distribusi merupakan komponen penting dalam sistem kelistrikan yang menyalurkan energi listrik dari pembangkit ke konsumen. Jika jaringan tidak beroperasi optimal, akan terjadi susut energi yang berdampak pada efisiensi dan kerugian biaya. Penelitian ini dilakukan untuk menganalisis besar susut energi dan penurunan tegangan pada Jaringan Tegangan Menengah (JTM) Penyulang Toba di PT PLN (Persero) ULP Anambas menggunakan metode Formula Jogja. Data dikumpulkan melalui pengamatan lapangan, pengukuran beban, data panjang jaringan, kapasitas konduktor, serta hasil pencatatan kWh produksi dan kWh jual. Analisis dilakukan untuk mengetahui besarnya rugi daya aktif, rugi daya reaktif, serta estimasi kerugian energi listrik dalam satuan rupiah. Hasil penelitian menunjukkan bahwa terjadi susut energi pada Penyulang Toba akibat karakteristik teknis jaringan, seperti resistansi penghantar dan ketidakseimbangan beban. Metode Formula Jogja terbukti efektif dalam menghitung dan mengevaluasi kehilangan energi pada jaringan distribusi. Kesimpulannya, susut energi dapat ditekan melalui peningkatan luas penampang konduktor, penyeimbangan beban, dan pemeliharaan sistem distribusi secara berkala. Kata kunci — Distribusi energi, Jaringan tegangan menengah, Penyulang Toba, Susut energi, Tegangan jatuh Abstract The distribution network is a crucial component of the electrical system that delivers electric power from the generation center to end consumers. When the network does not operate optimally, it results in energy losses that negatively impact efficiency and increase operational costs. This research aims to analyze the magnitude of energy losses and voltage drop in the Medium Voltage Network (JTM) of the Toba Feeder at PT PLN (Persero) ULP Anambas using the Jogja Formula method. Data were collected through field observation, load measurement, network length data, conductor capacity, as well as recorded kWh production and kWh sales. The analysis was conducted to determine active power loss, reactive power loss, and the estimation of unbilled energy losses in monetary value. The results show that energy losses occur in the Toba Feeder due to technical characteristics of the network, including conductor resistance and load imbalance. The Jogja Formula was proven to be effective in calculating and evaluating energy losses in the distribution network. In conclusion, energy losses can be minimized by increasing conductor cross-sectional area, balancing loads, and performing regular maintenance on the distribution system. Keywords — Distribution network, Energy loss, Medium voltage, Toba Feeder, Voltage drop

Page 8 of 8 | Total Record : 77

 4   5   6   7   8 

Filter by Year

2020 2026


Reset
Filter By Issues
All Issue Vol. 6 No. 2 (2026) Vol. 6 No. 1 (2025) Vol. 5 No. 2 (2025) Vol 5, No 1 (2024) Vol. 5 No. 1 (2024) Vol. 4 No. 2 (2024) Vol 4, No 1 (2023) Vol. 3 No. 2 (2023) Vol. 3 No. 1 (2022) Vol. 2 No. 2 (2022) Vol 2, No 1 (2021) Vol. 1 No. 2 (2021) Vol 1, No 1 (2020) More Issue