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All Journal JTEV (Jurnal Teknik Elektro dan Vokasional Jurnal Informatika dan Teknik Elektro Terapan ITEj (Information Technology Engineering Journals) JOURNAL OF ELECTRICAL AND SYSTEM CONTROL ENGINEERING JAUR (Journal of Architecture and Urbanism Research) RELE: Rekayasa Elektrikal dan Energi Jurnal Teknik Elektro INTECOMS: Journal of Information Technology and Computer Science Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Abdi Ilmu Jurnal Elektro dan Telkomunikasi Journal of Applied Engineering and Technological Science (JAETS) E-Link: Jurnal Teknik Elektro dan Informatika INFOKUM Journal of Computer Science, Information Technology and Telecommunication Engineering (JCoSITTE) Jurnal Scientia Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Jurnal Info Sains : Informatika dan Sains Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) Jurnal Rekayasa Elektro Sriwijaya Prosiding Konferensi Nasional PKM-CSR International Journal of Research in Vocational Studies (IJRVOCAS) COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat Jurnal Derma Pengabdian Dosen Perguruan Tinggi (Jurnal DEPUTI) JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Jurnal Nasional Teknologi Komputer Jurnal Media Computer Science Prosiding Seminar Nasional Teknik UISU (SEMNASTEK) International Journal of Economic, Technology and Social Sciences (Injects) Jurnal Teknik Elektro dan Komputer Power Elektronik : Jurnal Orang Elektro Journal of Telecommunication and Electrical Scientific Asian Journal of Environmental Research Journal of Scientific Insights Journal of Electrical Engineering Research
Zuraidah Tharo
Univeristas Pembangunan Panca Budi
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Smart Energy Coordination Platform for Rural Public Facilities: Multi-Facility Load Optimization and Smart Control System Niar, Rahma; Tharo, Zuraidah; Rahmadani, Nur Fadilah
ITEJ (Information Technology Engineering Journals) Vol 10 No 2 (2025): December
Publisher : Pusat Teknologi Informasi dan Pangkalan Data IAIN Syekh Nurjati Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24235/itej.v10i2.280

Abstract

Rural public facilities in Indonesia face significant energy efficiency challenges due to inadequate management systems, aging infrastructure, and limited technical capacity. This study develops a smart energy coordination platform integrating IoT sensors and wireless communication networks for five public facilities in Petumbukan Village, North Sumatra. Six-month continuous monitoring using power quality analyzers and IoT data loggers revealed 310.7 kWh/day total consumption with 0.43 load factor, 40.7 kW peak demand, and 1.27 diversity factor across facilities. Comprehensive energy audit identified 17.7 kW total losses (43.5% of peak load), with lighting inefficiency representing the primary concern at 8.5 kW (20.9% of system load). The proposed four-layer IoT architecture implements smart meters, environmental sensors, LoRaWAN communication, and edge computing devices for real-time monitoring and automated control. Multi-facility coordination algorithms leverage load diversity to achieve 22% annual energy savings (56,327 kWh) through optimized scheduling and demand management. System performance demonstrates 15% peak demand reduction, load factor improvement from 0.43 to 0.52, and sub-5-minute response times for automated load adjustments. The platform provides a technically feasible and replicable framework for rural electrification optimization in developing countries, addressing the gap between urban-focused smart grid solutions and rural infrastructure constraints.
ENERGY EFFICIENCY IMPROVEMENT IN AIR CONDITIONERS AFTER REPAIR AND MAINTENANCE PROCESS Zuraidah Tharo; Rahmaniar; Trio Putra Agung Wijaya; Feri Karyanta Bangun; Budi Hartono
Multidiciplinary Output Research For Actual and International Issue (MORFAI) Vol. 6 No. 1 (2026): Multidiciplinary Output Research For Actual and International Issue
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.18501748

Abstract

This study aims to analyze the improvement in energy efficiency of air conditioning (AC) systems after repairs and routine maintenance. The use of unmaintained AC units leads to an increase in energy consumption, which results in higher operational costs. This research measures the changes in electrical power consumption and cooling capacity at two locations: the village office and a residential house. The results show a 25% reduction in power consumption at both locations after the repairs were made, as well as an 8.6% improvement in cooling capacity at the village office and a 13.6% improvement at the residential house. The study also identifies factors that affect energy efficiency, such as refrigerant leaks and component cleanliness. The findings of this study are expected to provide insights into the importance of maintenance and repairs for AC systems to enhance energy efficiency
Analysis of Power Quality in Technology Based Power Systems Tharo, Zuraidah; Wibowo, Pristisal; Syahputra, Mhd Rizki
Journal of Electrical Engineering Research Vol. 2 No. 1 (2026): Januari 2026
Publisher : CV. Raskha Media Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64803/joeer.v2i1.23

Abstract

The rapid advancement of power system technologies has significantly transformed the way electrical power quality (PQ) is monitored, managed, and improved. The increasing penetration of non-linear loads, automation systems, and renewable energy sources has intensified power quality challenges, including harmonic distortion, voltage sags, voltage fluctuations, and transient disturbances. This study aims to analyze the impact of modern technological approaches on power quality enhancement in contemporary power systems. A descriptive-analytical research methodology was employed through a systematic review of recent scientific literature, international standards, and technical reports related to power quality management. The collected data were analyzed using qualitative content analysis and comparative evaluation to assess the effectiveness of automation, machine learning, Internet of Things (IoT)-based monitoring systems, and power electronic mitigation devices. The results indicate that integrated technological solutions significantly improve power quality performance compared to conventional approaches. Machine learning techniques, particularly Artificial Neural Networks, demonstrate high accuracy in disturbance classification and adaptive control, while IoT-based systems enable real-time monitoring and rapid response to power quality deviations. Furthermore, power electronic devices such as Active Power Filters, Static Var Compensators, and Dynamic Voltage Restorers effectively mitigate harmonics and stabilize voltage. However, challenges related to implementation cost, system complexity, cybersecurity, and regulatory inconsistency remain. The study concludes that an integrated, intelligent, and data-driven framework is essential for sustainable power quality management in modern power systems.
MEKANISME PERENCANAAN PLTS OFF-GRID UNTUK DAYA 1300VA PADA RUMAH TINGGAL Romi Masmur Pasaribu; Zuraidah Tharo
E-Link: Jurnal Teknik Elektro dan Informatika Vol. 18 No. 2: Oktober 2023
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30587/e-link.v18i2.6129

Abstract

Pemasangan Pembangkit Listrik Tenaga Surya (PLTS) pada rumah tinggal dengan pasokan PLN 1300 VA membuka potensi besar bagi penggunaan energi baru dan terbarukan (EBT) di masa depan. Penelitian ini mengungkapkan hasil analisis sistem PLTS sebagai sumber tambahan listrik untuk rumah dengan rata-rata konsumsi harian sekitar 10,816 kWh. Sistem PLTS yang diterapkan merupakan tipe off-grid, dengan komponen utama terdiri dari panel surya 500 Wp, inverter 2000 W, dan baterai Lithium-ion 24 V 100 Ah. Sebelum adanya PLTS, penggunaan listrik dari pasokan PLN mencapai 249 kWh dengan biaya sekitar Rp. 359.730 per bulan, berdasarkan tarif Rp. 1.444,70/kWh. Namun, setelah pemasangan PLTS, penggunaan listrik turun menjadi 163,5 kWh dengan estimasi biaya sekitar Rp. 237.000 per bulan, dengan asumsi tarif Rp. 1.444,70/kWh. Dengan kehadiran PLTS, terlihat penurunan yang signifikan dalam tagihan listrik yang harus dibayar setiap bulan.
PERENCANAAN MEP (MECHANICAL, ELECTRICAL DAN PLUMBING) PADA BANGUNAN CAGAR BUDAYA WARENHUIS DI MEDAN Naufal Aushaf Hadi; Zuraidah Tharo; Siti Anisah
E-Link: Jurnal Teknik Elektro dan Informatika Vol. 18 No. 2: Oktober 2023
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30587/e-link.v18i2.6138

Abstract

Gedung Warenhuis dibangun pada 1919, merupakan gedung toko serba ada pertama di Sumatera dan terbesar di Hindia Belanda. Namun, keadaan gedung saat ini rusak berat secara keseluruhan. Berdsarkan SK No 433/28.K/X/2021 Tahun 2021 tentang bangunan, situs, kawasan dan struktur cagar budaya kota, menjadikan Gedung Warenhuis menjadi salah satu objek cagar budaya dari 93 objek yang ada. Dengan demikian dilakukanlah kajian yang bertujuan agar dapat menjadi panduan konservasi yang sesuai dengan kaidah dan aturan yang berlaku di Indonesia dan Kota Medan. Dalam upaya revitalisasi gedung, perencanaan MEP sangat dibutuhkan dengan tujuan agar bangunan ini dapat berfungsi sebagaimana mestinya. Berdasarkan hasil data yang ada, gedung warenhuis memiliki luas 3779.24m2 dengan konsumsi daya listrik 200.95 KW dan kebutuhan air 32.58m3.
Analysis of Transformer Dielectric Quality at the Kisaran Main Substation of PT. PLN (Persero) ULTG Kisaran Rizinski Khaliksi; Parlin Siagian; Zuraidah Tharo
Jurnal Media Computer Science Vol 5 No 2 (2026): April
Publisher : LPPJPHKI Universitas Dehasen Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37676/jmcs.v5i2.10989

Abstract

This study presents a comprehensive analysis of the dielectric quality of a 60 MVA power transformer at the Kisaran 150kV Substation, North Sumatra, Indonesia. The transformer, manufactured by PAUWELS TRAFO and operated since 2011, operates at an average load of 33% with an ONAN/ONAF cooling system. Dielectric testing yielded a breakdown voltage of 80.2 kV, a moisture content of 17.62 mg/kg, an acid number of 0.108 mgKOH/g, and dissipation factors of 0.173% (primary), 0.190% (secondary), and 0.243% (tertiary). The bushing dissipation factor ranged from 0.247% to 0.271%. The interfacial tension measured 26.8 mN/m with a flash point at 148°C. Insulation resistance testing showed values of 4.9 GΩ (primary), 3.41 GΩ (secondary), and 3.40 GΩ (tertiary) with polarization indices of 3.06, 1.48, and 1.47, respectively. Operating temperatures remained within acceptable limits at 63°C (peak oil) and 62°C (winding). Analysis based on IEC 60422:2013 and PLN standards indicated that the transformer was in good operational condition with all parameters within acceptable ranges, although the interface voltage was close to the warning threshold. This study provides valuable baseline data for predictive maintenance strategies and demonstrates the importance of integrated dielectric testing for transformer health assessment.
Transformer Life Prediction Analysis Based on Thermal Aging at PT Ultra Sumatera Dairy Farm Wageman A. Naiborhu; Haris Gunawan; Zuraidah Tharo
Jurnal Info Sains : Informatika dan Sains Vol. 16 No. 02 (2026): Info sains, 2026
Publisher : SEAN Institute

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

Abstract

A transformer is a vital component in the electrical power distribution system that functions to transfer energy from medium voltage to low voltage. The reliability of a transformer is highly influenced by the thermal condition of its insulation, which determines its service life. This study aims to predict the effective lifespan of a 1250 kVA distribution transformer at PT. Ultra Sumatra Dairy Farm uses the thermal aging method based on the IEEE C57.91-2011 standard. The data used includes nameplate information, daily load profiles, and average ambient temperature. Based on the measurements, the transformer operates at an average load of 422.7 kVA (33.8% of its rated capacity) and an ambient temperature of 23°C. The calculated results show a hottest-spot temperature of 49.55°C with an aging acceleration factor (FAA) of 0.000649. The daily Loss of Life (LOL) value of 0.00000865% indicates that thermal aging occurs very slowly. Based on the Equivalent Aging Factor (FEQA), the theoretical effective lifespan of the transformer reaches approximately 31,660 years. However, in practice, the actual lifespan of the transformer is estimated to range between 25–35 years due to non-thermal factors such as moisture, oil oxidation, and load fluctuations. These results indicate that the thermal condition of the transformer remains very safe and efficient for long-term operation.
Co-Authors AA Sudharmawan, AA Abendanon Siagian ACHMAD FAUZI Adi Sastra P Tarigan Ahmad Faisal Akbar Wirayuda Alfauzan, Alfauzan Amani Darma Tarigan Amani Darma Tarigan Amani Darma Tarigan Amani Darma Tarigan Andrawadi, Candra Andriana, Melly Angga Maulana Anjani, Bella Arnanda Putra Arnita , Vina Asrul Andi Bambang Nurdiyansyah Bambang Sugino Barus , Dwi Permatasari Barus, Michael J.T. Bawamenewi, Helpianus Brid, Dwiki Darma Nuriono budi hartono Dalimunthe, Erpandi Dalimunthe, Muhammad Erpandi David Siringoringo Deni Firmansyah Dicky Lesmana Dikcy Lesmana Dimas Nanda Ikhsan Dwi Permatasari Barus Eddy Sutejo Eddy Sutejo, Eddy Eka Rahma Daniati Eka Umi Kalsum Erwin Syahputra Erwin Syahputra Syahputra Fajar Ahmad Farizal, Muhammad Fatur Rahman fatur Rahman, fatur Feri Karyanta Bangun God Friend Pastian Lase Gultom , Jones Hamdani Hamdani . Hamdani Hamdani Hamdani Hamdani Hamdani Hamdani Hamdani Hamdani Harahap, Yusrizal Pahlevi Haris Gunawan Haris Gunawan Hidayat Yusar, Jumantri Irham Amando Lubis Irwan Roganda Malau Jones Gultom Josua Delpiero Sinaga Kevin Tri Yuda Khoiri, Muhammad Lamsyah Abdil Hafiz Lesmana, Dicky Loi, Roberto Yusuf M Rizki Liano M. Samsul Hidayat Mei Winda Siagian Melly Andriana Melly Andriana Mhd Idris Muhammad Angga Dwi Andika Muhammad Erpandi Dalimunthe Muhammad Erpandi Dalimunthe Muhammad Fahreza Muhammad Fahreza Muhammad Rizki Syahputra Muhammad Rizki Syahputra Naufal Aushaf Hadi niar, rahma Nimas Deria Wijayanti Notatema Waruwu Novalinda Pane, Samuel Parlin Siagian Pasaribu, Waldi Prabowo Prabowo, Deni Pradito, Ferdy Haykal Pristisal Wibowo Purba, Alexius Purba, Johans Luther Putra Andhika Putra, Fariz Aditya Putra, Hadi Wiranata Rahmad Mulyadi Rahmadani, Nur Fadilah Rahmadhani Fitri Rahmadsyah Pulungan Rahmaniar Rahmaniar Rahmaniar Rahmaniar Rahmaniar, Rahmaniar Raihan Nurharfi Ramadhan, Roby Ramayana Bachtiar Ramayana Ramayana Ramayana Ramayana Ranses Wahyudi Sijabat Ridho, M. Ridwan, Wahyu Rikky Yaldi Girsang Riski, Alwi Rizinski Khaliksi Rizky, M. Ariansyah Robby Wardani Roberto Yusuf Loi Romi Masmur Pasaribu Roy Leo Rensius Hutauruk Ruth Chyntia Rouli Marpaung Sembiring, Regi Jesaya Septiany, Anggie Sianipar, Tigor Pangihutan Sihombing, Charles Ricardo Sihombing, Febrian Simbolon, Banglas Simbolon, Joniko Siregar, Arif Zulfahri Siregar, Israma Dani Siregar, Maimunah Siregar, Maimunah Siti Anisah Siti Anisah Siti Anisah Siti Anisah Siti Anisah Siti Anisah Siti Anisah Siti Anisah Siti Anisah SK, Gavana Mustaqim Slamet Budi Arto Situmeang Solin, Yunus Satria Solly Aryza Suhardi Suhardi Syafitri, Auna Syafruddin H.S. Syahputra, Mhd Rizki Syahrobi, Syahrobi Syawal Sihite Tanzil Al Malik Taqwim, Ahsani Trio Putra Agung Wijaya Umi Kalsum, Eka Vina Arnita Vinda Sri Mulyani H Wageman A. Naiborhu Wibowo , Pristisal Wibowo, Pristisal Yan Bastian Lumbantobing Zulkarnain Zulkarnain Lubis