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All Journal International Journal of Electrical and Computer Engineering International Journal of Applied Power Engineering (IJAPE) Singuda ENSIKOM Bulletin of Electrical Engineering and Informatics Teknika: Jurnal Sains dan Teknologi ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Science and Technology Indonesia Jurnal Teknika Jurnal Media Elektro : Journal of Electrical Power, Informatics, Telecommunication, Electronics, Computer and Control System Indonesian Journal of Electrical Engineering and Computer Science
Yulianta Siregar
Jurusan Teknik Elektro, Fakultas Teknik, Universitas Sumatera Utara
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics

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Journal : Bulletin of Electrical Engineering and Informatics

 1 
Distribution network reconfiguration utilizing the particle swarm optimization algorithm and exhaustive search methods Siregar, Yulianta; Jaya Tambun, Tomi Saputra; Panjaitan, Sihar Parlinggoman; Tanjung, Kasmir; Yana, Syiska
Bulletin of Electrical Engineering and Informatics Vol 13, No 2: April 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v13i2.6206

Abstract

The load level for each period in the distribution network can be considered non-identical due to the increasing demand for loads and the bigger distribution network. The main problem in the transmission and distribution network system is power losses and voltage profiles, affecting the quality of service and operating costs. This study compares the reconfiguration of the network using exhaustive search techniques and particle swarm optimization (PSO) algorithms on the IEEE 33 bus distribution network system. The study’s results compare the study of power flow before and after network reconfiguration, which is a decrease in the value of power losses from 202.7 kW to 139.6 kW. Then voltage profile improved from 91.309% to 93.782%. The simulation results also found that this reconfiguration can improve the system voltage profile, which initially contained 21 buses outside the standard limits of IEEE Std 1159-1995 to 7 buses.
Overcurrent effects on copper insulated PVC cables and fire resistance via thermal imaging and macrostructure analysis Ali Akbar, Muhammad; Humaidi, Syahrul; Tarigan, Kerista; Ramdan, Dadan; Frida, Erna; Siregar, Yulianta
Bulletin of Electrical Engineering and Informatics Vol 14, No 2: April 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v14i2.8628

Abstract

This study investigates the effects of overcurrent on copper (Cu) insulated polyvinyl chloride (PVC) cables, focusing on their thermal behavior and fire resistance. We utilized thermal imaging, macrostructural analysis, and Joule heating calculations to evaluate six cable samples subjected to various currents. Results showed that with increasing current, the temperature of the cables rose significantly. For example, the CC0 sample, with no current, had a temperature of 36 °C, while the CC110 sample, subjected to 110 A, reached 1,091 °C. Joule heating calculations indicated energy values ranging from 0 J for the CC0 sample to 7,260,000 J for the CC110 sample. Physical observations included minor deformations at 253 °C and complete insulation loss at 1,091 °C. These findings emphasize the critical need for managing overcurrent to prevent severe cable damage and enhance system safety. This research provides practical insights for optimizing cable design and improving thermal management, offering valuable contributions to electrical engineering practices.
Co-Authors . Afron, . . Syahrawardi, . . Yehzekiel, . Afron Afron Aliakbar, Muhammad Azhari Nasution, Azrial Aziz Azhari, Naomi Candra Riawan, Dedet Dadan Ramdan Debataraja, Bio Erna Frida Hasdari Helmi Hasdari Helmi, Hasdari Jaya Tambun, Tomi Saputra Kasmir Tanjung, Kasmir Mai Kai Suan Tial Mohamed, Nur Nabila Mubarok, Syahrun Muhammad Ali Akbar, Muhammad Ali Muhammad, Maulaya Muldi Yuhendri Nabila Binti Mohamed, Nur Naemah Mubarakah Naemah Mubarakah PAMBUDI, YOGA WAHYU Ribet Michael Simorangkir Riswan Dinzi Riswan Dinzi Rotua Oktaviana Siahaan, Yosephine Sihar Parlinggoman Panjaitan Sihotang, Wahyu Franciscus Siregar, Melinda Zubara Situmeang, Farel Soeharwinto Soeharwinto Soeharwinto Soeharwinto, Soeharwinto Suan Tial, Mai Kai Suherman Suherman Syahrawardi Syahrawardi Syahrul Humaidi, Syahrul Syiska Yana Tarigan, Kerista Timothy Juan Hartanto Lumbanraja Wiwanto Tjumar Yanuar Zulardiansyah Arief Yasunori Tanaka Yehezkiel Yehezkiel Yopi Fernando Soarez Purba Zulkarnaen Pane