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Journal : Journal of Power, Energy, and Control

Performance Analysis of Over Current Relay on 20 kV Distribution Network Feeders Using MATLAB Hasibuan, Arlina; Daud, Muhammad; Putri, Raihan
Journal of Power, Energy, and Control Vol. 2 No. 2 (2025)
Publisher : MSD Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62777/pec.v2i2.57

Abstract

Short circuit disturbances in electrical distribution systems can cause severe damage to equipment and compromise system stability if not properly addressed. To mitigate these impacts and maintain system reliability, protection devices such as overcurrent relays (OCR) are widely used to detect and automatically isolate overcurrent conditions. This study aims to analyze the magnitude of short circuit current and evaluate the performance of OCR in responding to faults in a 20 kV medium-voltage distribution network. The analysis was conducted using MATLAB Simulink, modeling the distribution system with parameters adjusted to actual system conditions. The simulation was carried out under two scenarios: normal operating conditions to ensure the OCR remains inactive when the current is within safe limits, and fault conditions to evaluate the accuracy and speed of the OCR response to overcurrent events. Simulation results show that the magnitude of the short circuit current decreases with the distance from the source, with values of 5,565.92 A at 5% of the feeder length, 1,367.25 A at 25%, 698.52 A at 50%, 468.87 A at 75%, and 352.83 A at 100%. Under normal conditions, the current waveform remains stable throughout the 0.2-second simulation period. In contrast, under fault conditions, a current surge exceeding the threshold occurs at 0.1 seconds, triggering the OCR. The relay responds promptly and accurately in accordance with the designed inverse-time characteristics, demonstrating its effectiveness and reliability in detecting and clearing short circuit faults in 20 kV distribution networks.
Co-Authors Abdul Muthalib, Muchlis Abdullah, Ahmad Zaidi bin Adi Syahputra Ritonga Akbar, Farhan Akmal, Syarifah Al Fajri, Mirza Al-Ani, Waleed Khalid Ahmed Almuyasir, Almuyasir Andhika Jaya Putra Andik Bintoro Apridayanti, Rahayu Arnawan Hasibuan Askarov, Rafael Asran Asran Asran, A Asran, Asran Asri Asri Badriana, Badriana Daulay, Muhammad Arif Savinsada Dedi Fariadi Dheo Pratama Dina Fadhila Diras Elvi Idriana Elya Fitriyani Erawati, Henyy Ezwarsyah Ezwarsyah Ezzerouali, Souad Fachroji, Rizqan Fahmi Makraja Faisal Faisal Faisal Faisal Faisal Manurung Fakhruddin Ahmad Nasution Farabi, Sayed Muhammad Fatahillah, Fatahillah fatimah Fatimah Fitria Mardhatillah Fuadi, Wahyu Gery Ulayya Hardi Gunawan, Khairul Habib Muharry Yusdartono Hardi, Gery U. Hardi, Gery Ulayya Hasibuan, Arlina I Made Ari Nrartha Ikhsan, Khairul Isa, Muzamir Isra, Raihan Juliadi, Endri Kartika Kartika Kartika, K Khairun Nisa Khairun Nisa M Sayuti Maizuar, M Maryana Maryana Meriatna Meriatna Misbahul Jannah Misbahul Jannah Muammar Muammar Muammar Muammar, Muammar Muchlis Abdul Muthalib Muhammad Adib Alfarisi Muhammad Afdal Muhammad Daud Muhammad Daud muhammad ilham manishe Muhammad Luthfi Muhammad Muhammad Muhammad Reza Muhammad, M Mukhlis Mukhlis Mukhlis Mukhlis Muksalmina Muksalmina Nasution, Fakhruddin A Nisa Afifah Nratha, I Made Ari Nur Hidayat, Muhammad Nurdin Nurdin Nurfebruary, Nanda Sitti P Purwanto Putra, Gusti Randa Affinda Rahman, Irfan Fatur Ramji, D. R. Rian Rahmad Riswanda Rizkan Tiara Roasdiana, Rosdiana Robi Kurniawan Rosdiana Rosdiana Rosdiana Rosdiana Sadli, M. Saifannur Saifannur Saifuddin Muhammad Jalil Saifuddin Saifuddin Salahuddin Salahuddin Salahuddin Salahuddin Salahuddin, S Selamat Meliala Selly Nofrianti Setia Saputra, Nanda Shalahuddien, Ilham Akbar Siti Sonya Nadzilla Sulaiman Sulaiman Tajul Iflah Tasyukur Taufiq Taufiq Taufiq Taufiq Teuku Multazam Tunnur, Layla Tunnur Widyana Verawaty Siregar Yasir Amani Yulhana, Irma Zulfadli Zulfadli Zulnazri, Z Zuraida Zuraida