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Study on the Use of CT Ring Protection as Back Up Protection For Overcurrent Disruptions in PLN Distribution Network System
Abstract
Protection is a safeguard in the electric power system installed in the electric power distribution system, power transformers, electric power transmission, and electric generators used to protect the electric power system from electrical disturbances or overloads by separating the disturbed part of the electric power system from the existing electric power system. Not disturbed so that the uninterrupted electrical system can continue to work. Failure of the protection system at the KG02 and KG 180 substations at PT PLN (Persero) UP3 Tanjung Priok when short circuit currents occurred on the phases on the consumer side resulted in the PMT (Power Breaker) of the feeder tripping. This resulted in widespread outages which had a negative impact on the image of PT PLN (Persero) UP3 Tanjung regarding network reliability. To find out the cause of the protection system failure, CT (Current Transformer) checks were carried out on the three substations. At the KG02 substation, the 345KVA CT power contract is installed with a ratio of 10/5 and class 5P10 with a fault current of 2861A. At the KG180 substation, the CT is installed with a ratio of 100/5 with class 5P10 with a fault current of 6547A. From the results of the data from the two substations above, the protection system failure occurred in the current transformer which was saturated when a fault current exceeded 2861A and 6547A. To overcome protection failures at the two substations above, it is necessary to add a CT Ring 800/5 with class 5P20, with the test results being a reference for improving the protection system so that similar failures do not happen again.
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A. I. K. F. Azis, “Analisis Sistem Proteksi Arus Lebih Pada Penyulang Cendana Gardu Induk Bungaran Palembang,” vol. 4, no. 2, pp. 332–344, 2019.
Bedekar, P P., et al. (2009). Optimum Time Coordination of Overcurrent Relays in Distribution System Using Big-M (Penalty) Method. Visvesvaraya National Institue of Technology Nagpur (Maharashtra).
Birjandi, A A M, Pourfakkah M. (2011). Optimal Coordination of Overcurrent and Distance Relays by a New Particle Swarm Optimization Method. International Journal of Engineering and Advanced Technology (IJEAT), Vol 1.
Doloksaribu, P. (2010). Analisa Keandalan Sistem Distribusi Tenaga Listrik. Jurnal Teknik Elektro Univ. Cendrawasih, 1(1), 20-25.
Dulhadi, Suwarti Widyastuti, D., & Budhi Frebrianto, I. (2021). Pengaruh Sistem Pentanahan Gardu Distribusi Terhadap Tegangan Sentuh. Kurvatek, 6(1), 81-92. https://doi.org/10.33579/krvtk.v6i1.1797
E. Dermawan and D. Nugroho, “Analisa Koordinasi Over Current Relay Dan Ground Fault Relay Di Sistem Proteksi Feeder Gardu Induk 20 kV Jababeka,” Elektum J. Tek. Elektro, vol. 14, no. 2, pp. 43–48, 2017.
Guo, M. F., Gao, J. H., Shao, X., & Chen, D. Y. (2020). Location of single-line-to-ground fault using 1-D convolutional neural network and waveform concatenation in resonant grounding distribution systems. IEEE Transactions on Instrumentation and Measurement, 70, 1-9.
I. D. G. A. B. I. G. D. A. T. G. I. P. Udiana, “Studi Analisis Koordinasi Over Current Relay (OCR) dan Ground Fault Relay (GFR) pada Recloser di Saluran Penyulang Penebel,” vol. 14, no. 1, 2015
M. Abdan Syakur, “Studi Setting Relay Proteksi Over Current Relay Dan Ground Fault Relay Sisi Incoming Dan Outgoing Pada Disusun Oleh : Muhammad Abdan Syakur Program Studi Sarjana Teknik Elektro Fakultas Ketenagalistrikan Dan Energi Terbarukan Institut Teknologi –,” 2020.
Mardensyah, A. (2008). Studi Perencanaan Koordinasi Rele Proteksi Pada Saluran Udara Tegangan Tinggi Gardu Induk Gambir Lama-Pulomas. Universitas Indonesia, Depok.
Perdana, W. P., Hasanah, R. N., & Dachlan, H. S. (2009). Evaluasi keandalan sistem tenaga listrik pada jaringan distribusi primer tipe radial gardu induk Blimbing. Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 3(1), 6-12.
PT. PLN Persero PDM/PGI/02:2014, “Buku Pedoman Pemeliharaantrafo Arus (CT)”
R. D. PANGESTU, “Analisis Koordinasi Rele Arus Lebih Dan Rele Gangguan Tanah Pada Penyulang Dewi Sartika Di Gardu Induk Prabumulih,” Int. J. Hypertens., vol. 1, no. 1, pp.
Subianto, “Studi Sistem Proteksi Rele Diferensial Pada Transformator Pt. Pln (Persero) Keramasan Palembang,” pp. 32–41, 2015.
Tasiam, F. J. (2017). Proteksi sistem tenaga listrik.
Triandini, T Y R. (2015). Analisa Sistem Proteksi Relay (Overcurrent dan Ground Fault) Dengan Menggunakan Kurva Koordinasi Relay dan Software ETAP 7.5 Pada Plant Unit 5 PT. Krakatau Posco. Universitas Mercubuana. Jakarta.
Turan Gonen. (1986). Electrical Distribution System Engineering. Mc-Graw-Hill International State of America.
Uma, U U, Onwuka, I K. (2014). Overcurrent Relay Setting Model for Effective Substation Relay Coordination. IOSR Jounal of Engineering (IOSRJEN). Vol 04.
W. Sarimun, Proteksi Sistem Distribusi Tenaga Listrik. 2016.
Yusmiharga, D S. (2012). Perencanaan Koordinasi rele Pengaman Pada Sistem Kelistrikan di PT. Wilmar Gresik Akibat Penambahan Daya. Institut Teknologi Sepuluh Nopember. Surabaya.
DOI: https://doi.org/10.33258/birex.v6i1.7810
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