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Simulasi Modifikasi Konfigurasi Jaringan Spindel Menjadi Loop Tertutup Untuk Meningkatkan Keandalan Sistem Distribusi Menggunakan Software ETAP Eko Nio Rizki
Energi & Kelistrikan Vol 13 No 1 (2021): Energi dan Kelistrikan: Jurnal Ilmiah
Publisher : Sekolah Tinggi Teknik PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/energi.v13i1.1199

Abstract

Distribution reliability network rely on to any factor such as material quality, maintenance, operational pattern, protection device and also network configuration. In the spindle network the level of network reliability is level 3 (SPLN 52-3, 1983: 5). In order to leveling up the network reliability from level 3 to level 5 (zero down time)[2][3] we need to modify the protection system from overcurrent relay and ground fault relay to line differential relay in each distribution substation. Beside that Load Break Switch in each customer cubicle substation and in the connection substation should replaced by circuit breaker. Spindle network which operated open loop in the connection substation switch to normally close operated, so it can be called as closed loop network. This modification purpose is ther is no down time in case off ground fault or phase to phase sort circuit on the network cable. Before this kind of modification and the setting applied into real network, we make a simulation using an application called ETAP and no missmatch trip from 7 time experiment consist of ground fault and phase to phase short circuit in 7 cable
Simulasi Pencegahan Blackout Akibat Gangguan Hubung Singkat Di Luar Zona Proteksi Diferensial Pada Jaringan Distribusi Closed Loop Penyulang Kompetensi dan Potensial Eko Nio Rizki
Energi & Kelistrikan Vol 13 No 2 (2021): Energi dan Kelistrikan: Jurnal Ilmiah
Publisher : Sekolah Tinggi Teknik PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/energi.v13i2.1555

Abstract

One way to improve the reliability of the power distribution system is to design a good protection system, which is selective, sensitive, reliable, fast, and easy. Through the simulation in this study, the protection system that has been installed will be compared, namely a closed-loop system with differential relay protection with a protection system with additional logic at the relay output, focusing on busbar disturbances belonging to customers substations. The result is that the protection system that has been installed has a drawback, namely when there is a disturbance in the busbar of the customer's substation, the two feeder circuit breakers in the loop system will trip with the required clearance time of 765 milliseconds, while after adding logic to the relay output, when it occurs there is only one feeder circuit breaker that trips while another tripped circuit breaker is at the substation with the required clearance time of 524 milliseconds, so there is only one customer who experiences a blackout.
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