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All Journal Wahana : Tridarma Perguruan Tinggi
Muhammad Al Ahyudi
Universitas 17 Agustus 1945 Surabaya, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Education Engineering Languange, Linguistic, Communication & Media

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Coordination Analysis of Overcurrent Relays (OCR) and Directional Ground Relays (DGR) for Transformer Protection at Segoromadu Substation, Gresik Puji Slamet; Reza Sarwo Widagdo; Aris Heri Andriawan; Muhammad Al Ahyudi
Wahana Vol 76 No 2 (2024): Wahana Tridarma Perguruan Tinggi
Publisher : LPPM Universitas PGRI Adi Buana Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/wahana.v76i2.9805

Abstract

Transformers are vital components in the distribution of electrical energy that are susceptible to overcurrent and short circuit disturbances, especially in substations. In this study, an analysis of the coordination of Over Current Relay (OCR) and Directional Ground Relay (DGR) was conducted to protect transformers in the Segoromadu Substation, Gresik. This analysis aims to determine the optimal settings of OCR and DGR, as well as to test the reliability of protection rather than safety equipment. Measurements were made by calculating the short circuit current of three phases, two phases, and one phase to ground, as well as the relay time settings. The simulation results show that the right settings on OCR and DGR can improve the reliability and safety of the substation protection system in maintaining a stable energy supply. These findings provide an important contribution in improving the performance of the protection system and can be a reference for the development of protection systems in other substations.
Co-Authors Aris Heri Andriawan Puji Slamet Reza Sarwo Widagdo