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All Journal Jurnal Surya Teknika
Pratama, Yogi Edi
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Evaluasi Sistem Pentanahan Kubikel 20 kV Berdasarkan Standar PUIL 2020 dan IEEE Std 80-2013 Pratama, Yogi Edi; Putra, Dian Eka; Yani, Raden Ahmad
SURYA TEKNIKA Vol 13 No 1 (2026): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v13i1.11941

Abstract

The grounding system for the 20 kV switchgear at the Bukit Asam Tanjung Enim town site housing complex (capacity 591,147 kW) plays a crucial role in protecting equipment and personnel from overcurrent faults and touch voltage. This study aims to evaluate the existing conditions, compliance with the PUIL 2020 and IEEE Std 80-2013 standards, factors affecting resistance, and recommendations for improvements. Methods included direct measurements using an ETCR 2100A+ clamp meter, theoretical calculations using the Dwight formula (ρ = 30–35 Ωm), and a comparative analysis of pre- and post-maintenance conditions. The results show that the resistance after maintenance was 0.17–0.91 Ω (average 0.42 Ω), down from 0.91 Ω before maintenance. Theoretical calculations yielded 4.77 Ω (ρ = 30 Ωm). All values were below the maximum limit of 5 Ω, so the system was deemed serviceable and safe. Factors affecting resistance include the condition of the connections, corrosion, soil moisture, and soil resistivity. Routine maintenance proved effective in significantly reducing resistance.
Co-Authors Putra, Dian Eka Yani, Raden Ahmad