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All Journal Teknik: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer
Akmal Nurul Aziz
Universitas Siliwangi

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Evaluasi Ketidakseimbangan Beban R-S-T pada Instalasi Listrik Tiga Fasa Bengkel Teknik Mesin SMKN 2 Tasikmalaya Ifkar Usrah; Rizki Misbah Hidayat; Akmal Nurul Aziz
Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol. 6 No. 2 (2026): Juli : Jurnal Teknik Mesin, Elektro dan Ilmu Komputer
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/teknik.v6i2.11735

Abstract

Three-phase electrical installations in educational workshop buildings require balanced load distribution to maintain reliability, efficiency, and operational safety. This study aims to evaluate the R-S-T load imbalance in the three-phase electrical installation of the Mechanical Engineering Workshop at SMKN 2 Tasikmalaya. The research used a descriptive quantitative method based on field observation, load data recording, power factor measurement, and analysis of the single-line diagram. The analyzed loads consisted of TL lamps, LED lamps, and socket outlets connected to 19 distribution lines. The results show that the active power distribution was 4,800 W on phase R, 4,640 W on phase S, and 4,340 W on phase T. The active power imbalance reached 5.52%, while the current imbalance reached 5.97%. The main issue was the unequal distribution of single-phase loads among the three phases. Moving Line 19 from phase R to phase T reduced the active power imbalance to 1.60% and the current imbalance to 1.01%. These findings imply that simple load redistribution can improve the technical condition of low-voltage three-phase installations.
Co-Authors Ifkar Usrah Rizki Misbah Hidayat