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All Journal JURNAL KAJIAN TEKNIK ELEKTRO
Rangga Bismantara
Universitas Islam Sultan Agung Semarang
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering

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PENGALIHAN BEBAN OTOMATIS UNTUK TRAFO YANG TIDAK SEIMBANG BERBASIS LOGIKA FUZZY MAMDANY Rangga Bismantara; Arief Marwanto
Jurnal Kajian Teknik Elektro Vol 11, No 1 (2026): JKTE VOL 11 NO 1 (MARET 2026)
Publisher : Universitas 17 Agustus 1945 Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52447/jkte.v11i1.8475

Abstract

Load imbalance in a three-phase distribution transformer can lead to increased neutral current and power losses, which negatively affect the efficiency and reliability of the power distribution system. This study aims to determine the level of load imbalance, the amount of power loss due to neutral current, and to evaluate the effectiveness of a two-time-point balancing method (WBP and LWBP) applied to transformer PNIAI007 at PT PLN (Persero) ULP Enarotali. In addition, a simulation using the Mamdani fuzzy logic method was conducted to validate the balancing results based on field measurement data. The results show that the two-time-point balancing method significantly reduced load imbalance from 29% to 2.47% during the day and 1.21% at night. Neutral current decreased from 37.81 A to 14.58 A (daytime) and from 51.76 A to 19.83 A (night). Power losses were reduced by more than 85%. The Mamdani fuzzy simulation supported the accuracy of field data and can serve as a foundation for automatic load evaluation.
Co-Authors Arief Marwanto