MUHAMMAD, FADHIL (2025) PERANCANGAN FILTER PASIF UNTUK MEREDUKSI HARMONISA PADA INSTALASI LISTRIK PABRIK DI JATAKE. S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
In modern electrical systems, especially in industrial installations, power quality is a crucial factor that affects equipment performance, energy efficiency, and operational reliability. The presence of harmonics can cause various negative impacts, such as overheating of transformers and motors, interference with measuring instruments, reduced power factor, and potential disruptions to protection systems. This study employs a quantitative experimental approach using direct measurement and technical simulation methods. Harmonic measurements were conducted using a power quality analyzer, and the data were analyzed with MYeBox Circutor software. Based on the analysis results, a single-tuned LC passive filter was designed, focusing on the 5th-order harmonic, which is the dominant component in the system. The filter was simulated using ETAP software to evaluate its effectiveness in reducing harmonics and its impact on the overall power system. Simulation results show that the application of the passive filter successfully reduced the THDi value from 51.08% to 7.05%, and the IHDi of the 5th-order harmonic from 44.9% to 3.25%. This reduction indicates that passive filters are effective in mitigating harmonics, although the final THDi value remains slightly above the standard threshold. The conclusion of this study is that passive filters can be a technically and economically viable solution to improve power quality in industrial environments. However, for systems with high load fluctuations, the use of active or hybrid filters is recommended as a more adaptive alternative. Keywords: ETAP, Passive Filter, Harmonics, IEEE 519-2014. Dalam sistem kelistrikan modern, khususnya pada instalasi industri, kualitas daya listrik menjadi faktor krusial yang memengaruhi kinerja peralatan, efisiensi energi, dan keandalan operasional. Keberadaan harmonisa dapat menyebabkan berbagai dampak negatif, seperti pemanasan berlebih pada transformator dan motor, gangguan pada alat ukur, penurunan faktor daya, serta potensi gangguan pada sistem proteksi. Penelitian ini menggunakan pendekatan kuantitatif eksperimental dengan metode pengukuran langsung dan simulasi teknik. Pengukuran harmonisa dilakukan menggunakan power quality analyzer, dan data dianalisis dengan perangkat lunak MYeBox Circutor. Berdasarkan hasil analisis, dirancang filter pasif tipe single tuned LC yang difokuskan pada harmonisa orde ke-5, komponen dominan dalam sistem. Filter ini disimulasikan menggunakan perangkat lunak ETAP untuk mengevaluasi efektivitasnya dalam mereduksi harmonisa serta dampaknya terhadap sistem tenaga listrik secara keseluruhan. Hasil simulasi menunjukkan bahwa penerapan filter pasif mampu menurunkan nilai THDi dari 51,08% menjadi 7,05%, dan IHDi harmonik orde ke5 dari 44,9% menjadi 3,25%. Penurunan ini menunjukkan bahwa filter pasif efektif dalam mereduksi harmonisa, meskipun nilai THDi akhir masih sedikit di atas ambang batas standar. Kesimpulan dari penelitian ini adalah bahwa filter pasif dapat menjadi solusi teknis yang ekonomis untuk meningkatkan kualitas daya listrik di lingkungan industri. Namun, untuk sistem dengan fluktuasi beban tinggi, disarankan penggunaan filter aktif atau hybrid sebagai alternatif yang lebih adaptif. Kata kunci: ETAP, Filter pasif, harmonik, IEE 519-2014.
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