Analisis Harmonisa Dan Rancang Filter Single Tuned Pada Transformator Distribusi 1250 kVA Di PT. Industri Kereta Api (Persero)

Farizi, Dedy Ahmad NUR (2023) Analisis Harmonisa Dan Rancang Filter Single Tuned Pada Transformator Distribusi 1250 kVA Di PT. Industri Kereta Api (Persero). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

PT. INKA (Persero) menggunakan banyak peralatan listrik yang merupakan beban listrik non linier yang dapat menimbulkan adanya kandungan harmonisa yang tinggi. Pada PT. Industri Kereta Api dilakukan pengukuran harmonisa secara langsung pada transformator 1250 kVA menggunakan alat power quality analyzer. Hasil yang diperoleh saat pengukuran harmonisa adalah nilai individual harmonis distortion (IHD). Nilai IHD digunakan untuk menentukan nilai total harmonic distortion (THD). Nilai total harmonic distortion arus (THDI) pada main distribution panel (MDP) di phasa R, S, dan T berturut-turut sebesar 14,93%, 15,42%, dan 12,49%. Nilai THD tersebut melebihi standart harmonisa yang ada dalam SPLN 2102 dengan batas nilai THDi adalah kurang dari 8%. Nilai total harmonic distortion tegangan (THDV) tidak melebibihi standar. Nilai THDv pada main distribution panel (MDP) di phasa R, S, dan T berturut-turut sebesar 2,6%, 2,96%, dan 2,24% dengan nilai stndart 5%. Harmonisa dapat menyebabkan bertambahnya nilai rugi-rugi pada transformator. Rugi-rugi tranformator akibat adanya harmonisa pada phasa R, S, dan T beturut-turut adalah 6,77127 kW, 7,83192 kW, dan 4,31199kW. Nilai harmonisa dapat diredam dengan pemasangan filter harmonisa single tuned. Akan tetapi, karena nilai harmonisa tegangan pada transaformator 1250 kVA di PT. Industri Kereta Api relatif kecil dan belum melebih strandar SPLN, maka pemasangan filter harmonisa tidak perlu dilakukan.
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PT. INKA (Persero) uses a lot of electrical equipment which is a non-linear electrical load which can cause a high content of harmonics. Therefore, it is necessary to do research on the transformer in the building. The purpose of this study was to determine and analyze the content of current and voltage harmonics and how to reduce the optimal harmonics in the electric power system in the PT. INKA (Persero). The method used in this research is a quantitative method with a descriptive approach. The data collection technique uses observation, literature study, and direct measurements on the 1250 kVA transformer in the PT building. INKA (Persero) uses a power quality analyzer. Data analysis used is quantitative analysis using a predetermined formula. The results of the analysis of harmonics on the 1250 kVA distribution transformer at PT inka are the total current harmonic distortion (THDi) values on the main distribution panel (MDP) in phases R, S, and T respectively of 14.93%, 15.42%, and 12.49%. The THD value exceeds the harmonic standard in SPLN 2102 with a THDi value limit of less than 8%. The value of the total harmonic distortion voltage (THDv) does not exceed the standard. The THDv value on the main distribution panel (MDP) in phases R, S, and T is 2.6%, 2.96%, and 2.24% respectively with a standard value of 5%. Harmonics can cause increased losses in the transformer. Transformer losses due to the presence of harmonics in the R, S, and T phases are 6,77127 kW, 7,83192 kW, and 4,31199kW, respectively. Harmonic values can be dampened by installing a single tuned filter. However, due to the voltage harmonic value on the 1250 kVA transformer at PT. Industri Kereta Api is relatively small and does not exceed SPLN standards, so there is no need to install harmonic filters.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	beban non linier, harmonisa, IHD, THD, THDI, THDV, main distribution panel (MDP), filter harmonisa single tuned, non-linier load, harmonic, single tuned filter.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK6565.T7 Transformers
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User:	Dedy Ahmad Nur Farizi
Date Deposited:	26 Jan 2024 04:05
Last Modified:	26 Jan 2024 04:05
URI:	http://repository.its.ac.id/id/eprint/105659

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