Kusuma, Agus Prawira (2020) Pengaruh Jenis Beban Terhadap Faktor-k pada Transformator Berbasis Analisa Harmonisa di PLN ULP Rungkut. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Faktor-k adalah salah satu akibat dari ada nya arus harmonisa yang menyebabkan panas yang berlebih pada transformator. Transformator khusus dirancang untuk digunakan pada beban non-linier dengan standar K-factor rating tertentu. Ketika faktor-k melebihi standar, K-rated transformer atau derate a standard transformer menjadi perlu untuk digunakan. Berdasarkan IEEE C57.100-1986. Tetapi dalam pelaksanaannya, pemasangan transformator distribusi di PLN ULP Rungkut tidak memperhitungkan nilai dari derating factors yang dapat mempengaruhi kualitas atau umur dari transformator tersebut. Oleh karena itu, Pada tugas akhir ini dilakukan analisis pada trasnformator dengan tiga jenis beban yaitu rumah tangga, bisnis, dan industri yang memberikan hasil seberapa besar pengaruh perbedaan jenis beban terhadap harmonisa dan nilai faktor-k pada transformator distribusi. Karakteristik pengukuran THD Arus dan tegangan pada waktu beban puncak (WBP) juga akan dibandingkan dengan standar IEEE. Hasil Pengukuran dan analasis THD arus dan tegangan di waktu beban puncak (WBP) pada setiap jenis beban sesuai dengan standar IEEE 519 “IEEE Recommended Practices and Requiretment for harmonic Control in electric in Electrical Power System “, kecuali pada Transformator BE 554 Fasa S tidak sesuai standar dengan nilai THD arus 16,83%. Nilai Faktor-k yang telah dihitung untuk ketiga fasa menunjukkan bahwa jenis pelanggan rumah tangga dan bisnis memiliki tren data faktor-k yang tertinggi. Hal tersebut menyebabkan, jenis pelanggan rumah tangga, bisnis, dan industri sangat mempengaruhi nilai faktor-k. Dari hasil perhitungan derating factor (D), kapasitas transformator distribusi yang terpasang sudah sesuai karena pembebanan transformator tidak melebihi pembebanan yang dianjurkan. Hal ini menunjukkan transformator tersebut masih aman digunakan sehingga uprating transformator tidak diperlukan. Namun data tersebut bisa dijadikan acuan apabila terjadi pertumbuhan jumlah beban dikemudian hari.
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The k-factor is one of the cause of harmonic currents that emerge overheating in the transformer. A Special transformer is designed to be used at non-linear loads with certain K-factor rating standards. When the k-factor exceeds the standard, a K-rated transformer or a derated standard transformer becomes necessary to use. Based on IEEE C57.100-1986. However, in its implementation, the installation of the distribution transformer at PLN ULP Rungkut has not determined the value of the derating factor that can affect the quality or life of the transformer. Therefore, in this Final Project, an analysis is carried out on the transformer with three types of load which are household, business, and industry which give significant results regarding to the different types of load on harmonics and the k-factor value of the distribution transformer. THD in voltage and current measurement characteristics at peak load time (PLT) will also be compared with IEEE standards. Measurement results and analysis of THD of current and voltage for each type of load at peak load times (PLT) are still in accordance with the IEEE standard 519 "IEEE Practical Recommendations and requirements for harmonic control in electricity in the Electric Power System ", except for the BE 554 Phase S Transformer, it is not in accordance with the standard THD current value of 16.83%. The k-factor value which has been calculated for three phases shows that the type of household and business load has the highest k-factor data trend. This causes, the type of household, business, and industry customer greatly determines the k-factor value. From the calculation of the derating factor (D), the distribution transformer capacity installed is compatible with the loading of the transformer and not exceeding the recommended on-load capacity. This shows that the transformer is on safe condition to use so the uprating transformer is unneccesary. However, this data can be aimed for expenses that occur today.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSE 621.314 Kus p-1 2020 |
| Uncontrolled Keywords: | Faktor-k, THD, Transformator, Derating factor, Kapasitas |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3226 Transients (Electricity). Electric power systems. Harmonics (Electric waves). |
| Divisions: | Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Agus Prawira Kusuma |
| Date Deposited: | 21 Dec 2023 02:52 |
| Last Modified: | 21 Dec 2023 02:52 |
| URI: | http://repository.its.ac.id/id/eprint/72709 |
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