Analisis Karakteristik Gangguan Hubung Singkat Antar Belitan Transformator Tegangan Rendah Tiga Fasa Dengan Metode Discrete Wavelet Transform (DWT)

Gunawan, Mohammad Akbar (2023) Analisis Karakteristik Gangguan Hubung Singkat Antar Belitan Transformator Tegangan Rendah Tiga Fasa Dengan Metode Discrete Wavelet Transform (DWT). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada studi ini, hubung singkat antar belitan transformator tegangan rendah tiga fasa dianalisis menggunakan discrete wavelet transform (DWT). Gangguan hubung singkat diberikan pada belitan primer maupun sekunder sebanyak 66 kasus. Sinyal arus yang telah didapatkan, diolah dengan metode DWT untuk mendapatkan energi pada 1⁄2 cycle. Nilai energi maksimum yang telah muncul dari metode DWT menjadi variabel deteksi pada studi ini. Didapatkan bahwa DWT berhasil mendeteksi 89,3% gangguan pada studi ini. Nilai energi pada masing-masing kasus juga berbeda. Pada fasa yang menjadi lokasi gangguan hubung singkat, lebih mudah melihat kondisi awal mula gangguan, steady state short circuit, dan akhir gangguan yang ditandai oleh adanya lonjakan nilai energi pada 3 kondisi tersebut.
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In this study, the short circuit between the windings of a three-phase low-voltage transformer is analyzed using a discrete wavelet transform (DWT). Short circuit faults were given to the primary and secondary windings in 66 cases. The current signal that has been obtained is processed by the DWT method to obtain energy at ½ cycle. The maximum energy value that has emerged from the DWT method is the detection variable in this study. It was found that DWT succeeded in detecting 89.3% of disturbances in this study. The energy value in each case is also different. In the phase which is the location of the short circuit fault, it is easier to see the conditions at the beginning of the disturbance, the steady state short circuit, and the end of the disturbance which is marked by a spike in the energy value in these 3 conditions.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Transformator, Hubung Singkat Antar Belitan, Discrete Wavelet Transform, Transformers, Inter-turn Short Circuit
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2551 Electric transformers.
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User:	Mohammad Akbar Gunawan
Date Deposited:	25 Jul 2023 01:42
Last Modified:	25 Jul 2023 01:42
URI:	http://repository.its.ac.id/id/eprint/99287

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