Desain dan Implementasi Peralatan Deteksi Arcing Tegangan Rendah Berbasis Labview

Wicaksono, Azmi (2017) Desain dan Implementasi Peralatan Deteksi Arcing Tegangan Rendah Berbasis Labview. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Busur api listrik tegangan rendah timbul saat terjadi hubung singkat dan memicu kebakaran. Fenomena hubung singkat terjadi saat peralatan pengaman tidak dapat mendeteksi gangguan yang terjadi, meskipun nominal arus saat terjadi hubung singkat sangat tinggi namun durasi hubung singkat sangat cepat sehingga peralatan pengaman konvensional seperti fuse dan circuit breaker (CB) tidak dapat mendeteksi gangguan tersebut, hal inilah yang menimbulkan kebakaran karena hubung singkat. Pada Tugas Akhir ini akan dilakukan pendeteksian arcing pada tegangan rendah dengan mengamati karakteristik arus busur api yang meningkat secara signifikan pada durasi waktu tertentu. Sinyal arus yang masuk akan ditransformasikan menggunakan wavelet. Eksperimen dilakukan dengan membandingkan 3 kondisi yaitu kondisi normal, penambahan beban (switching) serta arcing. Terdapat 2 batas (threshold) yang digunakan sebagai parameter pendeteksian. Threshold pertama adalah nilai arus high frequency maksimum 2A dan yang kedua adalah jumlah titik gangguan sebanyak 7. Berdasarkan hasil pendeteksian, indikator normal akan “ON” selama threshold pertama dan kedua tidak terlampaui, indikator switching “ON” saat threshold pertama terlampaui namun threshold kedua tidak, sedangkan indikator arcing “ON” saat kedua threshold terlampaui. ========================================================= Low voltage electrical arcflash caused occurs when a short circuit and triggering a fire case. The phenomenon of short circuit occurs when protective equipment can not detect the disturbance, although nominal currents during a short circuit is very high but the duration during a short circuit is so fast that safety equipment such conventional fuse and miniature circuit breaker (MCB) can not detect the disturbance. It is which cause a fire case due to short circuit. In this final project will be carried out low voltage arcing detection by observing the characteristics of the arc that increased significantly at specific time duration. The incoming current signal is transformed using a wavelet. Experiments performed by comparing three conditions ,it is normal conditions, switching and arcing condition. There are two threshold that used as a parameter detection. The first threshold is the peak of the high frequency curret, the value is 2A and the second is the number of disturbance points, the value is 7. Based on the result of detection, normal indicator will be “ON” during the first and the second threshold is not exceeded, switching indcator is “ON” when the first threshold is exceeded but not the second threshold, and then arcing indcators “ON” when both of threshold is exceeded.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Busur Api Listrik Tegangan Rendah, Transformasi Wavelet, Threshold arus HF, Threshold titik gangguan,Low Voltage Electrical Arc Flash , Wavelet Transform, High Frequency current threshold, Threshold point of disturbance
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK201 Electric Power Transmission
Divisions: Faculty of Industrial Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User: AZMI WICAKSONO
Date Deposited: 23 Feb 2017 04:04
Last Modified: 05 Mar 2019 03:02
URI: http://repository.its.ac.id/id/eprint/1556

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