Analisa Frekuensi Arus Listrik Untuk Deteksi Busur Api Listrik Tegangan Rendah

Usnawati, Dewi Namirah (2018) Analisa Frekuensi Arus Listrik Untuk Deteksi Busur Api Listrik Tegangan Rendah. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Sistem distribusi jaringan tegangan rendah seringkali mengalami gangguan. Gangguan tersebut dapat berupa hubung singkat dan juga kegagalan isolasi. Busur api listrik merupakan salah satu penyebab terjadinya kegagalan pada sistem tegangan rendah. Saat ini beban industri dan rumah tangga mengalami peningkatan yang begitu pesat pada sistem tenaga listrik. Peningkatan tersebut berupa peningkatan beban-beban non linier yang merupakan sumber harmonisa arus sehingga menyebabkan terjadinya permasalahan serius terhadap kualitas dan keamanan sistem tenaga listrik. Hal ini menyebabkan bentuk gelombang tegangan atau arus yang terdistorsi menjadi tidak sinusoidal. Sumber harmonik itu sendiri dapat berupa beban non-linier dan peralatan elektronika daya. Dalam pengujian ini akan dilakukan simulasi kejadian hubung singkat pada kabel serabut tegangan rendah ukuran 1,5mm2, dengan beberapa kombinasi beban dan jumlah serabut yang mengalami kontak. Ketika busur api listrik terjadi arus akan direkam dan data akan dianalisa dengan metode FFT (Fast Fourier Transform) yang tersedia pada software DIAdem. Analisa dilakukan dalam kondisi normal tanpa terjadi busur api listrik dan sesudah terjadi busur api listrik untuk mendapatkan nilai arus maksimum, durasi busur api listrik dan nilai frekuensi individu setiap beban dengan variasi jumlah serabut.==========================================================================================
Low voltage network distribution system is often disrupted. The disorder can be a short circuit and also the failure of the insulation. Electric arc is one of the causes of the occurrence of the failure on a low voltage system. Currently the burden of household and industry experienced a rapid increase in electric power systems. The increase in the form of an increase in the non linear loads that are a source of distortion flow causing the occurrence of serious problems with the quality and security of the power system. This causes a voltage or current waveform distorted is not sinusoidal. Harmonic sources itself can be either a non-linear load and power electronics equipment. In this testing will be done short circuit incident simulation on low voltage wire cable size 1, 5 mm2, with some combination of weights and number of fibers that are having contacts. When electric arc occurs the flow will be recorded and the data will be analyzed by the method of FFT (Fast Fourier Transform) available on software DIAdem. The analysis carried out under normal conditions without going electric arc and arc occurs after the electrical fire to get the value of each individual load with frequency variation of the number of fibres.

Item Type:	Thesis (Undergraduate)
Additional Information:	RSE 621.317 Usn a-1 3100018074541
Uncontrolled Keywords:	Busur Api Listrik Tegangan Rendah, Karakteristik Busur Api listrik, analisa Fast Fourier Transform (FFT), frekuensi resolusi tinggi.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2861 Electric relays. Protective relays--Security measures. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7872 Electric current converters, Electric inverters.
Divisions:	Faculty of Electrical Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User:	Dewi Namirah Usnawati
Date Deposited:	28 Feb 2018 03:35
Last Modified:	02 Jul 2020 23:17
URI:	http://repository.its.ac.id/id/eprint/49711

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