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Rancang Bangun Sistem Pengontrolan Arus Dan Temperatur Pada Kompor Listrik Berbahan Bakar Air Berbasis Arduino MEGA 2560 Nasrul Nasrul; Witrionanda Witrionanda
Jurnal Teknik Elektro Vol 8, No 1 (2019): Jurnal Teknik Elektro
Publisher : Situs resmi ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (267.197 KB)

Abstract

Water stove is one type of development in the field of alternative energy by utilizing a water electrolysis process that separates water molecules into hydrogen and oxygen gas by flowing electric current into electrolytes (water fluid and NaCl catalyst) through Aluminum electrodes. Hydrogen and oxygen gas are used as fuel for water stoves to light a fire. Electrolyser is designed by using 4 tubes with maximum fluid per tube consisting of 250 mL water and 4 gram NaCl catalyst. The stability of the electrolysis process is regulated based on current flow and temperature in the process. Monitoring current using ACS712 current sensor and temperature control using a thermistor that is used as temperature control at the temperature of the tube area and then processed by the Arduino mega 2560 microcontroller. In the electrolyzer with a 12 Volt 21 A voltage source, the water stove can light a fire with a maximum current of 21 A (2 tubes in parallel with a maximum current of 10.5 A) and a temperature setpoint of 700 C. However, the current is too large and the temperature too high can cause heat and increase the electrolyzer chamber temperature and this negatively impacts the electrolyzer tube. Based on this explanation, a regulatory unit is needed in the form of current and temperature controls on the electrolyzer to prevent excessive evaporation of the tube and make the tube too hot and melt. With the current and temperature control and proper construction, the water stove is safer when operated by the user.
PEMETAAN JARINGAN DISTRIBUSI (SUTM) 20 kV DAN PERKIRAAN KEBUTUHAN LISTRIK DI KECAMATAN PAYUNG SEKAKI, KABUPATEN SOLOK Surfa Yondri; Witrionanda witrionanda; A fadly
Elektron : Jurnal Ilmiah Vol 5 No 2 (2013): Elektron Jurnal Ilmiah
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (360.512 KB) | DOI: 10.30630/eji.5.2.51

Abstract

Payung Sekaki district is one of the area in Solok Region that needs the development of electricity network. To support its development plan, the real condition of Payung Sekaki district should be known. The mapping method is one of the way to know the already implemented electricity area.Based on the mapping result, it is known that the electricity network of SUTM 20 kV at Payung Sekaki district has been implemented in Sikrukam area and Supayang area and not yet in Aie Luo area. The estimation method of electricity needs at Payung Sekaki district is motivated to get information on its development based on economic and population growth. Data processing results using SPSS show that the eletricity needs at Payung Sekaki district from 2013 to 2014 will dramatically increase followed by the increasing of economic growth in spite of population growth is still remain the same.
PREDIKSI DISTORSI HARMONISA PADA UTILITY LISTRIK PERUMAHAN YANG DISEBABKAN OLEH BEBAN NONLINIER MENGGUNAKAN STATISTIK PERBANDINGAN LINIER Riza Widia; Herisajani Herisajani; Witrionanda Witrionanda
Elektron : Jurnal Ilmiah Vol 1 No 1 (2009): Elektron Jurnal Ilmiah
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (465.473 KB) | DOI: 10.30630/eji.1.1.9

Abstract

Loads of electricity utility consists of linear loads and non linear loads. The non linear loads for example TV, personal computer, VCD player, microwave and fluorescent lamp using electronics ballast. Loads with non linear characteristics become harmonic current source to electricity utility. Condition prediction used statistic linear comparison based on load power to THDi (Distortion of Harmonic Current). Measurement result using power quality analyzer and etap 4.0 (Fluke 43B) find typical THDi. The calculation and measurement result of PF and THD to loads of electricity utility show the differences less than 5%. However power factor formulation and distortions of harmonic current is valid