Articles
<![CDATA[Pengaruh Penuaan Elektrik Terhadap Karakteristik Tegangan Tembus dan PDIV Minyak NanoNynas ]]>
<![CDATA[Aulia, Aulia]]>;
<![CDATA[Manab, Abdul]]>;
<![CDATA[Putra Waldi, Eka]]>;
<![CDATA[Kodrat, Muhammad]]>;
<![CDATA[Widia, Gusvita]]>
<![CDATA[ JURNAL NASIONAL TEKNIK ELEKTRO Vol 7, No 1: March 2018 ]]>
Publisher : <![CDATA[Jurusan Teknik Elektro Universitas Andalas ]]>
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DOI: 10.25077/jnte.v7n1.522.2018
<![CDATA[The dielectric strength of pure nynas oil can be enhanced by adding various nanoparticles such as nanoalumina (Al2O3). To see the effect of the addition of alumina nanoparticles, 4 types of nynas oil have been prepared with the addition of nanoalumina particles by 0.00%, 0.010%, 0.015% and 0.020%. All samples were tested for dielectric breakdown voltage and partial discharge inception voltage (PDIV) test at room temperature with reference to IEC 60156 test standards. The results showed that the nanonynas oil breakdown voltage increased by 6% and the value of the partial discharge inception voltage also higher than that of pure oil. Keywords : Mineral oil, alumina, brekadown voltage, partial discharge inception voltageAbstrakKekuatan dielektrik minyak transformator nynas nitro murni dapat ditingkatkan dengan menambahkan berbagai partikel nano seperti nanoalumina (Al2O3).Penelitian ini bertujuan untuk melihat effek penambahan partikel nano alumina terhadap karakteristik tegangan tembus dan tegangan insepsi peluahan sebagian. Empat jenis minyak nynas dengan komposisi penambahan partikel nanoalumina sebesar 0.00%, 0.010%, 0.015% dan 0.020% diuji tegangan tembus dielektrik, tegangan insepsi peluahan sebagian (PDIV) pada suhu ruang dengan merujuk kepada standar pengujian IEC 60156. Hasil menunjukkan bahwa tegangan tembus minyak nanonynas meningkat sebesar 6% dan nilai tegangan insepsi dan peluahan sebagian lebih tinggi dibandingkan dengan minyak murni. Kata Kunci : Minyak  nynas nitro libra, alumina (AL2O3), tegangan tembus, PDIV]]>
<![CDATA[Pembangkit Listrik Pikotermal Matahari, Kajian Awal ]]>
<![CDATA[Aulia, Aulia]]>;
<![CDATA[Darwison, Darwison]]>;
<![CDATA[Razak, Faisyal]]>;
<![CDATA[Waldi, Eka Putra]]>
<![CDATA[ JURNAL NASIONAL TEKNIK ELEKTRO Vol 6, No 1: Maret 2017 ]]>
Publisher : <![CDATA[Jurusan Teknik Elektro Universitas Andalas ]]>
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DOI: 10.25077/jnte.v6n1.368.2017
<![CDATA[A Picothermal solar power plant (PLTPM) is an original concept that is still under study. Testing and calculation of voltage and electrical current is carried on a single thermoelectric, thermoelectric cells connected in series and parallel connected thermoelectric cells due to rise in temperature in the cells. The results showed that the increase in temperature of 71 °C produces 1 volt output voltage and current of 0.1 amperes. In accordance with the principle of series and parallel connection, series connection is able to multiply the output voltage and the parallel connections double the current output for one additional thermoelectric cell chipKeywords : Picothermal, thermoelectric cell and series, parallel, temperatureAbstrak— Pembangkit listrik pikotermal matahari (PLTPM) merupakan konsep awal yang masih dalam tahap kajian. Pengujian dan perhitungan tegangan dan arus listrik dilakukan terhadap termoelektrik tunggal, sel termoelektrik terhubung seri dan sel termoeletrik terhubung paralel akibat kenaikan suhu pada sel-sel tersebut. Hasil memperlihatkan bahwa kenaikan suhu sebesar 71 oC menghasilkan tegangan keluaran 1 volt dan arus 0.1 Amper. Sesuai dengan kaedah hubungan seri dan paralel, hubungan seri mampu melipat gandakan tegangan keluaran dan hubungan paralel melipatkan gandakan arus keluaran untuk tambahan setiap satu keping sel termoelektrik.Kata Kunci : pikotermal, sel termoelektrik, seri, paralel, kenaikan suhu]]>
<![CDATA[The effect of silica content to partial discharge characteristic of low-density polyethene and natural rubber blend as the electrical insulator ]]>
<![CDATA[Aulia Aulia]]>;
<![CDATA[Eka Putra Waldi]]>;
<![CDATA[Darwison Darwison]]>;
<![CDATA[Dwi Gustiono]]>;
<![CDATA[Novizon Novizon]]>;
<![CDATA[M. Heru Setiawan]]>;
<![CDATA[M. A. Hafizi]]>
<![CDATA[ TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 19, No 2: April 2021 ]]>
Publisher : <![CDATA[Universitas Ahmad Dahlan ]]>
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DOI: 10.12928/telkomnika.v19i2.16417
<![CDATA[The dielectric properties of low-density polyethylene natural rubber (LDPE-NR) biopolymeric insulating materials can be improved by adding the silica nanoparticles in a certain percentage of weight (w%). In the present study, four types of bio-nano polymeric samples were prepared. To each sample, the nanosilica particles with wt% 1.5%, 3%, 4.5% and 6%. As one characteristic of dielectric, the partial discharge (PD) characteristics, each sample has been tested for 1 hour under AC high voltage field, and the pulses were counted for each sample and grouped into positive and negative pulses. The PD pattern was also plotted based on X-Y axes, namely Φ-q-n pattern. It was found that the number of positive and negative partial discharge (PD) pulses for each silica sample after 60 minutes of testing varied for all samples. It is also found that samples with a higher percentage of nanosilica had fewer PD pulses. The PD pattern in lower w% of silica was identified in the 90 degrees mostly in containing This indicates that w% of nanosilica particles can improve the PD resistance or the insulation quality of LDPE-NR insulation materials.]]>
<![CDATA[The Correlation of Statistical Image and Partial Discharge Pulse Count of LDPE-NR Composite ]]>
<![CDATA[Aulia Aulia]]>;
<![CDATA[Zulkarnain Abdul Malek]]>;
<![CDATA[Yanuar Zulardiansyah Arief]]>;
<![CDATA[Eka Putra Waldi]]>
<![CDATA[ TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 15, No 3: September 2017 ]]>
Publisher : <![CDATA[Universitas Ahmad Dahlan ]]>
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DOI: 10.12928/telkomnika.v15i3.5149
<![CDATA[High voltage insulation must be designed in such a way that it is very resistant to ageing including that from partial discharge (PD). Many studies were previously carried out on composites based on low density polyethylene (LDPE). However, the use of natural rubber (NR) and nanosilica (SiO2) in the LDPE-NR based composites is relatively new. Furthermore, the PD resistant performance of the composites is yet to be extensively researched. This work aims to analyze the correlation between PD pulse count and its related image to interpreting the effect of PD signals. The results show there is a strong correlation between PD pulse count and the statistical image. The results indicate that the surface image statistical analysis can be used as a tool to justify the total of the PD pulse count on the surface for different samples of composite.]]>
<![CDATA[Pembangkit Listrik Pikotermal Matahari, Kajian Awal ]]>
<![CDATA[Aulia Aulia]]>;
<![CDATA[Darwison Darwison]]>;
<![CDATA[Faisyal Razak]]>;
<![CDATA[Eka Putra Waldi]]>
<![CDATA[ JURNAL NASIONAL TEKNIK ELEKTRO Vol 6, No 1: Maret 2017 ]]>
Publisher : <![CDATA[Jurusan Teknik Elektro Universitas Andalas ]]>
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DOI: 10.25077/jnte.v6n1.368.2017
<![CDATA[A Picothermal solar power plant (PLTPM) is an original concept that is still under study. Testing and calculation of voltage and electrical current is carried on a single thermoelectric, thermoelectric cells connected in series and parallel connected thermoelectric cells due to rise in temperature in the cells. The results showed that the increase in temperature of 71 °C produces 1 volt output voltage and current of 0.1 amperes. In accordance with the principle of series and parallel connection, series connection is able to multiply the output voltage and the parallel connections double the current output for one additional thermoelectric cell chipKeywords : Picothermal, thermoelectric cell and series, parallel, temperatureAbstrak— Pembangkit listrik pikotermal matahari (PLTPM) merupakan konsep awal yang masih dalam tahap kajian. Pengujian dan perhitungan tegangan dan arus listrik dilakukan terhadap termoelektrik tunggal, sel termoelektrik terhubung seri dan sel termoeletrik terhubung paralel akibat kenaikan suhu pada sel-sel tersebut. Hasil memperlihatkan bahwa kenaikan suhu sebesar 71 oC menghasilkan tegangan keluaran 1 volt dan arus 0.1 Amper. Sesuai dengan kaedah hubungan seri dan paralel, hubungan seri mampu melipat gandakan tegangan keluaran dan hubungan paralel melipatkan gandakan arus keluaran untuk tambahan setiap satu keping sel termoelektrik.Kata Kunci : pikotermal, sel termoelektrik, seri, paralel, kenaikan suhu]]>
<![CDATA[Prediction of ZnO Surge Arrester Degradation Based on Temperature and Leakage Current Properties ]]>
<![CDATA[Novizon Novizon]]>;
<![CDATA[Zulkarnain Abdul-Malek]]>;
<![CDATA[Aulia Aulia]]>;
<![CDATA[Eka Putra Waldi]]>;
<![CDATA[Abdul Rajab]]>;
<![CDATA[Darwison Darwison]]>
<![CDATA[ JURNAL NASIONAL TEKNIK ELEKTRO Vol 7, No 2: July 2018 ]]>
Publisher : <![CDATA[Jurusan Teknik Elektro Universitas Andalas ]]>
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DOI: 10.25077/jnte.v7n2.501.2018
<![CDATA[Temperature and leakage current on the ZnO arrester are interrelated with each other. In low conduction region, voltage-current characteristics of ZnO surge arrester are highly dependent on temperature. The leakage current will increase as the temperature increases and experience thermal runaway when the temperature exceeds the acceptable limit. This phenomenon is associated with the increase of resistive leakage current due to degradation. Therefore the temperature and leakage current are good indicator to evaluate the condition of ZnO arrester. This paper proposed the degradation prediction of ZnO surge arrester by analyzed the temperature and leakage current. The 132 kV station type ZnO surge arrester was employed. Temperature profile of ZnO arrester was obtained using thermal camera. The leakage current was measured simultaneous with the temperature measurement to attain the leakage current at the actual temperature. The results shows the leakage current continue increasing by increasing the temperature. Keywords : Resistive leakage current, temperature, degradation, prediction, zinc oxide surge arrester]]>
<![CDATA[Pengaruh Penuaan Elektrik Terhadap Karakteristik Tegangan Tembus dan PDIV Minyak NanoNynas ]]>
<![CDATA[Aulia Aulia]]>;
<![CDATA[Abdul Manab]]>;
<![CDATA[Eka Putra Waldi]]>;
<![CDATA[Muhammad Kodrat]]>;
<![CDATA[Gusvita Widia]]>
<![CDATA[ JURNAL NASIONAL TEKNIK ELEKTRO Vol 7, No 1: March 2018 ]]>
Publisher : <![CDATA[Jurusan Teknik Elektro Universitas Andalas ]]>
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DOI: 10.25077/jnte.v7n1.522.2018
<![CDATA[The dielectric strength of pure nynas oil can be enhanced by adding various nanoparticles such as nanoalumina (Al2O3). To see the effect of the addition of alumina nanoparticles, 4 types of nynas oil have been prepared with the addition of nanoalumina particles by 0.00%, 0.010%, 0.015% and 0.020%. All samples were tested for dielectric breakdown voltage and partial discharge inception voltage (PDIV) test at room temperature with reference to IEC 60156 test standards. The results showed that the nanonynas oil breakdown voltage increased by 6% and the value of the partial discharge inception voltage also higher than that of pure oil. Keywords : Mineral oil, alumina, brekadown voltage, partial discharge inception voltageAbstrakKekuatan dielektrik minyak transformator nynas nitro murni dapat ditingkatkan dengan menambahkan berbagai partikel nano seperti nanoalumina (Al2O3).Penelitian ini bertujuan untuk melihat effek penambahan partikel nano alumina terhadap karakteristik tegangan tembus dan tegangan insepsi peluahan sebagian. Empat jenis minyak nynas dengan komposisi penambahan partikel nanoalumina sebesar 0.00%, 0.010%, 0.015% dan 0.020% diuji tegangan tembus dielektrik, tegangan insepsi peluahan sebagian (PDIV) pada suhu ruang dengan merujuk kepada standar pengujian IEC 60156. Hasil menunjukkan bahwa tegangan tembus minyak nanonynas meningkat sebesar 6% dan nilai tegangan insepsi dan peluahan sebagian lebih tinggi dibandingkan dengan minyak murni. Kata Kunci : Minyak nynas nitro libra, alumina (AL2O3), tegangan tembus, PDIV]]>
<![CDATA[Partial Discharge and Breakdown Strength of Plasma Treated Nanosilica/LDPE Nanocomposites ]]>
<![CDATA[N. A. Awang]]>;
<![CDATA[M. H Ahmad]]>;
<![CDATA[Z. Abdul-Malek]]>;
<![CDATA[Z. Nawawi]]>;
<![CDATA[M. A. B. Sidik]]>;
<![CDATA[M. I. Jambak]]>;
<![CDATA[Aulia Aulia]]>;
<![CDATA[E. P. Waldi]]>
<![CDATA[ Proceeding of the Electrical Engineering Computer Science and Informatics Vol 5: EECSI 2018 ]]>
Publisher : <![CDATA[IAES Indonesia Section ]]>
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DOI: 10.11591/eecsi.v5.1707
<![CDATA[Nanocomposites have been actively studied in recent years as an insulating material due to their excellent in electrical, mechanical and thermal properties. Even though, the addition of nanoparticles into polymer matrices showed better performance in relation to partial discharge (PD) and AC breakdown strength tests. However, the introduction of nanoparticles could lead to the formation of agglomeration of the fillers which may nullify the true capabilities of the composites. Therefore, silane coupling agent was introduced for surface functionalization treatment of the nano filler but among the issues associated are toxicity and complexity. In the present study, atmospheric pressure plasma is proposed to enhance the surface functionalization of the nano filler. This proposed method was used to treat the nanosilica (SiO 2 ) surfaces to enhance the interfacial interaction between the host (LDPE) and nano filler. SiO 2 nano filler was added into the LDPE at weight percentages of 1, 3 and 5%. The phase-resolved PD behaviour and Weibull analysis of AC breakdown strength of untreated and plasma-treated LDPE nanocomposites were measured to evaluate the performance of the samples. As results, the plasma treated LDPE nanocomposites experience apparent increments of the PD resistance and AC breakdown strength as compared to the untreated nanocomposites. It is implied that the plasma treatment of nanosilica has contributed to the enhancement of the filler dispersion and eventually reducing the agglomeration.]]>
<![CDATA[SUPPRESSION AND MITIGATION OF COVID-19 THROUGH KKN ACTIVITIES IN NAGARI ]]>
<![CDATA[Darwison Darwison]]>;
<![CDATA[Aulia Aulia]]>
<![CDATA[ LOGISTA - Jurnal Ilmiah Pengabdian kepada Masyarakat Vol 5 No 2 (2021) ]]>
Publisher : <![CDATA[Department of Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Andalas Kampus Limau Manis - Padang, Sumatera Barat Indonesia-25163 ]]>
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DOI: 10.25077/logista.5.2.216-223.2021
<![CDATA[Perlunya kesadaran masyarakat akan protocol kesehatan terutama dalam masa pandemi untuk pengurangi penyebaran virus corona di Indonesia khususnya di nagari. Untuk itu dapat dilakukan langkah-langkah supresi dan mitigasi covid-19 di nagari dengan melibatkan semua unsur masyarakat antara lain melibatkan mahasiswa KKN. Dengan kegiatan KKN ini dapat mengurangi dampak pandemi covid-19 antara lain dalam bentuk kegiatan mahasiswa sesuai bidang studinya dan melibatkan media massa seperti website, blog, Instagram, pamflet, dan spanduk. Berdasarkan hasil kuisioner terhadap kegiatan mahasiswa KKN maka disimpulkan 67% menyatakan berdampak positif.]]>
<![CDATA[Sistem Pengukuran Suhu Tubuh Menggunakan AMG8833 Dan Kinect Sebagai Pencegahan Penularan Covid-19 ]]>
<![CDATA[Wiwin Lovita]]>;
<![CDATA[Aulia]]>;
<![CDATA[Junaldi]]>
<![CDATA[ Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Vol 6 No 1 (2022): Februari 2022 ]]>
Publisher : <![CDATA[Ikatan Ahli Informatika Indonesia (IAII) ]]>
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DOI: 10.29207/resti.v6i1.3687
<![CDATA[The purpose of this study is to create an effective and safe body temperature measurement system to prevent the transmission of covid-19 using the AMG8833 and Kinect. The method of sending data uses the Internet of Thing (IoT) and face tracking with 3D form as face identification using a kinect type xbox 360 using an arduino uno and a buzzer connected to the AMG8833. AMG8833 has an infrared detector which is arranged in an 8x8 array and reads body temperature non-contact by detecting infrared energy from the body. kinect recognizes facial features based on the distance of the kinect position coordinates on the face. AMG8833 and kinect as input, Arduino uno as AMG8833 data processing and buzzer gives a sound signal if the temperature is above 37.10 0C. Body temperature measurement data was carried out 3 times, namely at a distance of 5,10 and 15cm. Measurement data from this body temperature measuring instrument are compared with a thermogun average error value of 0.11% with a difference between the maximum and minimum average body temperatures of 0.04%. It is hoped that body temperature measurements can be as a precaution against the spread of covid-19.]]>
