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All Journal International Journal of Electrical and Computer Engineering International Journal of Power Electronics and Drive Systems (IJPEDS) International Journal of Applied Power Engineering (IJAPE) JURNAL NASIONAL TEKNIK ELEKTRO Indonesian Journal of Electrical Engineering and Computer Science Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Jurnal Andalas: Rekayasa dan Penerapan Teknologi

Andi Pawawoi

Universitas Andalas

Author-ID : 2396989

Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Health Professions Industrial & Manufacturing Engineering Medicine & Pharmacology Social Sciences Other

Published : 17 Documents Claim Missing Document

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Pengembangan Instrumen Pewarnaan Alam pada Studio Wastra Pinankabu Muhammad Ilhamdi Rusydi; Prima Fithri; Haznam Putra; Andi Pawawoi; Muhammad Imran Hamid; Riko Nofendra
Warta Pengabdian Andalas Vol 28 No 4 (2021)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.28.4.514-520.2021

One of the obstacles the Pinankabu studio faces is the lack of adequate equipment for processing silk threads and the currently available dyeing equipment for natural dyeing. Some equipment such as degumming pans, hangers, furnaces, and stoves are no longer suitable for needs. The properties of silk, which vary with demand and temperature, must be studied under appropriate conditions. Currently, partners can not confirm whether these conditions are met at work. The planned solution to this problem is the design of degumming pans, hangers, furnaces, and stoves that can increase work effectiveness and improve the quality of production and design systems to measure pH and temperature accurately and in real-time. This activity aims to develop yarn processing equipment at Pinankabu studio to increase productivity and maintain product quality. The expected benefits of this activity are that partners have natural colouring instruments that can improve the quantity and quality of production. Operators can work comfortably because the equipment is designed to design ergonomic users. Equipment that will be developed is an example of a similar business. The method used was the implementation of engineered products on partners. The implementation stages consisted of problem formulation, solution determination, solution design, implementation, evaluation, and activity outputs. The expected result is that partners can increase the productivity and quality of the yarn produced.

Harmonic Effects Analysis of Electronic Loads Controller On Self Excited Induction Generator (SEIG) Operations Refdinal Nazir; Andi Pawawoi; Riska Amalia
Indonesian Journal of Electrical Engineering and Computer Science Vol 8, No 2: November 2017
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v8.i2.pp273-280

The aplication of Electonic Load Controller (ELC) on Self-Excited Induction Generator (SEIG) driven by renewable energy sources creates harmonic issues. This paper has analyzed the propagation of the harmonic current generated by the ELC in the generator system. Mathematical modeling and computer simulation is used to analyze the propagation of harmonic currents generated by ELC on the generator system. Laboratory testing has also been conducted to justify the simulation results. The study results showed that the propagation harmonic currents created by ELC on the stator widings of SEIG and main load side are rejected for high order components, and attenuated for lower order components. Consequently, the THDI of stator and main load current will be reduced significantly.

Analysis of energy losses reduction potential on the distribution line of campus building through electric power quality improvement Andi Pawawoi; Zuheldi Zuheldi; Fajril Akbar; Refdinal Nazir
Indonesian Journal of Electrical Engineering and Computer Science Vol 17, No 2: February 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v17.i2.pp868-876

In public and commercial buildings, the reduction of electricity consumption activities can be conducted through 3 paths, including improving the quality level of electric power, increasing the efficiency of electrical equipment, and reducing the waste of electric energy use. In this paper, the energy losses reduction potential on the distribution line of Engineering Faculty, Andalas University buildings through electric power quality improvement are analyzed. Power Quality (PQ) variables that considered in this analysis include power factor, unbalance current load and harmonics distortion. Analysis of correlation between PQ variables is required to determine the power loss on the distribution line of buildings. Using data of PQ variables recorded by Fluke Power Analyzer 435 series II, the energy losses of the distribution line without/with PQ improvement for each building is calculated. Analysis results have shown that the reduction potential is proportional to the value of PQ variables. Administrative faculty building with poor power quality has the potential to reduce its energy losses on the distribution line by 52.62% through power quality improvement. Civil engineering building group with quite good power quality only has the potential to reduce energy losses by 32.81%. Overall, the buildings in this faculty have the potential to reduce energy losses on distribution lines by 34.42% through its power quality improvement.

Identification of Power Plant Operation and Loading Problems at Ngalau Baribuik Micro Hydro, Padang Refdinal Nazir; Andi Pawawoi; Melda Latif; Muhammad Imran Hamid; Pinto Anugrah; Eka Fitrianto; Ahmad Ahmad
Jurnal Andalas: Rekayasa dan Penerapan Teknologi Vol. 1 No. 2 (2021): Desember 2021
Publisher : Jurusan Teknik Elektro, Universitas Andalas

Ngalau Baribuik Micro-hydro Power Plant (MHP) is located in Bukit Karang Putih, Lubuk Kilangan, Padang City. This MHP with a capacity of 10 kW belongs to the local community which has been operating since 2012. This MHP was built with the aim of meeting the electricity needs of the people of Nagari Ngalau Baribuik who are not covered by electricity from PLN. Based on the information obtained from the MHP management, until now the operating profile and loading pattern of the MHP which is managed independently by the community has not been identified. To overcome this problem, a community service activity was carried out to minimize the failure of the MHP in meeting the needs of the community and the worst possibility was that there was damage to the generator. The target of this activity is the people of Nagari Ngalau Baribuik who are consumers of the MHP. Through this community service activity, the people who are consumers of the Nagari Ngalau Baribuik MHP have understood the importance of saving energy to maintain the sustainability of the MHP. People also know tips for saving energy that they can apply in their daily lives. Efforts to transfer knowledge to the community have been successfully carried out through this activity.

Rancangan Alat Konversi Bahan Bakar Minyak ke Bahan Bakar Gas Guna Memenuhi Kebutuhan Gas Rumah Tangga Andi Pawawoi; Defri Wandi; Jefri Ramadhan
Jurnal Andalas: Rekayasa dan Penerapan Teknologi Vol. 1 No. 2 (2021): Desember 2021
Publisher : Jurusan Teknik Elektro, Universitas Andalas

Peranan bahan bakar minyak (BBM) pada era modern ini masih cukup besar, bisa dikatakan manusia belum bisa lepas dari BBM mmeskipun terdapat sumber energi alternatif yang bisa digunakan. Salah satu pemanfaatan BBM disektor rumah tangga adalah penggunaan kompor gas dan minyak untuk memasak. Saat ini penggunaan kompor minyak tidak lagi banyak ditemukan sejalan dengan upaya pemerintah mengganti kompor minyak menjadi kompor gas dengan alasan peningkatan efisiensi. Penggunaan gas yang sangat banyak pada bidang rumah tangga ini tentu perlu diiringi dengan suply yang memadai oleh pemerintah. Terlebih lagi didukung oleh program alih energi yang digalakan pemerintah untuk mengalihkan pola pakai masyarakat dari bahan bakar minyak ke bahan bakar gas. Namun hingga saat ini masih terjadi beberapa kendala dalam penggunaan gas ini baik dari pendistribusiannya maupun harga. Pendistribusian gas yang kurang merata ke daerah terpencil membuat tidak semua masyarakat dapat memperoleh gas dengan mudah. Harga gas di daerah terpencil menjadi lebih mahal karena adanya tambahan biaya transportasi.. Di daerah-daerah terpencil umumnya bahan bakar minyak terutama pertalite lebih mudah diperoleh dibanding bahan bakar gas. Bahan bakar minyak seperti Pertalite dapat dimanfaatkan sebagai bahan bakar kompor dengan mengubahnya terlebih dahulu menjadi gas menggunkan system Karburator Uap untuk mengubah BBM menjadi Gas. Sistem ini cukup sederhana dapat dapat dirakit oleh masyarakat berpengetahuan setingkat SD. Energi dari 1 liter pertalite jika digunakan sebagai bahan bakar gas pada kompor LPG dapat setara dengan 2 hingga 3 botol LPJ 3 kg. Kualitas api yang dihasilkan kompor dengan bahan bakar gas dari pertalite setara dengan kulaitas api dari bahan bakar gas LPG.

Perancangan Sistem Smart Egg Incubator sebagai Optimalisasi Pemanfaatan Energi Terbarukan di Ngalau Baribuik, Padang Refdinal Nazir; Andi Pawawoi; Melda Latif; Muhammad Imran Hamid; Pinto Anugrah; Eka Fitrianto
Warta Pengabdian Andalas Vol 30 No 2 (2023)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.30.2.304-313.2023

Micro Hydro (PLTMH) Ngalau Baribuik, Padang - West Sumatra, has operated since 2012. It is currently the only source of electricity for the local community, some of whom work as chicken breeders. Based on community service activities in 2021, information was obtained that the PLTMH's electricity had yet to be utilized optimally. Meanwhile, chicken breeders also needed egg incubators to increase their productivity. This community service activity aims to design an IoT-based automatic egg incubator to optimize the use of renewable energy. Activities started with field visits, making initial plans, designing and testing the machine, handing over the machine, and disseminating knowledge. The designed a smart egg incubator worked well after a 21-day hatching test for chicken eggs. The IoT technology installed on the device also functions appropriately and can show real-time temperature and humidity on mobile devices.

Dissolved gas analysis comparison of electrically stressed methyl ester and mineral oil Rajab, Abdul; Andre, Hanalde; Pawawoi, Andi; Baharuddin, Baharuddin; Gumilang, Harry
International Journal of Electrical and Computer Engineering (IJECE) Vol 14, No 4: August 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v14i4.pp3628-3639

Methyl ester is considered one of the alternative substitutes to mineral oil as an insulating liquid. This study investigates the dissolved gas analysis (DGA) of the methyl ester derived from palm oil, under low energy discharge faults. The aims are to understand the gas composition and evaluate the applicability of the well-established fault interpretation methods for mineral oil to the methyl ester. Experimental procedures were conducted based on the International Electrotechnical Commission (IEC) standards. It involved simulating electrical breakdowns in laboratory conditions as per IEC-156 standard and analyzing gas samples using gas chromatography based on IEC-567. Results show that methyl ester oils produce similar types of gases as mineral oils but at higher concentrations. The interpretation of DGA results using fault identification methods such as Duval Triangle, Duval Pentagon, and IEC ratio indicates an overestimation of fault severity in methyl ester oils, and categorizing the faults as high energy discharge. However, the key gas method correctly identifies the discharge in both methyl ester and mineral oils. These findings suggest the need for adjustments in existing DGA methods to account for the higher gas concentrations in methyl ester oils, for effective condition monitoring and maintenance of transformers if it was filled with methyl ester oil.

Co-Authors Abdul Rajab Ahmad Ahmad Aminudin Sulaeman Axel Doriza Baharuddin Baharuddin Defri Wandi Didin Mujahidin Eka Fitrianto Eka Fitrianto Fajril Akbar Gumilang, Harry Hanalde Andre Haznam Putra Jefri Ramadhan Melda Latif Melda Latif Muhammad Imran Hamid Mujahidin, Didin Pinto Anugrah Pranata, Vegi Apria Prima Fithri Refdinal Nazir Riko Nofendra Riska Amalia Rusydi, Muhammad Ilhamdi Sulaeman, Aminudin Syafii . Vegi Apria Pranata Wahyu Prabowo Yudi Arfan Zuheldi Zuheldi Zulfahmi Zulfahmi Zulfahmi, Zulfahmi

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