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Hendri Hendri
Electro Engineering, Faculty of Engineering, Universitas Negeri Padang
Education Engineering

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Testing of Palm Oil-Based Electric Power Transformer Insulation Oil as a Renewable Energy Source Hendri Hendri; Yanuar Zulardiansyah Arief; Abdul Syukur
Jurnal Pendidikan Teknologi Kejuruan Vol 6 No 1 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v6i1.32323

Abstract

Reducing petroleum resources and environmental problems, alternative insulating oils with biodegradable characteristics have become an alternative. Esterification of palm-based oil is expected to provide better and optimum electrical properties. The esterification of palm oil will be carried out as a test sample and observed for its electrical, physical and chemical properties such as PD characteristics, breakdown voltage, dissipation factor, viscosity, flash point, etc. The effect of thermal aging on oil samples will also be carried out to simulate real situations in power transformer applications. Then after obtaining the best formulation from the sample it will be used as insulating oil in electric power transformers (100kVA). The purpose of this research is to apply esterified palm oil as an electric power transformer oil. The method used in this research includes field research. Field research includes taking oil samples, measuring the breakdown voltage of transformer oil, and the color of transformer oil. The results obtained are insulating oil for electric power transformers based on palm oil. Palm oil has the advantage of being an environmentally friendly, biodegradable and renewable oil compared to the transformer oil used today which is based on petroleum. With the realization of transformer oil based on palm oil, it is hoped that it can provide great economic opportunities for Indonesia as one of the largest palm oil producers in the world and can also provide added value and increase the competitiveness of the palm oil industry in the future.
Suitcase Security System Using Android and GPS Hendri Hendri; Rosyinta Rosyinta
Jurnal Pendidikan Teknologi Kejuruan Vol 5 No 4 (2022): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v5i4.32423

Abstract

Technological progress is something that cannot be avoided in line with the development of science. Technology provides many benefits because technology is present to facilitate human work. One of the technological advances is the presence of airplanes. To go wherever humans are not restricted by distance and time. Generally, people will use a suitcase to store their luggage when they travel because it is easier to carry. But the theft of items in the suitcase is rampant. For this reason, a security system can be made that can inform the owner that the suitcase has been forcibly opened. The PIR sensor installed in the suitcase will detect if there is movement and temperature of the human body heat in the suitcase. Then GSM SIM900A will send a notification to the owner and the buzzer will sound. If the suitcase has been stolen and taken away then we can see the location of the suitcase in the application that has been made with coordinates obtained from the GPS module installed in the suitcase. In addition, we can activate or deactivate the sensor through an application that has been made with the aim that when the owner opens the suitcase there will be no notification that the suitcase has been forced open and the buzzer will not ring.
Co-Authors Abdul Syukur Rosyinta Rosyinta Yanuar Zulardiansyah Arief