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Muhammad Yusuf Mappeasse
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Electrical Engineering Education Department Building, 2nd Floor, Faculty of Engineering, Universitas Negeri Makassar.
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Media Elektrik
Published by Universitas Negeri Makassar
ISSN : 19071728     EISSN : 27219100     DOI : 10.59562/metrik
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Engineering
Publications in the areas of Electrical Engineering, Information and Computer Engineering, and Control include research articles and reviews of the literature.
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 12 Documents
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Search results for , issue "Vol. 22 No. 2 (2025): MEDIA ELEKTRIK" : 12 Documents clear
The DEVELOPMENT OF SAVONIUS VERTICAL-AXIS WIND TURBINE PROTOTYPE BASED ON MICROCONTROLLER Zulhajji, Zulhajji; Suhardi, Iwan; Sadri, Abdul Rijal
Jurnal Media Elektrik Vol. 22 No. 2 (2025): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i2.1263

Abstract

This research focuses on the development of a valid prototype of the Savonius vertical axis wind turbine model through a research and development (R&D) approach, using a modified Borg and Gall development model. The study introduces a functional prototype suitable for student learning in renewable energy courses, offering a simpler and more portable alternative to wind energy generation. Student responses showed a positive perception, with 53% stating that the Savonius wind turbine was suitable for the presentation. The results of the questionnaire showed an overall average score of 86%, which was categorized as "Very Appropriate". The turbine operates effectively at a minimum wind speed of 3.5 m/s, producing an average voltage of 10.28 V, a current of 10.46 mA, and an output power of 1 watt. Although relatively small, this power level is sufficient for small-scale applications, highlighting the prototype's ability to support devices with low power or simple lighting, as well as serving as a renewable energy education tool. Wind turbine performance analysis showed optimal results at an average wind speed of 3.88 – 4.84 m/s, a power coefficient (Cp) of 0.87, and a tip-speed ratio (TSR) of 0.82. This shows a direct correlation between the TSR and the power coefficient, which indicates efficient turbine performance.
ANALYSIS OF TRANSIENT OVERVOLTAGES DUE TO LIGHTNING SURGES AT 150KV MAKALE TANA TORAJA SUBSTATION Bayu Lopari, Argia; Zulhajji, Zulhajji; Tjandi, Yunus
Jurnal Media Elektrik Vol. 22 No. 2 (2025): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i2.4508

Abstract

Transient overvoltage is a phenomenon in the power system that can be caused by lightning or switching surges. These overvoltages have large amplitudes and short durations, potentially damaging equipment, especially the Circuit Breaker, leading to failure in power distribution. As such, analyzing transient overvoltage is critical for understanding its impact and for designing systems that can withstand such surges. This study investigates transient overvoltages at PT PLN (Persero) 150 kV Makale Tana Toraja Substation, calculating the highest possible transient overvoltage that could affect Circuit Breakers. The research employs a quantitative descriptive approach with an Ex-Post Facto design, using the lattice diagram method to analyze the transient overvoltage behavior. Findings reveal that the highest recorded transient overvoltage was 227.231 kV, with values decreasing as the distance from the lightning strike increases. Furthermore, calculations suggest that in the case of properly functioning arresters, transient overvoltage values at Circuit Breakers 1 and 2 are 512.33 kV and 542.514 kV, respectively. However, if the arresters are damaged, these values increase significantly to 1031.94 kV and 1028.814 kV. This study emphasizes the importance of maintaining functional lightning arresters to ensure protection system efficacy. By optimizing the design and operational parameters of protection equipment, this research contributes to strengthening the resilience of substations, ensuring the safety and reliability of critical infrastructure in areas prone to lightning strikes.
EVALUATION OF ROOFTOP SOLAR POWER PLANT (PLTS) WITH ON GRID SYSTEM (CASE STUDY AT SMKN 3 MAKASSAR) Yusuf Mappeasse, Muhammad; Suhardi Rahman, Edi; Mega Putri Pamuso , Noviola
Jurnal Media Elektrik Vol. 22 No. 2 (2025): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i2.4532

Abstract

This research is quantitative descriptive research that aims to determine the results of the evaluation of the PLTS system at SMKN 3 Makassar and also find out what factors affect the feasibility of this renewable energy power plant. Rooftop solar power plant with on-grid system is a system consisting of solar panels installed on the roof of a building that is directly connected to the PLN network, this system makes a building produce its own electricity from sunlight. This research uses documentation and observation methods carried out by direct observation of the PLTS distribution panel and also making observations on the conductor system and cross section. PLTS with polycrystalline type panels usually have an efficiency of around 13% to 16% and based on the results of this study, the lowest efficiency calculation results were obtained on Tuesday, 26 September 2023 operating hours 12.00 with a frequency of 50 Hz, light intensity of 915 W/m2, with a data value of 5773.1 kWh out and 41,450 kWh incoming power with a PLTS efficiency of 13%. Then the highest efficiency calculation occurred on Friday, 06 October 2023 with a frequency of 50 Hz, light intensity of 770 W/m2, with an outgoing data value of 5817.2 kWh and an incoming power of 20,000 kWh with a PLTS efficiency of 29%, therefore it can be concluded that the on-grid rooftop PLTS at SMKN 3 Makassar has a very good ability to convert solar energy into energy.
WEB-BASED ACCESS AND ATTENDANCE SYSTEM FOR ELECTRICAL ENGINEERING STUDENTS AT UMK USING BARCODE ON STUDENT ID CARDS (KTM) Rifqi Zulhilmi; Noor Yulita Dwi Setyaningsih; Mohammad Iqbal
Jurnal Media Elektrik Vol. 22 No. 2 (2025): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i2.6758

Abstract

This research aims to develop a Web-Based Attendance and Access System for Electrical Engineering Students at Muria Kudus University (UMK) using Student Identity Cards (KTM) equipped with barcode technology. This system not only manages student attendance digitally but also improves classroom security by integrating a barcode verification-based electromagnetic locking system. The development process of this system uses the Research and Development (R&D) method with the ADDIE model which consists of the stages of analysis, design, development, implementation, and evaluation. In software testing, login tests are carried out, barcode system integration tests with databases, and data processing speed and system resilience tests. The results of the system test showed that the system performed well under varied network conditions, although there was a dependence on network quality that affected the system response time. In addition, barcode scanning distance testing showed that the GM66 barcode reader has an optimal range between 5 cm to 30 cm. System testing also includes a resiliency test to unstable network conditions, where the system can handle connection loss by performing temporary storage and data synchronization after the connection is restored. Overall, the test results show that this system is reliable in managing classroom attendance and security and has the potential to be applied more widely in the campus environment. This research makes an important contribution in improving the efficiency of academic administration and strengthening the campus security system.
IMPLEMENTATION OF INFORMATION SYSTEM FOR ADMINISTRATION AND GEOSPATIAL OF WERNAS VILLAGE IN SOUTH SORONG BASED ON WEBSITE AND ANDROID Novandi Rezeki; Pailus, Muhammad
Jurnal Media Elektrik Vol. 22 No. 2 (2025): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i2.6808

Abstract

This research aims to address the challenges of administration and natural resource management in Wernas Village, South Sorong, Southwest Papua, through the implementation of website-based administrative and geospatial information systems and Android applications. Wernas Village, which is currently still lagging behind in terms of technology, has great potential to develop a modern digital village, especially by utilizing abundant natural resources such as rivers. In order to achieve these objectives, this research uses mixed methods research that combines qualitative and quantitative approaches. The initial stage involved a preliminary study to analyze the needs and challenges of the village, followed by the design of an information system that included website design, Android application, and geospatial mapping.The prototype of the information system was then developed and tested in a limited environment in the village. Evaluation and refinement were carried out based on the results of the trial, with the aim of ensuring the information system was ready for full implementation. The targeted outputs of this research include the design of an information system prototype that is ready to be implemented, mapping of administrative needs and management of village natural resources, as well as improving the quality of public services and administrative efficiency. It is expected that the results of this research can make a significant contribution in improving the quality of life of the people of Wernas Village, accelerating inclusive and sustainable village development, and becoming an example for other villages in the South Sorong Regency area to adopt information technology to advance local development.
TRADOS APPLICATION DEVELOPMENT IN BIRA VILLAGE BASED ON ANROID Ghina Mardhiyah, Fairuz; Imran, Al; T Mangesa , Riana
Jurnal Media Elektrik Vol. 22 No. 2 (2025): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i2.6940

Abstract

The development of the Trados application for tourists visiting the Bira Beach area in Bulukumba Regency aims to streamline the booking process for accommodations, food, and transportation services through an Android-based mobile platform. This research follows a Research and Development (R&D) methodology and utilizes the Waterfall model for systematic application development, encompassing stages such as requirement analysis, design, coding, testing, and maintenance. The study involved interviews and questionnaires with tourists and local service providers to gather data on user needs and preferences. The application was developed using Java programming in Visual Studio Code and tested for functionality, usability, performance efficiency, and portability. Results showed the app meets ISO 25010 standards, with excellent usability (90%), satisfactory performance efficiency, and portability across different Android devices. Despite its success, the study acknowledges limitations such as the small sample size and the lack of real-time booking updates or third-party service integrations. Future research should focus on enhancing the app's functionality and expanding its user base to improve service delivery and user experience in tourism-related applications.
ANALYSIS OF PLTMH POTENTIAL USING CASIMIR HYDROPOWER APPLICATION AT SALOMEKKO DAM Nurul Ulfa; Zulhajji, Zulhajji; Firdaus, Firdaus; Haripuddin, Haripuddin; Yantahin, Muliaty
Jurnal Media Elektrik Vol. 22 No. 2 (2025): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i2.7406

Abstract

This research aimed to: 1) determine the water discharge and head (fall height) at the Salomekko Dam; 2) assess the potential electrical power that can be generated by the micro-hydro power plant (PLTMH) at the Salomekko Dam; 3) identify the type of turbine suitable for the PLTMH based on the water discharge and head (fall height) at the Salomekko Dam in Salomekko District, Bone Regency. The data collection techniques applied are observation, documentation, and interviews. The data analysis techniques used was theoretical power potential calculations by using the Hydropower Casimir software, based on data from relevant agencies, the central statistics agency, and dam management. The results of this study were: 1) the water discharge per year: Q2021 = 16.623 m³/second, Q2022 = 17.787 m³/second, Q2023 = 18.199 m³/second, H = 13.83 meters; 2) the potential electrical power that can be generated by the Salomekko Dam's PLTMH: P2021 = 1804,22 kW, P2022 = 1930,56 kW, P2023 = 1975,28 kW; 3) the Kaplan turbine was the type of water turbine used for power generation at the Salomekko Dam in Salomekko District, Bone Regency, based on the water discharge and head.
WEB-BASED SHIP DATA COLLECTION INFORMATION SYSTEM AT THE PORT OF BENTENG SELAYAR Ma'arief Al Imran, Abdul; Ramadhan, Rafi'
Jurnal Media Elektrik Vol. 22 No. 2 (2025): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i2.7461

Abstract

This research aims to design and test a web-based information system for ship data collection at the Port of Benteng Selayar. This system is expected to improve the performance of the staff of the Class III Port Management Unit of the Selayar Fortress and make it easier for the public, especially residents of the Selayar Islands Regency, to access ship schedule information at the port. This research uses Research and Development (R&D) methods to produce and test the effectiveness of the developed products. The results of the study show that this system is able to replace the manual method previously used in collecting ship data, reduce errors in making reports, and make it easier for the public to access ship schedules. The system test uses the ISO 25010 standard with eight test aspects, where the results show that the developed information system meets excellent quality standards, including aspects of functionality, reliability, performance efficiency, usability, portability, security, compatibility, and maintenance. The system has been tested using WAPT, GTMetrix, and Quttera software, and tested on a variety of different devices and browsers. Based on the results of the trial, this information system is suitable for use by port managers and the community.
BEEF QUALITY DETECTION APPLICATION USING CONVOLUTIONAL NEURAL NETWORK Nurrahman Qishas. H, A.M; Abdul Djawad , Yasser; Suhardi Rahman, Edi
Jurnal Media Elektrik Vol. 22 No. 2 (2025): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i2.7464

Abstract

Beef consumption in Indonesia increases every year, but this high demand triggers traders to cheat by selling meat that is not fit for consumption, such as rotten meat. This endangers public health and raises concerns, such as the case of the discovery of rotten meat in Makassar. To help people recognise the quality of beef, this research develops a beef quality detection application using the Convolutional Neural Network (CNN) method with Edge Impulse Studio. This application was developed using a prototype model and Research and Development (R&D) method at the Electrical Engineering Laboratory of Makassar State University. Tests showed a model accuracy rate of 99% and test accuracy of 99.17%. Evaluation based on ISO 25010 includes four aspects: functional suitability reached 100% according to the validator lecturer, usability with 97% response proportion, performance efficiency with ±85% CPU usage and 83.3 MB memory, and portability which shows the application runs well on various Android versions. Compatibility was tested by running the application simultaneously with other applications, and the results remained optimal. This application provides a practical solution to detect beef quality quickly and accurately, helping people prevent health risks due to consumption of unfit meat.
APPLICATION OF HYBRID SYSTEM OF ENERGY SOURCES IN TEMPE FERMENTATION DEVICE Yulita Dwi Setyaningsih , Noor; Bagus, Mochammad Bagus Putro Wibowo
Jurnal Media Elektrik Vol. 22 No. 2 (2025): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i2.7465

Abstract

Tempeh fermentation tool designed with a hybrid system that combines PLN electricity and solar panels successfully optimizes energy use with a relatively low sensor error value, an average of less than 10%. This system is able to switch energy sources from solar panels to PLN electricity automatically based on the measured voltage, thus minimizing the risk of fermentation process failure. Testing of electricity consumption shows a consistent increase in consumption per hour, with a total power consumption of 1,997 kWh for 22 hours when using PLN electricity. This shows the efficiency and reliability of the tool in supporting the tempeh fermentation process in a more controlled and energy-efficient manner.

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