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All Journal International Journal Science and Technology (IJST)
Tri Nur Arifin
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering

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Design of Electrical Power Transfer Automation System Between PLN, PLTS and Genset Using Relay Sunarto; Tri Nur Arifin
International Journal Science and Technology Vol. 4 No. 2 (2025): July: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v4i2.2251

Abstract

Electrical system use one single source are often vulnerable to disruptions, especially in area with unstable electricity supply. This study presents the development and implementation of an automation system for seamless power transfer management between three primary sources: PLN, PLTS and Genset. The primary objective of this system are to improve electricity supply, optimize renewable use energy, and reduce operational cost. Relay are used as crucial actuator to automatically switch between power source based on pre-set priority logic. When the PLN power source voltage range from 180.3 to 260.2 volt, the automation system immediately switch to the first backup power source, the PLTS, with a voltage range of 220.2 volt. When the PLN and PLTS voltage are 0 volt, the automation system switch to the second backup power source, the genset, with a voltage range of 220.2 volt. If the PLTS and Genset are 0 volt, the system will return to the primary priority source, the PLN, with a voltage range of 220.2 volt. Simulation test results show that the system is afford of detecting power availability and quality from each power source and automatically transitioning power with a fast response time. The implementation of relay ensures effective isolation and reliable switching control.
The Effect of Light Intensity on Electrical Energy Produced by Polycrystalline Solar Panels Falaqi; Tri Nur Arifin
International Journal Science and Technology Vol. 4 No. 2 (2025): July: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v4i2.2252

Abstract

This study analyzes the effect of sunlight intensity on the electrical energy generated by polycrystalline solar panels. The solar power plant system was designed simply and measurements were taken over three days using a lux meter, thermometer, ampere meter, and power meter. Data were analyzed using SPSS through correlation tests and multiple linear regression. The results show that light intensity (lux) has a dominant influence with an average contribution of 68.2% to electrical power. The maximum power recorded was 76 Watts on May 18, 83.3 Watts on June 1, and 85 Watts on June 27, 2025. Other environmental variables such as panel surface temperature, ambient temperature, and humidity also have an influence but on a smaller scale. In conclusion, light intensity plays a significant role in solar panel performance and is a major factor in solar power plant system planning.
Co-Authors Falaqi SUNARTO