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All Journal Transmisi: Jurnal Ilmiah Teknik Elektro Jupiter International Journal of Research in Vocational Studies (IJRVOCAS) Medika Trada
Yonki Alexander Volta
Politeknik Negeri Sriwijaya
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Battery Analysis in Off Grid Solar Power Plant as A Power Source for AC Motor Automatic Coffee Roaster Machine Capacity 20 Kg Nurhaida; Susanti, Indah; Volta, Yonki Alexander; Muzakki, M Hafiz
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 4 No. 2 (2024): IJRVOCAS - August
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v4i2.258

Abstract

Solar power plants that utilize solar energy to be converted into electrical energy have several advantages compared to other power plants, namely that they do not produce air pollution, are available continuously and are available everywhere. Coffee is a commodity in the world that is cultivated in more than 50 countries. Two species of coffee trees that are generally known are Robusta Coffee and Arabica Coffee. Processing coffee before consumption goes through a long process, namely from harvesting coffee beans that are ready to harvest. Then proceed with drying before roasting. Coffee roasting machine that uses an AC motor. The motor gets a DC power source from a solar power plant then the inverter changes the DC voltage to AC. This coffee roasting machine is equipped with IoT to control the motor rotation remotely and monitor the temperature. The battery has the function of storing electrical energy produced by solar panels in the form of direct current energy. The energy stored in the battery functions as a backup, which is usually used when the solar panels do not produce electrical energy. The greater the capacity of the battery used, the longer the battery can back up the load used.
SIMULASI KOORDINASI PROTEKSI SISTEM TENAGA LISTRIK MENGGUNAKAN ETAP Utami, Pertiwi Nurul; Volta, Yonki Alexander; Fatin, Muhammad Hanif
MEDIKA TRADA Vol 5 No 1 (2024): MEDIKA TRADA (JTEMP) Vol 5 No 1 (2024)
Publisher : LPPM POLBITRADA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59485/jtemp.v5i1.52

Abstract

The electric power system must be very reliable, both in the aspects of generation, transmission and distribution. In this way, continuity of the electrical power supply to consumers can be guaranteed. One way that can be taken is to pay attention to the protection of the electric power system itself. This research aims to determine whether the coordination of electrical power system protection equipment is optimal or not. In this research, the method applied is simulation using the ETAP (Electric Transient Analysis Program) application. The process includes creating a power system circuit then applying several disturbances to the power system, then observing the existing protection equipment and analyzing system power data, disturbances, and electrical power protection equipment. This analysis is carried out by paying attention to the working order of the protective equipment during several disturbances and also the working time of the protective equipment. Coordination of power system protection equipment works well. In the simulation system according to the order of work, namely fuse, recloser and circuit breaker (CB). The last sequence of protective equipment that works is CB which has been set at 0.2 seconds. In each fault simulation, the first protection device to work is the fuse at 10 ms. If there is a security failure by the fuse, the recloser will work in 110ms seconds
Sistem Monitoring Kontrol Kecepatan Motor 3 Phase Berbasis Internet Of Thing (IoT) Volta, Yonki Alexander; Nofiansah; Herman Yani; Fadil Asnani; Carolina, Yuni; Hidayat, Risqy
JUPITER (Jurnal Penelitian Ilmu dan Teknologi Komputer) Vol 17 No 2 (2025): Jurnal Penelitian Ilmu dan Teknologi Komputer (JUPITER)
Publisher : Teknik Komputer Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.16946200

Abstract

Three-phase induction motors are widely used in industry due to their reliability and efficiency. However, manual speed control systems limit flexibility and operational efficiency. This study aims to design a three-phase motor speed monitoring and control system based on the Internet of Things (IoT) by integrating an ESP32 microcontroller and a Variable Speed Drive (VSD). The system is controlled in real time using two applications: Blynk for control and Smart Life for power monitoring. Testing was carried out by varying the frequency from 10 Hz to 50 Hz, observing voltage, current, and motor rotational speed (RPM). The results show that an increase in frequency is directly proportional to the increase in motor speed, with a detected current imbalance between phases, indicating the need for additional protection. The system demonstrates precise, responsive control and is feasible for automation in small to medium-scale industries.
SISTEM KENDALI KECEPATAN MOTOR INDUKSI TIGA FASA MENGGUNAKAN VSD BERBASIS HMI PLC OMRON CP1E N40 Volta, Yonki Alexander; Suyadi, Andri; Firmansyah, Anton; Fadly, Imam
Transmisi: Jurnal Ilmiah Teknik Elektro Vol 27, No 4 Oktober (2025): TRANSMISI: Jurnal Ilmiah Teknik Elektro
Publisher : Departemen Teknik Elektro, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/transmisi.27.4.209-215

Abstract

Motor induksi tiga fasa merupakan komponen penting dalam berbagai aplikasi industri karena konstruksinya yang sederhana, daya tahan tinggi, dan biaya pemeliharaan yang rendah. Namun, pengendalian kecepatan motor ini masih menjadi tantangan, terutama pada kondisi beban variabel yang membutuhkan efisiensi dan fleksibilitas tinggi. Penelitian ini bertujuan untuk merancang dan mengimplementasikan sistem kendali kecepatan motor induksi tiga fasa berbasis Variable Speed Drive (VSD) yang dikendalikan oleh PLC Omron CP1E N40, dengan dukungan antarmuka Human-Machine Interface (HMI) sebagai media pemantauan dan pengaturan. Sistem dirancang untuk beroperasi dalam dua mode, yaitu manual dan otomatis, yang dikendalikan melalui komunikasi serial RS-485. Hasil pengujian menunjukkan bahwa sistem mampu menjaga kecepatan motor dengan presisi, dengan rata-rata slip sebesar 4,88% pada mode manual dan 2,08% pada mode otomatis. Pengurangan slip ini menghasilkan peningkatan efisiensi energi sebesar ±2,94%. Selain itu, kesesuaian antara nilai kecepatan hasil pengaturan dengan tampilan pembacaan pada HMI menunjukkan bahwa sistem bekerja secara stabil dan terintegrasi. Temuan ini menunjukkan bahwa sistem yang dikembangkan dapat menjadi solusi praktis dan efisien untuk pengendalian kecepatan motor di industri skala kecil hingga menenga.
Co-Authors AA Sudharmawan, AA Carolina, Yuni Fadil Asnani Fadly, Imam Fatin, Muhammad Hanif Firmansyah, Anton Herman Yani Hidayat, Risqy Indah Susanti Muzakki, M Hafiz Nofiansah Suyadi, Andri Utami, Pertiwi Nurul