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Eko Suprapto
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Fakultas Teknik Universitas Batanghari Jl. Slamet Ryadi, Broni-Jambi Kodepos: 36122
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Journal of Electrical Power Control and Automation (JEPCA)
Published by Universitas Batanghari Jambi
ISSN : -     EISSN : 2621556X     DOI : 10.33087/jepca
Core Subject : Engineering,
Electrical & Electronics Engineering
Journal of Electrical Power Control and Automation (JEPCA) rises 2 (two) times a year which is in June and December. The journal publishes articles of research results, and the articles that are entered should not be the result of plagiarism and have not yet been published elsewhere. The article will be reviewed by the reviewer and the result will be communicated to the author. This journal opens up a huge opportunity for authors who wish to contribute to Journal of Electrical Power Control and Automation (JEPCA). Journal of Electrical Power Control and Automation (JEPCA) covers field of science: Power Distribution Power Electronics Control system Automation Electronics Engineering and Energy Management
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 7 Documents
 1 
Search results for , issue "Vol 4, No 1 (2021): Juni" : 7 Documents clear
Analisis Perencanaan Jarak Celah Udara Pada Generator Axial Syafriyudin Syafriyudin; M Suyanto
Journal of Electrical Power Control and Automation (JEPCA) Vol 4, No 1 (2021): Juni
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jepca.v4i1.48

Abstract

The generator uses a permanent magnet so it does not require initial excitation to generate a voltage. The generator design is axial flux type, uses ceramic type permanent magnet (NdFeB), uses two flanking stator rotors. For electricity use, the AC voltage is changed to DC voltage using a rectifier for charging the accumulator. The air gap in the axial generator is the distance between the rotor and the stator. The air gap is also a place for the transfer of the magnetic field through the coil on the stator to produce a magnetic flux value that affects the induced voltage in the coil. The faster the rotation, the greater the voltage generated. This axial generator that has been designed can produce a frequency of ± 50 Hz, an effective voltage of ± 22 V when the air gap is 2 mm, the frequency measurement has an error of 10-20 Hz and an error percentage of 5-10%, with the results of measuring the induced current that has a large the same voltage.
Analisis Terjadinya Arus Netral Pada Trafo Distribusi 160 kVA Arfita Yuana Dewi; Asnal Effendi; Fahody M Syafar
Journal of Electrical Power Control and Automation (JEPCA) Vol 4, No 1 (2021): Juni
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jepca.v4i1.45

Abstract

The Power distribution in a 3-phase system, cannot be separated from the flow of current in the neutral of the transformer, which will cause power losses (losses) where current flows into the neutral conductor and losses that flow into the neutral conductor. This study was conducted to determine the causes and magnitude of power losses that occur due to the occurrence of neutral current flowing in the neutral conductor in a 160kVA distribution transformer. The research location taken is the Distribution Transformer (G187 T) which is located on Jl. Hos Cokroaminoto Wisma Ombilin where load imbalances often occur. From the results, it can be seen that if the neutral wire has a cross-sectional size of 50 mm2, the current that passes through the neutral wire is 6.4% for the day and for the cross-sectional size of the wire is 70 mm2, it can reduce the power flowing to the neutral by a percentage of 4.77%. for the daytime. Efficiency value that occurs is greater at night that is 94.87% while for the day it is 93.44%. For the distribution of each - each phase, especially the S phase, so that it can be balanced because the power supplied to the S phase is too small. We recommend that the current flowing in the neutral wire must be channeled to the ground so that the current flowing in the neutral wire becomes zero.
Rancangan Bangun Turbin Mikrohidro Tipe Archimedes Screw Dengan Kapasitas Daya 560 Watt Zainuri Anwar; Beta Saud Parsaroan; Edi Sunarso
Journal of Electrical Power Control and Automation (JEPCA) Vol 4, No 1 (2021): Juni
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jepca.v4i1.43

Abstract

The performance of a micro-hydro turbine was influenced by several factors, namely the design and the enviromental. This study aims to obtain the appropriate design parameters for the manufacture of screw turbines. This research was focused on blade dimensions and turbine screw pitch distance. The calculations were performed using several screw turbine fixing formulations. The design results show that the optimum blade diameter and turbine pitch range are 0.213 m and 0.312 m at 0.2 m3 / s of turbine inlet water flow and 563.3 Watt turbine shaft output power. The turbine screw test results of the design were carried out in the river flow of Puri Kedaton Housing, Pematang Gajah Village, Rt 13, Jambi Province. The test results show that the highest turbine power occurs at 30 kg shaft loading with a turbine output power of 445 Watts and an efficiency of 78.9%.
Studi Intensitas Cahaya Matahari Dengan Data Logger Untuk Efektiv Penempatan Panel Surya Asnal Effendi; Arfita Yuana Dewi; Siti Amalia; Dedy Alfianto
Journal of Electrical Power Control and Automation (JEPCA) Vol 4, No 1 (2021): Juni
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jepca.v4i1.44

Abstract

Renewable energy is energy produced from natural sources, such as light, wind, rain, tidal currents, and geothermal, which is renewable or can naturally reappear after being used. In this study, a study of the effectiveness and efficiency of power plants in certain locations. For this reason, it is necessary to design a tool in the form of a data logger that is used to collect parameter data such as light intensity, electric voltage, electric current, power, temperature, humidity, wind speed, and others. The placement of the data logger will help in the basic test of the feasibility of using energy sources later. Data logger is a system that can record automatic parameters of current, voltage, power on solar panels and automatically record conditions of temperature, humidity in the solar panel. The results of logger data on light intensity for a more efficient placement of solar panels occur at location 1 Beach behind Kmpus UBH 1, where at that location has an average light intensity of 798.24 Cd.
Audio/Video Selector 5 Channel dengan Menggunakan Program Mikrokontroler AT89C2051 Mhd Erpandi Dalimunthe
Journal of Electrical Power Control and Automation (JEPCA) Vol 4, No 1 (2021): Juni
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jepca.v4i1.49

Abstract

Audio / Video Selector 5 Channel with Microcontroller AT89C2051 is a tool used to select one of the audio / video electronic equipment such as DVD player, VCD player, Playstation to be activated. This tool uses the AT89C2051 microcontroller which has been programmed as the control center of the 5 channel audio/video selector circuit by pressing the remote as the controller. The input of the device is connected to several electronic equipment and the output is connected to a television set. This tool makes it easy for owners of television sets that only have one A/V jack input.
Analisa Pembangkit Listrik Tenaga Uap Skala Laboratorium Dengan Bahan Bakar LPG Jatmiko Edi Siswanto
Journal of Electrical Power Control and Automation (JEPCA) Vol 4, No 1 (2021): Juni
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jepca.v4i1.46

Abstract

The steam turbine is an initial drive that converts the potential energy of steam into kinetic energy and is subsequently converted into mechanical energy in the form of a turbine shaft rotation, directly or with the help of a reduction gear, connected to the mechanism to be driven. In research to analyze the performance of a steam turbine using LPG gas as fuel. Where in this study using the results of wet steam to move the turbine shaft with variations in pressure (7Bar, 6Bar, 5Bar and 4Bar). So that the maximum result is 7 Bar, the steam mass obtained is 0.09 with a time of 1.5 hours by heating 15 liters of water, the steam power produced is 25.6 Watts, the shaft power is 18.01 Watts and the maximum electrical power produced is 20 Watts. the turbine work efficiency is 78.12% and the result is a generator efficiency of 25%.
Perancangan sistem Pembangkit Listrik Pico Hydro Putaran Rendah Menggunakan Turbin Screw M Suyanto; Syafriudin Syafriudin; Anas Cahyo Nugroho; Prasetyono Eko P; Subandi Subandi
Journal of Electrical Power Control and Automation (JEPCA) Vol 4, No 1 (2021): Juni
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jepca.v4i1.47

Abstract

Kinerja sebuah screw turbine dipengaruhi oleh parameter-parameter yang terkait dalam perancangan screw turbine itu sendiri. Salah satu parameter penting dalam perancangan screw turbine adalah pitch atau jarak periode dari sebuah sudu (blade), sudut kemiringan, putaran dan debit air Kebutuhan akan energi listrik saat ini dirasakan sangatlah penting, baik untuk kebutuhan rumahan, maupun untuk kebutuhan industri yang semakin hari semakin berkembang, sementara unit–unit pembangkit listrik yang ada hampir tidak mengalami peningkatan yang signifikan. Indonesia mempunyai potensi energi terbarukan yang cukup banyak untuk dimanfaatkan salah satunya energi air. Potensi ini belum bisa dimanfaatkan secara optimal karena keterbatasan teknologi turbin dalam memanfaatkan energinya. Untuk head dan debit yang sedang hingga tinggi saat ini masih mengandalkan turbin Pelton, Francis, Kaplan, dan Crossflow. Sedangkan untuk head yang rendah masih sulit untuk dikembangkan, padahal di Indonesia mempunyai potensi yang sangat besar. Dalam pengujian PLTPH menggunakan turbin screw didapatkan hasil tertinggi dengan tegangan 129,2 V AC dengan arus beban tertinggi hingga 0,65 sedangkan ampere generator sebesar 1,79 Ampere yang mampu digunakan untuk beban hingga 180 W pada tegangan 75,5 Volt  AC pada ketinggian air 80 Cm, dan pada keadaan tegangan terendah menghasilkan 80,6 Volt AC dengan ampere beban 0,15 dan Ampere generator sebesar 0,42 Ampere yang dapat dibebani dengan lampu 20 Watt pada ketinggian air 70 Cm.

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