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Studi Kelayakan Pengoperasian Lanjut Transformator Daya Berdasarkan Sisa Umur Isolasi Menggunakan Pendekatan Arrhenius Muhammad Ikhsan; Tarmizi Tarmizi
CIRCUIT: Jurnal Ilmiah Pendidikan Teknik Elektro Vol 2, No 1 (2016)
Publisher : PTE FTK UIN Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/crc.v2i1.761

Abstract

Peralatan sistem tenaga seperti transformator daya memiliki umur desain yang ditentukan oleh oleh perusahaan manufaktur sehingga dapat beroperasi dalam kurun waktu tertentu. Namun sejalan dengan pemakaiannya dilapangan, umur transformator daya tersebut dapat berkurang atau bertambah dari umur desainnya. Paper ini mempaparkan perhitungan sisa umur transformator tua (aging) menggunakan pendekatan Arrhenius yang didasari oleh temperatur saat pemeriksaan lapangan dari beberapa kali inspeksi pada tahun 1982, 2013, dan 2014. Transformator yang diukur dalam studi ini memiliki rating 30 MVA dan digunakan pada lingkungan kilang gas alam cair. Berdasarkan perhitungan yang telah dilakukan, diketahui bahwa transformator tersebut masih layak untuk dioperasikan hingga 17,8 tahun lagi dengan mengikuti syarat dan ketentuan yang berlaku. Sebagai pendukung keputusan, pemeriksaan eksternal secara visual dan pengukuran earth grounding juga dilakukan. Kata kunci:
Electrification Status of Alue Keujrun Village and Kluet River Hydrokinetic Energy Potential: A Survey Report Muhammad Ikhsan; Nuzuli Fitriadi
CIRCUIT: Jurnal Ilmiah Pendidikan Teknik Elektro Vol 5, No 2 (2021)
Publisher : PTE FTK UIN Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/crc.v5i2.9741

Abstract

This paper provides survey results of an electricity system that has been carried out from isolated village of Alue Keujrun, South Aceh, Indonesia. The village has a central photovoltaic power plant and a micro hydro power plant. Various problems in the field such as operation errors, lack of maintenance of the electric power system, low voltage and frequency have been found. Power plant operators have also never received any formal training from any institution. The village is located next to the Kluet river which has a very large potential to become a hydrokinetic power plant energy source. Therefore the Kluet river flow velocity was also measured during the survey and described within this paper. Based on the interviews results with local operators, the village power plant does not have an operating permit. Thus, we consider that it is important to review the types of permits required to establish a power plant in Indonesia, including small-scale power plants.
Power Control Study of Hydrokinetic Power Plants in presence of Wake Effect Muhammad Ikhsan; Muhammad Rizal Fachri
Circuit: Jurnal Ilmiah Pendidikan Teknik Elektro Vol 7, No 1 (2023)
Publisher : PTE FTK UIN Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/crc.v7i1.14650

Abstract

Hydrokinetic power plants are able to produce energy only by harnessing the kinetic energy of flowing water. Compared to dam-based hydroelectric power plants, hydrokinetic power plants have minimal impact on several issues e.g. environmental, health, social and political conflict. Similar to wind turbines in a wind farms, hydrokinetic turbines in tidal farms also generate a wake effect, which results in less kinetic energy on downstream turbines compared to upstream turbines. This article shows the simulation results of three hydrokinetic power generation systems installed in series on the same water stream such as river or aqueduct. The upstream turbine generates wake effect and resulting a velocity deficit both in the two downstream turbines. Bastankhah Porté-Agel model for wake effect was used in this study. The simulation results show that the downstream turbine cannot maintain the given voltage reference and loses the stability of the power control if the water velocity decreases. Several recommendations regarding series configuration of the hydrokinetic system are also presented in order to support the control stability.
Teknik Reduksi Energi pada Perancangan Data Logger Parameter Matahari M. Ikhsan; Yuwaldi Away
Jurnal Rekayasa Elektrika Vol 11, No 1 (2014)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (825.542 KB) | DOI: 10.17529/jre.v11i1.1993

Abstract

The research discusses about the energy saving techniques in the design of data logger devices based on AVR microcontroller for monitoring parameters of the air temperature and sunlight intensity in the visible light spectrum. These energy reduction techniques include hardware aspects such as the use of the minimum system, peripherals power supply control and software such as sleep-mode. When the intensity of sun light increases, the interrupt pin will activate the system, otherwise the system is in a state of sleep-mode. The electrical energy consumption of the data logger is continuously observed and recorded on an external memory (SD card) in real-time as so the 24 hours energy consumption can be known and the long-term-used energy can be predicted. Based on the results of measurements and calculations it is known that it takes energy of 8.23 Wh to turn the data logger for 24hours. With this reduction technique, the data logger energy consumption can be reduced by 68.5%.Keywords: data logger, energy saving, sun, sleep mode, interrupt
Perancangan Lengan Robot 5 Derajat Kebebasan Dengan Pendekatan Kinematika - Firmansyah; Yuwaldi Away; Rizal Munadi; Muhammad Ikhsan; Ikram Muddin
Jurnal Rekayasa Elektrika Vol 11, No 2 (2014)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2724.541 KB) | DOI: 10.17529/jre.v11i2.2309

Abstract

This study discusses the design of arm robot model with 5 degree of freedom that is designed to be a small-scale model of the articulated robot industry to simulate the movement of the robots industry. The objective of this research is to build a real arm robot based on kinematic aspects with the movement of waist, shoulder, elbow, wrist pitch, wrist roll and gripper, and to analyze the robot movement. The design includes building the real arm robot based on Arduino Uno board controller and the movement of the robot using servo motor DC. The robot  can be controlled automatically from the computer with the RS-232 or USB port interface and it learns about the kinematic of the robot’s arm when an experiment on the forward kinematic is accomplished. The robot was running well, with the maximum distance that can be reached by the robot on the coordinate axis  x = 425 mm, y = 425 mm and  z = 480 mm.
Design an Electrical Power Practical Module in the Introductory Electrical Energy Course Nursarinah Manullang; Fathiah Fathiah; Muhammad Ikhsan
JURNAL EDUNITRO Jurnal Pendidikan Teknik Elektro Vol. 4 No. 2 (2024): October Issue
Publisher : Department of Electrical Engineering Education, Faculty of Engineering, State University of Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/edunitro.v4i2.8448

Abstract

The introductory electrical energy course is one of the courses that applies learning using practical methods. In the introductory electrical energy course, there is material about electrical power. Based on observations, it is known that students need more learning media in the form of modules in the electrical power practicum, which causes a lack of interest and low understanding of student learning. Based on these problems, a learning medium in the form of a practicum module was developed to complement practicum learning and is expected to increase students' interest in and understanding of learning. The electrical power practicum module was developed using research and development methods. The researcher's research instrument was a media expert and material expert validation sheet to test the feasibility of the practicum module to be applied in the Electrical Power Practicum. The validation results of media and material experts prove that the electrical power practicum module is very feasible regarding media and material. Based on the percentage of scores obtained from media experts, namely 81.66%, material experts obtained a score of 88.57%, which is included in the very suitable category to be applied in the Basic Electrical Energy course.