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All Journal Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics)
Irwan anto Mina
Pendidikan Vokasional Teknik Elektro, UNTIRTA
Energy Materials Science & Nanotechnology Mechanical Engineering Transportation

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SUPPLAY EKSITASI OUTPUT GENERATOR 300 MW MENGGUNAKAN METODE POLA TITIK DAYA REAKTIF Irwan anto Mina; Mokh. Sidqi Fahmi
Journal of Mechanical Engineering and Mechatronics Vol 5, No 1 (2020): JOURNAL OF MECHANICAL ENGINEERING AND MECHATRONICS
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33021/jmem.v5i1.983

Abstract

Excitation system is a system that conducts electric current in the same direction as a generator in a power plant, so that it produces electricity and a large voltage on the increase in the excitation current. In modern regulatory systems, excitation plays an important role in controlling the stability of a development because it involves load fluctuations, so excitation as a controller will require control of the generator output such as voltage, current and power factors in a necessary manner. If the excitation current rises, the reactive power supplied by the system generator will increase otherwise if the reactive power supplied will decrease. If the given excitation current is too small, the reactive power flow will move from the system to the generator so that the generator absorbs the reactive power from the system. This situation is very dangerous because it will cause excessive savings on the stator.Keywords: Generator, excitation system, transformer, rectifier.
SISTEM MAINTENANCE TRANSFORMATOR 60 MVA PADA ELECTRIC ARC FURNACE (EAF) 7 SLAB STEEL PLANT 1 Irwan anto Mina
Journal of Mechanical Engineering and Mechatronics Vol 5, No 2 (2020): JOURNAL OF MECHANICAL ENGINEERING AND MECHATRONICS
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33021/jmem.v5i2.1260

Abstract

Abstract.Preventive Maintenance is every activity undertaken to keep each component tool running in accordance with the expected conditions, through inspection, detection and prevention of total damage that is sudden (breakdown). Breakdown voltage or diode voltage drop is the minimum voltage value at the diode to be able to flow electric current. The research method used is qualitative research with a descriptive approach. In this study, the authors conducted data collection through: (1) direct observation (2) Retrieval of data using the Magger tool (3) literature study. The results of the study stated that in the examination and analysis of dissolved gas content (Dissolved gas analysis, DGA), to prevent the occurrence of: (partial) discharges, thermal failure (thermal faults), deterioration/deterioration of paper insulation/lamination. Insulation Resistance is a test to see the strength of insulation against physical and chemical damage. Damage that often occurs in the EAF 7 transformer is a breakdown voltage and an overheat transformer because the room temperature is not cold due to the transformer close to the cooking place or iron melting. Keywords. BDV, DGA, insulation resistance, maintenance, transformer 
A Colour Perception Detection Model Based on The Spectral Characterictics Irwan anto Mina
Journal of Mechanical Engineering and Mechatronics Vol 4, No 2 (2019): JOURNAL OF MECHANICAL ENGINEERING AND MECHATRONICS
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (701.404 KB) | DOI: 10.33021/jmem.v4i2.856

Abstract

Information needs for one's color perception are needed in the fields of medicine, engineering, astronomy, biomedicine and so on. The demand for accurate assessment of color perception must be met by the perception detection tool used. Ishihara's test, as a perception detection tool that is still used today has insufficient accuracy. This research aims to create a system that can detect a shift in one's color perception, relative to the average color perception of a number of respondents. Through plotting the respondents' perception points, in the CIE coordinate system (Commission International de I'Eclairage) XYZ can be calculated the average euclidean distance, ED, relative to the reference point and the distribution of x and y groups of perception points around the point of reference. Both size, euclidean distance and distribution are used as indicators of average color perception so that an assessment of one's color perception is given based on the results of comparison between color perception points and color perception indicators. The tool used to do the test is Delphi version 7.0 software. the research material used is the RGB (Red, Green, Blue) color image format. The results of a person's color perception study are divided into three levels, namely: (1) "normal" assessment if euclidean (ED) perceptions are smaller than the euclidean (ED) average (2) the "somewhat normal" assessment if the distribution of x and y is smaller rather than the color of perception and the distribution of x and y (3) the assessment is "abnormal" if the color of perception is greater than the max distribution of x and y. A new perception point assessment that is in level one is used to up-date prevailing perception indicators. Up-dating condition constraints affect the quality of the threshold average perception specifically and the quality of the results of the perception detection system in general.
Co-Authors Mokh. Sidqi Fahmi