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All Journal Jurnal Sains dan Teknologi Mechatronics, Electrical Power, and Vehicular Technology Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains ICON-CSE Jurnal Pengabdian UntukMu NegeRI JET (Journal of Electrical Technology) Dinamisia: Jurnal Pengabdian Kepada Masyarakat International Journal of Electrical, Energy and Power System Engineering (IJEEPSE) Unri Conference Series: Community Engagement Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
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Universitas Riau
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Sifat Dielektrik Campuran Gas CO2 Dengan Nitrogen (N2) Dibawah Terpaan Medan Tinggi DC Polaritas Positif Michael Anderson; Fri Murdiya
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Sulfur hexafluoride gas (SF6) is widely used in the power electrical system such as circuit breaker, gas insulated switchgear (GIS) and gas insulated line (GIL). However, this gas has negative impacts such as global warming, so we need to find other gases as alternative gas for example is carbon dioxide (CO2) and nitrogen (N2) that it is more friendly environmental materials. This research discusses about dielectric characteristics of mixture of carbon dioxide gas (CO2) and nitrogen (N2) gas under pressure high voltage in positive polarity. This experiment aims to estimate the breakdown voltage in mixture of carbon dioxide gas (CO2) and Nitrogen (N2). This experiment was carried out by using sphere electrodes and needle-rod electrodes. The result is indicated that the breakdown voltage in gas with sphere electrodes is greater than with needle-rod electrodes and then space electrodes are proportional to breakdown voltage in gas insulation.Keywords : electrodes, mixture gas insulation, breakdown voltage, positive polarity
Pengaruh Frekuensi Resonansiterhadappembangkitan Ozon Padadielectric Barrier Dischargeyang Terinduksi Magnet Dan Tanpa Magnet Liho Dachanri Doly; Fri Murdiya
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Ozone is a strong oxidizer consisting of oxygen which can replace chlorine so that it is used to treat wastewater, deodorizing, deinfecting, sterilizing medical devices and eliminating germs. Ozone can be generated by using ultraviolet radiation, optochemical reactions and dielectric barrier discharge (DHF). The most widely used ozone generation technology is dielectric barrier discharge.The power supply tools built are power supply as a PLN voltage rectifier, switch control circuit IC CD4047, push pull inverter circuit, parallel LC resonant circuit and flyback transformer as a voltage to voltage converter high.The resonant frequency of a parallel LC with a constant inductor (L) value of 100mH and a variation of the capacitor (C) value of 150nF, 470nF and 1F. This test also uses permanent magnets above and below the electrode with two conditions, namely attraction and without magnet. The test results show that the even distribution of plasma occured in dielectric barrier discharge (DHF) at a gap of 2mm air gap at a resonant frequency of 41 kHz in two magnetic conditions was attraction and without magnet. Furthermore, the greatest voltage seen occurs in the Ia model (resonant frequency 41 kHz magnetic attraction condition) compared to other conditions with a voltage value of 8.73kV. The highest ozone concentration in this study can be seen in the Ia model of all testing models. The ozone concentration of model IIc (503 Hz resonant frequency without magnetism) had the lowest ozone concentration of all models and conditions. Keyword: dielectric barrier discharge, inverter push pull parallel resonant, plasma, magnetic field, Ozone
Karakteristik Tegangan Tembus AC Pada Material Isolasi Padat Campuran Resin Dengan Alumina (AL2O3) Abdul Rasyid; Fri Murdiya
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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Resin is the polymer material that can be used as high voltage insulators that have high volume resistivity, lighter, high insulation strength and good mechanical strength.Alumina (Al2O3) is one of oxide ceramic that is widely use in the electronic and mechanical material. This research proposes the breakdown voltage test on alumina filler with varies of weight i.e 0.1gr, 0.2gr, 0.3gr, 0.4gr, 0.5gr, 0.6gr, 0.7gr, 0.8gr, 0.9gr, 1gr, 1.1gr, 1.2gr , 1.3gr, 1.4gr, 1.5gr, 1.6gr, 1.7gr, 1.8gr, 1.9gr and 2gr, respectively. The shape of dimension sample is presented in 2x2x2cm with two electrode (needle and plane electrode) inside alumina and resin 0,5cm gap.Keywords –resin, alumina (AL2O3), discharge current, breakdown voltage
Sistem Proteksi Petir Eksternal Pada Gedung Baru Fakultas Teknik Universitas Riau Hotdin Peterson A; Fri Murdiya
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The new building of Engineering Faculty at Riau University is one of the development planning that was by Riau University. It needs external lightning protection system to protect the building from direct lightning strike. For the protection, it has been designed an external protection system using the method of collecting volume. From the result of the calculation of external protection system with the angle of 0° and the peak current of lighting 60 kA, it was found out that the distance of the strike was rs123,58 m , the value of radius lighting protection was Δmax was 72,6 m, the value of collecting volume was Vcoll 1059990,46 m3 , and the value of lighting protection zones was 0s 76,82° .Keywords : lightning protection system,collection volume method
Karateristik Tegangan Tembus Gas Argon (Ar) Dengan Tegangan Tinggi Arus Bolak-Balik M Javad Faruqi; Fri Murdiya
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

In electric power systems, there are many aspects that must be considered for its operation that is, conductors, insulators, and other electrical system equipment. Especially on insulators, good insulation quality is required to ensure reliability and quality of electric power distribution to consumers. In industrial gas insulation is often used because of its dielectric strength is greater than the other isolation. In general the gas insulation used SF6, N2, and CO2 has good dielectric strength. In this study, the author tries to test the isolation of another alternative gas that is in the form of argon gas. In the test of this research aims to enrich the treasury of the data from testing the penetrating tension with argon gas isolation and as a preliminary study of argon gas isolation in the test of penetrating voltage with high-voltage AC. Tests conducted using variations of electrodes and gas pressure as much as 20 times the test so that the results obtained in the form of breakdown voltage and air correction factor. Keywords: Argon, Electrode, Breakdown Voltage, High Power Plant AC, Air Correction Factor
Karakterisasi Dan Potensi Buangan Akhir Pengolahan Pome Menjadi Air Baku Dzaki Furqoon; David Andrio; Fri Murdiya
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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POME final discharge is a problem for the palm oil industry at this time because it does not reach the predetermined quality standards and can damage life in aquatic biota. This study aims to determine the characteristics of POME final discharge and to analyze the potential treatment methods for Chemical Oxygen Demand (COD) removal in POME final discharge using the ozonation method. The results showed that the concentrations of COD in POME final discharge were 290.9 mg / L. Duration of contact time in the ozonation method could affect the removal of COD in the POME final discharge. Keywords: POME final discharge, Ozonation
Analisis Kinerja Proteksi Petir Pada Saluran Transmisi Tenaga Listrik Menggunakan Pemrograman Python Rofi Hariadi; Fri Murdiya
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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One of main causes of interruption of electrical power supply is the lightning strike on overhead power transmission lines. The lightning performance of transmission line can be determined by value of shielding failure flashover rate (SFFOR) and back flashover rate (BFOR). The object of this study is to create a computer application to compute lightning performance on the transmission lines using Python programming. Pythons package tkinter used for program interface window. Application programming is done by using the concept of Object Oriented Programming (OOP) using Pythons keyword class. Validation shows that the application has applied the method correctly with a percentage error 0 % for SFFOR and 0,344 % for BFOR. The application can do analysis on the factors that affecting SFFOR and BFOR such as the effect of thunder day, tower foot resistance, and number of isolator disks. The results obtained in this study is computer application that can perform lightning performance analysis and analysis of factors that can affect it, such as thunder day, tower foot resistance and the number of isolator disks. Keywords: BFOR, lightning performance, OOP, overhead transmission line, Python, SFFOR, tkinter
Analisa Pemasangan Insulator Pada GSW/Kawat Tanah Tower Transmisi 150 KV Di PT PLN (Persero) P3B Sumatera Cecep Zaenal Mutaqin; Fri Murdiya
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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Abstract

PT. PLN (Perseo) P3BS is part of PT PLN (Perseo) which specializes in high voltage and extra high voltage Overhead Line Transmission in Sumatera Island. Overally PT PLN P3BS has several assets of transmission i.e transmission tower with total of 20.110 units. Most of towers high between 30-46 meters. However, many line outage because frome lightening strike to Overhead Line Transmission. The Sumatra island position in the tropical zona which is prone to suffer from lightning strike.The installation or modification of lightning protection need to improve the reliability of transmission from lightning strike. PT PLN (Persero) P3BS has been done several ways to minimize the disturbance caused by lightning strike, such as by modifying GSW in order to have self grounding and insulated to the tower.Study has been done to knowing information about advantages or disadvantages in the utilizing of insulators on GSW simulated using ATP-Draw, normal simulation and modified GSW simulation. Then, both models are exposing to the lightening impulse voltage with the amplitude of 10 kA to 200 kA respectively.The modified GSW earth grounding system with the addition of insulators provides more resistance to the back flashover on the insulators lines and the reliability is increased. In the end, this modified GSW will get the effective value when it is attached to the tower coordinates which have high lightening potensial.Keywords : high voltage and extra high voltage Overhead Line Transmission, lightning density, lightning impulse voltage, GSW, ATP Draw.
Perancangan Dan Aplikasi Pembangkit Plasma Tegangan Tinggi AC Menggunakan Dual Flyback Transformer Topologi Inverter Push-Pull Faisal Setiawan; Fri Murdiya
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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In this study, a laboratory-scale prototype of high-voltage plasma generator has been realized. This generator intends to have the capability to employ corona plasma which is used as an application medium for the decomposition of coconut shell waste carbon material into graphene. The design of the high voltage generator prototype is divided into three main parts, the first isa full wave rectifier with a 12 volt CT used as a unidirectional power supply in the inverter driver control circuit, and the design of a switch module power supply (SMPS) prototype with adjustable voltage 0-50 volts are used as the unidirectional input voltage in the push-pull inverter power circuit. Furthermore, the second is the inverter control circuit using the TL494IC as a MOSFET triggering frequency oscillator driver, and using a pulse transformer isolator as an electrical isolator as asafety between the control circuit and the power circuit in the push-pull inverter, and the third is the inverter power circuit design on the This research is designed with a push-pull inverter topology using a MOSFET as an alternating current switching electronic switch. This device operates when connected to a ferrite core TV Flyback Transformer which is able to work at high frequencies with a winding ratio 1 : 75 as a fast transformer to raise it to a high voltage with a plate-rod electrode configuration. The success of the corona plasma appearance depends on the voltage and electric currents, as wellas the distance between the electrodes. Meanwhile, the amount of plasma discharge stress on the carbon material is directlyproportional to the success of producing graphene. The higher the exposure of the plasma discharge stress to the carbon material, the greater the success of producing graphene. Tests carried out by varying the input voltage of the inverter from 9,0 volt, 13,9 volt and 19,5 Volts AC. Based on the results of the Transmission Electron Microscope (TEM) test, the best resultsfor the formation of graphene structures are the inverter voltage variation of 19,5 volts AC for 5 minutes and the electrodedistance of 10mm with the highest voltage of 2,77 kV at 54,82 kHz.Keyword : Push-Pull, Flyback TV Transformer, graphene
Karakteristik Tegangan Tembus Dielektrik Isolasi Vakum Tommy Rizky Krisnadi; Fri Murdiya
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The sulfur hexafluorida (SF6) is the best insulators for high voltage. However, SF6 has a very serious problem for the environment that this gas has make a big contribution for global warming. Of course, the study of other insulators is necessary to get the efficient insulation than SF6. Required alternative insulation gases such as carbon dioxide (CO2), nitrogen (N2) or vacuum insulation. From experiment testing with needle electrodes and sphere electrodes for vacuum pressure on -100 mmHg, -150 mmHg, -250 mmHg and -500 mmHg, respectively show the breakdown voltage is lowest than to the air pressure insulation. Then, the data from the study also found that the vacuum breakdown voltage is smaller than air. The use of linear method can show the vacuum breakdown voltage is inversely proportional to the air. But vacuum breakdown voltage is directly proportional to the distance between the needle electrode or sphere electrode.Key words: vacuum insulation, linear method, breakdown voltage
Co-Authors Abdul Rasyid Aldi, Robi Amir Hamzah Amun Amri Antonius Rajagukguk Ari Sandhyavitri Azriyenni Azhari Zakri Bella Novita Dona Cecep Zaenal Mutaqin Cecilia Stevany Chandra, Andre David Andrio Devita Amalia Dzaki Furqoon Ery Safrianti Faisal Setiawan Febrizal Ujang Feranita Feranita Firdaus Firdaus Firdaus Firdaus Firdaus Firdaus Sutan Ginting, Rio Abraham Hamdani, Eddy Hardani, Nanda Hardiwika, Ericko Hariadi, Rofi Havel Alindo Sano Havel Alindo Sano Heni Pujiastuti Hotdin Peterson A I Gusti Bagus Wiksuana Liho Dachanri Doly Linna Oktaviana Sari Luchman Wira Admaja M Javad Faruqi Mangapul, Toni Maradongan, Maradongan Meliana Meliana Michael Anderson Muhammad Rafi Epafras nadeak, Parade Neni Frimayanti Noviansyah Noviansyah Novri Andrean Nurhalim Dani Ali Nurhalim Nurhalim Oky Kurniawan Panjaitan, Handerson Pardede, Tumpal Pedia Aldy Rendy Kamerlisa Putra Riski Febriyursandi Rizal, Ghane Sha Rofi Hariadi Rosma, Iswadi Hasyim Rossi Passarella Rudi Setiawan Sano, Havel Alindo Saputra , Ivan Shifa Rayni Efendi Stevanny, Cecillia Stevany, Cecilia Sulistianto, Agus Ernawan Suwitno Tommy Adrian Sinaga Tommy Rizky Krisnadi Yan Habibillah Pesa Yansyah Prasetyo Yusnita Rahayu