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ANALISIS GANGGUAN PETIR AKIBAT SAMBARAN LANGSUNG PADA SALURAN TRANSMISI TEGANGAN EKSTRA TINGGI 500 kV Abduh, Syamsir; Septian, Angga
Jurnal Teknik Elektro Vol 8, No 2 (2009)
Publisher : Jurnal Teknik Elektro

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Abstract

This paper summarizes the main results of a study aimed to figure the specific distortion and several factors that decreased the distortion. Lightning performance were combined between the distortion cause by shielding failure and back flashover, it using electro-geometrical and traveling wave theory. The result shows that increasing effectivity of ground wire shielding where the lightning is hitting phase wire which is definite by shielding angle, and preventing back flashover with minimum tower foot resistance and increasing coupling factor between ground wire and phase wire. Keywords: Lighning, ground wire, shielding
ANALISIS SAMBARAN PETIR PADA TIANG TRANSMISI DENGAN MENGGUNAKAN METODE LATTICE Abduh, Syamsir
Jurnal Teknik Elektro Vol 1, No 2 (2002)
Publisher : Jurnal Teknik Elektro

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Abstract

Power systems are often subjected to overvoltages that have their origin in atmosphericdischarges in which case they are called external or lightning overvoltages. Ligthningovervoltages remain essentially independent of the system’s design such as transmissionstower. Owing to the complexity of a the lightning phenomenon, simulation experiment hasbeen an important method to resolve such phenomenon. However, it is difficult to simulatethe distribution of lightning striking points. Previous lightning simulation expriment can’twell reflect the influence of lighning strength and direction on striking. The paper presentsthe Lattice Method to analyze lightning phenomenon strength especially for the transmissiontowerKeyword: lightning phenomenon, lattice method, transmission tower.
PENGUJIAN KABEL TEGANGAN TINGGI XLPE DENGAN MENGGUNAKAN TEKNIK AFTER LAYING Abduh, Syamsir
Jurnal Teknik Elektro Vol 4, No 1 (2004)
Publisher : Jurnal Teknik Elektro

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Abstract

Power system equipment must withstand not only the rated voltage which corresponds to thehighest voltage of a particular system but also over-voltages. Accordingly, it is necessary totest high voltage equipment stage and prior to commissioning. The magnitude and type oftest voltage varies with the rated voltage of particular apparatus. The standard methods ofmeasurement of high voltage and the basic techniques for application to all type ofapparatus for alternating voltage, direct voltage, partial discharge (well known as afterlayingtest) are aid down in the relevant application such as XLPE underground cable.Keywords: After Laying, XLPE Cable
BOLA PETIR SEBAGAI BENTUK PELEPASAN MUATAN LISTRIK: SUATU KAJIAN TEORITIKAL Abduh, Syamsir
Jurnal Teknik Elektro Vol 2, No 1 (2002)
Publisher : Jurnal Teknik Elektro

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Abstract

In order to understand the atmospheric or lightning surges it would be important tounderstand the theory behind lightning.. This paper presents a review of literature of balllightning as a discharge phenomenon. It is assumed that ball lightning is produced andsustained by the electric fields associated with charges from a lightning strike dispersingalong preferred conducting paths in the earth. The theory gives an explanation of theformation, lifetime, energy sources and motion of a ball lightning.Keywords: ball lightning, lightning strike, discharge phenomenon
PROTEKSI PETIR PADA TRANSISI SALURAN UDARA DAN BAWAH TANAH TEGANGAN MENENGAH 20 kV Irianto, Chaerul Gagarin; Abduh, Syamsir
Jurnal Teknik Elektro Vol 2, No 2 (2003)
Publisher : Jurnal Teknik Elektro

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Abstract

This paper summarizes the main results of a study aimed at determining the maximumlightning overvoltages in branchless underground feeder protected by metal-oxide arresters.The study has two parts. Initially, it is performed assuming an ideal behavior of allcomponents: the goal is to gain insight into the physical phenomenon. This will be useful tounderstand the main results obtained in the second part, where an advanced model is usedfor representing arresters.Keywords: Lightning, Surge Arresters, Underground Cables
ANALISIS DESAIN SISTEM GRID PENTANAHAN PLTU BERAU KALIMANTAN TIMUR 2 X 7 MW Syamsir Abduh; Mulia Sulistiani
Jetri : Jurnal Ilmiah Teknik Elektro Jetri Volume 11, Nomor 2, Februari 2014
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (696.571 KB) | DOI: 10.25105/jetri.v11i2.1447

Abstract

To be able to secure and safety the equipment and the workers who work in the power plant area Berau 2 x 7 MW, of course, required the earthing system design quality, reliable and efficient whereby the grounding grid resistance, voltage step and touch voltage according to the calculations contained in IEEE Std 80 -2000. This research will discuss the evaluation of system design with respect to the value of earthing resistance grounding grid, mesh voltage and step voltage. Evaluation parameters - parameters according to calculations published in IEEE Std 80-2000. Results from this study is the need for improvements to the design value of the voltage step and touch voltage is actually one - each 219.03 V and 383.29 V, which is greater than the voltage step and touch voltages are allowed each - amounting to 164.86 V for weight 50 kg; 223.13 V for weights 70 kg and 128.21 V to weight 50 kg; 173.53 V to 70 kg weight. Keywords: grounding system, touch and step voltage, conductor areaSistem  pentanahan  yang  berkualitas,  handal  dan  efisien adalah merupakan  persyaratan utama dalam merancang suatu  sistem pentahanan untuk dapat mengamankan peralatan dan para pekerja di area pembangkit. Makalah ini bertujuan untuk menganalisis desain Grid Pentanahan  PLTU Berau 2x7 MW oleh Konsultan Perencana berdasarkan metode  IEEE Std 80-2000. Analisis dilakukan terhadap  beberapa  parameter  berupa  luas  penampang  konduktor,  nilai  tahanan  grid  pentanahan  tegangan sentuh dan tegangan langkah.  Hasil dari penelitian menunjukkan bahwa  perlu adanya perbaikan desain dengan nilai tegangan langkah dan tegangan sentuh sebenarnya masing – masing 219,03 V dan 383,29 V, yang lebih besar dari tegangan langkah dan tegangan sentuh yang diperbolehkan masing – masing sebesar 164,86 V untuk bobot 50 kg; 223,13 V untuk bobot 70 kg dan 128,21 V untuk bobot 50 Kg;173,53 V untuk bobot 70 Kg. Kata kunci: Grid  pentanahan,  Tegangan  langkah,  Tegangan   Sentuh, Luas   penampang konduktor
PERANCANGAN SISTEM PENTANAHAN GAS INSULATED SWITCHGEAR 150KV PULOGADUNG DENGAN FINITE ELEMENT METHOD Jamaluddin Kamal; Syamsir Abduh
Jetri : Jurnal Ilmiah Teknik Elektro Jetri Volume 15, Nomor 2, Februari 2018
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (814.251 KB) | DOI: 10.25105/jetri.v15i2.2087

Abstract

The purpose of this research is to design Grid-Rod earthing system on Gas Insulated Switchgear (GIS) 150 kV Pulogadung based on IEEE Std. 80-2000. IEEE Guide for Safety in AC Substation Grounding uses Finite Element Method (FEM) to secure  people and equipment around substation. By changing some configurations based on initial design, the section I grid size that will be applied are 7 x 4 meters with the number of parallel conductor in its length and width’s side are nx= 7 and ny= 10. The section II grid size are, 7 x 7 meters with the number of parallel conductor in its length and width’s side are nx= 3 dan ny= 5. Grid depth is  0.8 meters from the ground surface and the number of 3 meters earthing rod used are 14 pieces. This design results for grounding resistance is 0.112 Ohm, touch voltage is 642.5 Volts and step voltage is 433.8 Volts which have met the safety standard of IEEE Std. 80-2000. Keywords: Finite Element Method, grounding system, substation Penelitian ini bertujuan untuk merancang sistem pentanahan Grid-Rod pada Gas Insulated Switchgear (GIS) 150 kV Pulogadung berdasarkan IEEE Std. 80-2000. IEEE Guide for Safety in AC Substation Grounding menggunakan Finite Element Method (FEM) untuk mengamankan peralatan dan orang yang ada di sekitar gardu induk. Dengan mengubah beberapa konfigurasi berdasarkan rancangan awal, sistem pentanahan Grid-Rod yang memenuhi standar aman adalah dengan ukuran grid bagian I sebesar 7 x 4 meter dengan jumlah konduktor paralel pada sisi panjang dan lebarnya adalah nx= 7 dan ny= 10 dan grid bagian II sebesar 7 x 7 meter dengan jumlah konduktor paralel pada sisi panjang dan lebarnya adalah nx= 3 dan ny= 5. Konduktor ditanam sedalam 0,8 meter dari permukaan tanah dan jumlah batang pentanahan dengan panjang 3 meter yang digunakan sebanyak 14 buah. Desain ini menghasilkan nilai tahanan pentanahan sebesar 0,112 Ohm, tegangan sentuh sebesar 642,5 Volt dan tegangan langkah sebesar 433,8 Volt dimana telah memenuhi standar aman IEEE Std. 80-2000.  Kata kunci: Finite Element Method, sistem pentanahan, gardu induk
ANALISIS ARC FLASH 6,3 KV PT HOLCIM INDONESIA TBK. BOGOR, JAWA BARAT Juliansyah Kennedy Sugiharto; Syamsir Abduh
Jetri : Jurnal Ilmiah Teknik Elektro Jetri Volume 16, Nomor 1, Agustus 2018
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (792.63 KB) | DOI: 10.25105/jetri.v16i1.2939

Abstract

Protection system is a safety system on electrical equipment in case of interference. One of the electrical hazards is the arc flash. According to IEEE 1584-2002 arc flash is a blast of heat, hot gas, and liquid metal caused by short circuit interference on the equipment. There are 3 cases of arc flash that occurred in PT Holcim Indonesia Tbk. Bogor, West Java. The aim of this research is to find out the amount of arc flash energy in accordance with IEEE 1584-2002 standard, to know how much the energy, and also to classify Personal Protective Equipment (PPE) category for the workers according to NFPA 70E-2009 standard. This study was applied to the 5th mill finishing area at PT Holcim Indonesia Tbk. Bogor, West Java. The results showed on the area of the Finish Mill 5 the value of the energy incident is 16.92 cal/cm2 on BUS MD-1, 1.39 cal/cm2 on BUS RM-1, 1.35 cal/cm2 on BUS FN-2, 2.17 cal/cm2 on BUS TR-71, 1.41 cal/cm2 on BUS TR-72, and 1.34 cal/cm2 on  BUS TR-73. Sistem proteksi merupakan suatu sistem pengaman pada peralatan listrik jika terjadi gangguan. Salah satu bahaya listrik  adalah  arc flash. Menurut IEEE 1584-2002 arc flash merupakan ledakan panas, gas panas, dan logam cair yang diakibatkan oleh gangguan hubung singkat (short circuit) pada peralatan. Terdapat 3 kasus arc flash  yang terjadi di PT Holcim Indonesia Tbk. Bogor, Jawa Barat. Penelitian ini bertujuan untuk mengetahui besar energi arc flash yang sesuai dengan standar IEEE 1584-2002, untuk mengetahui besar energi serta mengklasifikasi kategori Personal Protective Equipment (PPE) bagi pekerja sesuai dengan standar NFPA 70E-2009. Studi ini diterapkan  pada area Finish Mill 5 pada PT Holcim Indonesia Tbk. Bogor, Jawa Barat. Hasil penelitian menunjukkan pada area Finish Mill 5 nilai insiden energinya yaitu  16,92 kal/cm2 pada BUS MD-1, 1,39 kal/cm2 pada BUS RM-1, 1,35 kal/cm2 pada BUS FN-2, 2,17 kal/cm2 pada BUS TR-71, 1,41 kal/cm2 pada BUS TR-72, dan 1,34 kal/cm2 pada BUS TR-73.
A Perancangan Prototipe Monitoring Ketinggian Air Berbasis IoT Menggunakan Panel Surya Sebagai Sumber Energi Listrik Sari, Tyas Kartika; Novita, Dianing; Abduh, Syamsir; Widjaja, Maulasukma
Jetri : Jurnal Ilmiah Teknik Elektro Jetri, Volume 20, Nomor 2, Februari 2023
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jetri.v20i2.15606

Abstract

The high pollution and flooding in the rainy season is one of the problems faced by big cities in Indonesia, especially the capital city DKI Jakarta. To be able to reduce pollution and the effect of greenhouse gases, one way is to use environmentally friendly energy sources. The use of solar panels as an alternative source of electrical energy is an alternative to reduce the use of fossil energy. Based on these problems, the purpose of this research is to design a photovoltaic system for monitoring water levels based on IoT. The benefit that can be obtained from this research is that the river water level can be monitored in real time using an IoT-based water level monitoring prototype. Furthermore, designing prototypes and IoT systems can be carried out, in this study Arduino, web and also android applications are used. The alarm will turn on if the deep water level is above the predetermined limit. In the prototype there are three color LED lights as an indicator to mark the water level, the green color indicates that the water level is safe, the yellow color indicates that the water level is close to the safe limit and the red color indicates that the water level is above the limit. safe and dangerous.   Key Word :   Photovoltaic, flood, pollution, monitoring, IoT
Analisis Perbandingan Efisiensi dan Biaya Penggunaan Lampu AC dan DC Menggunakan PLTS Alfathina, Ghina; Irianto, chairul Gagarin; kasim, ishak; Abduh, Syamsir; sari, tyas kartika
Jetri : Jurnal Ilmiah Teknik Elektro Vol. 21 No. 1 (2023): Jetri, Volume 21, Nomor 1, Agustus 2023
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jetri.v21i1.17032

Abstract

Abstract Solar power plant is one of the developments in the use of renewable energy that has received government support through Ministerial Regulation No.49 of 2018 and Ministerial Regulation No.26 of 2021 regarding rooftop solar power plant. Based on the 2019 solar power plant roadmap draft, the investment cost of rooftop solar power plant per kWp is around 14-25 million rupiah, the amount of this investment is an important consideration for the community to install rooftop solar power plant. One alternative to reduce the investment cost of rooftop solar power plant is to reduce the capacity of the inverter by using lighting from DC lamps. This research was conducted by comparing the efficiency values and investment costs, and using the benefit-cost analysis method to compare a series of relevant costs and benefits between the use of DC lamps and AC lamps for household lighting using PLTS. The results of this research is that DC lamps have a light current of 280 – 350 lumens, an illumination intensity of 48 lux, and a PLTS system efficiency of 98,5% which is higher in value compared to AC lamps which have a light current of 250 lumens, an illumination intensity of 21 lux, and a PLTS system efficiency of 49,3% with the same lamp power of 3W. Analysis of the investment feasibility of on-grid and off-grid PLTS, both 2200VA and 900VA shows that the NPV is negative and the BCR value is less than 1, so the investment is not yet feasible. Keywords: Investment feasibility analysis, DC Lamps, AC Lamps, Solar Rooftop