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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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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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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 systemâs 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 canâtwell 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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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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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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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
Publisher : Website

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
Publisher : Website

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
Publisher : Website

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.

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