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PEMILIHAN JENIS PENANGKAL PETIR UNTUK MENGAMANKAN AREA GEDUNG BESERTA PERALATAN PADA PERUMAHAN NUSA DUA HIGHLAND Kharis Biantoro; I Wayan Arta Wijaya; I Gusti Ngurah Janardana
Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (501.743 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i01.p19

Abstract

The selection of lightning rods in the Nusa Dua Highland housing estate aims to securethe housing area from lightning strikes, because the housing has not been protected by lightningrods and earthing system components which are very difficult because they have rocky soil types.The average number of lightning strikes per year with a density value of 31 per km2 and populationdensity, land use for houses and buildings have a very high level of vulnerability, so lightning rodsare needed to secure the Nusa Dua Highland residential area. Lightning rods to be used areconventional lightning rods or Evo Franklin (E.F). The selection of the type of lightning rod is done byanalyzing technical and economical. The results achieved in this study are the type of lightning rodsuitable for housing Nusa Dua Highland is the E.F lightning rod with an earthing system. Becausefrom technical analysis, 1 E.F lightning rod is able to protect the entire residential area with 37,994m2 of protection area from the 22,444 m2 housing area, while 1 conventional lightning rod is onlyable to protect 1 house from a total of 147 housing units. In terms of economical cost of installing E.Flightning rods is much cheaper at a cost of Rp. 104,450,000. Conventional lightning rods cost Rp.14,390,000 for 1 housing unit and to protect the entire housing using conventional lightning rodsneeded 147 lightning rods at a cost of Rp. 2,115,390,000.
Rancang Bangun Kapasitor Bank Otomatis Berbasis Mikrokontroler ATmega 328P Untuk Perbaikan Faktor Daya Putu Angga Juliantara; I Wayan Arta Wijaya; Cok Gede Indra Partha
Jurnal SPEKTRUM Vol 5 No 1 (2018): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (483.492 KB) | DOI: 10.24843/SPEKTRUM.2018.v05.i01.p23

Abstract

Inductive load with low power factor has led to the greater load current so that it is required a power factor improvement. Improvement of power factor in inductive load can be carried out by installing capacitor according to required proportion. Installation of capacitors can be used in parallel or series to electric source.The method of making design is divided into two parts, namely, the first is the designing of hardware and the second is the designing of the software. The designing of hardware consists of designing the power supply circuit, driver relay circuit, LCD circuit, minimum system circuit of ATmega 328P, capacitor bank circuit, current sensor circuit and voltage sensor circuit. The sensors used in this study were a non-invasive type SCT013-010 current sensor and a voltage sensor of a 500 mA type zero transformer. The design of software was in the form of work program tools that use the application of Arduino IDE. LCD displays the readout values of voltage, load current, active power, apparent power, reactive power and power factor. The ATmega 328P microcontroller processes data and determines the working relay so that the purpose of power factor value by cos phi ? 0.85 is achieved. The results achieved in this research is the design of automatic bank capacitor based on microcontroller of ATmega 328P can improve power factor by conducting injection capacitor to raise the power factor value according to PLN standard by cos phi ? 0.85 by connecting capacitor to the source of PLN paralleled by a single phase inductive load.
PENGARUH KETEBALAN BATU KORAL PADA TANAH LEMPUNG DAN TANAH BERPASIR TERHADAP TEGANGAN LANGKAH DAN TEGANGAN SENTUH I Putu Nova Suciawan; I Gusti Ngurah Janardana; I Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 8 No 1 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (530.714 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i01.p8

Abstract

Ground fault currents that flow in the disturbance area and in the switchyard area of theSubstation create tension on the ground which can result in touch voltage and step voltage thatexceed the allowable limits of human safety. The thickness of the coral rock affects the value ofthe touch voltage and step voltage. This research was conducted to determine the effect of thethickness of the coral rock on clay and sandy soil on stepvvoltage anddtouchvvoltage.Themethod used is by measuring coral, clay soils and sandy soils, then calculating thevvalueofttouch voltageaand stepvvoltage based on the thickness of the coral used. The results ofcalculations and analysis of several thicknesses of coral stones used in clay soil, obtained theresults of the touch voltage in the dry state of 153.5615 volts and in the wet state of 152.0702volts, the results of the step voltage in the dry state 188.5057 volts and in the w et state 182 ,8265 volts. On sandy soil, the results of the touch voltage are 153.6893 volts in dry conditionand 152.1981 volts in wet conditions, the results of the step voltage in dry conditions are189.141 volts and in wet conditions 183.4349 volts.
RANCANG BANGUN PELUNCUR ELEKTROMAGNETIK DENGAN SUPLAI KAPASITOR I Nyoman Adi Guna Subawa; Yanu Prapto Sudarmojo; I Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (424.587 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i01.p2

Abstract

Electromagnetic launchers are devices that use electromagnetic forces to launch high-speed projectiles, utilizing accelerated armature shifts along with a pair of conductive rails. Electromagnetic launchers have been studied as high-speed ballistic launchers for various applications such as military weapons to space launches. Based on the development of capacitor technology and the limited development of electromagnetic launchers, especially in the field of launching high-speed projectiles with capacitor supply as the development of electromagnetic weapons technology, research was carried out by making the design of electromagnetic launchers with capacitor supply to produce high-speed projectiles (more than 180m/s based on variations in rifle bullet speed) as the development of electromagnetic weapons technology. The results of the research on the design of electromagnetic launchers with capacitor supply obtained the final projectile velocity value of 200,644 m/s, which consists of three main components namely the rail system, the gas injector, and the supply system.
ANALISIS GANGGUAN HUBUNG SINGKAT SIMETRIS DAN ASIMETRIS UNTUK MENENTUKAN KAPASITAS PENGAMAN YANG TERPASANG PADA JARINGAN DISTRIBUSI 20 kV PENYULANG MAMBAL I Kadek Purniawan Paramadita; Ngakan Putu Satriya Utama; I Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 6 No 3 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (296.467 KB) | DOI: 10.24843/SPEKTRUM.2019.v06.i03.p10

Abstract

Gangguan hubungasingkat tenaga listrik ditimbulkan oleh hubung singkat tigaafaseasimetris, gangguan hubung singkat tidak simetris satu fase ke tanah dan gangguan hubung singkat tidak simetris antar fasa dan dua fasa ke tanah. Gangguan tersebut telah menyebabkan beberapa trip, kegagalan kerja relay dan recloser. untuk menentukan setting waktu kerja relay arus lebih dan recloser agar peralatan proteksi dapat bekerja dengan baik dilakukan simulasi gangguan hubung singkat pada beberapa titik lokasi gangguan yang dipilih berdasarkan kondisi di jaringan penyulang Mambal. Berdasarkan analisis, arus gangguan hubung singkat dipengaruhi oleh jarak tittik gangguan, semakin dekat titik gangguan dengan sumber maka semakin besar arus gangguan hubung singkat pada titik tersebut. Arus gangguan maksimum dan minimum hubung singkat mengakibatkan selisih waktu kerja relay di tiap lokasi dengan selisih waktu TMS selama 0,4 detik. Dilakukannya setting sistem proteksi pada penyulang Mambal sesuai dengan hasil analisis dapat memperbaiki selektifitas sistem proteksi pada Penyulang Mambal.
POTENSI DAYA DARI SOLAR CELL TERPASANG SESUAI DENGAN POLA ATAP RUMAH BERBASIS ARSITEKTUR BALI I Nyoman Apriana Arta Putra; Wayan Arta Wijaya; I.G.N Janardana
Jurnal SPEKTRUM Vol 6 No 1 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (770.614 KB) | DOI: 10.24843/SPEKTRUM.2019.v06.i01.p04

Abstract

This study was conducted to determine the potential power obtained at home with the Balinese roof pattern when developed with renewable energy sources. Solar energy as a source of renewable energy has enormous potential, especially in Indonesia. Balinese architecture-based roof pattern has 4 fields, the north and south side are trapezoidal and the east and west sides are triangular with 350 roof inclination angle. One of Bali's traditional buildings is Bale Sari, which is a case study with an area of ??32.64 m2, length 6.40m and width 5.10m. Bale Sari's roof has a pyramid pattern, each side having the same length and width. Methods performed in this study with manual calculations to find the potential maximum power. The total number of solar panels used is 234 pieces. With this amount, obtained the best potential results on the southern side, with an average power gained of 667.67 Watt. The results are obtained when the sun is at a maximum warming point or precisely when the weather is sunny. The result of the average power potential analysis obtained by solar cell installed on the roof of the Balinese architecture house is 1,935.49 Watt.
ANALISIS PENAMBAHAN TRANSFORMATOR SISIPAN UNTUK MENGATASI OVERLOAD PADATRANSFORMATOR DB0244 DI PENYULANG SEBELANGA Kadek Wahyudi Widiatmika; I Wayan Arta Wijaya; I Nyoman Setiawan
Jurnal SPEKTRUM Vol 5 No 2 (2018): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (267.768 KB) | DOI: 10.24843/SPEKTRUM.2018.v05.i02.p03

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Penyulang Sebelanga berada di wilayah PT.PLN (Persero) Area Bali Selatan yang disuplai oleh Gardu Induk Pemecutan Kelod dengan kapasitas penyulang sebesar 280 A. Penyulang Sebelanga mensuplai tranformator DB0244 yang terbebani sebesar 103,4 % dengan kapasitas 250 kVA. Standarisasi pembebanan untuk sebuah transformator adalah sebesar 80% dari kapasitas transformator. Solusi untuk mengatasi permasalahan ini adalah dengan melakukan pemasangan transformator sisipan yang bertujuan untuk membagi beban dari transformator DB0244. Berdasarkan data PT. PLN (Persero) Area Bali Selatan tahun 2017 peningkatan penggunanan energi listrik di kota Denpasar setiap tahunnya adalah sebesar 8,3%. Maka dengan menggunakan transformator sisipan yang berkapasitas 250 kVA, dimana persentase pembebanan awal sebesar 26,8% akan dapat melayani peningkatan penggunaan energi listrik selama lima tahun kedepan dengan total persentase pembebanan setelah lima tahun adalah sebesar 68,3%.
PERENCANAAN SETTING DIRECTIONAL GROUND RELAY (DGR) UNTUK GANGGUAN SATU FASA KE TANAH DI SALURAN 150 KV DOUBLE CIRCUIT GIS PESANGGARAN – GI NUSA DUA Ganggas B Maulana Idham; I Gede Dyana Arjana; I Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 8 No 4 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (537.593 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i04.p13

Abstract

The single phase to ground fault on the 150 kV transmission line GIS Pesanggaran –Nusa Dua Substation has a high fault impedance so that the distance relay as anauxiliary safety device cannot detect the disturbance. Directional Ground Relay (DGR)was chosen as an auxiliary protection relay to secure the system from single phase toground faults. Installation of auxiliary protection relays requires planning and relaysetting steps to obtain Iset, TMS and trip time. The calculations that have been carriedout get the results of DGR setting with a pickup current range of 0.0522 – 0.0722 A.DGR will work after 2.297 seconds if the differential relay as the main protection relaydoes not work or fails and the distance relay as a backup protection does not succeed insecuring a single phase fault to ground as well.
“STUDI POTENSI PEMBANGKIT LISTRIK TENAGA MIKROHIDRO (PLTMH) DI DESA” AAN, KABUPATEN KLUNGKUNG PROVINSI BALI Kadek Dwiky Sadha Widiarta; I Wayan Arta Wijaya; I Made Suartika
Jurnal SPEKTRUM Vol 8 No 3 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (620.119 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i03.p1

Abstract

Bali has the potential for mini-hydro and micro-hydro power plants of 15 MW. There are154 rivers and springs scattered in Bali which are used as irrigation for rice fields. Aan Villagehas an Irrigation Channel, namely Subak Aan Dauh Desa which is sourced from the TukadBubuh, which according to observations has a stable flow every year. This study aims todetermine the potential of MHP in Aan Village, especially in Subak Aan Dauh Village IrrigationChannel, Tukad Bubuh seen from the condition of the research location, water discharge andhead. The methods used in this research are observation, literature study, and interviews. Thedata is then processed to obtain an estimate of the appropriate power generation based on thewater discharge, and head at each location. The results of this study indicate the potential ofMHP in the Subak Aan Dauh Desa irrigation channel, Tukad Bubuh, Aan Village, there are 4research locations with each water discharge of 0,7917 m3/s, 0,7434 m3/s, 0,9612 m3/s, and0,3198 m3/s, having a head of 0.9 m, 1.1 m, 3 m, and 2 m. The estimated power generation withthe assumption that the total efficiency of the 65% is 4.54 kW, 10.42 kW, 18.38 kW, and 4.07kW. Based on the aspect of determining the type of turbine at each research location, locations1 and 2 used the Breast Wheel type waterwheel, while locations 3 and 4 used ArchimedesScrew turbines.
RANCANG BANGUN SISTEM MONITORING KINERJA PANEL SURYA BERBASIS MIKROKONTROLLER ATMEGA 328 Dewa Gede Dede Pramana; I Wayan Arta Wijaya; I Made Arsa Suyadnya
Jurnal SPEKTRUM Vol 4 No 2 (2017): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (818.318 KB) | DOI: 10.24843/SPEKTRUM.2017.v04.i02.p12

Abstract

This research aims to develop a system capable of monitoring the performance of solar panels. This design is based on microcontroller atmega 328. In making this system is divided into two parts, namely, the design of hardware (hardware) which consists of the design of electronic devices. Second, the design of software (software). Programming of monitoring and recording system using Microsoft visual basic and arduino IDE software. Testing results using 12v light emitting diode (LED), monitoring system has been able to inform if the solar panel there is a voltage drop in the presence of an indicator on the sides of the panel, if the voltage is below the minimum 8v, then on the red panel panel lights up the indicator is not good, otherwise it will turn green if the voltage above the minimum voltage limit is 8v and the status is good. The results of software testing have been successful showing the expected results at the time of testing using black box testing method.
Co-Authors A A Gd Maharta Pemayun Agus Teja Ariawan Agus Trisna Saputra Anak Agung Gede Maharta Pemayun Anandita Praja Dwitama Antonius Ibi Weking Bagus Kurniawan Christ Ave Duga Purba Cokordei Gedei Indra Partha Devin Gede Herawan Dewa Gede Dede Pramana Dewa Gede Wahyu Adi Prayoga Galih Budi Santosa Ganggas B Maulana Idham Gede Andre Agusta Putra Gregorius Reza Dwi Nugroho I B Kd Surya Negara I Dewa Gede Bayu Satya Nugraha I Gede Agus Handi Saputra I Gede Anom Aditya Prawira I Gede Aries Gunawan I Gede Dyana Arjana I Gede Dyotha Yogadipha Bagas I Gede Gerry Julius Perdana I Gede Krisnayoga Kusuma I Gede Nadi Arta I Gede Ngurah Arya Raditya I Gede Putu Aditya Kresna Artha K I Gst Agung Putu Raka Agung I Gusti Bagus Wiradhi Yogathama I Gusti Made Bagus Kurniawan I Gusti Made Widiarsana I Gusti Ngurah Agung Mahardika I Gusti Ngurah Saputra I Kadek Agus Arta Yasa I Kadek Arya Wiguna I Kadek Dwi Artika Putra I Kadek Purniawan Paramadita I Ketut Adi Wicaksana I Ketut Wijaya I Komang Gede Darma Yasa I Komang Suarjana I Made Adi Purwa Adnyana I Made Alim Subawa I Made Ardika Tommy Saputra I Made Arsa Suyadnya I Made Darmayusa I Made Dwi Mertadiyasa I Made Eko Adi Setiawan I Made Mudiarta I Made Suartika I Made Suwartama Wijaya I Nengah Suweden I Nyoman Adi Guna Subawa I Nyoman Apriana Arta Putra I Nyoman Budiastra I Nyoman Budiastra I Nyoman Duarsana I Nyoman Setiawan I Nyoman Sudiatmika I Nyoman Upanayana I Putu Adhe Putra Novantara I Putu Andrean Wiranata I Putu Bayu Suka Yasa I Putu Elba Duta Nugraha I Putu Gede Surya Angga Pranata I Putu Jerry Akira Dinata I Putu Nanda Nugraha Utama I Putu Nova Suciawan I Putu Sudiarta I Putu Wahyu Indra Wedanta I Putu Yasa Darmadi I W. A. Premei Artha I Wayan Eka Prastia I Wayan Rinas I Wayan Sukerayasa I. P. Krisna Darma Putra I.M. Benny P.W. I.W. Parmadi Putra Ida Ayu Dwi Giriantari Ida Bagus A. Swamardika Ida Bagus Dwiki Dharma Putra Ida Bagus Gede Wira Negara Ida Bagus Made Pandwa Putra IGP Agung Satya Wicaksana Indra Adi Permana Kadek Dwiky Sadha Widiarta Kadek Mirah Mahadewi Kadek Wahyudi Widiatmika Kadek Widipratama Khana Eland N.A Kharis Biantoro Krisda Bimas Permada l Gusti Ngurah Janardana Lie Jasa Made Ananta Pradnya Made Andi Kusumayana B Ngakan Putu Satriya Utama Ngurah Yowana Asta Prawangsa Ni Wayan Dian Puspita Sukma Dewi Ogik Azis Bukhori Ongky Wahyu Wicaksono Pande Putu Teguh Winata Pratolo Rahardjo Putu Agus Arcana Surya Putu Andi Dinata Putu Angga Juliantara Putu Juliartawan Ravinda Ariestya Pamungkas Riantika, I Gede Rama Sega Awaludin Tjok Gede Indra Partha Wahyu Adi Merta Wayan Gede Ariastina Yanu Prapto Sudarmojo