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All Journal Buletin Udayana Mengabdi Jurnal SPEKTRUM Jurnal Jurusan Pendidikan Teknik Elektro Journal of Electrical, Electronics and Informatics International Journal of Engineering and Emerging Technology Innovative: Journal Of Social Science Research Jurnal SPEKTRUM

l Gusti Ngurah Janardana

Electrical Engineering Department, Faculty Of Engineering, Udayana University, Bukit Jimbaran, Indonesia

Author-ID : 2932654

Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Public Health Other

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Analisis Pengaruh Nilai Resistansi untuk Pentanahan Kawat Netral Terhadap THD Arus di Fakultas Teknik Universitas Udayana – Sudirman I G.N Nanda Ramdipa Amerta; I Wayan Rinas; I G.N Janardana
Jurnal SPEKTRUM Vol 5 No 2 (2018): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Harmonics is a periodic sine wave distortion, due to the operation of nonlinear loads. Har-monics causes current to flow in the neutral wire even though in a balanced load condition, in addition to harmonic load imbalance problems will increase the current flowing in the neutral wire, making it dangerous for the electrical system. This research was using electrical system modeling simulation in MATLAB application by changing the earth resistance value to see the effect of earth resistance value to Total Harmonic Current Distortion (THDi), it is necessary to analyze the effect of resistance value for THDi neutral wire grounding. This study uses the Fast Fourier Transform (FFT) method. THDi simulation results when the conditions of the resistance value is 9 ?, THDi percentage in phase R is 6.30%, Phase S is 2.86%, Phase T is 2.50%. When the earth resistance value is 5 ?, the percentage of THDi decreases with the value in phase R is 6.09%, Fasa S is 2.61%, Fasa T is 2.48%. When the earth resistance value is 2 ?, the THDi percentage in the R phase is 5.85%, Fasa S is 2.09%, Fasa T is 2.22%. Based on the simulation results it is known that the smaller the earth resistance value, the smaller the harmonic distortion in the electrical system.

OPTIMASI PERENCANAAN SISTEM PEMBUMIAN PADA RENCANA PEMBANGUNAN GAS INSULATED SUBSTATION 150 KV PECATU Putu Quentin MP; Cok Gede Indra Partha; IGN Janardana
Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

The construction of the Gas Insulated Substation (GIS) 150 kV Pecatu is planned by PT. PLN(Persero) to get electricity needs in the area of Pecatu, Badung Regency, Bali Province. The GasInsulated Substation (GIS) 150 kV Pecatu is located in a hilly area with a texture of limestone rockysoil and the resulting soil type resistance is ? = 263.76 ohm-meter. The results of calculations for thetype of earthing system Plates earth resistance value of 0.95 ohms at a cost of Rp. 4,196,000,000, -(Four Billion One Hundred Ninety Six Million Rupiah), for the type of Mesh earthing system no resultsare obtained <1 ohm and for the Multi Grid-Rod earthing system type the grounding resistance valueis 0.876 ohms at a cost of Rp 3,753,120,000, - (Three Billion Seven Hundred Fifty Three Million OneHundred Twenty Thousand Rupiah). The type of earthing system recommended is a Multi Grid-Rodearthing system with a distance between parallel conductors (D) of 1 meter, depth of conductorplanting as deep as 4 meters above the ground surface, Rod electrode diameter of 0.015 meters, Rodelectrode length of 4 meters and total conductor length of 12500 meters.

ANALISA DAYA PEMBANGKIT LISTRIK TENAGA MINIHIDRO TUKAD BALIAN, TABANAN MENGGUNAKAN SIMULINK W.G. Suharthama; I W.A Wijaya; I G.N Janardana
Jurnal SPEKTRUM Vol 2 No 2 (2015): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

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PLTM Tukad Balian merupakan pembangkit listrik yang direncanakan oleh PT Bali Energi Indonesia tetapi sampai tahun 2014 belum dapat terealisasi karena pembebasan lahan. Hasil perencanaan PT Bali Energi Indonesia, penelitian ini membahas simulasi unjuk kerja generator untuk mengetahui besarnya daya mekanik PLTM Tukad Balian jika terjadi perubahan beban menggunakkan model simulink. Hasil simulink beban 80% didapat debit air sebesar 8.35 m3/s dengan aliran rencana debit air PT Bali Energi Indonesia sudah mampu menyuplai beban yang dibutuhkan.

PEMANFAATAN PENCAMPURAN GYPSUM DENGAN KALSIUM OKSIDA SEBAGAI ZAT ADITIF PADA SISTEM PEMBUMIAN Ni Wayan Dian Puspita Sukma Dewi; I Gusti Ngurah Janardana; Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 8 No 3 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

One of the most influential factors on the grounding system is the type of soil. Each soilhas a different resistivity. So, it is necessary to add media in the form of additives, one of whichis a mixture of gypsum (CaSO4`.2H2O) and Calcium Oxide (CaO). The purpose of this researchwas to obtain the percentage of the mixture and the effectiveness between gypsum(CaSO4.2H2O) and calcium oxide (CaO) to obtain the maximum quantity of water and to decidethe impact of a mixture of gypsum (CaSO4.2H2O) with calcium oxide (CaO) as a medium foradditives. to reduce the resistivity of the soil. The method used in this study is an experimentalresearch method. The results of this study showed that the mixture of gypsum and calciumoxide that was effectively used was a mixture with a ratio of 3 kg of gypsum and 1 kg of calciumoxide and the percentage decreased resistance value was 37.93%

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

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.

ANALISA RESETTING OVER CURRENT RELAY DAN GROUND FAULT RELAY PADA TRAFO 60 MVA 150/20 kV DAN PENYULANG 20 kV GARDU INDUK PADANG SAMBIAN Indra Gunawan; Wayan Rinas; I Gusti Ngurah Janardana
Jurnal SPEKTRUM Vol 5 No 2 (2018): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Electricity energy needs in Bali have increased annually by 135,2 GWh, as a result, the State-Owned Electrcity Company (PLN) is being required to add new power plants or the addition of transformer to serve load side fedeers. New transformer have been added to Padang Sambian substation and the reconfiguration of Padang Sambian feeders. The reconfiguration causes the feeder impedance value to change, thus affecting the protection system such as Over Current Relay (OCR) and Ground Fault Relay (GFR). Calculation of current setting and OCR and GFR relay work time can minimize the interference that occurs. The amount of short circuit current that occurs in Padang Sambian fedeers was calculated to determine the value of relay settings. The result of the analysis showed that the OCR current setting value for the incoming side of 0,91 A with Time Multiplier Setting (TMS) was 0,2 SI and OCR on the outgoing side of 2,063 A with TMS of 0,161 SI. The value of current setting for the incoming GFR was 0,01 A with TMS of 0,27 SI and the setting value of the GFR current on the outgoing side was 0,16 A with TMS of 0,106 SI. The result of Electrical Power System Analysis (ETAP) simulation obtained an OCR and GFR coordination curve that did not intersect the Time-Curve Current (TCC) characteristic. This shows that coordination runs well and meets sensitivity, reliability, selectivity and speed requirements.

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

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.

PENGARUH POTENSIAL HIDROGEN (pH) TANAH TERHADAP TAHANAN JENIS TANAH UNTUK MENDAPATKAN BENTUK SISTEM PEMBUMIAN INA Seputra; IWA Wijaya; IGN Janardana
Jurnal SPEKTRUM Vol 6 No 4 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Grounding is a basic measure to guarantee the security, reliability of the operation of the system and ensure the safety of humans and living things when there is a ground disturbance in the electric power system. In research on the earthing system, what must be considered is the nature of the soil as the place where the grounding system will be installed. The difference in soil type and acidity will affect the safety quality of the grounding system. This study discusses the acidity of the soil to get an appropriate earthing system on different soil textures. The research method used is direct measurement of acidity and resistivity of different soil textures. As well as analyzing by calculating the optimization of 4 types of earthing system namely Rod, Multiple Rod, Plate, Mesh and Grid-Rod technically. The results of the analysis found that each soil has a different level of acidity. The stronger the soil acidity, the smaller the type of resistance produced. A good acidity level is used for the grounding system (pH <7). Unequal acidity causes different types of soil resistivity, so the shape of the grounding system will vary according to the texture and type of soil.

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

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.

Smart Irigasi Berbasis Arduino Sebagai Kontrol Air Subak untuk Mempertahankan Ketahanan Pangan I Kadek Agus Wahyu Raharja; Fachri Zamzami; I Gede Feryanda Fransiska; I Gusti Ngurah Janardana
Jurnal SPEKTRUM Vol 5 No 2 (2018): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Agriculture in Bali generally using Subak system as an irrigation system. This irrigation system is regulated by a traditional leader who is also a farmer in Bali. Water distribution is carried out according to the area of farmers land. The problems that can be happened on this irrigation system, such as the community that opens the floodgates to the rice fields, are not in accordance with the time provided by traditional leaders, and that can break the unity in the area. In addition, during the dry season the distribution of water is sometimes uneven because the availability of water in the dam does not meet the needs. So that Arduino-based Solar Powered Smart Irrigation is designed as one of the tools to facilitate the management of subak water distribution. The modeling made is to simulate 3 pieces of rice fields that are drained by water with the main source being the river and the source of the reserve in the form of a reservoir. This system is controlled based on the programmed time on the RTC module and the monitoring system uses the GSM SIM900 module. The data obtained is the value of water discharge in the rainy season of 2.090 L / s, the dry season of 11.18 L / s, and 0 L / s in the hard dry season.

Co-Authors A A G M Pemayun A I Weking A. I. Weking A.A Ngurah Amrita AA. M Pemayun Achmad Noerkhaerin Putra Aggry Saputra Anandita Praja Dwitama Ananta Wijaya Ariany Frederika Biantoro, Kharis C G I Partha C G I Partha Dewa Agung Krishna Arimbawa P dwi ardiada Fachri Zamzami Ferry Ardiansyah Fransiskus Xaverius Saav Agus I B Gede Manuaba I G. P. A. Wartama I G.B. Satcitananda P I G.N Nanda Ramdipa Amerta I Gede Agus Handi Saputra I Gede Dyana Arjana I Gede Feryanda Fransiska I Gede Putu Aditya Kresna Artha K I Gst Agung Putu Raka Agung I Gusti Putu Andhita Mahayana I Kadek Agus Wahyu Raharja I Kadek Dwi Artika Putra I Komang Suarjana I M Dwijaksana I M Suartika I Made Darmayusa I Made Dhanan Pradipta I Made Mudiarta I Made Suartika I Made Surya Ganesputra I Made Suwartama Wijaya I Nyoman Angga Prabawa I Nyoman Apriana Arta Putra I Nyoman Arnawan I Nyoman Budiastra I Nyoman Budiastra I Nyoman Julyantara I Nyoman Mudana I Putu Andrean Wiranata I Putu Arich Arthawan I Putu Bayu Suka Yasa I Putu Nanda Nugraha Utama I Putu Nova Suciawan I W A Wijaya I W Arta Wijaya I W Rinas I W. A. Premei Artha I W. A. Wijaya I W. A. Wijaya I W. Rinas I W.A Wijaya I Wayan Arta Wijaya I Wayan Arta Wijaya I Wayan Rinas I Wayan Sukerayasa I.W.A Wijaya I.W.A. Wijaya Ida Bagus A. Swamardika Ida Bagus Adisimakrisna Peling Ida Bagus Gede Wira Negara Ida Bagus Made Pandwa Putra IGP Agung Satya Wicaksana INA Seputra IWA Wijaya IWY Swara I_M. Suartika K A Kartika Sari Kadek Mirah Mahadewi Kadek Paramarta Dwi Parna kadek rudi andika setyawan Kadek Widipratama Ketut Dharma Yasa Khana Eland N.A Kharis Biantoro Lie Jasa M.S. Ugustra Made Andi Kusumayana B Made Dinda Pradnya Pramita Ngakan Putu Satriya Utama Ni Wayan Dian Puspita Sukma Dewi Nia Paramitha NPG Suardana Nyoman Karnata Mataram P A Mertasana Putu Quentin MP Putu Sri Merta Suryani Quentin MP, Putu Ravinda Ariestya Pamungkas Riantika, I Gede Rama Rinas, I W. Rukmi Sari Hartati Satcitananda P, I G.B. Satriyo Agung Pribadi Tjok Gede Indra Partha W G Yoga Ananta Wijaya W. Arta Wijaya W.G. Suharthama Wahyu Adi Merta Wayan Gede Ariastina Yanu Prapto Sudarmojo Zulfachmi, Zulfachmi

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