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All Journal Buletin Udayana Mengabdi Jurnal SPEKTRUM Majalah Ilmiah Teknologi Elektro PROSIDING CSGTEIS 2013 Journal of Electrical, Electronics and Informatics International Journal of Engineering and Emerging Technology Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Jurnal Indonesia Sosial Sains Majalah Ilmiah Teknologi Elektro Merkurius: Jurnal Riset Sistem Informasi dan Teknik Informatika

I Wayan Sukerayasa

Teknik Elektro Fakultas Teknik Universitas Udayana

Author-ID : 2932556

Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Neuroscience Physics Social Sciences

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EVALUASI UNTUK MENGATASI BEBAN LEBIH PADA PENYULANG BATU BELIG K.H. Priadi; R.S. Hartati; I.W. Sukerayasa
Jurnal SPEKTRUM Vol 2 No 1 (2015): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (303.354 KB)

Penyulang Batu Belig merupakan penyulang dengan konfigurasi tipe radial, dengan 109 trafo distribusi, total daya terpasang 19.175 KVA. Pada tahun 2013 beban puncak penyulang Batu Belig sebesar 284 A dan standar maksimal pembebanan suatu penyulang 240 A (80% dari 300 ampere). Mengatasi beban lebih pada penyulang Batu Belig, perlu dilakukan rekonfigurasi jaringan distribusi. Rekonfigurasi jaringan distribusi dapat dilakukan dengan dua skenario : skenario 1 dengan mengalihkan sebagian beban penyulang Batu Belig ke penyulang terdekat, yaitu penyulang Mertanadi dan Uma Alas. Skenario 2 dengan memotong beban penyulang Batu Belig menjadi dua, sehingga didapat penyulang Batu Belig 1 dan penyulang Batu Belig 2. Penyulang Batu Belig 2 akan dialihkan ke penyulang baru, yang ditarik dari gardu induk terdekat, yaitu Gardu Induk Padang Sambian dan Gardu Induk Pemecutan Kelod. Setelah dianalisis solusi terbaik untuk mengatasi beban yang sudah kritis pada penyulang Batu Belig dengan rekonfigurasi skenario 2, yaitu penyulang Batu Belig 2 dengan sumber gardu induk Pemecutan Kelod (trafo III/ 60 MVA) mengunakan kabel tanam (AL XLPE 240 mm2). Menggunakan kabel tanam didapat persentase losses sebesar 2,5% dan persentase drop tegangan sebesar 1,63%, untuk standar losses yang diijinkanl adalah 5,24% [1], dan drop tegangan pada tipe radial yang diijinkan tidak boleh lebih dari 5% [2].

Analisis Pengaruh Harmonisa terhadap Rugi-Rugi Daya pada Sistem Tegangan Rendah dan Transformator GR088 di Penyulang Menjangan Salim Afif; I W. Sukerayasa; W. G. Ariastina
Jurnal SPEKTRUM Vol 5 No 2 (2018): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Menjangan feeder is a medium-voltage network system which distributes electricity throughout Gilimanuk and some areas in Buleleng. It has 69 distribution substations, which one of them, substation GR088, contributes to the highest value of the total harmonic distortion (THDi). In this research, the effect of harmonic distortions on losses at low voltage system of substation GR088 will be evaluated.The method used in this study is direct measurement of harmonic distortions at each low-voltage costumer whose electricity is generated by substation GR088 at Menjangan Feeder. Software is also used to perform harmonic load flow analysis and simulations. The total value of losses on transformer and low voltage system of substation GR088 Menjangan feeder, in a no-harmonic condition is 1481,7 Watt. On under-harmonic condition, the total value of losses is 1552,5 Watt. Therefore there is a 70,8 Watt difference between the two conditions. At this case, beside the heat created by the harmonic distortion that can affect the performance of transformers, it also cause a quite great value of losses, which is 1,7 kWh per day, or approximately 620 kWh per year. It means the harmonic distortion in substation GR088 can cause PT PLN (Persero) lose Rp.910.018,8 per year.

STUDI KEAMANAN SUPLAI ENERGI LISTRIK BALI SAMPAI DENGAN TAHUN 2025 I. G. G. B. Prabu Wisesa; W. G. Ariastana; I.W Sukerayasa
Jurnal SPEKTRUM Vol 2 No 3 (2015): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1482.542 KB)

Sistem kelistrikan Bali smempunyai daya mampu untuk menyuplai energi sebesar 1068 MW, daya mampu tersebut didapatkan dari suplai energi listrik dari pembangkit Gilimanuk, pembangkit Pesanggaran, pembangkit Pemaron dan kabel laut. Kriteria N-1 merupakan kondisi dimana salah satu penyedia tenaga listrik dengan unit pembangkitan terbesar keluar dari sistem atau tidak beroperasi baik akibat kerusakan atau perawatan (bisa pembangkit atau saluran transmisi). Berdasarkan pertumbuhan beban puncak sistem kelistrikan Bali, tahun 2020 sistem kelistrikan Bali mendapat suplai energi dari Saluran Udara Tegangan Ekstra Tinggi (SUTET) sebesar 1500 MW, diprediksi daya mampu sistem Bali menjadi 2.818 MW kondisi ini membuat sistem kelistrikan Bali dikatakan aman untuk menyuplai energi listrik. Tahun 2025 beban puncak sistem kelistrikan Bali sebesar 2.261 MW, apabila terjadi kriteria N-1 dalam hal ini adalah Saluran Udara Tegangan Ekstra Tinggi (SUTET) keluar dari sistem maka dipastikan bahwa Bali akan kekurangan suplai energi listrik.

PEMANFAATAN UDARA BUANG EXHAUST FAN SEBAGAI PEMBANGKIT LISTRIK TENAGA BAYU DENGAN PENAMBAHAN WIND TUNNEL BERBASIS ATMEGA 2560 Made Satria Tresnajaya; Cok Gede Indra Partha; I Wayan Sukerayasa
Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Energy needs from year to year has increased along with the increase of population,economic growth, and high energy consumption. Until now, the world still depends on fossilfuels, this causes the depletion of oil availability and also causes air pollution. As a developingcountry, many industries are running around us and also many new industries are growingevery day. Every industry generally has an exhaust fan to maintain the temperature of the workspace. This exhaust fan works to remove air from the inside out. This research uses exhaustfan exhaust by using a 2-blade turbine and the addition of a wind tunnel, which will latercompare the output between using a wind tunnel and without using a wind tunnel. In theresearch the use of exhaust fan exhaust air without using a wind tunnel to get an output of0,30625W while with the addition of wind tunnel output increased by 8,25% to 0,76176W.

ANALISIS ALIRAN DAYA SISTEM KELISTRIKAN 150 KV BALI SAAT REKONDUKTORING SUTT GILIMANUK – NEGARA – ANTOSARI M.K. Huda; W.G. Ariastina; I W. Sukerayasa
Jurnal SPEKTRUM Vol 7 No 3 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

The need for electricity that is growing rapidly on the island of Bali, makes PT PLN (Persero)seek strategic steps in serving customers. Gilimanuk - Negara - Antosari Reconductoring SUTT150 kV is one of the efforts made by PT PLN (Persero) to improve the reliability of the BaliElectricity System which is used to overcome power evacuation problems in the future.Reconductoring goes through a one-month trip phase in each circuit. For this reason, a study isneeded to identify the electricity system readiness by using a power flow analysis simulatorapplication.The simulation is done by extinguishing each of the 150 kV conductors in the BaliElectricity System alternately by taking into account four scenario namely before conducting areconductor, reconductor circuit 1, reconductor circuit 2, and after reconductor. Voltagerecording is carried out on each bus with a tolerance of + 5% Vnom, recording of the load iscarried out on each active 150 kV conductor with a maximum capacity of 80% Inom. The resultsof the simulation show that the anomaly is only obtained when the simulation of circuit 1reconductor works if SUTT 150 kV Gilimanuk - Celukan Onion trip, causing a load exceeding80% Inom on SUTT 150 kV Gilimanuk - Pemaron and SUTT Gilimanuk - Negara - Antosari 2.

OPTIMASI PENEMPATAN KAPASITOR BANK UNTUK PERBAIKAN RUGI DAYA PADA PENYULANG SABA MENGGUNAKAN ALGORITMA GENETIKA I. K. A. Wijaya; R. S. Hartati; I W. Sukerayasa
Jurnal SPEKTRUM Vol 6 No 2 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Saba feeder is a feeder who supplies 78 distribution transformers with feeder length 38,959 kms, through this Saba feeder electrical energy is channeled radially to each distribution substation. In 2017 the voltage shrinkage at Saba feeder was 9.88% (18,024 kV) while the total power loss was 445.5 kW. In this study an attempt was made to overcome the voltage losses and power losses using the method of optimizing bank capacitors with genetic algorithms and network reconfiguration. The best solution obtained from this study will be selected for repair of voltage losses and power losses in Saba feeders. The results showed that by optimizing bank capacitors using genetic algorithms, the placement of capacitor banks was placed on bus 23 (the channel leading to the BB0024 transformer) and successfully reduced the power loss to 331.7 kW. The network reconfiguration succeeded in fixing the voltage on the Saba feeder with a voltage drop of 4.75% and a total power loss of 182.7 kW. With the combined method, reconfiguration and optimization of bank capacitors with genetic algorithms were obtained on bus 27 (channel to transformer BB0047) and managed to reduce power losses to 143 kW.

PERANCANGAN SISTEM POMPA AIR DC DENGAN PLTS 20 kWp TIANYAR TENGAH SEBAGAI SUPLAI DAYA UNTUK MEMENUHI KEBUTUHAN AIR MASYARAKAT BANJAR BUKIT LAMBUH Kadek Bayu Kusuma; Cok Gede Indra Partha; I Wayan Sukerayasa
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Karangasem Regency, especially in Kubu Subdistrict, Tianyar Tengah Village, Banjar BukitLambuh, is an area that still lacks clean water, so that villagers still rely on purchasing clean waterthrough tank trucks at high prices. Around Banjar Bukit Lambuh, there is a 20 kWp Central TianyarPLTS which has been abandoned since 2016 due to the absence of regional companies that manageand maintain the PLTS so that some components of the PLTS are damaged. The abandonment of the20 kWp PLTS makes the Bali Provincial Manpower and Energy Department (ESDM) Department planto transfer the function of PLTS as a source of electricity for water pumps that lift water fromreservoirs with a water capacity of 72,000 liters to a 30,000 liter water reservoir which is near thePLTS to meet the water needs of residents in the Middle Tianyar Village Banjar Bukit Lambuh. Theselected water pump type Lorentz PS2-4000 C-SJ3-32 submersible DC with a total head of 108.6meters and a pipe length of 1,640 meters and requires power of 2.96 kW supplied from PLTS 20 kWpTianyar Tengah with a cable length of 1,640 meters and voltage drop of 8,183 volts, so that the pumpcan operate for 7 hours with 4.2 m3 / h water discharge producing 29,400 liters of water that can meetthe water needs of residents of Banjar Bukit Lambuh Village by 23,328 liters per day.

RANCANG BANGUN SISTEM PEMANEN ENERGI ANGIN EXHAUST FAN DENGAN TURBIN ANGIN ARCHIMEDES SUMBU HORIZONTAL I Made Agus Artha Putra; Cokorde Gede Indra Partha; I Wayan Sukerayasa
Jurnal SPEKTRUM Vol 8 No 2 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Wind ienergy iis iwidely iused ito ireplace ifossil ifuels iwith ivarious itechnologies, ibut iutilizationiby iusing iArchimedes iwind iturbines iis istill irarely ifound. iIn ithis ipaper, iresearch iis iconducted ionithe iimplementation iof ithe iArchimedes iwind iturbine ion ithe iexhaust ifan ito ibe iable ito iutilize itheiexhaust ienergy iproduced. iThe itest iresults ishow ithat ithe imaximum ipower ican ibe iproducedireaches i1.91 iW iat ia idistance iof i10 icm, ibut ithe ipower iproduced iis ionly i0.37 iW. iThe ioptimalidistance ito iplace ithe iturbine ito iharvest ienergy iis iat ia idistance iof i30 icm ibecause iat ithat idistanceithe iArchimedes iwind iturbine iis iable ito iharvest ienergy iof i1.54 iW.

DESAIN PLTS ATAP KAMPUS UNIVERSITAS UDAYANA: GEDUNG REKTORAT Bagas Maruli Pangaribuan; Ida Ayu Dwi Giriantari; I Wayan Sukerayasa
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Utilization of renewable energy is a solution to overcome electricity demand, including PV.PV rooftop can be applied in every building, where solar modules can be placed on the roofbuildings. It also can be done in the University of Udayana Rectorate building because the roof hasthe potential of PV and capable of being a power supply to meet its own needs. This study willdiscuss about the design PV rooftop of the Udayana rectorate building. It simulates the helioscopewith an optimal angle of 14.660 get the result with solar module as much as 135 units with 2inverter pieces of 50 kW the capacity of 45.2 kWp PLTS. While with a sloped roof angle of 15.60get the solar module result as many as 137 units with 2 inverter pieces of 50 kW with PLTScapacity of 45.9 kWp. The calculating production of electric energy produced by PV by simulatingHOMER get the result of PV configuration with Grid capable of supplying electrical energy of304,772 kWh/year, where PV is able to supply at 61,217 kWh/year and Grid supplying electricityenergy of 243,555 kWh/year. The results of the design PV rooftop and calculation results ofelectrical energy production can analyze the economy of the simulation results HOMER with thecost of selling electricity energy PV to PLN in the amount of Rp. 883/kWh can be said to be worthydesigned because it is able to restore the cost of early investment costs PV rooftop of the rectoratebuilding.

ANALISIS KEANDALAN DAN SUSUT DAYA PENYULANG TABANAN SETELAH REKONFIGURASI Salman Al Farisi; Rukmi Sari Hartati; I Wayan Sukerayasa
Jurnal SPEKTRUM Vol 5 No 2 (2018): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

The need for electricity in this global era is increasing, so that a more reliable electrical system is needed. A reliable system cannot be separated from interference, so there needs to be a system reliability analysis and power loss to the feeder by configuring the network. This research was conducted to find the reliability index value in the form of interference frequency and duration of interference (SAIFI and SAIDI). In one Tabanan feeder the results obtained exceed the standard so reconfiguration is performed Based on the analysis obtained before reconfiguration, the reliability index for SAIFI is 6,7456 (failure / year) and SAIDI is 11,4767 (hour / year) and power loss by 6,27 %. After reconfiguration of Tabanan feeder, the reliability index was better, for SAIFI is 5.2475 (disturbance / year) and SAIDI is 9,8798 (hour / year), the power loss was 2.82%. Sanggulan feeder is a new feeder reconfiguration result from Tabanan feeder, where the analysis was carried out to find out the reliability index of Sanggulan feeder, it was obtained the SAIFI value of 4.5753 (disturbance / year) and SAIDI of 9.5297 (hour / year) and power loss of 4,80%.

Co-Authors A. A. G. M. Pemayun A. A. T. B. Artawan A. Dharma Agus Satrya Wibawa Allan Ardiansyah Anak Agung Istri Pandawani Bagas Maruli Pangaribuan Bawa Adiputra Bima Aditya Putra C. G. I. Partha, C. G. I. C. G. Indra Partha Chandra Wimartono Manurung Derren, M. Edyama Vasabri Genta Maulana Etis Meilandari Gede Agus Ryzky Martha Gede Endrawadi Gesta Winantara Giusna Dipankara Kusnandar I Dewa Gede Wisnu Agung Bayuna I G.N. Evan Aditya Pramana I G.N.A.B Rama Wahyu Dewangga I Gede Agus Januar Ariawan I Gede Dyana Arjana I K Agus Setiawan I Kadek Adi Darmadi I Kadek Adi Febriana Putra I Komang Widi Astawa I Made Agus Artha Putra I Made Agus Sastradiangga I Made Arya Supartana I Made Gusmara Nusaman I Made Mataram I Made Wahyu Darmahesta I N Satya Kumara I N. Lanus I N. Surata I Nyoman Budiastra I Nyoman Candra Erawan I Nyoman Cita Artawa I Nyoman Gunantara I Nyoman Setiawan I Nyoman Suprapta Winaya I Nyoman Susanta I Nyoman Sutarja I P. A. Edi Pramana I Putu Adi Wirajaya I Putu Andithya Chrisna Budi I Putu Dedi Wiriastika I Putu Juliawan I W. A. Wijaya I Wayan Arta Wijaya I Wayan Eka Prastia I Wayan Rinas I. G. G. B. Prabu Wisesa I. K. A. Wijaya I. K. Wijaya I. W. Dhanan Arieyasa I.A. Dwi Giriantar I.B.G. Manuaba I.G. Surya Subaga I.N. Setiawan I.P. Dika Putra Ariantika I.P.A. Wiranata I.W.A Wijaya Ian Rahmadi Kurniawan IBG Manuaba Ida Ayu Dwi Giriantari Ida Bagus A. Swamardika Ida Bagus Gde Primayatna Indra Baskara Intan Aprilia Medina Jonathan Oliver Ken Julius Mahendra Sihombing Juniastra Gina K. Cakrawenda Yoga Laksana K.Amerta Yasa K.H. Priadi Kadek Agus Nata Riadnyana Kadek Bayu Kusuma Kholid Hidayatullah komang jaryanta aryamantara Kresna Hadi Wijaya Kumara, I. N. S. l Gusti Ngurah Janardana M.K. Huda Made Satria Tresnajaya Margareta Yuniari Mawadah Wr Febriyani Miguel Nazario Muhammad Fauzi N. A. Kartono N.W. Budiantari Nasrul Faisal Neysa Amelia Hutagalung Ngakan Putu Satriya Utama Nyoman Ananda Tri Utami Nyoman S Kumara Pande Ketut Sudiarta R. S. Hartati R.S. Hartati Reki Aji Saputra Richard Antony Suatan Rukmi Sari Hartati Sahabat Nazara Salman Al Farisi Sani Renartha Kusuma Sari, N. P. A. R. Sembiring, Rinawati Setiawan, I N. Setiawan, I. N. Sinaga, P. M. Solly Aryza Surung Rafael Sihaloho Suryo Aji Wicaksono Tjok Gede Indra Partha Virgunia, D. A. W. G. Ariastana Wahyudi Ernest Putra Wayan Agus Adi Widiastra Wayan Gede Ariastina Yoga Kusuma Wardhana Yohanes Made Arie Prawira

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