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PERANCANGAN PLTS UNTUK PERAHU NELAYAN TRADISIONAL SEBAGAI PENGGANTI GENSET I Putu Indra Saputra; I Nyoman Satya Kumara; Cok Gede Indra Partha
Jurnal SPEKTRUM Vol 6 No 4 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (435.809 KB) | DOI: 10.24843/SPEKTRUM.2019.v06.i04.p15

Abstract

Nelayan tradisional adalah nelayan yang menangkap ikan pada malam hari, menggunakan perahu kecil. Nelayan menggunakan lampu sorot halogen yang dicatu dengan genset kecil, untuk menarik perhatian ikan. Kendala yang dihadapi nelayan yaitu harga minyak yang semakin mahal, kelangkaan minyak, getaran dan suara berisik dari genset yang membuat ikan takut mendekat, konsumsi energi yang tinggi dari lampu sorot halogen, serta polusi udara dan emisi karbondioksida dari penggunaan genset. Solusi yang ditawarkan yaitu mengganti genset dengan PLTS. PLTS yang dirancang yaitu, 2×80 ???????? modul surya dirangkai seri, 10 ???? charger controller dan 2×70 ????? baterai dirangkai seri untuk menyuplai 4×30 ???? lampu sorot LED. PLTS ini mampu memenuhi kebutuhan energi sebesar 174,52 kWh/tahun, dari 175,2 kWh/tahun, jadi sebanyak 99,6 % kebutuhan energi telah mampu disuplai. Investasi awal sistem PLTS ini yaitu 10.639.500 rupiah, dengan pengurangan emisi karbondioksida sebesar 63.291.569 ????????/?????????????????.
PERENCANAAN PENAMBAHAN RELAY DIRECTIONAL EARTH FAULT (DEF) UNTUK GANGGUAN SATU FASA KE TANAH DI SALURAN 150 KV GARDU INDUK NUSA DUA – PESANGGARAN G. A. P. Yuni Maheswari; I Gede Dyana Arjana; Cok Gede Indra Partha
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 (454.095 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i03.p6

Abstract

Disruption of short circuit flow of one ground phase that occurred on the transmissionline 150 kV Nusa Dua-Pesanggaran Substation, causing blackouts to occur in the Nusa DuaSubstation area extending to the surrounding area. The disruption that occurred failed to besecured because the GFR (Ground Fault Relay) relay could not detect the presence of a currentinterference so it failed to work. Assisted relays are needed to secure short circuit flowinterference one phase to help the GFR relay, where the selected relay is the DEF (DirectionalEarth Fault) relay. Installation of auxiliary relays requires planning and relay setting steps toobtain Iset, TMS and trip time. Calculations that have been done get the results of the GFR relayworking at a minimum interference of 1,200A while the DEF relay works at a minimuminterference of 0.521A. The one-phase disruption detected on the 150 kV channel based on thesimulation is below 300A. Def relay will work after the GFR relay does not manage to detectinterference of one phase of the land with a time span of 0 - 0.3 seconds.
PEMANFAATAN UDARA BUANG EXHAUST FAN UNTUK PEMBANGKIT LISTRIK TENAGA BAYU DENGAN PENGARUH PENAMBAHAN HONEYCOMB BERBASIS ATMEGA 2560 Yoga Kusuma Wardhana; Cok Gede Indra Partha; I Wayan Sukerayasa
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 (563.444 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i01.p18

Abstract

Energy needs are increasing from year to year in line with the increasing population,economic growth, and high energy consumption. More than 86% of the world's energy todaycomes from fossil fuels, while the world's energy demand is increasing. One of theconsiderations for overcoming pollution caused by fossil fuels is to seek alternative energysystems. More than 90% of the energy that affects greenhouse gas emissions is the result ofburning fuels globally. Exhaust Fan is a good system for wind power extraction. This air exhaustsystem is suitable for power plants with wind turbines as a drive where the resulting wind speedis higher and consistent when compared to natural wind, but has turbulent characteristics. Thiswind is not good for the wind turbine. A honeycomb is a tool used to reduce this turbulentcharacteristic. The results obtained by the addition of a hexa type Honeycomb to the exhaustfan with a speed of 6m/s using a savonius type turbine, there was a decrease in turbine speedwhich was previously unstable between 952 to 1007 rpm to 866 rpm and the generator outputpower decreased by 0.3 watts. The addition of Honeycomb makes the turbine rotate speedstable at 866 rpm and the wind flow becomes laminar.
STUDI ANALISIS SETTING RELAY PENGAMAN DI PENYULANG NGURAH RAI I DAN PENYULANG NGURAH RAI II I.K. Sutarjana; I.G.D. Arjana; T.G.I. Partha
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 (1184.291 KB)

Abstract

Permasalahan gangguan di jaringan distribusi 20 kV seringkali menyebabkan terputusnyapasokan daya listrik kepada pelanggan. Salah satu penyebab keandalan sistem kurang baik adalahkesalahan koordinasi setting relay pada penyulang. Seperti yang terjadi pada penyulang Ngurah Rai Idan Penyulang Ngurah Rai II dimana terdapat kesalahan koordinasi setting antara relay pada pangkalpenyulang yang terletak di Gardu Induk (GI) dengan relay pada di ujung jaringan yang terletak diGardu Hubung (GH). Untuk memecahkan masalah tersebut maka perlu dianalisis setting relay yangsudah ada (eksisting). Untuk membuktikan koordinasi setting relay sudah sempurna, maka akandilakukan simulasi menggunakan bantuan program computer yaitu Electrical Transient AnalysisProgram (ETAP). Dari hasil analisis diperoleh nilai setting dimulai dari setting Over Current Relay(OCR) pada pangkal penyulang (GI) 360 A dan Tms 0,36 sedangkan untuk nilai setting arus OCRpada ujung penyulang (GH) yang menggunakan relay directional 330 A dan TMS 0,16. Kemudianuntuk setting GFR pada pangkal penyulang (GI) diperoleh nilai 34 A dan TMS 0,2. Sedangkan settingGFR pada ujung penyulang (GH) yang menggunakan relay directional diperoleh nilai 31 A dan TMS0,1.
SELF-STABILIZING 2-AXIS MENGGUNAKAN ACCELEROMETER ADXL345 BERBASIS MIKROKONTROLER ATmega8 I Nyoman Benny Rismawan; Cok Gede Indra Partha; Yoga Divayana
Jurnal SPEKTRUM Vol 2 No 3 (2015): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

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Abstract

Penelitian ini mengembangkan piranti Self-Stabilizing 2-Axis menggunakan accelerometer ADXL345 berbasis mikrokontroler ATmega8. Piranti ini terdiri dari dua frame yaitu frame-stabil dan frame- bebas. Frame-stabil difungsikan untuk menunjang beban dan frame-bebas untuk menerima input perubahan kemiringan. Seluruh komponen elektronik dan mekanik ditempatkan pada frame-bebas guna mengurangi beban pada frame-stabil. Accelerometer ADXL345 diimplementasikan untuk mendeteksi kemiringan (x,y). Dua motor servo digerakan mikrokontroler berdasarkan nilai sensor untuk mencapai posisi stabil. Penelitian ini mendapatkan bahwa piranti Self-Stabilizing 2-Axis mendeteksi kemiringan dan menampilkan nilai kemiringan pada Liquid Crystal Display serta dapat menstabilkan frame-stabil ketika bagian luar alat mengalami perubahan kemiringan dari +90o hingga -90o. Hasil pengujian beban maksimal ±750 gram. Self – Stabilizing 2-Axis mendeteksi kemiringan dengan kesalahan 0,45 % pada sumbu X dan 0,05% pada sumbu Y.
ANALISIS RESETTING PROTEKSI OVER CURRENT RELAY, GROUND FAULT RELAY DAN RECLOSER PADA PENYULANG ABANG DAN FEEDER AMED SETELAH REKONFIGURASI A. A. Gde Agung Semarabawa; Tjok. Gede Indra Partha; I Gede Dyana Arjana
Jurnal SPEKTRUM Vol 6 No 4 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (407.185 KB) | DOI: 10.24843/SPEKTRUM.2019.v06.i04.p6

Abstract

Abang feeder receives electricity supply from transformer II 30 MVA GI Amlapura with a line length of 23 kms and has 67 distribution substations with data losses of 0,574 MW. Reducing losses, increasing reliability and continuity, one way to do this is to reconfigure feeders. The feeder reconfiguration will affect the value of the feeder impedance, so the resetting of the Over Current Relay, Ground Fault Relay and Recloser protection systems is needed. Resetting the protection of Amed OCR feeder obtained t value = 0.1 seconds, OCR recloser Tirtagangga obtained t value = 0.2 seconds, and Oang feeder Abang obtained t value = 0.3 seconds. Resetting the protection of the Amed GFR feeder obtained a value of 0.1 seconds, GFR recloser Tirtagangga 0.2 seconds, and GFR feeder Abang 0.3 seconds. The simulation results using the ETAP program are known to coordinate OCR, GFR and recloser already working well with grading time values ? 0.3 second, so it will not cause overlap or trip simultaneously.
STUDI INTENSITAS MEDAN LISTRIK DI SUTT 150 kV KONFIGURASI VERTIKAL UNTUK LINGKUNGAN PEMUKIMAN I.N.Y. Prayoga; A.A.N. Amrita; C.G.I. Partha
Jurnal SPEKTRUM Vol 2 No 4 (2015): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (386.209 KB)

Abstract

Rekomendasi pembangunan rumah yang aman di bawah SUTT 150 kV konfigurasi vertikal dibutuhkan untuk menghindari paparan medan listrik yang dapat menyebabkan gangguan kesehatan manusia sesuai dengan standar yang telah ditetapkan oleh SNI dan WHO yaitu sebesar 5 Kv/m. Perhitungan kuat medan listrik pada 9 titik di bawah SUTT 150 kV konfigurasi vertikal menunjukkan kuat medan listrik tertinggi berada pada andongan terendah diantara 2 tiang SUTT. Rekomendasi pembangunan rumah pada andongan terendah sampai ketinggian lantai 4 meter dari permukaan tanah dengan intensitas medan listrik sebesar 4,75 kV/m. Intensitas medan listrik terendah berada tepat di bawah tiang SUTT dan direkomendasikan pembangunan rumah sampai ketinggian lantai 7 meter dari permukaan tanah dengan intensitas medan listrik sebesar 4,95 kV/m.
ANALISIS SISTEM PENGAMAN BACKUP UNTUK MENGAMANKAN BUSBAR 150 Kv TERHADAP GANGGUAN DI GIS PECATU I Nyoman Wardana; I Gede Dyana Arjana; Cok. Gede Indra Partha
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 (999.846 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i04.p5

Abstract

High power needs in badung area, especially Pecatu and Nusa Dua resulted in theneed for GIS development to increase power supply. GIS Pecatu uses a double busbar withOCR as its Backup safety, if one of the busbars is disrupted and there is no protection rele thatsecures the busbar, it will result in continuous power flow is disrupted.In this study, an analysis of the rele busbar setting and the appropriate protectionsetting as a reference protection system in GIS Pecatu. The results of the calculation of currentsetting obtained the working current value (Iset) OCR of 1339 A and (Iset) GFR 223 A anddelay time 0.53 seconds, actual working time rele 0.35 Standard Inverse, and the value of shortcircuit interference current calculation from PLN 11.58 kA and based on simulation resultsobtained 11.46 kA with a percentage of errors of 0.12%.
RANCANG BANGUN SISTEM PEMANEN ENERGI EXHAUST FAN DENGAN DIFFUSER TURBIN ANGIN SUMBU HORIZONTAL Edyama Vasabri Genta Maulana; I Wayan Sukerayasa; Cok Gede Indra Partha
Jurnal SPEKTRUM Vol 8 No 2 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (551.11 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i02.p21

Abstract

Utilization of waste energy from exhaust fan air needs to be optimized considering thereis great potential where exhaust fan is widely used in the industrial sector. Exhaust wind fromexhaust fan can be utilized to generate electricity with horizontal wind turbine. Thecharacteristics of exhaust energy from exhaust fan that spreads and has medium to low speed,therefore its requires an optimization to get maximum wind energy from exhaust fan, one ofthem by the addition of a diffuser that can increase the performance of wind turbines byfocusing the wind around the rotor. Designing diffuser conducted using AutoDesk Inventor andsimulation CFD (Computational Fluid Dynamic) with SolidWorks. The results of this studyindicate, horizontal wind turbine with diffuser can increase wind turbine power up to 47.61% andincrease turbine rotational speed (rpm) up to 23.48% compared to wind turbines without adiffuser.
RANCANG BANGUN MONITORING DAN PENYIMPANAN NILAI DAYA LISTRIK SECARA REAL TIME PADA BASIS DATA I Dewa Gde Bayu Wiranatha; Cok Gede Indra Partha; Widyadi Setiawan
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 (524.345 KB) | DOI: 10.24843/SPEKTRUM.2018.v05.i01.p20

Abstract

Hotel management to monitor the energy to know the electrical energy consumption at the hotel. Energy monitoring is carried out in order to achieve the efficient use of electrical energy, for accurate energy monitoring requires a tool that can monitor the power consumption in real time and store on digital media or database so easy to access. Data stored on the database using the help of microcontroller and Ethernet Shiled connected to the LAN network. The sensors used in this research are voltage down 220VAC: 9VAC and current sensors with maximum current capacity of 100 A. The result of data recording is the highest current sensor deviation of 2.4% and the highest voltage sensor deviation is 0.4%.
Co-Authors A. A. Gde Agung Semarabawa A. I. Weking A.A Ngurah Amrita Adi Prasetyo, Wibisono Agung, I Gusti Agung Putu Raka agus mardiana putra Agus Teja Ariawan Ahmad Fauzi Anak Agung Istri Pandawani Anak Agung Ngurah Wanda Ariesta Angga Tata Pradana, I Putu Ariany Frederika Aryasuta, I Ketut Bima Aditya Putra D. Sitompul Daton Trisnadana, I Nyoman Deoka Gusti Dewa Gede Uki Atmaja Dewa Made Rian Sanjaya Dewa Putu Yudha Prawira Duman Care Khrisne Dwi Girantari, Ida Ayu Edyama Vasabri Genta Maulana Eka Pratama, I Gusti Putu Eka Yulia Indri Christanti G. A. P. Yuni Maheswari G. D. Arjana Gordon Arifin Sinaga I Dewa Gde Agung Budhi Udiana I Dewa Gde Bayu Wiranatha I Dewa Gede Bayu Satya Nugraha I Gd. Dyana Arjana I Gede Budiyasa I Gede Dyana Arjana I Gede Eka Saputra I Gst Agung Putu Raka Agung I Gusti Ngurah Kade Suwiherawan I Kadek Rogan Bayu Candra Dwipa I Kadek Wisnu Wirawan I Ketut Aryasuta I Made Agus Artha Putra I Made Bagas Sastra Negara I Made Deny Setiawan I Made Mataram I N Satya Kumara I Nyoman Benny Rismawan I Nyoman Budiastra I Nyoman Setiawan I Nyoman Sutarja I Nyoman Wardana I P. G. Eko Putra I Putu Agus Kumara Putra I Putu Dimas Darma Laksana I Putu Gede Aras Widya Pratama I Putu Gede Mahendra Sanjaya I Putu Indra Saputra I Putu Weda Jayanthana I W. A. Wijaya I Wayan Alit Wigunawan I Wayan Arta Wijaya I Wayan Arta Wijaya I Wayan Arta Wijaya I Wayan Artha Wijaya I Wayan Sastrawan I Wayan Sukerayasa I Wayan Sukerayasa I Wayan Widhiada I. W. Dhanan Arieyasa I.M. Suartika I.N.Y. Prayoga I.W.A Wijaya I.W.A. Wijaya Ida Ayu Dwi Giriantari Ida Bagus A. Swamardika Ida Bagus Gede Manuaba Ignatius I Wayan Rexci Indra Parmana Ilham Affandy Janardana, I G N Janardana, I Gusti Ngurah Kadek Bayu Kusuma Karim Mewal, Karel A Kheri Arionadi Komang Budiarta Kresna Dharma Yudha, A.A. Gede l Gusti Ngurah Janardana M, I Gede Mahardika Made Dwi Krisna Putra Sudiharta Made Niantara Riandana Made Niken Ayu Larasati Danianto Made Satria Tresnajaya Mangun Yasa, Made Galang Manuaba, Ida Bagus Gede Mawadah Wr Febriyani Muhammad Namiruddin Al Hasan Natih Evan Bayu, I D G Ngakan Putu Satriya Utama Paisal, Muhammad Pratama, I Putu Indra Putu Agung Ananta Wijaya Putu Angga Juliantara Putu Arya Mertasana Putu Quentin MP Putu Wira Asta Dharma Quentin MP, Putu Raden Ajeng Gusti Ramadhianti Reki Aji Saputra Riyan Bhaskara Surya A, I.B Rizal Akbar Fauzany Rizal Arifin, Ahmad Sahabat Nazara Saputra, I Gede Eka Sianturi, Roni Sitanggang, Rafael Sukerayasa, I W Suta Adya Dharma Triandani Ayuningsih, Ni Nyoman W. Arta Wijaya Wayan Reza Yuda Ade Putra Wiawan Adhi Guna, I Putu Gede Widyadi Setiawan Wikan Pradnya Dana, Gde Wirawan, I Kadek Wisnu Yoga Divayana Yoga Kusuma Wardhana