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All Journal Buletin Udayana Mengabdi Jurnal SPEKTRUM Majalah Ilmiah Teknologi Elektro Majalah Ilmiah Teknologi Elektro

I Gede Dyana Arjana

Teknik Elektro Fakultas Teknik Universitas Udayana

Author-ID : 2932524

Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering

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Analisa Rekonfigurasi Jaringan Distribusi 20 kV Pada Penyulang Berawa Untuk Menurunkan Losses dan Drop Tegangan Penyaluran Tenaga Listrik I Gusti Nyoman Indra Wiguna; I Gede Dyana Arjana; Tjok. Gede Indra P
Jurnal SPEKTRUM Vol 6 No 2 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Peak load on Berawa Feeder is very high exceeding the maximum limit set by PLN which causes Losses and high voltage drop values, so reconfiguration of Repeater via LBS Canggu Club and LBS Damai Residance is carried out, using 3 distribution points. The flow before being reconfigured in the Swamp Feeder was 242A to 180.2A, while the previous Bumbak Feeder was 82A to 144.7A. losses previous deliveries of Bumbak Feederwere 5.2kW to 22.15kW, while previous Berawa Berulang was 117.1kW to 55.11kW, drop the previous Bumbak Feeder voltagewas 102kVA to 24kVA, whereas the previous Swamp Feeder was 775.4kVA to 490.2kVA. Load surges and decreases are caused by changes in load and channel length after being reconfigured.

ANALISA LIGHTNING ARRESTER AKIBAT UPRATING TRANSFORMATOR 150/20 kV DARI 30 MVA KE 60 MVA DI GARDU INDUK SANUR Dewa Putu Yudha Prawira; I Gede Dyana Arjana; Cok Gede Indra Partha
Jurnal SPEKTRUM Vol 5 No 2 (2018): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Salah satu Transformator di Gardu Induk Sanur mengalami uprating dari kapasitas 30 MVA menjadi 60 MVA. Bertambahnya kapasitas transformator tidak diikuti dengan uprating peralatan pengaman surja atau lightning arrester, sehingga perlu adanya kajian untuk mengetahui hal tersebut. Metode teori pantulan berulang dengan diagram tangga digunakan untuk mengetahui lightning arrester pada saat memotong kecuraman gelombang tegangan surja. Uprating Transformator diketahui berpengaruh terhadap lightning arrester. Lighning arrester pada transformator 30 MVA memiliki waktu percik 9,18 ?det, arus pelepasan 3,35 kA, dan tegangan kecuraman gelombang tertinggi tiba pada transformator 666,8 kV, sedangkan lighning arrester pada transformator 60 MVA memiliki waktu percik 8,14 ?det, arus pelepasan 3,98 kA, dan tegangan kecuraman gelombang tertinggi tiba pada transformator 816,8 kV atau sebesar 8,9 % diatas TID transformator tetapi tidak melewati standar yang diizinkan sebesar 20 % dari TID, Lightning arrester tidak diganti karena masih mampu mengisolasi transformator 60 MVA pada jarak tetap antara lightning arrester dengan transformator

ANALISIS KINERJA UNDER FREQUENCY RELAY PADA SUBSISTEM KELISTRIKAN BALI SAAT KONDISI ISLAND OPERATION Fajar Rizky Kurniawan; I G. Dyana Arjana; Rukmi Sari Hartati
Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

An electric power system will get overload disturbance if a plant that was previouslyable to supply power to a system that is outage, causes other plants that are still operating tohave the entire load of the system. This study aims to see the performance of under frequencyrelay (UFR) that has been installed in the Bali system in overcoming overload disturbances,namely in the form of generator outages according to the scenario that has been made. Themethod used is to model the load shedding scheme using UFR in software and run according tothe scenario. The scenario referred to is a disturbance that causes one or more generators toexperience blackouts due to disturbances. The results of the analysis show that under thefrequency relay (UFR) installed in the Bali system it cannot return the system frequency to itsnormal state, namely the system has a shortage of generating power with a steady statefrequency below 49.8 Hz in the 3rd, 4th fault scenarios. , and the 5th while the system hasexcess power generation with a stable state frequency above 50.2 Hz at the 9th and 10thdisturbances.

PERBANDINGAN KOMBINASI FUNGSI PELATIHAN JARINGAN SYARAF TIRUAN BACKPROPAGATION PADA PERAMALAN BEBAN Gede Teguh Pradnyana Yoga; Gede Dyana Arjana; I Made Mataram
Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Electricity system planning is very important for electricity providers (PLN). One of them is electricity load forecasting. Backpropagation artificial neural network is one of the best methods used in electricity load forecasting because it can give high accuracy values. In application, backpropagation neural networks often provide poor convergence speed values during the training process. Therefore, it is necessary to do various combinations of training functions to accelerate the convergence of network training. In this study, a backpropagation neural network model was developed with a combination of gradient descent training functions (traingdm, traingda, traingdx). The architecture of this network model uses 24 inputs, 1 hidden layer consisting of 16 neurons and 1 output. This model uses peak load data from Pemecutan Kelod Substation and the number of kWh sold in the South Bali area as an input variable. The results show that the best model of the neural network is using the traingdx training function. In this model, the MSE training is 1.03x10-8 and with a training convergence speed is 4 seconds and MAPE testing is 6.24% with a network accuracy is 93.75%.

STUDI KERJA PROTEKSI RELAI OCR DAN GFR PADA PENYULANG ULUWATU SETELAH REKONFIGURASI Galih Budi Santosa; I Gede Dyana Arjana; I Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 8 No 3 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

PT. PLN (Persero) South Bali Area built the Pecatu GIS to level the load, improve serviceand reliability of the electricity distribution system. The transfer of electrical loads to the PecatuGIS changes the configuration of the Pecatu feeder to the Uluwatu feeder and the Labuan Saitfeeder. Changes in load current and network impedance have an impact on short-circuit faultcurrents. The calculation of short-circuit fault current becomes the basis for determining theworking time of the OCR and GFR relays between the recloser and the feeder base PMT. Therelay working time based of the PLN regulation setting protection at 0,1 seconds to eliminatefault currents and IEC 60255 standard take 0,3 seconds to eliminate fault currents. The resultsof the study showed that the time value of PLN's regulation Tms was 0,076 SI and 0,033 SI.The results of the calculation of (Tms) standard IEC 60255 obtained time (Tms) 0,23 SI and0,09 SI. The simulation results of the PLN regulation relay settings and IEC 60255 work wellwith a grading time value of 0,2 – 0,4 seconds.

STUDI PENGARUH REKONFIGURASI JARINGAN TERHADAP DROP VOLTAGE MENGGUNAKAN METODE GA DI BANDARA NGURAH RAI F. Iskandar; I G.D Arjana; W. Setiawan
Jurnal SPEKTRUM Vol 2 No 2 (2015): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

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Berdasarkan perkembangan ilmu dan teknologi pada bidang kelistrikan dan pemrosesan data-data menuntut perbaikan kualitas daya listrik yang baik. Kualitas daya listrik yang baik digunakan untuk menjaga kestabilan alat-alat listrik. Terdapat beberapa gangguan pada sistem jaringan distribusi pada Bandara diantaranya drop voltage yang terjadi secara tiba-tiba. Pada penelitian ini dilakukan analisis penurunan drop voltage pada jaringan distribusi di Bandara Ngurah Rai. nilai drop voltage diperbaiki dengan cara membenahi keseimbangan beban. Pembagian beban 3 fase pada jaringan distribusi yang optimal ini menggunakan metode Genetika Algoritma (GA). Posisi fase R, fase S, dan fase T dapat dikodekan dengan bilangan desimal dan disusun dalam satu kromosom. Pada peroses optimasi ini menggunakan operator Genetika dan daya 3 fase. Pada hasil analisis diperoleh drop voltage terkecil dengan menggunakan metode GA ialah 0,0082% pada saluran XLPE_7 yang disuplai dengan fase R, S, T, yaitu kode 1, hal ini di sebabkan panjang saluran pada XLPE_7 paling kecil sehingga terjadi drop voltage terkecil.

ANALISIS LIGHTING ARRESTER UNTUK MENGAMANKAN BUSBAR 150 kV TERHADAP GANGGUAN SURJA PADA GIS PECATU I Putu Agus Kumara Putra; I Gede Dyana Arjana; Cok. Gede Indra Partha
Jurnal SPEKTRUM Vol 8 No 4 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

GIS (Gas Insulated Switchgear) Pecatu is one of the GI built by PT. PLN (Persero) toprovide energy continuity to its customers. In the GIS Pecatu there is no lighting arrester (LA)because the equipment in the GIS Pecatu is located indoors. Where there is only LA from thedirection of the GI Nusa Dua to the GIS Pecatu with a distance of 12.08 km, so it is necessaryto do study to find out whether the LA from the GI Nusa Dua direction to the GIS Pecatu canprotect the busbar from the traveling wave of lightning surge .The results of the analysis showed using the software simulation method that LA fromthe direction of the GI Nusa Dua to the GIS Pecatu has been able to protect the GIS Pecatubusbar. Simulation results obtained that the current passing through the 150 kV busbar of 1,219kA and the voltage on the busbar during a lightning surge of 4 kV. The voltage on the busbarand the current through the busbar during a surge is still within the tolerance of the maximumsystem voltage of 170 kV and the current ratio of 4 kA.

ANALISIS RESETTING RELE JARAK AKIBAT UPRATING KONDUKTOR GIS PESANGGARAN - GI SANUR Rizal Akbar Fauzany; I Gede Dyana Arjana; Cok Gede Indra Partha
Jurnal SPEKTRUM Vol 6 No 2 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Increased load current on the Pesanggaran – Sanur transmission line by 333,536 Ampere or 83,384 % of the current carrying capacity caused the uprating conductor from ACSR Partridge 135 ????????2 into ACCC Lisbon 310 ????????2. Upratingj cause changes in impendance value. This change affects the zone reach protection of GIS Pesanggaran – GI Sanur distance relay which overlaps with Zone protection of GI Sanur – GI Gianyar distance relay. Resetting is done by recalculation according the distance relay rules and the result are tested with short circuit at 86 % Pesangaran – Sanur transmission line. Resetting result shows the distance relay operate appropriately according with the IEEE Standard C37.113-2015.

OPTIMASI UNIT PLTU BERBAHAN BAKAR BATUBARA MENGGUNAKAN METODE LAGRANGE DI PT. INDONESIA POWER UP SURALAYA A.S. Murti; I.B.G. Manuaba; I.G.D Arjana
Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

The magnitude of the need for a load, the characteristics of a plant, the max and min limits of generating capacity, as well as the expenditure for fuel for each generating unit economically influences the operation of the plant. The purpose of this research is to obtain the minimum generation cost in a certain loading conditions on the power system by the Lagrange multiplier. Loading data used are data on May 14, 2018 at 07.00 WIB.The final results show that, with a total generation of 2644 MW, the costs must be incurred in the amount of Rp1,180,776,616.22 while the lagrange method used to optimize the plant, the cost of generation is Rp1,160,220,968.97. The amount of savings that can be done for one hour is 07.00 WIB which is Rp. 20,555,647.26. From the studies that have been carried out it can be concluded that the Lagrange method is able to produce a minimum generation cost which is quite good compared to the cost of real generation.

DESAIN SISTEM OTOMATISASI POMPA MENGGUNAKAN PICOBOX DI PDAM KOTA DENPASAR Dewa Gede Uki Atmaja; Cok Gede Indra Partha; I Gede Dyana Arjana
Jurnal SPEKTRUM Vol 7 No 3 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

One of the uses of water resources can be done through the Regional Water Company(PDAM). Equipment needed in a water supply system that uses wells as a source of waterinclude well pumps, booster pumps, and pump control systems so that the pumps can workeffectively and efficiently. The Operation and Maintenance Section is still using a manualsystem in carrying out its duties by coming to the location and immediately conducting aninspection. This study designed a pump automation system with Aplus Massenger picobox toolusing an SMS service. The pump automation system consists of a series of microcontrollers,GSM modules, RTC modules, and electric current sensors. SMS information on the value of theload current at the distribution substation is sent by the pump automation system according tothe sensor reading information and the time information set on the system. The load currentnotification system can provide an SMS warning of a disturbance of the load current at thedistribution substation. This pump automation system is carried out in the Treatment Room ofthe Water Treatment Pump Distribution Unit in the Denpasar City PDAM, with the result of anSMS reply in the form of "load current: 30-10-2019” is R = 64 Amperes, S = 63 Amperes, T = 64Amperes to receive the information about the value of the load at the distribution substation.

Co-Authors A A Gd Maharta Pemayun A. A. Gde Agung Semarabawa A. I. Weking A.A Ngurah Amrita A.S. Murti Ahmad Fauzi Alfian Hadianto Anak Agung Gede Maharta Pemayun Anak Agung Ngurah Wanda Ariesta Antonius Ibi Weking Arya Surya Darma bagus widyananda yoga Bhrama Sakti K.P. Cok Gede Indra Parta Deoka Gusti Dewa Gede Uki Atmaja Dewa Made Rian Sanjaya Dewa Ngakan Made Barel Dewa Putu Yudha Prawira Diky Wahyu Kusuma Budi F. Iskandar Fajar Rizky Kurniawan G. A. P. Yuni Maheswari Galih Budi Santosa Ganggas B Maulana Idham Gede Teguh Pradnyana Yoga Hery Samudra I Dewa Gde Agung Budhi Udiana I Gede Gerry Julius Perdana I Gede Krisnayoga Kusuma I Gede Riana I Gede Wiyoga Putra I Gusti Agung Putra Sanjaya I Gusti Ngurah Kade Suwiherawan I Gusti Nyoman Indra Wiguna I K. Windu Iswara I Kadek Agus Yodha Bhaskara I Kadek Dodik Darma Putra I Kadek Rogan Bayu Candra Dwipa I Ketut Ariek Astana Adi I Komang Anom Astana Ady I Made Adi Purwa Adnyana I Made Deny Setiawan I Made Dian Purnawan I Made Dwi Cahyadi Jaya I Made Mataram I Made Suartika I N Satya Kumara I Nyoman Budiastra I Nyoman Julyantara I Nyoman Setiawan I Nyoman Sutarja I Nyoman Tri Juliarta I Nyoman Upanayana I Nyoman Wardana I Putu Adi Sumastra I Putu Agus Kumara Putra I Putu Arya Suardika I Putu Dimas Darma Laksana I Putu Gede Aras Widya Pratama I Putu Weda Jayanthana I W Rinas I Wayan Agus Teja Baskara I Wayan Alit Wigunawan I Wayan Arta Wijaya I Wayan Artha Wijaya I Wayan Rinas I Wayan Sastrawan I Wayan Sukerayasa I Wayan Swi Putra I Wayan Yoga Prasetya I. N. Partawan I.B.G. Manuaba Ian Rahmadi Kurniawan Ida Bagus A. Swamardika Komang Dody Pramudya Indra Jaya l Gusti Ngurah Janardana M. N. Hanifan M. Nordiansyah Made Ananta Pradnya Made Dwi Krisna Putra Sudiharta Made Niken Ayu Larasati Danianto Nur Ayu Puspita Indra Pratiwi Nyoman Ananda Tri Utami Putu Agus Satriya Guna Adnyana Putu Arya Mertasana Rizal Akbar Fauzany Rukmi Sari Hartati S.K. Supriana Tjok Gede Indra Partha Tjok. Gede Indra P W. Arta Wijaya W. Setiawan Widyadi Setiawan Wikan Pradnya Dana, Gde yoga armika

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