cover
Contact Name
Nyoman Gunantara
Contact Email
gunantara@unud.ac.id
Phone
+6281558140279
Journal Mail Official
gunantara@unud.ac.id
Editorial Address
Program Studi Teknik Elektro Fakultas Teknik - Universitas Udayana d/a. Kampus Bukit Jimbaran Bali - 80364 Phone/ Fax: +62 361 703315
Location
Kota denpasar,
Bali
INDONESIA
Jurnal SPEKTRUM
Published by Universitas Udayana
ISSN : 23023163     EISSN : 26849186     DOI : -
Jurnal SPEKTRUM is peer review journal, published four times a year by the Department of Electrical Engineering, Faculty of Engineering, Universitas Udayana. This journal discusses the scientific works containing results of research in the field of electrical, include: power systems, telecommunications, computers, informatics, controls, and electronics. Authors are expected to include original scientific papers in accordance with the scope of the discussion of this journal including all aspects of the theory and practice are used.
Articles 677 Documents
ANALISIS KEANDALAN SISTEM PADA PENYULANG SABA SETELAH REKONFIGURASI Surya Ramachandra; I Wayan Rinas; I Nyoman Setiawan
Jurnal SPEKTRUM Vol 7 No 3 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (528.469 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i03.p12

Abstract

The Saba feeder is one of the feeders located in the PLN working area of the East Bali Area,which is located around the villages of Saba, Blahbatuh and Blangsinga in the district of Gianyar.This feeder has 75 transformers with a capacity of 25-500 kVA that are connected by SUTM,SKUTM, MVTIC and ground cable lines. The reliability of the system in the Saba Feeder in thecondition before being reconfigured, with a SAIFI value of 3.02 interruptions in one year, the SAIDIvalue is 9.28 hours per year, while for the CAIDI value is 3.24 hours per one time, which is notcaused by maintenance. PT. PLN Persero regulated in SPLN No. 59 of 1985 and the target of PT.PLN PERSERO to achieve WCC or World Class Company standards, namely the value of SAIFI 3times interruption in one year, SAIDI 3 hours of interruption in one year and CAIDI value of amaximum of 3 hours of non-availability of electricity to customers. So the value of SAIFI PenyabaSaba before reconfiguration is in accordance with PLN standards, while the value of SAIDI andCAIDI Penyaba Saba conditions before reconfiguration is still outside the PLN standard to achieveWCC. Therefore, a network reconfiguration was done to improve the SAIDI and CAIDI values in theSaba Feeder to conform to SPLN No.59 of 1985. After the network reconfiguration of the Sabafeeder, changes in the SAIFI value, SAIDI and CAIDI on the Saba Feeder could improve, with theSAIFI value namely 2.73 disturbances per year, SAIDI value of 2.98 hours per year and CAIDIvalue of 1.08 hours per customer, so the reliability value in the Saba Feeder can be said to bereliable because it is in accordance with SPLN No. 59 of 1985.
PEMBUATAN DAN PENGGUNAAN ALAT KONVERTER UNIVERSAL OSILOSKOP SEBAGAI PERALATAN KATAGORI 2 PADA PRAKTIKUM ELEKTRONIKA DAYA I Wayan Lastera; I Putu Arsikaputra
Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (310.93 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i04.p22

Abstract

To display electric waveforms in power electronics practicum, the instrumentused is an oscilloscope. With the limited range of test voltages from oscilloscopes themeasurement results for the power electronics lab are not good enough. To improvethe results of practicum, one effort that can be done is by making an universalconverter oscilloscope tool. The potential of this universal converter tool can beidentified by using it in uncontrolled AC electricity testing, controlled AC electricitytesting, uncontrolled DC electricity testing and controlled DC electricity testing. The testdata obtained are tabulated and analyzed descriptively, in order to be able to see andbe able to infer the potential of the oscilloscope universal converter. The test resultsshow that the use of an oscilloscope universal converter able to improve themeasurement results for power electronics practicum, proven to be able to be used inAC and DC mains voltage either uncontrolled or controlled with normal waveformdisplay, so that it can be used as category 2 equipment in the power electronicspracticum, in order to add equipment to the laboratory.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (394.973 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i03.p3

Abstract

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.
SISTEM NOTIFIKASI SWITCH BERBASIS TEKNOLOGI WIRELESS Janice Jessica Indrayani; Nyoman Pramaita Nyoman Pramaita; I Made Oka Widyantara
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 (313.722 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i01.p22

Abstract

This research develops a remote switch notification system by utilizing radio waves. This system will usethe RF433 module and RF315 module as the transmission medium, the HT12E module as the encoderand the HT12D module as the decoder. The working principle of the system is that the sending partsends a signal when the voltage is applied via a push button, then the switch is sent to the part of theroom and activate the relay. Then in the relay there is also an encoder that will recode the data on therelay that the relay is active and resend the data to false senders so that the LED as notification will turnon. Based on the test results it is known that the remote switch notification system that has beendesigned is able to turn on and turn off the relay and also be able to transmit the notification properly.
SISTEM PESAWAT TANPA AWAK MENGGUNAKAN KAMERA THERMAL UNTUK MEMBANTU PENCARIAN KORBAN BENCANA ALAM I Gede Feryanda Frasiska; Ir. I Nyoman Budiastra, MKes., MT; Pratolo Rahardjo, S.T.,M.T.
Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (435.547 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i04.p13

Abstract

In Indonesia, the weather is influenced by seasons, namely the dry season and the rainyseason. Apart from weather, natural disasters can also occur due to the earth's tectonicpatterns, either in the form of tsunamis or earthquakes. Every natural disaster will have adetrimental impact on society both economically and socially. The impact of a disaster like anearthquake is the collapse of buildings. Collapsed buildings due to earthquakes can leave largenumbers of people dead or buried in the rubble. The evacuation process of post-disaster victimsmust be carried out immediately to reduce the risks posed by the disaster, such as the numberof casualties caused by delays in the evacuation process. Based on these problems,researchers are motivated to create a technological innovation that can help the SAR team iinthe processs of detecting victims from debris through the air by detecting the victims bodytemperature, the number of victims and showing the coordinates of the victim's position.disaster victims. The tool is called DROPBA, which is an Unmanned Aircraft System or UAVthat uses thermal cameras to help search for victims of natural disasters. The SAR team at thepost will control DROPBA or Unmanned Aircraft to detect disaster victims who are in the wreck,and inform the SAR team information wirelessly in the form of a path to the position of thedisaster victim. The design results are in the form of a 3-dimensional model image from the DROBA tool and the components and camera systems used are a thermal camera connectedto the Raspberi pi system and image processing using Open CV.
MODUL PRAKTIKUM JARINGAN EIGRP Marcus Mulyadharma Weking; Pande Ketut Sudiarta; I Putu Ardana
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 (542.485 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i01.p13

Abstract

Writing a thesis report with the title EIGRP Network Practicum Module aims to increase theknowledge and skills of Udayana University Electrical Engineering students, especially thosewho concentrate on Telecommunication Engineering and Multimedia Networks in managing theEIGRP network and this thesis is also the requirements for graduation from the final level ofundergraduate or S1 lectures. The lack of learning media related to this protocol makes itdifficult for students to understand how the EIGRP dynamic route protocol works. It is importantto learn the EIGRP dynamic route protocol because it is useful in managing building-scalenetwork routes and between buildings. The EIGRP experiments carried out in the practicummodule are divided into several variations with the general purpose of understanding how theEIGRP protocol works, configurations, and variables. This practicum also contains how EIGRPworks using metrics as a benchmark in determining the best possible route along with analyzingmetrics using mathematical equations. The EIGRP network practicum module has been testedon 10 practitioners who are selected students on the condition that these students have studiedand mastered network fundamentals and routing concepts in the Telecommunication NetworkEngineering course. Practical activities in the sequence are working on preliminary reports, pretests,practical module experiments, final reports, questionnaires, and post-tests. In generalterms, this practicum module is deemed capable of increasing the understanding of thepractitioner regarding the EIGRP protocol. The work stages in this practicum module are easyto understand and follow by the practitioner. 7 out of 10 practitioners strongly agree if theEIGRP network practicum module applied to the Telecommunication Network Practicum Course.
ANALISIS DESAIN DAN PERHITUNGAN LAMPU PENERANGAN JALAN BERBASIS KENYAMANAN DAN KEAMANAN I Ketut Wijaya; I Made Mataram
Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (500.845 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i04.p4

Abstract

Street lighting is installed for the benefit of the community to help build a creativeeconomy. Street lights in the government's effort to create creativity help the family economy.The method used is counting the number of lights used on the road with a distance of 1500meters and giving road users a questionnaire of comfort and safety. Street lighting is analyzedin an egonomic way to achieve effective, comfortable, safe, healthy and efficient work. Theresults obtained are the light intensity of 12.799 Lux (fulfilling SNI-2008) and the comfort andsafety of 11.067 and 10,300 likes after improving conditions.
RANCANG BANGUN TONGKAT PINTAR TUNANETRA BERBASIS MIKROKONTROLER Parito Parito; I Gusti Agung Komang Diafari Djuni; Nyoman Gunantara
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 (758.363 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i01.p31

Abstract

Blind part of a community that has limited mobility to the environment in social life. Themobility expected by the visually impaired is not only seen from the social side. We both knowthat the sense of sight is one of the sources of vital information for humans. Most of theinformation obtained by humans comes from the sense of sight. The design of this tool will helpusers avoid objects that are in front, will detect water in the reach of the stick with soundnotifications according to sensor readings. In addition, users also get pick-up mobility ifsomething happens on the road by pressing the emergency button on the device, then thedevice will send a telegram message to the family in the form of the coordinates of the GPSstick location. So that the user of this stick will be easy to find if you need emergency help whenyou are away from home. From the results of testing the tool as a whole, the Blind Smart Stickcan work well, namely it can detect obstacles, and the water in front of it, can issue a warningsound to the user, and can send Telegram messages.
REVIEW STATUS PANEL SURYA DI INDONESIA MENUJU REALISASI KAPASITAS PLTS NASIONAL 6500 MW Ni Made Neli Lestari; I Nyoman Satya Kumara; Ida Ayu Dwi Giriantari
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 (420.743 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i01.p4

Abstract

PLTS is a power plant that converts sunlight energy into electricity using photovoltaictechnology. Solar panels play an important role in PLTS, because solar panels capture solar radiationthen convert it into electrical energy. The development of solar panel technology is the key to supportthe development of PLTS. This article reviews about the development of solar panels in Indonesia asan important component to support the development of national solar power plants towards a capacityof 6500 MW by 2025. The review will be carried out on various aspects of solar panels including thenational solar panel industry, solar panels available in the domestic market, and the availability ofvarious panels. Data is obtained from the national panel industry, the PLTS project, the PLTS userassociation, the national EPC, the Ministry of Energy and Mineral Resources, and the national solarpanel vendor. The survey result shows there are 241 panels, both local and foreign production. Panelcapacities vary from 5 Watt to 500 Watt and panel voltages are available from 12 Volt, 24 Volt and 48Volt. Based on the survey, it is also obtained the average of Rp/Wp is Rp.18,853/Wp and the averageof W/m2 is 159,46 W/m2. Increasing solar panel production can be done by providing incentives tosolar panel producers in the form of product purchase guarantees and incentives to develop newfactories. Information regarding the current status of solar panels in Indonesia is expected to be aquick reference for people or institutions that need it, and can be used as an introduction to researchand application of PLTS in Indonesia.
OPTIMISASI ECONOMIC DISPATCH PADA SISTEM KELISTRIKAN 150 kV BALI MENGGUNAKAN IMPERIALIST COMPETITIVE ALGORITHM I G.N. Ayrthon Senapati; Ida Bagus Gede Manuaba; Rukmi Sari Hartati
Jurnal SPEKTRUM Vol 7 No 3 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (551.36 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i03.p8

Abstract

The purpose of the Economic Dispatch is to determine the distribution of each unit inproviding the requested load, so that the load demand can be met at the lowest possible cost takinginto account the limitations of the generator and available system. Commonly the researcher usesome methods to solve economic dispatch, such as Lagrange, Genetic Algorithm (GA), and othersoptimization methods. Latest Artificial Intelligent technology had invented the solution to solve theoptimization problem especially for economic dispatch, its named Imperialist Competitive Algorithm(ICA) which in this project, ICA become the solution to solve economic dispatch problem in Bali 150kV interconnection system. The simulation result the compared by the result using Lambda Iterationand Particle Swarm Optimization (PSO) method. Simulation result show that the ICA method is ableto provide a better solution in Bali 150 kV interconnection system. The difference in generation costsbetween the Imperialist Competitive Algorithm (ICA) method and the Particle Swarm Optimization(PSO) method is 1685.19 $/h or savings are made at 0.24%. While the difference in generation costsbetween the Imperialist Competitive Algorithm (ICA) method with the Lambda Iteration method is7116.45 $/h or savings are made at 1.03%.