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Jurnal SPEKTRUM

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Published by Universitas Udayana

ISSN : 23023163 EISSN : 26849186 DOI : -

Core Subject : Science, Engineering,

Computer Science & IT Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering

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.

Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro

Articles 677 Documents

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KAJIAN PENGGUNAANjALAT PENERANGANlJALAN TIPEILED DI JALAN BYfPASS MUNGGU TANAH LOT I Nyoman Tri Juliarta; A A Gd Maharta Pemayun; Gd Dyana Arjana
Jurnal SPEKTRUM Vol 9 No 2 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

The existence of public street lighting (APJ) as a means of supporting the road is very necessary to provide comfort, security, and safety for road users. Public street lighting that is not in accordance with the 2008 Indonesian National Standard (SNI) can cause road problems. SNI 2008 requires primary arterial roads to have an average illumination of 11-20 lux. The problem of lack of illumination occurs on the By Pass Munggu Tanah Lot road from the Seseh Beach traffic light intersection to the Singing beach road intersection, which has a length of 1.47 Km with a total of 21 street lighting points that produce an average illumination of 4,58 lux. The problem of harmonics in the electric power system is increasingly complex with the increasing use of non-linear equipment (eg LED lamps), where this equipment produces harmonics in voltage and current waves. In this study, harmonic calculations will be carried out on LED lamps and mercury lamps. The method used in the preparation of this research is a method of comparing the characteristics of mercury lamps and LED lamps, which is to compare from a technical and economic point of view. After that, match the provisions and conformity which in this case refers to SNI 2008.

PEMANFAATAN PLTS 10 kWp TERPASANG UNTUK CATU DAYA POMPA AIR DI DESA BAN KARANGASEM Awgustus Patandean; I A Dwi Giriantari; Wayan Gede Ariastina
Jurnal SPEKTRUM Vol 9 No 2 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

There are 19 banjars considered as custom And 16 official banjars at Ban Village located in the Regency of Karangasem Bali. The people in Ban, especially who live at the village of Tempek Asti and the village of Manik Aji, have troubles to get the ccess of fresh water. As the result, they must take a longdistance walk and the condition is teribly dangerous. The village of Manik Aji has off-grid system powered by PLTS 10 kWp which was built in 2017 by the minister of source and energy of Indonesian Republic. It had done by Manpower Department and ESDM of Bali Province. In 2021, PLN (Indonesian Electric state) had designed to supply the electricity at Manik Aji village. Therefore,the installed PLTS was functioned as the source of electric support to fulfill the society's needs of tempek Asti Manik aji village. The water pump type is AC submersible Kepeida 4SMP3 26-2,2 kWp and 2.093,14 Wh of energy. The total head is 60,005 meter which the power needed 2,2 kWp and 2.093,14 Wh of energy so the water pump can operate for 3,5 hours with the water debit is 3 m3/h producing 10.000 litter of water and has fulfilled the water needs of society at tempek Asti Manik Aji village about 1.200 litter daily.

IMPLEMENTASI SISTEM PEMANTAUAN KUALITAS AIR DENGAN IOT DI PLANT FACTORY KEBUN PERCOBAAN FAKULTAS PERTANIAN UNIVERSITAS UDAYANA I Putu A.B. Artha Wiraguna; I Nyoman Setiawan; Anak Agung Ngurah Amrita
Jurnal SPEKTRUM Vol 9 No 2 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Plant Factory is a technological concept that forms an ideal environment for plant growth. Water quality has several factors including pH value, water nutrient level (ppm), water temperature and others, plants require a pH value of 5.5 to 6. Differences in pH values and plant nutrients affect plant growth. Lettuce Cultivation has different nutrient requirements for water where plants need around 1000-2000 ppm and 20-25°C in order to produce good growth. Therefore we need a system that can regulate and monitor water quality that can be monitored anywhere. Based on system testing that has been carried out for 30 days, it is found that all components used function as expected, the water quality monitoring sensor is able to detect the value of pH, TDS, water temperature with an average difference with measuring instruments below 2%. After being tested for 30 days from planting to harvesting, the tool can still function properly with indicators that this tool can record data for 30 days and store all data in the database accurately.

ANALISIS HOSTING CAPACITY PADA JARINGAN TEGANGAN MENENGAH UNTUK SUPLAI DAYA LISTRIK DAERAH PEDESAAN N.W. Budiantari; W.G. Ariastina; I.W.Sukerayasa I.W.Sukerayasa
Jurnal SPEKTRUM Vol 9 No 2 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

As technology advances, the use of electrical energy increases for this reason, energy conversion is needed, one of which is the installation of photovoltaic. Analysis hosting capacity on the distribution network serves to determine the flow of power when photovoltaic is installed and can analyze voltage, conductor loading, power loss, and good transformer loading when connected to the network.The analysis of hosting capacity on rooftop PV mini-grid spread over the distribution network is very useful for future planning if there is a massive energy transition that is implemented on rooftop PV mini-grid. The hosting capacity analysis on the distribution network was carried out in 2 scenarios, which were Scenario A for the Bangli feeder without being connected to the PLTS 1 MWp and Scenario B for the parameter B for the Bangli feeder being connected with the PLTS 1 MWp. The analyzed parameters included voltage, conductor loading, transformer loading and power losses in network. The results of the analysis showed that the distribution network hosting capacity is 40%, for both Scenario A and Scenario B.

AUDIT ENERGI DAN MONITORING BERBASIS IOT UNTUK PENINGKATAN EFISIENSI PENGGUNAAN LISTRIK DI ART CENTER DENPASAR Novian Bayu Putranto; Agus Dharma; Putu Ayu Rhamani Suryadhi
Jurnal SPEKTRUM Vol 9 No 2 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

An energy audit is needed to find out energy saving opportunities (PHE) so that it will reduce the amount of electricity bills at the Denpasar Art Center which is used as a cultural performance center in Bali. A more specific location in this research is the Ksirarnawa Art Center Denpasar Building in the lighting section. The energy audit in this study is combined with an IoT-based electrical energy monitoring tool so that electricity usage can be monitored in real time. This IoT-based electrical energy monitoring uses Arduino Nano as a data processor as well as sending data to a site service called Thingspeak to record and display data from sensors. The sensors used are the ZMPT101B voltage sensor and the YHDC SCT 013-000 current sensor which are integrated with the NodeMCU as a module to connect to a wireless network. The results of the energy audit at the Denpasar Art Center got a potential Energy Saving Opportunity (PHE) of 33.6% with suggestions to related parties being to replace lamps using LEDs and to regularly set on/off times.

RANCANG BANGUN PROTOTYPE PLTMH DENGAN TURBIN TURGO I Gede Putu Aditya Kresna Artha K; I Wayan Arta Wijaya; I Gusti Ngurah Janardana
Jurnal SPEKTRUM Vol 9 No 2 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Learning about using water resources as a MHP is need to implemented for Electrical Engineering students at Udayana University. Currently at the Energy Conversion Laboratory the Electrical Engineering Study Program Faculty of Engineering Udayana University cannot yet to carry out practicum on MHP due to the unavailability of devices and equipment. Therefor it needs to analyze the design of this MHP prototype. Turgo turbine is a classification of impulse turbine that require water pressure as a source to rotate the turbine. In this research a prototype of MHP with a turgo turbine has been formed which has a total of 18 blades with blade length 6,8 cm, blade width 4,68 cm, and blade depth 1,17 cm. This prototype has 1 nozzle with a diameter 2 cm that has beam angle of 70° which emits water with a pressure of 21 psi. This prototype is capable of producing power 7,268 Watt and torque 0,1228 Nm so that this prototype efficiency is 1,099%.

ANALISIS MANAJEMEN ENERGI AKIBAT ALIH FUNGSI RUANGAN PADA MASA PANDEMI DI RSD MANGUSADA BADUNG I Made Deny Setiawan; I Gede Dyana Arjana; Cok Gede Indra Partha
Jurnal SPEKTRUM Vol 9 No 2 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

In 2020 as a result of the Covid-19 pandemic, the number of patients at the Mangusada Hospital continued to increase. The increasing number of patients has led to a change in the function of the room in handling special patients with Covid-19. The change in the function of the room will certainly have an impact on changes in electrical energy consumption. The results showed that the measurement of light intensity and room temperature in Building C of RSD Mangusada did not meet the standards of the Minister of Health Regulation No. 7 of 2019. The factor causing the non-fulfillment of light intensity was because many lights had dimmed and died and in the air system the standards were not met due to performance. AC that is not optimal in cooling the room but is still used if this continues will be a waste of energy. Energy saving efforts can be applied to the lighting system by replacing TL-D lamps with 36watt power consumption, 2850 lumens with LED tube type EM/ Mains T8 lamps, power consumption of 18.2 watts, 2900 lumens where energy savings are obtained by 49.4% or budget savings of Rp. 134,514,169,-

PERANCANGAN PLTS ATAP GEDUNG PERPUSTAKAAN UNIVERSITAS UDAYANA Marcelinus Anggiat Situmorang; Ida Ayu Dwi Giriantari; I Nyoman Setiawan
Jurnal SPEKTRUM Vol 9 No 2 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Solar Rooftop PV is one solution in reducing CO2 emissions and the increasing consumption of electrical energy. Based on PP No.79 of 2014, Indonesia is committed to utilizing 23% of the total renewable energy of the total by 2025. In the General National Energy Plan (RUEN), in 2025 Indonesia targets the capacity of electrical energy from new and renewable energy of 45 GW of which solar power of 6.5 GW (14%). In this research, we will discuss the design of Solar Rooftop PV in the Udayana University Library building. Based on the helioscope simulation results, at a real angle of 20.6o and 20.3o solar modules that can be installed as many as 84 units with a power capacity of 28.1 kWp while at an optimum angle of 14.66o, as many as 66 solar modules can be installed with power capacity of 22.1 kWp. Based on the results of the HOMER simulation, the configuration between the real angle PV mini-grid and the grid is able to produce energy of 83,253 kWh/year with an emission reduction of 41.764%, while the configuration of the Solar Rooftop PV with the optimum installation angle with the grid is able to produce energy of 79.775 kWh/year with a reduction in emissions of 34.527%. From the results of the HOMER simulation, an economic analysis was carried out with an energy selling price of Rp. 900/kWh. The two Solar Rooftop PV designs are worth investing in where the Solar Rooftop PV design with a real installation angle of 20.6o and 20.3o is able to return the initial investment costs in the 17th year while the Solar Rooftop PV design with an optimum installation angle of 14.66o able to return the investment cost in the 20th year.

ANALISIS PENGHEMATAN BIAYA LISTRIK DI KANTOR DINAS KETENAGAKERJAAN DAN ESDM PROVINSI BALI PASCA TERPASANG PLTS ATAP 40 KWP I Kadek Adi Febriana Putra; Ida Ayu Dwi Giriantari; I Wayan Sukerayasa
Jurnal SPEKTRUM Vol 9 No 2 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

PLN's electricity sales in 2020 reached 234.5 TWh, while electricity consumption in Bali Province throughout 2020 was 4.9 TWh. In this study, PLTS roof supporting parking at the Office of the Manpower and ESDM Office of the Province of Bali is used as a location for installing PLTS in the use of new and renewable energy which has an impact on saving electricity bills and reducing CO? emissions. PLTS is installed with a total capacity of 40 kWp with an on grid configuration. Based on the research results, the simulation uses HelioScope software using two scenarios. In scenario 1 with an optimal inclination angle of 14.79°, the potential for energy production is 59.251,00 kWh/year, while in scenario 2 with an optimal tilt angle of 6.35°, the potential for energy production is 59.251,00 kWh/year. PLTS production from June to December 2021 is 35,287.90 kWh with savings on electricity bill costs of Rp. 67,640,740.00 and is able to reduce total CO? gas emissions by 27,233.33 kg CO?.

IMPLEMENTASI SISTEM PEMANTAUAN INTENSITAS CAHAYA DENGAN IOT DI PLANT FACTORY KEBUN PERCOBAAN FAKULTAS PERTANIAN UNIVERSITAS UDAYAN Aveliano Tandrianto; I Nyoman Setiawan; A. A. Ngurah Amrita
Jurnal SPEKTRUM Vol 9 No 2 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Plant factory is a plant warehouse with a closed planting maintenance system which is expected to overcome the problem of pest attack and disturbance of climatic factors. In this study, an IoT-based light intensity monitoring system has been designed at the Plant Factory, Experimental Garden, Faculty of Agriculture, Udayana University. To monitor the value of the LED light intensity. The hardware used in this study uses 2 microcontrollers, namely arduino nano and ESP 32, using a BH1750 sensor to measure the intensity of light lux and using RTC to calculate the time on the device. All hardware components are assembled in parallel and become an IoT system, which is one way to be able to carry out automatic monitoring and control of lights that can be done anywhere. Monitoring with IoT at the plant factory using the internet which can be accessed through the blynk application. With this technology, it is expected to be able to regenerate farmers in the future to farm using IoT technology, the concept of hoeing and plowing, becoming more modern farming.

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Contact Name
Nyoman Gunantara

Contact Email
gunantara@unud.ac.id

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+6281558140279

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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

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Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

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

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

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