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I Wayan Arta Wijaya
Universitas Udayana
Computer Science & IT Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering

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PEMILIHAN JENIS PENANGKAL PETIR UNTUK MENGAMANKAN AREA GEDUNG BESERTA PERALATAN PADA PERUMAHAN NUSA DUA HIGHLAND Biantoro, Kharis; Arta Wijaya, I Wayan; Janardana, I Gusti Ngurah
Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2020.v07.i01.p19

Abstract

The selection of lightning rods in the Nusa Dua Highland housing estate aims to secure the housing area from lightning strikes, because the housing has not been protected by lightning rods and earthing system components which are very difficult because they have rocky soil types. The average number of lightning strikes per year with a density value of 31 per km2 and population density, land use for houses and buildings have a very high level of vulnerability, so lightning rods are needed to secure the Nusa Dua Highland residential area. Lightning rods to be used are conventional lightning rods or Evo Franklin (E.F). The selection of the type of lightning rod is done by analyzing technical and economical. The results achieved in this study are the type of lightning rod suitable for housing Nusa Dua Highland is the E.F lightning rod with an earthing system. Because from technical analysis, 1 E.F lightning rod is able to protect the entire residential area with 37,994 m2 of protection area from the 22,444 m2 housing area, while 1 conventional lightning rod is only able to protect 1 house from a total of 147 housing units. In terms of economical cost of installing E.F lightning rods is much cheaper at a cost of Rp. 104,450,000. Conventional lightning rods cost Rp. 14,390,000 for 1 housing unit and to protect the entire housing using conventional lightning rods needed 147 lightning rods at a cost of Rp. 2,115,390,000.
ANALISIS VARIASI TRANSMISI GEAR TERHADAP OUTPUT DAYA LISTRIK PADA PROTOTYPE PEMBANGKIT LISTRIK TENAGA PIKOHIDRO MENGGUNAKAN TURBIN TURGO Hary Putra Darma, I Nyoman; Budiastra, I Nyoman; Arta Wijaya, I Wayan
Jurnal SPEKTRUM Vol 10 No 4 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i04.p3

Abstract

The design of the Picohydro Power Plant at the Kanto Lampo Waterfall tour was carried out to meet the electricity demand in the form of lighting in the area. Based on a survey that has been conducted, the access road from the parking lot to the waterfall is about 150 meters away and does not yet have adequate lighting. The waterfall has a height of 15 meters, so the design of the PLTPH prototype will use a turgo turbine to maximize the power output of the generator which is distributed to the lighting. This research was conducted to determine the effect of gear variations on rotational speed, torque, voltage, current and power produced by the PLTPH prototype. The test method used is direct testing on the prototype. The data obtained, then graphed the influence of gear variations with the parameters tested. All parameters tested get the highest rotation results by using 2 nozzles of 752.2 rpm. In the gear transmission test the highest output results were obtained at a ratio of 4:1 and the power generated was 48.70 watts.
POTENSI PEMBANGKIT LISTRIK TENAGA MIKROHIDRO DENGAN TURBIN KAPLAN PADA SUNGAI MAMBAL Dwi Lasmana, I Kadek Oki; Indra Partha, Cokorda Gede; Arta Wijaya, I Wayan
Jurnal SPEKTRUM Vol 10 No 4 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i04.p36

Abstract

The Kaplan turbine is a type of reaction turbine that utilizes potential energy to generate motion energy. The Kaplan turbine is very suitable for use in places where the head is low but requires a large discharge. Currently Kaplan turbines are still very little used in Indonesia, especially in Bali. So that it is difficult to obtain specification data relating to Kaplan turbines. Many prototypes are made on a laboratory scale to get maximum results. This study discusses the results of the output voltage, current, power, and efficiency that can be produced by a PLTMH prototype using a Kaplan turbine. This study also discusses the analytical study of the existing hydropower potential, namely, the water flow rate and the height of the water fall (head) of the Mambal River water flow. This prototype test uses a water flow rate of 6 L or 0.006 m^3/s with a guide vane angle of 30 ยบ and a total of 5 runner blades. In the no-load test, the average turbine rotation before being coupled to the generator was 556 rpm, the average turbine rotation after being coupled was 353 rpm. The average result of the largest turbine rotation is 303 rpm, the largest generator rotation result is 499 rpm, the largest generator voltage average result is 5.60 volts, the largest average generator current result is 0.61 Ampere, the result the largest average generator powerKey Words : Prototype of PLTMH, Kaplan Turbine, Water Discharge, Output producedis 1.93 Watt, the largest torque is 0.14 Nm, the largest PLTMH efficiency is 5.1%.
RANCANGAN SISTEM KELISTRIKAN DATA CENTER BERSTANDAR TIER 3 PADA PERBANKAN Anggi Suryanti, Ni Made Vifiana; Suweden, I Nengah; Arta Wijaya, I Wayan
Jurnal SPEKTRUM Vol 10 No 4 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i04.p41

Abstract

A data center is a facility used to place electronic systems and related components for the purposes of placing, storing and processing data. The data center is expected to be able to provide services as optimally as possible even in the event of a disturbance. Data center development must consider long-term development plans in terms of services, hardware and infrastructure. The majority of data centers in Indonesia are still standard tier 2. The majority of data centers with tier 3 standards have qualified specifications for companies that require high availability with good planning of the appropriate electrical system.The results of the research that has been done is that in designing a tier 3 standard data center, it must have full backups in the form of generators and UPS to meet the No Shutdown requirements. The use of estimated power designed in this study is 289433 Watts using a main power source from PLN using two transformer units backed up by four generator units and one UPS unit to back up critical loads.
RANCANG BANGUN PROTOTIPE SISTEM MONITORING ATS-AMF DAN BATTERY CHARGER MENGGUNAKAN TELEGRAM DI PERUMDA AIR MINUM TIRTA SANJIWANI UNIT PRODUKSI BLANGSINGA Triandani Ayuningsih, Ni Nyoman; Indra Partha, Cokorde Gede; Arta Wijaya, I Wayan
Jurnal SPEKTRUM Vol 11 No 1 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2024.v11.i01.p23

Abstract

The monitoring system of the Automatic Transfer Switch - Automatic Mains Failure (ATS-AMF) and battery charger is necessary to facilitate operators in remotely monitoring the system, thus ensuring the continuous supply of water to consumers. An Internet of Things (IoT)-based monitoring system does not require operators to always be on standby at the location, operators can monitor the system remotely outside their working hours. The prototype system is designed using the NodeMCU ESP32 DEVKIT V1 microcontroller and Telegram application for sending and receiving messages remotely, as well as providing spam notifications when disruptions occur in the ATS-AMF and battery charger systems. Data sent from the ATS-AMF includes voltage, frequency, current, power, the power source being used, and disruption data from both the PLN electricity source and the generator. Data sent from the battery charger includes voltage, current, battery charging stages, battery state of charge, and disruption data. Test results show a 100% success rate in data transmission through the Telegram chatbot, with an average delay ranging from 4.8 seconds to 5.7 seconds. This monitoring system ensures effective remote monitoring to maintain the smooth flow of electricity and the continuous supply of water to consumers.
PEMBUATAN PROTOTYPE PLTB TURBIN ANGIN SAVONIUS TIPE-U SUMBU VERTIKAL DENGAN SUDUT KELENGKUNGAN SUDU 135o MENGGUNAKAN SUMBER ANGIN BUANGAN EXHAUST KITCHEN Wredhira Wirartama, I Wayan Gde; Arta Wijaya, I Wayan; Janardana, I Gusti Ngurah
Jurnal SPEKTRUM Vol 10 No 4 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i04.p32

Abstract

Bali is known as a tourism island for both local and foreign tourists, therefore there are many hotels, resorts and restaurants for tourists. In order to fulfill the Bali Clean and Green program, the Regional Government of Bali encourages tourism-related businesses, such as hotels, to construct sources of electricity from new renewable energy. The authors use waste energy in the form of exhaust wind from the kitchen exhaust fan in addition to using natural wind energy. Artificial wind is created when waste energy from exhaust fans is converted into a form that can be used to rotate or power a generator. Making a PLTB prototype with a vertical axis Savonius turbine with a blade curvature angle of 135 degrees is the goal of this research in order to increase the wind sweep area and obtain the highest output ratio. This study employed a quantitative methodology. This study was able to maximize the exhaust fan's wind speed, which was 5.84 m/s. The highest generator output value is at 2.93 vdc, 0.62 mmA, and 1.80 Watt for a 2-blade turbine and 40 ohm load, and at 3.22 vdc, 0.74 mmA, and 2.39 Watts for a 4-blade turbine and 40 ohm load.
RANCANG BANGUN MESIN HOT PRESS LIMBAH PELASTIK SERTA PERHITUNGAN KONSUMSI ENERGI PENCETAKAN Wiawan Adhi Guna, I Putu Gede; Indra Partha, Cokorde Gede; Arta Wijaya, I Wayan
Jurnal SPEKTRUM Vol 11 No 1 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2024.v11.i01.p5

Abstract

The issue of waste, particularly plastic waste, remains a challenging problem without a definitive solution. Plastic waste, especially that made from High-Density Polyethylene (HDPE), takes an extensive amount of time to decompose. Currently, plastic recycling machines are priced in the hundreds of millions, making them less accessible. Therefore, there is a need for affordable machines that function effectively alongside existing ones. This research introduces a hot press machine for recycling HDPE plastic. The hot press machine is capable of recycling HDPE plastic waste and offers the advantages of being portable, compact in size, and cost-effective. Following the design phase, the machine is capable of producing plastic boards with a thickness of 1 cm, utilizing 3.7 kg of plastic, and requiring a molding time of 2 hours and 15 minutes at a pressure of 4.36 MPa.Subsequent testing involved analyzing three factors to determine the significant influence of factor A (heating temperature) and factor B (heating time) on energy consumption. The goal was to identify the interaction that yielded the smallest average energy consumption.
RANCANG BANGUN PROTOTIPE SISTEM ATS-AMF BERBASIS MIKROKONTROLER DI PERUMDA AIR MINUM TIRTA SANJIWANI UNIT PRODUKSI BLANGSINGA Eka Pratama, I Gusti Putu; Indra Partha, Cokorde Gede; Arta Wijaya, I Wayan
Jurnal SPEKTRUM Vol 11 No 1 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2024.v11.i01.p19

Abstract

The continuity of electricity supply from generators to consumers cannot always be guaranteed due to various factors such as planned outages, distribution failures, and the impacts of natural disasters. The Regional Public Water Company (Perumda) Tirta Sanjiwani has adopted generators as Backup Power Sources to ensure the availability of water supply to consumers. However, the Blangsinga Production Unit of Perumda Tirta Sanjiwani faces challenges in switching electricity supply between PLN and the generator set (genset), especially in operations requiring uninterrupted continuity. To overcome the instability of the electricity supply from PLN, the use of automatic systems such as ATS (Automatic Transfer Switch) and AMF (Automatic Main Failure) is necessary. The function of ATS is to switch from PLN to the backup power source (genset) when there is a disturbance or outage in PLN. AMF is responsible for detecting failures in PLN and initiating the genset as well as transferring the load to the backup power source when there is a failure in the main power supply. The ATS-AMF system prototype is designed using voltage sensors, frequency sensors, current sensors, and relays to ensure optimal performance and responsiveness to environmental conditions and power supply conditions.
RANCANG BANGUN PROTOTIPE SISTEM BATTERY CHARGER DENGAN METODE PENGISIAN TIGA TAHAP DI PERUMDA AIR MINUM TIRTA SANJIWANI UNIT PRODUKSI BLANGSINGA Mangun Yasa, Made Galang; Indra Partha, Cokorde Gede; Arta Wijaya, I Wayan
Jurnal SPEKTRUM Vol 11 No 1 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2024.v11.i01.p20

Abstract

Generator set (genset) is needed in companies that operate continuously such as at Perumda Air Minum Tirta Sanjiwani to supply electrical equipment when there is a disruption in the main supply, therefore, the generator set must always be ready to use, one way is through charging the battery with the right method to maintain battery capacity to always be in full condition. This research discusses related to the Battery Charger System Prototype which integrates microcontroller components, sensors, actuators, indicators, and converters to be able to charge the battery with a three-stage charging method and be able to perform a preventive response when a voltage outside the charging standard is detected to minimize the risk of battery damage. Test results using a 10 Ah capacity battery when the DOD is 50% show that charging through the Bulk Stage lasts for 6 hours 40 minutes with a charging current set at 0.7 A, the Absorption Stage lasts for 1 hour 17 minutes with a charging voltage set at 14.7 V, and the Float Stage is tested for 2 hours with a charging voltage set at 13.65 V. This research also includes two battery charging current options to be implemented to partners, so it is expected to provide adequate solutions.
AKURASI PERAMALAN BEBAN LISTRIK SEKTOR RUMAH TANGGA MENGGUNAKAN ARTIFICIAL NEURAL NETWORK DI KOTA PALANGKA RAYA Mahendra Penyarikan, I Gede; Dyana Arjana, I Gede; Arta wijaya, I Wayan
Jurnal SPEKTRUM Vol 11 No 1 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2024.v11.i01.p2

Abstract

Electrical energy is one of the most important energies in the daily life of the people of Palangkaraya, both in business, social, government and household sects. Planning electrical energy in its needs is needed to avoid an energy crisis, because economic growth in the Palangkaraya City area requires electrical energy in its operations. The planning carried out in the study by predicting electricity demand used the ANN (Artificial Neural Network) method. ANN is used at the prediction stage within the scope of the household sector. JST results have good forecasting accuracy with MAPE (Mean Absolute Percentage Error) of 7.1975%. With an absolute error value occurred at Rates of R.2/3,500VA to 5,500VA in July amounting to 32.2728%.
Co-Authors Anggi Suryanti, Ni Made Vifiana Biantoro, Kharis Dharma Pawitra, Ida Bagus Gede Dwi Lasmana, I Kadek Oki Eka Pratama, I Gusti Putu Hary Putra Darma, I Nyoman I Gede Dyana Arjana, I Gede I Nengah Suweden I Nyoman Budiastra Indra Partha, Cokorda Gede Janardana, I Gusti Ngurah l Gusti Ngurah Janardana Listara Wijaya, I Putu Gede Mahendra Penyarikan, I Gede Mangun Yasa, Made Galang Septiana, Gebi Sitanggang, Rafael Tjok Gede Indra Partha Triandani Ayuningsih, Ni Nyoman Wiawan Adhi Guna, I Putu Gede Wredhira Wirartama, I Wayan Gde