Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

Jurnal SPEKTRUM

spektrum
Website

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

30 31 32 33 34

ANALISIS PENGARUH CUACA TERHADAP PERUBAHAN PEMBEBANAN LISTRIK PADA PT. PLN (PERSERO) RAYON DENPASAR I Made Adi Purwa Adnyana; Gede Dyana Arjana; I Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

The research aims to determine the effect of air temperature, wind speed and rainfall on changes in electrical loading. The object in this research is PT. PLN (Persero) Rayon Denpasar. Software used Untulk analyze multiple linear regression models using SPSS software. The results of the analysis showed 10.4% of the electrical burden affected by temperature variables. Then on the rainfall Model 3% electric load is affected by the rainfall variables and on the wind speed model of 2.3% The electrical load is affected by the variable wind speed. A simultaneous 15.8% of the electrical load is influenced by variable temperature, rainfall and wind speeds. The remaining 84.2% is influenced by other causes outside the model.

ANALISIS KETIDAKSEIMBANGAN BEBAN DAN HARMONISA PADA TRANSFORMATOR DISTRIBUSI MI 0096 PENYULANG ABIANBASE I Wayan Yoga Prasetya; I Nyoman Setiawan; I Gede Dyana Arjana
Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

MI 0096 Distribution Transformer is one of the transformers supplied by Abianbase Feeders.The MI 0096 distribution transformer has a capacity of 100 kVA with a daytime load of 48,5 kVA and a nighttime load of 50,81 kVA. Unequal single-load loads on the transformer result in unbalanced loads on the transformer MI 0096 and the use of non-linear loads results in harmonic distortion on the transformer MI 0096. In this study, carried out a comparison of load imbalance and harmonics that occur during the day and night.The results of the analysis found that the percentage of load imbalance in the MI 0096Distribution Transformer is classified in poor condition that exceeds 25% with the percentage of load imbalances during the daytime at 28,74% and at noon 30,28%. THDv on the MI 0096 Transformer is within the allowable limit of below 5% with THDv at 1,7% during the day and 1,9% at night. THDi in the MI 0096 Distribution Transformer exceeds the allowable standard which exceeds 8%, with THDi during the day 17,5% and at night 24%. Losses caused by the THDi in the MI 0096 transformer have increased along with the increase in THDi in the transformer. Losses without THDi are 0,5 kW, whiletotal losses after being affected by THDi are 5,79 kW during the day and 11,01 kW at night.

ANALISIS PERBANDINGAN UNJUK KERJA WIND TURBINE TSD-500 DAN GH – 0.5K DI PILOT SMART GRID TEKNIK ELEKTRO UNIVERSITAS UDAYANA I. W. Dhanan Arieyasa; Cok. G. Indra Partha; I. W. Sukerayasa
Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Wind power generation is a power plant that converts kinetic energy into electrical energy by utilizing wind as its energy source. The Smart Grid Pilot Project in Microgrid, Udayana University's Electrical Engineering Study Program has a wind power plant for research. The wind power plants in the Smart Grid Pilot Project in Microgrid Udayana University's Electrical Engineering Study Program totaled 10 turbines with rated power of 500 Watt each, from 10 wind turbines there are 8 wind turbines with TSD-500 models made in Indonesia and 2 wind turbines with GH-0.5K models made in China. The data logger contained in the Pilot Smart Grind in Electrical Engineering, Udayana University, logs 10 wind turbines at a time, so the output power of each wind turbine is unknown. Performance analysis of wind turbine TDS-500 and GH-0.5K using a measuring instrument based on the ATmega 328 microcontroller so that it can find out which wind turbine is larger which results in better power output and performance. The results of this study indicate that the TSD-500 wind turbine performance is better than the GH-0.5K wind turbine.

ANALISIA PENEMPATAN LIGHTNING ARRESTER PADA CABLE HEAD 60 SEBAGAI PENGAMAN TRANSFORMATOR GIS BANDARA NGURAH RAI I Putu Weda Jayanthana; Cok. Gede Indra Partha; I Gede Dyana Arjana
Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

The transmission line of 150 kV between GIS (Gas Insulated Switchgear) Bandara Ngurah Rai and GI Nusa Dua needs to be concerned further due to the high number of VIP customers supplied by the GIS Bandara Ngurah Rai. The location of transmission line of GIS Bandara Ngurah Rai with GI Nusa Dua is also located in the southern area of Bali in which according to the data of BMKG in 2018, it was recorded that 15.000-30.000 lightning strike occurred in the southern area of Bali. One of the devices used to protect the equipment from lightning surge is lightning arrester. Lightning arrester which is used in the network of GIS Bandara Ngurah Rai to GI Nusa Dua is placed on Cable head 60. The transmission line of GIS Bandara Ngurah Rai with GI Nusa Dua is connected by an overhead line of 8.5 km and an underground cable of 2.02 km, which is connected by terminating on Cable head 60. The distance between the Airport GIS transformer and the lightning arrester is 2.02 km, therefore it needs to be studied further in order to find out whether the protection generated by the lightning arrester has been optimal or not. The result showed that the arrester with an installation distance of 2020 meters from the transformer is still able to cut the lightning surges by producing the sparkover voltage value of 605.12 kv. Accordingly, the result of sparkover voltage exceeds the sparkover voltage of the arrester in the number of 577kv, however the voltage is still within the tolerance range of the sparkover voltage of the arrester.

PERAMALAN BEBAN LISTRIK JANGKA PENDEK MENGGUNAKAN METODE ADAPTIVE NEURO FUZZY INFERENCE SYSTEM (ANFIS) DI GARDU INDUK NUSA DUA BALI I Made Satriawan; I Made Mataram; A. A. Ngurah Amrita
Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Electric load in Nusa Dua Bali has increased from 2013-2017 by an average of 11.83%. The increase in electric load requires the electrical energy service provider to be able to adjust the electricity demand and be able to increase its reliability, The effort that can be done is to predict the electric load. Electric load forecasting can be done by various methods, ANFISo (Adaptiveo Neuroo Fuzzyo Inferenceo Systemo) is one method that is often used in forecasting electrical loads. ANFIS is able to explain the reasoning process and do data learning. The data used are the electric load, temperature, humidity and time, the data was chosen because changes in temperature and humidity affect people's habitual patterns in using air conditioners (electric load patterns). The electric load pattern is trained 100 times using ANFIS with the type of membership function is trimf, and [3 3 3 3] is the number of membership function. The indicator to determining the accuracy of the electrical load forecasting pattern results with the real electric load pattern used the MAPE (Mean Absolute Percentage Error) value, which the MAPE standard value that good is less than 10%. The test results from this study produced a MAPE value of 6.98%.

PENGARUH JUMLAH FUNGSI KEANGGOTAAN PADA METODE FUZZY LOGIC TERHADAP HASIL PERAMALAN BEBAN LISTRIK JANGKA PANJANG Sani Renartha Kusuma; Rukmi Sari Hartati; I Wayan Sukerayasa
Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Electric load in Sumbawa Besar Regency from 2011 - 2018 experienced an average increase of ± 6.6%. The electric load for the following year is not yet known, so forecasting is needed. Electric load forecasting has an important role in the energy management system. Many methods can be used for forecasting, one of them is the fuzzy logic method. Fuzzy logic method consists of 3 components, those are Fuzzification, Fuzzy Inference System, and Defuzzification. Fuzzification is an important component of the fuzzy logic method, so the proper configuration is needed in order to produce forecasting that is close to the actual data. The simulation was carried out in 3 conditions, those are the first conditions (3 membership functions), the second condition (5 membership functions), and the third condition (7 membership functions). The third condition obtained a MAPE value of 2,42%, while the second condition was 3,34%, and the first condition was 6,51%. The third condition obtained the simulation results in 2026 at 24,75MW, while the second condition was at 23,26 MW, and the first condition was at 20,97MW. The third condition is the best condition in this study, because it has the smallest MAPE value.

PERANCANGAN APLIKASI GAME VIRTUAL REALITY CERITA RAKYAT RAMAYANA MENGGUNAKAN PLATFORM ANDROID Satria Paramartha, Putu Bagus; Arsa Suyadnya, I Made; Sudarma, Made
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.p26

Indonesia is the largest archipelago country in the world that has a variety of folklore from all parts of Indonesia. One of the most famous folklore in Indonesia is the Ramayana story. In this modern era, people's interest in folklore, especially the younger generation is very alarming. This is because the background of the story and the characters in most folklore are considered outdated and no longer relevant to today's life. Based on this problem, the virtual reality game application of the Ramayana folklore was made to visualize the Ramayana folklore in a more interesting and dynamic way in order to increase the interest of the community to be more fond of Indonesian folklore. Application development starts from the concept, design, material collection, assembly, testing, and distribution stages. This application was built using C # programming language, Google Cardboard SDK, Blender and Unity software. The results obtained are an application that can be used as a medium of entertainment or learning about Ramayana folklore. In this Ramayana folklore game application, users can play 3 stage games that are equipped with game narratives consisting of text and images. Based on the test results using the Black-Box method, the functional application has been able to run as it should. Based on testing the System Usability Scale (SUS), this application obtained an average value of 20 respondents at 73.13 with C of SUS?s Grade Scale, which is Acceptable category.

PERANCANGAN SISTEM PEMANAS AIR MENGGUNAKAN SISTEM KENDALI PID Parmadi Putra, I.W.; Arta Wijaya, I. W.; Budiastra, I.N.
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.p17

As the technology advances in control system grow rapidly, especially those involved with water temperature, there is an increased demand for a control system that is able to provide precisely stable temperature value. The commonly used systems nowadays are still using the ON/OFF control system for it is relatively affordable and simple, but unfortunately numerous errors are still found and it is not yet able to provide precise data. Therefore, a PID control system was developed to address this issue. In this study, Arduino UNO temperature control was used as data acquisition system, and LM35 temperature sensor was used to detect the temperature recognized by signal conditioning. From the signal conditioning, the driver will then control the heater in order to obtain a precise temperature. This PID system utilized a water-resistant temperature sensor. In this study, the heater was treated by means of controlling the PID temperature which ranged from 69oC to 70.5oC. Another test was done by comparing the temperature value detected by the device?s temperature sensor with an external digital thermometer which was placed in the same container. The temperature value detected by the device?s temperature sensor had a difference of ± 1,300C compared to the digital thermometer.

PERANCANGAN SISTEM POMPA AIR DENGAN MEMANFAATKAN PLTS 20 KWP DESA TIANYAR TENGAH Bima Aditya Putra; I Wayan Sukerayasa; Cok Gede Indra Partha
Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Implementation of solar power plants in Bali, located in Karangasem Regency, Bali Province. In 2013, the Ministry of Energy and Mineral Resources built a 15 kWp and 20 kWp off grid small scale solar power plants pilot project in Tianyar Village, Kubu District, Karangasem Regency. 20 kWp Central Tianyar solar power plants and 15 kWp West Tianyar currently abandoned unused, Therefore in this study it will be discussed more deeply about 20 kWp solar power plants in Tianyar Village to optimize the use of solar power plants in tianyar village as a source of water pump drive. Designing a Water Pump System Using the 20 kWp solar power plants of Central Tianyar Village has a total Head Losses of 109,519 m, the pump used is 1 LEO 4XRm6 / 20-2.2 water pump with an average head of 110 m. The pipe used is a PVC pipe along the 1640 m with a diameter of 2 Inch. This design also uses 6 Elbow fittings, 90 ° Threaded Regular. The need for drinking and cooking water that is needed by residents of Tianyar Tengah Village Banjar Bukit Lambuh is 38,880 liters / day. This design can lift water needs of 38,400 liters / day or as much as 98.76% or as many as 1279 out of 1296 people who are met the need for clean water for drinking and cooking.

STUDI SISTEM PROTEKSI LINE CURRENT DIFFERENTIAL RELAY PADA SALURAN TRANSMISI 150 KV Dharmawan, N. B.; Ariastina, W. G.; Amrita, A. A. N.
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.p22

Increasing electricity demand in South Bali requires a reliable electrical system. Reliable electrical systems can be achieved in various ways, one of which is the replacement of high voltage overhead line to high voltage underground cable. The replacement high voltage overhead line to high voltage underground cable requires adjustment of the protection system. The previous main protection system used in high voltage overhead line is distance relay, while the protection system for the new transmission network is line current differential relay. The purpose of this study is to analyze GIS Pesanggaran to GI Nusa Dua transmission line?s protection system. The covered in this analysis is to power flow analysis simulation, 3 phase short circuit simulation, relays setting calculation and testing the relays setting.The power flow simulation showed that the current at peak load from GIS Pesanggaran to GI Nusa Dua is 337 A. The 3 phase short circuit simulation showed that the largest short circuit, if a fault occurs on the GI Nusa Dua of 9.54 kA. The relays setting calcullation showed that of 0,2 A with 20 % slope for Is1 and 2 A with 150% slope for Is2. The results showed that the relays setting has worked properly.

Page 32 of 68 | Total Record : 677

30 31 32 33 34

Filter by Year

2014 2024

Filter By Issues

All Issue Vol 11 No 2 (2024): Jurnal SPEKTRUM Vol 11 No 1 (2024): Jurnal SPEKTRUM Vol 10 No 4 (2023): Jurnal SPEKTRUM Vol 10 No 3 (2023): Jurnal SPEKTRUM Vol 10 No 2 (2023): Jurnal SPEKTRUM Vol 10 No 1 (2023): Jurnal SPEKTRUM Vol 9 No 4 (2022): Jurnal SPEKTRUM Vol 9 No 3 (2022): Jurnal SPEKTRUM Vol 9 No 2 (2022): Jurnal SPEKTRUM Vol 9 No 1 (2022): Jurnal SPEKTRUM Vol 8 No 4 (2021): Jurnal SPEKTRUM Vol 8 No 3 (2021): Jurnal SPEKTRUM Vol 8 No 2 (2021): Jurnal SPEKTRUM Vol 8 No 1 (2021): Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM Vol 7 No 3 (2020): Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM Vol 6 No 4 (2019): Jurnal SPEKTRUM Vol 6 No 3 (2019): Jurnal SPEKTRUM Vol 6 No 2 (2019): Jurnal SPEKTRUM Vol 6 No 1 (2019): Jurnal SPEKTRUM Vol 5 No 2 (2018): Jurnal SPEKTRUM Vol 5 No 1 (2018): Jurnal SPEKTRUM Vol 4 No 2 (2017): Jurnal SPEKTRUM Vol 4 No 1 (2017): Jurnal SPEKTRUM Vol 3 No 2 (2016): Jurnal SPEKTRUM Vol 3 No 1 (2016): Jurnal SPEKTRUM Vol 2 No 4 (2015): Jurnal SPEKTRUM Vol 2 No 3 (2015): Jurnal SPEKTRUM Vol 2 No 2 (2015): Jurnal SPEKTRUM Vol 2 No 1 (2015): Jurnal SPEKTRUM Vol 1 No 1 (2014): Jurnal SPEKTRUM More Issue

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

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