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Jurnal SPEKTRUM

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 14 Documents

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Search results for , issue "Vol 7 No 2 (2020): Jurnal SPEKTRUM" : 14 Documents clear

PROTOTIPE MONITORING SUHU RUANGAN DAN DETEKTOR GAS BOCOR BERBASIS APLIKASI BLYNK Gede Sastra Utara; N.M.A.E.D. Wirastuti; Widyadi Setiawan
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

In everyday life we often use the name LPG gas even as basic needs. However, in its use itcan pose a threat because of a large enough LPG gas. The occurrence of gas leaks when there areno people around the leak is very difficult to detect especially lethal substances contained in LPG gas.To reduce fires caused by LPG gas leaks, a monitoring system is needed to monitor if a leakoccurs.The prototype method for monitoring room temperature and gas detector leak using theArduino uno 328 mitrocontroller by connecting ESP8266 for wifi connection. ESP8266 will send datawhen the MQ2 sensor reads a gas leak, as well as changes in room temperature that is read by theDHT11 sensor by sending the sensor reading data to Arduino ATmega 328 first to be processed intothe response data of the device and data that will be displayed on the blynk application.The result ofthe achievement of this research is that the measurement of leaky gas using the MQ2 sensor canalready be displayed using the avo meter by obtaining the voltage results. Real gas leakagemeasurements in the field can be displayed on mobile phones through the Blynk application media.The leaked gas graph can be displayed in the Blynk application by getting the minimum andmaximum results. The ESP8266 module must be located in an area or location that has a Wi-finetwork in order to send notifications properly according to the instructions on Arduino ATmega 328.

KONSERVASI ENERGI PADA GEDUNG KANTOR SEKRETARIAT DAERAH KOTA DENPASAR Gde Wikan Pradnya Dana; I Gede Dyana Arjana; Cok Gede Indra Partha
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Regional Secretariat Building Denpasar in 2017 experienced a separation in two parts.The separation resulted in the empty room, even though are empty room turned out toconsumption building power in 2018 continued to experience enchancement. The study hasbeen done there is the room that has the intensity of energy consumption which do not comptywith SNI. Solutions that can be given is to replace the type of split standard air conditioner (AC)into a type of low watt air conditioner (AC). Replacement type split standard air conditioner (AC)1,5 PK became type of low watt air conditioner (AC) 1,5 PK can make saving of up 11,62 % orRp 21.068.468,00. Saving electric energy consumption on lighting system can be done byinstalling an automatic switch with time or by using an a light sensor system.

PERBANDINGAN ALOKASI PENEMPATAN FILTER AKTIF DAN FILTER PASIF UNTUK MENDAPATKAN DISTORSI DAYA TERKECIL PADA JARINGAN DISTRIBUSI DI BLUE POINT BAY Auryn Herman Gautama; Antonius Ibi Weking; I Wayan Rinas
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Harmonic filter is a power electronics technology to produce specific current components that canbe used to reduce harmonic currents generated by non-linear loads. Non-linear load is usually foundon electronic equipment in which there are semi-conductor components, such as the use of airconditioners, TVs, computers, medical equipment, musical instruments and so forth. Based onpreliminary measurements at Blue Point Bay Villa & Spa, the simulation results of the THD (TotalHarmonic Distortion) current value of 25.17%, which means exceeding the IEEE 159-2014 standardvalue of ? 15.0%. Filters that are placed incorrectly can cause THD harmonics to be suboptimal. Fromthe results of the study it was found that the THDv value at Blue Point Bay Villa & Spa was 4.83%where these conditions met the maximum THDv IEEE 519-2014 standard for voltages ? 69 kV. THDivalue at Blue Point Bay Villa & Spa after the use of active and passive filters is ? 15% and accordingto IEEE Standard 519-2014. The best placement of active filters to reduce power distortion is SDP 2.2because it can reduce power distortion from 20.08% to 3.94%, and the best passive filter placement isMDP 2, because it can reduce power distortion from 20.13 % to 8.52%.

KARAKTERISTIK KINERJA TURBIN NEST-LIE PADA PROTOTIPE PEMBANGKIT LISTRIK TENAGA MIKRO HIDRO I Nyoman Wira Mastika; Lie Jasa; Ida Bagus Gede Manuaba
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Water energy is energy that comes from water flow which is used to produce electricalenergy by using a flow of water that flows to turn a turbine, then the turbine is connected to agenerator. Micro-hydro power plants are usually built in areas that have the potential for generatingelectricity in a small capacity. The choice of location of a micro hydro power plant is largelydetermined by the potential for water fall or often called a waterfall. Parameters that can be changedto improve turbine efficiency are the shape of the turbine blade, turbine blade volume, nozzle angle,and nozzle position. The method used is the method of observation by observing and testing directlyand the method of literature by studying the literature - literature from several references.Performance characteristics of nest-lie turbines produce higher torque values than triangular turbineblades. Nest-lie turbine produces a torque value of 0.0076 Nm at position 450 nozzle and nozzle angle100. This shows that the nest-lie turbine has characteristics that are better than a triangular turbineblade.

IMPLEMENTASI SISTEM PEMANTAUAN JARINGAN MENGGUNAKAN LIBRENMS PADA JARINGAN KAMPUS UNIVERSITAS UDAYANA I Wayan Krisna Saputra; Dewa Made Wiharta; Nyoman Putra Sastra
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Udayana University is education institutions that has implemented an online learningsystem. The system requires fast and reliable access to internet so students can access themefficiently. In order to meet the need for internet access, it requires to provide infrastructure thatis able to keep internet services running smoothly. Network Monitoring requires an applicationcalled Network Monitoring System. There are many network monitoring applications availablefor free, which provides many option for network operators to carry out monitoring functions.LibreNMS is a popular application because LibreNMS has many features, such as: autodiscovering,flexible and diverse alerting system, comfortable user interface with a dashboardthat can be adjusted to user needs and has wide community support. LibreNMS allows networkadministrators to monitor performance on the network so that it is always available. This studyaims to build a network monitoring system on the Sudirman Campus of Udayana Universityusing LibreNMS. The test results show that LibreNMS is able to display traffic conditions andresource usage on every network device that is monitored.

PERANCANGAN SISTEM POMPA AIR DC DENGAN PLTS 20 kWp TIANYAR TENGAH SEBAGAI SUPLAI DAYA UNTUK MEMENUHI KEBUTUHAN AIR MASYARAKAT BANJAR BUKIT LAMBUH Kadek Bayu Kusuma; Cok Gede Indra Partha; I Wayan Sukerayasa
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Karangasem Regency, especially in Kubu Subdistrict, Tianyar Tengah Village, Banjar BukitLambuh, is an area that still lacks clean water, so that villagers still rely on purchasing clean waterthrough tank trucks at high prices. Around Banjar Bukit Lambuh, there is a 20 kWp Central TianyarPLTS which has been abandoned since 2016 due to the absence of regional companies that manageand maintain the PLTS so that some components of the PLTS are damaged. The abandonment of the20 kWp PLTS makes the Bali Provincial Manpower and Energy Department (ESDM) Department planto transfer the function of PLTS as a source of electricity for water pumps that lift water fromreservoirs with a water capacity of 72,000 liters to a 30,000 liter water reservoir which is near thePLTS to meet the water needs of residents in the Middle Tianyar Village Banjar Bukit Lambuh. Theselected water pump type Lorentz PS2-4000 C-SJ3-32 submersible DC with a total head of 108.6meters and a pipe length of 1,640 meters and requires power of 2.96 kW supplied from PLTS 20 kWpTianyar Tengah with a cable length of 1,640 meters and voltage drop of 8,183 volts, so that the pumpcan operate for 7 hours with 4.2 m3 / h water discharge producing 29,400 liters of water that can meetthe water needs of residents of Banjar Bukit Lambuh Village by 23,328 liters per day.

SIMULASI PENYESUAIAN BEBAN PADA TRANSFORMATOR DI GARDU INDUK NUSA DUA I Made Eko Adi Setiawan; I Wayan Rinas; I Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

The rapid development in the South Kuta region has resulted in an increase in the demand for electricityenergy that must be supplied by the 150 kV Nusa Dua substation. An increase in the amount of load results in anincrease in the load that must be borne by the transformer. To prevent losses due to overload, a load adjustmentsimulation is performed on the transformer at the Nusa Dua Substation. Load flow simulation is done using ETAPsoftware with the subject of the power transformer load along with the load-feeders. The purpose of the simulation isto know the loading conditions and power loss of the Nusa Dua substation system. Furthermore, the transformerload adjustment scenario is designed, then simulated again with ETAP software to determine changes in the loadingconditions and the power loss in the Nusa Dua substation system. Simulation results in existing condition withnormal operation, transformer 1 load is 69,8% and transformer 3 is 71,8% with a total power loss of 14,1%. After 3planning scenarios for transformer load adjustment, scenario 2 is the bestl scenario in short term with the loading ontransformer 1 is 50,4%, transformer 2 is 45,9%, and transformer 3 is 45,1% with total power loss of 9,16%. While forthe long term, scenario 3 is recommended by adding a new transformer unit. Transformer 1 loading is 50,9%,transformer 2 is 45,9%, and transformer 3 is 45,1% with a total power loss of 9,24%.

DESAIN PLTS ATAP KAMPUS UNIVERSITAS UDAYANA: GEDUNG REKTORAT Bagas Maruli Pangaribuan; Ida Ayu Dwi Giriantari; I Wayan Sukerayasa
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Utilization of renewable energy is a solution to overcome electricity demand, including PV.PV rooftop can be applied in every building, where solar modules can be placed on the roofbuildings. It also can be done in the University of Udayana Rectorate building because the roof hasthe potential of PV and capable of being a power supply to meet its own needs. This study willdiscuss about the design PV rooftop of the Udayana rectorate building. It simulates the helioscopewith an optimal angle of 14.660 get the result with solar module as much as 135 units with 2inverter pieces of 50 kW the capacity of 45.2 kWp PLTS. While with a sloped roof angle of 15.60get the solar module result as many as 137 units with 2 inverter pieces of 50 kW with PLTScapacity of 45.9 kWp. The calculating production of electric energy produced by PV by simulatingHOMER get the result of PV configuration with Grid capable of supplying electrical energy of304,772 kWh/year, where PV is able to supply at 61,217 kWh/year and Grid supplying electricityenergy of 243,555 kWh/year. The results of the design PV rooftop and calculation results ofelectrical energy production can analyze the economy of the simulation results HOMER with thecost of selling electricity energy PV to PLN in the amount of Rp. 883/kWh can be said to be worthydesigned because it is able to restore the cost of early investment costs PV rooftop of the rectoratebuilding.

RANCANG BANGUN 3D PRINTER CORE XY MENGGUNAKAN RAMP 1.4 BERBASIS ATMEGA 2560 I Nyoman Budiastra; I Gede Feryanda Frasiska
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Additive,Layer,Manufacturing,or,better,known,as,3D,printers,is,.the,process,of,combining,materials,to build,objects,from,3D,model,data,with,layer,by,layer. In the development process, a newproduct prototype, 3D Printing, is a machine that plays a big role in the 2 and 3dimensional,creation,process,in,the,product,design,process.,The,quality,of,printouts,and,timeefficient,in,making,3D,modeling,produced,becomes,more,effective,and,optimal.,The,purpose,of,the,study,is,to,examine,the,effectiveness,of,the,3D.printer.system.design,work using a shieldtype XY Ramp Core 1.4 based atmega 2560 and know the quality of the 3D printer prints. Thisresearch is a type of design activity, the results of data analysis using the results of 3Dmodeling are processed using a 3D printer and have a value of size accuracy as evidenced bythe results of 3D measurements using calipers, It can be concluded that the 3D printer machinewith,the,XY,belt,core,system,uses,Atemega,2560,based Ramp 1.4 which is made suitable foruse in the 3D modeling process of,3D,modeling,measurements,using,calipers.

RANCANG BANGUN SISTEM MONITORING KETINGGIAN SAMPAH DAN TINGKAT GAS METANA PADA BAK SAMPAH BERBASIS IoT I Made Mudiarta; I Gusti Ngurah Janardana; I Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Garbage is often a problem, especially in big cities. The average amount of waste in Indonesiais 64 million tons / year, while the number of landfills in Indonesia is around 400 with a landfill capacitythat can accommodate 233 kg / day. Not to mention the unpleasant odor and dirty city views causediscomfort. This is where a solution is needed by leading to the use of technology in an effort tocreate a clean environment by reducing the level of waste accumulation and reducing waste litteredwith the Internet of Things technology. This tool is able to monitor the height of waste and gas contentvia the web. The internet system uses the MCU Node module with energy supply from solar cells.Working voltage of the control system is 5V, a stepdown module is needed to reduce the batteryvoltage from 12V to 5V. Detection of the height of waste using a PING sensor and to determine thelevels of methane gas using the sensor MQ-135. From testing at Student Center LT 4, it was foundthat the garbage accumulated on Saturday by 60 cm with 126 PPM methane gas levels that indicatedunhealthy. This monitoring system can last up to 7 days because it uses solar cells, but this canexperience changes due to the intensity of the sun.

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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

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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