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<![CDATA[ANALISIS MANAJEMEN ENERGI AKIBAT ALIH FUNGSI RUANGAN PADA MASA PANDEMI DI RSD MANGUSADA BADUNG ]]>
<![CDATA[I Made Deny Setiawan]]>;
<![CDATA[I Gede Dyana Arjana]]>;
<![CDATA[Cok Gede Indra Partha]]>
<![CDATA[ Jurnal SPEKTRUM Vol 9 No 2 (2022): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2022.v09.i02.p6
<![CDATA[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,-]]>
<![CDATA[RANCANG BANGUN SISTEM MONITORING SUHU COLD STORAGE BERBASIS IOT MENGGUNAKAN WEMOS D1 R2 DI PT. AEROFOOD ACS DENPASAR ]]>
<![CDATA[Diky Wahyu Kusuma Budi]]>;
<![CDATA[Rukmi Sari Hartati]]>;
<![CDATA[I Gede Dyana Arjana]]>
<![CDATA[ Jurnal SPEKTRUM Vol 9 No 4 (2022): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2022.v09.i04.p5
<![CDATA[Monitoring temperature and humidity in cold storage is very important to prevent damage to food raw materials. Checking the temperature in the cold storage is carried out every 4 hours with the results manually written on the log sheet by the working staff and also sometimes there are staff who do not close the cold storage door tightly so that it causes an increase in temperature. Therefore an IoT-based cold storage temperature monitoring system is created using Wemos D1 R2 in real time which is very necessary. The design of this prototype uses hardware, namely the WeMos D1 R2 microcontroller because it is based on ESP8266 which can be connected to WiFi, DHT22 temperature sensor, and HC-SR501 PIR sensor. The software used is blynk and google spreadsheet. The results of this prototype design are being able to read the cold storage temperature and humidity properly which can be seen in the blynk application on a smartphone by displaying the temperature and humidity values. This prototype also has a feature that sends notifications to smartphones when the temperature is read more than 5°C and has temperature data stored on Google spreadsheets. The conclusion of this study has succeeded in designing and making a prototype of an IoT-based cold storage temperature monitoring system. The testing of the prototype can work well. The results of applying the prototype to cold storage Room 21 obtained an average temperature of 2.9°C and an average humidity of 86%.]]>
<![CDATA[ANALISIS SISTEM PENGAMAN UTAMA UNTUK MENGAMANKAN BUSBAR 150 kV TERHADAP GANGGUAN DI GIS PECATU ]]>
<![CDATA[Made Niken Ayu Larasati Danianto]]>;
<![CDATA[I Gede Dyana Arjana]]>;
<![CDATA[Cok. Gede Indra Partha]]>
<![CDATA[ Jurnal SPEKTRUM Vol 9 No 4 (2022): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2022.v09.i04.p6
<![CDATA[GIS (Gas Insulated Switchgear) is a system of connecting and disconnecting the power grid which is packaged in a non-ferrous tube, using gaseous sulfur hexaflouride (SF6) as the insulation medium. The 150 kV of GIS Pecatu is located in Pecatu Village, South Kuta, Badung Regency, Bali Province. This GIS was built to help supply 120 MW of energy because of the load in Badung area, especially Pecatu and Nusa Dua, is increasing. So, it is necessary to know the differential relay current settings when there is a fault of short circuit in GIS Pecatu to produce an effective, selective and reliable safety system. When there is a fault of 11.58 kA the relay will work immediately within 0 SI, this proves that the differential relay with Instantaneous characteristics will immediately command a trip when the fault current has surpass the set value. From the calculation results, the setting of the main safety relay has worked in appropriate with the SPLN standard No. 52-1 1984 for the 150 kV system.]]>
<![CDATA[RANCANG BANGUN SISTEM KONTROL DAN MONITORING SUHU PADA RUANG FREEZER BERBASIS ESP8266 (STUDI KASUS PADA PT. AEROFOOD ACS DENPASAR) ]]>
<![CDATA[Komang Dody Pramudya Indra Jaya]]>;
<![CDATA[I Gede Dyana Arjana]]>;
<![CDATA[I Made Suartika]]>
<![CDATA[ Jurnal SPEKTRUM Vol 10 No 2 (2023): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2023.v10.i02.p10
<![CDATA[The temperature control and monitoring system in the freezer room has an important role in maintaining the quality of food raw materials. Freezer space is used to store food raw materials to keep them fresh and undamaged. However, if the temperature in the freezer compartment is not properly monitored, food raw materials may be damaged which can affect their quality and safety. Therefore, an IoT-based temperature control and monitoring system in the freezer room was created using Wemos D1 R2. The design of this prototype uses hardware, namely the WeMos D1 R2 microcontroller based on ESP8266 because it can be connected to WiFi, DHT22 temperature sensor, I2C LCD and relay. The results of this prototype design are being able to read the temperature and humidity of the freezer room and having a temperature control system that can be seen on the Blynk application on a smartphone by displaying the temperature and humidity values. The conclusion from this study is that the prototype has succeeded in controlling the temperature of the freezer room as well as monitoring the temperature and humidity of the freezer room and displaying it on the Blynk application on a smartphone and has a warning notification when the temperature rises above -18 degrees celsius.]]>
<![CDATA[PENINGKATAN KEANDALAN PENYULANG TUKAD MUSI DENGAN PENAMBAHAN PENYULANG BATANGHARI DENGAN POLA LOOP ]]>
<![CDATA[Ian Rahmadi Kurniawan]]>;
<![CDATA[I Gede Dyana Arjana]]>;
<![CDATA[I Wayan Sukerayasa]]>
<![CDATA[ Jurnal SPEKTRUM Vol 10 No 3 (2023): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2023.v10.i03.p14
<![CDATA[Reliability of the distribution system is one of the critical challenges and important indicators in the electricity power system. The indicators determining reliability are SAIFI (System Average Interruption Frequency Index) and SAIDI (System Average Interruption Duration Index). The method used to improve the reliability of the distribution system in this research is by converting two radial feeders, namely Tukad Musi feeder and Batanghari feeder, into a loop configuration.The calculation results show that before the improvement, the SAIDI value for the Tukad Musi feeder is 26.59 hours/customer/year, and the SAIFI is 1.92 interruptions/customer/year. The initial values of SAIDI for the Batanghari feeder are 18.14 hours/customer/year, and SAIFI is 1.69 interruptions/customer/year. By implementing a loop configuration through the addition of extra channels at both ends of the feeders, the SAIDI is reduced to 24.79 hours/customer/year, and SAIFI becomes 1.89 interruptions/customer/year. Further improvements are achieved by maneuvering a portion of the load, resulting in SAIDI of 21.51 hours/customer/year and SAIFI of 1.83 interruptions/customer/year.This study contributes to enhancing the reliability of the distribution system by converting radial feeders into loop configuration. The findings can serve as guidelines for planning and developing a more reliable and efficient distribution system.]]>
<![CDATA[PENINGKATAN KEANDALAN PENYULANG TUKAD MUSI DAN PENYULANG BATANGHARI PT.PLN (PERSERO) UP3 BALI SELATAN ULP SANUR DENGAN POLA RADIAL ]]>
<![CDATA[Nyoman Ananda Tri Utami]]>;
<![CDATA[I Gede Dyana Arjana]]>;
<![CDATA[I Wayan Sukerayasa]]>
<![CDATA[ Jurnal SPEKTRUM Vol 10 No 3 (2023): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2023.v10.i03.p10
<![CDATA[The reliability of the distribution system will affect the quality of the electrical energy received by customers. The system will be said to be reliable if the disturbances and power outages that occur for a certain period of time are below the index set by an institution. The measure of the reliability of a system can be measured through the value of SAIDI (System Average Interruption Duration Index) or how long the system is interrupted and SAIFI (System Average Interruption Frequency Index) or how often a system is interrupted within 1 year and it was found that SAIFI's Tukad Musi Feeders were 1.9255 interruptions/subscribers per year, SAIDI were 26.5966 hours/customers per year and SAIFI's Batanghari Feeders were 1.6992 interruptions/subscribers per year, and SAIDI were 18.1486 hours/ subscribers per year by adding a component in the form of LBS to the two feeders will increase the reliability of the Tukad Musi feeder SAIFI of 1.8855 interruptions/customer per year, SAIDI of 26.0606 hours/customer per year and of Batanghari SAIFI feeder of 1.6814 interruptions/subscriber per year, SAIDI of 15.7925 hours / customer per year.]]>
<![CDATA[Studi Pengaman Busbar Pada Gardu Induk Amlapura ]]>
<![CDATA[I Made Dian Purnawan]]>;
<![CDATA[I G Dyana Arjana]]>;
<![CDATA[I W Rinas]]>
<![CDATA[ Jurnal Teknologi Elektro Vol 15 No 1 (2016): (January - June) Majalah Ilmiah Teknologi Elektro ]]>
Publisher : <![CDATA[Program Studi Magister Teknik Elektro Universitas Udayana ]]>
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DOI: 10.24843/MITE.2016.v15i01p07
<![CDATA[Busbar safety is a protection system that plays an important role in securing the disruption of the busbar itself. This protection system should work in a sensitive, selective, rapid, and must be stable to disturbance outside the region busbar protection. At the substation Amlapura, if one busbar impaired or absence of the busbar securing safety as on the other substation, will lead to an imbalance perceived by the system and can lead to continuity of power flow can be disrupted. Based on the calculations that have been done shows that for short circuit simulation results busbar A and B obtained Amlapura substation fault current that occurs in the amount of 5.538 kA. For the calculation of the impedance zone 1 (80%) primer is 1.9721 + 5.715 ? A Zsekunder with a time delay of 0 seconds or work instantly, Zone 2 (120%) primer is 5.55 ? Z + J 16.0836 primary, Zone 2 (120%) the secondary is 2.958 + J 8.5726 ? Zsekunder with a time delay of 0.4 seconds. Keywords: Busbar, Rele, Short Circuit Analysis, impedance DOI: 10.24843/MITE.1501.07]]>
<![CDATA[Pemasangan DGR (Directional Ground Relay) untuk Mengatasi Gangguan Sympathetic Trip pada GIS Bandara Penyulang Ngurah Rai I dan Ngurah Rai II ]]>
<![CDATA[I Nyoman Upanayana]]>;
<![CDATA[I Gede Dyana Arjana]]>;
<![CDATA[I Wayan Arta Wijaya]]>
<![CDATA[ Jurnal Teknologi Elektro Vol 16 No 2 (2017): (May - Agustus) Majalah Ilmiah Teknologi Elektro ]]>
Publisher : <![CDATA[Program Studi Magister Teknik Elektro Universitas Udayana ]]>
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DOI: 10.24843/MITE.2017.v16i02p20
<![CDATA[Gangguan 1 fasa ke tanah dapat menyebabkan terjadinya gangguan sympathetic trip yang menimbulkan arus urutan nol (arus residu) pada fasa yang terganggu. Penyulang yang memiliki sistem jaringan paralel seperti penyulang Ngurah Rai I dan Ngurah Rai II sangat rentan terjadinya gangguan sympathetic trip, karena relay GFR (Ground Fault Relay) pada penyulang Ngurah Rai I dan Ngurah Rai II tidak bisa mengamankan gangguan tersebut, maka untuk mengatasi gangguan sympathetic trip pada penyulang Ngurah Rai I dan Ngurah Rai II pemasangan relay DGR (Directional Ground Relay) akan mencegah terjadinya gangguan tersebut, dan sistem keandalan penyulang Ngurah Rai I dan Ngurah Rai II tetap terjaga. Hasil analisis perhitungan relay DGR untuk menangani gangguan sympathetic trip didapatkan besar nilai setting relay yaitu = 9.334 A, SI, Waktu trip Arus gangguan t = 0.297, ZCT = 1 A, GPT = 34.64 kV. Jadi untuk mengatasi gangguan sympathetic trip, relay DGR sangat diperlukan jika jaringan atau penyulang beroprasi secara loop dan letaknya berdekatan satu bus.]]>
<![CDATA[STUDI ANALISIS DAMPAK PEMASANGAN OVER LOAD SHEDDING TERHADAP PEMBEBANAN PADA SALURAN TRANSMISI 150KV DI BALI ]]>
<![CDATA[Made Ananta Pradnya]]>;
<![CDATA[I G Dyana Arjana]]>;
<![CDATA[I Wayan Arta Wijaya]]>
<![CDATA[ Jurnal Teknologi Elektro Vol 16 No 1 (2017): (January - April) Majalah Ilmiah Teknologi Elektro ]]>
Publisher : <![CDATA[Program Studi Magister Teknik Elektro Universitas Udayana ]]>
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<![CDATA[Safety system supply of electrical power to the transmission system is very important, to maintain the continuity of the load flow of electrical power. PT PLN (Persero) has continued to develop a security system, one with Over Load Shedding or OLS. Over Load Shedding is a form of action over load shedding that occurs automatically or manually installed on the transmission line as security in order to avoid or prevent theoccurrence of total outages. This thesis is a case study occurred Cable Channels Over Load on Sea in Bali (January 2015), which reached 432MW from 340MW capacity may be burdened besides GI Gilimanuk and GI Pesanggaran Trip 125.4MW so OLS stage 1 and stage 2 works by removing loads of 89.76MW. Load flow analysis results simulated using ETAP software Powerstation when OLS stage 1 work, the load flow into 359.532MW Submarine Cable Channels and when OLS stage 2 work, the load flow Submarine Cable Channels be 339.664MW, OLS worked for 9 seconds until the flow of electrical power loss can kontiyuitas met and the loadflow on the 150 kV transmission system in Bali is maintained.]]>
<![CDATA[Pemasangan Arrester Multi Chamber Untuk Mengatasi Gangguan Surja Petir di Penyulang Pecatu ]]>
<![CDATA[I Gede Gerry Julius Perdana]]>;
<![CDATA[I Gede Dyana Arjana]]>;
<![CDATA[I Wayan Arta Wijaya]]>
<![CDATA[ Jurnal Teknologi Elektro Vol 17 No 2 (2018): (May - Agustus) Majalah Ilmiah Teknologi Elektro ]]>
Publisher : <![CDATA[Program Studi Magister Teknik Elektro Universitas Udayana ]]>
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DOI: 10.24843/MITE.2018.v17i02.P02
<![CDATA[Penyulang Pecatu merupakan penyulang yang memiliki konfigurasi sistem distribusi tipe radial, dengan panjang saluran 31 kms. Selain itu, penyulang ini memiliki trafo distribusi sebanyak 105 buah dengan total jumlah pelanggan mencapai 11.800 pelanggan. Untuk melindungi penyulang dari gangguan surja petir , maka dipasang Arrester Multi Chamber pada tiap tiang gawang pada saluran distribusi untuk melindungi saluran distribusi pada Penyulang Pecatu. Pemasangan Arrester Multi Chamber di penyulang Pecatu dengan tujuan, yaitu mengetahui bagaimana data teknis dan kinerja dari pemasangan Arrester Multi Chamber di sepanjang jaringan distribusi di penyulang Pecatu dan mengetahui data gangguan yang ditimbulkan oleh sambaran petir. Dengan penempatan arrester sekitar berjarak 200 m di setiap empat sampai lima gawang , diperoleh kenaikan tegangan saat mengalami surja petir dengan kecepatan gelombang 4/10 µs, dengan waktu sampai kepuncak 10 µs, dimana dengan arus surja 65 kA yaitu 4.147,1831 kV, sedangkan untuk arus surja 20 kA dengan penempatan arrester pada tiap gawang saluran distribusi , kecepatan gelombang dan waktu sampai ke puncak yang sama didapatkan kenaikan tegangan yaitu 713, 385827 kV]]>
