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<![CDATA[ANALISIS SISTEM PENGAMAN BACKUP UNTUK MENGAMANKAN BUSBAR 150 Kv TERHADAP GANGGUAN DI GIS PECATU ]]>
<![CDATA[I Nyoman Wardana]]>;
<![CDATA[I Gede Dyana Arjana]]>;
<![CDATA[Cok. Gede Indra Partha]]>
<![CDATA[ Jurnal SPEKTRUM Vol 8 No 4 (2021): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2021.v08.i04.p5
<![CDATA[High power needs in badung area, especially Pecatu and Nusa Dua resulted in theneed for GIS development to increase power supply. GIS Pecatu uses a double busbar withOCR as its Backup safety, if one of the busbars is disrupted and there is no protection rele thatsecures the busbar, it will result in continuous power flow is disrupted.In this study, an analysis of the rele busbar setting and the appropriate protectionsetting as a reference protection system in GIS Pecatu. The results of the calculation of currentsetting obtained the working current value (Iset) OCR of 1339 A and (Iset) GFR 223 A anddelay time 0.53 seconds, actual working time rele 0.35 Standard Inverse, and the value of shortcircuit interference current calculation from PLN 11.58 kA and based on simulation resultsobtained 11.46 kA with a percentage of errors of 0.12%.]]>
<![CDATA[RANCANG BANGUN DATA LOGGER MONITORING VIBRASI PADA MOTOR LISTRIK 6,3 KV BERBASIS IOT SECARA REAL TIME DI PLTU JERANJANG ]]>
<![CDATA[Putu Agus Satriya Guna Adnyana]]>;
<![CDATA[Rukmi Sari Hartati]]>;
<![CDATA[I Gede Dyana Arjana]]>
<![CDATA[ Jurnal SPEKTRUM Vol 9 No 1 (2022): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2022.v09.i01.p14
<![CDATA[As a power plant industry, PLTU Jeranjang OMU (Operation and Maintenance Unit) owned oneof 6.3 kV nominal voltage induction motor that has critical characteristic that drives the waterpump into the boiler room which always has to operate. This motor has been equipped withtemperature sensor in real time that can monitor the temperature of bearing motor. However,manual control is still applied in vibration monitoring. It is done by taking the vibration data oncea week, and there is no deviation data found in real time. The result of this study shows that theprototype of IoT-based vibration monitoring data logger that is designed using the blynkapplication obtained the average of sensor deviation of 2%. Alarm notification of each sensorsdeliver "warning" if the vibration value indicates ? 4,5-70 mm/s and alarm notification delivers"emergency" if the vibration value indicates ? 7,1 mm/s in concordance with the ISO 10816-3vibration standard. Although, the performance of sensor data storage has successfully storingthe data with 8 GB microSD card, then will be fully charged in 4629 days or 154 months and 3days.]]>
<![CDATA[STUDI ANALISA PENGHEMATAN ENERGI DI GEDUNG DEWAN PERWAKILAN RAKYAT DAERAH KABUPATEN BADUNG ]]>
<![CDATA[I Wayan Sastrawan]]>;
<![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.p7
<![CDATA[Today, excessive use of electrical energy will certainly cause energy wastage, given the energy crisis that has hit all countries, the government must have made efforts to save energy use. In 2019, the energy consumption of the Badung Regency DPRD Building was 41.8 kWh/m2 month, when compared to the Minister of Energy and Mineral Resources Regulation No. 13 on an Air-conditioned Building, which was 14 kWh/m2 month, the DPRD Building was included in the wasteful category. Based on these problems, efforts are needed to evaluate the use of electrical energy in the DPRD Building by means of energy conservation. The purpose of the study was to identify the potential for saving electrical energy that can be applied to the Badung Regency DPRD Building. The research method uses a descriptive quantitative approach where the results of calculations and measurements are then described and compared with Indonesian national standards on energy conservation. The results of the research show that the potential for saving electrical energy can be done by replacing the standard Split AC into a low watt AC where the electrical energy savings are obtained by 11.62% or a budget savings of Rp. 21,068,468.-]]>
<![CDATA[KAJIAN PENGGUNAANjALAT PENERANGANlJALAN TIPEILED DI JALAN BYfPASS MUNGGU TANAH LOT ]]>
<![CDATA[I Nyoman Tri Juliarta]]>;
<![CDATA[A A Gd Maharta Pemayun]]>;
<![CDATA[Gd Dyana Arjana]]>
<![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.p8
<![CDATA[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.]]>
<![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.]]>
