This paper focuses on analyzing the effect of moisture content in Virgin Coconut Oil (VCO) on the dielectric properties of pressboard as a transformer insulation material. The experiments were conducted on two types of samples: non-impregnated pressboard and pressboard impregnated with VCO for 6, 12, and 24 hours. The tested parameters included moisture content, relative permittivity, Partial D…
Partial Discharge (PD) is one of the main causes of degradation in polymer insulation materials under high-voltage systems. To enhance the insulation resistance against PD, an impregnation process using Polydimethylsiloxane (PDMS) filled with nano-sized silicone dioxide (SiO₂) particles was conducted. This study aims to evaluate the effect of SiO₂ concentration variation on the viscosity of…
Silicone oil is one of the insulating liquids used in power transformers due to its high thermal stability and excellent dielectric properties. However, during operation, this oil may degrade because of thermal aging and contamination by solid particles such as Kraft paper. This study aims to analyze the effect of thermal aging and the presence of Kraft paper particles on the breakdown voltage …
This study aims to analyze the breakdown voltage characteristics of a mixture of mineral oil and Extra Virgin Olive Oil (EVOO) with the addition of Aluminium Oxide (Al₂O₃) nanoparticles as filler. Mineral transformer oil is widely used due to its excellent dielectric strength but is not environmentally friendly. As an alternative, Extra Virgin Olive Oil, which is biodegradable and has a hig…
This study aims to optimize ozone exposure based on Dielectric Barrier Discharge (DBD) to extend the shelf life and maintain the textural quality of postharvest tomatoes. The DBD system was designed using a coaxial configuration with voltage variations ranging from 3.5 to 6.5 kV to determine the most efficient ozone concentration. Measurements using an ozone analyzer indicated that a voltage of…
This research aims to analyze the breakdown voltage of a mixture of Jatropha Oil and Cotton Seed Oil as an alternative insulating fluid for transformers. The study investigates the effect of different mixing ratios on the dielectric characteristics of the oil and determines the optimum composition with the highest breakdown voltage. The testing procedure followed the IEC-60156 standard using a …
This study aims to analyze the effect of addition of ZnO, Al2O3, and TiO2 nanoparticles on breakdown voltage values. The test was conducted on soybean oil samples with varying concentrations of 0,1, 0,2, 0,3, and 0,4 wt% of each nanoparticles, as well as pure soybean oil to observe the effect of adding ZnO, Al2O3, and TiO2 nanoparticles. This test used ∅ 13 mm sphere electrode system with a 2…
This research investigates the enhancement of PDIV and Breakdown Voltage in Epoxy Resin insulation material filled with MgO and ZnO at concentrations of 1 wt%, 2 wt%, 3 wt , 3,5wt% and 4 wt%. Testing was performed using a needle-plane electrode with a 1 mm gap, and AC voltage was ramped up at 100 V/s for PDIV and 1 kV/s for . Test results showed that adding MgO and ZnO improved insulation perfo…
This study examines the effectiveness of an ozone generator based on the Dielectric Barrier Discharge (DBD) method with a rod–spiral electrode configuration in inhibiting the decomposition of red chili peppers. The rod–spiral electrodes are made of aluminum with an inter‑spiral gap of 1 mm. The applied voltage was varied within the range of 3.5–6.5 kV AC with oxygen supplied as the plas…
Partial Discharge Inception Voltage (PDIV) and Breakdown Voltage (BDV) characteristics of kraft paper insulation impregnated with canola oil containing ZnO (zinc oxide) nanofluid, under variations in multilayer configuration and impregnation time. The purpose of this research is to analyze the influence of ZnO nanoparticle concentration and multilayer structure on the dielectric performance of …
This paper aims to analyze the effect of adding silicone dioxide (SiO₂) as a filler on the dielectric properties of epoxy resin. The samples were prepared using Bisphenol A–Epichlorohydrin epoxy resin with SiO₂ filler concentrations of 1; 2; 3; 4; 5 wt%. The tests were conducted using a plate-plate electrode system at a frequency of 50 Hz to measure the relative permittivity, dissipation …
This study aims to analyze the dielectric characteristics of blended vegetable oils as an alternative liquid insulation to replace mineral oil in power transformers. The samples used were canola oil (CO), rice bran oil (RBO), and groundnut oil (GO), blended at ratios of 20:80, 40:60, and 50:50 for both RBO:CO and GO:CO mixtures. The dielectric dissipation factor (tan δ) and breakdown voltage w…
Internet of Things (IoT) has developed rapidly in the health sector, one of which is the application to detect heart rate and blood oxygen levels using the MAX30102 sensor. This study aims to analyze the accuracy level of the MAX30102 sensor in measuring heart rate and oxygen saturation (SpO2) on an IoT-based detector by comparing it to a standard Pulse Oximeter medical device. Testing was carr…
This research aims to develop a digital voucher application that can be used by business actors to create, change, use and monitor digital vouchers flexibly and efficiently for business actors who do not yet have an online shop. The method used in this research is the Devops method. This research begins with the planning stage which involves identifying the needs and objectives of the applicati…
Currently, the operation of mobile robots faces major challenges due to the absence of an adequate monitoring system. This results in the inability to monitor the position and operational status of mobile robots in realtime, potentially reducing operational efficiency and effectiveness. This research aims to design and develop a monitoring system capable of tracking the position and operational…
As the demand for electrical energy increases and the number of consumers increases, the level of continuity of the electrical power supplied needs to be considered. When an outage occurs, some kWh is not received by consumers so that it is not paid. The research was conducted at PT PLN Rayon Ampera Palembang with the section technique method and the calculation of the realization value. From t…
This study discusses the model and analysis of cooling techniques on a 50 WP polycrystalline solar panel using a DC fan and perforated aluminum plate. The main objective of this research is to improve the efficiency of solar panels by reducing the operational temperature caused by solar radiation. The research methods include the use of a solar panel without cooling, a solar panel with DC fan c…
In the power system of the Bukit Siguntang Substation, specifically on the Rusa feeder, there is a protection system consisting of an Overcurrent Relay and a Groundfault Relay. Therefore, research was conducted on the evaluation of the coordination settings of the OCR and GFR protection system to maximize the performance of a selective and reliable protection system. Based on the value of the i…
Pada tugas akhir ini bertujuan untuk menganalisa keandalan suatu sistem tenaga listrik pada pusat pembangkit di PT. Pertamina EP Prabumulih. Suplai listrik PT Pertamina EP area Prabumulih semua berasal dari Pembangkit Listrik Tenaga Gas di Talang Jimar yang terdiri dari 11 genset dengan keluaran 6,6 KV, dengan kapasitas 4 x 910 kW dan 7 x 975 kfV. Dalam operasinya, power plant talang jimar meng…
Untuk mengurangi pencurian kendaraan bermotor roda dua pada lahan parkir di tempat-tempat umum, maka pada tugas akhir ini dibuatlah sebuah sistem palang parkir otomatis dengan menggunakan Radio Frequency IDentification (RFID). RFID akan mengirimkan kode unik ke Personal Computer yang didalamnya terdapat Software VisualBasic 6.0 untuk diolah dan dicocokkan datanya dengan Database yang kemudian a…
Dalam pengoperasian Motor Induksi dengan metode starting langsung pada saat melakukan start arus motor empat sampai tujuh kali dari arus nominal atau momen awalnya sering terlampau kecil yang tentunya akan mempengaruhi jatuh tegangan. Pada motor ZM-2051-1 arus awal mencapai lima kali dari arus normal. Hal ini menunjukan bahwa arus pada kondisi saat starting motor cukup besar sehingga, menyebabk…
Skripsi yang berjudul: Perlindungan hukum terhadap konsumen pengguna layanan dompet elektronik (e-wallet) DANA yang berhenti berlangganan Apple Music. Latar belakang dari penelitian ini adalah dompet elektronik yang merupakan hasil dari kemajuan teknologi digital memberikan dampak besar terhadap sistem pembayaran. Dompet elektronik mempermudah melakukan transaksi pembayaran terutama untuk jarak…
Analisa ini bertujuan untuk dapat mengetahui ukuran frekuensi link BTS seluler dan mngetahui cara pencegahan terjadinya penggunaan frekuensi illegal dan saling mengganggu.Analisa dilakukan di Balai Monitor Spektrum Frekuensi Kelas II Palembang jalan macan kumbang no.50 Palembang pada tahun 2012.Subjek analisa adalah 8 pengukuran parameter teknis pada BTS yang ada di kota Palembang.Metode yang d…
Perkembangan teknologi informasi saat ini di rasa sudah mengalami kemajuan yang amat pesat, terutama di bidang media elektronik. Salah satu perkembangan yang dialami, yaitu mempermudah seseorang dalam berkomunikasi secara bebas namun terdapat pula pengaruh negatif, yaitu perbuatan pengancaman yang melanggar undang-undang yang berlaku. Berdasarkan hal tersebut, maka penulis dapat melakukan penul…
Using the website is one way to carry out the communication process with the University. A university website is a depiction of a university because the website contains information about academics, faculties and programs offered, and other important things. Sriwijaya University as one of the universities in South Sumatra certainly has an official university website, namely unsri.ac.id which is…
Autonomous vehicles are an innovation of vehicles that are able to operate themselves without human intervention. One of the most important aspects of research in the field of autonomous vehicles is route planning. This research aims to build the closest route planning system using ant colony optimization algorithm. This research begins by collecting coordinate data through the google maps appl…
There has been a great deal of research done on the characteristics of return strokes on negative CG-flashes, primarily using parallel-plate antennas integrated with buffer circuits (slow-field and fast-field). These observations will identify lightning data from lightning storms occurring in the Palembang observation area. Thus, the goal of this study is to monitor the tropical strom's Return …
Spektrum frekuensi radio merupakan sumber daya alam yang terbatas dan tidak dapat diperbaharui, sehingga perlu dikuasai oleh negara. Mengingat spektrum frekuensi radio merambat tanpa mengenal batas wilayah dan kompleks maka perlu diatur dan ditata dengan baik, sehingga sesuai dengan teknis dan alokasi yang ditetapkan pada peraturan perundangan yang berlaku serta tidak menimbulkan gangguan (inte…
Pesatnya perkembangan teknologi menghadirkan segudang inovasi yang dalam semua aspek untuk membantu manusia beraktivitas, salah satunya ialah bidang transportasi. Kendaraan otonom merupakan salah satu perkembangan teknologi transportasi terkini yang terus berkembang. Autonomous Vehicle ini merupakan kendaraan tanpa pengemudi yang dapat melakukan perjalanan ke tujuan yang ditentukan tanpa memerl…
Humans are highly dependent on electricity, both for household and industrial needs. With population growth, the demand for electricity increases. Power plants are developing to meet this need, including in remote areas, hence the necessity for inverters to convert direct current (DC) to alternating current (AC). This research aims to design a single-phase 8-level 1000-watt sinusoidal PWM inver…