The electrical discharge process known as Initial Breakdown (IB) is the initial trigger for a cloud-to-ground (CG) lightning flash. This phenomenon arises from the intensification of the electric field by a positive charge pocket located below the main negative charge center within a cumulonimbus cloud. This study aims to observe the presence of IB pulse trains that initiate the first return st…
Electricity demand continues to increase in line with population growth and technological developments. On the other hand, the limited availability of fossil fuels and their negative impact on the environment have prompted the need to utilize renewable energy. One solution that can be implemented is a hybrid power generation system that combines solar power plants (SPP) and wind power plants (W…
Energy that was previously wasted unnoticed can be harnessed to create an environmentally friendly form of electrical power. The source of electrical power can be obtained by conversion generated from the pressure of human feet while walking or running with the concept of piezoelectric energy harvesting. This research involves theoretical and experimental analysis to evaluate the efficiency as …
Sumber daya energi terbarukan akan menjadi pengganti utama bahan bakar fosil dalam beberapa tahun terakhir karena sifatnya yang karena sifatnya yang bersih dan terbarukan. Fotovoltaik merupakan alat Konversi Energi Matahari menjadi Energi listrik yang bebas polusi dan ramah lingkungan sehingga sangat perlu untuk dilakukan penelitian lebih lanjut dalam mengembangkan teknologi baru/terbarukan. Ke…
Electricity is a necessity in all areas of need nowadays. The large use of several types of electronics makes the quality of electricity poor, therefore observing the quality of electricity needs to be done. However, the limitations of the tool make the observation of the quality of electricity hampered. This research aims to create a prototype that is able to observe the quality of electricity…
Penelitian ini bertujuan untuk mengevaluasi sistem kelistrikan pada Gedung Dekanat Fakultas Teknik Universitas Sriwijaya Kampus Inderalaya berdasarkan Standar Nasional Indonesia (SNI) dan Persyaratan Umum Instalasi Listrik (PUIL). Evaluasi dilakukan terhadap tiga aspek utama, yaitu intensitas pencahayaan, kapasitas pendingin udara (AC), serta instalasi daya dan proteksi listrik. Metode peneliti…
The Dewantara Feeder of the Prabumulih Substation is a 20 kV distribution network of PT. PLN (Persero) UP3 Ogan Ilir with a medium-voltage overhead line (SUTM) extending 152.37 km, which experiences voltage drops and power losses exceeding the standard limits when delivering energy to customers. This study aims to analyze the reduction of power losses and voltage drops under existing conditions…
Nowadays, dependence on electrical energy is getting increased. With increase the needs of electrical energy, the quality of available energy need to be improved so it can really be used wisely. Steam power plant is the system of power plant that using coal as the energy sources. The exergy analysis is very needed to evaluate the system’s performance and find the rate of exergy destruction. E…
This study aims to determine the effect of adding a flat mirror reflector to a 100 WP monocrystalline solar panel in its utilization as an energy source in a water lifting system by a 12 volt DC water pump engine with a power of 180 watts. This research was conducted for 14 consecutive days to collect data in the form of panel voltage and also DC water pump discharge by paying attention to weat…
Planning of the railway bridges construction usually use finite element method . In practice , the finite element method is applied by using a lot of Software or Computer programs . One of the Software used is Solid Works 2012 and COSMOSM 2012 (2010/290). Because SolidWorks 2012 and COSMOSM 2012 (2010/290) Software has more advantages compared with the other programs and can be analyzed with mo…
Generator arus searah merupakan sumber energi alternatif untuk pengisian ulang ke baterai mobil listrik, yaitu dengan memanfaatkan energi mekanik dari bagian yang berputar dalam sistem transmisi mobil listrik yang akan memutar generator. Desain bagian bodi rotornya dengan menggunakan cairan resin yang dituangkan kedalam sebuah cetakan kemudian tunggu hingga resin mengeras kemudian letakkan 12 b…
The process of metal powder deposition process deposition electrolysis. Produciion tools to produce copper powder consist of a power supply Circuit with varied value of 5 volt s, 10 volt s and 15 volt s. This thesis will discuss the malang of copper powder by electrolysis with elektro refming method, because this method canproduce fine grainpowder with highpurity, 99.97% ~ 99.99% copper. Stages…
This paper presents exergy and energy analysis of steam power plant system at PT. Tanjung Enim Lestari Pulp and Paper (PT.Telpp) that aims to improve performance by analyze the components and the overall system. Energy analysis is able to know location, type and losses that occur during the process. Energy rate, exergy, energy and exergy efficiency and irreversibility is calculated based on the…
Humanoid robots are one type of robot being developed currently that has the ability to imitate humans, and one of them is the ability to avoid objects when moving so that they can walk properly without hitting anything. So, an obstacle avoidance system for humanoid robots is needed. Therefore, in this research an obstacle avoidance system was developed which was carried out on a prototype. In …
The grounding system is one of the systems that protects humans and electrical equipment by conducting excess current to the ground, therefore the quality of the grounding system depends on the resistance of the soil. In this study, efforts were made to reduce soil resistance by using additives in the form of gypsum and coconut shell charcoal, using the 3-point method. In this research, the moi…
This study aims to analyze the innovation of electricity bill payment services through the PLN Mobile application at PT PLN Main Distribution Unit for South Sumatra, Jambi, Bengkulu Region (UID S2JB). Using a qualitative approach, this study explores user experience. The theory of service innovation according to Rogers (2003) is used as an analytical framework to understand the process of innov…
Analisis investasi adalah analisis yang berperan dalam menentukan kelayakan proyek untuk dijalankan. Hasil penelitian ini adalah analisis finansial dengan kriteria investasi berupa; debt ser\’ice cobveroge ratio (DSCR), profitabilitas indeks (PI), payback periocl (PP), net present vaJue (NPV), discountedpaybackperiod (DPP), internal rate of retum (IRR), dan NPV simulasi. Dari nilai ECF (equit…
Abstract Aluminum is a shiny silvery-white metal with high electrical conductivity. One type of aluminum commonly used in aircraft is AA6061. This research investigates the effect of T6 heat treatment on the fatigue resistance of 6061 aluminum alloy material. The heat treatment process involves solution heat treatment at 530°C for 2 hours, followed by rapid cooling using water, and artificial …
Energi air dapat dimanfaatkan sebagai pembangkit listrik dengan memanfaatkan tenaga potensial air yang tersedia. Pembangkit Listrik Tenaga Air (PLTA) adalah salah satu teknologi yang sudah terbukti tidak merusak lingkungan, menunjang diversifikasi energi sebagai pemanfaatan energi terbarukan, menunjang program pengurangan penggunaan BBM, dan sebagian besar konstruksinya menggunakan kandungan lo…
This study aims to analyze the effect of load variation on the temperature of a three-phase induction motor operating in generator mode. Load variation is a critical factor as it affects power output and causes temperature changes in the motor. In this study, temperature measurements were conducted at various load levels, from 0 to 1000 watts, to observe the temperature rise with increasing loa…
Electrolyte variations used in LiSnO2/LiFePO4 battery are LiCl and NaNO3 with 2 types of solvents namely H2O and DMSO. This research aims to analyze the results of characterization of LiSnO2/LiFePO4 electrodes and the effect of electrolytes and solvents on the performance of lithium ion battery with LiSnO2/LiFePO4 electrodes. The results of electrode characterization using SEM show that LiSnO2 …
Autonomous vehicle is a technology that uses a self-driving system. Self-driving is a type of autonomous car control that functions to make it easier for humans to drive automatically without driver intervention. One of the important things in a self-driving system is the movement of the car. One of the movements of a self-driving car is automatic reverse movement. In this research, the automat…
Penelitian ini bertujuan untuk menjelaskan persentase dan bentuk miskonsepsi pengetahuan awal (prior knowledge) siswa pada materi rangkaian listrik sederhana menggunakan tes diagnostik four-tier. Deskripsi yang dijelaskan tediri dari memprediksi nyala bola lampu, memprediksi besar arus pada bola lampu dan memprediksi nyala kecerahan bola lampu. Penelitian ini menggunakan metode penelitian deskr…