SUTET

Analisa Pengaruh Pandemic Covid 19 Terhadap Konsumsi Energi Listrik Di Provinsi Sulawesi Selatan Dengan Metode Regresi Dan Korelasi Linear Sederhana

Tue, 02 Jan 2024 00:00:00 +0700

The level of electricity consumption in an area is affected by population growth and the COVID-19 pandemic. Forecasting electrical energy consumption is one of the important things. Using data from the past, the purpose of forecasting electrical energy consumption is to get an idea of how much electricity will be needed in the future. Therefore, it is necessary to do so in order to forecast the demand for electrical energy, especially in the province of South Sulawesi. This research was conducted to predict electrical energy sold during the 3 years of the Covid-19 pandemic and compare with calculations from PLN and BPS. This study used a simple linear regression method, and a simple linear correlation. With linear regression, it is found that the number of inhabitants has a positive influence on the amount of energy sold. With the T Test obtained RU_t= 18,326 is greater than the limit value of t_cr= 3.182, then Ho = 0 is rejected. So there is a relationship between the increase in population and the consumption of electrical energy. With a linear correlation obtained that between 0.80-1.00 is the value of the correlation coefficient, this means that the correlation is very strong that the population is very influential on the consumption of electrical energy in the province of South Sulawesi.

Optimasi Rekonfigurasi Jaringan Distribusi Tegangan Menengah Kota Medan Menggunakan Algoritma Kunang – Kunang (Firefly Algorithm)

Yoakim Simamora — Tue, 02 Jan 2024 00:00:00 +0700

Network reconfiguration is defined as changing the topological structure of the distribution network configuration by changing the switch position (open state or closed state) of the tie and sectionalizing switches. The main goal of distribution network reconfiguration is to reduce active power losses and improve the voltage profile. In the distribution network reconfiguration process there are many limitations that must not be violated when finding the most optimal distribution network configuration. maintained in radial form and distribution system voltage in the range of -5% and +10% of nominal voltage. the selection of open switches depends on the voltage difference, this results in the discovery of local minima but the process of obtaining the optimal configuration is much faster. In this research, the algorithm proposed is the firefly algorithm, this scheme was tested on the NR7 84 bus 20 kV distribution system in Medan. The results of the analysis using the proposed method obtained a decrease in power loss from 33.21 kW to 24.49 kW or reduced 26.25% with an open switch 84, 9, 10, 17, 19, 26, 29, 75, 34, 39, 43, 95, 96, 97.

Gangguan Hubung Singkat Gas SO2 Terhadap Gas SF6 PMT 150 kV di GI Duri Kosambi

Novi Gusti Pahiyanti — Tue, 02 Jan 2024 00:00:00 +0700

The decrease in the quality of SF₆ gas is caused by the influence of temperature, the use of SF₆ gas and the presence of particles of chemical compounds. In testing the quality of SF₆ gas, the parameters obtained are purity, dew point, moisture content and SO₂. SF₆gas as an insulating medium in PMT150KV that is still effective with a high dielectric factor. So that when a short circuit occurs in PMT 150KV SF6 gas as an insulating medium can extinguish the electric arc rate, good quality is needed. In testing the quality of SF₆ gas, there is a product decompose or SO₂ on Duri Kosambi substation in phase R valued at 150 phase, phase S valued at 140 and phase T valued at 157 whose values exceed the standard limits of the Gas Insulated Substation (GIS) Maintenance Manual and IEC 60480 with a standard value of 12 ppmv. This study aims to analyze the effect of short circuit interference and SO2 gas on SF₆gas quality at PMT 150KV. In GI Duri Kosambi, the value of short-circuit fault currents affecting SF₆gas and SO₂ gas affects the quality of SF₆ gas such as purity, dew point and moisture content. Then it is necessary to reclaim SF6 gas or replace new SF₆ gas.

Pengaruh Pembebanan Terhadap Efisiensi Transformator Distribusi Di PT. PLN (Persero) UP3 Garut

Tue, 02 Jan 2024 00:00:00 +0700

Transformer efficiency is defined as the ratio of the incoming power to the outgoing electric power. Even so the ideal transformer has 100% efficiency, this ideal transformer does not exist, because the energy that goes out is always less than the energy that goes in, meaning that there is energy loss. Load imbalance in an electric power distribution system always occurs and the imbalance is in single-phase loads in low-voltage network subscribers. Due to the load imbalance, a current appears in the neutral of the transformer. Perform analysis and compare efficiency. Analysis of used load capacity is not efficient. Analysis of the results of current and voltage measurements at the substation to obtain efficiency, and transformer losses in day and night conditions using LWBP and WBP methods. In this study, observations were made regarding the transformer efficiency analysis using the Outside Peak Load Time (LWBP) and Peak Load Time (WBP) methods. The LWBP method is carried out during the day for 20 hours, while the WBP method is carried out at night for 4 hours, from 18.00 to 22.00. Then measurements were made at PT. PLN (Persero) UP3 Garut. For the highest percentage of loading which is close to the standard of 80%, namely the afternoon loading at the PDDK substation, which is 50.93%, the load used is 50.93 kVA. The night load at the CITL substation is 77.49%, the load used is 77.49 kVA. For the lowest percentage of loading that deviates from the standard 80%, namely the daytime loading at the SJRK substation, which is 16.32%, the load used is 16.32 kVA. The night load at the SJRK substation is 21.52%, the load used is 21.52 kVA. Based on observations, it is not efficient because the unused load is very large, it is recommended to use a smaller transformer capacity. The highest efficiency in the LWBP method is at the CITK substation 97.87%, the lowest at the PDDK substation 94.55%. The highest efficiency in the WBP method is at SJRK substations 95.5%, the lowest at PDDK substations is 92.1%.

Kontrol Api Pembakaran Untuk Balon Udara Menggunakan Stick PS2

Tue, 02 Jan 2024 00:00:00 +0700

ABSTRACT

Air balloon is a type of airplane that is used as a recreational vehicle. Apart from being a vehicle, air balloons are also used for other needs such as watering agricultural land. The development of this watering tool still needs further research. So that a air balloon can fly and move up and down is greatly influenced by the size and size of the burning flame. The size of the combustion flame is determined by the opening of the tap on the gas cylinder. Therefore, the tap opening on the gas cylinder must be controlled remotely so that the movement of the air balloon can be controlled. The aim of this research is to create a combustion flame control for a hot balloon using a PS2 stick. The method used is that controlling the opening of the gas tap must be done remotely, so it requires radio frequency communication to give commands. From the results of the PS2 stick communication test and the connection was lost at a distance of 34 m. Trials were carried out by varying the sizes of 2 m, 4 m and 7 m balloons. Based on the tests that have been carried out, the balloon can be lifted well, but it cannot lift the load it is carrying.

Keywords: Air balloon, Combustion flame control, PS2 Stick, Radio frequency

ABSTRAK

Balon udara merupakan jenis dari pesawat terbang yang digunakan sebagai wahana rekreasi. Selain sebagai wahana, balon udara juga untuk kebutuhan lain seperti penyiraman pada lahan pertanian. Pengembangan alat penyiraman tersebut masih perlu penelitian lebih lanjut. Agar balon udara dapat terbang dan bergerak naik turun sangat dipengaruhi oleh besar dan kecil api pembakaran. Besar dan kecil api pembakaran ditentukan oleh bukaan keran pada tabung gas. Oleh karena itu, bukaan keran pada tabung gas harus bisa dikontrol secara jarak jauh agar gerak balon udara dapat dikendalikan. Tujuan dari penelian ini adalah membuat kontrol api pembakaran untuk balon udara menggunakan stick PS2. Metode yang digunakan yaitu kontrol bukaan keran gas harus dilakukan secara jarak jauh, sehingga memerlukan komunikasi radio frekuensi untuk memeberikan perintah. Dari hasil pengujian komunikasi stick ps2 dan kontroler koneksi terputus pada jarak 34 m. Ujicoba dilakukan dengan memvariasikan balon dengan ukuran 2 m, 4 m, dan 7 m. berdasarkan pengujian yang telah dilakukan, balon dapat terangkat dengan baik, namun tidak berhasil mengangkat beban yang dibawa.

Kata kunci: Balon udara, Kontrol api pembakaran, Stick PS2, Radio frekuensi

Pengujian Tahanan Konduktor dan Kekuatan Hot Set Isolasi pada Kabel Solar

Nurmiati Pasra, Samsurizal Samsurizal, Nana Suryana — Tue, 02 Jan 2024 00:00:00 +0700

Solar cables are very influential on the safety of Solar Power Plant installations, component damage and fire can occur in installations caused by outer casing dimensions and insulation that do not comply with EN 50396 standards. Conductor resistance that does not meet IEC 60228 standards can cause insulation to break and make cable life shorter. The test results found that VOKSEL type cables have an average value of sheath thickness of 0.90 mm, an average insulation thickness of 0.90 mm and conductor resistance of 4.92? / km, while HENGTONG type cables have an average value of sheath thickness of 0.94 mm, an average insulation thickness of 0.87 mm and a conductor resistance value of 3.20? / km, for APAR-UNICAB type cables have an average value of sheath thickness of 0.88 mm, The average insulation thickness is 0.85 mm and the conductor resistance value is 5.58 ?/km. From these tests, VOKSEL &; HENGTONG type cables have met the standards of both EN 50618 standard tests for dimensions &; IEC 60228 for conductor resistance. Meanwhile, APAR-UNICAB type cables have met the EN 50618 standard for solar cable dimensions but have not met IEC 60228 standards based on conductor resistance testing.

Analisis Faktor-Faktor yang Mempengaruhi Kepuasan Pelanggan dan Keputusan Pembelian Tenaga Listrik Pada PT.PLN (Persero) Jawa Bali

Mohammad Ahsan, Aminullah Assagaf, Eri Prabowo — Tue, 02 Jan 2024 00:00:00 +0700

The purpose of this study is to analyze the factors that influence customer satisfaction and PT PLN (Persero)'s electricity purchase decision in Java, Bali. This study used a sample of PT PLN (Persero) electricity customers in Java and Bali, using a questionnaire of 70 respondents. This study uses linear regression analysis method with data processing through SPSS Statistics, using variables X1 product, X2 price, X3 distribution channel, X4 promotion, X5 service quality as independent, intervenning and dependent variables. The findings of this study, namely first; price and service quality have a significant effect on customer satisfaction, second; Distribution channels and customer satisfaction have a significant influence on PT PLN (Persero)'s electricity purchasing decisions in Java, Bali, and third; together products, prices, distribution channels, promotions, and service quality affect customer satisfaction, and customer satisfaction affects PT PLN (Persero)'s electricity purchase decisions in Java, Bali. The novelty of this study is the model of the relationship of variable promotion of saving electricity use with customer satisfaction and purchasing decisions. The implications of this research are expected to contribute to electricity management and practitioners in achieving customer satisfaction and PT PLN (Persero)'s electricity purchase decisions in Java, Bali, and can be a reference for future research and company management to be considered for its application.

Respon Automatic Generation Control (AGC) & Free Governor (FG) Di PLTU Cilacap 660 MW Terhadap Perubahan Frekuensi Jaringan PLN

Muhammad Isnain Wiyasatama, Hendra Setiawan — Tue, 02 Jan 2024 00:00:00 +0700

ABSTRACT