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Jurnal Amplifier: Jurnal Ilmiah Bidang Teknik Elektro dan Komputer
Published by Universitas Bengkulu
ISSN : 20892020     EISSN : 26222000     DOI : https://doi.org/10.33369/jamplifier
Core Subject : Science, Engineering,
Computer Science & IT Electrical & Electronics Engineering Engineering
Jurnal Amplifier: Jurnal Ilmiah Bidang Teknik Elektro dan Komputer is a scientific communication media which is issued by the Study Programme of Electrical Technic, Faculty of Technic, the University of Bengkulu, with the p-ISSN 2089-2020 and e-ISSN 2622-2000. It is published twice a year in the months of May and November. The authors are required to register in advance and upload the manuscript online. The process of the manuscript could be monitored through OJS. Authors, readers, editorial board, editors, and peer review could obtain the real-time status of the manuscript. A hard copy of the journal could be purchased by the system. Several other changes are informed in Journal History
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 6 Documents
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Search results for , issue "Vol. 12 No. 2 (2022): Amplifier November Vol. 12, No. 2 2022" : 6 Documents clear
Kombinasi Metode Entropy dan Simple Additive Weighting (SAW) dalam Pemilihan Dosen Pembimbing Skripsi Nisa, Halimatun; Aulia, Fitrahuda; Rayhan, Annisa
JURNAL AMPLIFIER : JURNAL ILMIAH BIDANG TEKNIK ELEKTRO DAN KOMPUTER Vol. 12 No. 2 (2022): Amplifier November Vol. 12, No. 2 2022
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jamplifier.v12i2.21733

Abstract

In the preparation of the thesis, students need a supervisor as a place of consultation in completing the thesis. The supervisor should be a person who mastered the field in accordance with the topic of student thesis, so that the guidance process can run optimally. Thesis is one of the graduation requirements to obtain a bachelor's degree. Generally, the selection of thesis supervisors is decided by the study program through a meeting of lecturers to determine which lecturers are in accordance with the title and description of the students who took the thesis course. To solve this problem, a solution is needed that can take into account the specifications of lecturer expertise that suits the needs of students. The Entropy method is an alternative to solve this problem. This method was chosen because it is able to select the best alternatives from a number of alternatives, in this case the intended alternative is to be a supervisor and examiner based on the specified criteria. Research is carried out by looking for the weight value for each attribute, then a casting process is carried out that will determine the optimal alternative, namely the four lecturers whose specification values are highest.Keyword: Decision Support System, Entropy, Thesis
Analisis Aliran Daya Pada Sistem Stand Alone Pembangkit Listrik Tenaga Mikro Hidro (PLTMH) Al Hanan Dengan Metode Newton Rhapson Herawati, Afriyastuti; Putra, Ripo Utama; Handayani, Yanolanda Suzantry; Anggraini, Ika Novia
JURNAL AMPLIFIER : JURNAL ILMIAH BIDANG TEKNIK ELEKTRO DAN KOMPUTER Vol. 12 No. 2 (2022): Amplifier November Vol. 12, No. 2 2022
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jamplifier.v12i2.24504

Abstract

Analysis of power flow in the power system is used to determine the parameters of the system itself. The benefit of the power flow analysis is to determine whether the amount of power in the electric power system still meets the predetermined limits, as well as to determine the number of existing losses, and to obtain the initial conditions for planning the new system. To solve the power flow problem, a power flow simulation can be performed using ETAP software. Simulations were carried out using the Newton-Rhapson method to determine the flow of power during the rainy and dry seasons. The results of the power flow simulation in the rainy season show that the highest active and reactive power values ​​are found in bus 1, namely 156.78 kW and 101.77 kVAR, while the simulation during the rainy season shows the highest active power and reactive power in bus 1, which is 137.85 kW and 88.97 kVAR. Then the highest voltage drop in the rainy season is 3.11% and the dry season is 2.78%. The Newton-Rhapson method requires 2 iterations to reach a convergent value.
Sistem Pakar Certainty Factor Berbasis Andorid Untuk Identifikasi Kecocokan Lahan Teknologi Salibu Fitrilina, Fitrilina; Syafrizal, Rifky; Latif, Melda; Wahyuni, Ullya Mega
JURNAL AMPLIFIER : JURNAL ILMIAH BIDANG TEKNIK ELEKTRO DAN KOMPUTER Vol. 12 No. 2 (2022): Amplifier November Vol. 12, No. 2 2022
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jamplifier.v12i2.25263

Abstract

Indonesi merupakan Negara dengan konsumsi tanaman padi tertinggi di dunia. Pemerintah mentargetkan swasembada beras sehingga terus mengusahakan peningkatan produktivitas padi nasional. Salah satu solusinya adalah dengan mengembangkan teknologi Salibu. Pengembangan Teknologi Salibu selain memberi banyak keuntungan juga memiliki kendala, seperti tidak semua daerah dapat menerapkan teknik ini dan tenaga ahli yang masih kurang dan belum tersebar. Oleh karena itu, pada penelitian ini dirancang suatu aplikasi yang mampu merekomendasikan kondisi suatu daerah Cocok atau Tidak Cocok atau Cocok Bersyarat untuk diterapkan teknologi Salibu. Aplikasi yang dirancang menggunakan sistem pakar dengan metode Certainty Factor dan interface Android. Hasil yang didapat interface berkerja dengan baik. Tingkat akurasi 91,11 % dan kepuasan pengguna 90,5 %. Oleh karena itu dapat dikatakan aplikasi sistem pakar untuk mengidentifikasi kecocokan suatu daerah menerapakan tekonologi Salibu telah dapat digunakan.
Pengujian Tahanan Isolasi Pada Transformator Distribusi 160 kVA Di PT. PLN (PERSERO) UP3 Bengkulu Indra, Mandalahi Haldigian; Yanolanda Suzantry Handayani; Priyadi, Irnanda
JURNAL AMPLIFIER : JURNAL ILMIAH BIDANG TEKNIK ELEKTRO DAN KOMPUTER Vol. 12 No. 2 (2022): Amplifier November Vol. 12, No. 2 2022
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jamplifier.v12i2.25274

Abstract

The power transformer is a high voltage equipment that functions as a distributor of electric power from high voltage to low voltage or from low voltage to high voltage. If the transformer's isolation condition deteriorates, it can have an impact on operating failure and the most fatal is that the transformer is damaged which can cause electrical system disturbances. To overcome this it is necessary to test the insulation resistance. This test is carried out using the polarization index method to determine the feasibility of the insulation resistance in the transformer. The use of this method is the most accurate and effective way to determine the feasibility of insulation resistance in transformers at distribution substations in Indonesia. This study took data at the location of PT. PLN (Persero) UP3 Bengkulu. In the insulation resistance test, the polarity index measurement results are obtained. Based on the data that has been collected then proceed with calculations and analysis to obtain better results. The ground-primary polarization index value shows that it is in good condition with a primary-ground value of 1.25 and a secondary-ground polarization index value of 1.5 (good standard between 1.25 – 2.0).
Rancang Bangun Pembangkitan Generator Marx 10 Tingkat pada Uji Kapasitor 220 pF dan Lightning Protector Rodiah, Yuli; Putri, Nilda Tri; Anggraini, Ika Novia; Herawati, Afriyastuti; Rizki, M.
JURNAL AMPLIFIER : JURNAL ILMIAH BIDANG TEKNIK ELEKTRO DAN KOMPUTER Vol. 12 No. 2 (2022): Amplifier November Vol. 12, No. 2 2022
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jamplifier.v12i2.24945

Abstract

The Marx generator circuit is an impulse voltage multiplier that is used to represent lightning overvoltage and switching overvoltage. In this research, a 10-level Marx Generator impulse generator design was carried out by varying the distance between the spark gaps of 2.5mm, 5.0mm, 7.5mm, and 10.0mm and the test load was a 220pF capacitor and a lightning protector. The results of the design and simulation of the 10-level Marx Generator produce an impulse voltage according to the IEC 60060-1 lightning impulses standard, which is 20.20kV with a wavefront and tail time of 2.29 µs and 52.3 µs. The test results for the 220pF capacitor load at a distance of 2.5 mm, the resulting voltage is 23.5 kV with a wavefront and tail time of 1.7 µs and 25 µs, while the lightning protector test load produces a voltage of 24 kV, with a wavefront and tail time of 2.1 µs and 43 µs
Analisa Sistem Load Frequency Control dengan Metoda Linear Quadratic Gaussian (LQG) dan Linear Quadratic Gaussian-Loop Transfer Recovery (LQG-LTR) Laksono, Heru Dibyo; Novizon; Widi Adriana , Anisa
JURNAL AMPLIFIER : JURNAL ILMIAH BIDANG TEKNIK ELEKTRO DAN KOMPUTER Vol. 12 No. 2 (2022): Amplifier November Vol. 12, No. 2 2022
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jamplifier.v12i2.25908

Abstract

Artikel ini mendeskripsikan perancangan dan analisa sistem Load Frequency Control (LFC) tipe non reheat tanpa dan dengan metoda Linear Quadractic Gaussian (LQG) dan metoda Linear Quadratic Gaussian – Loop Transfer Recovery (LQG – LTR). Sistem Load Frequency Control (LFC) tipe non reheat dinyatakan dalam bentuk persamaan keadaan. Pengendali dirancang dengan metoda LQG dan metoda LQG – LTR dengan bantuan perangkat lunak Matlab serta berdasarkan kriteria perancangan tertentu. Analisa yang dilakukan meliputi analisa tanggapan peralihan, analisa tanggapan domain frekuensi untuk fungsi alih lingkar terbuka, analisa tanggapan domain frekuensi untuk fungsi alih lingkar tertutup dan analisa kekokohan. Untuk analisa tanggapan peralihan, parameter yang diamati waktu naik, waktu puncak, waktu keadaan mantap dan nilai lewatan maksimum. Untuk analisa tanggapan domain frekuensi untuk fungsi alih lingkar terbuka, parameter yang diamati adalah margin penguatan. Untuk analisa tanggapan domain frekuensi untuk fungsi alih lingkar tertutup, parameter yang diamati adalah lebar pita. Untuk analisa kekokohan, parameter yang diamati adalah nilai puncak sensitivitas dan nilai puncak sensitivitas komplementer. Hasil perancangan memeperlihatkan bahwa dengan pengendali LQG – LTR, sistem Load Frequency Control (LFC) memenuhi kriteria perancangan. Adapun nilai parameter yang diperoleh dari tanggapan peralihan meliputi waktu naik sebesar 0.1002 detik, waktu puncak sebesar 0.5086 detik, waktu keadaan mantap sebesar 1.6343 detik dan nilai lewatan maksimum sebesar 17.9010 %. Nilai parameter yang diperoleh dari tanggapan domain frekuensi untuk fungsi alih lingkar terbuka yaitu margin penguatan sebesar tidak terhingga dan nilai parameter yang diperoleh dari tanggapan domain frkeuensi untuk fungsi alih lingkar tertutup yaitu lebar pita sebesar 19.7040 rad/detik dan nilai parameter yang diperoleh dari analisa kekokohan yaitu nilai puncak sensitivitas sebesar 1.1591 dan nilai puncak sensitivitas komplementer sebesar 0.9160.

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