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All Journal Elektron Jurnal Ilmiah Jurnal Momentum
Fitriadi fitriadi
Politeknik Negeri Padang
Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering

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Perkiraan Tegangan Lewat Denyar Isolator Tegangan Menengah 20 kV Keramik dan Resin Epoksi berdasarkan Data Arus Bocor Valdi Rizki Yandri; Herisajani Herisajani; Fitriadi fitriadi
Elektron : Jurnal Ilmiah Volume 11 Nomor 1 Tahun 2019
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (691.442 KB) | DOI: 10.30630/eji.11.1.98

Abstract

This paper explains the research results of leakage current data and estimation of flashover voltage on ceramics and epoxy resin as 20 kV outdoor insulator in a chamber with tropical climate conditions. The waveform of leakage current (LC) was measured using a digital oscilloscope. The digital data was transferred to a personal computer using a RS-232 cable. The digital data was analyzed using Fast Fourier Transform. The result showed that LC was affected by various environment conditions like temperature, humidity and pollution. LC of ceramics insulator was higher than epoxy resin insulator in low temperature, high humidity and high pollution condition.
Analisis Paralelisasi Konverter Melalui Multi Input - Single Output Transformator Frekuensi Tinggi dengan MatLab Simulink Fitriadi Fitriadi; Valdi Rizki Yandri; Herisanjani Herisanjani
Elektron : Jurnal Ilmiah Volume 12 Nomor 2 Tahun 2020
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/eji.12.2.162

Abstract

Two parallel converters DC/AC with isolated control can be applied by a high frequency transformer with a switching pattern. However, the switching pattern and control technique of the converter needs more research so the process of electrical energy distribution on the parallel output side can produce the optimum value. Furthermore, in this research, parallelization method is applied by utilizing two converters in high frequency transformer with multi input-single output capability controlled by Matlab/Simulink. The input side of transformer consists of two full bridge converters while secondary side represents the parallelization of output side. Two converters DC/AC is simulated by phase shifted full bridge (PSFB) of switching pattern and voltage mode control (VMC) technique. The distribution condition of optimum energy is investigated by observation of influences of ON condition duration of each switching period cycle on input converter to ON condition duration of secondary transformer terminal. The ON condition duration of each converter with switching PSFB is the condition depends on shifted/delay phase of signal on gate control. According to this simulation, optimum ON condition occurs when shifted/delay phase of each gate control signal converter is 135° (α1=α2=135°) and this condition is more efficient than phase of gate control signal is 45° (α1=α2=45°). The simulation results show that larger α of converters give the optimum distribution.
REVIEW MOTODE-METODE REDUKSI PENGGUNAAN ENERGI LISTRIK PADA SISI PELANGGAN Rahmi Berlianti; Fitriadi Fitriadi; Junaidi Asrul
Jurnal Momentum ISSN 1693-752X Vol 19, No 2 (2017): Volume 19 No. 2 Agustus 2017
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kebutuhan energi listrik tiap tahun terus mengalami peningkatan hal ini disebabkan oleh meningkatnya jumlah pelanggan listrik tiap tahunnya. Agar energi lisrik ini dapat dinikmati oleh semua pelanggan dan tidak menimbulkan krisis energi listrik maka, kedepannya pelanggan harus mereduksi penggunaan energi listrik. Jurnal  ini merupakan hasil review dari beberapa jurnal yang dibuat pada berbagai jurnal Internasional yang membahas beberapa metode-metode untuk merereduksi penggunaan energi listrik pada sisi pelanggan.Review dilakukan dengan mengelompokan pelanggan berdasarkan golongan tarif daya tersambung yang terdiri dari pelanggan sektor rumah tangga, pelanggan sektor bisnis, pelanggan sektor umum, pelanggan sektor industri.Metode-metode reduksi  yang sagat baik diterapkan di Indonesia adalah: Mengurangi pemakaian energi pada waktu beban puncak, mengatur jam oprasional penggunaan energi serta mengunakan peralatan hemat energi dan minimizing voltage unbalances Kata-kata kunci : metode reduksi, energi listrik, hemat energi, pelanggan
Peramalan Beban Listrik Kabupaten Pesisir Selatan Dengan Analisis Regresi Zulka Hendri; Efendi Efendi; Junaidi Asrul; Fitriadi Fitriadi
Elektron : Jurnal Ilmiah Volume 15 Nomor 1 Tahun 2023
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/eji.15.1.340

Abstract

The more electric vehicles emerge, the more electricity demand will increase in each region. This will encourage electricity providers to increase the number or capacity of generators. The construction of a new power plant requires load forecasting to determine how much capacity the plant will build. This study aims to predict the electrical load in Pesisir Selatan, West Sumatra until 2031 using linear regression analysis and time series. Forecasting is done on each sector of PLN customers. Forecasting is done based on the PLN customer sector. The forecasting sectors are the household, business, social and government sectors. The four test criteria were carried out are namely the coefficient of determination test (R2), the F test, the T test and the mean absolute percentage error (MAPE). The forecasting results show that in 2031 the electricity load for the household sector is 120.1 MW, the business sector is 5.7 MW, the social sector is 56.9 MW and the government is 9.5 MW.
Co-Authors Asrul, Junaidi Efendi Efendi Herisajani Herisajani Herisanjani Herisanjani Rahmi Berlianti Valdi Rizki Yandri Zulka Hendri