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Optimisasi Kapasitas Sistem Hibrid (Hydro-Bio-Disel Genarator) Dengan Hydro Generator Sensitivity Zulkifli Zulkifli
INOVTEK - Seri Elektro Vol 3, No 2 (2021): INOVTEK Seri Elektro
Publisher : Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/ise.v3i2.2044

Abstract

Tulisan ini fokus pada sistem hibrid Hydro Generator, Bio Generator, Disel Generator, Baterai dan Converter (HG/BG/DG/B/C) yang akan mensuplai energi listrik (AC load) sebuah industri kecil berdasarkan beban asumsi (theoretical load) rata-rata 300 kWh/d dengan puncak 53 kWp/d. Beban listrik, komponen-komponen hibrid dan sumber energi terbarukan (biomass) akan disimulasikan dengan menggunakan HOMER untuk menentukan kelayakan pembangunan pembangkit. Hasil menunjukkan bahwa dari 200 konfigurasi yang dihasilkan setiap sensitivitas hydro generator, terdapat satu konfigurasi yang dengan nilai ekonomi (COE, TCC, NPC, OC) terendah dan layak dikembangkan untuk melayani beban AC 300 kWh/d dan 53 kWp/d. Nilai ekonomi masing-masing konfigurasi optimal akan berkurang seiring dengan meningkatnya kapasitas hydro generator. Minimalnya nilai ekonomi ini disebabkan fraksi penggunaan energi terbarukan di atas 94% yang mana produksi energi listrik lebih dominan disumbangkan oleh hydro generator dan bio generator. Tetapi penurunan nilai ekonomi suatu konfigurasi sistem optimal ini menyebabkan kelebihan energi listrik (excess electricity).
Rancang Bangun Vertical Wind Axis Turbin (VWAT) Dua Tingkat Jefri Lianda; Zulkifli Zulkifli
Seminar Nasional Teknologi Informasi Komunikasi dan Industri 2016: SNTIKI 8
Publisher : UIN Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (591.263 KB)

Abstract

This paper focuses on improving the performance of vertical axis wind turbines (VWAT)to generate electricity through a permanent magnet generator. One method possible use is theselection of the number and angle Savonius windmill. Savonius turbines are known to have lowefficiency, but the construction is cheap and simple, and can receive wind from any directionand high starting torque. The focus of this study is to test the performance of a wind turbineSavonius 2 levels . This research resulted in a windmill with 59 watts of power . Average voltageis generated in the form of 3 -phase AC voltage of 6,57 volt AC to 18,61 volt AC , and thenstored into the battery using the battery charger.Keywords: permanent magnet generator, savonius, VWAT
Analisa Dan Rancang Bangun Alat Pendeteksi Gangguan Fuse Cut Out Melalui Notifikasi Telegram Berbasis Global Positioning System Hikmatul Amri; Zulkifli Zulkifli; Endang Setio Rini
JTEV (Jurnal Teknik Elektro dan Vokasional) Vol 9, No 1 (2023): JTEV (Jurnal Teknik Elektro dan Vokasional)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtev.v9i1.121267

Abstract

The electric power system must be able to provide a continuous supply of electrical energy with a standard amount of voltage and frequency in accordance with applicable regulations and the system must immediately return to normal conditions if the system experiences a disturbance. This tool is used to detect faults and the location of the fuse cut out (FCO). PZEM-004T sensor to read the voltage of each phase. Neo-6M GPS to get the coordinates of the location which is accessed via Google Map, then the Telegram bot sends a message to the feeder status information, the location connected to the Google Map, the transformer address and the voltage value after the disturbance. The average difference between the actual location distance to the location recorded by GPS NEO-6M is 4.10 meters and recorded by GPS Coordinates is 6.90 meters. The average percentage error of voltage values for each phase in the measuring instrument and in the sensor is in the R = 0.62 % phase, S = 8.94 % and T = 8.57 %. The Telegram bot sends a message when the FCO in the S phase is decided, namely the S Phase status is Lost, because the voltage in the S phase decreases from 221.9 V AC to 117.7 V AC, with the average duration of sending Telegram bot messages is 41.3 seconds.
Factors Related with Unsafe Action in Palm Oil Harvesters at PT. Priatama Riau Kebun Rupat Island Iskandar Iskandar; Y. Denny A. Wahyudiono; Noeroel Widajati; Zulkifli Zulkifli
The Indonesian Journal of Occupational Safety and Health Vol. 12 No. 2 (2023): The Indonesian Journal of Occupational Safety and Health
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ijosh.v12i2.2023.246-255

Abstract

Introduction: Work accidents can be caused by unsafe action factors in the field, such as not wearing personal protective equipment (PPE), not following work procedures, and not following work safety regulations. The purpose of this study was to analyze the factors related to unsafe actions (unsafe behavior) in oil palm harvesters at PT Priatama Riau. Methods: This is an observational study. The study population consisted of 111 workers in the plantation harvester section. The research sample was calculated using the Slovin formula for as many as 86 workers. The independent variables consisted of OHS knowledge, attitudes, education, length of working period, age, OHS supervision, and OSH training. The dependent variable was Unsafe Action (unsafe behavior). Essential information was obtained through meetings, perceptions, and polls. The information collection instruments used in this study were survey sheets, agenda sheets, and cameras for documentation. Data analysis consisted of univariate and bivariate analyses. Bivariate analysis was performed using the chi-squared statistical test. Results: The factors related to unsafe action/unsafe behavior in oil palm harvesters were sex, years of service, knowledge, attitudes, OHS supervision, OHS training, and unsafe conditions. Conclusion: Judging from the factual test as a whole or together, the factors of tenure, gender, attitude, knowledge, OSH supervision, OSH training, work equipment, and unsafe conditions are related to Unsafe Actions.