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SISTEM MONITORING PENGISIAN BATERAI PLTS 100 WP MENGGUNAKAN SENSOR PZEM 004T DAN SENSOR TEGANGAN DC Sitti Amalia; Rafika Andari; Sitti Amalia; Christyan Davis Tinambunan
Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Vol 22, No 1 (2022): JURNAL SAINS DAN TEKNOLOGI
Publisher : Sekolah Tinggi Teknologi Industri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36275/stsp.v22i1.461

Energi listrik yang dihasilkan oleh PLTS tidak dapat dimonitor pada saat PLTS dioperasikan. Untuk mengurangi kerusakan panel surya dan meningkatkan kinerjanya, diperlukan suatu sistem yang memonitor kinerja panel. Proses pengisian baterai PLTS menggunakan panel 100 Wp dengan sebuah baterai 12V 45 AH yang berlangsung selama 8 jam. Tahap awal dari proses perakitan sistem monitoring pengisian baterai adalah terlebih dahulu mengkalibrasi sensor tegangan. Setelah proses kalibrasi, kemudian dilakukan penentuan program dan penentuan nilai low dan high yang akan digunakan. Selanjutnya, dilakukan proses penginputan program ke dalam aurduino melalui software aurduino IDE. Hasil pengukuran sensor tegangan DC dan hasil program yang digunakan kemudian diuji. Proses monitoring pengisian baterai PLTS dilakukan selama 3 hari penuh. Setelah dilakukan proses monitoring, nilai rata-rata tegangan yang naik selama pengisian dari 08.00 sampai 15.00 adalah sebesar 0,341 V.

Analisis Perawatan Crane Hoist pada Intake PLTA Maninjau Sitti Amalia; Sitti Amalia; Rafika Andari; Sitti Amalia; Syafeii Syafeii
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v7i10.13094

The purpose of this research is to identify the type of crane hoist and examine the maintenance procedure that must be followed if the PLTA Maninjau Intake Hoist crane sustains damage. At the Maninjau hydropower facility, two treatments are carried out: routine maintenance and repair maintenance. Preventive maintenance (routine) is frequently performed on the PLTA Maninjau intake hoist crane four times a month / once a week. Corrective type maintenance is performed for transformer and contactor damage because it replaces components. As for pendan damage, only predictive type maintenance is carried out. Initially, each crane equipment was checked, then tested by operating the crane and checking which parts had malfunctioned or were damaged based on their use. If the crane being operated is damaged, then a re-check is carried out on the circuit or on the crane equipment that has failed. If the crane has no problem/damage, it means that the crane is in good condition and the inspection is complete.

OPTIMALISASI PEMBANGKIT LISTRIK MATAHARI DENGAN SOLAR TRACKING SYSTEM 4 ARAH Sitti Amalia; Ikhlassul Amal; Andi M Nur Putra; Sitti Amalia; Asnal Effendi
Rang Teknik Journal Vol 6, No 1 (2023): Vol. 6 No. 1 Januari 2023
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Penelitian ini membahas tentang optimalsasi penyerapan intensitas cahaya matahari, untuk mendapatkan penyarapan yang optimal maka pengujian dilakukan dengan membandingkan tegangan yang dihasilkan oleh dua sistem gerak pada solar tracker ini dengan tingkat optimal sistem gerak menggunakan sensor LDR di peroleh paling tinggi 1,15% dengan selisih tegangan paling tinggi 2,2 volt, sehingga pada pengujian didapatkan hasil tingkat ke optimalan dari dua sistem yaitu sistem gerak menggunakan sensor LDR lebih baik dalam menyerap intensitas cahaya dibandingkan sistem gerak menggunakan sistem penundaan waktu.

The Effect of Voltage Changes Toward Time and Temperature Charging of Electrical Vehicle Battery Sitti Amalia; Andi Muhammad Nur Putra; Sitti Amalia
ELECTRON Jurnal Ilmiah Teknik Elektro Vol 4 No 2: Jurnal Electron, November 2023
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/electron.v4i2.63

Technology in electric vehicles (EVs) has emerged as a major topic in the development of environmentally friendly and efficient energy. The battery is one of the most important components of an EV. Using the CCCV charging method, the battery will be more stable when charging. The performance of an EV mainly depends on its battery charging strategy. Consumers want fast charging with long-distance travel and good acceleration. Various filling techniques are currently in use, but research is still ongoing to find which one is more optimal and reliable. Modelling and simulation are very important to find out how to get optimal charging current or voltage, as well as determine the pattern of the charging circuit to shorten the charging time for EVs. This paper proposes a design and method that is carried out by changing the output voltage with a boost converter circuit to see the effect of time and temperature during charging and the simulation results are obtained regarding the length of time for charging Lithium-ion batteries. With the 420 V input voltage and 153 A, the battery is fully charged for 4500 seconds with a maximum temperature of 38° at a voltage of 420 V and the fastest charging time is 1200 seconds at an output voltage of 450 V with a maximum temperature of 62°. A 10 V voltage change resulted in a temperature increase of 6°C and a charging time of 600 seconds for each cycle.

PERANCANGAN SISTEM KONTROL MESIN PERONTOK PADI DENGAN MENGGUNAKAN PWM DIMMER Sitti Amalia; Sitti Amalia; Doni Agrianto; Anggun Anugrah; Sitti Amalia; Andi Syofian
Ensiklopedia of Journal Vol 5, No 4 (2023): Vol. 5 No. 4 Edisi 1 Juli 2023
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/eoj.v5i4.1614

Sistem kontrol speed motor menggunakan PWM dimmer 15A 24 volt merupakan suatu sistem yang dirancang untuk mengontrol kecepatan motor dengan memanfaatkan teknologi PWM (Pulse Width Modulation) dimmer pada sumber tegangan 24 volt dan daya hingga 15A. PWM dimmer digunakan untuk mengontrol duty cycle tegangan listrik yang diberikan ke motor sehingga mengatur putaran motor dan kecepatannya. Sistem kontrol speed motor menggunakan PWM dimmer 15A 24 volt memiliki beberapa komponen utama seperti PWM dimmer, MOSFET driver, MOSFET power switch, inductor, diode, dan resistor. Sinyal PWM yang dihasilkan oleh PWM dimmer dikirim ke MOSFET driver, kemudian diteruskan ke MOSFET power switch yang mengontrol aliran arus menuju motor. Komponen inductor dan diode diatur dalam susunan tertentu untuk menghasilkan sinyal PWM yang lebih halus dan stabil. Dalam pengujian sistem, pengaturan kecepatan motor dilakukan dengan memvariasikan duty cycle sinyal PWM pada PWM dimmer. Hasil pengujian menunjukkan bahwa sistem kontrol speed motor menggunakan PWM dimmer 15A 24 volt mampu mengontrol kecepatan motor secara presisi dan efektif. Sistem ini juga memiliki keuntungan berupa penggunaan daya listrik yang lebih efisien dibandingkan dengan penggunaan resistor sebagai metode pengatur kecepatan motor konvensional. Dalam kesimpulannya, sistem kontrol speed motor menggunakan PWM dimmer 15A 24 volt merupakan solusi yang efektif dan efisien untuk mengontrol kecepatan motor. Penggunaan teknologi PWM dimmer pada sistem ini juga memungkinkan untuk mengatur kecepatan motor dengan presisi dan stabil. Namun, dalam penerapannya, harus diperhatikan bahwa penggunaan MOSFET power switch dan MOSFET driver yang sesuai dengan spesifikasi dapat mempengaruhi kinerja sistem.

PERANCANGAN SISTEM KONTROL MESIN PERONTOK PADI DENGAN MENGGUNAKAN PWM DIMMER Sitti Amalia; Sitti Amalia; Doni Agrianto; Anggun Anugrah; Sitti Amalia; Andi Syofian
Ensiklopedia of Journal Vol 5, No 4 (2023): Vol. 5 No. 4 Edisi 1 Juli 2023
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/eoj.v5i4.1614

Sistem kontrol speed motor menggunakan PWM dimmer 15A 24 volt merupakan suatu sistem yang dirancang untuk mengontrol kecepatan motor dengan memanfaatkan teknologi PWM (Pulse Width Modulation) dimmer pada sumber tegangan 24 volt dan daya hingga 15A. PWM dimmer digunakan untuk mengontrol duty cycle tegangan listrik yang diberikan ke motor sehingga mengatur putaran motor dan kecepatannya. Sistem kontrol speed motor menggunakan PWM dimmer 15A 24 volt memiliki beberapa komponen utama seperti PWM dimmer, MOSFET driver, MOSFET power switch, inductor, diode, dan resistor. Sinyal PWM yang dihasilkan oleh PWM dimmer dikirim ke MOSFET driver, kemudian diteruskan ke MOSFET power switch yang mengontrol aliran arus menuju motor. Komponen inductor dan diode diatur dalam susunan tertentu untuk menghasilkan sinyal PWM yang lebih halus dan stabil. Dalam pengujian sistem, pengaturan kecepatan motor dilakukan dengan memvariasikan duty cycle sinyal PWM pada PWM dimmer. Hasil pengujian menunjukkan bahwa sistem kontrol speed motor menggunakan PWM dimmer 15A 24 volt mampu mengontrol kecepatan motor secara presisi dan efektif. Sistem ini juga memiliki keuntungan berupa penggunaan daya listrik yang lebih efisien dibandingkan dengan penggunaan resistor sebagai metode pengatur kecepatan motor konvensional. Dalam kesimpulannya, sistem kontrol speed motor menggunakan PWM dimmer 15A 24 volt merupakan solusi yang efektif dan efisien untuk mengontrol kecepatan motor. Penggunaan teknologi PWM dimmer pada sistem ini juga memungkinkan untuk mengatur kecepatan motor dengan presisi dan stabil. Namun, dalam penerapannya, harus diperhatikan bahwa penggunaan MOSFET power switch dan MOSFET driver yang sesuai dengan spesifikasi dapat mempengaruhi kinerja sistem.

Comparison of Battery Electric Power Consumption in a Fingerprint System or a Motor Manual Lock System Sitti Amalia; Sitti Amalia; Rafika Andari; Jumadi Arif
PROtek : Jurnal Ilmiah Teknik Elektro Vol 10, No 1 (2023): PROtek : Jurnal Ilmiah Teknik Elektro
Publisher : Program Studi Teknik Elektro Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/protk.v10i1.4285

Motorcycle security systems using fingerprint sensors are needed to avoid theft because of their high level of security compared to manual systems. This study underscores the importance of using this fingerprint sensor for motorcycle security. The formulation of the problem in this study is how much electricity is required in the motorcycle battery for this fingerprint security system. This system uses various components, such as the R503 fingerprint sensor, Arduino Uno, buzzer, 4-channel relay, ignition key, and motorcycle starter. Testing of this system is performed by inserting a finger in a wet, oily, dusty, or normal condition, and the result is that this sensor is capable of detecting the entire condition of the finger. Attempts to start a motorcycle with all ten fingers showed that the left index finger started faster under normal conditions, in 1.55 seconds compared to the manual method, which took 2.05 seconds longer. It also measures power consumption and calculates how long the battery can power this device. The result is that the battery can power this device for 180 hours without interruption

Analisis Perawatan Crane Hoist pada Intake PLTA Maninjau Sitti Amalia; Sitti Amalia; Rafika Andari; Sitti Amalia; Syafeii Syafeii
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v7i10.13094

The purpose of this research is to identify the type of crane hoist and examine the maintenance procedure that must be followed if the PLTA Maninjau Intake Hoist crane sustains damage. At the Maninjau hydropower facility, two treatments are carried out: routine maintenance and repair maintenance. Preventive maintenance (routine) is frequently performed on the PLTA Maninjau intake hoist crane four times a month / once a week. Corrective type maintenance is performed for transformer and contactor damage because it replaces components. As for pendan damage, only predictive type maintenance is carried out. Initially, each crane equipment was checked, then tested by operating the crane and checking which parts had malfunctioned or were damaged based on their use. If the crane being operated is damaged, then a re-check is carried out on the circuit or on the crane equipment that has failed. If the crane has no problem/damage, it means that the crane is in good condition and the inspection is complete.

Modeling and simulation for flashover location determination on 150 kV insulator string Sitti Amalia; Sitti Amalia; Warmi, Yusreni; Amalia, Sitti; Zulkarnaini, Zulkarnaini; Dasman, Dasman; Bachtiar, Antonov; Anthony, Zuriman; Azhar, Hamdi
International Journal of Electrical and Computer Engineering (IJECE) Vol 14, No 4: August 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v14i4.pp3716-3728

The 150 kV Payakumbuh-Koto Panjang transmission line in West Sumatra is located in an area with high lightning activity. Based on Meteorological, Climatological, and Geophysical Agency (BMKG) data (2017-2023), the average number of lightning days per year (IKL: isokeraunic level) reaches 165-173 days/year, and 79% of the transmission towers are located in hilly and rocky areas. This causes contamination of the insulator, which can reduce its performance and cause flashovers in the insulator circuit. However, in the field, finding flash points in insulators is still a challenge. Therefore, simulation must be used as a tool to determine the location of flashover in an insulator circuit that is affected by temperature and humidity. Simulation by modeling flashover provides an effective solution for determining the location of flashover in insulator circuits, which is the novelty of this research. This research compares laboratory test results with manual calculations modeled using Visual Basic 6. The research results show that temperature and humidity have a significant influence on determining the flashover voltage value on the insulator. The flashover locations during the test are the same as the calculated flashover locations, as shown by these simulations and modeling.

Improving the Quality of Operator Tri's 2G 4G Network Based on Walktest Data at Minangkabau International Airport Yona Pramunita Rusali; Sitti Amalia; Andi Sofyan
Journal of Education Technology Information Social Sciences and Health Vol 3, No 2 (2024): September 2024
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/jetish.v3i2.3236

This research investigates improving the quality of 2G and 4G networks for Tri operators at Minangkabau International Airport through walktest data analysis. By leveraging tools such as Tems Investigation and Actix Analyzer, parameters such as RSRP, SINR, RxLevSub, and RxQual are evaluated to optimize network performance. This research aims to meet KPI standards and improve user experience by ensuring smooth connectivity. These findings provide valuable insights into network optimization strategies.

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