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Perancangan Pembangkit Tegangan Tinggi DC 7,90 kV – 58,70 kV Menggunakan Konverter Flyback Dessy Dessy; Syamsir Abduh; Maula Sukmawidjaja; Tyas Kartika Sari
Jetri : Jurnal Ilmiah Teknik Elektro Jetri, Volume 18, Nomor 2, Februari 2021
Publisher : Website

It requires a tool in a high voltage laboratory to convert the voltage from a PLN of 220 VAC to a DC high voltage. The study aimed to evoke DC high voltage using the flyback method of coils with the Pulse Width Modulation (PWM) technique raised by microcontrollers within the Arduino system and observed the effect of frequency on spark gaps posed by voltage output from flyback transformers. In this study it has been successfully at a 7.90 kV–58.70 kV DC output voltage using Flyback transformer converters and using PWM techniques. The results of the study showed that with frequencies of 100 Hz, 200 Hz, 300 Hz, 400 Hz, 500 Hz, 600 Hz, 700 Hz, 800 Hz, 900 Hz, 1000 Hz, 2000 Hz, 3000 Hz, and 4000 Hz, yielded output voltages according to Ritz's spark gap theory of 7.9 kV, 1700 kV, 17.00 kV, 24.V, 24.00 kV, 24.V, 24. 24.00 kV, 31.35 kV, 31.35 kV, 39.20 kV, 39.20 kV, 48.35 kV, 48.35 kV, 58.70 kV, 58.70 kV. This test showed that with duty cycles of 50% organized using Arduino the higher the frequency the higher the output voltage generated as the above is listed. Diperlukan suatu alat di laboratorium tegangan tinggi untuk mengubah tegangan dari PLN sebesar 220V AC menjadi tegangan tinggi DC. Penelitian ini bertujuan untuk membangkitkan tegangan tinggi DC menggunakan metode flyback dari kumparan dengan teknik Pulse Width Modulation (PWM) yang dibangkitkan oleh mikrokontroler di dalam sistem Arduino dan mengamati pengaruh frekuensi terhadap spark gap yang ditimbulkan oleh keluaran tegangan dari transformator flyback. Pada penelitian ini telah berhasil di dapatkan tegangan keluaran sebesar 7.90 kV – 58,70 kV DC dengan menggunakan konverter transformator Flyback dan memakai teknik PWM. Hasil penelitian menunjukkan bahwa dengan frekuensi sebesar 100 Hz, 200 Hz, 300 Hz, 400 Hz, 500 Hz, 600 Hz, 700 Hz, 800 Hz, 900 Hz, 1000 Hz, 2000 Hz, 3000 Hz, dan 4000 Hz, menghasilkan tegangan keluaran menurut teori spark gap Ritz sebesar 7.9 kV, 17.00 kV, 17.00 kV, 24.00 kV, 24.00 kV, 31.35 kV, 31.35 kV, 39.20 kV, 39.20 kV, 48.35 kV, 48.35 kV, 58.70 kV, 58,70 kV. Pengujian ini menunjukkan bahwa dengan duty cycle sebesar 50 % yang diatur menggunakan Arduino semakin tinggi frekuensi semakin tinggi tegangan keluaran yang dihasilkan seperti yang tertera di atas.

Perancangan Sistem Pengering Sampah Menggunakan Sisa Gas Pembakaran dan Konveyor Otomatis pada PLTSa Bantargebang dengan Kapasitas 700 kW Rivalni Karamoy; Syamsir Abduh; Maula Sukmawidjaja; Tyas Kartika Sari
Jetri : Jurnal Ilmiah Teknik Elektro Jetri, Volume 19, Nomor 1, Agustus 2021
Publisher : Website

Sampah merupakan salah satu masalah yang ada di sebuah negara. Indonesia menepati urutan ke-2 pemasok sampah terbesar di dunia setelah China. Pembangkit listrik tenaga sampah (PLTSa) merupakan salah salah satu pembangkit dengan energi terbarukan. sampah yang akan digunakan sebagai bahan bakar PLTSa akan di keringkan secara alami dengan penimbuan di ruangan terbuka dan pencacahan dengan crane selama lima hari. Perancangan system pengering sampah menggunakan gas sisa pembakaran dan konveyor otomatis ini bertujuan mempersingkat waktu penyimpanan sampah dan ingin menigkatkan produksi dari Pltsa Bantargebang. Metode penelitian yang digunakan adalah studi literatur. Adapun hasil yang diharapkan dengan menggunakan sistem ini sampah dapat kering hingga kadar air yang tersisa 20% dengan nilai kalori 2000 kkal/kg. Garbage is one of the problems that exist in a country. Indonesia is the second largest supplier of waste in the world after China. The waste power plant (PLTSa) is one of the plants with renewable energy. The waste that will be used as fuel for PLTSa will be naturally dried with an open hoarding and crushing with cranes for five days. The design of a waste dryer system using combustion residual gas and automatic conveyors aims to shorten waste storage time and wants to increase production from PLTSa Bantargebang. The research method used is the study of literature. As for the expected results using this system the garbage can dry up to the remaining 20% water content with a caloric value of 2000 kcal / kg. The method used is to collect data and visit observations to the Bantargebang PLTSa. The results of this research are the drying process becomes shorter and the heating value increases so that it can produce with 700kW.

Analisis Penyeimbangan Beban Transformator Distribusi 400kva 20kv/400v Menggunakan Software ETAP 19.0.1 Jovan Fathin Fawwas; Syamsir Abduh; Tyas Kartika Sari
Jetri : Jurnal Ilmiah Teknik Elektro Jetri, Volume 19, Nomor 2, Februari 2022
Publisher : Website

Research on load imbalance at the distribution transformer substation DK 256 at Perum puri garden aims to reduce the number of load imbalances and the value of electrical power losses. The research method used is the literature method, the observation method, and the interview method. Analysis and calculations to determine the value of losses using ETAP 19.0.1 simulation. From the simulation results of the 19.0.1 ETAP calculation, before the load balancing, the percentage of imbalance at the DK 256 substation was 10.93%. After load balancing, the percentage of unbalance at the DK 256 substation was reduced to 3.64%. For losses that occur in each department at the DK 256 substation after balancing the load it becomes 6.4 kW, reducing the value of losses which is 25.58%. The cost savings from balancing the load at the DK 256 substation against losses flowing to the neutral conductor is Rp. 2,324,172.00/month.Penelitian ketidakseimbangan beban pada gardu transformator distribusi DK 256 di Perum puri garden bertujuan untuk mengurangi angka ketidakseimbangan beban dan nilai losses daya listrik. Metode penelitian yang digunakan adalah metode literatur, metode observasi, dan metode wawancara. Analisis serta perhitungan untuk menentukan nilai rugi-rugi menggunakan simulasi ETAP 19.0.1. Dari hasil simulasi perhitungan ETAP 19.0.1, pada saat sebelum penyeimbangan beban, persentase ketidakseimbangan di gardu DK 256 yaitu sebesar 10,93 %. Setelah penyeimbangan beban, persentase ketidakseimbangan di gardu DK 256 berkurang menjadi 3,64%. Untuk losses yang terjadi pada setiap Jurusan di gardu DK 256 setelah penyeimbangan beban menjadi sebesar 6,4 kW, menghemat energi dari losses sebesar 25,58%. Penghematan energi dari penyeimbangan beban pada Gardu DK 256 terhadap losses yang mengalir pada penghantar netral sebesar Rp 2.324.172,00/bulan.

ANALISIS LAJU PENUAAN ISOLASI KERTAS MENGGUNAKAN ESTER BASED OIL PADA TRANSFORMATOR RAMAH LINGKUNGAN Agung Sukma Hardana; Syamsir Abduh; Tyas Kartika Sari
Jetri : Jurnal Ilmiah Teknik Elektro Jetri, Volume 20, Nomor 1, Agustus 2022
Publisher : Website

Transformer oil function as the cooling medium and electrical insulation component in power transformer. It has to follow minimum acceptable criteria as regulated in international standard, as IEC standard. In general, the most transformer oil used in power transformer is mineral oil. Due to the sustainability of the raw material and the bad impact to the environment, it is important to find the new transformer oil as alternative to the mineral oil. The intention of this reseeach is to study the characteristic of the ester based oil: breakdown voltage, tangen delta and color. Analyis was performed by comparing the characteristic from both oils, and reviewed the parameters against the minimum criteria as required by IEC standard. Based on the analysis, ester based oil fulfill criteria and can be used for the transformer oil. Furthermore, based on the degree polymerization test result from the paper insulation immersed in both oils, it can be concluded that the insulation paper immersed in ester based oil has slower aging rate than insulation paper immersed in mineral oil.

A Deteksi Kekurangan Pelumas Bearing untuk Mencegah Kerusakan pada Motor Induksi Kompresor Udara Varel Farhan Cachandra; Chairul Gagarin Irianto; Ishak Kasim; Tyas Kartika Sari
Jetri : Jurnal Ilmiah Teknik Elektro Jetri, Volume 20, Nomor 2, Februari 2023
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jetri.v20i2.15597

The induction motor is one of the most important parts in the industrial world today, so if an induction motor is damaged it can affect the production process. Therefore, disturbances that exist in induction motors must be predicted or detected as early as possible. One of the causes of bearing damage is lack of lubrication which can cause an increase in motor temperature, noise, vibration and sparks which can cause damage to other parts of the induction motor. So the authors will conduct research using four different parameters namely starting current, vibration, and temperature on Air Compressor motors whose maintenance treatment in re-lubrication is carried out differently. In this study it was found that if the lubrication on the bearings is not maintained properly then the vibration value is very high at 23 to 24 mm/s, the starting current itself increases up to 8 times the nominal current where this can cause large voltage losses, the current is above the nominal current of the motor, which is 133% of the nominal current, with dry lubrication on the bearings of the induction motor, friction cannot be minimized so that the temperature of the motor increases where data is obtained on the temperature rise of the induction motor for 5 minutes the motor works at 74.3⁰ C and this can endanger the induction motor itself, it can be concluded that the lack of lubrication on induction motor bearings affects 4 parameters mentioned before. Keywords: 3 phase induction motor, Air Compressor, Bearing, Lubrication Oil, Vibration

A Perancangan Prototipe Monitoring Ketinggian Air Berbasis IoT Menggunakan Panel Surya Sebagai Sumber Energi Listrik Tyas Kartika Sari; Dianing Novita; Syamsir Abduh; Maulasukma Widjaja
Jetri : Jurnal Ilmiah Teknik Elektro Jetri, Volume 20, Nomor 2, Februari 2023
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jetri.v20i2.15606

The high pollution and flooding in the rainy season is one of the problems faced by big cities in Indonesia, especially the capital city DKI Jakarta. To be able to reduce pollution and the effect of greenhouse gases, one way is to use environmentally friendly energy sources. The use of solar panels as an alternative source of electrical energy is an alternative to reduce the use of fossil energy. Based on these problems, the purpose of this research is to design a photovoltaic system for monitoring water levels based on IoT. The benefit that can be obtained from this research is that the river water level can be monitored in real time using an IoT-based water level monitoring prototype. Furthermore, designing prototypes and IoT systems can be carried out, in this study Arduino, web and also android applications are used. The alarm will turn on if the deep water level is above the predetermined limit. In the prototype there are three color LED lights as an indicator to mark the water level, the green color indicates that the water level is safe, the yellow color indicates that the water level is close to the safe limit and the red color indicates that the water level is above the limit. safe and dangerous. Key Word : Photovoltaic, flood, pollution, monitoring, IoT

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