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All Journal Jurnal Teknoin Transmisi: Jurnal Ilmiah Teknik Elektro Jurnal Teknik Elektro Elkom: Jurnal Elektronika dan Komputer Jurnal Teknologi Elektro JETT (Jurnal Elektro dan Telekomunikasi Terapan) RELE: Rekayasa Elektrikal dan Energi Jurnal Teknik Elektro Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Ensiklopedia of Journal Jurnal Inovator Eksakta : Berkala Ilmiah Bidang MIPA Jurnal Review Pendidikan dan Pengajaran (JRPP) Indonesian Journal of Electrical Engineering and Computer Science Journal of Electrical Power Control and Automation (JEPCA) Bulletin of Community Engagement ARZUSIN: Jurnal Manajemen dan Pendidikan Dasar QISTINA: Jurnal Multidisiplin Indonesia Journal of Education Technology Information Social Sciences and Health Central Publisher Jurnal Teknologi dan Vokasi JPNM : Jurnal Pustaka Nusantara Multidisiplin Jurnal Multidisiplin Teknologi dan Arsitektur JECCOM Journal of Humanities Education Management Accounting and Transportation

Arfita Yuana Dewi

Institut Teknologi Padang

Author-ID : 252415

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Neuroscience Nursing Physics Public Health Social Sciences Transportation Other

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PEMANFAATAN ENERGI SURYA SEBAGAI SUPLAI CADANGAN PADA LABORATORIUM ELEKTRO DASAR DI INSTITUT TEKNOLOGI PADANG Arfita Yuana Dewi
Jurnal Teknik Elektro Vol 2, No 3 (2013): Jurnal Teknik Elektro
Publisher : Situs resmi ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (558.147 KB)

Energi surya merupakan energi terbesar di bumi yang dapat dikonversikan menjadi energi listrik. Energi ini dimanfaatkan oleh manusia dalam memenuhi kebutuhan yang sangat diperlukan pada masa sekarang dan mendatang. Sasaran pemanfaatan listrik surya adalah elektrifikasi untuk daerah terpencil sebagai pemerataan hasil pembangunan, pemanfaatan energi lokal sebagai pelaksana kebijaksanaan pemerintah tentang penggunaan energi terutama non BBM, dan sebagai energi alternatif untuk keperluan cadangan energi pada konsumen listrik. Selain itu energi surya dapat juga dimanfaatkan untuk pembangkit listrik sebagai cadangan pada penggunaan laboratorium apabila aliran listrik tidak menyala. Penelitian terlebih dahulu melihat karakterisrtik energi listrik yang dihasilkan oleh pembangkit listrik tenaga surya (PLTS). Karakteristik ini dipengaruhi oleh beberapa hal diantaranya kondisi cuaca dan lamanya penyinaran pada suatu daerah yang berpengaruh terhadap nilai intensitas cahaya, tegangan (V), arus (I) dan daya yang dapat ditimbulkan. Dari penelitian didapatkan Panel surya yang terpasang dapat menghasilkan daya 431.55 Watt selama 9 jam penyinaran matahari selama satu hari.

PREDIKSI PERKEMBANGAN BEBAN LISTRIK DI KECAMATAN RANAH PESISIR SAMPAI TAHUN 2025 Arfita Yuana Dewi; Arynugraha Tri Saputra
Jurnal Teknik Elektro Vol 4, No 1 (2015): Jurnal Teknik Elektro
Publisher : Situs resmi ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (212.169 KB)

Tersedianya tenaga listrik yang mudah dapat memenuhi kebutuhan masyarakat serta menjamin kwalitas pelayanannya, syarat yang penting untuk meningkatkan taraf kehidupan masyarakat maka untuk itu diperlukan listrik yang sesuai dengan kebutuhan masyarakat Kec. Ranah Pesisir, maka salah satu usaha yang dapat dilakukan adalah diperlukan perkiraan perkembangan energi listrik yang akan terjadi di Kec. Ranah Pesisir sampai tahun 2025. Penelitian ini dilakukan untuk memperoleh prediksi laju perkembangan beban listrik yang terjadi di Kec.Ranah Pesisir mulai tahun 2010 sampai tahun 2025, berdasarkan data-data perkembangan beban listrik dimasa lalu. Berdasarkan data dari PT. PLN (Persero) Kantor Ranting Balai Selasa bahwa pada tahun 2000 ada 2.261 pelanggan yang mana jumlah daya tersambung sebesar 1.088.600 VA dan jumlah pemakaian energi listrik sebesar 104.193 kWh. Berdasarkan analisa data dan hasil pembahasan prediksi beban listrik dari tahun 2010 sampai tahun 2025 menggunakan metode` persamaan eksponensial yang memiliki nilai standar error terkecil. Berdasarkan hasil perhitungan diperkirakan pada tahun 2025 nanti jumlah pelanggan listrik sebanyak 9.575,38 pelanggan, jumlah daya tersambung 14.401.741,92 VA dan jumlah konsumsi energi listrik 1.602.199,84 kWh.

Analisis Terjadinya Arus Netral Pada Trafo Distribusi 160 kVA Arfita Yuana Dewi; Asnal Effendi; Fahody M Syafar
Journal of Electrical Power Control and Automation (JEPCA) Vol 4, No 1 (2021): Juni
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jepca.v4i1.45

The Power distribution in a 3-phase system, cannot be separated from the flow of current in the neutral of the transformer, which will cause power losses (losses) where current flows into the neutral conductor and losses that flow into the neutral conductor. This study was conducted to determine the causes and magnitude of power losses that occur due to the occurrence of neutral current flowing in the neutral conductor in a 160kVA distribution transformer. The research location taken is the Distribution Transformer (G187 T) which is located on Jl. Hos Cokroaminoto Wisma Ombilin where load imbalances often occur. From the results, it can be seen that if the neutral wire has a cross-sectional size of 50 mm2, the current that passes through the neutral wire is 6.4% for the day and for the cross-sectional size of the wire is 70 mm2, it can reduce the power flowing to the neutral by a percentage of 4.77%. for the daytime. Efficiency value that occurs is greater at night that is 94.87% while for the day it is 93.44%. For the distribution of each - each phase, especially the S phase, so that it can be balanced because the power supplied to the S phase is too small. We recommend that the current flowing in the neutral wire must be channeled to the ground so that the current flowing in the neutral wire becomes zero.

Studi Intensitas Cahaya Matahari Dengan Data Logger Untuk Efektiv Penempatan Panel Surya Asnal Effendi; Arfita Yuana Dewi; Siti Amalia; Dedy Alfianto
Journal of Electrical Power Control and Automation (JEPCA) Vol 4, No 1 (2021): Juni
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jepca.v4i1.44

Renewable energy is energy produced from natural sources, such as light, wind, rain, tidal currents, and geothermal, which is renewable or can naturally reappear after being used. In this study, a study of the effectiveness and efficiency of power plants in certain locations. For this reason, it is necessary to design a tool in the form of a data logger that is used to collect parameter data such as light intensity, electric voltage, electric current, power, temperature, humidity, wind speed, and others. The placement of the data logger will help in the basic test of the feasibility of using energy sources later. Data logger is a system that can record automatic parameters of current, voltage, power on solar panels and automatically record conditions of temperature, humidity in the solar panel. The results of logger data on light intensity for a more efficient placement of solar panels occur at location 1 Beach behind Kmpus UBH 1, where at that location has an average light intensity of 798.24 Cd.

ANALISA PENGARUH CUACA TERHADAP LOSSES DAN PENURUNAN EFFISIENSI AKIBAT KORONA PADA SUTT 150 KV Arfita Yuana Dewi; Asnal Effendi; Erhaneli Erhaneli; Febtria Gita
Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Vol 21, No 2 (2021): JURNAL SAINS DAN TEKNOLOGI
Publisher : Sekolah Tinggi Teknologi Industri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36275/stsp.v21i2.401

Saluran transmisi merupakan bagian yang tidak terpisahkan dalam penyaluran energi listrik ke konsumen. Saluran yang memiliki tegangan tinggi ini bertujuan untuk memperkecil rugi- rugi daya (losses), tetapi dengan tingginya tegangan akan menimbulkan permasalahan baru yaitu timbulnya korona yang akan menyebabkan timbulnya losses, noise, interferensi terhadap saluran komunikasi. Rugi-rugi korona dipengaruhi oleh jari-jari kawat, jarak antar kawat, keadaan permukaan kawat dan pengaruh temperatur atau cuaca. Tujuan dari penelitian ini adalah melihat pengaruh cuaca terhadap losses dan penurunan effisiensi yang diakibatkan oleh korona pada Saluran Udara Tegangan Tinggi (SUTT) 150 kV pada GI Payakumbuh – GI Koto Panjang dengan panjang saluran 84,84 km. Hasil penelitian pada cuaca baik losses akibat korona tertinggi pada suhu maksimum sebesar 755,92 kW dan terendah pada suhu udara minimum sebesar 702,47 kW. Sedangkan effisiensi tertinggi terjadi pada suhu minimum sebesar 96,89%. terendah terjadi pada suhu maksimum sebesar 96,62 %. Dengan adanya penurunan effisiensi maka losses yang terjadi mencapai 3,38 % .Pada cuaca buruk losses yang disebabkan oleh korona tertinggi pada suhu maksimum sebesar 262,15 kW. Dengan adanya penurunan effisiensi maka losses yang terjadi akibat korona mencapai 1,02 % , yang masih dalam keadaan stabil dimana belum melebihi Standar SPLN No.72 Tahun 1987 yakni sebesar 5%, namun untuk meminimalisir losses dapat dilakukan dengan memperkecil nilai tahanan kawat atau menambah jumlah kawat per-phasa.

Study Pengisian Energi Ke Baterai Terhadap Output Energi Panel Surya Dengan Menggunakan Solar Tracker 4 Axis Sitti Amalia; Asnal Effendi; Frasha Kusuma; Andi M Nur Putra; Sitti Amalia; Arfita Yuana Dewi
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Publisher : RELE (Rekayasa Elektrikal dan Energi) : Jurnal Teknik Elektro

Abstrak Kebutuhan energi yang semakin besar untuk dapat mendorong manusia melakukan penelitian pemanfaatan energi matahari untuk dikonversikan menjadi energi listrik dengan menggunakan panel surya dapat bergerak mengikuti matahari atau disebut dengan solar tracker yang akan dihubungkan kebaterai untuk menyimpan energi. Tujuan dilakukan penelitian untuk melihat kinerja penyimpanan energi panel surya terhadap baterai, dan mengetahui kerja monitoring penyimpanan baterai dengan menggunkan IoT. Penelitian dilakukan dengan menganalisa data alat dengan mengukur tegangan keluaran dari panel surya, arus yang mengalir ke baterai dan tegangan terisi baterai. Dengan panel surya mengikuti cahaya matahari dan panel surya yang tetap untuk melakukan pengisian baterai dan akan dipantau dengan menggunakan Internet Of Things (IoT) yang dapat diakses melalui WEB dan smartphone android melalui aplikasi. Berdasarkan hasil pengujian yang didapatkan pengisian baterai dengan solar tracker lebih cepat dibanding pengisian baterai dengan panel tetap. Selisih penyerapan energi pada pengisian baterai dengan kapitas 6,5Ah sebesar 11.937Ah dengan efesiensi pengisian baterai sebesar 1.48%. Sistem monitoring dengan IoT pengisian baterai dengan solar tracker sebesar 12.35 Volt dan arus sebesar 2.2 Ampere. Sedangkan untuk panel surya tanpa solar tracker diperoleh tegangan pengisian baterai sebesar 11.42 Volt dan arus sebesar 0.300 Ampere.Kata kunci : Panel Surya, Solar Tracker, BateraiAbstract The growing need for energy to encourage humans to research the use of solar energy to be converted into electrical energy by using solar panels that can move to follow the sun or called a solar tracker will be connected to a battery to store energy. This research aims to see the performance of solar panel energy storage on batteries and to know the work of monitoring battery storage using IoT. The research was conducted by analyzing device data by measuring the output voltage of the solar panel, the current flowing into the battery, and the voltage charged to the battery. With solar panels following sunlight and fixed solar panels to charge the battery and will be monitored using the Internet of Things (IoT) which can be accessed via the WEB and android smartphones through the application. Based on the test results, it was found that charging the battery with a solar tracker is faster than charging the battery with a fixed panel. The difference in energy absorption when charging a battery with a capacity of 6.5Ah is 11,937Ah with a battery charging efficiency of 1.48%. Monitoring system with IoT battery charging with a solar tracker of 12.35 Volts and a current of 2.2 Ampere. Meanwhile, for solar panels without a solar tracker, the battery charging voltage is 11.42 Volts and the current is 0.300 Ampere.Keywords: Solar Panel, Solar Tracker, Battery Keywords : Solar Panel, Solar Tracker, Battery

Analisa Sistem Manajemen Pengoperasian Bahan Bakar Boiler Arfita Yuana Dewi; Asnal Effendi; Egi Alfian
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Publisher : RELE (Rekayasa Elektrikal dan Energi) : Jurnal Teknik Elektro

Abstrak Manajemen pengoperasian bahan bakar boiler bertujuan untuk mengelola bahan bakar dengan baik dan teratur serta dapat mengoptimalkan pembiayaan bahan bakar dan mengefesiensikan penanganan bahan bakar pada tahap proses produksi bahan bakar boiler. Manajemen pengoperasian bahan bakar boiler dilakukan pada PT. Bakrie Pasaman Plantations merujuk pada data-data manajemen dan data produksi operasional bahan bakar di area boiler. Selanjutnya data produksi pengoperasian bahan bakar yang diawali dengan menentukan jumlah penggunaan bahan bakar TBS (ton)/ hari, total operasi boiler dan daya yang dikeluarkan selama pemakaian/bulan. Dari hasil pengolahan dan analisa, dilihat segi ekonomis penggunaan cangkang sawit lebih murah dibandingkan bahan bakar serabut sawit, dimana harga satuan yang diguna kan pada PLTU tersebut adalah Rp. 500,- per kg, akan tetapi pasokan bahan bakar serabut lebih banyak ketimbang bahan bakar cangkang sawit 70 % berbanding 30%. Dari segi efisiensinya cangkang sawit mempunyai tingkat keefisiensian bahan bakar kisaran 25 % - 34 % sedangkan serabut sawit 36 % - 50 % yang membuat serabut sawit lebih unggul dan pembakaran bahan bakarnya lebih maksimal dari pada cangkang sawit. Serta dalam menghasilkan 1 kW energi listrik penggunaan cangkang sawit 0,34 kg, sedangkan serabut sawit diperlukan 0,5 kg, sehingga dapat diketahui bahwa serabut sawit lebih efisien dibandingkan cangkang sawit.Kata kunci : Manajemen, Operasi, Boiler, Sawit, CangkangAbstract Boiler fuel operation management aims to manage fuel properly and regularly and to optimize fuel financing and efficient fuel handling at the stage of the boiler fuel production process. Boiler fuel operation management is carried out at PT. Bakrie Pasaman Plantations refers to management data and fuel operational production data in the boiler area. Furthermore, the production data for fuel operations begins with determining the amount of fuel usage (tonnes)/day, the total boiler operation and the power expended during usage/month. From the results of processing and analysis, from an economical point of view, the use of palm shells is cheaper than palm fiber fuel, where the unit price used for the PLTU is Rp. 500,- per kg, but the supply of fiber fuel is more than oil palm shell fuel 70% compared to 30%. In terms of efficiency, palm kernel shells have a fuel efficiency level of 25% - 34% while palm fiber is 36% - 50% which makes palm fiber superior and the fuel burning is more optimal than palm shells. And in producing 1 kW of electrical energy the use of palm shells is 0.34 kg, while palm fiber is required 0.5 kg, so it can be seen that palm fibers are more efficient than palm shells.Keywords : Management, Operation, Boiler, Fibers, Shells

STUDI PENGARUH BACK FLASHOVER PADA SALURAN TRANSMISI 150 kV PAYAKUMBUH - KOTO PANJANG Arfita Yuana Dewi; Yusreni Warmi; Peprizal Peprizal; Asnal Effendi
Ensiklopedia of Journal Vol 2, No 3 (2020): Vol 2 No 3 Edisi 2 April 2020
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Back flashover is one of the consequences of a direct lightning strike. Back flashover is caused by the higher grounding resistance value of the tower leg. Doing so can create an overvoltage and can cause damage to electrical equipment. One way to minimize overvoltage due to back flashover is to adjust the grounding resistance at the foot of the tower. Tower 10 has a grounding resistance value of the tower foot of 4.78 ohms, the total back flashover is 29.085544 times / year. Tower 50 has a grounding resistance value of the tower foot of 14 ohms and the number of back flashover disturbances is 85.0213544 times / year. In tower 10 the value of the grounding resistance of the tower feet is smaller than the value of the grounding resistance of the menra feet 50, so the total number of back flashovers on tower 50 is higher than tower 10. The greater the value of the grounding resistance of the tower feet, the higher the number of back flashovers. The average grounding resistance of the tower leg 1 - 249 Payakumbuh Koto Panjang has a value of 4.2847 ohm tower foot grounding resistance, the number of back flashover disturbances is 24.593635 times / year. The standard grounding resistance of the tower leg is 10 ohms, because tower 50 has a grounding pressure value exceeding the standard, which is 14 ohms, so that it can cause the number of back flashover disturbances to exceed the standard 13 times / 100 km / year.

ANALISA KINIERJA SISTEM SALURAN SISTEM TRANSMISI PADA PT. PLN (Persero) TRAGI PADANG Asnal Effendi; Arfita Yuana Dewi; Jos Mised Putra
Ensiklopedia of Journal Vol 3, No 2 (2021): Vol 3 No 2 Edisi 2 Januari 2021
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

The air transmission line is one of the most widely used electric power transmission processes. However, this air transmission line requires a large area as a medium of isolation and is prone to interference because it is located at an altitude, especially interference caused by lightning. Disruption to transmission line can result in obstruction of the supply of electrical energy. Interference with transmission lines has a variety of causes. One of causes of interference is equipment. The aim is to analyze the performance of the Transmission Line system in achieving the reliability of the 150kV based on the reliability index of transmission system at PT. PLN (Persero) Tragi Padang in 2017. From the calculation and analysis it is found that the realibility index of transmission system TLOD ( Transmission Line Outage Duration ) of 1,86 hours then it can be said still in the performance target set PLN 5,54 hours, while for TLOF ( Transmission Line Outage Frequensi ) of 0,84 times then it can be said still in the target performance set by PLN of 1,96 times. The disturbance that occurred during the year 2017 caused by the equipment as much as 2 times with the old out 4,4 hours and the unattached load of 57,5 kWH. To minimize the amount of disturbance that occurs it is expected that the electricity provider increases the maintenance schedule and increases the knowledge of the disruption caused by the equipment so that the unencumbered energy can be minimized.

An angle speed and thrust relationship of the rotor system in the quadcopter aircraft Al Al; Arfita Yuana Dewi; Antonov Bachtiar; Dwi Harinita
Indonesian Journal of Electrical Engineering and Computer Science Vol 13, No 2: February 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v13.i2.pp469-474

Utilizing Quadcopter were still many obstacles such as; plane easy to fall; the battery is not durable; vulnerable to weather conditions and others. The research and development has grown to improve aircraft facilities and capabilities. Many parameters related to aircraft lift capability factors; fly long; flying high; type of motor; the type of propeller: including the sensors and control systems used. This study was to find the relationship between changes in the BLDC motor voltage source to the rotor angle velocity (ω); rotor speed to rotor lift (Ft); wind speed to rotor lift; push the following rotor (Ct). Empirical testing was conducted in the laboratory to find the relationship of these parameters. The results data show that; the lift power generated with rotational speed was not proportional, non linearity occurs when the rotor was released from the self and starts pulling the strain gauge when the rotation speed reaches around 65 rps. Once the rotation speed of the rotor is able to reach up to 1.5 Newton lift then the thrust rising trend sharply increasing toincreasing of the rotor speed. A motor hade 1200 KV and blade with a radius of 0.12 m, then obtained thrust (Ct) of 1.732.

Co-Authors AA Sudharmawan, AA Abdul Rohim Agung Ricardo Gultom Agustian, Puja Al Al Andi Syofian Andi Syofian Anggun Anugrah Antonov Bachtiar Anugrah, Anggun Anungrah, Anggun Arfidian Rachman Arief Ramadhani Vermana Arynugraha Tri Saputra Asnal Efendi Asnal Effendi Asnal Effendi Asnal Effendi Asnal Effendi Asnal Effendi Bayu Hidayatullah Dawati, Gustinel Dedy Alfianto Dewan, Muhammad Dwi Harinita Edward Crismas Effendi, Asnal Egi Alfian Elfrida Ratnawati Elvira, Lusi Erhaneli Erhaneli, Erhaneli Erinaldo, Ananda Fahody M Syafar Fauzan Fauzan Febtria Gita Ferry Darmawan Firman Agung Frasha Kusuma Harry Setiawan Hendra Laferiza, Hendra Hidayatullah, Bayu Hilmi, Halisa Ibrahim, Maulana Malik Ilham Afandi Arista Irfianda, Haryosa Jos Mised Putra Kartiria Kartiria Kartiria kartiria kartiria4 kartiria4, kartiria Masta, Putra Fikrianda Mhd Zulfikar Erfani Mori Novriyanti Muha, Tun Sri Rajunul Muhammad Dewan Muhammad Fiqri Oktarianto Nesti, Lisa Peprizal, Peprizal Premadi, Azwir Putra, Andi M. Nur Putra, Jos Mised Rafika Andari Rahmadhania, Rahmadhania Rizal, Rahman Rizki, Muhammad Rizki Saputra, Yogi Sepannur Bandri Shafitri, Azzahra Sitti Amalia Sugeng, Santoso Tengku Riza Zarzani N Tun Sri Rajunul Muha Vikri Zulmi Wibowo, Tiur Lestari Yusreni Warmi Yusreni Warmi Yusreni Warmi Zukarnaini Zul Arizal Zulkarnaini Zulkarnaini Zuriman Anthony

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