Article Per Year (5 Year)
p-Index From 2021 - 2026
4.129
P-Index
This Author published in this journals
All Journal Aisyah Journal of Informatics and Electrical Engineering Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Abdimas Ilmiah Citra Bakti (JAICB) Journal of Electrical Engineering and Computer (JEECOM) Jurnal Inovasi Penelitian dan Pengabdian Masyarakat Emerging Information Science and Technology Journal of Renewable Energy, Electrical, and Computer Engineering Electrician : Jurnal Rekayasa dan Teknologi Elektro Jurnal Teknologi dan Inovasi Industri
Afrida, Yenni
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Other

Published : 26 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 26 Documents
Search

 1   2   3 
PERANCANGAN DAN PEMANFAATAN SAKELAR ELEKTRONIK (ELECTRONIC SWITCH) Dwi Feriyanto Dwi; Ancolo; Yenni Afrida; Soleh Zainuri; Wahyu Ponco Aji
Aisyah Journal Of Informatics and Electrical Engineering Vol 3 No 1 (2021): Aisyah Journal Of Informatics and Electrical Engineering
Publisher : Aisyah Journal Of Informatics and Electrical Engineering (A.J.I.E.E)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30604/jti.v3i1.74

Abstract

The Switch is a tool that everyone knows its use in everyday life. Switch functions as a breaker and connector of an electrical or electronic equipment. Switches are divided into 2 types, namely: mechanical switches and electronic switches. Mechanical switches are made of metal / copper, while electronic switches are made of a semi-conducting material called transistors, which are coupled with other electronic components. The design methode consists of design block design, work system, and design trials. The results obtained are in the form of a prototype electronic circuit called an electronic switch which uses several electronic components such as: resistors, electrolytic capacitors, integrated circuits, diodes, transformers, and relays.
PERENCANAAN PEMBANGKIT LISTRIK TENAGA SURYA ON GRID Yenni Afrida; Jeckson; Dwi Feriyanto
Aisyah Journal Of Informatics and Electrical Engineering Vol 4 No 1 (2022): Aisyah Journal Of Informatics and Electrical Engineering
Publisher : Aisyah Journal Of Informatics and Electrical Engineering (A.J.I.E.E)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30604/jti.v4i1.107

Abstract

Makalah ini membahas tentang sistem PLTS yang terhubung dengan jaringan listrik PLN. Energi surya merupakan sumber energi besar dan tidak akan habis, tidak menimbulkan polusi, aman bagi lingkungan. Pemilihan sistem PLTS yang terhubung dengan jaringan listrik PLN dianggap cocok untuk penggunaan pada daerah yang sudah tersedia jaringan listrik (On Grid). Pada makalah ini perencanaan beban mengambil simulasi beban pada rumah tangga daya 900 VA non subsidi. Berdasarkan hasil perhitungan maka didapatkan nilai efisiensi sebesar 20% menggunakan sistem PLTS.
UPAYA PENINGKATAN MINAT BAHASA INGGRIS MENGGUNAKAN LAGU KEPADA MURID KINDERGARTEN ANUBANWANGMAI THAILAND Fadhilah Izni Zamzami; Setriani Setriani; Yenni Afrida; Sri Choiriyati; Ampol Resusoh
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 4 No. 2 (2023): Volume 4 Nomor 2 Tahun 2023
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v4i2.16258

Abstract

Lagu dihargai karena fitur linguistik, pedagogis, budaya, dan hiburannya dan memang demikian bahan pembelajaran bahasa yang berharga. Pada jurnal ini menggunakan metode bernyanyi serta memastikan efektivitas penggunaan lagu sebagai sarana untuk meningkatkan kosakata bahasa Inggris dan untuk menentukan apakah lagu memengaruhi motivasi belajar bahasa inggris. Yaitu dapat digunakan untuk mengajar dan mengembangkan setiap aspek dari suatu bahasa. Hasil penelitian menunjukkan bahwa lagu memiliki pengaruh positif terhadap kosa kata anak-anak TK. Apapun setting yang digunakan, aural atau aural/visual, hasilnya membuktikan lagu itu cocok untuk gaya belajar yang berbeda lagi menyenangkan, mendorong pengalaman belajar yang positif, dan meningkatkan pengetahuan. Lagu membantu motivasi dan membantu pelajar mengembangkan kecintaan pada pembelajaran bahasa. Siswa termotivasi dengan cara ini adalah imajinatif, kreatif, dan bersemangat untuk belajar dan berhasil.
Analisa Kondisi Minyak Trafo Berdasarkan Hasil Uji Dissolved Gas Analisys Pada Trafo Daya #1 Di PT.PLN (PERSERO) GARDU INDUK KOTABUMI Yenni Afrida; Fitriono
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 16 No. 3 (2022)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v16n3.2408

Abstract

Abstract Transformer oil is very important because it functions as a coolant and also as an insulator. In transformer oil there are dissolved gases that can cause failure of the transformer due to gas failure (fault gas). This research was conducted to determine the condition of transformer oil by analyzing the results of the Dissolved Gas Analysis (DGA) test. The DGA (Dissolved Gas Analysis) test is used to determine the type of failure in a transformer that has been operating for years. The DGA test is carried out by monitoring fault gases such as H2, CH4, CO, CO2, C2H4, C2H6, C2H2, O2, N2 and O2N2 which generally cannot be detected in testing the characteristics of transformer oil. Based on the test results using the Total Dissolve Gas Analysis (TDCG) method condition 1 with the amount of flammable gas 202.845 ppm with the interpretation that the transformer can operate normally. The test results using the Roger's Ratio method on the Power Transformer 1 GI Kotabumi obtained codes 0 0 0. From the combination of the 3 codes above, it shows that the transformer oil is in good condition. The results of the test using the Key Gas method on Power Transformer 1 GI Kotabumi obtained a CO value of 56 percent caused by overheating of cellulose or overheating of solid insulation in the transformer but that value is still far from the threshold Keywords Dissolved Gas Analysis (DGA),Transformer oil, Roger'r ratio method, KeyGas
Simulasi Perbaikan Tegangan menggunakan Aplikasi ETAP pada Mobile Substation 150/20 KV Sistem Kelistrikan PLN (Persero) Rayon Menggala Jeckson Son; Yenni Afrida; Ubaidah U; Ali Ahmad A
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 17 No. 1 (2023)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v17n1.2411

Abstract

Drop tegangan di wilayah Tulang Bawang dan Mesuji sudah mencapai level – 50 percents dari tegangan nominal. Sedangkan berdasarkan SPLN T6.001 tahun 2013 tentang Tegangan Tegangan Standar disebutkan bahwa tegangan tertinggi dan tegangan terendah perbedaannya tidak boleh lebih besar kurang lebih 10 percents dari tegangan nominal sistem. Drop tegangan terjadi karena panjang penghantar jaringan terlalu panjang dan beban feeder besar di ujung jaringan serta terlambatnya pembangunan gardu induk Mesuji. Perbaikan tegangan pada sistem kelistrikan di wilayah Tulang Bawang dan Mesuji disimulasikan menggunakan Aplikasi ETAP dengan memanfaatkan fungsi Load Flow Analisis sehingga diperoleh hasil aliran daya pada sistem kelistrikan tersebut. Simulasi dilakukan pada dua kondisi yaitu kondisi sebelum dan kondisi setelah Mobile Substation 150/20 kV beroperasi pada sistem kelistrikan Tulang Bawang dan Mesuji. Dari hasil simulasi dengan Aplikasi ETAP dapat diketahui perbaikan tegangan pada sistem kelistrikan Tulang Bawang dan Mesuji. Sehingga apabila hasil simulasi dianggap layak, maka pengoperasian Mobile Substation 150/20 kV dapat dilaksanakan
Studi Penentuan State Of Charge (SOC) pada Baterai Valve Regulated Lead Acid NP7-12 Menggunakan MATLAB Yenni Afrida; Jeckson J; Ubaidah U
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 17 No. 2 (2023)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v17n2.2481

Abstract

Abstract — To maintain battery performance, it is necessary to have a battery monitoring system that functions to determine several parameters in the battery, such as voltage, current, capacitance and battery capacity. The technology for knowing battery capacity is often known as state of charge (SOC). State of charge (SOC) is the ratio of the remaining energy to the maximum energy capacity of the battery. State of charge values ​​are often expressed in percentage form, 0 percent -100 percent. Estimating the value of the state of charge is quite important in battery monitoring technology. The lead acid battery testing process is carried out for 10 hours or 36000 seconds, both in the condition of discharging and charging the battery. In this study, the initial State of Charge (SOC) value for the battery is given, namely the upper limit and lower limit. The upper limit value for the initial State of Charge (SOC) is 100 percent, while the lower limit value is 20 percent. In the process of discharging the lead acid battery, it can be seen that the current value when discharging is stable at 1.2 Amperes. The charging current value is very constant, namely at 0.425 A. Meanwhile, the charging voltage value is also constant at 12.215 V. Keywords — State of Charge, Lead Acid, Coulomb Counting, Matlab.
Study On Implementation Of Watergate Control System From Manual To Automatic Based Arduino Nano ATmega328 Syafrudin, Ahmad; Jeckson, Jeckson; Afrida, Yenni
Emerging Information Science and Technology Vol 5, No 1 (2024): May
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/eist.v5i1.22424

Abstract

The system for processing river water into clean water by operating sluice gates which are controlled manually by operators often causes problems (human error), so a system must be created that is capable of controlling sluice gates automatically. The turbidity sensor detects water turbidity which is then accepted by the Arduino nano as the basis for controlling the water gate. In this research, data collection techniques were carried out using interviews with resource persons (operators), observation and literature study. After the automatic sluice control system based on the Arduino nano ATmega328 was implemented, the results obtained were: When the water conditions are muddy and murky, relay one is "on", relay two is "off" (the sluice gate is closed), while when the water conditions are normal and clear then the relay two "on" relays and one "off" relay (open floodgate). In this way, we no longer just have to rely on the operator to control the sluice gate, so that the water treatment process can be more optimal and efficient
Analisis Gangguan Earth Fault pada Penyulang Hujan Gardu Induk Teluk Betung Afrida, Yenni; Jeckson, Jeckson; A, Ancolo; Fajar Rhomadon
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 15 No. 3 (2021)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v15n3.2239

Abstract

Intisari Hubung singkat merupakan salah satu jenis gangguan yang sering terjadi pada suatu sistem tenaga listrik, baik itu hubung singkat antara kawat fasa ketanah maupun hubung singkat antara kawat yang berbeda fasanya. Gangguan hubung singkat dapat berakibat fatal pada sistem tenaga listrik, jika tidak memperhatikan sistem pengaman. Gangguan tanah terjadi karena adanya tegangan induksi kumparan-kumparan transformator terhadap struktur logam disekitarnya. Bila didiamkan tanpa pengaman listrik, akan menimbulkan kebakaran. Untuk itu diperlukan pengaman listrik yang tepat sesuai dengan beban atau jaringan listrik yang diamankan. Penelitian ini membahas tentang arus hubung singkat satu fasa ketanah pada titik gangguan 10 persen sampai dengan 100 persen panjang saluran. Metode yang digunakan adalah dengan menghitung inpedansi sumber, impedansi tranformator 150 kV, Impedansi ekivalen, dan gangguan hubung singkat 1 fasa ke tanah. Hasil perhitungan arus gangguan menjadi salah satu faktor pertimbangan dalam menentukan nilai proteksi. Berdasarkan hasil penelitian didapatkan bahwa semakin jauh atau panjang kawat penampang pada panjang penyulang maka arusnya semakin berkurang/kecil atau semakin dekat maka arus gangguan semakin besar. Kata kunci Hubung singkat 1 fasa ketanah, Penyulang, Gardu Induk, Impedansi, Transformator. Abstract — Short circuit is one type of disturbance that often occurs in an electrical power system, whether it is a short circuit between a ground wire or a short circuit between wires of different phases. Short circuit failure can have fatal consequences to the electric power system, if not paying attention to the safety system. Ground disturbance occurs due to the voltage induced by the transformers on the surrounding metal structures. If left without electric safety, it will cause a electrical fire. For this reason, it requires proper electrical safety according to the load or electrical network being secured. This research discusses the single phase ground short circuit current at the fault point of 10 persen to 100 persen of the channel length. The method is used to calculate the source inpedance, 150 kV transformer impedance, equivalent impedance, and 1 phase short circuit to ground. The result of the calculation of the noise current is one of the factors of consideration in determining the value of protection. Based on the research results, it was found that the farther or longer the cross-sectional wire at the length of the feeder, the lesses current then you have or the closer the current, the greater the fault current. Keywords Short circuit, feeder, substation, impedance, transformer.
Pengaruh Panjang Jaringan Terhadap Drop Tegangan Pada Penyulang Duku dan Kurma PT. PLN (Persero) ULP Rumbia Afrida, Yenni; Jeckson
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 18 No. 1 (2024)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v18n1.2606

Abstract

Voltage drops in distribution systems can occur in medium voltage networks (JTM), distribution transformers, low voltage networks (JTR) and house lines. Voltage drops in the network cause suboptimal distribution and increase power losses. PT. PLN (Persero) ULP Rumbia has two feeders with pure radial network characteristics sourced from the Seputih Banyak Main Substation. The length of the Duku Feeder network has a voltage of 96.8 KMS with a load of 150 A while the length of the Kurma Feeder network is 207.21 kV with a load of 155 A. The network reconfiguration of the Dente Teladas Substation was carried out to shorten the network length. This research aims to calculate the voltage drop that occurs at the Duku and Kurma feeders before and after network configuration. This research uses the quantity method to compare the calculation results with the voltage drop standards set by PT. PLN (Persero). After reconfiguring the Duku and Kurma feeders, there was an increase in tip voltage which indicated improvement. From the calculation results before adding the network to the Duku feeder, the voltage at the receiving end was 19.5 kV with a voltage drop of 7.1%, and at the Kurma feeder the voltage at the end of the line was 17 kV with a voltage drop of 19%. This is clearly no longer in accordance with the local TMP, and requires further study to overcome this problem. The voltage on the two feeders goes through a step up process using a Medium Voltage OLTC (On Load Tap Changer) so that the voltage on each feeder becomes between 19.86 kV to 20.16 kV.
Analisis Setting Over Current Relay Satu Fasa Ke Tanah Sistem 20 Kv Pada Recloser B 21 Penyulang Salju Gardu Induk Teluk Betung Berbasis Etap Son, Jeckson; Yenni Afrida; Sri Suryani
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 18 No. 2 (2024)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v18n2.2683

Abstract

Gangguan jaringan sistem 20 kV selalu berpotensi terjadi dan penyebab yang paling sering menyebabkan gangguan adalah gangguan hubung singkat 3 fasa, 2 fasa, 2 fasa ke tanah dan 1 fasa ketanah. Dalam mengamankan jaringan dari gangguan-gangguan tersebut maka dibutuhkan peralatan proteksi pada jaringan sistem 20 kV yang sensitif, selektif, cepat, andal dan sederhana. Relai yang paling sering bekerja pada recloser B 21 adalah Over Current Relay (OCR) satu fasa ke tanah. Perhitungan dan Analisa waktu kerja OCR satu fasa ke tanah pada recloser B 21 penyulang Salju dilakukan pada outgoing dan incoming serta waktu kerja recloser. Setelah data-data tersebut didapatkan, dilanjutkan dengan menganalisa koordinasi setting OCR satu fasa ketanah antara recloser B 21 dengan outgoing penyulang Salju mengguankan software Etap. Teknik pengambilan data dilakukan dengan metode studi pustaka, literatur, wawancara, dan pemodelan sistem. Hasil perhitungan arus gangguan hubung singkat satu fasa tanah pada 1% jaringan atau 1.88 km sebesar 288.396 A, sedangkan arus gangguan hubung singkat satu fasa ke tanah yang mempunyai nilai minimum terletak pada 100% jaringan atau 18.8 km sebesar 202.65 A. Hasil perhitungan pada OCR satu fasa ke tanah incoming tms = 0.26, t = 0.7 detik, outgoing tms = 0.1, t = 0.3 detik dan recloser tms = 0.062, t = 0.2 detik dan setting eksisting dari PLN adalah incoming tms = 0.37, t = 1 detik, outgoing tms = 0.047, t = 0.15 detik dan recloser tms = 0.03, t = 0.09 detik. Dari hasil pengamatan data yang diperoleh, direkomendasikan untuk mempertimbangkan resetting pada recloser B 21, outgoing penyulang Salju dan incoming agar menaikkan setting relai sehingga ketika merasakan arus pick up relai tidak langsung trip.
Co-Authors A, Ali Ahmad A, Ancolo Agus Faisal Asyha Ali Ahmad A Ampol Resusoh Ancolo Asniar, Immawati Dasweptia D Dewi A Irayani Dewi A. Iryani Diah Permata Dwi Feriyanto Fadhilah Izni Zamzami Fajar Rhomadon Fatahilal Rasyid Agusta Fitriono Fitriono fitriono fitriono, Fitriono Hamimi Hamimi Herman H Sinaga Jeckson, Jeckson Maretha, Carla Mutiara Sari Nining Purwasih Oktavia Eka Rahayu Ronald A Sitorus Saputeri, Noorikha Pandayahesti Setriani Setriani Soleh Zainuri Sri Choiriyati Sri Suryani Sri Suryani Prasetyowati Syafrudin, Ahmad u, ubaidah ubaidah ubaidah Wahyu Ponco Aji Warsiyah Warsiyah Warsiyah, Warsiyah Yudi Eka Putra