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All Journal Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) ELINVO (Electronics, Informatics, and Vocational Education) PROtek : Jurnal Ilmiah Teknik Elektro JMM (Jurnal Masyarakat Mandiri) Martabe : Jurnal Pengabdian Kepada Masyarakat Journal of Robotics and Control (JRC) PUBLIKASI PENELITIAN TERAPAN DAN KEBIJAKAN Jurnal Rekayasa Elektro Sriwijaya Aptekmas : Jurnal Pengabdian Kepada Masyarakat Formosa Journal of Sustainable Research (FJSR) Journal of Telecommunication Control and Intelligent System Electrician : Jurnal Rekayasa dan Teknologi Elektro
Wiwin A. Oktaviani
Jurusan Teknik Elektro Universitas Muhammadiyah Palembang, Palembang Jl. Jenderal Ahmad Yani 13 Ulu Seberang Ulu II, 13 Ulu, Kec. Plaju, Kota Palembang, Sumatera Selatan 30116
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Variasi Nilai Tegangan Percik Arrester Akibat Pengaruh Kapasitas Trafo Daya dan Jarak Arrester Wiwin A Oktaviani; Rahmat Septiaji; Barlian Taufik
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 16 No. 2 (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.v16n2.2235

Abstract

The ability of each substation to withstand lightning and overvoltage affects the power distribution of the power system. In order to make the best operation of the substations, it is necessary to install Arresters which are used to protect the transformers in each substation from overvoltage caused by lightning surges. In this study, the effect of capacity on the placement distance of the arrester is discussed with 30 MVA and 60 MVA transformers. The purpose of this study was to determine the effect of the power transformer capacity of the four substations on the value of the arrester spark voltage and to obtain the optimal arrester installation technique at each substation using the Lagrange optimization method. Lagrange optimization method is used to determine the optimal distance between the arrester and the power transformer. The calculation results show that in a transformer with a capacity of 60 MVA, the Arrester spark voltage occurs at t = 20 microseconds with a voltage drop of 390.49 kV. Meanwhile, in a transformer with a capacity of 30 MVA, the Arrester spark time is at t = 13.9 microseconds with a voltage drop of 266.3 kV. This shows the capacity of the transformer that affects the magnitude of the Arrester's spark voltage and the spark time. Thus, the smaller the transformer capacity, the smaller the arrester spark time with the large voltage drop
Automatic Transfer Switch (ATS) Berbasis Sensor Tegangan Baterai Untuk PLTS yosi apriani; Dipociala Dipociala; Zulkifli Saleh; Wiwin Oktaviani
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.v17n1.2420

Abstract

ATS (Automatic Transfer Switch) merupakan sistem untuk menghubungkan beban dengan dua sumber tenaga listrik (sumber utama dan cadangan) yang terpisah untuk menjaga ketersediaan aliran daya listrik menuju beban. Pembangkit Listrik Tenaga Surya (PLTS) saat ini sudah sangat sering digunakan di masyarakat. Dalam hal memprioritaskan sumber energi listrik dari PLTS dijadikan sumber listrik yang utama sangatlah baik, akan tetapi untuk menghasilkan energi listrik PLTS sangat bergantung kepada intensitas penyinaran matahari, oleh karenanya kita masih masih memerlukan suplai cadangan yakni dari PLN (Perusahaan Listrik Negara). Tujuan dari penelitian ini membangun sebuah sistem ATS untuk memaksimalkan sumber energi listrik yang bersumber dari PLTS dengan di-backup oleh PLN, alat ini berbasis sensor tegangan baterai untuk menentukan kapan saat beban dialihkan ke sumber dari PLTS atau PLN. Hasil percobaan didapatkan hasil data suplai listrik akan berpindah ke PLN saat tegangan baterai pada PLTS terdeteksi dibawah 11,1 VDC (baterai habis) dan akan kembali lagi suplai listrik dilayani oleh Inverter apabila tegangan baterai tertingginya tercapai (baterai penuh) mencapai 13 VDC. ATS ini juga bisa menjadi UPS (Uninterruptible Power Supply) yakni untuk memprioritaskan sumber dari listrik PLN dan di-backup oleh PLTS dengan memindahkan selector switchnya ke arah lampu indikator PLN.
Co-Authors Ade Arinia Rasyad Anisa Dwiyana Anish Pandey Apriani, Yosi Arrofi Maulana Asri Indah Lestari Azizul Muttaqin Barlian Taufik Devrie Kurniawan Dhiya Uddin Rijalusalam Dipociala Dipociala Dwisantiya Ganta Saputri Ibnu Sukri Indah Permata Hati Irfan Ahmad Israa Al_barazanchi Iswanto Suwarno M Agus Salim M. Aidil Dwiansyah Marami Ahmad Gazani Muhammad Hurairah Muhammad Hurairoh Muhammad Rama Bagaskara Nugraha Syarif Rahmat Septiaji Rahmat Wiranto Ramadisu Mafra, Ramadisu Sofian, Ian Mochamad Taufik Barlian Taufik Barlian Taufik Barlian Zukiffli Saleh Zulkifli Saleh