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All Journal Electrician : Jurnal Rekayasa dan Teknologi Elektro
Fitriono
Universitas Muhammadiyah Lampung
Control & Systems Engineering Electrical & Electronics Engineering Engineering

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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
Studi Aplikasi Smart Switch RFID pada Kelistrikan Kantor dan Ruang Belajar Hamimi; Fitriono; Yudi Eka Putra
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.v17n2.2465

Abstract

Abstrak -Penelitian ini, RFID (Radio Frequency Identification) digunakan sebagai alat identifikasi personal pada sistem akses. sistem ini ditujukan untuk menjaga keamanan dan privasi ruangan dari pihak-pihak yang tidak memiliki otoritas untuk memasuki ruangan tersebut. Melalui perancangan dan implementasi sistem akses ruangan ini, jarak dan posisi optimal pembacaan RFID tag guna memberikan kenyamanan pada pengguna saat mengakses ruangan. Untuk mempermudah mobilitas, pengembangan penggunaan RFID sebagai pengganti kunci pintu, selain praktis penggunaan RFID juga lebih ekonomis dan dapat mengefisiensi energi yang digunakan, serta meminimalisir bahaya kebakaran yang diakibatkan hubungan pendek arus listrik yang sering terjadi di rumah dan perkantoran. alat kunci pintu dan saklar lampu RFID berbasis arduino uno adalah suatu alat yang dapat diarahkan untuk menghidupkan dan mematikan lampu serta peralatan elektronik lainnya saat membuka dan mengunci pintu. Dengan itu dibuatlah suatu sistem kontrol yang mampu di kendalikan menggunakan sensor Kata Kunci : kunci elektrik, RFID, sistem akses ruangan, sistem database, solenoid
Co-Authors Hamimi Yenni Afrida Yudi Eka Putra