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All Journal Indonesian Journal of Electrical Engineering and Computer Science Jurnal Teknik Elektro (JTE)
Farradita Nugraha
Universitas Siliwangi
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering

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Characteristics dipole antenna for partial discharge in gas insulated switchgear Rian Nurdiansyah; Farradita Nugraha; Nadya Glaudira; Linda Faridah
Indonesian Journal of Electrical Engineering and Computer Science Vol 42, No 1: April 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v42.i1.pp13-22

Abstract

The insulation condition of high-voltage equipment can be determined by measuring partial discharge (PD), which is an important indicator in insulation degradation. One of the PD detection methods that can be used is to use antennas as sensors in detecting electromagnetic waves generated from PD activities, especially in gas insulated switchgear (GIS) systems. This study focuses on designing and testing dipole antennas in the ultra-high frequency (UHF) frequency range of 300 Mhz-3 GHz to detect PD signals in GIS. Previous studies on dipole antennas with dimensions of 66×15 mm have reported a bandwidth of 336 MHz and a return loss of -22.4 dB at 1.3 GHz. The antenna was fabricated using an FR4-epoxy substrate with a thickness of 1.6 mm, a substrate radius of 102 mm, and a gap distance of 2 mm. Optimization of the antenna length and width significantly improved performance characteristics. Simulation results show that a dipole antenna with dimensions of 35×40 mm antenna produced a wider bandwidth of 989 MHz with a return loss of −28.47 dB at 1.4 GHz. Experimental validation using vector network analyzer (VNA) and PD testing on GIS confirmed that the optimized dipole antenna effectively detected PD activity at a voltage level of 16 kV.
ANALISIS KINERJA PENGGERAK WESEL BSG 9 DI STASIUN BOJONG Egman Luqmanul Hakim; Farradita Nugraha; Wildan Anshori
JURNAL TEKNIK ELEKTRO Vol. 15 No. 2 (2026): MEI 2026
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jte.v15n2.p84-90

Abstract

Keandalan sistem persinyalan perkeretaapian, khususnya pada perangkat wesel, merupakan faktor krusial dalam menjamin keselamatan dan efisiensi operasional kereta api. Penelitian ini bertujuan memvalidasi kinerja Perangkat Penggerak Wesel Tipe BSG 9 di Stasiun Bojong agar tetap sesuai dengan Standar Operasional Prosedur PT. Kereta Api Indonesia (Persero). Penelitian menggunakan metode observasi data yang dilaksanakan melalui kegiatan pemeliharaan rutin di lapangan, dengan pengumpulan data primer dilakukan secara berkala setiap dua minggu sekali, dimulai dari tanggal 17 Juni 2025 sampai 16 Juli 2025. Data yang diobservasi mencakup enam parameter kunci, baik mekanis (lebar jalur, jarak lidah wesel, test ganjalan) maupun kelistrikan (tegangan daya, tegangan deteksi, dan arus motor). Hasil pengukuran menunjukkan bahwa seluruh parameter, yang divisualisasikan melalui enam grafik terpisah, berada dalam batas toleransi yang diizinkan. Fluktuasi nilai yang terjadi sangat minimal dan sepenuhnya berada di dalam rentang toleransi standar. Dengan demikian, pelaksanaan pemeliharaan rutin terbukti efektif dalam memvalidasi kestabilan kinerja operasional penggerak wesel BSG 9, sehingga menjamin keandalan dan keselamatan perjalanan kereta api.
Co-Authors Egman Luqmanul Hakim Faridah, Linda Nadya Glaudira Rian Nurdiansyah Wildan Anshori