Pengaruh Stray Capacitance pada Model Coupling Capacitor Voltage Transformer terhadap Penentuan Lokasi Gangguan Saluran Transmisi 150 kV Menggunakan Metode Transformasi Wavelet Diskrit
DOI:
https://doi.org/10.37859/jst.v13i1.11648
Abstract
Long transmission systems in open areas frequently face challenges in detecting fault locations quickly and accurately. The primary factor behind this inaccuracy stems from the imprecision of the voltage sensor model used. Therefore, this study analyzes the Capacitor Coupling Voltage Transformer (CCVT) model by integrating the effects of stray capacitance. A case study was conducted on the transmission line from the Maninjau Hydroelectric Power Plant (PLTA) to the Pauh Limo Substation (GI). Utilizing the single-ended method assisted by Daubechies 4 wavelet, the simulation results indicate that the CCVT model accounting for stray capacitance yields a lower error rate, resulting in higher accuracy compared to the conventional CCVT model without stray capacitance. Furthermore, the use of a 1 MHz sampling frequency provides higher fault location accuracy than sampling frequencies of 10 kHz and 500 kHz.
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Copyright (c) 2026 Tesya Uldira Septiyeni, Novizon Novizon, Fanni Sonia, Rusvaira Qatrunnada, Mardini Hasanah
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