2016
DOI: 10.18180/tecciencia.2016.21.10
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Measurement of Complex Dielectric Permittivity in Oils from High-Voltage Transformes Using a Coaxial Probe

Abstract: This work presents the results obtained in the measurement of complex dielectric permittivity of some samples of oil from high voltage transformers within a frequency range comprised between 100 MHz and 3 GHz. Three types of oil samples were considered: new, used and those used samples that have undergone a filtering process for their recovery and new use. The measurements were performed by using a low-cost probe adapted from an open-ended SMA coaxial connector. The values obtained in a vector network analyzer… Show more

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