1 Hz dissipation factor

descriptionPublicationkeyboard_double_arrow_right Article 09 May 2022 Croatia English Publisher:Merit Media Int. Ltd.Journal:Transformers Magazine, volume 9 (issn: 1849-3319,

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Authors: Rabalino, Diego; Oppedisano, Vince; Petrof, Kenneth;

1 Hz dissipation factor

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Abstract

The dielectric frequency response has evolved into a definitive analysis to determine the condition of the insulation system. The analysis of the NB DFR tests spectrum provides valuable pieces of information that can be used for the diagnostics of high voltage equipment. A case study has been conducted for a 10 MVA, 69/13.09 kV Dyn1 two-winding transformer that is tested in the field after OLTC repairs and before re-energization.

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Croatia

Keywords

case study, dielectric frequency response, dissipation factor, power factor

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