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Oil and Paper Insulation for DC Converter Transformer

Oil and Paper Insulation for DC Converter Transformer

Boxue Du
Copyright: © 2021 |Pages: 29
ISBN13: 9781799885917|ISBN10: 1799885917|EISBN13: 9781799887362
DOI: 10.4018/978-1-7998-8591-7.ch024
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MLA

Du, Boxue. "Oil and Paper Insulation for DC Converter Transformer." Research Anthology on Synthesis, Characterization, and Applications of Nanomaterials, edited by Information Resources Management Association, IGI Global, 2021, pp. 537-565. https://doi.org/10.4018/978-1-7998-8591-7.ch024

APA

Du, B. (2021). Oil and Paper Insulation for DC Converter Transformer. In I. Management Association (Ed.), Research Anthology on Synthesis, Characterization, and Applications of Nanomaterials (pp. 537-565). IGI Global. https://doi.org/10.4018/978-1-7998-8591-7.ch024

Chicago

Du, Boxue. "Oil and Paper Insulation for DC Converter Transformer." In Research Anthology on Synthesis, Characterization, and Applications of Nanomaterials, edited by Information Resources Management Association, 537-565. Hershey, PA: IGI Global, 2021. https://doi.org/10.4018/978-1-7998-8591-7.ch024

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Abstract

Transformer oil and oil-impregnated paper, serve as the essential parts of converter transformer, suffering various electric fields. The accumulation of surface charge on the paper would lead to flashover. When the power flow of the HVDC system is reversed, the charge field will easily lead to discharge. Direct-fluorination is a method which could affect the material property without alternating the bulk property. Besides, a new type of nano-modified transformer oil is a method to improve properties. This chapter presents a study of the effect of fluorination on surface charge behavior, the effect of polarity reversal voltages on interface charge behavior and the effect of Boron nitride (BN) nanoparticles on the high thermal conductivity of transformer oil. Results show that fluorination had an influence on the chemical property of the paper and BN nanoparticles has improvements in heat transfer process. In the polarity reversal test, the dissipation rate becomes smaller as the reversal time gets longer.

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