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Effects of the Insulation Quality on the Frequency Response of Power Transformers
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 Title & Authors
Effects of the Insulation Quality on the Frequency Response of Power Transformers
Abeywickrama Nilanga; Ekanayake Chandima; Serdyuk Yuriy V.; Gubanski Stanislaw M.;
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 Abstract
This paper presents results of frequency domain spectroscopy (FDS) measurements on oil-impregnated pressboard insulation, their analyses and use of the data for modeling high frequency response (FRA) of transformers. The dielectric responses were measured in a broad frequency range, i.e. from 0.1 mHz to 1 MHz, on model samples containing different amount of moisture. The responses were parameterized with terms representing dc conductivity, low frequency dispersion and Cole-Cole polarization mechanisms and they were thereafter used to model the FRA response of a three-phase transformer.
 Keywords
Frequency domain spectroscopy;Frequency response analysis;Insulation modeling;Moisture content;Transformer insulation;
 Language
English
 Cited by
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A Study on the Thermal and Chemical Properties of Carbon Nanotube Reinforced Nanocomposite in Power Cables,;;;;;;

Transactions on Electrical and Electronic Materials, 2009. vol.10. 6, pp.217-221 crossref(new window)
1.
Examining the ageing of transformer insulation using FRA and FDS techniques, IEEE Transactions on Dielectrics and Electrical Insulation, 2015, 22, 2, 1258  crossref(new windwow)
2.
Influence of temperature and moisture content on frequency response analysis of transformer winding, IEEE Transactions on Dielectrics and Electrical Insulation, 2014, 21, 3, 1393  crossref(new windwow)
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