Influence of moisture and ageing on dielectric response of ester and mineral oil impregnated pressboard insulation

Bandara, Kapila, Saha, Tapan K. and Ekanayake, Chandima (2015). Influence of moisture and ageing on dielectric response of ester and mineral oil impregnated pressboard insulation. In: 2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC). IEEE Asia-Pacific Power and Enegy Engineering, Brisbane, QLD, Australia, (). 15-18 November 2015. doi:10.1109/APPEEC.2015.7380981


Author Bandara, Kapila
Saha, Tapan K.
Ekanayake, Chandima
Title of paper Influence of moisture and ageing on dielectric response of ester and mineral oil impregnated pressboard insulation
Conference name IEEE Asia-Pacific Power and Enegy Engineering
Conference location Brisbane, QLD, Australia
Conference dates 15-18 November 2015
Convener IEEE
Proceedings title 2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)
Journal name Asia-Pacific Power and Energy Engineering Conference, APPEEC
Place of Publication Piscataway, NJ, United States
Publisher IEEE
Publication Year 2015
Sub-type Fully published paper
DOI 10.1109/APPEEC.2015.7380981
Open Access Status Not Open Access
ISBN 9781467381321
ISSN 2157-4847
Volume 2016-January
Total pages 5
Collection year 2016
Language eng
Formatted Abstract/Summary
Frequency Domain Spectroscopy (FDS) technique has been widely used as a reliable tool to assess the condition of transformer insulation. It has been identified that FDS is largely influenced by ageing condition of insulation system including moisture in solid insulation. Therefore, adequate understanding on the influence of these factors on FDS is necessary to accurately interpret the condition of insulation system. This issue well understood for mineral oil-paper insulation system. However, there are limited number of studies performed to investigate the impact of ageing and moisture on FDS of natural ester (NE)-paper insulation system. To fill the gap, this study measures the FDS of transformer grade pressboard insulation samples aged in a mineral oil and two different commercially available NE based insulating liquids at different ageing and moisture conditions. Results of this comparative study reflect that influence of moisture and ageing on FDS of NE impregnated papers insulation is completely different in quantitatively to that of mineral oil impregnated paper insulation.
Keyword Ageing
Frequency domain spectroscopy
Mineral Oil
Natural ester (NE)
Polarization
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

 
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Created: Mon, 29 Feb 2016, 11:44:46 EST by Kapila Senarath Bandara Kahawaththa Mudiyanselage on behalf of School of Information Technol and Elec Engineering