Effects of moisture and temperature on the fequency domain spectroscopy analysis of power transformer insulation

Yew, J. H., Pradhan, M.K. and Saha, T. K. (2008). Effects of moisture and temperature on the fequency domain spectroscopy analysis of power transformer insulation. In: Kalyan Sen, 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century. 2008 IEEE Power Energy Society General Meeting - Conversion and Delivery of Electrical Energy in 21st Century, Pittsburgh, United States, (1-8). 20-24 July 2008. doi:10.1109/PES.2008.4596244


Author Yew, J. H.
Pradhan, M.K.
Saha, T. K.
Title of paper Effects of moisture and temperature on the fequency domain spectroscopy analysis of power transformer insulation
Conference name 2008 IEEE Power Energy Society General Meeting - Conversion and Delivery of Electrical Energy in 21st Century
Conference location Pittsburgh, United States
Conference dates 20-24 July 2008
Convener Dave Vaglia
Proceedings title 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century
Journal name 2008 Ieee Power
Place of Publication Piscataway, NJ, United States
Publisher IEEE
Publication Year 2008
Year available 2008
Sub-type Fully published paper
DOI 10.1109/PES.2008.4596244
Open Access Status
ISBN 9781424419067
9781424419050
ISSN 1932-5517
Editor Kalyan Sen
Start page 1
End page 8
Total pages 8
Language eng
Abstract/Summary Dielectric testing techniques such as frequency domain spectroscopy (FDS) is currently being widely used by the power utilities for the assessment of the condition of transformer oil-paper insulation (OIP) systems. However, it has been observed that the results of these tests are highly influenced by the operating temperature as well as the ingression of moisture into the paper insulation. The distribution, migration and equilibrium of moisture between oil and paper in transformer insulation system are also highly temperature dependent. It requires adequate experience and proper understanding to interpret the dielectric response results due to involvement of these factors. Proper analysis of the dielectric test result is only possible with a thorough understanding of the physical behaviour of the insulation system in response to temperature and moisture. To this end a series controlled laboratory experiments have been performed on a model transformer to study the effects of moisture and temperature on the FDS results. Later on, a possible analytical approach has been discussed to deal with situation in the field.
Subjects 0906 Electrical and Electronic Engineering
850603 Energy Systems Analysis
E1
Keyword Power transformer
Ageing
Condition monitoring
Frequency domain spectroscopy
Moisture content
Oil-paper insulation
Temperature
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article number 4596244

 
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Created: Sun, 05 Apr 2009, 20:58:52 EST by Donna Clark on behalf of School of Information Technol and Elec Engineering