Details
| Original language | English |
|---|---|
| Pages (from-to) | 346-349 |
| Number of pages | 4 |
| Journal | Conference Record of IEEE International Symposium on Electrical Insulation |
| Publication status | Published - 2002 |
| Event | 2002 IEEE International Symposium on Electrical Insulation - Boston, MA, United States Duration: 7 Apr 2002 → 10 Apr 2002 |
Abstract
Although solid and gaseous insulations have become increasingly important during the last decades the application of insulating liquids together with cellulosic paper is still essential for many kinds of components like power transformers. A dominant risk, reducing the strength of such insulations, is water, thus sometimes drying procedures are required to extend lifetime and operation reliability. Actually transformer drying is in most cases performed as a maintenance action where it is tried to remove water by vacuum and beat. Such a procedure has to be performed offline and also comprises the risk of insulation endangerment. In this contribution some basic investigations on the reasons for the observed tendency for failures after a conventional drying of the solid insulation of an aged transformer are presented. Therefore the composition of an impregnated cellulosic insulation paper has been recorded during impregnation, accelerated aging and a drying as it is performed for a non-impregnated insulation.
ASJC Scopus subject areas
- Engineering(all)
- Electrical and Electronic Engineering
- Engineering(all)
- Building and Construction
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In: Conference Record of IEEE International Symposium on Electrical Insulation, 2002, p. 346-349.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Effects of different drying procedures on the composition of a liquid impregnated solid insulation
AU - Wasserberg, V.
AU - Borsi, Hossein
AU - Gockenbach, Ernst
N1 - Copyright: Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.
PY - 2002
Y1 - 2002
N2 - Although solid and gaseous insulations have become increasingly important during the last decades the application of insulating liquids together with cellulosic paper is still essential for many kinds of components like power transformers. A dominant risk, reducing the strength of such insulations, is water, thus sometimes drying procedures are required to extend lifetime and operation reliability. Actually transformer drying is in most cases performed as a maintenance action where it is tried to remove water by vacuum and beat. Such a procedure has to be performed offline and also comprises the risk of insulation endangerment. In this contribution some basic investigations on the reasons for the observed tendency for failures after a conventional drying of the solid insulation of an aged transformer are presented. Therefore the composition of an impregnated cellulosic insulation paper has been recorded during impregnation, accelerated aging and a drying as it is performed for a non-impregnated insulation.
AB - Although solid and gaseous insulations have become increasingly important during the last decades the application of insulating liquids together with cellulosic paper is still essential for many kinds of components like power transformers. A dominant risk, reducing the strength of such insulations, is water, thus sometimes drying procedures are required to extend lifetime and operation reliability. Actually transformer drying is in most cases performed as a maintenance action where it is tried to remove water by vacuum and beat. Such a procedure has to be performed offline and also comprises the risk of insulation endangerment. In this contribution some basic investigations on the reasons for the observed tendency for failures after a conventional drying of the solid insulation of an aged transformer are presented. Therefore the composition of an impregnated cellulosic insulation paper has been recorded during impregnation, accelerated aging and a drying as it is performed for a non-impregnated insulation.
UR - http://www.scopus.com/inward/record.url?scp=0036075460&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:0036075460
SP - 346
EP - 349
JO - Conference Record of IEEE International Symposium on Electrical Insulation
JF - Conference Record of IEEE International Symposium on Electrical Insulation
SN - 0164-2006
T2 - 2002 IEEE International Symposium on Electrical Insulation
Y2 - 7 April 2002 through 10 April 2002
ER -