Details
| Original language | English |
|---|---|
| Title of host publication | 2018 IEEE CEIDP Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2018 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 438-441 |
| Number of pages | 4 |
| ISBN (electronic) | 9781538661925 |
| Publication status | Published - 26 Nov 2018 |
| Event | 2018 IEEE CEIDP Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2018 - Cancun, Mexico Duration: 21 Oct 2018 → 24 Oct 2018 |
Publication series
| Name | Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP |
|---|---|
| Volume | 2018-October |
| ISSN (Print) | 0084-9162 |
Abstract
As the paper insulation in oil-filled power transformers is not easily accessible, a lot of attempts have been paid to indirectly estimate condition of the paper insulation through measurement of the diffused chemicals in the oil as aging indicators. Accordingly, this study investigates the reliability of furan compounds for estimating the condition of a cellulose insulation in power transformers. To model the thermal stress in a transformer, paper insulation impregnated with different dielectric liquids were subjected to an accelerated thermal aging with catalyzer inclusions. Sampling was conducted at predefined intervals; thereupon, the concentration of furan compounds was measured using a high performance liquid chromatography (HPLC) combined with a mass spectrometer (MS). Moreover, the impact of transformer construction regarding hermetically-sealed and free-breathing preservation system on concentration of furan derivate was studied. The amount of furan in the insulating oil increases generally over the aging time; however, for different insulating oils, different behaviors were distinguished. Furthermore, the impact of the system construction on the concentration of furan is presented and it is shown that a sealed construction has a considerably higher concentration of furan in comparison to that of an open system. This paper gives a deeper insight into the correlation between the furan compounds and aging condition of the cellulose insulation. The results also turn out that the type of the insulating fluid as well as the paper arrangement has a substantial impact on the amount of the dissolved furans in the fluid.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Engineering(all)
- Electrical and Electronic Engineering
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2018 IEEE CEIDP Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2018. Institute of Electrical and Electronics Engineers Inc., 2018. p. 438-441 8544859 (Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP; Vol. 2018-October).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - How Far are Furan Compounds Reliable Indicators for Thermal Aging of Oil Impregnated Cellulose Insulation?
AU - Imani, M. T.
AU - Homeier, K.
AU - Werle, P.
AU - Drager, G.
N1 - Publisher Copyright: © 2018 IEEE. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2018/11/26
Y1 - 2018/11/26
N2 - As the paper insulation in oil-filled power transformers is not easily accessible, a lot of attempts have been paid to indirectly estimate condition of the paper insulation through measurement of the diffused chemicals in the oil as aging indicators. Accordingly, this study investigates the reliability of furan compounds for estimating the condition of a cellulose insulation in power transformers. To model the thermal stress in a transformer, paper insulation impregnated with different dielectric liquids were subjected to an accelerated thermal aging with catalyzer inclusions. Sampling was conducted at predefined intervals; thereupon, the concentration of furan compounds was measured using a high performance liquid chromatography (HPLC) combined with a mass spectrometer (MS). Moreover, the impact of transformer construction regarding hermetically-sealed and free-breathing preservation system on concentration of furan derivate was studied. The amount of furan in the insulating oil increases generally over the aging time; however, for different insulating oils, different behaviors were distinguished. Furthermore, the impact of the system construction on the concentration of furan is presented and it is shown that a sealed construction has a considerably higher concentration of furan in comparison to that of an open system. This paper gives a deeper insight into the correlation between the furan compounds and aging condition of the cellulose insulation. The results also turn out that the type of the insulating fluid as well as the paper arrangement has a substantial impact on the amount of the dissolved furans in the fluid.
AB - As the paper insulation in oil-filled power transformers is not easily accessible, a lot of attempts have been paid to indirectly estimate condition of the paper insulation through measurement of the diffused chemicals in the oil as aging indicators. Accordingly, this study investigates the reliability of furan compounds for estimating the condition of a cellulose insulation in power transformers. To model the thermal stress in a transformer, paper insulation impregnated with different dielectric liquids were subjected to an accelerated thermal aging with catalyzer inclusions. Sampling was conducted at predefined intervals; thereupon, the concentration of furan compounds was measured using a high performance liquid chromatography (HPLC) combined with a mass spectrometer (MS). Moreover, the impact of transformer construction regarding hermetically-sealed and free-breathing preservation system on concentration of furan derivate was studied. The amount of furan in the insulating oil increases generally over the aging time; however, for different insulating oils, different behaviors were distinguished. Furthermore, the impact of the system construction on the concentration of furan is presented and it is shown that a sealed construction has a considerably higher concentration of furan in comparison to that of an open system. This paper gives a deeper insight into the correlation between the furan compounds and aging condition of the cellulose insulation. The results also turn out that the type of the insulating fluid as well as the paper arrangement has a substantial impact on the amount of the dissolved furans in the fluid.
UR - http://www.scopus.com/inward/record.url?scp=85059768136&partnerID=8YFLogxK
U2 - 10.1109/ceidp.2018.8544859
DO - 10.1109/ceidp.2018.8544859
M3 - Conference contribution
AN - SCOPUS:85059768136
T3 - Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
SP - 438
EP - 441
BT - 2018 IEEE CEIDP Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 IEEE CEIDP Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2018
Y2 - 21 October 2018 through 24 October 2018
ER -