Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | Proceedings of the 21st International Symposium on High Voltage Engineering |
| Untertitel | Volume 1 |
| Herausgeber/-innen | Bálint Németh |
| Herausgeber (Verlag) | Springer Nature |
| Seiten | 958-968 |
| Seitenumfang | 11 |
| ISBN (Print) | 9783030316754 |
| Publikationsstatus | Veröffentlicht - 2020 |
| Veranstaltung | 21st International Symposium on High Voltage Engineering, ISH 2019 - Budapest, Ungarn Dauer: 26 Aug. 2019 → 30 Aug. 2019 |
Publikationsreihe
| Name | Lecture Notes in Electrical Engineering |
|---|---|
| Band | 598 LNEE |
| ISSN (Print) | 1876-1100 |
| ISSN (elektronisch) | 1876-1119 |
Abstract
This contribution investigates the suitability of short-chain alcohols for estimating the condition of a cellulose insulation in power transformers. To model an accelerated thermal aging of a transformer, strips of insulation paper impregnated with different insulation liquids were kept in a glass vessel, filled with the dielectric liquid and catalyzer inclusions, in a heating chamber. After oil sampling at predefined intervals, the concentrations of furanic compounds, the degree of polymerization (DP) value and the concentrations of methanol and ethanol in the insulation liquid were measured. Three different types of insulation liquids were utilized, such as the well-known uninhibited and inhibited mineral oil as well as a new inhibited insulation liquid with different oil components, inhibitor content and manufacturing process. These insulation liquids were investigated to obtain their various aging behavior regarding the generation of 2FAL and short-chain alcohols by thermal accelerated stress.
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Wirtschaftsingenieurwesen und Fertigungstechnik
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Proceedings of the 21st International Symposium on High Voltage Engineering : Volume 1. Hrsg. / Bálint Németh. Springer Nature, 2020. S. 958-968 (Lecture Notes in Electrical Engineering; Band 598 LNEE).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Influence on Formation of Methanol and Ethanol in Oil-Filled Transformers Under Accelerated Thermal Aging
AU - Homeier, K.
AU - Imani, M.
AU - Münster, T.
AU - Kinkeldey, T.
AU - Werle, P.
AU - Philipp, D.
N1 - Funding information: The authors would like to express their gratitude towards Weidmann Electrical Technology AG and GRID INSPECT GmbH for their support of this research.
PY - 2020
Y1 - 2020
N2 - This contribution investigates the suitability of short-chain alcohols for estimating the condition of a cellulose insulation in power transformers. To model an accelerated thermal aging of a transformer, strips of insulation paper impregnated with different insulation liquids were kept in a glass vessel, filled with the dielectric liquid and catalyzer inclusions, in a heating chamber. After oil sampling at predefined intervals, the concentrations of furanic compounds, the degree of polymerization (DP) value and the concentrations of methanol and ethanol in the insulation liquid were measured. Three different types of insulation liquids were utilized, such as the well-known uninhibited and inhibited mineral oil as well as a new inhibited insulation liquid with different oil components, inhibitor content and manufacturing process. These insulation liquids were investigated to obtain their various aging behavior regarding the generation of 2FAL and short-chain alcohols by thermal accelerated stress.
AB - This contribution investigates the suitability of short-chain alcohols for estimating the condition of a cellulose insulation in power transformers. To model an accelerated thermal aging of a transformer, strips of insulation paper impregnated with different insulation liquids were kept in a glass vessel, filled with the dielectric liquid and catalyzer inclusions, in a heating chamber. After oil sampling at predefined intervals, the concentrations of furanic compounds, the degree of polymerization (DP) value and the concentrations of methanol and ethanol in the insulation liquid were measured. Three different types of insulation liquids were utilized, such as the well-known uninhibited and inhibited mineral oil as well as a new inhibited insulation liquid with different oil components, inhibitor content and manufacturing process. These insulation liquids were investigated to obtain their various aging behavior regarding the generation of 2FAL and short-chain alcohols by thermal accelerated stress.
KW - Cellulose deterioration
KW - DP value
KW - Ethanol
KW - Methanol
KW - Thermal aging
UR - http://www.scopus.com/inward/record.url?scp=85076828675&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-31676-1_90
DO - 10.1007/978-3-030-31676-1_90
M3 - Conference contribution
AN - SCOPUS:85076828675
SN - 9783030316754
T3 - Lecture Notes in Electrical Engineering
SP - 958
EP - 968
BT - Proceedings of the 21st International Symposium on High Voltage Engineering
A2 - Németh, Bálint
PB - Springer Nature
T2 - 21st International Symposium on High Voltage Engineering, ISH 2019
Y2 - 26 August 2019 through 30 August 2019
ER -