Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | 14th International Conference on the Properties and Applications of Dielectric Materials |
| Untertitel | ICPADM 2024 |
| Herausgeber (Verlag) | Institute of Electrical and Electronics Engineers Inc. |
| Seiten | 299-303 |
| Seitenumfang | 5 |
| ISBN (elektronisch) | 9798350374605 |
| ISBN (Print) | 979-8-3503-8616-5 |
| Publikationsstatus | Veröffentlicht - 4 Aug. 2024 |
| Veranstaltung | 14th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2024 - Phuket, Thailand Dauer: 4 Aug. 2024 → 7 Aug. 2024 |
Abstract
Knowledge of the gas solubility of the various gases in the different insulation liquids currently on the market and in power transformers, whether hermetically sealed or free-breathing, can provide indication on the gas behavior of the insulation liquids during load changes and thus large temperature or pressure changes. This may facilitate the differentiation between the presence of a fault in the transformer when a protective system, such as a Buchholz relay, is triggered or whether ambient gases are just bubbling out of the liquid and entering the gas phase or the expansion tank as undissolved gases. The occurrence of gas bubbles represents an increased risk of initiating partial discharges. Moreover, the gas solubilities are also required in the dissolved gas analysis (DGA), especially by using the headspace extraction method. This contribution shows that there are not only large differences in the gas solubilities of the various insulation liquids, but also in the measurement of the gas solubilities, the so-called Ostwald coefficient, themselves. In addition, various influencing parameters on the specific gas solubility were investigated, such as the type and chemical composition of insulation liquid, their density and their aging condition.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Werkstoffwissenschaften (insg.)
- Werkstoffchemie
Zitieren
- Standard
- Harvard
- Apa
- Vancouver
- BibTex
- RIS
14th International Conference on the Properties and Applications of Dielectric Materials: ICPADM 2024. Institute of Electrical and Electronics Engineers Inc., 2024. S. 299-303.
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Determining of Gas Solubility in Various Insulation Liquids in New and Aged Conditions
AU - Homeier, Kristin
AU - Kuhnke, Moritz
AU - Werle, Peter
N1 - Publisher Copyright: © 2024 IEEE.
PY - 2024/8/4
Y1 - 2024/8/4
N2 - Knowledge of the gas solubility of the various gases in the different insulation liquids currently on the market and in power transformers, whether hermetically sealed or free-breathing, can provide indication on the gas behavior of the insulation liquids during load changes and thus large temperature or pressure changes. This may facilitate the differentiation between the presence of a fault in the transformer when a protective system, such as a Buchholz relay, is triggered or whether ambient gases are just bubbling out of the liquid and entering the gas phase or the expansion tank as undissolved gases. The occurrence of gas bubbles represents an increased risk of initiating partial discharges. Moreover, the gas solubilities are also required in the dissolved gas analysis (DGA), especially by using the headspace extraction method. This contribution shows that there are not only large differences in the gas solubilities of the various insulation liquids, but also in the measurement of the gas solubilities, the so-called Ostwald coefficient, themselves. In addition, various influencing parameters on the specific gas solubility were investigated, such as the type and chemical composition of insulation liquid, their density and their aging condition.
AB - Knowledge of the gas solubility of the various gases in the different insulation liquids currently on the market and in power transformers, whether hermetically sealed or free-breathing, can provide indication on the gas behavior of the insulation liquids during load changes and thus large temperature or pressure changes. This may facilitate the differentiation between the presence of a fault in the transformer when a protective system, such as a Buchholz relay, is triggered or whether ambient gases are just bubbling out of the liquid and entering the gas phase or the expansion tank as undissolved gases. The occurrence of gas bubbles represents an increased risk of initiating partial discharges. Moreover, the gas solubilities are also required in the dissolved gas analysis (DGA), especially by using the headspace extraction method. This contribution shows that there are not only large differences in the gas solubilities of the various insulation liquids, but also in the measurement of the gas solubilities, the so-called Ostwald coefficient, themselves. In addition, various influencing parameters on the specific gas solubility were investigated, such as the type and chemical composition of insulation liquid, their density and their aging condition.
KW - aged oil
KW - ester
KW - fault gases
KW - gas bubbles
KW - gas solubility
KW - mineral oil
KW - Ostwald coefficient
UR - http://www.scopus.com/inward/record.url?scp=85211168105&partnerID=8YFLogxK
U2 - 10.1109/ICPADM61663.2024.10750654
DO - 10.1109/ICPADM61663.2024.10750654
M3 - Conference contribution
AN - SCOPUS:85211168105
SN - 979-8-3503-8616-5
SP - 299
EP - 303
BT - 14th International Conference on the Properties and Applications of Dielectric Materials
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 14th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2024
Y2 - 4 August 2024 through 7 August 2024
ER -