Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 21st International Symposium on High Voltage Engineering - Volume 1 |
| Editors | Bálint Németh |
| Place of Publication | Cham |
| Publisher | Springer Nature |
| Pages | 777-787 |
| Number of pages | 11 |
| ISBN (electronic) | 978-3-030-31676-1 |
| ISBN (print) | 9783030316754 |
| Publication status | Published - 2020 |
| Event | 21st International Symposium on High Voltage Engineering, ISH 2019 - Budapest, Hungary Duration: 26 Aug 2019 → 30 Aug 2019 |
Publication series
| Name | Lecture Notes in Electrical Engineering |
|---|---|
| Volume | 598 LNEE |
| ISSN (Print) | 1876-1100 |
| ISSN (electronic) | 1876-1119 |
Abstract
This study investigates differences in the ageing behaviour of an oil-paper insulation system in an open and hermetically closed system concerning relevant ageing markers of three different insulating liquids. In this context, the correlation of the ageing markers measured in the liquid and the current condition of the paper insulation is investigated. Accordingly, paper samples are impregnated with a non-inhibited and two different inhibited insulating oils having different oil components as well as different inhibitor contents, which are currently used in field. Although different papers from the past have shown investigations on ageing of oil-paper systems [1, 2] usually oil was used, which is not longer available today and furthermore no simultaneous comparative study was carried out in the past, as it is presented in this paper. The ageing for both systems takes place over a period of 15 weeks at the temperature of 130 ℃. These results are also supposed to be used to determine the current paper condition using the values of ageing markers of the oil without the furan content. The investigation shows that the type of used system and the oil types influence the ageing process of the insulation system and consequently the production of respective parameters. Moreover, there are differences depending on the system, which must be taken into account in the indirect state analysis of the insulating paper, since the ageing process in the closed system is slower than in the open system due to the lack of atmospheric oxygen and protection against ambient humidity.
Keywords
- Ageing, Degree of polymerization, Insulation degradation, Insulation life, Oil, Oxidation, Paper, Temperature, Transformer
ASJC Scopus subject areas
- Engineering(all)
- Industrial and Manufacturing Engineering
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Proceedings of the 21st International Symposium on High Voltage Engineering - Volume 1. ed. / Bálint Németh. Cham: Springer Nature, 2020. p. 777-787 (Lecture Notes in Electrical Engineering; Vol. 598 LNEE).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Comparison of a Thermally Accelerated Aged Oil-Paper Insulation of an Open and Hermetically Sealed System
AU - Münster, T.
AU - Kinkeldey, T.
AU - Werle, P.
AU - Hämel, K.
AU - Preusel, J.
N1 - Funding Information: Acknowledgments. The authors would like to express their gratitude to GRIDINSPECT GmbH and AiF/ZIM for the financial support as well as Weidmann Electrical Technology AG for the support with insulation materials and Analysen Service GmbH for the analysis.
PY - 2020
Y1 - 2020
N2 - This study investigates differences in the ageing behaviour of an oil-paper insulation system in an open and hermetically closed system concerning relevant ageing markers of three different insulating liquids. In this context, the correlation of the ageing markers measured in the liquid and the current condition of the paper insulation is investigated. Accordingly, paper samples are impregnated with a non-inhibited and two different inhibited insulating oils having different oil components as well as different inhibitor contents, which are currently used in field. Although different papers from the past have shown investigations on ageing of oil-paper systems [1, 2] usually oil was used, which is not longer available today and furthermore no simultaneous comparative study was carried out in the past, as it is presented in this paper. The ageing for both systems takes place over a period of 15 weeks at the temperature of 130 ℃. These results are also supposed to be used to determine the current paper condition using the values of ageing markers of the oil without the furan content. The investigation shows that the type of used system and the oil types influence the ageing process of the insulation system and consequently the production of respective parameters. Moreover, there are differences depending on the system, which must be taken into account in the indirect state analysis of the insulating paper, since the ageing process in the closed system is slower than in the open system due to the lack of atmospheric oxygen and protection against ambient humidity.
AB - This study investigates differences in the ageing behaviour of an oil-paper insulation system in an open and hermetically closed system concerning relevant ageing markers of three different insulating liquids. In this context, the correlation of the ageing markers measured in the liquid and the current condition of the paper insulation is investigated. Accordingly, paper samples are impregnated with a non-inhibited and two different inhibited insulating oils having different oil components as well as different inhibitor contents, which are currently used in field. Although different papers from the past have shown investigations on ageing of oil-paper systems [1, 2] usually oil was used, which is not longer available today and furthermore no simultaneous comparative study was carried out in the past, as it is presented in this paper. The ageing for both systems takes place over a period of 15 weeks at the temperature of 130 ℃. These results are also supposed to be used to determine the current paper condition using the values of ageing markers of the oil without the furan content. The investigation shows that the type of used system and the oil types influence the ageing process of the insulation system and consequently the production of respective parameters. Moreover, there are differences depending on the system, which must be taken into account in the indirect state analysis of the insulating paper, since the ageing process in the closed system is slower than in the open system due to the lack of atmospheric oxygen and protection against ambient humidity.
KW - Ageing
KW - Degree of polymerization
KW - Insulation degradation
KW - Insulation life
KW - Oil
KW - Oxidation
KW - Paper
KW - Temperature
KW - Transformer
UR - http://www.scopus.com/inward/record.url?scp=85076838414&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-31676-1_73
DO - 10.1007/978-3-030-31676-1_73
M3 - Conference contribution
AN - SCOPUS:85076838414
SN - 9783030316754
T3 - Lecture Notes in Electrical Engineering
SP - 777
EP - 787
BT - Proceedings of the 21st International Symposium on High Voltage Engineering - Volume 1
A2 - Németh, Bálint
PB - Springer Nature
CY - Cham
T2 - 21st International Symposium on High Voltage Engineering, ISH 2019
Y2 - 26 August 2019 through 30 August 2019
ER -