Details
| Original language | English |
|---|---|
| Title of host publication | 22nd International Symposium on High Voltage Engineering (ISH 2021) |
| Pages | 260-263 |
| Number of pages | 4 |
| ISBN (electronic) | 978-1-83953-605-2 |
| Publication status | Published - 2021 |
| Event | 22nd International Symposium on High Voltage Engineering, ISH 2021 - Xi'an, Virtual, China Duration: 21 Nov 2021 → 26 Nov 2021 |
Abstract
The ongoing aging of transformers in the power supply networks represents an increasing technical and financial risk for operators. Therefore, the knowledge of the aging condition of the asset is of elementary interest in order to be able to plan replacement and exchange measures in a time- and cost-optimized manner. Since the end of life of transformers is determined by the aging of the solid insulation, the DP value is considered to be an indicator of the aging of the entire asset. However, this can only be determined directly by paper sampling with the active part accessible, which limits its practicality. Therefore, in the past, the paper condition was estimated by means of furan derivatives. Another approach is to estimate the DP value using computer-aided methods based on other insulating oil characteristics. In this paper, the results of both estimation methods are compared with the actual DP values of real transformers to investigate the validity of this new approach. Additionally the measured furan concentration will be compared to the measured DP value from more than 50 operationally aged transformers.
Keywords
- DP VALUE, FUZZY LOGIC, LIFE TIME ESTIMATION, POWER TRANSFORMER
ASJC Scopus subject areas
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22nd International Symposium on High Voltage Engineering (ISH 2021). 2021. p. 260-263.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Lifetime Estimation of Operational Aged Transformers with New Fuzzy Logic Algorithms
AU - Schreiter, Sebastian
AU - Kinkeldey, Tobias
AU - Lohmeye, Holger
AU - Werle, Peter
AU - Münster, Tobias
PY - 2021
Y1 - 2021
N2 - The ongoing aging of transformers in the power supply networks represents an increasing technical and financial risk for operators. Therefore, the knowledge of the aging condition of the asset is of elementary interest in order to be able to plan replacement and exchange measures in a time- and cost-optimized manner. Since the end of life of transformers is determined by the aging of the solid insulation, the DP value is considered to be an indicator of the aging of the entire asset. However, this can only be determined directly by paper sampling with the active part accessible, which limits its practicality. Therefore, in the past, the paper condition was estimated by means of furan derivatives. Another approach is to estimate the DP value using computer-aided methods based on other insulating oil characteristics. In this paper, the results of both estimation methods are compared with the actual DP values of real transformers to investigate the validity of this new approach. Additionally the measured furan concentration will be compared to the measured DP value from more than 50 operationally aged transformers.
AB - The ongoing aging of transformers in the power supply networks represents an increasing technical and financial risk for operators. Therefore, the knowledge of the aging condition of the asset is of elementary interest in order to be able to plan replacement and exchange measures in a time- and cost-optimized manner. Since the end of life of transformers is determined by the aging of the solid insulation, the DP value is considered to be an indicator of the aging of the entire asset. However, this can only be determined directly by paper sampling with the active part accessible, which limits its practicality. Therefore, in the past, the paper condition was estimated by means of furan derivatives. Another approach is to estimate the DP value using computer-aided methods based on other insulating oil characteristics. In this paper, the results of both estimation methods are compared with the actual DP values of real transformers to investigate the validity of this new approach. Additionally the measured furan concentration will be compared to the measured DP value from more than 50 operationally aged transformers.
KW - DP VALUE
KW - FUZZY LOGIC
KW - LIFE TIME ESTIMATION
KW - POWER TRANSFORMER
UR - http://www.scopus.com/inward/record.url?scp=85174582663&partnerID=8YFLogxK
U2 - 10.1049/icp.2022.0022
DO - 10.1049/icp.2022.0022
M3 - Conference contribution
AN - SCOPUS:85174582663
SP - 260
EP - 263
BT - 22nd International Symposium on High Voltage Engineering (ISH 2021)
T2 - 22nd International Symposium on High Voltage Engineering, ISH 2021
Y2 - 21 November 2021 through 26 November 2021
ER -