Details
| Original language | English |
|---|---|
| Title of host publication | Published in: 22nd International Symposium on High Voltage Engineering (ISH 2021) |
| Pages | 230-235 |
| Number of pages | 6 |
| 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
This paper describes the possibility to determine the degree of polymerization of insulating paper for transformers through an optical measuring method. Knowledge of the current aging condition of the insulating paper is of decisive importance for the operational safety of transformers. Aging processes continuously reduce the mechanical stability of the insulating paper, increasing the risk of unscheduled failures. A novel, patented method was developed for the determination of the current paper condition, which allows conclusions to be drawn about the degree of polymerization of the insulating paper by evaluating reflected light. For this purpose, a light source is used and the measurement of its reflection spectrum via optical fibers and a compact spectrometer is performed. The investigation shows that the reflectance spectrum changes with the aging state of the insulating paper, in which a value can be calculated that shows a very strong linear correlation with the degree of polymerization of the paper. This form of measurement method offers for the first time the possibility to measure the degree of polymerization directly in the transformer and during the operation of the asset. Thus, this measurement method can be used to increase the reliability of transformers.
Keywords
- DEGREE OF POLYMERIZATION, OIL, PAPER, SENSOR, TRANSFORMER
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
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Published in: 22nd International Symposium on High Voltage Engineering (ISH 2021). 2021. p. 230-235.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Development of a novel optical sensor for condition assessment of insulating paper in transformers
AU - Münster, Tobias
AU - Werle, Peter
AU - Hämel, Kai
AU - Preusel, Jörg
N1 - Funding Information: The authors would like to express their gratidue to GRINDINSPECT 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 chemical DP analyses.
PY - 2021
Y1 - 2021
N2 - This paper describes the possibility to determine the degree of polymerization of insulating paper for transformers through an optical measuring method. Knowledge of the current aging condition of the insulating paper is of decisive importance for the operational safety of transformers. Aging processes continuously reduce the mechanical stability of the insulating paper, increasing the risk of unscheduled failures. A novel, patented method was developed for the determination of the current paper condition, which allows conclusions to be drawn about the degree of polymerization of the insulating paper by evaluating reflected light. For this purpose, a light source is used and the measurement of its reflection spectrum via optical fibers and a compact spectrometer is performed. The investigation shows that the reflectance spectrum changes with the aging state of the insulating paper, in which a value can be calculated that shows a very strong linear correlation with the degree of polymerization of the paper. This form of measurement method offers for the first time the possibility to measure the degree of polymerization directly in the transformer and during the operation of the asset. Thus, this measurement method can be used to increase the reliability of transformers.
AB - This paper describes the possibility to determine the degree of polymerization of insulating paper for transformers through an optical measuring method. Knowledge of the current aging condition of the insulating paper is of decisive importance for the operational safety of transformers. Aging processes continuously reduce the mechanical stability of the insulating paper, increasing the risk of unscheduled failures. A novel, patented method was developed for the determination of the current paper condition, which allows conclusions to be drawn about the degree of polymerization of the insulating paper by evaluating reflected light. For this purpose, a light source is used and the measurement of its reflection spectrum via optical fibers and a compact spectrometer is performed. The investigation shows that the reflectance spectrum changes with the aging state of the insulating paper, in which a value can be calculated that shows a very strong linear correlation with the degree of polymerization of the paper. This form of measurement method offers for the first time the possibility to measure the degree of polymerization directly in the transformer and during the operation of the asset. Thus, this measurement method can be used to increase the reliability of transformers.
KW - DEGREE OF POLYMERIZATION
KW - OIL
KW - PAPER
KW - SENSOR
KW - TRANSFORMER
UR - http://www.scopus.com/inward/record.url?scp=85174647403&partnerID=8YFLogxK
U2 - 10.1049/icp.2022.0020
DO - 10.1049/icp.2022.0020
M3 - Conference contribution
AN - SCOPUS:85174647403
SP - 230
EP - 235
BT - Published in: 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 -