Details
| Original language | English |
|---|---|
| Title of host publication | CEIDP 2020 |
| Subtitle of host publication | 2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 17-20 |
| Number of pages | 4 |
| ISBN (electronic) | 9781728195728 |
| ISBN (print) | 978-1-7281-9573-5 |
| Publication status | Published - 2020 |
| Event | 2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2020 - Virtual, East Rutherford, United States Duration: 18 Oct 2020 → 30 Oct 2020 |
Publication series
| Name | Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP |
|---|---|
| Volume | 2020-October |
| ISSN (Print) | 0084-9162 |
Abstract
The assessment of the aging condition is becoming increasingly important for operators of high voltage assets. Power transformers are especially one of the most important units in the electrical power grid. Due to the fact that oil-paper insulation is still the most economical form of insulation, and is therefore found in the majority of transformers, the condition assessment of the paper insulation is decisive for estimating the remaining service life. Since the determination of the condition via furans is associated with certain fluctuations, several other aging parameters are investigated. Therefore, this study intends to determine how those aging markers of the insulating liquid behave in the absence of insulating paper and how the values change with insulating paper; thus, from the difference between important parameters, indicating the paper aging might be possible. For the investigation, a non-inhibited and an inhibited insulating oil as well as a further inhibited oil with a different composition, are tested as the most common insulating liquids. For this purpose, an open system is reproduced, which has permanent contact with the environment air. Accordingly, the study is carried out for long-term thermal stress to obtain samples with a wide spectrum of aging status. The entire study extended over a period of 14-15 weeks at a temperature of 130 °C with performing the measurements of the parameters at various aging times. The study reveals that the results can be used for an improved condition assessment of transformers.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Engineering(all)
- Electrical and Electronic Engineering
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CEIDP 2020: 2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena. Institute of Electrical and Electronics Engineers Inc., 2020. p. 17-20 9437563 (Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP; Vol. 2020-October).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Comparison of Aging Markers of Insulating Liquids during Aging with and without Paper Insulation
AU - Münster, Tobias
AU - Kinkeldey, Tobias
AU - Werle, Peter
AU - Hämel, K.
AU - Preusel, J.
N1 - Funding information: 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 chemical DP analyses.
PY - 2020
Y1 - 2020
N2 - The assessment of the aging condition is becoming increasingly important for operators of high voltage assets. Power transformers are especially one of the most important units in the electrical power grid. Due to the fact that oil-paper insulation is still the most economical form of insulation, and is therefore found in the majority of transformers, the condition assessment of the paper insulation is decisive for estimating the remaining service life. Since the determination of the condition via furans is associated with certain fluctuations, several other aging parameters are investigated. Therefore, this study intends to determine how those aging markers of the insulating liquid behave in the absence of insulating paper and how the values change with insulating paper; thus, from the difference between important parameters, indicating the paper aging might be possible. For the investigation, a non-inhibited and an inhibited insulating oil as well as a further inhibited oil with a different composition, are tested as the most common insulating liquids. For this purpose, an open system is reproduced, which has permanent contact with the environment air. Accordingly, the study is carried out for long-term thermal stress to obtain samples with a wide spectrum of aging status. The entire study extended over a period of 14-15 weeks at a temperature of 130 °C with performing the measurements of the parameters at various aging times. The study reveals that the results can be used for an improved condition assessment of transformers.
AB - The assessment of the aging condition is becoming increasingly important for operators of high voltage assets. Power transformers are especially one of the most important units in the electrical power grid. Due to the fact that oil-paper insulation is still the most economical form of insulation, and is therefore found in the majority of transformers, the condition assessment of the paper insulation is decisive for estimating the remaining service life. Since the determination of the condition via furans is associated with certain fluctuations, several other aging parameters are investigated. Therefore, this study intends to determine how those aging markers of the insulating liquid behave in the absence of insulating paper and how the values change with insulating paper; thus, from the difference between important parameters, indicating the paper aging might be possible. For the investigation, a non-inhibited and an inhibited insulating oil as well as a further inhibited oil with a different composition, are tested as the most common insulating liquids. For this purpose, an open system is reproduced, which has permanent contact with the environment air. Accordingly, the study is carried out for long-term thermal stress to obtain samples with a wide spectrum of aging status. The entire study extended over a period of 14-15 weeks at a temperature of 130 °C with performing the measurements of the parameters at various aging times. The study reveals that the results can be used for an improved condition assessment of transformers.
UR - http://www.scopus.com/inward/record.url?scp=85107196773&partnerID=8YFLogxK
U2 - 10.1109/CEIDP49254.2020.9437563
DO - 10.1109/CEIDP49254.2020.9437563
M3 - Conference contribution
AN - SCOPUS:85107196773
SN - 978-1-7281-9573-5
T3 - Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
SP - 17
EP - 20
BT - CEIDP 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2020
Y2 - 18 October 2020 through 30 October 2020
ER -