Details
| Original language | English |
|---|---|
| Title of host publication | 23rd International Symposium on High Voltage Engineering (ISH 2023) |
| Pages | 1229-1235 |
| Number of pages | 7 |
| Publication status | Published - 28 Aug 2023 |
| Event | 23rd International Symposium on High Voltage Engineering, ISH 2023 - Glasgow, United Kingdom (UK) Duration: 28 Aug 2023 → 1 Sept 2023 |
Publication series
| Name | IET Conference Proceedings |
|---|---|
| Publisher | Institution of Engineering and Technology |
| Volume | 46 |
| ISSN (Print) | 2732-4494 |
Abstract
Arcing leads to enormous stress of the insulation system of a transformer and initiates ageing mechanism. The ageing processes in the insulation liquid and the plasma atmosphere produce several fault gases. The well-established dissolved gas analysis (DGA) allows the detection of transformer fault type. In addition to the conventional fault gases, also higher C3 to C5 hydrocarbons are generated during electrical stress. This new fault gases could allow the development of a more reliable DGA interpretation algorithm due to the reduction of failures during oil sampling and transport as well as a better classification of the faults within a fault type. In this contribution, four different insulation liquids, a natural and a synthetic ester, a gtl-oil and an uninhibited mineral oil, were investigated regarding to their gassing behaviour under electrical stress. Large differences in the amount as well as the type of fault gases were obvious. In addition to the typical conventional fault gases, further C3 and C4 hydrocarbons could also be identified as characteristic fault gases. Furthermore, a clear correlation could be observed between impulse energy, number of breakdowns and the concentration of gases. With increasing of energy or number of impulses, more fault gases are generated.
Keywords
- ARCING, ELECTRICAL FAULT, ESTER, FAULT GASES, HIGHER HYDROCARBONS
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
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23rd International Symposium on High Voltage Engineering (ISH 2023). 2023. p. 1229-1235 (IET Conference Proceedings; Vol. 46).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Formation of conventional fault gases and higher hydrocarbons in various insulation liquids under electrical faults
AU - Homeier, Kristin
AU - Werle, Peter
N1 - Publisher Copyright: © The Institution of Engineering & Technology 2023.
PY - 2023/8/28
Y1 - 2023/8/28
N2 - Arcing leads to enormous stress of the insulation system of a transformer and initiates ageing mechanism. The ageing processes in the insulation liquid and the plasma atmosphere produce several fault gases. The well-established dissolved gas analysis (DGA) allows the detection of transformer fault type. In addition to the conventional fault gases, also higher C3 to C5 hydrocarbons are generated during electrical stress. This new fault gases could allow the development of a more reliable DGA interpretation algorithm due to the reduction of failures during oil sampling and transport as well as a better classification of the faults within a fault type. In this contribution, four different insulation liquids, a natural and a synthetic ester, a gtl-oil and an uninhibited mineral oil, were investigated regarding to their gassing behaviour under electrical stress. Large differences in the amount as well as the type of fault gases were obvious. In addition to the typical conventional fault gases, further C3 and C4 hydrocarbons could also be identified as characteristic fault gases. Furthermore, a clear correlation could be observed between impulse energy, number of breakdowns and the concentration of gases. With increasing of energy or number of impulses, more fault gases are generated.
AB - Arcing leads to enormous stress of the insulation system of a transformer and initiates ageing mechanism. The ageing processes in the insulation liquid and the plasma atmosphere produce several fault gases. The well-established dissolved gas analysis (DGA) allows the detection of transformer fault type. In addition to the conventional fault gases, also higher C3 to C5 hydrocarbons are generated during electrical stress. This new fault gases could allow the development of a more reliable DGA interpretation algorithm due to the reduction of failures during oil sampling and transport as well as a better classification of the faults within a fault type. In this contribution, four different insulation liquids, a natural and a synthetic ester, a gtl-oil and an uninhibited mineral oil, were investigated regarding to their gassing behaviour under electrical stress. Large differences in the amount as well as the type of fault gases were obvious. In addition to the typical conventional fault gases, further C3 and C4 hydrocarbons could also be identified as characteristic fault gases. Furthermore, a clear correlation could be observed between impulse energy, number of breakdowns and the concentration of gases. With increasing of energy or number of impulses, more fault gases are generated.
KW - ARCING
KW - ELECTRICAL FAULT
KW - ESTER
KW - FAULT GASES
KW - HIGHER HYDROCARBONS
UR - http://www.scopus.com/inward/record.url?scp=85203396303&partnerID=8YFLogxK
U2 - 10.1049/icp.2024.0791
DO - 10.1049/icp.2024.0791
M3 - Conference contribution
AN - SCOPUS:85203396303
T3 - IET Conference Proceedings
SP - 1229
EP - 1235
BT - 23rd International Symposium on High Voltage Engineering (ISH 2023)
T2 - 23rd International Symposium on High Voltage Engineering, ISH 2023
Y2 - 28 August 2023 through 1 September 2023
ER -