Details
| Original language | English |
|---|---|
| Pages (from-to) | 295-300 |
| Number of pages | 6 |
| Journal | IET Conference Proceedings |
| Volume | 2023 |
| Issue number | 46 |
| Publication status | Published - 2023 |
| Event | 23rd International Symposium on High Voltage Engineering, ISH 2023 - Glasgow, United Kingdom (UK) Duration: 28 Aug 2023 → 1 Sept 2023 |
Abstract
Hermetically sealed oil-filled power transformers are manufactured with a sealed and gastight tank. A gas cushion, usually compressed nitrogen or dry air, is maintained above the liquid. In case of severe faults, the generation of a considerable amount of fault gases is expected, which will, in the case of hermetically sealed power transformers, gradually escape from the insulating liquid and diffuse into the gas cushion. As a cost-effective and compact alternative to gas chromatography, a prototype semiconductor-based online monitoring system of undissolved fault gases was developed by the Schering-Institute. In this contribution, the new monitoring system is investigated regarding its accuracy under different conditions. The developed online monitoring system in this contribution is based on a set of integrated sensors housed in an aluminium enclosure, a controller board, a DC power supply, and a device software, tracking the concentration of fault gases in the gas cushion continuously, through which faults in the insulating system can be detected early. Furthermore, physical parameters such as temperature, pressure, oxygen, and humidity are also recorded permanently. The proposed online monitoring system showed convincing and promising results.
Keywords
- Condition monitoring, Gas monitoring, Hermetically sealed power transformers, Online monitoring system
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
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In: IET Conference Proceedings, Vol. 2023, No. 46, 2023, p. 295-300.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Investigation of an Online Fault Gas Monitoring System for Hermetically Sealed Power Transformers
AU - Balali, Behnam
AU - Azirani, Mohammad Akbari
AU - Kuhnke, Moritz
AU - Werle, Peter
AU - Azirani, Asghar Akbari
AU - Sorgatz, Wolfgang
N1 - Publisher Copyright: © The Institution of Engineering & Technology 2023.
PY - 2023
Y1 - 2023
N2 - Hermetically sealed oil-filled power transformers are manufactured with a sealed and gastight tank. A gas cushion, usually compressed nitrogen or dry air, is maintained above the liquid. In case of severe faults, the generation of a considerable amount of fault gases is expected, which will, in the case of hermetically sealed power transformers, gradually escape from the insulating liquid and diffuse into the gas cushion. As a cost-effective and compact alternative to gas chromatography, a prototype semiconductor-based online monitoring system of undissolved fault gases was developed by the Schering-Institute. In this contribution, the new monitoring system is investigated regarding its accuracy under different conditions. The developed online monitoring system in this contribution is based on a set of integrated sensors housed in an aluminium enclosure, a controller board, a DC power supply, and a device software, tracking the concentration of fault gases in the gas cushion continuously, through which faults in the insulating system can be detected early. Furthermore, physical parameters such as temperature, pressure, oxygen, and humidity are also recorded permanently. The proposed online monitoring system showed convincing and promising results.
AB - Hermetically sealed oil-filled power transformers are manufactured with a sealed and gastight tank. A gas cushion, usually compressed nitrogen or dry air, is maintained above the liquid. In case of severe faults, the generation of a considerable amount of fault gases is expected, which will, in the case of hermetically sealed power transformers, gradually escape from the insulating liquid and diffuse into the gas cushion. As a cost-effective and compact alternative to gas chromatography, a prototype semiconductor-based online monitoring system of undissolved fault gases was developed by the Schering-Institute. In this contribution, the new monitoring system is investigated regarding its accuracy under different conditions. The developed online monitoring system in this contribution is based on a set of integrated sensors housed in an aluminium enclosure, a controller board, a DC power supply, and a device software, tracking the concentration of fault gases in the gas cushion continuously, through which faults in the insulating system can be detected early. Furthermore, physical parameters such as temperature, pressure, oxygen, and humidity are also recorded permanently. The proposed online monitoring system showed convincing and promising results.
KW - Condition monitoring
KW - Gas monitoring
KW - Hermetically sealed power transformers
KW - Online monitoring system
UR - http://www.scopus.com/inward/record.url?scp=85203382905&partnerID=8YFLogxK
U2 - 10.1049/icp.2024.0504
DO - 10.1049/icp.2024.0504
M3 - Conference article
AN - SCOPUS:85203382905
VL - 2023
SP - 295
EP - 300
JO - IET Conference Proceedings
JF - IET Conference Proceedings
IS - 46
T2 - 23rd International Symposium on High Voltage Engineering, ISH 2023
Y2 - 28 August 2023 through 1 September 2023
ER -