Details
| Original language | English |
|---|---|
| Title of host publication | 2018 Condition Monitoring and Diagnosis, CMD 2018 - Proceedings |
| Editors | Ahmed Abu-Siada |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 258-263 |
| Number of pages | 6 |
| ISBN (electronic) | 9781538641262 |
| Publication status | Published - 14 Nov 2018 |
| Event | 7th International Conference on Condition Monitoring and Diagnosis, CMD 2018 - Perth, Australia Duration: 23 Sept 2018 → 26 Sept 2018 |
Publication series
| Name | VDE-Fachtagung Hochspannungstechnik 2018 |
|---|
Abstract
Transformer faults, depending on their nature, lead to decomposition of the insulating liquid and/or cellulose paper. In this process, dissolved fault gases are produced. In case of severe faults, generation of considerable amount of fault gases is expected, which will, in case of hermetically sealed power transformers, which are typical in wind parks, gradually escape from the insulating liquid and diffuse into the gas cushion. In these transformers, the tank must be hermetically sealed, because otherwise, during operation, the insulating liquid would be subjected to additional aging as a result of the absorption of oxygen and moisture from the atmosphere in addition to the temperature and thus load-dependent stress. Therefore, these transformers have a gas cushion, mostly out of nitrogen or dry air, to minimize the ingress of ambient air and thus moisture into the insulating liquid. As a cost-effective and compact alternative to gas chromatography, the development of a semiconductor-based online monitoring system of undissolved fault gases is proposed. The proposed monitoring system is based on a set of integrated sensors, 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, and humidity are also recorded permanently.
Keywords
- condition monitoring, hermetically sealed power transformers, medium voltage transformers, Online monitoring system
ASJC Scopus subject areas
- Computer Science(all)
- Computer Networks and Communications
- Computer Science(all)
- Signal Processing
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Safety, Risk, Reliability and Quality
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
2018 Condition Monitoring and Diagnosis, CMD 2018 - Proceedings. ed. / Ahmed Abu-Siada. Institute of Electrical and Electronics Engineers Inc., 2018. p. 258-263 8535777 (VDE-Fachtagung Hochspannungstechnik 2018).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Online Fault Gas Monitoring System for Hermetically Sealed Power Transformers
AU - Azirani, M. Akbari
AU - Kuhnke, M.
AU - Werle, P.
AU - Sorgatz, W.
N1 - Publisher Copyright: © 2018 IEEE. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2018/11/14
Y1 - 2018/11/14
N2 - Transformer faults, depending on their nature, lead to decomposition of the insulating liquid and/or cellulose paper. In this process, dissolved fault gases are produced. In case of severe faults, generation of considerable amount of fault gases is expected, which will, in case of hermetically sealed power transformers, which are typical in wind parks, gradually escape from the insulating liquid and diffuse into the gas cushion. In these transformers, the tank must be hermetically sealed, because otherwise, during operation, the insulating liquid would be subjected to additional aging as a result of the absorption of oxygen and moisture from the atmosphere in addition to the temperature and thus load-dependent stress. Therefore, these transformers have a gas cushion, mostly out of nitrogen or dry air, to minimize the ingress of ambient air and thus moisture into the insulating liquid. As a cost-effective and compact alternative to gas chromatography, the development of a semiconductor-based online monitoring system of undissolved fault gases is proposed. The proposed monitoring system is based on a set of integrated sensors, 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, and humidity are also recorded permanently.
AB - Transformer faults, depending on their nature, lead to decomposition of the insulating liquid and/or cellulose paper. In this process, dissolved fault gases are produced. In case of severe faults, generation of considerable amount of fault gases is expected, which will, in case of hermetically sealed power transformers, which are typical in wind parks, gradually escape from the insulating liquid and diffuse into the gas cushion. In these transformers, the tank must be hermetically sealed, because otherwise, during operation, the insulating liquid would be subjected to additional aging as a result of the absorption of oxygen and moisture from the atmosphere in addition to the temperature and thus load-dependent stress. Therefore, these transformers have a gas cushion, mostly out of nitrogen or dry air, to minimize the ingress of ambient air and thus moisture into the insulating liquid. As a cost-effective and compact alternative to gas chromatography, the development of a semiconductor-based online monitoring system of undissolved fault gases is proposed. The proposed monitoring system is based on a set of integrated sensors, 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, and humidity are also recorded permanently.
KW - condition monitoring
KW - hermetically sealed power transformers
KW - medium voltage transformers
KW - Online monitoring system
UR - http://www.scopus.com/inward/record.url?scp=85059068643&partnerID=8YFLogxK
U2 - 10.1109/CMD.2018.8535777
DO - 10.1109/CMD.2018.8535777
M3 - Conference contribution
AN - SCOPUS:85059068643
T3 - VDE-Fachtagung Hochspannungstechnik 2018
SP - 258
EP - 263
BT - 2018 Condition Monitoring and Diagnosis, CMD 2018 - Proceedings
A2 - Abu-Siada, Ahmed
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th International Conference on Condition Monitoring and Diagnosis, CMD 2018
Y2 - 23 September 2018 through 26 September 2018
ER -