Investigations into the stray gassing of oils in the fault diagnosis of transformers

Martin, Daniel, Lelekakis, Nick, Wijaya, Jaury, Duval, Michel and Saha, Tapan (2014) Investigations into the stray gassing of oils in the fault diagnosis of transformers. IEEE Transactions on Power Delivery, 29 5: 2369-2374. doi:10.1109/TPWRD.2014.2316501


Author Martin, Daniel
Lelekakis, Nick
Wijaya, Jaury
Duval, Michel
Saha, Tapan
Title Investigations into the stray gassing of oils in the fault diagnosis of transformers
Journal name IEEE Transactions on Power Delivery   Check publisher's open access policy
ISSN 0885-8977
1937-4208
Publication date 2014-10
Year available 2014
Sub-type Article (original research)
DOI 10.1109/TPWRD.2014.2316501
Open Access Status
Volume 29
Issue 5
Start page 2369
End page 2374
Total pages 6
Place of publication Piscataway, NJ, United States
Publisher Institute of Electrical and Electronics Engineers
Collection year 2015
Language eng
Abstract In this paper, we present an analysis of the gases generated by mineral oil and cellulose transformer insulation, at temperatures lower than those expected to be caused by an actual thermal fault. Gassing at relatively low temperatures, 100 °C to 200 °C, often presents a problem to the asset manager since it can be difficult to distinguish this event from that caused by an actual fault. Previous stray gassing tests were only performed for 164 h, at two temperatures, and two oxygen contents. We tested a mineral oil under 20 different conditions of oxygen and water content, for up to nearly 100 days. We found that at low-temperature levels and that by using high oxygen levels, the generation of ethylene can be more significant when compared to the other hydrocarbon gases than first thought.
Keyword Transformer diagnostics
Transformer condition assessment
Transformer insulation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Information Technology and Electrical Engineering Publications
 
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Created: Wed, 01 Oct 2014, 14:14:38 EST by Daniel Martin on behalf of School of Information Technol and Elec Engineering