NDLI: Investigations Into the Stray Gassing of Oils in the Fault Diagnosis of Transformers

Content Provider	IEEE Xplore Digital Library
Author	Martin, D. Lelekakis, N. Wijaya, J. Duval, M. Saha, T.
Copyright Year	1986
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.
Sponsorship	IEEE Power Engineering Society
Starting Page	2369
Ending Page	2374
Page Count	6
File Size	1270450
File Format	PDF
ISSN	08858977
Volume Number	29
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Hydrogen Aging Oil insulation Minerals Oils Power transformer insulation power transformers Dissolved gas analysis oil insulation paper insulation power transformer insulation
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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Experimental investigations on insulating liquids for power transformers: Mineral, ester, and silicone oils

Stray gassing cases of insulating liquids in HV equipment

Dissolved gas analysis differences between natural esters and mineral oils used in power transformers: a review

A hybrid tool for detection of incipient faults in transformers based on the dissolved gas analysis of insulating oil

Development of oil-dissolved hydrogen gas detector for diagnosis of transformers

Analysis of power transformer dissolved gas data using the self-organizing map

An expert system for transformer fault diagnosis using dissolved gas analysis

A fuzzy dissolved gas analysis method for the diagnosis of multiple incipient faults in a transformer

A comparative study of neural network efficiency in power transformers diagnosis using dissolved gas analysis

Investigations Into the Stray Gassing of Oils in the Fault Diagnosis of Transformers

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Investigations Into the Stray Gassing of Oils in the Fault Diagnosis of Transformers