Online DGA – State of the Art and Influencing Parameters

Research output: Contribution to conferencePaperResearchpeer-review

Abstract

For a holistic assessment of the condition of transformers, many factors and components have to be taken into account in connection with statistical failure properties. The analysis of gases dissolved in the insulating liquid represents an essential part of the condition assessment of transformers. However, not all influencing variables on the dissolved gas analysis (DGA) have been sufficiently researched yet. In particular, these are primarily the degassing of the transformers and the associated distortion of the basis of interpretation. Furthermore, the estimation of the criticality of a defect for the evaluation of the remaining service life is important.
In this paper, the online dissolved gas analysis (DGA) is reviewed and discussed in detail. Furthermore, results of laboratory tests with typical electrical and thermal defects in mineral oil (Nynas Nytro 4000A) are presented. Particular attention is paid to the parameters which influencing the degassing of transformer oil. In addition, experimental results regarding the gas formation of artificial electrical and thermal defects, the degassing behavior of various arrangements and their influencing parameters are shown.
Original languageEnglish
Publication statusPublished - 10 Sep 2019
Event5th International Conference on Condition Monitoring, Diagnosis and Maintenance - Radisson Blu Hotel, Bucharest, Romania
Duration: 9 Sep 201911 Sep 2019

Conference

Conference5th International Conference on Condition Monitoring, Diagnosis and Maintenance
Abbreviated titleCMDM
CountryRomania
CityBucharest
Period9/09/1911/09/19

Cite this

Riedmann, C., & Schichler, U. (2019). Online DGA – State of the Art and Influencing Parameters. Paper presented at 5th International Conference on Condition Monitoring, Diagnosis and Maintenance, Bucharest, Romania.

Online DGA – State of the Art and Influencing Parameters. / Riedmann, Christof; Schichler, Uwe.

2019. Paper presented at 5th International Conference on Condition Monitoring, Diagnosis and Maintenance, Bucharest, Romania.

Research output: Contribution to conferencePaperResearchpeer-review

Riedmann, C & Schichler, U 2019, 'Online DGA – State of the Art and Influencing Parameters' Paper presented at 5th International Conference on Condition Monitoring, Diagnosis and Maintenance, Bucharest, Romania, 9/09/19 - 11/09/19, .
Riedmann C, Schichler U. Online DGA – State of the Art and Influencing Parameters. 2019. Paper presented at 5th International Conference on Condition Monitoring, Diagnosis and Maintenance, Bucharest, Romania.
Riedmann, Christof ; Schichler, Uwe. / Online DGA – State of the Art and Influencing Parameters. Paper presented at 5th International Conference on Condition Monitoring, Diagnosis and Maintenance, Bucharest, Romania.
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