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High Voltage Power Transformer Dissolved Gas Analysis, Measurement and Interpretation Techniques

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Open access
Authors
Abu Bakar, Norazhar
Abu Siada, Ahmed
Date
2013
Type
Conference Paper

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Abu Bakar, Norazhar and Abu Siada, Ahmed. 2013. High Voltage Power Transformer Dissolved Gas Analysis, Measurement and Interpretation Techniques, in High Voltage Maintenance Forum, Nov 27-28 2013. Perth, W.A.: IDC Technologies.
Source Title
High Voltage Maintenance Forum
Source Conference
High Voltage Maintenance Forum
Remarks

Presented on day 1 in session #3: "Effective Diagnostic Techniques for HV Power Transformers using Furans and Dissolved Gas-in-Oil Analysis".

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Abstract

Dissolved Gas Analysis (DGA) is widely accepted powerful tool in diagnosing power transformer health condition. Several DGA measurement techniques have been developed since 1950’s, from limited laboratory testing up to site online monitoring. Gas Chromatography (GC), Hydrogen On-line Monitor and Photo-Acoustic Spectroscopy (PAS) are most popular among existing DGA techniques. Basic operating principle, advantages and disadvantages of GC, Hydrogen On-line Monitor and PAS are reviewed and discussed in this paper. Several DGA interpretation techniques such as Key Gas Method, Doernenburg, Rogers, IEC ratio methods and Duval Triangle method are also reviewed in this paper.