Advancements in Dissolved Gas Analysis: Risk Assessment

In this short article from Electricity Today, Drs. Draper and Dukarm describe what modern statistics can say about transformer risk assessment, once steps have been taken to improve DGA interpretation (as outlined in previous articles).

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Advancements in Dissolved Gas Analysis: Data Quality

Data quality is essential for effective dissolved gas analysis. Trend evaluation and accurate assessment of short-term changes require accuracy and low measurement variability of gas data – so data quality problems must be recognized and dealt with before any DGA interpretation is attempted. Learn more about common data quality issues in this short article from… Continue reading

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Advancements in Dissolved Gas Analysis: CO/CO2 Ratio

When conducting dissolved gas analysis, the detection of carbon oxide gases indicates a deterioration of paper insulation within the transformer. Find out more about how the ratio of these gasses can be used to help assess possible issues within the transformer in this short article from Electricity Today Magazine.

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Advancements in Dissolved Gas Analysis: Investigating Failure Cases

In this article, Drs. Draper and Dukarm discuss three case histories that illustrate the usefulness of recent innovations in transformer DGA, especially when there is gas loss.

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Advancements in Dissolved Gas Analysis: NEI & Gassing Events

Normalized energy intensity (NEI), a fault energy index based on the standard heats of formation of fault gases, provides a useful way to look at fault severity. Check out this short article by Dr. Zachary Draper and Dr. Jim Dukarm from Electricity Today Magazine on how NEI can be used to assess and track faults… Continue reading

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