Comparison of Methods for the Interpretation of Dissolved Gases in Soybean Based Natural Ester

Meira, Matias; Álvarez, Raúl Emilio; Verucchi, Carlos; Catalano, Leonardo J.

doi:10.1109/eic49891.2021.9612367

Cited by 1 publication

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References 15 publications

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“…According to refs. [24,25], the traditional DGA methods based on mineral oil need to be reconsidered, and some methods applicable to natural esters should still need to be further improved and modified. Therefore, it is of great significance to study the gas generation characteristics and differences among natural ester insulating oils for the modification and improvement of the existing DGA method.…”

Section: Introductionmentioning

confidence: 99%

Difference analysis of dissolved gas in natural ester insulating fluids under typical electrical and thermal faults: An experimental study

Xing

et al. 2023

High Voltage

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Natural ester insulating oil is widely used in transformers due to its good fire resistance and biodegradability. It is mainly composed of triglycerides, and there are some differences in fatty acid composition and content among natural esters. Therefore, the fault diagnosis methods based on dissolved gas analysis are different. Three kinds of natural ester insulating oils are used to study the dissolved gas in oil under typical electrical and thermal faults of power transformers. Thermal faults from 200°C to 800°C and electrical faults with different discharge energies, which include partial discharge, breakdown discharge, and arc discharge, are simulated. The characteristic gases and their variation trends of natural esters under thermal and electrical faults are obtained through the experimental results. The gas generation characteristics of the three natural ester insulating oils under typical electrical and thermal faults are almost similar, but the relative percentages of characteristic gases have certain differences. Natural ester insulating oil with a higher unsaturation degree tends to produce more H2 and less C2H4. Finally, the fault diagnosis methods are used to determine the fault gas data, and the Duval pentagon is modified and improved according to the gas generation characteristics of natural esters.

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Section: Introductionmentioning

confidence: 99%

Difference analysis of dissolved gas in natural ester insulating fluids under typical electrical and thermal faults: An experimental study

Xing

et al. 2023

High Voltage

View full text Add to dashboard Cite

show abstract

Comparison of Methods for the Interpretation of Dissolved Gases in Soybean Based Natural Ester

Cited by 1 publication

References 15 publications

Difference analysis of dissolved gas in natural ester insulating fluids under typical electrical and thermal faults: An experimental study

Difference analysis of dissolved gas in natural ester insulating fluids under typical electrical and thermal faults: An experimental study

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