Analysis of Dibenzyl Disulfide and Total Sulfur in Insulating Oil Using SCD

In an oil-filled transformer, sulfur-containing compounds in insulating oil are known to cause sulfide corrosion of the transformer. Specifically, dibenzyl disulfide (DBDS), an additive of insulating oil as a metal deactivator, has been reported as a cause of sulfide corrosion. The International Electrotechnical Commission (IEC) has issued the analytical standard for DBDS in insulating oil as IEC62697-1. A sulfur chemiluminescence detector (SCD) that can be used as one of gas chromatographs can selectively analyze sulfurcontaining compounds with a high sensitivity. This detector has a high selectivity and avoids the effects of contaminants and enables accurate quantification of sulfurcontaining compounds. This article introduces an analysis of DBDS in insulating oil using an SCD in accordance with IEC 62697-1, and it also reports on analysis of the quantity of total sulfur in insulating oil using the equimolar response of SCD.

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Application News
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Gas Chromatography (GC)
Dibenzyl Disulfide, Total Sulfur, Transformer Insulating Oil, Energy and Chemicals, Nexis SCD-2030 Sulfur Chemiluminescence Detector
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For Research Use Only. Not for use in diagnostic procedures.

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