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Dibenzyl Disulfide (DBDS) is one of several sulfur compounds known to cause copper corrosion in transformers. Breakdown of the DBDS to benzyl mercaptan or a DBDS-Copper complex can still cause corrosion of copper and the formation of copper sulfide. The primary effect of the presence of corrosive sulfur species in insulating oil is the formation of copper sulfide (Cu2S) on the surface of copper conductors...
Pressboard is a hard and rigid board having high with excellent electrical and mechanical properties, is specifically produced for the high voltage and extra high voltage Transformer Industry. Components and insulating sheets of pressboard are used in oil-cooled power transformers and distribution transformers primarily due to their high purity, mechanical strength and optimal oil-impregnability....
Performance of Power and Converter transformers has been severely affected by the presence of reactive and corrosive sulphur in transformer oil. It is reported that mitigation of the problem of corrosion of copper conductors due to presence of reactive/corrosive sulphur in transformer oil is possible by the use of metal passivator which forms a thin film on copper surface to prevent interaction of...
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