what is dbds in transformer oil?

DBDS, or dibenzyl disulfide, is a compound found in transformer oil that serves as an antioxidant and stabilizer. It helps to improve the thermal and oxidative stability of the oil, thereby enhancing the overall performance and lifespan of transformers. By reducing the formation of sludge and degradation products, DBDS contributes to maintaining the insulating properties of the oil, ensuring efficient operation and reliability of electrical transformers.