Evaluation of alternative insulating oils for use in transformers and other electrical apparatus: Characteristics of insulating oils for electrical application

There is a realistic possibility that demand for traditional naphthenic transformer oils will exceed the available supply in the mid 1980's. The results of a program directed toward evaluating alternate fluids are summarized. Oils derived from paraffinic crude sources are predicted to be more plentiful. The results of studies suggest that these paraffinic coils will be satisfactory supplements replacement fluids. Because of the differences in low temperature behavior of the two types of oils, careful consideration must be given to matching a given oil to a given application.