ABSTRACT
Common sense is nothing more than a deposit of prejudices laid down in the mind before you reach eighteen.
Albert Einstein
Liquid dielectrics are an important segment in the study of dielectrics, and traditionally, they have been in use almost since the beginning of the electrical power for industrial and household purposes. Liquid-immersed transformers, cables, and circuit breakers are the principal examples. Historically, experiments on high-field conduction and breakdown in liquids carried out before 1960 gave such inconsistent results that a viable theory could not be formulated. However, experiments carried out mainly by Lewis [1] and his group on simple hydrocarbons, mostly in n-hexane and liquefied gases, have led to a clearer understanding of the processes that are involved in the breakdown process. The role of the medium itself, electrodes, dissolved gases, and moisture content contribute to the mechanisms in varying degrees.
