Method of use and electrical equipment utilizing insulating oil consisting of a saturated hydrocarbon oil
AssigneeRTE Corporation
InventorEdwin A. Link
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Abstract
The unique, relatively nonflammable, environmentally safe, insulating oil comprises a saturated hydrocarbon oil having a molecular weight of about 500 to about 700, and a fire point above 200.degree. C. The electrical equipment comprises an oil-sealed tank, a unique insulating oil filling said tank, and an electrical component such as a conductive coil immersed in said insulating oil. A method of filling the oil-sealed tank of an electrical apparatus with the unique insulating oil also is disclosed.
Claims9
The method of minimizing the detrimental effects that can result in oil filled electrical apparatus during high fault conditions which comprises employing as an insulating oil in such electrical apparatus a relatively nonflammable and biodegradable oil consisting essentially of a saturated hydrocarbon oil having an average molecular weight of about 500 to about 700 and a fire point above 200.degree. C, which oil is liquid throughout the temperature range of 0.degree. to 40.degree. C.
In an electrical apparatus comprised of an oil tank, an electrical component in the tank and an insulating oil filling said tank, the improved insulating oil which minimizes the detrimental effects that can result during high fault conditions and consists essentially of a saturated hydrocarbon oil having an average molecular weight of about 500 to about 700 and a fire point above 200.degree. C, which oil is liquid throughout the temperature range of 0.degree. to 40.degree. C.
In the method of impregnating an electrical apparatus with an insulating oil under vacuum, the improvement which comprises utilizing as the impregnating insulating oil a relatively nonflammable, environmentally safe biodegradable oil having a fire point above 200.degree. C, said oil being a liquid consisting essentially of saturated hydrocarbons having an average molecular weight of about 500 to about 700.
Dependencies are inferred from the claim text.