Food grade vegetable oil based dielectric fluid and methods of using same
AssigneeCooper Industries, Inc.
InventorsC. Patrick McShane, Jerry L. Corkran, Richard A. Harthun, Gary A. Gauger, Kevin J. Rapp
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Abstract
In one aspect, the present invention provides a dielectric fluid for use in electrical equipment comprising a vegetable oil or vegetable oil blend. In another aspect the invention provides devices for generating and distributing electrical energy that incorporate a dielectric fluid comprising a vegetable oil or vegetable oil blend. Methods of retrofilling electrical equipment with vegetable oil based dielectric fluids also are provided.
Claims23
A method of using an electrical device comprising employing in said device a dielectric fluid consisting essentially of at least one vegetable oil, wherein said vegetable oil is substantially free of chlorinated compounds and has a viscosity between 2 and 15 cSt at 100° C., and less than about 100 cSt at 40° C., and wherein said dielectric fluid is food grade.
A device capable of generating or distributing electrical energy, wherein the device has incorporated therein a dielectric fluid consisting essentially of one or more vegetable oils that are free of chlorinated compounds, wherein said vegetable oil has a viscosity between about 2 and 15 cSt at 100° C., and less than about 110 cSt at 40° C. and wherein the dielectric fluid is food grade.
An electrical device comprising a tank for holding a dielectric fluid wherein said fluid consists essentially of one or more vegetable oils that are free of chlorinated compounds, wherein said vegetable oils have a viscosity between about 2 and about 15 cSt at 100° C., and less than about 110 cSt at 40° C., and wherein the dielectric fluid is food grade.
A method of using an electrical device comprising employing in said device a food grade dielectric fluid consisting essentially of at least one vegetable oil, wherein said vegetable oil is substantially free of chlorinated compounds.
A transformer having incorporated therein a food grade dielectric fluid consisting essentially of one or more vegetable oils that are free of chlorinated compounds.
A method for retrofilling an electrical device, comprising;
- (a) removing an existing dielectric fluid from the device;
- (b) drying the device;
- and
- (c) replacing the existing dielectric fluid with a food grade dielectric fluid consisting essentially of one or more vegetable oils that are free of chlorinated compounds, wherein said vegetable oils have a viscosity between about 2 and about 15 cSt at 100° C., and less than about 110 cSt at 40° C.
Dependencies are inferred from the claim text.