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US 6,177,031 B1Granted
Thixotropic dielectric fluid for capacitors
AssigneeGeneral Electric Company
InventorsMichael G. Minnick, Patricia C. Irwin, Clive W. Reed
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Abstract
A thixotropic dielectric fluid that includes vegetable oil, transformer oil, and a clay material. The thixotropic dielectric fluid is particularly suited for use in a capacitor.
Claims12
A dielectric fluid for use in a power capacitor, the dielectric fluid comprising
- vegetable oil having a concentration of between about 40 and 85 percent by weight;
- mineral oil having a concentration of between about 15 and 60 percent by
- weight;
- and
- a clay material having a concentration of up to about 6 percent by weight, wherein the dielectric fluid exhibits a thixotropic index of at least 20.
2 more elements
A method of producing a dielectric fluid, the method comprising:
- mixing mineral oil and a clay material to produce an intermediate mixture;
- and
- mixing vegetable oil with the intermediate mixture to produce the dielectric fluid.
Dependencies are inferred from the claim text.