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US 8,174,817 B2Granted
Sealed and impregnated wound capacitor assemblies
AssigneeHigh Energy Corp.
InventorsGeorge Georgopoulos, Stephan Andreas Hoffman
Life of this patent
Estimating the term…
Abstract
At least one wound film/foil or metalized film capacitor is sealed between its electrodes to form a sealed enclosed annular region between the interior of the enclosure, the electrodes and the exterior of the wound capacitor to form a sealed capacitor assembly. A fluid dielectric can be introduced into the sealed enclosed annular region under a vacuum to form a sealed and impregnated wound capacitor assembly.
Claims17
A sealed and impregnated wound capacitor assembly comprising:
- at least one wound capacitor;
- a first and second electrodes, the first and second electrodes respectively connected to opposing ends of each of the at least one wound capacitor to form an electrical connection between each end of the at least one wound capacitor and the respective first or second electrode;
- an enclosure surrounding the length of each one of the at least one wound capacitor, the enclosure forming a sealed annular region between the interior of the enclosure, the first and second electrodes and the exterior of the length of each one of the at least one wound capacitor;
- a fill port disposed within at least the first or second electrode, the fill port forming a fluid dielectric flow path into the sealed annular region;
- an insertable seal fitting for sealing the fluid dielectric flow path;
- and
- a fluid dielectric disposed between the conductor and insulation windings of each one of the at least one wound capacitor by vacuum impregnation of the fluid dielectric supplied to the sealed annular region via the fill port prior to sealing the fluid dielectric flow path with the insertable sealing fitting.
4 more elements
A method of forming a sealed and impregnated wound capacitor assembly, the method comprising the steps of:
- connecting a first and second electrodes to the opposing ends of a wound capacitor to form an electrical connection between each end of the wound capacitor and the respective first or second electrode;
- forming a pre-impregnated capacitor assembly by surrounding the length of the wound capacitor with an enclosure forming a sealed annular region between the interior of the enclosure, the first and second electrodes and the exterior of the length of each one of the at least one capacitor, at least the first or second electrode having a fill port forming a fluid dielectric flow path into the sealed annular region;
- placing the pre-impregnated capacitor assembly in a vacuum chamber;
- evacuating the vacuum chamber;
- submerging the pre-impregnated capacitor assembly in a fluid dielectric in the evacuated vacuum chamber;
- venting the vacuum chamber;
- and
- sealing the fill port with a seal fitting.
5 more elements
Dependencies are inferred from the claim text.