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A high voltage capacitor design is provided that provides improved performance. The high voltage capacitor includes a stack of mechanically bonded capacitor cells, which in one variant utilize a separator formed of two layers of paper. In one version, the high voltage capacitor may be used as a capa

A high voltage capacitor design is provided that provides improved performance. The high voltage capacitor includes a stack of mechanically bonded capacitor cells, which in one variant utilize a separator formed of two layers of paper. In one version, the high voltage capacitor may be used as a capacitative voltage divider.

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1. A method of processing high voltage capacitors, comprising the steps of: providing at least one sealed high voltage capacitor housing, the housing having an interior and an exterior, and a selectively resealable port, wherein the housing is sealed by an end cap and wherein the end cap includes th

1. A method of processing high voltage capacitors, comprising the steps of: providing at least one sealed high voltage capacitor housing, the housing having an interior and an exterior, and a selectively resealable port, wherein the housing is sealed by an end cap and wherein the end cap includes the selectively resealable port;selectively passing a fluid between the exterior and the interior at the selectively resealable port; anddetecting with a detector the presence or absence of the fluid at the exterior of the housing. 2. The method of claim 1, further comprising a step of applying a vacuum to each sealed high voltage capacitor housing. 3. The method of claim 1, further comprising a step of applying a pressure to each sealed high voltage capacitor housing. 4. The method of claim 1, wherein the step of selectively passing a fluid is facilitated by application of a pressure differential between the interior and the exterior. 5. The method of claim 4, wherein the fluid comprises a liquid. 6. The method of claim 4, wherein the fluid comprises impregnation fluid. 7. The method of claim 6, wherein between the end cap and the housing there is disposed a seal. 8. The method of claim 1, further comprising a step of placing each sealed high voltage capacitor housing within a chamber before performing the step of detecting with a detector. 9. The method of claim 8, wherein the chamber is heated. 10. The method of claim 8, wherein the chamber comprises a vacuum chamber. 11. The method of claim 1, wherein the fluid is heated. 12. A method of leak testing high voltage capacitors, comprising the steps of: providing at least one sealed high voltage capacitor housing, the housing having an interior and an exterior, and a selectively resealable port, wherein the housing is sealed by an end cap and wherein the end cap includes the selectively resealable port;selectively passing a fluid between the exterior and the interior at the selectively resealable port; anddetecting with a detector the presence or absence of the fluid at the exterior of the housing. 13. The method of claim 12, further comprising a step of applying a vacuum to each sealed high voltage capacitor housing. 14. The method of claim 12, further comprising a step of applying a pressure to each sealed high voltage capacitor housing. 15. The method of claim 12, wherein the step of selectively passing a fluid is facilitated by application of a pressure differential between the interior and the exterior. 16. The method of claim 15, wherein the fluid comprises a liquid. 17. The method of claim 15, wherein the fluid comprises impregnation fluid. 18. The method of claim 17, wherein between the end cap and the housing there is disposed a seal. 19. The method of claim 12, further comprising a step of placing each sealed high voltage capacitor housing within a chamber before performing the step of detecting with a detector. 20. The method of claim 19, wherein the chamber is heated. 21. The method of claim 19, wherein the chamber comprises a vacuum chamber. 22. The method of claim 12, wherein the fluid is heated.