| 摘要 |
Elementary high-voltage capacitor of high energy density for applications in energy storage, discharge, switching or filtering, consisting of two conductive armatures separated by at least one sheet of dielectric, characterised in that at least one sheet of a first dielectric is associated with each armature, that each armature consists of a metallisation which has a resistance of 2 to 30 ohms per unit area, deposited on a second dielectric consisting of a support which has a fibrous structure promoting regeneration, so that the capacitor is regenerating (self-healing), that the capacitor is impregnated with a liquid dielectric and that the nature and the thickness of each of the dielectrics as well as the liquid dielectric are chosen so that at the time when the capacitor is subjected to its nominal voltage the ratio of the electrical field to the dielectric strength is substantially equal for each of the dielectrics. When this capacitor is charged at its nominal voltage, the average electrical field prevailing in the dielectric is approximately 200 V/ mu m to more than 400 V/ mu m, and its energy density per unit volume is from approximately 0.5 J/cm<3> to more than 2 J/cm<3>. <IMAGE>
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