A capacitor insulation system is disclosed in the present application. The insulation system includes a dielectric fluid containing a first voltage stabilizing additive of a first concentration. The insulation system further includes a dielectric film containing the first voltage stabilizing additive of a second concentration and impregnated in the dielectric fluid. The first concentration is greater than the second concentration. The insulation system prepared according to the present disclosure can provide an increased and quite stable dielectric strength.

A parallel plate capacitor including a cathode core that further includes a pair of parallel electrodes and a dielectric material layer positioned between the pair of parallel electrodes. The capacitor also includes a dielectric liquid medium, where the cathode core is at least partially submerged in the dielectric liquid medium.

A parallel plate capacitor including a cathode core that further includes a pair of parallel electrodes and a dielectric material layer positioned between the pair of parallel electrodes. The capacitor also includes a dielectric liquid medium, where the cathode core is at least partially submerged in the dielectric liquid medium.

One aspect is contemplated for providing a device having a liquid crystal material exhibiting a dielectric constant of 1000 or more at a temperature at which a specific liquid crystal phase is developed, and a unit configured to apply voltage to the liquid crystal material at the temperature at which the specific liquid crystal phase is developed.

One aspect is contemplated for providing a device having a liquid crystal material exhibiting a dielectric constant of 1000 or more at a temperature at which a specific liquid crystal phase is developed, and a unit configured to apply voltage to the liquid crystal material at the temperature at which the specific liquid crystal phase is developed.

There is a film capacitor capable of suppressing decrease in the electrostatic capacitance even after a self-healing phenomenon has occurred. A film capacitor includes a dielectric film; and an electrode film disposed on a principal surface of the dielectric film, the dielectric film containing an organic resin and an organic component having a higher volatility than the organic resin. The organic resin is preferably any one of a cyclic olefin-based resin, a polyarylate resin, a polyphenylene ether resin and a polyetherimide resin. The organic component is preferably at least one selected from the group consisting of cyclohexane, ethylcyclohexane, toluene, xylene, chloroform, and tetrahydrofuran.

There is a film capacitor capable of suppressing decrease in the electrostatic capacitance even after a self-healing phenomenon has occurred. A film capacitor includes a dielectric film; and an electrode film disposed on a principal surface of the dielectric film, the dielectric film containing an organic resin and an organic component having a higher volatility than the organic resin. The organic resin is preferably any one of a cyclic olefin-based resin, a polyarylate resin, a polyphenylene ether resin and a polyetherimide resin. The organic component is preferably at least one selected from the group consisting of cyclohexane, ethylcyclohexane, toluene, xylene, chloroform, and tetrahydrofuran.

A power capacitor unit for high-pressure applications is provided. The power capacitor unit includes a housing, a plurality of capacitor elements connected to each other and arranged inside the housing, a dielectric liquid (L), a solid electrical insulation system arranged to electrically insulate each capacitor element, a busbar, a plurality of fuse wires, each fuse wire having a first end connected to a respective capacitor element and a second end connected to the busbar (B), wherein the capacitor elements, the solid electrical insulation system, and the fuse wires are immersed in the dielectric liquid (L). Each fuse wire has a plurality of first sections that are in physical contact with the electrical insulation system, and wherein each fuse wire has a plurality of second sections without physical contact with the solid electrical insulation system.

A power capacitor unit for high-pressure applications is provided. The power capacitor unit includes a housing, a plurality of capacitor elements connected to each other and arranged inside the housing, a dielectric liquid (L), a solid electrical insulation system arranged to electrically insulate each capacitor element, a busbar, a plurality of fuse wires, each fuse wire having a first end connected to a respective capacitor element and a second end connected to the busbar (B), wherein the capacitor elements, the solid electrical insulation system, and the fuse wires are immersed in the dielectric liquid (L). Each fuse wire has a plurality of first sections that are in physical contact with the electrical insulation system, and wherein each fuse wire has a plurality of second sections without physical contact with the solid electrical insulation system.

High voltage capacitors and methods of manufacturing the same are disclosed. An apparatus includes a first electrode of a capacitor above a semiconductor substrate. The first electrode is parallel to a plane perpendicular to the substrate. The apparatus further includes a second electrode spaced apart from the first electrode and parallel to the plane. The first electrode and the second electrode each including: (1) a first metal segment in a first metal layer, (2) a second metal segment in a second metal layer, and (3) a conductive via in an intermetal dielectric layer between the first and second metal layers interconnecting the first and second metal segments.