Abstract: A vacuum interrupter for switching voltages is particularly configured for high voltages in a range greater than or equal to 52 kV. The vacuum interrupter has at least one covering envelope, at least one fixed contact, and at least one movable contact. At least one control element is arranged on the vacuum interrupter.

Abstract: A vacuum switching unit of a vacuum circuit breaker has a vacuum interrupter, an insulating sleeve which surrounds the vacuum interrupter, extends tubularly about a longitudinal axis of the vacuum interrupter and is made of an insulating material. A plurality of capacitor electrodes are integrated into the insulating sleeve.

Abstract: A vacuum interrupter for switching voltages, in particular high voltages, includes at least one envelope, at least one fixed contact, at least one movable contact, and control elements in particular having different lengths and/or widths disposed on the at least one vacuum interrupter. An assembly includes the vacuum interrupters electrically connected in series, in particular by control elements disposed on the at least two vacuum interrupters, and/or by control elements of one vacuum interrupter connected in series to control elements of another vacuum interrupter, in particular of all vacuum interrupters. A method for grading or controlling voltage distribution among vacuum interrupters uses control elements, in particular capacitors and/or resistors, disposed on the vacuum interrupters, in particular in a housing along with the vacuum interrupters and/or along with control elements of different vacuum interrupters that are connected in series.

Abstract: Various embodiments include a method for producing a ceramic insulator for a high-voltage or medium-voltage switching system comprising: attaching a base material for an equipotential layer between two axially symmetrical ceramic structural elements; disposing the electrically conductive equipotential layer between the two ceramic structural elements; and joining the two ceramic structural elements to form a unitary body along a symmetry axis of a first of the two elements.

Abstract: A vacuum interrupter includes a housing having at least one annular ceramic insulating element which forms a vacuum chamber. A contact system has two contacts which are movable relative to one another. A capacitive element has two electrodes and a dielectric material disposed between the electrodes. The capacitive element is form-lockingly mounted on the insulating element and has a capacitance between 400 pF and 4000 pF. A high-voltage switching assembly including the vacuum interrupter is also provided.

Abstract: A vacuum interrupter includes a housing having at least one annular ceramic insulating element which forms a vacuum chamber. A contact system has two contacts which are movable relative to one another. A capacitive element has two electrodes and a dielectric material disposed between the electrodes. The capacitive element is form-lockingly mounted on the insulating element and has a capacitance between 400 pF and 4000 pF. A high-voltage switching assembly including the vacuum interrupter is also provided.

Abstract: Various embodiments include an insulator arrangement for a high-voltage or medium-voltage assembly comprising an axially symmetrical insulating structure element having two annular base regions separated from one another by an annular blocking region. The relative permittivity of the material of the blocking region is at least twice as high as the relative permittivity of the material of the base region.

Abstract: The present disclosure relates to semiconductors. Some embodiments may include a series circuit arrangement of power semiconductors comprising: cooling-water boxes arranged on the semiconductors and electrically connected to them; two cooling-water distributor lines; respective branchings on the cooling-water distributor lines for the cooling chambers; and a control electrode arranged on the cooling-water distributor lines. The cooling chambers are connected in parallel between the cooling-water distributor lines with respect to a cooling-water stream. The cooling chambers are connected to the branchings via a respective connecting line. For at least some of the cooling chambers, the branchings on the cooling-water distributor lines are arrayed relative to the position of the respective cooling chamber in offset manner in relation to a geometrically shortest possible link to the cooling-water distributor lines, so that a difference of potential between the cooling chambers and the branchings is minimized.

Abstract: Various embodiments include an insulator arrangement for a high-voltage or medium-voltage assembly comprising an axially symmetrical insulating structure element having two annular base regions separated from one another by an annular blocking region. The relative permittivity of the material of the blocking region is at least twice as high as the relative permittivity of the material of the base region.

Abstract: Various embodiments include a method for producing a ceramic insulator for a high-voltage or medium-voltage switching system comprising: attaching a base material for an equipotential layer between two axially symmetrical ceramic structural elements; disposing the electrically conductive equipotential layer between the two ceramic structural elements; and joining the two ceramic structural elements to form a unitary body along a symmetry axis of a first of the two elements.

Abstract: A storage structure of an electrical metal-air energy storage cell is provided having an active storage material. The storage structure has a core region and at least one shell region, wherein the material in the core region has a higher porosity than the material of the shell region.

Abstract: The present disclosure relates to semiconductors. Some embodiments may include a series circuit arrangement of power semiconductors comprising: cooling-water boxes arranged on the semiconductors and electrically connected to them; two cooling-water distributor lines; respective branchings on the cooling-water distributor lines for the cooling chambers; and a control electrode arranged on the cooling-water distributor lines. The cooling chambers are connected in parallel between the cooling-water distributor lines with respect to a cooling-water stream. The cooling chambers are connected to the branchings via a respective connecting line. For at least some of the cooling chambers, the branchings on the cooling-water distributor lines are arrayed relative to the position of the respective cooling chamber in offset manner in relation to a geometrically shortest possible link to the cooling-water distributor lines, so that a difference of potential between the cooling chambers and the branchings is minimized.

Abstract: An energy conversion cell includes an electrochemical conversion unit. The energy conversion cell has an electrically positive side with a process gas supply and an electrically negative side. The electrochemical conversion unit, which has a self-supporting substrate and a number of functional layers, is disposed between the two sides. The electrochemical conversion unit has a positive electrode and a negative electrode. The negative electrode includes a porous metallic, self-supporting substrate.

Abstract: A storage element for a solid-electrolyte battery is provided, having a main body which is composed of a porous matrix of sintered ceramic particles, and also having a redox system which is composed of a first metal and/or at least one oxide of the first metal, wherein a basic composition of the storage element comprises at least one further oxide from the group comprising Y2O3, MgO, Gd2O3, WO3, ZnO, MnO which is suitable for forming an oxidic mixed phase with the first metal and/or the at least one oxide of the first metal.

Abstract: A storage element for a solid electrolyte battery is provided, having a main member including a porous ceramic matrix in which particles that are made of a first metal and/or a metal oxide and jointly form a redox couple are embedded. The storage element further includes particles made of another metal and/or an associated metal oxide, the other metal being electrochemically more noble than the first metal.

Abstract: An energy conversion cell includes an electrochemical conversion unit. The energy conversion cell has an electrically positive side with a process gas supply and an electrically negative side. The electrochemical conversion unit, which has a self-supporting substrate and a number of functional layers, is disposed between the two sides. The electrochemical conversion unit has a positive electrode and a negative electrode. The negative electrode includes a porous metallic, self-supporting substrate.

Abstract: A method for producing a piezo actuator includes: providing a green stack including alternately successive green films and inner electrode layers; forming trenches on the outside green stack in areas in which the inner electrode layers are intended to be electrically insulated from the corresponding outer electrodes, the trenches shortening the inner electrode layers from the outside of the green stack toward the inside; filling the trenches with an electrically insulating slurry; further processing the green stack, including filling the trenches with slurry, such that the green films produce piezo electric layers and the green stack produces a piezo stack; mounting two outer electrodes on the outside of the piezo stack, such that the two outer electrodes are alternately electrically connected to the inner electrode layers. The trenches may be filled with the slurry using one of the following methods; screen printing, immersion, spraying, or vacuum infiltration.

Abstract: A storage structure of an electrical metal-air energy storage cell is provided having an active storage material. The storage structure has a core region and at least one shell region, wherein the material in the core region has a higher porosity than the material of the shell region.

Abstract: A storage element for a solid-electrolyte battery is provided, having a main body which is composed of a porous matrix of sintered ceramic particles, and also having a redox system which is composed of a first metal and/or at least one oxide of the first metal, wherein a basic composition of the storage element comprises at least one further oxide from the group comprising Y2O3, MgO, Gd2O3, WO3, ZnO, MnO which is suitable for forming an oxidic mixed phase with the first metal and/or the at least one oxide of the first metal.

Abstract: A storage element for a solid electrolyte battery is provided, having a main member including a porous ceramic matrix in which particles that are made of a first metal and/or a metal oxide and jointly form a redox couple are embedded. The storage element further includes particles made of another metal and/or an associated metal oxide, the other metal being electrochemically more noble than the first metal.