An insulating spacer and a gas insulation shutoff apparatus each having a high dielectric strength against adhesion of a metal foreign substance are provided without increasing size or complicating a shape of the insulating spacer. In an insulating spacer of a gas insulation shutoff apparatus including a grounded tank filled with an insulating gas, a high-voltage conductor provided within the grounded tank, and the insulating spacer supporting and fixing the high-voltage conductor within the grounded tank, the insulating spacer includes a conductor to be connected to the high-voltage conductor, an insulating structure supporting and fixing the conductor within the grounded tank, and a nonlinear resistance layer provided on a creepage surface of the insulating structure, and the nonlinear resistance layer is provided in a portion to be a high-field portion of the creepage surface of the insulating structure.

The present invention relates to a bus conductor connection structure for electric field relaxation. The bus conductor connection structure for electric field relaxation includes: an enclosure filled with an inert gas; spacers coupled to two side end portions of the enclosure in a facing contact manner and having connection conductors; conductors provided with predetermined intervals being maintained inside the enclosure; and coupling portions formed in end portions of the conductors, wherein the coupling portion is coupled to the connection conductor in a close contact manner with bolts. Accordingly, the bus conductor connection structure for electric field relaxation is allowed to simply fixing conductors and assembling bolts of a gas insulated bus and to reduce a size of the bus by shortening an insulation distance between the bus and the ground by using a shape and arrangement for electric field relaxation.

A method for producing an electrical power device from subsequently manufactured parts by an additive manufacturing technique includes determining a target spatial distribution of a physical property of the electrical power device, the physical property being an electrical property and/or a mechanical property; forming a part of the electrical power device; selecting a physical property of a subsequent part of the electrical power device corresponding to the determined spatial distribution of the physical property such as to be different from a corresponding physical property of the part; and by means of the additive manufacturing technique, forming the subsequent part such that it is at least partially in contact with the part. An electrical power device is obtainable by the method, and the electrical power device may be used as an AC or DC insulator in an HVAC or HVDC apparatus.

A bushing for switchgear is composed of an outer metal ring, a current-conducting element and a disk-shaped ceramic insulating element which can be mounted in a floating manner in the outer metal ring. There is also described a switchgear with such a bushing.

A gas electrical apparatus includes: a container filled with insulating gas; a high voltage conductor arranged inside the container and applied with a prescribed voltage; and an insulating support member configured to insulate and support the high voltage conductor relative to the container. The high voltage conductor is covered by a first dielectric film. The first dielectric film includes a through hole extending from the first main surface to the second main surface. The through hole has an inner circumferential surface on which a first coating film is formed such that at least a hole diameter of the through hole is less than a diameter of an electron avalanche in a state where a gas insulated electrical apparatus is used.

An insulating system includes an electrically insulating, substantially disk-shaped insulating configuration which spans a base surface. The insulation configuration includes at least one first and one second sub-element. A joining gap is disposed between the two sub-elements. An assembly method for an insulating system is also provided.

An electrical distribution enclosure includes an electrically insulated panel defining an access portion of the enclosure and a load portion of the enclosure; at least one electrically insulated compartment panel positioned within the access portion; and two or more compartments within the access portion, each compartment separated from an adjacent compartment by an electrically insulated compartment panel, each of the two or more compartments having a front-accessible neutral connection, at least one front-accessible phase connection and a at least rear phase connection.

A gas electrical apparatus includes: a container filled with insulating gas; a high voltage conductor arranged inside the container and applied with a prescribed voltage; and an insulating support member configured to insulate and support the high voltage conductor relative to the container. The high voltage conductor is covered by a first dielectric film. The first dielectric film includes a through hole extending from the first main surface to the second main surface. The through hole has an inner circumferential surface on which a first coating film is formed such that at least a hole diameter of the through hole is less than a diameter of an electron avalanche in a state where a gas insulated electrical apparatus is used.

The inventive rack positioning assembly for an electric panel comprises a vertical busbar (J2) for distributing electric current to electric appliances, said busbar comprising several bars, which are positioned in a same vertical plane and on which it is provided to connect racks of the electric panel, and several rack positioning modules (20), which are positioned above one another and which surround the bars of the vertical busbar. The positioning modules (20) comprise means (50) for increasing the insulation distance between the bars at the interface between two successive modules, that insulation distance corresponding to the length of the electric creep path between the bars.

A busbar module includes: busbars fixed to battery cells of a battery module; a plate-like flexible circuit body; and a case that accommodates the circuit body and the busbars, in which the circuit body includes a trunk portion extending in a first direction in which the battery cells are arranged, and branch portions branching from the trunk portion and connected to the busbars, the branch portion includes a base portion, a fixed portion fixed to the busbar, and an intermediate portion extending from the base portion to the fixed portion is the first direction, a first end portion of the trunk portion has a first through-hole, and the case includes a first protrusion and locks the first end portion with the first protrusion to hold the circuit body in a state where the intermediate portion is flexurally deformed.