An arrangement includes an encapsulation housing and a fluid-insulated phase conductor which is disposed within the encapsulation housing, so that an electrically insulating fluid flows around the phase conductor. The phase conductor has a plurality of electrically parallel conductor tracks, at least in some sections. The conductor tracks mutually support each other.

The invention relates to enclosures (1) for gas-insulated medium-voltage or high voltage apparatuses. A connection portion (4) between a first end (20) of the first enclosure tube (2) and a mating machined second end (30) of the second enclosure tube (3) has a gas-escape path (L) running from the inside (6) to the outside (7) of the enclosure tubes (2, 3). According to the invention, the gas-escape path (L1) is shaped to have a first segment (L1) running along an at least partially axial direction of the enclosure (1) and being equipped with least one sealing ring (5; 5a, 5b). In addition, a slim ring-like snap-on bracket (9) can be used. The direct machining of the mating enclosure ends (20, 30) allows to omit conventional flanges. The partially axial orientation of the gas-escape path (L) allows to provide plural sealing rings (5; 5a, 5b) in series in the gas-escape path (L).

The invention relates to a modular and compact arrangement (200) of three phases (A, B, C) of a gas-insulated apparatus (100), that is suitable for placement inside a tunnel or a pipe (106) or another confined space. According to the invention, the three phases (A, B, C) are arranged in a triangle or side-by-side on a fixation part (103, 104) which includes a roller system (105; 105a, 105b, 105c, 105d). This allows the insertion of such a three-phase assembly (100) into confined spaces such as pipes or tunnels (106), without the need for access by workers or machinery. Furthermore, the present disclosure relates to a method for assembling and installing such a three-phase arrangement (100) into the confined space (106).

The disclosure relates to an adaptation module configured for connecting three conductors of two modules and/or bays of a three-phase encapsulated gas-insulated switchgear, including two opposite arranged insulators each including three radially spaced conductor connection inlets and configured for electrically connecting the conductor connection inlets to one of the two modules and/or bays, and three concentrically arranged axially extending conductors each connected to two opposite conductor connection inlets, spaced from each other and rotatable in respect to the axis.

A gas insulated bus includes: a first container including a first flange and forming a sealed space in which an insulating gas is enclosed; a second container including a second flange joined to the first flange and forming the sealed space together with the first container; a conductor housed in the sealed space; and an insulating support supporting the conductor in the sealed space. Part of the second flange is an inner flange including a mounting to which the insulating support is attached. The second container includes an extension portion in a portion in which the inner flange is provided, the extension portion extending toward a side opposite to a central axis of the conductor.

A valve gas filter includes: a valve box attached to a gas enclosing port connected to a gas-insulated device to be filled with an insulating gas and hermetically sealed; and a valve body that opens and closes a gas passage by moving in the valve box, in which the valve body includes a gas filter, which is formed by a porous insulating material and allows passage of an insulating gas but does not allow passage of foreign matter contained in the insulating gas.

A gas-insulated line is provided. The gas-insulated line defines an axial direction and includes an enclosure configured to surround a nominal conductor and a pressurized insulation gas in the enclosure, wherein the enclosure includes: a first attachment point and a second attachment point, the first attachment point and the second attachment point being spaced apart from each other in the axial direction; a rope element fixed between the first attachment point and the second attachment point and loaded with a pretension; and a flexible enclosure element arranged between the first attachment point and the second attachment point.

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 gas insulated bus is provided which comprises a metallic container whose axis is an axis line; a main circuit conductor housed in the metallic container; a metallic container to be connected with an end of the metallic container and whose axis is an axis line crossing the axis line; a main circuit conductor housed in the metallic container; an insulating spacer of a single-leg structure that supports and insulates a connection portion of the main circuit conductors; a metal-made shield attached to the insulating spacer and provided with an opening open in a direction of the axis line and an opening open in a direction of the axis line, the shield covering the connection portion, the shield being substantially in a barrel or spindle shape having an outside diameter exceeding that of the main circuit conductors.

A gas-insulated line is provided. The gas-insulated line defines an axial direction and includes an enclosure configured to surround a nominal conductor and a pressurized insulation gas in the enclosure, wherein the enclosure includes: a first attachment point and a second attachment point, the first attachment point and the second attachment point being spaced apart from each other in the axial direction; a rope element fixed between the first attachment point and the second attachment point and loaded with a pretension; and a flexible enclosure element arranged between the first attachment point and the second attachment point.