Patent classifications
H02G15/068
Device comprising a space charge trapping layer
The present invention relates to a device comprising at least one electrical cable (10a, 10b, and 10c) for transporting DC current, said electrical cable comprising an elongate electrical conductor (11a, 11b, and 11c) surrounded by at least one first semiconducting layer (12c), an electrically insulating layer (13a, 13b and 13c) surrounding the first semiconducting layer and a second semiconducting layer (14a, 14b and 14c) surrounding the electrically insulating layer, characterized in that the electrical cable (10a, 10b, and 10c) furthermore comprises a space charge trapping layer (15a, 15b, and 15c) obtained on the basis of a polymeric composition comprising at least one organic polymer and at least one linear filler, the space charge trapping layer (15a, 15b, and 15c) replacing at least in part the second semiconducting layer (14a, 14b, and 14c) of the electrical cable, so that the space charge trapping layer is in physical contact with the electrically insulating layer (13a, 13b, and 13c) of the electrical cable.
Device comprising a space charge trapping layer
The present invention relates to a device comprising at least one electrical cable (10a, 10b, and 10c) for transporting DC current, said electrical cable comprising an elongate electrical conductor (11a, 11b, and 11c) surrounded by at least one first semiconducting layer (12c), an electrically insulating layer (13a, 13b and 13c) surrounding the first semiconducting layer and a second semiconducting layer (14a, 14b and 14c) surrounding the electrically insulating layer, characterized in that the electrical cable (10a, 10b, and 10c) furthermore comprises a space charge trapping layer (15a, 15b, and 15c) obtained on the basis of a polymeric composition comprising at least one organic polymer and at least one linear filler, the space charge trapping layer (15a, 15b, and 15c) replacing at least in part the second semiconducting layer (14a, 14b, and 14c) of the electrical cable, so that the space charge trapping layer is in physical contact with the electrically insulating layer (13a, 13b, and 13c) of the electrical cable.
ELECTRIC FIELD CONTROL DEVICE FOR HIGH POWER CABLE AND METHOD FOR MANUFACTURING THEREOF
An electric field control device for a high voltage cable includes a stress cone and a field grading adapter, wherein the stress cone and the field grading adapter are chemically bonded by vulcanization. An electric installation includes a power cable and the electric field control device. A method for producing the electric field control device is also disclosed.
ELECTRIC FIELD CONTROL DEVICE FOR HIGH POWER CABLE AND METHOD FOR MANUFACTURING THEREOF
An electric field control device for a high voltage cable includes a stress cone and a field grading adapter, wherein the stress cone and the field grading adapter are chemically bonded by vulcanization. An electric installation includes a power cable and the electric field control device. A method for producing the electric field control device is also disclosed.
Power cable terminal connection device
A terminal connection device comprises a contiguous body disposed onto an inner conductor. The inner conductor includes a first end mateable with a power cable connector and a second end. The body comprises a multilayer structure having an inner conductive or semiconductive layer disposed over at least a portion of the power cable connector, an insulating layer and an outer conductive or semiconductive layer. The body surrounds the first end of the inner conductor and extending towards the second end of the inner conductor. The body can also include an electrically isolated section of conductive or semiconductive material. The terminal connection device can be a fully integrated structure, having a pre-installed connection interface, or the terminal connection device can be configured as an adapter which can be mounted in the field to a connection interface.
Power cable terminal connection device
A terminal connection device comprises a contiguous body disposed onto an inner conductor. The inner conductor includes a first end mateable with a power cable connector and a second end. The body comprises a multilayer structure having an inner conductive or semiconductive layer disposed over at least a portion of the power cable connector, an insulating layer and an outer conductive or semiconductive layer. The body surrounds the first end of the inner conductor and extending towards the second end of the inner conductor. The body can also include an electrically isolated section of conductive or semiconductive material. The terminal connection device can be a fully integrated structure, having a pre-installed connection interface, or the terminal connection device can be configured as an adapter which can be mounted in the field to a connection interface.
POWER CABLE HAVING END CONNECTING PORTION
The present invention is to provide a power cable with a termination connection box, in which the occurrence of heterojunction interfaces between the power cable and the termination connection box are reduced to prevent accumulation of space charges and an electric field may be mitigated.
POWER CABLE HAVING END CONNECTING PORTION
The present invention is to provide a power cable with a termination connection box, in which the occurrence of heterojunction interfaces between the power cable and the termination connection box are reduced to prevent accumulation of space charges and an electric field may be mitigated.
Detachable snap-in fitting
Disclosed is a fitting having a main body including a distal end and a proximal end, and a first split ring coupled to the distal end of the main body, wherein the first split ring includes an opening for receiving a main tab along an outer surface of the main body, and wherein the first split ring includes a set of disengagement tabs on opposite sides of a slot. The fitting may further include a second split ring within an interior of the main body, wherein the second split ring comprises a set of interior arms operable to engage a sheath of a cable.
Detachable snap-in fitting
Disclosed is a fitting having a main body including a distal end and a proximal end, and a first split ring coupled to the distal end of the main body, wherein the first split ring includes an opening for receiving a main tab along an outer surface of the main body, and wherein the first split ring includes a set of disengagement tabs on opposite sides of a slot. The fitting may further include a second split ring within an interior of the main body, wherein the second split ring comprises a set of interior arms operable to engage a sheath of a cable.