公开(公告)号：EP3402027A1

公开(公告)日：2018-11-14

申请号：EP18170156.6

申请日：2018-04-30

Applicant: ABB Schweiz AG

Inventor： Gremaud, Robin ,  Donzel, Lise ,  Erford, Tobias

IPC: H02G5/06

CPC classification number: H02G5/066 ,  H02G5/068

Abstract: The disclosure relates to a high-voltage insulator (100) for insulation of a DC conductor of a gas-insulated electrical system, and to a gas-insulated electrical system comprising a high-voltage insulator.
The high-voltage insulator (100) comprises an insulator body (50) and an insulator surface (51), wherein the electrical conductivity of the insulator surface (51) is higher than the electrical conductivity of the insulator body (50); and a contacting element (30). The contacting element (30) comprises an insulator side face (31) having a first height (hres) for connecting a predetermined length of the insulator surface (51) to a definite potential, the contacting element (30) further extending by a total width (w) in a width direction away from the insulator surface (51) up to an end face (32). A second height (hend) of the contacting element (30) at the end face (32) is lower than the first height (hres).

公开(公告)号：EP3567621A1

公开(公告)日：2019-11-13

申请号：EP19167882.0

申请日：2019-04-08

Applicant: ABB Schweiz AG

Inventor： Garcia-Ferre, Francisco ,  Schmoelzer, Thomas ,  Jacimovic, Jacim ,  Herrmann, Lorenz ,  Korbel, Jakub ,  Erford, Tobias ,  Saxl, David

IPC: H01H1/36 ,  H01H3/22 ,  H01H9/40 ,  H01H33/14 ,  H01H33/28 ,  H01H33/38

Abstract: An electrical switch assembly (10) comprises a contact element (14, 18) to be moved towards a further contact element (14, 18) for generating an electrical connection; and a drive (16) for moving the contact element (14, 18); wherein the drive (16) comprises a plunger (26) with a connection member (30) interconnected with the contact element (14); wherein the plunger (26) comprises a mechanical structure (34) with a top side (36) to which the connection member (30) is connected, and a bottom side (38) opposite to the top side (36); wherein the drive (16) comprises a Thomson coil (52) for moving the plunger (26) via an electrically conducting top face (48), which is provided on the top side (36) and an electrically conducting bottom face (50), which is provided on the bottom side (38). The mechanical structure (34) comprises at least one channel between the top side (36) and the bottom side (38), the at least one channel extending transverse to a movement direction (D) of the plunger (26). Furthermore, the mechanical structure (34) fills less than 50% of a volume between the top side (36) and the bottom side (38).