Vacuum interrupter with one movable contact

    公开(公告)号:US10553372B2

    公开(公告)日:2020-02-04

    申请号:US15960578

    申请日:2018-04-24

    Applicant: ABB Schweiz AG

    Inventor: Dietmar Gentsch

    Abstract: A vacuum interrupter includes: one movable contact fixed on a movable contact stem; and one fixed contact with a fixed contact stem. The fixed contact and the movable contact are located in a electrically insulating tube, which is vacuumtightly closed by metal lids at boths sides. The fixed contact stem is placed vacuumtightly on one of the metal lids, and the movable contact stem is guided trough an opening of the opposite metal lid via an axially extendable vacuumtight bellow. In order to create a twist protection of the movable contact stem, a ring disc shaped plastic part with a central opening, through which the movable contact stem is guided, is connected externally to the vacuum interrupter such that inner spanner flats inside the opening complementarily fit closely to external spanner flats of the movable contact stem.

    Pressure resistant housing for subsea applications

    公开(公告)号:US10109445B2

    公开(公告)日:2018-10-23

    申请号:US15375643

    申请日:2016-12-12

    Applicant: ABB Schweiz AG

    Abstract: A pressure resistant housing for an electric component, which pressure resistant housing is adapted for use in subsea applications. The pressure resistant housing includes a first ceramic body arranged to accommodate the electric component, which first ceramic body is provided with a first opening and a second opening, a first metal lid for closing the first opening, a first annular sealing member arranged to provide a fluid tight seal between the first metal lid and the first opening, a first clamp arranged to clamp the first metal lid to the first ceramic body, a second metal lid for closing the second opening, a second annular sealing member arranged to provide a fluid tight seal between the second metal lid and the second opening, and a second clamp arranged to clamp the second metal lid to the first ceramic body.

    Electrical connection for medium and high voltage switchgears

    公开(公告)号:US10014597B2

    公开(公告)日:2018-07-03

    申请号:US15607691

    申请日:2017-05-30

    Applicant: ABB Schweiz AG

    CPC classification number: H01R4/56 H01R13/03 H01R13/207 H01R13/6215

    Abstract: An electrical connection for medium and high voltage switchgears, with an electrical terminal of a switchgear, wherein an electrical contacting surface of the electrical terminal is electrically connected with a contacting surface of an external electrical connector part via a connecting system. In order to ensure a low resistance electrical connection, the connecting system can have a female screw thread in a stud hole of the electrical terminal as well as in a stud hole of the external connector part, and a stretch bolt with male screw threads at each opposite ends, screwed into the female screw thread of the electrical terminal with one end of the stretch bolt, and into the female screw thread of the external connector part at the other end of the stretch bolt.

    POLE PART FOR HIGH PRESSURE ENVIRONMENT APPLICATION

    公开(公告)号:US20170186574A1

    公开(公告)日:2017-06-29

    申请号:US15455219

    申请日:2017-03-10

    Applicant: ABB Schweiz AG

    Abstract: A pole part for high pressure environment application, with a pressure resistant insulating housing in which a vacuum interrupter is installed, wherein the vacuum interrupter is provided with at least one moving contact and one fixed contact inside the vacuum interrupter. In order to create a pole part able to withstand high environmental pressure, a pressure resistant insulating body can be tubelike and at its ends provided with flanges formed at the insulating housing out of the same material, and that at least one of the flanges is closed with a metal cap, which is adapted to the aforesaid flange of the insulating housing by the same dimensions, and that with clamp the metal cap is pressed tightly on the flange of the insulating housing by the introduced clamping fixation force.

Patent Agency Ranking