公开(公告)号：EP3742461A1

公开(公告)日：2020-11-25

申请号：EP19175434.0

申请日：2019-05-20

Applicant: ABB Schweiz AG

Inventor： Keßler, Michael ,  Sologubenko, Oleksandr ,  Hemrle, Jaroslav ,  Rybak, Andrzej ,  Michalik, Adam

IPC: H01H9/52 ,  H02G5/10 ,  H02B1/56 ,  H01H1/62

Abstract: The present invention relates to a cooling apparatus for a medium voltage or high voltage switchgear, the cooling apparatus comprising:
- an evaporator section;
- a fluid conduit; and
- a condenser section.
The evaporator section is configured to surround at least part of a current carrying contact. The fluid conduit fluidly connects the evaporator section to the condenser section. A section of the fluid conduit is formed within the evaporator section and is electrically insulating and is configured such that fluid can contact an outer surface of the current carrying contact. The cooling apparatus is configured such that in use a working fluid in the evaporator section is heated to a vapour state, and the vapour is transferred by the fluid conduit to the condenser section. The vapour in the condenser section is condensed to the working fluid. The condensed working fluid is passively returned via the fluid conduit to the evaporator section.

公开(公告)号：EP3503321A1

公开(公告)日：2019-06-26

申请号：EP17208681.1

申请日：2017-12-19

Applicant: ABB Schweiz AG

Inventor： Gentsch, Dietmar ,  Keßler, Michael ,  Kopp, Dalibor ,  Reuber, Christian

IPC: H02B13/025 ,  H02B13/045 ,  H02B13/065

Abstract: The invention relates to an inner compartment design for medium voltage gas insulated switchgears, with at least one inner compartment and a housing, according to the preamble of claim 1 In order to enhance the withstand of the inner compartment against destructive light arc impact, considering at the same time high economic effectivity, the invention is, that at the inner compartment, or in case of several inner compartments, at the inner of the inner compartment or enclosure, or at one of the inner compartments, are provided on its inner wall surface, at least partially with an insulating layer.