公开(公告)号：US20230018694A1

公开(公告)日：2023-01-19

申请号：US17957066

申请日：2022-09-30

Applicant: ABB Schweiz AG

Inventor： Michael Kessler ,  Adrian Stadnicki ,  Oleksandr Sologubenko ,  Olaf Fussbahn ,  Oliver Claus

IPC: H05K7/20 ,  F28D15/02 ,  H02B1/56

Abstract: A cooling apparatus for a medium voltage switchgear includes an evaporator section; a fluid conduit; and a condenser section. The evaporator section surrounds a current carrying contact and is configured such that fluid within the evaporator section can contact an outer surface of the current carrying contact. The evaporator section is fluidly connected to the fluid conduit. At least part of the evaporator section is electrically insulating and is connected to the fluid conduit. The fluid conduit is fluidly connected to the condenser section. In use, a working fluid in the evaporator section is heated to a vapor state, the vapor is transferred by the fluid conduit to the condenser section, and the vapor in the condenser section is condensed to the working fluid. The working fluid is passively returned to the evaporator section.