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公开(公告)号：US20190035579A1
公开(公告)日：2019-01-31
申请号：US16139912
申请日：2018-09-24
Applicant: ABB Schweiz AG
Inventor： Francesco Pisu , Mahesh Dhotre , Xiangyang Ye , Johan Karl Filip Costyson , Reto Karrer
CPC classification number: H01H33/7023 , H01H33/74 , H01H33/91 , H01H2009/526 , H01H2033/888 , H02G5/065
Abstract: An electric switching device filled with a dielectric insulating medium includes first and second arcing contact, first exhaust volume downstream of first arcing contact and second exhaust volume downstream of second arcing contact. The exhaust volumes includes several first openings in their walls, through which the insulating medium exits into third volume. The third volume is arranged around the first or second exhaust volume and is radially delimited by the wall of the exhaust volumes and by an exterior wall having second openings through which the insulating medium exits the third volume. One baffle device is provided inside third volume such that vortex flow of the insulating medium is generated when it passes the baffle device on its way towards the second openings. Turbulent flow conditions are chosen such that gravitational force allows to trap or contributes to trap particles in the baffle device. The baffle device comprises baffle plates or fins, that are arranged to form cavities for capturing the particles by gravitational force.
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公开(公告)号：US10553378B2
公开(公告)日：2020-02-04
申请号：US16139912
申请日：2018-09-24
Applicant: ABB Schweiz AG
Inventor： Francesco Pisu , Mahesh Dhotre , Xiangyang Ye , Johan Karl Filip Costyson , Reto Karrer
Abstract: An electric switching device filled with a dielectric insulating medium includes first and second arcing contact, first exhaust volume downstream of first arcing contact and second exhaust volume downstream of second arcing contact. The exhaust volumes includes several first openings in their walls, through which the insulating medium exits into third volume. The third volume is arranged around the first or second exhaust volume and is radially delimited by the wall of the exhaust volumes and by an exterior wall having second openings through which the insulating medium exits the third volume. One baffle device is provided inside third volume such that vortex flow of the insulating medium is generated when it passes the baffle device on its way towards the second openings. Turbulent flow conditions are chosen such that gravitational force allows to trap or contributes to trap particles in the baffle device. The baffle device comprises baffle plates or fins, that are arranged to form cavities for capturing the particles by gravitational force.
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公开(公告)号：US09627153B2
公开(公告)日：2017-04-18
申请号：US14079068
申请日：2013-11-13
Applicant: ABB Schweiz AG
Inventor： Francesco Pisu , Helmut Heiermeier , Jadran Kostovic , Jakub Korbel , Luca Lienhard , Reto Karrer , Timothy Sutherland
Abstract: An electrical switching device for medium or high voltage circuits having at least a nominal contact arrangement, wherein the nominal contact arrangement includes at least a first nominal contact including a plurality of contact fingers forming a finger cage concentric with respect to a longitudinal axis, wherein the contact fingers are separated from one another by empty slots extending up to a free end of the contact fingers. The empty slots include first and second empty slots, wherein the second empty slots are shorter than the first empty slots, and wherein the contact fingers are grouped in groups, with the contact fingers of each group being separated by second empty slots and the contact fingers of adjacent groups being separated by first empty slots.
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公开(公告)号：US09627155B2
公开(公告)日：2017-04-18
申请号：US14741074
申请日：2015-06-16
Applicant: ABB Schweiz AG
Inventor： Helmut Heiermeier , Jadran Kostovic , Jakub Korbel , Reto Karrer , Sami Kotilainen , Timothy Sutherland , Brant Suhrie
CPC classification number: H01H3/46 , H01H3/00 , H01H33/64 , H01H33/904 , H01H33/91
Abstract: A contact arrangement has a longitudinal axis and includes a first contact group with a first contact and a second contact and a second contact group with a third contact and a fourth contact. The first contact interacts electrically and mechanically with the third contact, and/or the second contact interacts electrically and mechanically with the fourth contact, for closing and opening the contact arrangement. At least one mechanical coupling is provided for transmitting an actuation force to the second contact group and thereby moving the second contact group. The at least one mechanical coupling is adapted to move the third and the fourth contact in such a way that their speeds differ along at least a portion of a travel path of the third contact or along at least a portion of a travel path of the fourth contact.
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