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

IPC: H01H1/00 ,  H01H9/00 ,  H01H1/38

CPC classification number: H01H1/00 ,  H01H1/385

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.

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

IPC: H01H3/46 ,  H01H3/00 ,  H01H33/90 ,  H01H33/64 ,  H01H33/91

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.