公开(公告)号：US20210405115A1

公开(公告)日：2021-12-30

申请号：US17355211

申请日：2021-06-23

Applicant: ABB Schweiz AG

Inventor： Alexander Graf ,  Stefan Wildermuth ,  Holger Reutner ,  Thomas Stahl ,  Sebastian Breisch ,  Simon Penner

IPC: G01R31/327

Abstract: A contact measurement system for measuring a parameter of a contact of a switchgear includes: a first device for measuring an electrical resistance of the contact and mapping the electrical resistance spatially and/or dynamically; a second device for measuring an axial force of the contact and to map the axial force spatially and/or dynamically as a measured axial force; and a third device for measuring a position of the contact. The contact measurement system determines a position-depending force characteristic based on the measured axial force of the contact and the position of the contact. The contact measurement system determines a status of the contact based on a combination of the position-depending force characteristic with the electrical resistance of the contact.

公开(公告)号：US10777980B2

公开(公告)日：2020-09-15

申请号：US16576821

申请日：2019-09-20

Applicant: ABB Schweiz AG

Inventor： Alexander Graf

IPC: H02B11/24 ,  H01H1/58

Abstract: A switchgear contact device includes at least one first contact element and at least one second contact element which can be slid inside each other in a positive-locking manner, such that they can be connected to each other in an electrically conductive manner in order to create an electrically conductive connection. The at least one first contact element includes a first cup-like contact sleeve and the at least one second contact element includes a contact pin that is surrounded by a hollow cylinder-like enclosure and is centrally arranged therein. A peripheral free area is provided between the contact pin and the enclosure which can be closed on the front side by an annular stop on which a force is exerted and which is arranged such that it is displaceable in the axial direction of the contact pin.

公开(公告)号：US20210287867A1

公开(公告)日：2021-09-16

申请号：US17195675

申请日：2021-03-09

Applicant: ABB Schweiz AG

Inventor： Alexander Graf ,  Ivan Cirovic

IPC: H01H71/02 ,  H02B1/46 ,  H01H71/08 ,  H02B1/20

Abstract: A protection device for an electrical apparatus to realize a degree of protection includes: a front part, which has a cutout, through which a partially insulated cable or bar is insertable; and a rear part, from which the non-insulated part of the cable or bar is extendable into an interior of the electrical apparatus. A channel passes through the front part and the rear part. A stop is arranged within the channel, on which the insulation jacket of the insulated part of a cable or bar may abut.

公开(公告)号：US11668753B2

公开(公告)日：2023-06-06

申请号：US17355211

申请日：2021-06-23

Applicant: ABB Schweiz AG

Inventor： Alexander Graf ,  Stefan Wildermuth ,  Holger Reutner ,  Thomas Stahl ,  Sebastian Breisch ,  Simon Penner

IPC: G01R31/327

CPC classification number: G01R31/3274

Abstract: A contact measurement system for measuring a parameter of a contact of a switchgear includes: a first device for measuring an electrical resistance of the contact and mapping the electrical resistance spatially and/or dynamically; a second device for measuring an axial force of the contact and to map the axial force spatially and/or dynamically as a measured axial force; and a third device for measuring a position of the contact. The contact measurement system determines a position-depending force characteristic based on the measured axial force of the contact and the position of the contact. The contact measurement system determines a status of the contact based on a combination of the position-depending force characteristic with the electrical resistance of the contact.

公开(公告)号：US20200014179A1

公开(公告)日：2020-01-09

申请号：US16576821

申请日：2019-09-20

Applicant: ABB Schweiz AG

Inventor： Alexander Graf

IPC: H02B11/24 ,  H01H1/58

Abstract: A switchgear contact device includes at least one first contact element and at least one second contact element which can be slid inside each other in a positive-locking manner, such that they can be connected to each other in an electrically conductive manner in order to create an electrically conductive connection. The at least one first contact element includes a first cup-like contact sleeve and the at least one second contact element includes a contact pin that is surrounded by a hollow cylinder-like enclosure and is centrally arranged therein. A peripheral free area is provided between the contact pin and the enclosure which can be closed on the front side by an annular stop on which a force is exerted and which is arranged such that it is displaceable in the axial direction of the contact pin.