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

IPC: H01H33/70 ,  H01H33/74 ,  H01H33/91 ,  H02G5/06

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.

公开(公告)号：US09543087B2

公开(公告)日：2017-01-10

申请号：US14711254

申请日：2015-05-13

Applicant: ABB Schweiz AG

Inventor： Francesco Pisu ,  Jadran Kostovic ,  Sami Kotilainen ,  Timothy Sutherland

IPC: H01H9/38 ,  H01H1/38 ,  H01H1/44 ,  H01H1/46 ,  H01H1/50

CPC classification number: H01H9/386 ,  H01H1/38 ,  H01H1/44 ,  H01H1/46 ,  H01H1/50

Abstract: An electrical switching device including at least a nominal contact arrangement, the nominal contact arrangement at least a first nominal contact with a plurality of nominal contact fingers forming a finger cage concentric with respect to a longitudinal axis (z), and at least a mating second nominal contact. An arcing contact arrangement including a first arcing contact and a mating second arcing contact. An arcing contact finger including at its free end a first impact area in which a first contacting to the second arcing contact occurs when closing, the electrical switching device. The first impact area is formed by a first planar surface arranged at an inclination angle (α) larger than zero degrees with respect to the longitudinal axis (z).

Abstract translation: 一种电气开关装置，包括至少一个标称触点装置，该标称触点布置至少一个第一标称触点与多个标称接触指形成相对于纵向轴线（z）同心的手指笼，以及至少一个配合的第二 名义接触 一种电弧触头装置，包括第一电弧触点和配合的第二电弧触点。 电弧触头在其自由端处包括第一冲击区域，在关闭时第一冲击区域与第二电弧触点发生第一接触，电开关装置。 第一冲击区域由相对于纵向轴线（z）以大于零度的倾斜角（α）布置的第一平面形成。

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

IPC: H01H33/70 ,  H01H33/74 ,  H01H33/91 ,  H01H33/88 ,  H01H9/52 ,  H02G5/06

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.

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.