公开(公告)号：US20240170950A1

公开(公告)日：2024-05-23

申请号：US18504945

申请日：2023-11-08

Applicant: ABB Schweiz AG

Inventor： David Schaeffer ,  Kalle Huju ,  Manfred Sievers ,  Elisabeth Lindell ,  Simo Poyhonen ,  Jesper Magnusson ,  Marley Becerra

IPC: H02H7/26 ,  H01H33/59

CPC classification number: H02H7/268 ,  H01H33/596

Abstract: A drive system including: a DC bus, a plurality of power electronics devices, each including a capacitor, each power electronics device being connected to the DC bus in parallel with the other power electronics devices, and a plurality of arc suppressing devices, each being configured to short circuit the DC bus in case of an arcing fault on the DC bus.

公开(公告)号：US09805888B2

公开(公告)日：2017-10-31

申请号：US15308038

申请日：2014-05-19

Applicant: ABB Schweiz AG

Inventor： Marley Becerra ,  Stefan Valdemarsson ,  Maurizio Curnis ,  Alessio Bergamini ,  Henrik Breder

IPC: H01H53/00 ,  H01H33/28 ,  H01H3/22 ,  H01H71/42 ,  H01H71/43

CPC classification number: H01H33/285 ,  H01H3/222 ,  H01H71/42 ,  H01H71/43

Abstract: An electrical switchgear for fast limitation and interruption of fault currents includes a fixed electrode, a movable electrode having a contact portion and a repelling portion, a plurality of contact fingers, and a coil. The coil is arranged adjacent to the repelling portion to induce eddy currents therein, the coil and the fixed electrode being arranged on the same side of the movable electrode, and the repelling portion being movable relative to the coil. The coil has a first dimension between two of its opposite lateral ends and defines an area which corresponds to a majority of a surface area of the repelling portion. The repelling portion provides a continuous current path, having a dimension corresponding to the first dimension, for eddy currents induced by the coil, whereby the movable electrode is pivotally thrown in a direction away from the coil and the fixed electrode, thus providing a circuit trip.

公开(公告)号：US20170084410A1

公开(公告)日：2017-03-23

申请号：US15308038

申请日：2014-05-19

Applicant: ABB SCHWEIZ AG

Inventor： Marley Becerra ,  Stefan Valdemarsson ,  Maurizio Curnis ,  Alessio Bergamini ,  Henrik Breder

IPC: H01H33/28 ,  H01H71/43 ,  H01H3/22

CPC classification number: H01H33/285 ,  H01H3/222 ,  H01H71/42 ,  H01H71/43

Abstract: An electrical switchgear for fast limitation and interruption of fault currents. The electrical switchgear which includes a plurality of contact fingers arranged to divide current flowing through the electrical switchgear.