Abb Schweiz Ag

Abb Ab

Abb Research Ltd.

Asea Brown Boveri Ab

Abb S.p.a.

Erik Johansson

Reinhard A Simon

Gunnar Johansson

Peter Isberg

Per Skytt

Mark Irwin

Darren Dale Tremelling

Stefan Valdemarsson

Felix Greuter

Thomas Liljenberg

Göran Eriksson

Zichi Zhang

Jan Isberg

Hans Bernhoff

Jacim Jacimovic

Pan Min

Ener Salinas

David Karlén

Ara Bissal

Daniel Wäppling

Carina Önneby

Moritz Boehm

Su Zhao

Mats Ekberg

Anders Sunesson

&angst;ke &Ouml;berg

Frederic Tholence

Tomaz Tomse

Anna Andersson

Douglas Getson

Frédéric Tholence

Stefan Valdermarsson

Mats Johansson

Andreas Eriksson

Gunnar Kylander

An armature for an electromagnetic actuator, the armature including an armature body, at least one electrically conductive member configured for cooperation with a magnetic field generator of an electromagnetic actuator, and a connection end configured for connection of the armature to an apparatus operable by an electromagnetic actuator. The armature body also having a cellular structure. The armature may form part of an electromagnetic actuator, which in turn may be a component in a switch device. The armature may be manufactured by an additive manufacturing process.

Armature for electromagnetic actuator, an electromagnetic actuator, a switch device and a method for manufacturing an armature

An electrical DC switching system for extinguishing an electric arc, wherein the electrical DC switching system includes: a contact arrangement having a first contact and a second contact, a current injection circuit including a resonance circuit configured to be connected across the contact arrangement, and a first switch connected to the resonance circuit and to the first contact, wherein the first switch is configured to be switched between an open state and a closed state, wherein in the closed state the first switch is configured to enable an injection current to flow through the resonance circuit in a first flow direction and into the contact arrangement in a direction opposite to a flow direction of a contact arrangement arc current, and an arc chute assembly including a plurality of splitter plates configured to extinguish an electric arc across the first contact and the second contact, wherein each splitter plate of the plurality of splitter plates has a layered configuration including a magnetic layer and two non-magnetic layers.

Electrical DC switching system

Electrical contact system with a first and a second contact (), each having a contact surface (). The first electric contact () has a mesostructured electric contact portion () with a plurality of slots () and ridges () formed between neighboring slots () of the plurality of slots (). These slots () and ridges () extend in a direction running transversely to said switching plane (X-Z) form a plurality of current paths (). The current paths () are inclined to the first contact surface () at a first angle () measuring less than 60 degrees such that an interruption current () flowing through the mesostructured electric contact portion () and through an electric arc () extending in between the first contact surface () after lifting the first contact surface () off the second contact surface () pushes said electric arc () in the direction of the apex of said first angle () from a first position () to a second position ().

Low voltage electrical contact system with enhanced arc blow effect

This application concerns a magnet having a magnet body as well as a method for manufacturing such a magnet. The magnet body has a first region with first magnetic properties and a second region with second magnetic properties that are different to the first properties. Owing to the manufacturing process of the magnet body, the relative location of the first region and the second region within the magnet body is freely predeterminable.

Magnet having regions of different magnetic properties and method for forming such a magnet

An electrical contact tip for switching applications. The contact tip includes a body having a first layer and a second layer. The first layer arranged on the second layer and adapted to come in contact with a corresponding contact tip during switching operations. The first and second layers consist of Ag-composites of one or more elements, compounds or alloys, where the hardness of the first layer is lower than the hardness of the second layer.

Electrical contact tip for switching applications and an electrical switching device

A bushing for an electrical device including an insulating core, where at least a part of the insulating core includes a continuous diffusion barrier with firm adhesion to the insulating core. The bushing is manufactured by coating at least a part of the insulating core with the continuous diffusion barrier.

Bushing

A photoconductive switch comprises a first layer (,), two contact layers (,) arranged on said first layer and connectable to different potentials for applying a voltage thereacross, said first layer being adapted to be conducting upon applying a voltage across said contact layers when exposed to light from an illumination source of an energy high enough for lifting charge carriers from the valence band to the conduction band of the material of said first layer. The illumination source is an excimer lamp, in which unstable electronically excited dimers are formed when a voltage is applied across first and second electrodes (,) separated by a gas or gas mixture. The dimers so formed decompose into two gas atoms while emitting a photon of an energy suitable for lifting charge carriers from the valence band to the conduction band of the material of the first layer.

Photoconductive switch

A switch comprises at least a first layer of a first material and two contact electrodes arranged on opposite sides of the first layer and connectable to different potentials for applying a voltage thereacross. A first layer is adapted to be conducting upon applying a voltage across the contact electrodes when exposed to irradiation through an irradiation source of an energy high enough for lifting charge carriers from the valence band to the conduction band of the first material. The contact electrode arranged on the first side of the first layer is laterally displaced with respect to the contact electrode arranged on the opposite second side of the layer with a lateral distance separating them.

Irradiation controlled switch

A photoconductive switch, having at least a part of a first layer doped with dopants providing substantially no free charge carriers for charge transport between the electrodes at the normal operation temperature of the switch, has the nature of the doping, i.e., concentration, type (n or p). The dopants, varied from the first side to an opposite, second side of the first layer for co-operating with the intensity distribution of the light emitted by an illumination source, strikes the first side versus energy so as to obtain a substantially even creation of free charge carriers throughout the depth of the first layer from the first to the second side when illuminated by the illumination source.

Photoconductive switch with doping adapted to the intensity distribution

Growing community of inventors

Västerås, Sweden

Erik Johansson