Asea Brown Boveri Ag

Abb Schweiz Ag

Jochen Rees

Horst Gruning

Bjorn Odegard

Philippe Maibach

Markus Keller

Peter Maier

Sven Klaka

Thomas Keller

Nürten Halavart

Alexander Klett

Alexander Stoev

The disclosure specifies a fixing device for a current sensor, which fixing device comprises a holding element which is shaped in the manner of a U and a surface part which is connected to the free end of a limb of the holding element, with the surface part being arranged substantially perpendicular to the connected limb and extending away from the opening in the holding element. The fixing device also comprises a retaining element which is connected to the surface part and is shaped in the manner of a C, with the orientation of the opening in the retaining element corresponding substantially to the orientation of the opening in the holding element. By means of the fixing device for a current sensor, mounting can be simplified, carried out more quickly and performed in a manner which is less susceptible to faults.

Fixing device for a current sensor

A holding device for at least one electronic component ( ) which is made up of a first plate-shaped leg ( ) and a second plate-shaped leg ( ) is specified, the two legs ( ) being connected to each other at one of their leg ends and forming in relation to each other a substantially orthogonal angle, the first leg ( ) and the second leg ( ) in each case having a leg inner wall ( ) facing the substantially orthogonal angle, the leg inner wall ( ) of the first leg ( ) having a receiving surface ( ) for the resting of a lateral surface part of the electronic component ( ) and the leg inner wall ( ) of the second leg ( ) having at least one pressing surface ( ) for the surface-area contacting of a surface part of the component ( ) comprising an electrical terminal.

Holding device for an electronic component

An insulator is specified for an electrical busbar system having at least one rail ( ), which is in the form of an integral axially symmetrical body ( ) and has a hole ( ) along the axis of symmetry ( ), with a mounting surface ( ), which is vertically at a distance from the hole ( ) and extends radially as far as the rim region of the body ( ), being provided on each of the end faces of the body ( ) with respect to the axis of symmetry ( ), in order to make flat contact with a rail ( ). Furthermore, an essentially ribbed first surface ( ) extends in the radial direction between the hole ( ) and the mounting surface ( ). Furthermore, an insulator system having at least two insulators is disclosed.

Insulator for an electrical busbar system, as well as an insulator system having such insulators

A semiconductor component including a housing for a semiconductor substrate, an anode, a cathode, an annular gate electrode flange, which laterally protrudes from the housing and concentrically surrounds the housing, and an annular auxiliary cathode flange, which protrudes from the housing and makes contact with the cathode.

Gate controlled thyristor driven with low-inductance

A converter with a DC voltage intermediate circuit and including a rectifier circuit having an AC voltage input and a DC voltage output, which rectifier circuit can be connected to a power supply system, an invertor circuit having a DC voltage input and an AC voltage output, and a DC voltage intermediate circuit, which is arranged between the DC voltage output of the rectifier circuit and the DC voltage input of the invertor circuit. Also included is two connecting lines, leading from the DC voltage output of the rectifier circuit to the DC voltage input of the invertor circuit, and at least one intermediate circuit capacitor arranged between the connecting lines. A simplified structure is achieved by virtue of the fact that in order to protect the converter in the event of a short circuit, a first controllable semiconductor switch is arranged in at least one of the connecting lines between the DC voltage output of the rectifier circuit and the at least one intermediate circuit capacitor.

Converter with DC voltage intermediate circuit and method for operating

A converter circuit arrangement is specified having a rectifier, an intermediate circuit and an invertor connected thereto. In order to protect the circuit against failures and overvoltage, a protection circuit which comprises, in particular, varistors is connected between the two partial rectifiers of the rectifier.

Converter circuit arrangement with protection circuit

In order to reduce the commutation inductance of series-connected controllable semiconductor components (V1-V6), the latter are connected, in an essentially orthogonal manner and at a predeterminable distance (a), via spur double striplines (6, 6') to essentially planar main lines (5, 5'). All of the double striplines (5, 5'; 6, 6') have a layered structure and are mutually insulated by a thin insulating layer (7), with the result that a minimum current area is achieved. The controllable semiconductor components (V1-V6) are accommodated closely adjacent to freewheeling diodes in a module (10), the heat of which can be dissipated by cooling elements (8). Bipolar transistors having an insulated gate (IGBTs) are preferably used as controllable semiconductor components (V1-V6).

Current conductor arrangement

A converter circuit arrangement is disclosed. As a result of the fact that GTOs are hard driven, reverse-parallel connected diodes have a reverse current response dV/dt of 2 kV/.mu.s to 10 kV/.mu.s and a low-inductance freewheeling circuit is provided between the DC voltage source and the GTOs, the GTOs and the reverse-parallel connected diodes can be operated without a protective circuit.

Growing community of inventors

Waldshut-Tiengen, Germany

Jochen Rees