Abb Schweiz Ag

Abb Technology Ag

Abb S.p.a.

Abb Power Grids Switzerland Ag

Francoise Molitor

Patrik Reto Kaufmann

Klaus Kraft

Tilo Buehler

Oleksandr Sologubenko

Libor Vitek

Jindrich Janos

Thomas Gradinger

Francesco Agostini

Federico Gamba

Maciej Mruczek

Hans-Juergen Schmitt

Ulrich Straumann

Uwe Riechert

Markus Kesberger

Robin Gremaud

Malte Tschentscher

An arrangement for electrically connecting a circuit breaker to a laminated busbar in a switch gear cabinet in which the circuit breaker has at least one terminal to be contacted by a connecting bar and in which the laminated busbar includes at least one conducting layer for conducting electric current which is covered by adjoining insulating layers attached thereto, the arrangement including: a first cylindrical connecting element and a second cylindrical connecting element which are arranged at a distance to each other at the conducting layer and project away from the conducting layer; an electrically conducting distribution bar which is mounted to free end portions of the first and second cylindrical connecting elements; and a terminal member which is mounted to the distribution bar at a center between the first and second cylindrical connecting elements. The terminal member is to be contacted by the connecting bar.

Arrangement for connecting a circuit breaker to a conducting layer of a laminated busbar and switchgear comprising such an arrangement

A coupling element for electrically coupling a lateral connecting portion of a first laminated busbar to a lateral connecting portion of a second laminated busbar, the coupling element having a base body that includes a sandwich of conducting layers of sheet metal and intermediate insulating layers arranged in between the conducting layers for electrically insulating the conducting layers from each other. Each of the conducting layers includes a first layer section that is associated to the lateral connecting portion of the first busbar and a second layer section that is associated to the connecting portion of the second busbar. The first and second layer sections are electrically insulated from each other by an insulating element and each of the first layer sections includes a first circuit breaker connecting terminal that is adapted to be electrically connected to an input terminal of a circuit breaker.

Laminated busbars and direct connection of air circuit breakers in bus coupler sections

An arrangement includes: a module insertable into a housing or removable from a housing; and a slide-in compartment for receiving the module. The module is reversibly removable from the slide-in compartment. At least one side wall and/or a compartment rear wall and/or a compartment base of the slide-in compartment in an inserted state of the module forms or form a side wall and/or rear wall and/or a base wall and/or a roof of at least one module.

Arrangement comprising a compartment and a slide-in module

A cooling system includes an evaporator associated with a heat source. A condenser is located at a higher elevation than the evaporator. A heat pipe structure fluidly connects the evaporator with the condenser. A fan forces air through the condenser. A working fluid is in the evaporator so as to be heated to a vapor state, with the heat pipe structure transferring the vapor to the condenser and passively returning condensed working fluid back to the evaporator for cooling of the heat source. A plurality of thermoelectric generators is associated with the condenser and converts heat, obtained from the working fluid in the vapor state, to electrical energy to power the fan absent an external power source. The thermoelectric generators provide the electrical energy to the fan so that a rotational speed of the fan is automatically self-regulating to either increase or decrease based on a varying heat load.

Switchgear cooling system comprising a heat pipe, fan and thermoelectric generation

Cooling apparatus cooling for an electrical or electronic device, comprising an at least partially hollow body containing a refrigerant and having a plurality of electrically conductive sections Each electrically conductive section has a respective coupling portion suitable to be operatively associated with a corresponding electrically conductive part of the electrical or electronic device, wherein the at least partially hollow body further comprises one or more electrically insulating sections. Each electrically insulating section is positioned between and electrically insulates from each other two adjacent electrically conductive sections.

Cooling apparatus for an electrical or electronic device, and electrical or electronic device, in particular a circuit breaker, comprising such cooling apparatus

A cooling apparatus is provided for a switchgear having at least one primary contact to connect to a terminal of a circuit breaker, with a busbar joint connected to the primary contact. The cooling apparatus includes an evaporator associated with the primary contact. A condenser is located at a higher elevation than the evaporator. Heat pipe structure fluidly connects the evaporator with the condenser. Heat transfer structure is coupled with the busbar joint for removing heat from the busbar joint. Working fluid is in the evaporator so as to be heated to a vapor state, with the heat pipe structure transferring the vapor to the condenser and passively returning condensed working fluid back to the evaporator for cooling the at least one primary contact.

Cooling apparatus for switchgear with enhanced busbar joint cooling

Growing community of inventors

Zurich, Switzerland

Francoise Molitor