| Patent application number | Description | Published |
|---|
| 20090120773 | METHOD FOR QUENCHING A FAULT ARC, WITHIN A MEDIUM-VOLTAGE AND HIGH-VOLTAGE SWITCHGEAR ASSEMBLY, AS WELL AS SHORTING DEVICE ITSELF - The disclosure relates to a method for quenching a fault arc in a medium-voltage and high-voltage switchgear assembly, in which at least one shorting element is connected between the phases of a three-phase distribution board. In order to allow more reliable fault arc quenching in this case, the disclosure proposes that the fault arc is detected by means of sensors and an explosive charge which acts directly on the shorting switching element fires the shorting switching element at a conical contact structure which is connected to the three-phase conductors and is configured in a complementary manner to the shorting switching element, in such a manner that the complementary contours of the shorting switching element and of the three-phase conductors result in self-locking retention in the shorting position, without any holding force. | 05-14-2009 |
| 20090218318 | VACUUM SWITCHING CHAMBER FOR MEDIUM-VOLTAGE SWITCHGEAR ASSEMBLIES - Vacuum switching chamber is disclosed for a medium-voltage switchgear assembly having one or more ceramic cylinder tube sections which are closed both on the fixed-contact side and on the switching-contact side by metallic covers. In order in the process to achieve a situation in which a vacuum switching chamber is further improved in terms of its resistance to external pressure the disclosure proposes providing at least one of the covers, on the inside and/or outside, with an inlay which increases the resulting wall thickness, an outer cover or outer ring, which inlay, outer cover or outer ring rests at least partially cohesively in the cover or on a cover on the outside. | 09-03-2009 |
| 20100108643 | SWITCHING DEVICE WITH A VACUUM INTERRUPTER CHAMBER - The disclosure relates to a switching device with a vacuum interrupter chamber in which at least one moving contact piece is arranged. To considerably increase the switching rating and the dielectric strength, the disclosure proposes that two series-connected contact arrangements with a total of two contact levels which can be opened are arranged within a vacuum interrupter chamber. | 05-06-2010 |
| 20100129254 | METHOD FOR PRODUCTION OF A CONTACT PIECE FOR A SWITCHGEAR ASSEMBLY, AS WELL AS A CONTACT PIECE ITSELF - The disclosure relates to a method for production of a component, such as a contact piece, for a switchgear assembly. To introduce a slot and apply a contact outer contour directly during the powder-metallurgical production process of the contact material, contouring in the form of a slot or slots is introduced into the powder-metal material, which is located in a mold, essentially in a direction parallel to a normal to a surface of the component, to form the component with a slot. | 05-27-2010 |
| 20100155371 | SHORT-CIRCUIT DEVICE FOR MEDIUM AND HIGH-VOLTAGE SWITCHING DEVICES - A short-circuit device is provided for medium and high-voltage switching devices, in which at least one moving contact is moved onto a fixed contact by means of a propelling charge. Two contact arrangements are provided in series to provide a higher dielectric strength. Each of the contact arrangements includes a fixed contact and a moving contact. A first fixed contact of a first one of the contact arrangements contains a mechanical ignition device for providing a propelling charge to a moving contact of the second one of the contact arrangements, such that when the moving contact reaches the fixed contact of the first contact arrangement, the propelling charge is mechanically ignited to cause the moving contact of the second contact arrangement to be propelled toward the fixed contact of the second contact arrangement. | 06-24-2010 |
| 20100181182 | BREAKER WITH A GAS DRIVE FOR LOW-VOLTAGE, MEDIUM-VOLTAGE AND HIGH-VOLTAGE SWITCHING DEVICES - An exemplary breaker is disclosed with a gas drive for low-voltage, medium-voltage and high-voltage switching devices, in which disconnection can be generated via detonation capsules. To ensure that a low number of connection and disconnection operations in relation to the total operating duration of the circuit breaker is taken into consideration in design terms, without in the process reducing safety, exemplary embodiments include a piston/cylinder arrangement with a plurality of detonation capsules for generating a limited number of connection and disconnection operations in the cylinder in each of the two cylinder subareas which are separated by the piston. | 07-22-2010 |
| 20100181291 | POLE PART OF A MEDIUM-VOLTAGE SWITCHING DEVICE - The present disclosure provides a pole part of a low-voltage, medium-voltage and/or high-voltage switching device. The pole part includes a vacuum interrupter chamber having a fixed contact and a movable contact, which includes an electrical contact piece. The vacuum interrupt chamber is cast into an insulating material. The insulating material has opening at the bottom in at least one of a region of the movable contact and a drive rod driving that drives the movable contact. To reduce the heating of the pole part to enable production of a higher rated current carrying capacity, in the region of the movable contact and/or the articulation point of the drive rod, at least one ventilation opening is formed to pass through at least one of an exterior wall of the insulation, a boundary zone between the insulation and the electrical connection piece, and the electrical connection piece. | 07-22-2010 |
| 20100206848 | METHOD FOR PRODUCTION OF A POLE PART OF A MEDIUM-VOLTAGE SWITCHING DEVICE, AS WELL AS THE POLE PART ITSELF - A method for production of a pole part of a medium-voltage switching device, and a pole part are provided. To obviate costly pressure reinforcements at least on the switching contact side of the vacuum interrupt chamber in the area of the mold core, while also achieving an optimum injection-molded result, a compensation ring is positioned, before the encapsulation process, as a separate injection-molded seal on or close to the external circumferential line of a vacuum interrupt chamber cover, between the lower cover of the vacuum interrupt chamber and the mold core. The positioned compensation ring is also encapsulated so as to remain in the encapsulation, and the mold core is then removed. | 08-19-2010 |
| 20100219162 | LOW-VOLTAGE, MEDIUM-VOLTAGE OR HIGH-VOLTAGE SWITCHGEAR ASSEMBLY HAVING A SHORT-CIRCUITING SYSTEM - A switchgear assembly includes a vacuum interrupt chamber and a short-circuiting system arranged in the vacuum interrupt chamber. To enable rapid switching with physically simple means, a vacuum area of the vacuum interrupt chamber in which a fixed contact piece is placed is subdivided via a membrane, which is provided with a breaking line and which can be penetrated by a moving piston system to the contact piece during switching. The switchgear assembly can be utilized in a low-voltage, medium-voltage or high-voltage assembly. | 09-02-2010 |
| 20100300852 | LOW-VOLTAGE, MEDIUM-VOLTAGE OR HIGH-VOLTAGE SWITCHGEAR ASSEMBLY WITH AT LEAST ONE MOVEABLE CONTACT - An exemplary switchgear assembly is disclosed with at least one moveable contact piece, in which the moveable contact is connected to a connection piece electrically with a flexible connection means. A connection between the connector strip and the connection piece of the pole part is provided. The connection can have relatively low electrical and thermal resistance. A flexible connection means is connected to the connection piece directly or with an intermediate piece, which can be connected to the connection piece, cohesively or at least unreleasably. | 12-02-2010 |
| 20110120976 | POLE PART OF A MEDIUM-VOLTAGE OR HIGH-VOLTAGE SWITCH GEAR ASSEMBLY, AND METHOD FOR ITS PRODUCTION - A pole part of a switchgear assembly having a vacuum interrupter chamber is provided. To ensure that heat is dissipated to the exterior for convection, a thermally conductive heat transmission element in the form of a cylindrical casing is provided between the vacuum interrupter chamber, a contact holder and an encapsulation casing. An inner surface of the heat transmission element rests on the vacuum interrupter chamber and the contact holder, and an outer surface of the heat transmission element rests on an inner surface of the encapsulation casing inner surface. The heat transmission element can be produced from a thermally conductive plastic using an injection-molding or molding-compound production process. The heat transmission element can be connected to the pole part through openings. The heat transmission element can be arranged before the encapsulation of with an encapsulation compound, and be cast in the encapsulation casing. | 05-26-2011 |
| 20110163070 | LOW-VOLTAGE, MEDIUM-VOLTAGE OR HIGH-VOLTAGE ASSEMBLY - The disclosure relates to a voltage assembly having at least one short circuiting device in which a moving contact piece can be closed onto a fixed contact piece. In order to prevent breakdown at least two separated vacuum zones are arranged along a moving path of the fixed contact piece. | 07-07-2011 |
