Abstract:
Die Erfindung betrifft eine elektrische Kontaktanordnung, insbesondere für Mittelspannungsanlagen, bei welchen Kontaktelemente (1, 2) miteinander verbindbar sind, sowie ein Verfahren zur Herstellung einer solchen Kontaktanordnung. Um hierbei die Kontaktierung erheblich zu verbessern ist erfindungsgemäß vorgeschlagen, dass von den beiden miteinander zu verbindenden Kontaktelementen (1, 2) in Relation zueinander ein Kontaktelement (2) aus einem weicheren und das andere Kontaktelement (1) aus einem härteren Werkstoff besteht.
Abstract:
Die Erfindung betrifft ein Verfahren zur Herstellung eines Kontaktstückes, sowie Kontaktstücks für Nieder-, Mittel-, Hochspannungs- und Generatorschaltgeräte, gemäß Oberbegriff der Patentansprüche 1 und 11. Um hierbei ein Herstellverfahren für Kontaktstücke der gattungsgemäßen Art noch wirtschaftlicher zu gestalten, ist erfindungsgemäß vorgeschlagen, dass im Kokillenguss-Herstellungsprozess das Kontaktstück endkonturnah gegossen wird, indem zunächst der Werkstoff in einem Tiegel geschmolzen und anschließend in eine metallische Kokille gegossen wird, in welche zuvor Stege eingebracht werden, wobei die Stege Schlitze hinterlassen.
Abstract:
Die Erfindung betrifft eine Mittelspannungsschaltanlage mit mindestens einem Trennschalter, deren Antrieb innerhalb und oder außerhalb eines Gasraumes angeordnet ist, gemäß Oberbegriff des Patentanspruches 1. Um hierbei eine Schaltanlage der gattungsgemäßen Art dahingehend weiterzubilden, dass diese kompakter und funktioneller gestaltet ist, ist erfindungsgemäß vorgeschlagen, dass der Trennschalter als Dreistellungsvakuumkammerschalter ausgeführt ist.
Abstract:
The invention relates to a Medium voltage switchgear arrangement with a vacuum circuit breaker with embedded or assembled pole part in an insulating material, and a three-position-switch, located in a closed compartment, according to the preamble of claim, and a method of operating same, according to the preamble of claim 16. In order to implement all aforesaid components, vacuum circuit breaker and three-position-switch in a compact and safe construction, that the three-position-switch and the vacuum circuit breaker are mounted on the common support arrangement, that the three- position-switch is arranged in a closed capsule, and that the drive axis of the vacuum circuit breaker is perpendicular to the drive axis of the three-position switch.
Abstract:
The invention relates to a Vacuum interrupter for low-, medium-, or high-voltage use, for high environmental pressure application, with at least one moving contact (21) and one fixed contact (20) in an insulting ceramic housing (4). In order to reduce the needed number of parts in the case of a pressure tight vacuum interrupter or switchgear installation in high pressure environment like in subsea application, the invention is, that the ceramic housing of the vacuum interrupter itself is high pressure tight, in the range of vacuum inside the ceramic housing, and up to 500 Bar outside of ceramic housing.
Abstract:
The invention relates to an embedded pole part for medium or high voltage use, with a vacuum interrupter which is embedded into an insulating resin (2), wherein a current and/or voltage sensor (3) with sensor housing (4) is integrated inside the insulating resin. To enhance the accuracy of voltage measurement, a metal grid (5) is implemented into the insulating resin, which is arranged between the sensor housing (4) of the current and/or voltage senso and the outer surface (6) of the insulating resin.
Abstract:
The invention relates to a low-, medium-, or high-voltage vacuum interrupter with a contact system of two opposing contacts with AMF contact system, wherein at least one contact is a moving contact, and the AMF contact profile is bell-shaped. In order to develop a concept for higher current interruption, which a resulting effective arc elimination, the invention is, that in the center of each of the AMF-contact profiles is arranged a magnetic field weakening element.
Abstract:
Fault current limiter arrangement for a low, medium to high voltage electricity grid, consisting of a fault current limiter unit (1) which is arranged in line with a vacuum interrupter (circuit breaker unit) (2) comprising a fixed electrical contact (3) which is connected to a lower electrical terminal (4) and a movable electrical contact (5) which is connected to an upper electrical terminal (6), in order to interrupt the current flow after the fault current limiter unit (1) has limited the current flow in fault event, detected by fault current detection means, wherein the fault current limiter unit (1) comprises a movable electrical sliding contact part (8) which is electrically arranged between the upper electrical terminal (6) of the vacuum interrupter (circuit breaker unit) (2) and the movable electrical contact (5) of the vacuum interrupter (circuit breaker unit) (2), and which is movable between a short circuit position (A) adjacent to the upper electrical terminal (6) and a remote position (B) far from the upper electrical terminal (6) for providing a maximum electrical resistance for the current flow.
Abstract translation:用于低,中,高电压电网的故障限流器装置,包括与包括固定电触点(3)的真空断路器(断路器单元)(2)配合的故障限流器单元(1) 其连接到下电端子(4)和连接到上电端子(6)的可移动电触头(5),以便在故障限流器单元(1)限制了电流限制器单元 由故障电流检测装置检测到的故障事件中的电流,其中故障限流器单元(1)包括可动电滑动接触部分(8),其电气地布置在真空断路器的上电端子(6) 断路器单元)(2)和真空断路器(断路器单元)(2)的可移动电触头(5),并且其可在与上电气端子(6)相邻的短路位置(A)和 REM 远离上电气端子(6)的位置(B),用于为电流提供最大的电阻。
Abstract:
The invention relates to a vacuum interrupter with double co-axial contact arrangement in which the inner contact has a TMF-like or Pin shape arranged within concentrically cup shaped AMF coil with a single layer or multilayered contact parts at each side, th.m. on the side of the a fixed contact arrangement as well as on the side of a movable contact arrangement according to the preamble of claim 1. In order to enhance this special construction furthermore in order to result high conductivity and low resistance, the invention is, that the outer cup shaped contact is made from a double or multiple layer arrangement, wherein at least one layer is made from a hard steel or steel alloy and at least a second layer is made from material with high thermal conductivity.
Abstract:
The invention relates to a shielding element for the use in medium voltage switchgears with vacuum interrupters with at least two contacts, which are movable along a switching path between closed and open contact position, wherein the shielding element is positioned around the contact position region in the vacuum interrupter, and a method of making the same, according to the preamble of claims 1 and 7. In order to reduce the use of material, and to optimize sametime the energy absorbance behavior of the shielding, the invention is, that at least the inner surface of the shielding is applied with a topographic structure in that way, that the structure is aligned parallel to the switching path of the contacts.