Abstract:
The invention relates to a contact device (200) for a switching pole (100) of an electric and/or electronic application, such as a circuit breaker, with an inner terminal (211, 221, 231, 241, 251) for electrically connecting the contact device (200) to a moving contact (103) of the switching pole (100), and an outer terminal (212, 222, 232, 242, 252) for electrically connecting the contact device (200) to a terminal (105, 107) of the switching pole (100). The proposed solution offers the combination of a low electrical resistance with a high mechanical flexibility. A braided flexible structure (213, 223, 233) is provided extending in a plane for electrically connecting the inner terminal (211, 221, 231, 241, 251) with the outer terminal (212, 222, 232, 242, 252) such that the inner terminal (211, 221, 231, 241, 251) is movable relative to the outer terminal (212, 222, 232, 242, 252) and in a direction (224) traverse to the plane from an off-position (290) to an on-position (292) of the switching pole (100).
Abstract:
A contact assembly 30 for interrupting an electrical current comprises an outer field generating element 38 for generating a first axial magnetic field (AMF), an inner field generating element 50 for generating a second AMF opposite to the first AMF. The inner field generating element 50 is coaxial with the outer field generating element 38 and has a smaller diameter than the outer field generating element 50. The outer field generating element 50 is cup-shaped and slotted with non-radial slots 46 to generate the first AMF. The contact assembly 30 comprises an innermost conducting element 66 for nominal current conduction and coaxially adjusted with the inner field generating element.
Abstract:
Method (600) of manufacturing a push rod (100) for switching a vacuum interrupter with a step of moulding (601) the push rod (100) with a plastic material, wherein the push rod (100) comprises a core component (101) adapted for receiving a spring element (203). The push rod (100) further comprises a rod component (102) which may comprise another second material, wherein the core component (101) is embedded in the rod component (102) thereby forming the push rod (100).
Abstract:
The invention relates to a method for production of a contact piece for a switchgear assembly, and to a contact piece itself, as claimed in the preamble of patent claims 1 and 15. In order in this case to introduce the slot and to apply a contact outer contour directly during the powder-metallurgical production process of the contact material, the ivention proposes that contouring, in particular via a thin plastic film, in the form of a slot or slots is introduced into the component and/or into the contact piece and/or into the powder-metal material, which is located in a mold, essentially in a direction parallel to the normal to the surface of the component or contact piece.
Abstract:
Die Erfindung betrifft ein Verfahren zur Herstellung von Schalterpolteilen bzw. Kunststoffbauteileinheiten für Nieder- Mittel- und Hochspannungsschaltanlagen, sowie Schalterpolteil selbst gemäß Oberbegriff der Patentansprüche 1 und 11. Um eine einfachere Fertigung mit einer höheren Varianz an Materialeigenschaften zu erhalten, ist erfindungsgemäß vorgeschlagen, dass die äußere Isolationshülle in einem Kunststoffspritzgussverfahren hergestellt wird, indem eine Vakuumschaltkammer umspritzt wird.
Abstract:
The invention relates to a method to determine the pressure inside of a vacuum interrupter for medium or high voltage use, wherein at least one fixed contact piece and at least one movable contact piece are arranged inside the technical vacuum of a vacuum interrupter, and wherein the contact pieces are electrically connected to external electrical fixation points, according to the preamble of claim 1 and 5. In order to to implement a high accuracy pressure sensoring in the rough conditions inside a vacuum interrupter, without additional means internally to the vacuum interrupter, the external electrical fixation points are connected with an external electrical energy source, and that in the disconnected or open position of the vacuum interrupter, the effect of a cold cathode vacuum gauge will be used, in that the leakage current between the open contacts generates an x-ray induced ionization of the rest- gas inside the vaccum interrupter, and that the resulting current is measured with high resolution, in order to determine by this current the restgas pressure inside the vacuum interrupter.
Abstract:
High voltage switching device comprising an outer casing, and at least two vacuum interrupters electrically connected in series to each other and having each a fixed contact and an associated movable contact. An actuating mechanism actuates the movable contacts between a first closed position in which they are connected to the corresponding fixed contacts, and a second open position in which they are separated therefrom. The actuating mechanism comprises a single drive unit supplying the energy required to move the movable contacts, and transmission means transmitting the energy required to the movable contacts; the transmission means comprise at least one transmission belt or chain drive which is actuated by the drive unit and operatively links the movement of the movable contacts.
Abstract:
The invention concerns to a vacuum interrupter with transition areas between metal housing parts and ceramic housing parts covered by insulating material according to the preamble of claim 1. In order to enhance the dielectric performance and the field grading behaviour, the insulating material extends as a tube or a multilayer tube design over at least nearly the complete length of the vacuum interrupter or vacuum device arrangement, and that the insulating material is filled or at least covered at the inner surface which come into close contact with the vacuum interrupter or vacuum device surface, with metal and/or conductive metal oxides.
Abstract:
The invention relates to a vapor shield arrangement for vacuum switching tube, as for the use in medium voltage switchgears. In order to result a shielding which has a high absorbance of thermal energy as well as a good protection against metal deposition on the inner ceramic surface caused by high energy light arc impact, it is proposed, that the shielding consist of at least two concentric arranged cylindric shielding elements 4, 4' with a space or hollow space between the so arranged inner shielding element 4 and the at least one outer shielding element 4', and that the inner shielding element has openings 8 which corresponds with the hollow space between the shielding elements.