Abstract:
Die Erfindung betrifft einen Doppelkontakt-Schalter mit einer ersten und einer zweiten röhrenförmig ausgebildeten Vakuumschaltkammer (1, 3), einer feststehenden, zwischen der ersten und zweiten Vakuumschaltkammer angeordneten Elektrode (4) mit einem ersten, in die erste Vakuumschaltkammer (1) hineinragenden Festkontakt (41) und einem zweiten, in die zweite Vakuumschaltkammer (3) hineinragenden Festkontakt (42), einer in der ersten Vakuumschaltkammer (1) angeordneten und in dieser in axialer Richtung beweglichen ersten Elektrode (11) mit einem, einen Kontakt (12) tragenden Bereich, der gegenüber dem Äußeren der ersten Vakuumschaltkammer (1) gasdicht abgesperrt ist, einer in der zweiten Vakuumschaltkammer (3) angeordneten und in dieser in axialer Richtung beweglichen zweiten Elektrode (31), mit einem, einen Kontakt (32) tragenden Bereich, der gegenüber dem Äußeren der zweiten Vakuumschaltkammer (3) gasdicht abgesperrt ist, einer ersten Kontaktdruckfeder (51) zum Beaufschlagen der ersten beweglichen Elektrode (11) mit einer ersten Federkraft derart, dass der Kontakt (12) der ersten Elektrode (11) auf den in die erste Vakuumschaltkammer (1) hineinragenden Festkontakt (41) gepresst wird, einer zweiten Kontaktdruckfeder (52) zum Beaufschlagen der zweiten beweglichen Elektrode (31) mit einer zweiten Federkraft derart, dass der Kontakt (32) der zweiten Elektrode (31) auf den in die zweite Vakuumschaltkammer (3) hineinragenden Festkontakt (42) gepresst wird, wobei die erste Federkraft geringer als die zweite Federkraft bemessen ist.
Abstract:
The present invention relates to a solid-sealed pole which comprises a vacuum arc extinguish chamber, a first conductive terminal and a second conductive terminal. Said vacuum arc extinguish chamber comprises a center axis, a movable conductive rod and a fixed conductive plate. Said first conductive terminal is rotationally symmetrical about said center axis. Said first conductive terminal comprises a circular ring-shaped conductive body and a circular ring-shaped conductive protruding ring attached to the lateral wall of said conductive body. Said conductive body surrounds and electrically connects to said movable conductive rod. Said conductive protruding ring has a plurality of first through-holes. Said second conductive terminal is rotationally symmetrical about said center axis. Said second conductive terminal electrically connects to said fixed conductive plate. The solid-sealed pole of the present invention is small in size and simple in structure, with high safety and reliability.
Abstract:
A vacuum assembly including a vacuum interrupter (102) may be sealed with a compliant material (122) and/or rubber plugs (124), so that a cavity (126) is created and maintained within the assembly for use with a current exchange housing (118) and/or bellows, during operation of the vacuum interrupter (102). During vacuum molding of the vacuum assembly to encapsulate the vacuum assembly in an epoxy (128), a resulting pressure differential caused by the vacuum molding is prevented from disturbing the seal around the vacuum assembly, by way of a needle or tube (202) included in the seal. In this way, air from within the cavity (126) is allowed to escape, while the epoxy (128) is prevented from entering the cavity (126). Then, once encapsulation is complete, the vacuum assembly can be joined with an operating rod (108) and other components to complete a vacuum switching device (100).
Abstract:
Die Erfindung betrifft eine Vakuumschaltröhre (10), mit min- destens einem Isolierkörper (20), einem Festkontakt (30), ei- nem Festkontaktflansch (40), einem Bewegkontakt (50) mit ei- ner Längsachse (56) des Bewegkontaktes (50), einem Bewegkon- taktflansch (60), einem Bewegkontaktlager (70), einem Balg (80), wobei der Festkontakt (30) ortsfest in dem Festkontakt- flansch (40) angeordnet ist, der Bewegkontakt (50) beweglich in dem Bewegkontaktlager (70) geführt ist und der Bewegkon- takt durch den Balg (80) beweglich am Bewegkontaktflansch (60) befestigt ist, wobei der Balg (80) mit einem ersten Bal- gende (82) am Bewegkontaktflansch (60) befestigt ist und der Balg (80) mit einem zweiten Balgende (84) am Bewegkontakt (50) befestigt ist, wobei durch eine auf dem Bewegkontakt (50) gegen Bewegungen entlang der Längsachse (56) des Beweg- kontaktes (50) fixierte Hülse (90), die durch das Bewegkon- taktlager (52) geführt ist eine erhöhte Druckfestigkeit der Vakuumschaltröhre (10) gegen Umgebungsdrücke über 1 bar er- reicht wird.
Abstract:
A vacuum assembly including a vacuum interrupter (102) may be sealed with a compliant material (122) and/or rubber plugs (124), so that a cavity (126) is created and maintained within the assembly for use with a current exchange housing (118) and/or bellows, during operation of the vacuum interrupter (102). During vacuum molding of the vacuum assembly to encapsulate the vacuum assembly in an epoxy (128), a resulting pressure differential caused by the vacuum molding is prevented from disturbing the seal around the vacuum assembly, by way of a needle or tube (202) included in the seal. In this way, air from within the cavity (126) is allowed to escape, while the epoxy (128) is prevented from entering the cavity (126). Then, once encapsulation is complete, the vacuum assembly can be joined with an operating rod (108) and other components to complete a vacuum switching device (100).
Abstract:
In order to simplify the soldering process in the production of a vacuum-tight soldered joint between a ceramic component and a copper component, a layer of sliver (20) is first applied galvanically to the copper component (10, 13, 15) to form the soldering material together with the underlying surface layer of the copper component. During the heat treatment required for soldering metal components (6, 16, 17) can also be soldered in the same manner to the copper component, e.g. the bellows (12) or the screen (16) of a vacuum switching tube.
Abstract:
A sealed solenoid, magnetically operated electric power switch is suitable for use as capacitor, line and load switch operating at transmission and distribution voltages that includes no seals through the sealed container housing the contactor portion of the switch. The sealed solenoid switch includes a magnetically operated drive system with an actuator that magnetically couples across the container wall to avoid the use of a moving or sliding seal as part of the drive system. The sealed solenoid switch may also include a ballast resistor and resistor contact located inside the sealed container to avoid another seal as part of the ballast system. A magnetic latch holds the switch in a closed position, and a spring holds the switch in the closed position, to avoid the need for an energizing current to maintain the switch in either position.
Abstract:
A vacuum interrupter comprises a tubular bellows (30) including a first hollow bore (32); at least one sub- assembly(34), each sub-assembly (34) including an end cap (42), the or each end cap (42) including at least one second hollow bore and having a composition including glass or including glass-ceramic; at least one primary annular metallic element (36) being operably connected between the or each end cap (42) and one of respective ends of the tubular bellows (30); a pair of electrically conductive contact elements (38); and a pair of electrically conductive rods (40), each rod (40) being operably connected to a respective contact element (38) at a first end and being connected in use to an electrical network at a second end, a portion of at least one rod (40) being retained inside the or each second hollow bore of a respective end cap (42), wherein the or each end cap (42) and each rod (40) are operably connected to one of the respective ends of the tubular bellows (30) to define a vacuum-tight enclosure; the contact elements (38) are located inside the enclosure and arranged to define opposed contact surfaces; and the tubular bellows (30) is controllable to expand or contract to move one rod (40) relative to the other rod (40) to open or close a gap between the opposed contact surfaces.