摘要:
The present disclosure relates to a vacuum interrupter capable of easily installing a central arc shielding plate (11) in alignment without biasing in a radial direction. The vacuum interrupter includes a protruding guide unit (10''a) protruding from a stationary electrode seal cup (10'') in a perpendicular direction to guide the installation of the central arc shielding plate (11) such that it is aligned in a radial direction.
摘要:
An encapsulation (10) for an interrupter includes a main body that includes an internal cavity (14), the internal cavity (14) including a space at a first end thereof for the interrupter (12), a second end of the main body including a surface for mounting the encapsulation (10), an insert assembly (28) mounted in the second end for facilitating mounting the encapsulation (10), the insert assembly including a rigid connector (30, 32) and a plurality of fasteners (26) fixed to the rigid connector (30, 32).
摘要:
A third electrode (8A) is soldered, via a support fitting (9) onto the inner surface of a support part (1a) which projects into the intermediate part of the inner surface of an insulation tube (1A). An arc generated between the fixed-side contact (5A) and the movable-side contact (5B) when the switch is opened is led from the outer periphery of the fixed-side contact (5A) via the third electrode (8A) to the movable-side contact (5B), in a so-called two-point switch, and the dielectric breakdown probability is thus reduced, particularly at low voltages. The third electrode may have its outer periphery exposed from the insulation tube and be used as one electrode when conditioning is carried out. By the use of this structure, the present invention is capable of meeting the demands for environmental protection and insulation reliability.
摘要:
The vacuum switchgear comprises a vacuum interrupter from which the seal is put on to both ends of insulation container where the insulation medium is enclosed airtight with the first and second metallic material, in which the vacuum interrupter has fixed electrode which penetrates through the first metallic material and clings the first metallic material, and movable electrode which penetrates the through the second metallic material, is fixed the second metallic material through bellows, and is provided to oppose to the fixed electrode; and operation mechanism which moves the movable electrode along a straight line at three positions of a close position, an open position, and an isolation position.
摘要:
Erfindungsgemäß ist der Dampfschirm in der Mittelebene zwischen den geöffneten Kontakten (2, 4) mit einer radial nach innen gerichteten Wölbung versehen. In einer Ausführungsform des Vakuumschalters mit metallischem Gehäuse (6) kann das Gehäuse selbst die Wölbung enthalten oder auch mit einer zusätzlichen, entsprechend gestalteten Einlage (12) versehen sein. Die Neigung der abfallenden Flanken der Wölbung ist so gewählt, daß die vom Lichtbogen ausgehende Plasmaströmung in axialer Richtung abgelenkt wird. Damit wird insbesondere bei einpoligen Schaltern mit verhältnismäßig langen Bogenzeiten die Belastung des Dampfschirms vermindert.
摘要:
A vacuum circuit interrupter includes a cylinder (21, 111) made of a metal relatively easy to deform platically, and first and second insulating disks (22, 23, 112, 113) closing the ends of the metallic cylinder (21, 111) to form therewith an evacuated envelope (20, 110). A stationary conductive rod (31, 121) enters the envelope (20, 110) through the first disk (22, 112) in such a manner as to provide a seal therewith. A movable conductive rod (32, 122) movably enters the envelope (20, 110) through the second disk (23, 113). A bellows (39, 129) is fixed at its one end to the movable rod (32, 122) and at its other end to the second disk (23, 113) in such a manner as to provide a seal about the movable rod (32, 122) to allow for movement thereof without impairing the vacuum inside the envelope (20, 110). Stationary and movable electrodes (33, 34, 123, 124) are connected to the stationary and movable rods (31,32,121,122) respectively in such a manner as to engage and disengage with each other according to the movement of the movable rod (32, 122).