EP 0313813 B2 19970402 - Gas blast switch
Title (en)
Gas blast switch
Title (de)
Druckgasschalter
Title (fr)
Interrupteur à gaz comprimé
Publication
Application
Priority
CH 421187 A 19871027
Abstract (en)
[origin: EP0313813A1] The gas-blast circuit-breaker has a moving (1) and a fixed switchpiece (2), each having at least one erosion contact (6, 7), and, mounted on the moving switchpiece (1), a pressure chamber (10) which stores extinguishing gas which is compressed by the arc during the switching-off process, and whose volume is independent of the switch movement, and an insulating nozzle (8) which is arranged coaxially with respect to the two switchpieces (1, 2). <??>In this circuit breaker, it is intended significantly to increase the separating speed of the erosion contacts (6, 7) with respect to the drive speed without noticeably increasing its drive energy and without modifying its extinguishing geometry. <??>This is achieved by the erosion contact (7) of the fixed switchpiece (2) being guided in the axial direction in a moving manner in a sliding contact (14) and being part of a converter element arranged downstream of the nozzle constriction (9) of the insulating nozzle (8) and operated by the moving switchpiece (7). During the switching-off process, this converter element transmits the movement of the moving switchpiece (1) in the opposite sense onto the erosion contact (7) of the fixed switchpiece (2). <IMAGE>
IPC 1-7
IPC 8 full level
H01H 33/88 (2006.01); H01H 33/91 (2006.01); H01H 33/915 (2006.01); H01H 33/985 (2006.01); H01H 33/90 (2006.01)
CPC (source: EP US)
H01H 33/91 (2013.01 - EP US); H01H 33/7023 (2013.01 - EP US); H01H 33/904 (2013.01 - EP US); H01H 2001/508 (2013.01 - EP US); H01H 2033/028 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0313813 A1 19890503; EP 0313813 B1 19930901; EP 0313813 B2 19970402; CH 675175 A5 19900831; CN 1016124 B 19920401; CN 1032882 A 19890510; DE 3883699 D1 19931007; HU 198803 B 19891128; HU T48408 A 19890529; JP 2769702 B2 19980625; JP H01159922 A 19890622; SU 1729304 A3 19920423; SU 1741620 A3 19920615; US 4973806 A 19901127
DOCDB simple family (application)
EP 88115522 A 19880922; CH 421187 A 19871027; CN 88107462 A 19881027; DE 3883699 T 19880922; HU 559888 A 19881026; JP 26962688 A 19881027; SU 4356739 A 19881026; SU 4614693 A 19890809; US 26184988 A 19881025