EP 1235243 B1 20100428 - Circuit breaker having and outlet channel for the compression chamber
Title (en)
Circuit breaker having and outlet channel for the compression chamber
Title (de)
Lastschalter mit Ausgangskanal für die Druckkammer
Title (fr)
Disjoncteur incluant un canal de vidange de la chambre de compression par piston
Publication
Application
Priority
FR 0102627 A 20010227
Abstract (en)
[origin: EP1235243A1] The circuit breaker includes two contacts (1,2) in a cut-off space filled with dielectric gas under pressure. A thermal extinguishing chamber (4) and a piston compression chamber (5) are linked, with a control valve regulating the movement of dielectric gas according to operating circumstances. The gas pressure within the cut-off space varies with different cut-off currents passing between arcing contacts. The circuit breaker includes two contacts (1,2) in a cut-off space filled with dielectric gas under pressure, and between which an arc forms during opening of the circuit breaker. A thermal extinguishing chamber (4) communicates directly with the cut-off space, and a piston compression chamber (5) communicates with the thermal extinguishing chamber. The piston compression chamber (5) communicates with the cut-off space by an evacuation channel (13) which is separated from the thermal extinguishing chamber and which is closed by a valve (14). The valve is situated between the thermal extinguishing chamber (4) and the piston compression chamber (5) so as to open and allow the evacuation of over-pressure gas from the piston compression chamber through the cut-off space via the channel (13), when the over-pressure of gas in the thermal extinguishing chamber is greater than the over-pressure of gas in the piston compression chamber.
IPC 8 full level
H01H 33/90 (2006.01)
CPC (source: EP US)
H01H 33/901 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1235243 A1 20020828; EP 1235243 B1 20100428; AT E466372 T1 20100515; DE 60236122 D1 20100610; FR 2821482 A1 20020830; FR 2821482 B1 20030404; US 2002117475 A1 20020829; US 6624371 B2 20030923
DOCDB simple family (application)
EP 02290175 A 20020124; AT 02290175 T 20020124; DE 60236122 T 20020124; FR 0102627 A 20010227; US 5936002 A 20020131