EP 0664553 B1 19970514 - High-voltage power circuit breaker with a heating chamber
Title (en)
High-voltage power circuit breaker with a heating chamber
Title (de)
Hochspannungs-Leistungsschalter mit einem Heizraum
Title (fr)
Disjoncteur de puissance haute tension à chambre d'échauffement
Publication
Application
Priority
DE 4402123 A 19940121
Abstract (en)
[origin: EP0664553A1] A h.v. power switch has contacts (1, 2) that in the engaged position are bridged by a sliding contact (3). Formed between the hollow contacts is an arcing chamber (13). A heating chamber for extinguishing gas (4) is formed between insulating material (4, 5, 6) and an annular space (8) connects with the arcing region and a second heating space (9). This space receives the bridging contact (3) in the on state. When the switch is operated to open the contacts a piston (15) compresses gas in a chamber (14) and it is forced through to extinguish the arc formed by contact opening.
IPC 1-7
IPC 8 full level
H01H 33/70 (2006.01); H01H 33/90 (2006.01); H01H 33/915 (2006.01); H01H 33/98 (2006.01); H01H 33/985 (2006.01)
CPC (source: EP)
H01H 33/901 (2013.01)
Designated contracting state (EPC)
AT CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0664553 A1 19950726; EP 0664553 B1 19970514; AT E153174 T1 19970515; DE 4402123 A1 19950727; DE 4402123 C2 19960222; DE 59402748 D1 19970619
DOCDB simple family (application)
EP 94250299 A 19941221; AT 94250299 T 19941221; DE 4402123 A 19940121; DE 59402748 T 19941221