EP 0171657 B1 19890111 - PRESSURISED-GAS CIRCUIT BREAKER WHICH CAN BE ASSEMBLED AND DISASSEMBLED WITHOUT APPRECIABLE GAS LOSSES
Title (en)
PRESSURISED-GAS CIRCUIT BREAKER WHICH CAN BE ASSEMBLED AND DISASSEMBLED WITHOUT APPRECIABLE GAS LOSSES
Publication
Application
Priority
FR 8411787 A 19840725
Abstract (en)
[origin: US4612428A] The circuit breaker comprises first (2A) and second (2B) compressed-gas-filled enclosures, said first enclosure containing fixed contacts and a moving assembly comprising contacts cooperating with said fixed contacts, which moving assembly is movable by means of a control rod (12), said second enclosure containing a connecting rod (30) articulated on a crank (40) swivelling about a shaft (41) going through the housing of the control mechanism and connected on the outside of said housing with rotational driving means, said first and second enclosures (2A, 2B) being coaxially superposed and attached together when the circuit breaker is assembled, rods (12) and (30) being fast end to end, the moving assembly then having an operating stroke going from a first position where the breaker is open to a second position where the breaker is closed. The moving assembly can be moved beyond said second, closed breaker position by an overstroke obtained by an increased rotation of said shaft (41), the latter having means for locking it in overstroke position, said first enclosure comprising a sliding, tubular air lock ( 50) able, when the moving assembly is in overstroke position, to assume a position sealingly closing off said first enclosure.
IPC 1-7
IPC 8 full level
H01H 33/56 (2006.01); H01H 33/915 (2006.01)
CPC (source: EP US)
H01H 33/561 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0171657 A1 19860219; EP 0171657 B1 19890111; AT E40018 T1 19890115; BR 8503532 A 19860422; CA 1245697 A 19881129; DE 3567552 D1 19890216; ES 545525 A0 19861216; ES 8702734 A1 19861216; FR 2568405 A1 19860131; FR 2568405 B1 19861107; IN 163712 B 19881029; US 4612428 A 19860916
DOCDB simple family (application)
EP 85109145 A 19850723; AT 85109145 T 19850723; BR 8503532 A 19850725; CA 487428 A 19850724; DE 3567552 T 19850723; ES 545525 A 19850724; FR 8411787 A 19840725; IN 556DE1985 A 19850716; US 75798885 A 19850723