EP 0450567 A1 19911009 - High- or medium voltage circuit breaker with abutting arcing contacts.
Title (en)
High- or medium voltage circuit breaker with abutting arcing contacts.
Title (de)
Hoch- oder Mittelspannungs-Schalter mit aufeinanderstossenden Lichtbogenkontakten.
Title (fr)
Disjoncteur à haute ou moyenne tension à contacts d'arc en bout.
Publication
Application
Priority
FR 9004316 A 19900404
Abstract (en)
Medium-voltage circuit-breaker with abutting arcing contacts, comprising, in an insulating envelope (20) filled with a gas having good dielectric properties, a first stationary arcing contact (24, 27), connected to a first current intake (23), and a moving rig comprising a first tube (32) which can be displaced by an operating rod (46), the said first tube being connected by gliding contacts to a second current intake, the said first tube defining, with a second stationary tube (40), a blast volume and being prolonged by a blast nozzle, the said circuit-breaker further comprising a second arcing contact (50, 51) characterised in that the first tube is milled so as to comprise a first part (31) of small diameter and cooperating with the said second tube (40) to constitute the said blast volume (41), and a second part (32), of larger diameter, carrying the said blast nozzle (37), the two parts being connected by a substantially annular portion (33) comprising through-holes (34) and a shoulder (33A) and constituting a blast piston, the said second contact consisting of a third tube (50) sliding inside the said first part (31) of the said first tube, the said third tube comprising a flange (52) on which is supported a first end of a spring (53), a second end of which is supported on the said shoulder (33A), the said spring being taut when the circuit-breaker is in the engaged position. <IMAGE>
IPC 1-7
IPC 8 full level
H01H 33/91 (2006.01); H01H 33/915 (2006.01)
CPC (source: EP US)
H01H 33/91 (2013.01 - EP US)
Citation (search report)
- [A] EP 0011542 A1 19800528 - MERLIN GERIN [FR]
- [A] DD 212352 A1 19840808 - LIEBKNECHT TRANSFORMAT [DD]
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0450567 A1 19911009; EP 0450567 B1 19950726; AT E125639 T1 19950815; BR 9101328 A 19911126; CA 2039645 C 19941122; CN 1023736 C 19940209; CN 1056184 A 19911113; DE 69111498 D1 19950831; DE 69111498 T2 19960111; DK 0450567 T3 19951009; ES 2075245 T3 19951001; FR 2660792 A1 19911011; FR 2660792 B1 19920612; GR 3017630 T3 19960131; JP 2562086 B2 19961211; JP H04249821 A 19920904; US 5155314 A 19921013
DOCDB simple family (application)
EP 91105182 A 19910402; AT 91105182 T 19910402; BR 9101328 A 19910403; CA 2039645 A 19910403; CN 91102689 A 19910403; DE 69111498 T 19910402; DK 91105182 T 19910402; ES 91105182 T 19910402; FR 9004316 A 19900404; GR 950402743 T 19951004; JP 9811991 A 19910403; US 67940391 A 19910402