EP 0789928 B1 19981209 - HIGH-VOLTAGE CIRCUIT BREAKER WITH AUTOMATIC ARC EXTINCTION
Title (en)
HIGH-VOLTAGE CIRCUIT BREAKER WITH AUTOMATIC ARC EXTINCTION
Title (de)
HOCHSPANNUNGSSCHALTER MIT SELBSTBEBLASUNG
Title (fr)
DISJONCTEUR A HAUTE TENSION ET A AUTOSOUFFLAGE DE L'ARC
Publication
Application
Priority
- FR 9501434 W 19951031
- JP 26736794 A 19941031
Abstract (en)
[origin: WO9613844A1] A high-voltage insulating gas circuit breaker with an automatic extinction device (9, 10) for extinguishing the arc (17) generated between the stationary arcing contact (2) and the moving arcing contact (7) when power is cut off. A cooling tube (1) downstream from the blow nozzle (5) is provided with a plurality of gas through-holes (19) in the flow path of the hot gas (18) generated by the arc. As the gas flows through the cooling tube (1), the gas pressure differential at the through-holes (19) causes fresh gas (20) to be sucked into the tube (1) and mixes the hot and fresh gases together. The gas (21) discharged from the cooling tube (1) is sufficiently cooled to maintain the dielectric properties of the circuit breaker.
IPC 1-7
IPC 8 full level
H01H 33/24 (2006.01); H01H 33/91 (2006.01); H01H 33/915 (2006.01)
CPC (source: EP US)
H01H 33/91 (2013.01 - EP US); H01H 2033/888 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI SE
DOCDB simple family (publication)
WO 9613844 A1 19960509; DE 69506581 D1 19990121; DE 69506581 T2 19990701; EP 0789928 A1 19970820; EP 0789928 B1 19981209; JP 2910582 B2 19990623; JP H08129937 A 19960521; US 5978200 A 19991102
DOCDB simple family (application)
FR 9501434 W 19951031; DE 69506581 T 19951031; EP 95939308 A 19951031; JP 26736794 A 19941031; US 83605797 A 19970429