EP 1829077 B1 20080319 - GENERATOR SWITCH HAVING AN IMPROVED SWITCHING CAPACITY
Title (en)
GENERATOR SWITCH HAVING AN IMPROVED SWITCHING CAPACITY
Title (de)
GENERATORSCHALTER MIT VERBESSERTER SCHALTLEISTUNG
Title (fr)
INTERRUPTEUR DE GENERATRICE A PUISSANCE DE COUPURE ACCRUE
Publication
Application
Priority
CH 2004000752 W 20041224
Abstract (en)
[origin: US7893379B2] The disclosure relates to an electrical switching device, e.g., a generator circuit breaker, and to a method for improved switching-gas cooling. Gas jets are formed by a nozzle body in the exhaust area, are directed against a baffle wall and are swirled. The baffle wall is a component of the switching chamber enclosure and has a high thermal capacity and/or thermal conductivity, so that the switching gas vortices produce a highly efficient switching gas cooling on the baffle wall by turbulent convection. Exemplary embodiments relate inter alia to the design of the baffle wall and of the nozzle body. Advantages include: protection of the switching chamber enclosure against hot gases, improved switching gas cooling, and increased breaking capacity.
IPC 8 full level
H01H 33/88 (2006.01)
CPC (source: EP US)
H01H 33/74 (2013.01 - EP US); H01H 33/88 (2013.01 - EP US); H01H 2009/526 (2013.01 - EP US); H01H 2033/888 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006066420 A1 20060629; AT E389943 T1 20080415; CN 101120423 A 20080206; CN 101120423 B 20100623; DE 502004006630 D1 20080430; EP 1829077 A1 20070905; EP 1829077 B1 20080319; EP 1829077 B2 20110323; JP 2008525944 A 20080717; JP 4494476 B2 20100630; US 2008006609 A1 20080110; US 7893379 B2 20110222
DOCDB simple family (application)
CH 2004000752 W 20041224; AT 04802392 T 20041224; CN 200480044894 A 20041224; DE 502004006630 T 20041224; EP 04802392 A 20041224; JP 2007547131 A 20041224; US 81257507 A 20070620