EP 0720774 B1 19970514 - HIGH-VOLTAGE POWER SWITCH WITH A COOLING DEVICE FOR COOLING THE QUENCHING GAS
Title (en)
HIGH-VOLTAGE POWER SWITCH WITH A COOLING DEVICE FOR COOLING THE QUENCHING GAS
Title (de)
HOCHSPANNUNGS-LEISTUNGSSCHALTER MIT EINER KÜHLEINRICHTUNG ZUR KÜHLUNG DES LÖSCHGASES
Title (fr)
SECTIONNEUR DE PUISSANCE HAUTE TENSION POURVU D'UN SYSTEME DE REFROIDISSEMENT DU GAZ DE COUPAGE
Publication
Application
Priority
- DE 9400988 W 19940822
- DE 9314779 U 19930924
Abstract (en)
[origin: WO9508834A1] An electric high-voltage power switch has two contacts (1, 2) and at least one gas outlet (17) for quenching gas heated by the arc and a cooling device (12) for cooling the quenching gas consisting of a metal body (12) with through apertures (18) arranged in the flow path of the quenching gas. An insulating component (13, 14) impermeable to the quenching gas, is fitted in the gas outlet (17) in front of the metal body (12) viewed from the contacts (1, 2) and consists of a material (PTFE) releasing a quenching gas at high temperatures. Said insulating component (13, 14) is far enough away from the metal body (12) for the quenching gas to be able to pass through the aperture (18) substantially over the entire surface of the metal body (12).
IPC 1-7
IPC 8 full level
H01H 33/57 (2006.01); H01H 33/74 (2006.01); H01H 33/76 (2006.01); H01H 33/78 (2006.01)
CPC (source: EP US)
H01H 33/765 (2013.01 - EP US); H01H 33/98 (2013.01 - EP US); H01H 2033/888 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
DE 9314779 U1 19931125; DE 59402778 D1 19970619; EP 0720774 A1 19960710; EP 0720774 B1 19970514; US 5717183 A 19980210; WO 9508834 A1 19950330
DOCDB simple family (application)
DE 9314779 U 19930924; DE 59402778 T 19940822; DE 9400988 W 19940822; EP 94924696 A 19940822; US 61954596 A 19960524