EP 0042456 B1 19850123 - HIGH VOLTAGE POWER CIRCUIT BREAKER
Title (en)
HIGH VOLTAGE POWER CIRCUIT BREAKER
Publication
Application
Priority
EP 80200596 A 19800623
Abstract (en)
[origin: US4427859A] A high voltage power switch has a stationary contact and an axially displaceable contact, with a nozzle-like orifice through which quenching gas flows during the disconnecting process from a quenching chamber to an expansion chamber, and a coil through which the disconnect current flows after the commutation of the disconnect arc to an annular contact. Between the stationary contact and the annular contact at least one exhaust channel is provided, whereby prior to the commutation of the disconnect arc to the annular contact, the quenching gas heated by the disconnect arc is removed from the contact-break path and conducted into a discharge chamber. This feature enables the dielectric strength of the arc path to be increased by simple means, while simultaneously effecting a commutation of the disconnect arc from the stationary arcing contact to the annular contact in a constantly secure manner.
IPC 1-7
IPC 8 full level
H01H 33/98 (2006.01)
CPC (source: EP US)
H01H 33/982 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR IT
DOCDB simple family (publication)
EP 0042456 A1 19811230; EP 0042456 B1 19850123; CS 229671 B2 19840618; DE 3070004 D1 19850307; US 4427859 A 19840124; YU 108581 A 19830630; YU 39700 B 19850320
DOCDB simple family (application)
EP 80200596 A 19800623; CS 463981 A 19810619; DE 3070004 T 19800623; US 27534881 A 19810618; YU 108581 A 19810427