Global Patent Index - EP 0758794 B1

EP 0758794 B1 20000223 - Device for monitoring the vacuum of a vacuum switch

Title (en)

Device for monitoring the vacuum of a vacuum switch

Title (de)

Vorrichtung zur Überwachung des Vakuums eines Vakuumschalters

Title (fr)

Dispositif de surveillance du vide d'un disjoncteur sous vide

Publication

EP 0758794 B1 (DE)

Application

EP 96110096 A

Priority

DE 19529499 A

Abstract (en)

[origin: EP0758794A1] A device for monitoring the vacuum of a vacuum switch having at least one vacuum switching tube (interrupter), a switch chamber and switch contacts and a remotely interrogated or scanned pressure measuring sensor arranged within the vacuum interrupter, and a remote interrogation device. The device enables measurement to be carried out both with a contact open as well as with a contact closed during operation e.g. during measurement of pressure-proportional ion current flow in the vacuum interrupter. Thus the remotely interrogated pressure measuring sensor used comprises a surface wave filter or a surface wave resonator and the remote interrogation device comprises a transmitter, a receiver and an evaluation device.

IPC 1-7

H01H 33/66

IPC 8 full level

H01H 33/668 (2006.01)

CPC (source: EP)

H01H 33/668 (2013.01); H01H 2033/6686 (2013.01)

Designated contracting state (EPC)

CH DE FR GB IT LI

DOCDB simple family (publication)

EP 0758794 A1 19970219; EP 0758794 B1 20000223; US 5739419 A 19980414

DOCDB simple family (application)

EP 96110096 A 19960621; US 69493996 A 19960809