Global Patent Index - EP 1744338 B1

EP 1744338 B1 20100331 - Drive mechanism and method for opening/closing of electric switchgear

Title (en)

Drive mechanism and method for opening/closing of electric switchgear

Title (de)

Antriebsmechanismus und Schaltverfahren für ein Schaltgerät

Title (fr)

Méchanisme de commande und procédé de commutation pour un appareil de commutation

Publication

EP 1744338 B1 20100331 (EN)

Application

EP 05106394 A 20050713

Priority

EP 05106394 A 20050713

Abstract (en)

[origin: EP1744338A1] Electrical switchgear, e.g. circuit breaker, needs to perform switching operations in very short time in order to quickly react on fault conditions e.g. by opening the line the switchgear is connected to. The moveable contact of such switchgear is driven by a drive mechanism which must be able to provide enough energy in short time to accelerate the moveable masses of the switchgear and drive mechanism in such short times. The inventive drive mechanism provides an electric motor (12) as source of energy and an additional source of energy, which supports the electric motor (12) in driving the moveable contact (6) at least during part of the switching motion.

IPC 8 full level

H01H 33/36 (2006.01); H01H 33/40 (2006.01)

CPC (source: EP)

H01H 33/36 (2013.01); H01H 33/40 (2013.01); H01H 3/30 (2013.01)

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 LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1744338 A1 20070117; EP 1744338 B1 20100331; AT E463039 T1 20100415; DE 602005020268 D1 20100512

DOCDB simple family (application)

EP 05106394 A 20050713; AT 05106394 T 20050713; DE 602005020268 T 20050713