EP 2188876 A1 20100526 - DAMAGE-LIMITING SWITCHING DEVICE
Title (en)
DAMAGE-LIMITING SWITCHING DEVICE
Title (de)
SCHADENSBEGRENZENDE SCHALTEINRICHTUNG
Title (fr)
DISPOSITIF DE COMMUTATION DE LIMITATION DES DOMMAGES
Publication
Application
Priority
- EP 2008061938 W 20080909
- DE 102007042989 A 20070910
- DE 102008038963 A 20080813
Abstract (en)
[origin: WO2009034081A1] The invention relates to a damage-limiting switching device for surge arresters such as varistors, spark gaps or similar means, comprising a movable switching element, which is conductive or has conductive sections and which is held under mechanical prestress by a fixing device, wherein the fixing device releases the switching element on heating, with the result that said switching element bridges or connects the surge arrester connection contacts or disconnects at least one of the connection contacts. According to the invention, the fixing device is arranged directly at or on the surge arrester at a point with the greatest heating to be expected in the event of overload and has a minimized thermal capacity. In terms of the method, in order to ensure the operation of the damage-limiting switching device, the surge arrester is provided with a separate, erosion-resistant encapsulation in order to collect exhaust heat produced in the event of damage from the resultant arc, wherein the collected thermal energy is supplied in concentrated form to a switching element in the form of a disconnection apparatus or a short-circuiting device for the actuation thereof.
IPC 8 full level
CPC (source: EP)
H01C 7/126 (2013.01); H01T 1/14 (2013.01)
Citation (search report)
See references of WO 2009034081A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
WO 2009034081 A1 20090319; AT E548786 T1 20120315; CN 101836340 A 20100915; CN 101836340 B 20140402; DE 102008038963 A1 20100218; EP 2188876 A1 20100526; EP 2188876 B1 20120307; PL 2188876 T3 20120831; RU 2010110463 A 20111020
DOCDB simple family (application)
EP 2008061938 W 20080909; AT 08803906 T 20080909; CN 200880112569 A 20080909; DE 102008038963 A 20080813; EP 08803906 A 20080909; PL 08803906 T 20080909; RU 2010110463 A 20080909