EP 2272145 A1 20110112 - PROTECTION DEVICE
Title (en)
PROTECTION DEVICE
Title (de)
SCHUTZVORRICHTUNG
Title (fr)
DISPOSITIF DE PROTECTION
Publication
Application
Priority
- EP 2009053507 W 20090325
- DE 102008016585 A 20080331
Abstract (en)
[origin: WO2009121770A1] The invention relates to a protection device (1) comprising at least one protection element (FS, SD1, SD2) for protecting an electrical system from being impaired and/or destroyed by interference. The protection device (1) comprises a diagnosis device (2) for identifying the functional state of the protection device (1), in addition to a measuring device and an interference detection device. The measuring device detects a voltage curve between a first and a second measuring point (3, 4) and, when the interference detection device detects interference on the basis of a number of pre-determined features, the measuring device tests whether the voltage curve meets a number of pre-determined criteria. The protection device (1) is identified by the diagnosis device (2) as being operable when the voltage curve identified by the measuring device meets the number of pre-determined criteria, and inoperable when the voltage curve identified by the measuring device does not meet the number of pre-determined criteria.
IPC 8 full level
CPC (source: EP US)
H02H 9/042 (2013.01 - EP US); H02H 3/044 (2013.01 - EP US)
Citation (search report)
See references of WO 2009121770A1
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 MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
DE 102008016585 A1 20091001; CN 101981777 A 20110223; CN 101981777 B 20140326; EP 2272145 A1 20110112; RU 2010143740 A 20120510; RU 2472267 C2 20130110; US 2011102957 A1 20110505; WO 2009121770 A1 20091008
DOCDB simple family (application)
DE 102008016585 A 20080331; CN 200980111470 A 20090325; EP 09727123 A 20090325; EP 2009053507 W 20090325; RU 2010143740 A 20090325; US 93493709 A 20090325