EP 2682972 B1 20150916 - Device for detecting the open or closed state of a switch and associated transformer protection relay monitoring device
Title (en)
Device for detecting the open or closed state of a switch and associated transformer protection relay monitoring device
Title (de)
Vorrichtung zur Erkennung des offenen oder geschlossenen Zustands eines Schalters, und Schutz-Relaisüberwachungsvorrichtung des entsprechenden Transformators
Title (fr)
Dispositif de détection d'état ouvert ou fermé d'interrupteur et dispositif de monitorage de relais de protection de transformateur associé
Publication
Application
Priority
FR 1256538 A 20120706
Abstract (en)
[origin: EP2682972A1] The device has a current clamping circuit (2) and a voltage clamping circuit (3) arranged in series. An input of the current clamping circuit is connected on a terminal of a switch, where another terminal of the switch is connected to a mass of the device. A comparator (4) comprises an input unit that is connected to an output unit of the voltage clamping circuit. A load regulating circuit (1) is arranged between an output of a low-pass filter (5) and the input unit of the current clamping circuit.
IPC 8 full level
H01H 9/16 (2006.01); G01R 19/165 (2006.01); H01H 47/00 (2006.01); H02H 1/00 (2006.01)
CPC (source: EP)
H01H 9/16 (2013.01); H01H 47/002 (2013.01)
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2682972 A1 20140108; EP 2682972 B1 20150916; FR 2993057 A1 20140110; FR 2993057 B1 20140808
DOCDB simple family (application)
EP 13174913 A 20130703; FR 1256538 A 20120706