EP 4241354 A1 20230913 - CIRCUIT BREAKER DEVICE AND METHOD
Title (en)
CIRCUIT BREAKER DEVICE AND METHOD
Title (de)
SCHUTZSCHALTGERÄT UND VERFAHREN
Title (fr)
APPAREIL DISJONCTEUR DE PROTECTION ET PROCÉDÉ
Publication
Application
Priority
- DE 102020216396 A 20201221
- EP 2021086123 W 20211216
Abstract (en)
[origin: WO2022136091A1] The invention relates to a circuit breaker device for protecting an electric low-voltage current circuit, wherein the level of the voltage of the low-voltage current circuit is ascertained such that ascertained voltage values are provided, a differential voltage is ascertained from the ascertained voltage values and an expected value of the voltage such that differential voltage values are provided incrementally, each differential voltage value (DU) is compared with a first threshold, and if at least two successive differential voltage values (DU) exceed the threshold, an interruption of the low-voltage current circuit is initiated by means of semiconductor-based switching elements, which are set to a high-ohmic state, in order to protect the low-voltage current circuit from a short-circuit.
IPC 8 full level
H02H 3/44 (2006.01); G01R 19/165 (2006.01); H02H 3/05 (2006.01); H02H 3/50 (2006.01)
CPC (source: EP US)
H02H 3/05 (2013.01 - US); H02H 3/38 (2013.01 - US); H02H 3/44 (2013.01 - EP); H02H 3/50 (2013.01 - EP); G01R 19/16547 (2013.01 - EP); H02H 3/044 (2013.01 - EP); H02H 3/05 (2013.01 - EP)
Citation (search report)
See references of WO 2022136091A1
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
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022136091 A1 20220630; CN 116724240 A 20230908; DE 102020216396 B3 20220512; EP 4241354 A1 20230913; US 2024047957 A1 20240208
DOCDB simple family (application)
EP 2021086123 W 20211216; CN 202180086088 A 20211216; DE 102020216396 A 20201221; EP 21839959 A 20211216; US 202118258597 A 20211216