EP 3403273 A1 20181121 - CIRCUIT BREAKER DEVICE
Title (en)
CIRCUIT BREAKER DEVICE
Title (de)
SCHUTZSCHALTERVORRICHTUNG
Title (fr)
DISPOSITIF DISJONCTEUR
Publication
Application
Priority
- IT UB20169940 A 20160112
- IB 2017050144 W 20170112
Abstract (en)
[origin: WO2017122142A1] Circuit breaker device (100) comprising an instantaneous electric power measurement unit (110), a processing unit (140), and a relay unit (180) connected to a unbalancing resistor (190) the ends of which are configured to be connected to a phase conductor and to a neutral conductor of a single phase power line (400), wherein the instantaneous electric power measurement unit (110) is configured to measure an instantaneous electric power corresponding to an AC voltage between the phase conductor and the neutral conductor and to an AC current flowing through the phase conductor or the neutral conductor, the instantaneous electric power measurement unit (110) being configured to provide the processing unit (140) with a digital signal indicating an instantaneous electric power measured by the instantaneous electric power measurement unit (110), wherein the processing unit (140) is configured to activate the relay unit (180) when said measured instantaneous electric power is higher than a tolerance threshold PTOL for a delay time period TDLY, the activation of the relay unit (180) being such that, when the ends of the unbalancing resistor (190) are connected to the phase conductor and to the neutral conductor, respectively, and an end is connected upstream of and the other end is connected downstream of a residual current circuit breaker (300) the two branches of which are connected to the phase conductor and to the neutral conductor, it causes a current to flow through the unbalancing resistor (190) and through only one of the two branches of the residual current circuit breaker (300) resulting into an interruption of the residual current circuit breaker (300).
IPC 8 full level
H01H 83/14 (2006.01); H01H 83/18 (2006.01)
CPC (source: EP)
H01H 83/144 (2013.01); H01H 83/18 (2013.01)
Citation (search report)
See references of WO 2017122142A1
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
DOCDB simple family (publication)
WO 2017122142 A1 20170720; EP 3403273 A1 20181121; EP 3403273 B1 20191106; IT UB20169940 A1 20170712
DOCDB simple family (application)
IB 2017050144 W 20170112; EP 17704299 A 20170112; IT UB20169940 A 20160112