EP 3058576 B1 20180530 - CURRENT TRANSFORMER FOR LOW VOLTAGE RESIDUAL CURRENT CIRCUIT BREAKERS
Title (en)
CURRENT TRANSFORMER FOR LOW VOLTAGE RESIDUAL CURRENT CIRCUIT BREAKERS
Title (de)
CURRENT TRANSFORMER FÜR EINEN NIEDERSPANNUNGS-FEHLERSTROMSCHUTZSCHALTER
Title (fr)
TRANSFORMATEUR DE COURANT POUR DISJONCTEURS DE COURANT RÉSIDUEL À BASSE TENSION
Publication
Application
Priority
- IT MI20131736 A 20131017
- EP 2014071978 W 20141014
Abstract (en)
[origin: WO2015055628A1] A current transformer (1) for low voltage residual current circuit breakers characterized in that it comprises: - a first magnetic core (2); - primary winding means comprising one or more primary conductors (31, 32, 33, 34) passing through said first magnetic core; - secondary winding means comprising one or more first secondary conductors (42) passing through said first magnetic core; - first electric contacts (51, 52, 53, 54) and second electric contacts (61, 62, 63, 64) for connection of said primary conductors to one or more further conductors. The primary conductors (31, 32, 33, 34) are formed by conductive bars each having a first shaped end (311, 321, 331, 341) and a second shaped end (312, 322, 332, 342). The current transformer comprises a first printed circuit (5) comprising one or more first conductive pads (51, 52, 53, 54) arranged to form the first electric contacts of said current transformer. Each of said conductive bars has the first shaped end (311, 321, 331, 341) fixed to said first printed circuit at a respective first conductive pad (51, 52, 53, 54) of said first printed circuit so as to be mechanically supported by said first printed circuit and be electrically connected to said first conductive pad.
IPC 8 full level
H01F 27/28 (2006.01); H01F 38/28 (2006.01)
CPC (source: EP)
H01F 38/30 (2013.01); H01F 38/32 (2013.01); H01F 2038/305 (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)
WO 2015055628 A1 20150423; CN 105706194 A 20160622; EP 3058576 A1 20160824; EP 3058576 B1 20180530; IT MI20131736 A1 20150418
DOCDB simple family (application)
EP 2014071978 W 20141014; CN 201480057110 A 20141014; EP 14795967 A 20141014; IT MI20131736 A 20131017