EP 1710812 B1 20080716 - Fault-current circuit breaker and magnetic core for a fault-current circuit breaker
Title (en)
Fault-current circuit breaker and magnetic core for a fault-current circuit breaker
Title (de)
Fehlerstromschutzschalter und Magnetkern für einen Fehlerstromschutzschalter
Title (fr)
Disjoncteur de courant et noyau magnétique pour un disjoncteur de courant
Publication
Application
Priority
DE 102005009168 A 20050225
Abstract (en)
[origin: EP1710812A1] The breaker has a summation current transformer with a soft magnetic core (2) made of nano-crystalline iron base alloy and with differential windings (4, 5) attached on the core. A relay (3) is connected with a measuring coil (7) of the transformer. The magnetic core exhibits a maximum permeability of more than 350 and a remanence ratio of more than 0.7, where the alloy has a structure, which consists of fine crystalline grains.
IPC 8 full level
H01F 1/153 (2006.01)
CPC (source: EP)
H01F 1/15308 (2013.01); H01F 1/15333 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1710812 A1 20061011; EP 1710812 B1 20080716; AT E401655 T1 20080815; DE 502006001096 D1 20080828; ES 2308610 T3 20081201; PL 1710812 T3 20081231
DOCDB simple family (application)
EP 06003118 A 20060216; AT 06003118 T 20060216; DE 502006001096 T 20060216; ES 06003118 T 20060216; PL 06003118 T 20060216