EP 1417694 A1 20040512 - ELECTROMAGNET ARRANGEMENT FOR A SWITCH
Title (en)
ELECTROMAGNET ARRANGEMENT FOR A SWITCH
Title (de)
ELEKTROMAGNETANORDNUNG FÜR EINEN SCHALTER
Title (fr)
DISPOSITIF A ELECTROAIMANT POUR INTERRUPTEUR
Publication
Application
Priority
- DE 10140559 A 20010817
- EP 0208402 W 20020727
Abstract (en)
[origin: US6906605B2] An electromagnet system for a switch includes a main magnetic circuit including a magnet yoke and a magnet armature mechanically linked to a contact apparatus. At least one permanent magnet is disposed in the main magnetic circuit for generating a holding force for the magnet armature. A shunt circuit is provided parallel with the main magnetic circuit so that the permanent magnet is a magnetic energy source for the shunt circuit. The shunt circuit includes pole legs and a yoke arc of the magnet yoke. The magnet armature is capable of contacting the pole legs so as to close the shunt circuit. An excitation winding is provided for each of the pole legs for to generating a pull-in force for the magnet armature. The electromagnet system is magnetically dimensioned such that a minimum magnetomotive force of the excitation windings is sufficient for opening the electromagnet system.
IPC 1-7
IPC 8 full level
H01H 47/22 (2006.01); H01H 50/42 (2006.01); H01H 51/22 (2006.01); H01H 71/32 (2006.01)
CPC (source: EP US)
H01H 47/226 (2013.01 - EP US); H01H 50/42 (2013.01 - EP US); H01H 51/22 (2013.01 - EP US); H01H 71/321 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 03017308 A1 20030227; AT E356422 T1 20070315; DE 10140559 A1 20030227; DE 50209670 D1 20070419; EP 1417694 A1 20040512; EP 1417694 B1 20070307; US 2004027775 A1 20040212; US 6906605 B2 20050614
DOCDB simple family (application)
EP 0208402 W 20020727; AT 02794737 T 20020727; DE 10140559 A 20010817; DE 50209670 T 20020727; EP 02794737 A 20020727; US 39934403 A 20030416