EP 1480241 B1 20060104 - Hybrid DC circuit breaker with zero current switching and method of switching
Title (en)
Hybrid DC circuit breaker with zero current switching and method of switching
Title (de)
Verfahren zur Abschaltung von Gleichströmen und Gleichstrom-Schnellschalteinrichtung für Bahnstromversorgungen
Title (fr)
Disjoncteur hybride pour courant continu et procédé de disjonction
Publication
Application
Priority
EP 03090155 A 20030523
Abstract (en)
[origin: EP1480241A1] The method involves using a DC rapid switching device with a switching unit (VS) and a quenching circuit parallel to the shaft section of the switching unit, consisting of a quenching capacitor (LK) connected in series with two antiparallel quenching thyristors (LT1,LT2) and an inductance (L). The switching process is initiated by a control command to open the metal contact of the switching unit at a certain time point. The first thyristor is fired at a defined time point dependent on the level and direction of the operating current. The second thyristor is fired at a time dependent on the quenching current's time profile. An independent claim is also included for rapid switching devices for quenching a DC current in a rectifier sub-mechanism for a railway current supply.
IPC 8 full level
H01H 33/59 (2006.01); H01H 9/54 (2006.01); H01H 9/56 (2006.01)
CPC (source: EP)
H01H 33/596 (2013.01); H01H 9/541 (2013.01); H01H 9/56 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1480241 A1 20041124; EP 1480241 B1 20060104; AT E315274 T1 20060215; DE 50302112 D1 20060330
DOCDB simple family (application)
EP 03090155 A 20030523; AT 03090155 T 20030523; DE 50302112 T 20030523