EP 2249363 A1 20101110 - Arrangement, substation, operating method and use of a grounding switch for protecting an electrical circuit against short-line faults
Title (en)
Arrangement, substation, operating method and use of a grounding switch for protecting an electrical circuit against short-line faults
Title (de)
Anordnung, Unterstation, Betriebsverfahren und Verwendung von einem Erdungsschalter zum Schutz einer elektrischen Schaltung gegen Kurzleitungsfehler
Title (fr)
Agencement, sous-station, procédé de fonctionnement et utilisation d'un commutateur de mise à la terre pour la protection d'un circuit électrique contre des défauts de court-circuit en ligne
Publication
Application
Priority
EP 09159681 A 20090507
Abstract (en)
The invention relates to an arrangement (1) for protecting an electrical circuit from damage caused by a short-line fault, comprising a circuit breaker (2) that connects a generator or busbar (4) with a line (5), wherein a grounding switch (3) is provided that connects the line (5) to ground. The invention further relates to a method for operating such an arrangement that comprises the steps of initially setting the circuit breaker (2) into a closed state and the grounding switch (3) into an open state, and upon detection of a short-line fault opening of the circuit breaker (2) and closing of the grounding switch (3). The invention still further relates to the use of a grounding switch (3) together with a circuit breaker (2) to protect an electrical circuit from damage caused by a short-line fault by suppressing transient recovery voltages.
IPC 8 full level
H01H 31/00 (2006.01); H02B 13/035 (2006.01)
CPC (source: EP)
H01H 31/003 (2013.01); H01H 3/30 (2013.01); H01H 33/16 (2013.01); H01H 33/66261 (2013.01); H01H 33/6661 (2013.01); H01H 33/7015 (2013.01)
Citation (applicant)
- US 7333316 B1 20080219 - NORRIS RICHARD G [US]
- US 5821496 A 19981013 - MIZUFUNE EISAKU [JP], et al
- WO 2007068686 A1 20070621 - SIEMENS AG [DE], et al
- DE 3130643 A1 19830224 - SLAMECKA ERNST
- JP H03190021 A 19910820 - TOSHIBA CORP
- JP H03190028 A 19910820 - TOSHIBA CORP
Citation (search report)
- [X] DE 1184837 B 19650107 - SACHSENWERK LICHT & KRAFT AG
- [XY] US 2005103514 A1 20050519 - UTSUMI TOMOAKI [JP], et al
- [A] WO 9013932 A1 19901115 - SIEMENS AG [DE]
- [Y] DE 3901180 A1 19900719 - PLASMATECH GMBH ELEKTROTECHNIS [DE]
- [Y] US 3192440 A 19650629 - PAUL BALTENSPERGER
- [A] EP 1638124 A1 20060322 - DE BIASI GIOVANNI [IT]
- [XYI] US 2009045171 A1 20090219 - MONTICH EDUARDO [AR]
Designated contracting state (EPC)
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 SE SI SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 09159681 A 20090507