EP 3229250 A1 20171011 - DC HIGH-SPEED CIRCUIT BREAKER
Title (en)
DC HIGH-SPEED CIRCUIT BREAKER
Title (de)
GLEICHSTROM-HOCHGESCHWINDIGKEITSSCHUTZSCHALTER
Title (fr)
DISJONCTEUR CC GRANDE VITESSE
Publication
Application
Priority
- JP 2014242760 A 20141201
- JP 2015082521 W 20151119
Abstract (en)
The present invention is to provide a DC high-speed circuit breaker in which a high interruption performance can be obtained even from a large current to a small current. The arc chute includes: first insulation side plates which are arranged so as to sandwich the fixed main contact and the movable main contact from both sides, and form a first arc gas flow passage through which arc gas generated at the fixed main contact and the movable main contact is led to the outside of the arc chute; a plurality of grids which are arranged on the upper side of the fixed main contact and the movable main contact , and form a second arc gas flow passage, the second arc gas flow passage being configured to be a larger width than the space between the first insulation side plates, being communicated to the first arc gas flow passage, and having a larger sectional area than the sectional area of the first arc gas flow passage; and second insulation side plates which are arranged so as to sandwich the grids from both sides, and forms a third arc gas flow passage on the upper side of the grids, the third arc gas flow passage being communicated to the second arc gas flow passage and having a larger sectional area than the sectional area of the second arc gas flow passage.
IPC 8 full level
H01H 33/10 (2006.01)
CPC (source: EP)
H01H 9/342 (2013.01); H01H 9/345 (2013.01); H01H 9/362 (2013.01); H01H 33/10 (2013.01); H01H 9/443 (2013.01); H01H 33/20 (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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3229250 A1 20171011; EP 3229250 A4 20180815; EP 3229250 B1 20190717; AU 2015356244 A1 20170427; AU 2015356244 B2 20180215; JP 6203428 B2 20170927; JP WO2016088561 A1 20170427; WO 2016088561 A1 20160609
DOCDB simple family (application)
EP 15865768 A 20151119; AU 2015356244 A 20151119; JP 2015082521 W 20151119; JP 2016562377 A 20151119