EP 0398213 B1 19950315 - Middle high-voltage circuit breaker for high nominal current.
Title (en)
Middle high-voltage circuit breaker for high nominal current.
Title (de)
Mittelspannungsschalter für hohen Nennstrom.
Title (fr)
Disjoncteur à moyenne tension à courant nominal élevé.
Publication
Application
Priority
FR 8906554 A 19890519
Abstract (en)
[origin: JPH0329230A] PURPOSE: To reduce the mass of a movable device and to enable savings of the energy required for operating a circuit breaker by providing the movable device including cylindrical members comprising tubes, etc. CONSTITUTION: When a circuit breaker is opened, a tube 22 is moved to the right at a high speed V2. While a tube 30 leaving a finger 3 travels a distance L1 at a speed V1, a movable contact relatively moves a distance L2 longer than the distance L1 at the speed V2 greater than time speed V1. After the main contact 3 and the tube 30 have been separated, a current flows through tubes 4, 15, the contact 13, a tube 9, and a ring 7. Thereby the mass of a movable device is greatly reduced. At the same time, the speed of a movable main contact decreases, resulting in significant savings of the energy required for operating a circuit breaker.
IPC 1-7
IPC 8 full level
H01H 33/12 (2006.01); H01H 33/91 (2006.01); H01H 33/915 (2006.01)
CPC (source: EP US)
H01H 33/12 (2013.01 - EP US); H01H 33/91 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0398213 A1 19901122; EP 0398213 B1 19950315; AT E120030 T1 19950415; BR 9002332 A 19910806; CA 2017127 A1 19901119; CA 2017127 C 19931207; CN 1022270 C 19930929; CN 1050286 A 19910327; DE 69017752 D1 19950420; DE 69017752 T2 19950713; DK 0398213 T3 19950703; ES 2070203 T3 19950601; FR 2647254 A1 19901123; FR 2647254 B1 19910705; JP 2568296 B2 19961225; JP H0329230 A 19910207; US 4996398 A 19910226
DOCDB simple family (application)
EP 90109022 A 19900514; AT 90109022 T 19900514; BR 9002332 A 19900518; CA 2017127 A 19900518; CN 90103725 A 19900519; DE 69017752 T 19900514; DK 90109022 T 19900514; ES 90109022 T 19900514; FR 8906554 A 19890519; JP 12811490 A 19900517; US 52558990 A 19900521