EP 1040496 B1 20020522 - ELECTRICAL CIRCUIT BREAKER
Title (en)
ELECTRICAL CIRCUIT BREAKER
Title (de)
ELEKTRISCHER SCHALTER
Title (fr)
DISJONCTEUR ELECTRIQUE
Publication
Application
Priority
- GB 9803851 W 19981221
- GB 9726707 A 19971219
Abstract (en)
[origin: GB2332566A] An electrical circuit breaker (10) comprises an enclosure (12) filled with an insulating fluid. Within the enclosure (12) is a pair of opposing contacts (14 and 16) one of which is fixed and the other moves axially relative thereto. When the contacts (14 and 16) are separated an arc is drawn between them. The arc is rotated by a magnetic field generated by coil (18). A shield (20) prevents the arc short circuiting the coil (18) but also traps ionised gas particles and metallic vapours. To prevent the ionised gas and vapours building up, a flow of purging gas is directed to region A, eg through channels (26 and 28). The purging flow of gas flushes out this region to prevent re-establishment of the arc.
IPC 1-7
IPC 8 full level
H01H 33/915 (2006.01); H01H 33/18 (2006.01); H01H 33/70 (2006.01); H01H 33/91 (2006.01); H01T 1/08 (2006.01)
CPC (source: EP)
H01H 33/18 (2013.01); H01H 33/91 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR IE IT LI NL SE
DOCDB simple family (publication)
GB 2332566 A 19990623; GB 2332566 B 20010919; GB 9726707 D0 19980218; AT E218008 T1 20020615; AU 1771299 A 19990712; CN 1149600 C 20040512; CN 1284202 A 20010214; DE 69805547 D1 20020627; DE 69805547 T2 20030109; EP 1040496 A1 20001004; EP 1040496 B1 20020522; ES 2177118 T3 20021201; HK 1034801 A1 20011102; JP 2001527270 A 20011225; MY 129528 A 20070430; WO 9933081 A1 19990701; WO 9933081 A8 20000831
DOCDB simple family (application)
GB 9726707 A 19971219; AT 98962578 T 19981221; AU 1771299 A 19981221; CN 98813538 A 19981221; DE 69805547 T 19981221; EP 98962578 A 19981221; ES 98962578 T 19981221; GB 9803851 W 19981221; HK 01105333 A 20010731; JP 2000525902 A 19981221; MY PI9805723 A 19981217