EP 0248342 A3 19881123 - CIRCUIT BREAKERS, AND A METHOD OF INCREASING THE BREAKING CAPACITY OF A CIRCUIT BREAKER
Title (en)
CIRCUIT BREAKERS, AND A METHOD OF INCREASING THE BREAKING CAPACITY OF A CIRCUIT BREAKER
Publication
Application
Priority
GB 8613263 A 19860531
Abstract (en)
[origin: EP0248342A2] A miniature circuit breaker of the kind comprising two arc runners (20, 22) which diverge towards an arc stack (24), onto which an arc is transferred as contacts of the circuit breaker are opened. A supplementary runner (30) is provided, onto which the arc is transferred from the first of said runners (20), so that the arc extends between the second (22) and the supplementary runner (30). The supplementary runner (30) is connected into the circuit through a high impedence, so that the rate of increase of arcing current is reduced as the arc travels into the arc stack.
IPC 1-7
IPC 8 full level
CPC (source: EP)
H01H 9/42 (2013.01); H01H 9/465 (2013.01)
Citation (search report)
- [Y] US 2639354 A 19530519 - FRANK EDWARD J, et al
- [Y] DE 1944143 A1 19700312 - GEN ELECTRIC
- [A] US 1751205 A 19300318 - HELLMUND RUDOLF E
- [A] EP 0205369 A1 19861217 - MERLIN GERIN [FR]
Designated contracting state (EPC)
AT CH DE ES FR GB IT LI
DOCDB simple family (publication)
EP 0248342 A2 19871209; EP 0248342 A3 19881123; DE 248342 T1 19880721; GB 2192096 A 19871231; GB 2192096 B 19891206; GB 8613263 D0 19860702; HK 19691 A 19910328; SG 91190 G 19910118; ZA 873795 B 19871124
DOCDB simple family (application)
EP 87107697 A 19870526; DE 87107697 T 19870526; GB 8613263 A 19860531; HK 19691 A 19910321; SG 91190 A 19901109; ZA 873795 A 19870526