Owner ABB Schweiz AG

Inventors Benninger, Hans; Spiess, Hermann

Agent FB Rice

Pub. Number AU-B-2003200392

Priority 02405116.1 14.02.02 EP

Filing date 5 February 2003

Wipo publication date 4 September 2003

Acceptance publication date 6 March 2008

H02H 3/05 (2006.01) Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection - with means for increasing reliability, e.g. redundancy arrangements

H02H 7/26 (2006.01) Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions - Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occurred

H02J 13/00 (2006.01) Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network