Device and method relating to protection of an object...

Details Device and method relating to protection of an object... Device and method relating to protection of an object...

H - Electricity

02

H

H02H 9/02 (2006.01) H01F 3/10 (2006.01) H01F 3/14 (2006.01) H01F 27/28 (2006.01) H01F 27/32 (2006.01) H01F 27/34 (2006.01) H01F 29/14 (2006.01) H02H 3/02 (2006.01)

Patent

CA 2275638

This invention is related to a device and a method in an electric power plant for protection of an object (1) against over-currents from a network (3) or another equipment included in the high voltage plant, the device comprising a switching device (4) in a line (2) between the object and the network/equipment. The line (2) between the object and the network/equipment is connected to an arrangement (5) reducing over-currents towards the object (1), said arrangement (5) being actuatable for over-current reduction with the assistance of an over-current condition detecting arrangement (11-13) within a time period substantially less than the break-time of the switching device (4).

Cette invention porte sur un dispositif et un procédé utilisés dans une installation électrique et permettant de protéger un objet (1) contre des surintensités de courant provenant d'un réseau (3) ou autre équipement se trouvant dans l'installation haute tension. Ce dispositif comprend un commutateur (4) placé dans une conduite (2) entre l'objet et le réseau/équipement. La conduite (2) située entre l'objet et le réseau/équipement est raccordée à un dispositif (5) réduisant les surintensités de courant affectant l'objet (1), ce dispositif (5) pouvant être actionné pour réduire les surintensités à l'aide d'un dispositif de détection (11-13) d'états de surintensités sur une période sensiblement inférieure à la durée de coupure du commutateur (4).

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