US 9,813,361 B2
Method for selectively turning off a switch in a switch arrangement for current distribution, and corresponding switch arrangement
Stefan Widmann, Freudenberg (DE)
Assigned to Siemens Aktiengesellschaft, Munich (DE)
Filed by Siemens Aktiengesellschaft, Munich (DE)
Filed on Feb. 10, 2015, as Appl. No. 14/618,649.
Claims priority of application No. 10 2014 206 249 (DE), filed on Apr. 2, 2014.
Prior Publication US 2015/0288623 A1, Oct. 8, 2015
Int. Cl. G01R 31/08 (2006.01); H04L 12/939 (2013.01); H04L 12/24 (2006.01); H02J 1/00 (2006.01); H04W 28/04 (2009.01)
CPC H04L 49/557 (2013.01) [H02J 1/00 (2013.01); H04L 41/0654 (2013.01); H04W 28/04 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method for selectively turning off a switch in a switch arrangement for current distribution, in the switch arrangement, as seen from a supply, one switch is upstream and one other switch is directly downstream of the one switch, each of the upstream switch and the downstream switch having a current condition different from the other, current flowing through the downstream switch also flows via the upstream switch, wherein each of the switches is configured to automatically check whether the current condition associated therewith is met, and wherein the upstream switch and the downstream switch are connected to one another via a communication link, the method comprising:
putting a respective delay signal onto the communication link, by the downstream switch, if the current condition associated with the downstream switch is met and no fault occurs that prevents the downstream switch from opening, wherein the upstream switch, following reception of the delay signal, does not open at least for a prescribed delay time;
putting by the downstream switch, when the current condition is met and a fault that prevents the downstream switch from tripping occurs, a fault report onto the communication link, and
tripping the upstream switch, in response to reception of the fault report, when the current condition of the downstream switch is met and the current condition of the upstream condition is not met.