Redundant transmission of protection commands between remote tripping devices

Abstract

In a method and a device for redundant transmission of protection commands between remote tripping devices (1, 8), useful information which represents a protection command or a rest signal is transmitted by a first remote tripping device (1) in at least two time slots via a first interface (2) to a first multiplexer (3), and is transmitted via different transmission paths (4, 5) by the multiplexer (3) based on the time slots. A second multiplexer (6) receives the useful information via the different transmission paths (4, 5), and transmits each useful information item via a time slot, which is allocated to the respective transmission path (4, 5), in a second interface (7) to a second remote tripping device (8).

Dependencies are inferred from the claim text.