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US 2003/0151866 A1Published application
Time-optimum reception of protection commands in a remote tripping device
AssigneeABB Schweiz AG
InventorsHermann Spiess, Hans Benninger
Life of this patent
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Abstract
In a method and a detector (7) for time-optimum reception of protection commands in a remote tripping device, at least two detector elements (1, 2) are operated, which are all designed for a signal at the same frequency but for different transmission times. Where at least one of these detector elements (1, 2) detects the presence of the signal, the signal is regarded as having been detected.
Claims4
A method for time-optimum reception of protection commands in a remote tripping device, characterized
- in that at least two detector elements (1, 2) are operated, which are all designed for detection of a signal at the same frequency but with different transmission times, and
- in that the signal is regarded as having been detected when at least one of these detector elements (1, 2) detects the presence of the signal.
A remote tripping device having a detector (7) for time-optimum reception of protection commands, characterized
- in that the detector (7) has at least two detector elements (1, 2), which are all designed for a signal at the same frequency but for different transmission times, and has non-exclusive OR logic linking of detectors element outputs (3, 4) of the at least two detector elements (1, 2) in order to form an output (6) of the detector (7).
Dependencies are inferred from the claim text.