Transmission of protection commands to a remote tripping device

The present invention is concerned with the transmission of protection commands to a remote tripping device over an analog signal link with a limited number of tones or frequencies (F1, F2, F3, F4). Different operating principles involve a number of frequency detectors (41, 42, 43, 44) depending on...

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Bibliographic Details
Main Author STRITTMATTER, MICHAEL
Format Patent
LanguageEnglish
French
German
Published 07.06.2006
Subjects
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
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Summary:The present invention is concerned with the transmission of protection commands to a remote tripping device over an analog signal link with a limited number of tones or frequencies (F1, F2, F3, F4). Different operating principles involve a number of frequency detectors (41, 42, 43, 44) depending on the number of commands (A, B, C, D) that are to be transmitted either alone or in combination. In order to transmit a maximum number of protection commands with a minimum number of tones/detectors, two of the abovementioned distinct operating principles are assigned at least one common tone. A prioritizing mechanism is established for preferring certain related protection commands belonging to a common application. Upon reception of a signal coding a combination of protection commands, it is possible to detect individual protection commands in accordance with different minimum safety and/or security values. A protection command can thus always be transmitted optimally for the intended application, i.e. the parameters of safety and/or security, dependability and transmission time are individually configurable for the protection command.
Bibliography:Application Number: EP20040405747