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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Bibliographische Detailangaben
1. Verfasser:	STRITTMATTER, MICHAEL
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION PHYSICS SIGNALLING TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILARSIGNALS
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