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DEVICE FOR THE PREVENTION OF SERIOUS FAULTS IN ELECTRICAL MAINS SUPPLY NETWORKS
DEVICE FOR THE PREVENTION OF SERIOUS FAULTS IN ELECTRICAL MAINS SUPPLY NETWORKS
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机译:预防电网电源严重故障的装置
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摘要
The invention relates to a device for the prevention of serious faults in electrical mains supply networks by spectral analysis of the network voltage. The spectrum determined by a voltage A/D converter and a spectral analysis device is subjected to a classification by frequency intervals. The values for the frequency interval classes are correlated in the comparator with frequency interval class reference patterns for corresponding determined faults.
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