VERFAHREN UND SYSTEM ZUR FEHLERERKENNUNG IN ELEKTRISCHEN LEISTUNGSGERÄTEN

The present invention is directed to a method and a system for fault detection analysis in a power device which is operatively associated with a differential protection unit. The power device has one input side and one output side through which an input current and an output current flows into and o...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PETERSON, JOHN, GANESAN, SETHURAMAN, DAS, RATAN
Format: Patent
Sprache:ger
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Beschreibung
Zusammenfassung:The present invention is directed to a method and a system for fault detection analysis in a power device which is operatively associated with a differential protection unit. The power device has one input side and one output side through which an input current and an output current flows into and out from it, respectively. Signals representative of the input and output currents are processed in order to verify if an occurring fault is external to the power device. Under a condition of an external fault, the differential protection unit is disabled for a determined interval of time.