Method and device for measuring the instability of an arc in an electric furnace for the processing (treatment) of liquid metal, fed with direct current

According to this method and this device, a signal is picked up which represents the voltage at the terminals of the arc, the signal is forwarded simultaneously into two band-pass filters (6, 7) which have, respectively, a wide high-frequency band (6) excluding the DC component and a wide band (7) i...

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Bibliographische Detailangaben
Hauptverfasser:	NGLER GILBERT, MAURER GHISLAIN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS CONTROLLING ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY METALLURGY OF IRON PHYSICS PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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