MEASUREMENT DEVICE FOR MEASURING OPERATION CURRENT AND FAULT CURRENT OF CIRCUIT BREAKER BY USING SINGLE ROGOWSKI COIL

The present invention relates to a circuit breaker operating current/fault current measuring device using a single Rogowski coil has an advantage of reducing an installation space and a manufacturing cost by simultaneously measuring an operating current and a fault current with the single Rogowski c...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHUNG, Young Hwan, AHN, Hyun Mo, KIM, Joong Kyoung
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY INDUCTANCES MAGNETS MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TESTING TRANSFORMERS
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Beschreibung
Zusammenfassung:	The present invention relates to a circuit breaker operating current/fault current measuring device using a single Rogowski coil has an advantage of reducing an installation space and a manufacturing cost by simultaneously measuring an operating current and a fault current with the single Rogowski coil and has an advantage of improving reliability by simultaneously satisfying accuracy required for measurement of the operating current and the fault current.The circuit breaker operating current/fault current measuring device using a single Rogowski coil according to the present invention is configured with a Rogowski coil installed to wrap around a current-carrying conductor, a protection circuit outputting a fault voltage based on a voltage generated from a tap installed on a portion of the Rogowski coil, and a measurement circuit outputting an operating voltage based on a voltage generated in the entire coil of the Rogowski coil.