RATIO DIFFERENTIAL RELAY

To improve the sensitivity of abnormal detection in a ratio differential relay.SOLUTION: A ratio differential relay 1 comprises a data processing control circuit 8. The data processing control circuit 8 calculates a difference current Id that is a difference between a first current (I1 s*Nct1) as a...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TAKEI AKIHISA, ICHIKAWA YOSHIHARU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION
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