ASSEMBLED-TYPE LEAK RELAY

PROBLEM TO BE SOLVED: To obtain an assembled-type leak relay in which a proper sensitive current can be set by a method wherein a leak current value to be used as a reference in the setting operation of a sensitive current is displayed. SOLUTION: Leak current values in a plurality of electric circui...

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Bibliographische Detailangaben
Hauptverfasser:	HASHIMOTO TADASHI, YOKOTA REI
Format:	Patent
Sprache:	eng
Schlagworte:	CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain an assembled-type leak relay in which a proper sensitive current can be set by a method wherein a leak current value to be used as a reference in the setting operation of a sensitive current is displayed. SOLUTION: Leak current values in a plurality of electric circuits 1 are computed by one A/D conversion part 12 and one computing and processing part 14, and a leakage current value is displayed on a display part 18. When the leakage value exceeds a sensitive current which is set in a storage part 17, an operation display light 9 is turned on by an output from an output circuit 4, a relay 5 is driven, and an alarm signal is sent out from a contact 5a. A leakage current in an electric circuit to be set on the display part 8 is displayed, it is set in a setting part 16, and a set sensitive current is stored in the storage part 17.