INTERNAL SHORT CIRCUIT FAULT DETECTOR FOR EARTHED METALIC VESSEL TYPE POWER USE SWITCHING INSTRUMENT

Title:

INTERNAL SHORT CIRCUIT FAULT DETECTOR FOR EARTHED METALIC VESSEL TYPE POWER USE SWITCHING INSTRUMENT

Document Type and Number:

Japanese Patent JPS5344849

Kind Code:

A

Abstract:

PURPOSE: To surely detect the short circuit faults from the exterior by arranging a current transformer in the connected portion of a plurality of earth metalic vessels and by detecting the difference of the current flowing through the respective current transformers in the event any short circuit fault may be caused in the vessels.

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Inventors:

TAKAHASHI KOUJI
IDA YOSHIAKI
IMATAKI MITSUMASA

Application Number:

JP11972376A

Publication Date:

April 22, 1978

Filing Date:

October 04, 1976

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP

International Classes:

H02H7/22; (IPC1-7): H02B13/06

Domestic Patent References:

JPS4526021Y1	1970-10-12
JPS3533842Y1

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