Naohiro Okutsu

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Techniques to locate and indicate faulted gas sections are needed in the event of ground faults of SF6 gas insulated equipment, especially of gas insulated substations (GIS) and gas insulated buses (GIB). The authors have developed mechanical sensors operating on shock acceleration by making use of the dynamic characteristics of the tanks, which are(More)
This paper presents the characteristics of vibration, caused by partial discharge, electrostatic forced particles, electromagnetic or electrostatic forced parts, and operation of switchgear, etc., in metal enclosures of gas insulated equipment. A technique for pattern recognition of these vibrations is discussed and a method of three dimensional(More)
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