Trend of Sensing, Monitoring, Diagnostics and Maintenance Technology in Electric Power Apparatus

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  • 電力機器におけるセンシング・監視・診断・保守技術の動向

Abstract

This article deals with trend of sensing, monitoring, diagnostics and maintenance technology in electric power apparatus, especially, gas insulated switchgear (GIS). Partial discharge measurement is one of key technology and the most promising method for developing highly reliable diagnostics for insulation performance of the high voltage apparatus. The review is made by focusing UHF sensors and acoustic method for detecting electromagnetic and ultrasonic waves caused by partial discharges in GIS, respectively.

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