Development of ultra-high frequency (UHF) ultra-wide bandwidth signal processing unit for UHF partial-discharge monitoring system for gas-insulated switchgears

가스절연개폐장치용 부분방전 감시 시스템을 위한 초광대역 극초단파 신호처리장치 개발

  • Published : 2004.07.14

Abstract

An ultra wide band ultra-high frequency (UHF) signal processing module was designed for on-line UHF partial discharge (PD) monitoring systems for gas-insulated switchgears (GIS). Major advantage of the unit is an improved PD detection sensitivity through minimizing the effect of surrounding interference signals. The detection sensitivity of the unit was <-60 dBm that is sufficient to detect UHF PD signals as low as 1 pC. Precise detection of PD occurred in the GIS, due to internal defects, is possible by using the signal processing unit.

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