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Potential leakage of SF6 gas in encapsulated switchgear can lead to larger outages of substations. Therefore effective SF6 monitoring is necessary in to guarantee a certain level of reliability and to address growing environmental awareness. In order to analyze the switchgear condition, the detection of very small leakage rates is required. As broadly published, the measurement of gas density in SF...
Recently, electric utilities decide to permanently monitor the SF6 gas level in gas insulated switchgear. This is mainly because of two reasons: The optimization of their maintenance strategy and environmental awareness associated with greenhouse gas emissions. The detection of small gas leakages is not an easy task. The authors propose a model which allows using pressure sensors. The problem of high...
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