Insulating gas state detection system for GIS (gas insulated switchgear) equipment

The invention provides an insulating gas state detection system for GIS (gas insulated switchgear) equipment. Sulfur hexafluoride mixed gas is extracted from the GIS equipment and fed into a sample gas chamber; a sensor for gas feature detection is used for detecting the sulfur hexafluoride mixed ga...

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Bibliographic Details
Main Authors Cha Jianqing, Cai Weidong, Dai Wenhua, Lin Yangpo, Shen Dongming, Zhou Yan, Chen Ruzhou, Xiao Guanghui
Format Patent
LanguageChinese
English
Published 31.08.2016
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Summary:The invention provides an insulating gas state detection system for GIS (gas insulated switchgear) equipment. Sulfur hexafluoride mixed gas is extracted from the GIS equipment and fed into a sample gas chamber; a sensor for gas feature detection is used for detecting the sulfur hexafluoride mixed gas in the sample gas chamber to obtain a resistance signal corresponding to a gas feature parameter value; after zero drift of the sensor and on-site interference signal influence are eliminated through a bridge-type compensating circuit, a voltage signal corresponding to the resistance value is outputted; a signal analysis and processing module is connected with the bridge-type compensating circuit to obtain the voltage signal for performing analog-digital conversion and signal amplification processing, and is further connected with a temperature sensor and a pressure transmitter to acquire a temperature value and a pressure value of the sample gas chamber, and temperature and/or pressure compensation of the gas fe
Bibliography:Application Number: CN20161279999