Gas Chromatography Assay Of Humidity Of Sf₆

In recent decades, SF6 gas as an excellent dielectric and arc-quenching medium in high-voltage electrical equipment insulation areas to be more and more widely used, but the presence of SF6 gas in the water, seriously affecting its insulating state, so the SF6 Electric moisture detection equipment is very important. At present, the domestic and international electric power system uses micro-detection methods are mainly water, there is electrolysis, dew point method and the resistance-capacitance method. These methods have a very big disadvantage is that when measuring gas consumption are large, SF6 is an expensive gas, is also a source of pollution. In addition to testing air consumption can cause major environmental pollution, it will also cause equipment inside the pressure drop too much affect the normal operation of equipment, or increase the work. To this end, this paper presents a new detection methods-gas chromatography, creatively put forward the enrichment enrichment technology, solving critical water and SF6 separation difficult, using thermal conductivity detector for testing. This topic was last with the principle of verification testing machine a large number of comparative test results show that the method is very effective and has a good application prospects and promotion of values.