Gas chromatographic measurement of dissolved gases in dielectric fluid - uses appts. having low pressure gas extraction chamber, fluid sampling device and control valve network

摘要

Gas chromatography is employed to analyse gas extracted from dielectric fluid found in an electrical installation. A fluid sample is extracted from the installation through a valve which meters a precise measurement of the fluid. The sample is then applied to a dissolved gas extraction chamber. The gas extraction chamber is next evacuated of air by a pump. The gas so extracted from the dielectric fluid is now applied to the gas chromatograph for analysis and a recording device records the measured constituents of the extracted gas.