Research on Gas Sensing Testing Method for Detecting Decomposition Components of Sulfur Hexafluoride
By detecting the composition and concentration of the decomposition products of SF6 gas in the insula-tion medium of gas insulated switchgear,the insulation operation status can be effectively evaluated.Aiming at the detection of SF6 decomposition components SO2,SO2F2 and SOF2,a gas sensing test method was proposed to de-tect SF6 decomposition components.A side heating gas sensor was developed based on nickel nickel doped ZnO gas sensing material,and the sensor testing circuit design was carried out.Based on this,the gas sensing characteris-tics of the SF6 decomposition components SO2,SO2F2,and SOF2 were tested.This has provided an effective gas sensing testing scheme for the detection of decomposition products of SF6 gas.