Progress in chemical detection and treatment technology for decomposition products of SF6 in power equipment
Sulfur hexafluoride(SF6)is widely used in various medium and high voltage electrical equip-ment because of its excellent insulation and arc extinguishing performance.However,when there is a small amount of water,oxygen and other impurities in the equipment,SF6 will decompose and generate many kinds of complex products.The generation mechanism of decomposed products,trace chemical de-tection methods and catalytic degradation are discussed from the chemical point of view,current adsorp-tion treatments and trace detection technologies of impurity gases are summarized and the new insulating gases that may replace SF6 are proposed.
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