What is the SF6 Decomposition Analyzer used for?- SF6在线监测系统_SF6检漏仪_SF6传感器_SF6密度继电器

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What is the SF6 Decomposition Analyzer used for?

发布时间：2015-12-10 来源：ydlcb 浏览次数：39次

SF6 gas decomposition products detection items include: SO2, H2S, CO and CF4 content detection.

SF6 gas decomposition products detection methods include: electrochemical sensor method, gas chromatography, ionization method, dynamic ion method and infrared method. The electrochemical sensor method works by means of an electrical signal that reacts with the measured gas and is generated in direct proportion to the gas concentration.

Pure SF6 gas is colorless, tasteless, non-toxic, non-flammable inert gas, its own decomposition temperature is greater than 500 ° C, in the normal operation of the decomposition products are very few, but when co-existing with metal materials, at 200 ° C it is possible to occur trace decomposition. As the insulating medium of gas-insulated combined electrical apparatus (GIS), sulfur hexafluoride (SF6) gas has excellent insulation and arc extinguishing performance, and can greatly reduce the size of equipment, so it is widely used in GIS and SF6 circuit breakers and other equipment. In fact, the SF6 gas in use contains a certain amount of air and water, and a variety of low fluorine sulfides generated by decomposition are very active, that is, react with trace water and oxygen in SF6 gas. Due to the combination of SF6 decomposition and water, HF, H2S, CO, SO2 and other compounds have a strong corrosion effect on other insulation and metal materials in the equipment, and then accelerate the insulation deterioration, resulting in sudden equipment failure. However, during the installation and operation of GIS equipment, the internal defects of GIS, such as electrode surface burrs, free conductive particles and suspended conductors, cause partial discharge or overheating.

1) SF6 decomposition detector (Winfoss-P11) can detect and judge the early failure of SF6 electrical equipment (circuit breakers, transformers, transformers, GIS and bushings, etc.) quickly on site by simultaneously monitoring SO2 and H2S decomposition. The SF6 decomposition detector (Winfoss-P11) is widely used in SF6 electrical equipment in the power, railway, metallurgical and petrochemical industries.

2) Detect SO2 and H2S decomposition, can quickly detect and judge the early failure of SF6 electrical equipment (circuit breakers, transformers, transformers, GIS and bushings, etc.) in the field.