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首页> 外文会议>2008 China International Conference on Electricity Distribution (CICED 2008)（2008中国国际供电会议）论文集 >Situation and Analysis of Sulfur Hexafluoride (SF6) Byproducts of Gas Insulated Switchgear (220kV and above) in Guangdong Province and Latent Fault Judgment of the Electric Equipment
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Situation and Analysis of Sulfur Hexafluoride (SF6) Byproducts of Gas Insulated Switchgear (220kV and above) in Guangdong Province and Latent Fault Judgment of the Electric Equipment

机译：广东省220 kV及以上气体绝缘开关设备中六氟化硫（SF6）副产物的现状与分析及电气设备的故障判断。

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摘要

In the occurrence of arcs discharges, spark discharges and corona discharges, sulfur hexafluoride (SF6) would be decomposed to complicated byproducts such as sulfur dioxide (SO2), carbon tetrafluoride (CF4), etc. Analyzing the concentrations of these byproducts, which can be determined when the electric equipment is electriferous, is an effective method to judge the internal condition of GIS. The fault of GIS and the position of the fault can be known by SF6 byproducts analysis. There are many cases about how to judge the electric equipment faults by analyzing SF6 byproducts, but with little experience about how to judge the latent faults. The article concluded the concentrations of SF6 byproducts in 74 220kV and 500kV GIS transformer substation (3770 gas chambers in total) in Guangdong Province. The concentrations of carbon dioxide (CO2), CF4, thionyl sulfide (SOF2), sulfuryl fluoride (SO2F2), disulfuryl decafluoride (S2OF10), SO2 and sulfureted hydrogen (H2S) were in partial normal distribution. The concentrations of CO2, CF4, SOF2, SO2F2, S2OF10 were all below 0.1% (v/v); the concentrations of SO2 were below 3μL/L; the concentrations of H2S were below 1μL/L. The SF6 byproducts concentrations in 500kV GIS were lower than those in 220kV GIS. The SF6 byproducts concentrations were higher in GIS that have been operating longer.
机译：在发生电弧放电，火花放电和电晕放电时，六氟化硫（SF6）会分解为复杂的副产物，例如二氧化硫（SO2），四氟化碳（CF4）等。分析这些副产物的浓度可以确定电气设备何时带电，是判断GIS内部状况的有效方法。可以通过SF6副产品分析来了解GIS的故障及其位置。关于如何通过分析SF6副产物来判断电气设备故障的案例很多，但是关于如何判断潜在故障的经验却很少。总结了广东省74 220kV和500kV GIS变电站（共3770个气室）中SF6副产物的浓度。二氧化碳（CO2），CF4，亚硫酰硫化物（SOF2），硫酰氟（SO2F2），二硫酰十氟化物（S2OF10），SO2和硫化氢（H2S）的浓度呈部分正态分布。 CO2，CF4，SOF2，SO2F2，S2OF10的浓度均低于0.1％（v / v）； SO2浓度低于3μL/ L； H2S浓度低于1μL/ L。 500kV GIS中的SF6副产物浓度低于220kV GIS中的。在运行时间较长的GIS中，SF6副产物的浓度较高。

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