Influence of discharge production conditions, gas pressure, current intensity and voltage type, on SF6 dissociation under point–plane corona discharges
Influence of discharge production conditions, gas pressure, current intensity and voltage type, on SF6 dissociation under point–plane corona discharges
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DOI：
10.1063/1.358952
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发表时间：
1995-02
影响因子：
3.2
通讯作者：
A. Belarbi;C. Pradayrol;J. Casanovas;A. Casanovas
中科院分区：
文献类型：
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作者：
A. Belarbi;C. Pradayrol;J. Casanovas;A. Casanovas
对两种平面电极材料(铝和不锈钢)、不同湿度(2 0 0和2 0 0 0ppmvH2O)、不同放电产生条件(交流电压5 0 Hz，直流负极电压，平均放电电流强度I在2~45μA之间变化)，在PSF6=30 0kPa点向平面电晕放电条件下，研究了六氟化硫分解产物的形成。用气相色谱分析稳定的气态副产物(SO2F2、SOF4、SOF2和S2F10)。结果表明，无论所研究的SF6压力(100-300kPa)、放电强度(I)和电压类型如何，构成平面电极的金属和湿度条件都对电极性能有重要影响。SF6压力增加到300kPa时，主要观察到S2F10的影响，这对应于这种化合物与PSF6形成更大的化合物。研究了平均放电电流强度对SF6副产物生成的影响。
The study of the formation of Sulfur Hexafluoride (SF6) dissociation products under point to plane corona discharges was carried out at PSF6=300 kPa using different discharges production conditions (50 Hz ac voltage, dc negative polarity voltage, mean discharge current intensity I varying between 2 and 45 μA for dc negative polarity voltage), for two plane electrode materials (aluminum and stainless steel), and moisture levels (200 and 2000 ppmv H2O). The stable gaseous by‐products formed (SO2F2, SOF4, SOF2, and S2F10) were assayed by gas‐phase chromatography. The results indicate an important effect of the metal constituting the plane electrode and of the moisture conditions whatever the SF6 pressure (100–300 kPa), discharges intensity (I) and voltage type studied. An effect of the increase of SF6 pressure up to 300 kPa was mainly observed for S2F10 and corresponds to a greater formation of this compound with PSF6. The influence of the mean discharge current intensity on SF6 by‐product formation carrie...