离子色谱法检测可水解氟化物在SF_6设备故障判定中的应用

Fault Judging Method for SF_6 Gas Insulated Switchgear via Measuring Hydrolysable Fluoride with Ion Chromatography

笔者应用离子色谱法测定SF6气体中的可水解氟化物的质量分数。考察SF6气体在模拟放电和过热情况下可水解氟化物的变化趋势。考察正常运行设备中SF6气体可水解氟化物的质量分数以及故障情况下可水解氟化物的质量分数。提出了用该方法测试SF6设备中气体可水解氟化物时的故障判断参考注意值。对判断SF6气体设备中的故障情况具有一定的参考意义。

Ion chromatography is used for measuring hydrolysable fluoride in sulfur hexafluoride （SF6） gas to understand the variation trend of hydrolysable fluoride in SF6 gas in the case of simulated discharge and overheating. The volume fractions of the hydrolysable fluoride in both normal and faulty SF6 insulated equipments are obtained. Accordingly, the reference values of hydrolysable fluoride content for judging the fault in SF6 insulated equipment is given.