摘要
针对临沂供电公司的一起GIS组合电器事故,运用常规与非常规化学、电气试验手段,对GIS SF6CT气室中闪络故障前后气体成份及CT气室内的材料进行排查试验,分析了事故原因,指出事故是由内置式CT气室内的丁腈橡胶板中的腐蚀性硫与气室内触头等镀银件反应形成硫化银,最终形成导电通道,引起CT气室闪络击穿。对此类典型故障进行了详细的分析总结,具有典型的指导意义。
Recently, the gas insulated swithgear（GIS） flashover faults happened in Linqing Power Supply Company. By chemical and electrical experiments, thorough inspections are carried out on the gas components and chemical materials in the GIS SF6 CT air chamber before and after flashover faults. It is testified that butyronitrile rubber plate existed in CT air chamber with frequent flashover faults, the caustic sulphur in the plate reacted with silver-gilt items and produced silver sulphide, which was the cause of flashover in CT chamber. This paper makes particular description and detailed summary to this kind of faults. It has important instruction meaning to make an accurate judgement rapidly and handle faults in time when we meet this kind of GIS faults.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2010年第3期128-129,132,共3页
Power System Protection and Control
