混合气体的正协同效应及其应用

Positive Synergistic Effect of Gaseous Mixtures and Its Applications

混合气体的耐电强度大于其中任意一种气体的耐电强度则称为正协同效应．这种效应的作用是非常重要的、以实验的方法研究了在不同电场、不同压力、不同局部压力比的条件下SF6和CCl2F2二元混合气体的电击穿特性与SF6／N2、SF6／CO2和CCl2F2三元混合气体电击穿特性之间的关系。试验结果表明在最佳混合压力比的情况下.SF6／N2／CCl2F2．SF6／CO2／CCl2F2三元混合气体的耐电强度能被提高或接近到SF6的耐电强度．同时它的成本接近于SF6／N2=50／50二元混合气体的成本。

It is defined as the positive synergistic effect that the electrical strength of a few gaseous mixtures is larger than that of individual componen gases. In order to increase the electrical strengths of gaseous mixtures. the aPPlication of the effect is important. The relation between the electrical breakdown properties of binary gaseous mixtures of SF6 with CC12F2 under different uniformity of field. different pressure and different partial pressure ratio was studied. The experiment results indicate that the electrical strengths of ternary gaseous mixtures such as SF6/N2/CC12F2, SF6/COZ/CC12F2 with optimal partial ratio can be increased to or exceed that of SF6. and its cost approaches to the cost of binary gaseous mixture SF6/N2= 50/50.