SF_6/N_2混合气体绝缘特性的试验研究及理论分析

应用自制的试验模型对SF6/N2混合气体的绝缘能力进行了试验研究,并和纯净的SF6、N2的绝缘能力进行了比较,获得了SF6/N2混合气体在不同比例下的击穿电压与气体间隙距离之间的曲线.经综合比较、分析确定50%SF6 50%N2的混合气体的经济技术指标比较高,可以在电气设备中作为绝缘介质广泛应用.

Testing research and theory analysis of insulating characteristics of SF_ 6/N _2 mixture gas

In this paper,the insulative capacity of SF 6 /N 2 hybrid gas was studied and compared with pure SF 6 or N 2 by test,and some curves of breakdown voltages and gas gap distances had been gained under different proportio n hybrid gas.By synthetically comparing and analysis,it shows that hybrid gas with fifty percent of SF 6 and fifty percent of N 2 gas is ideal in view of economy and technology aspects,it can be widely applized to insulation material field in electrical equipm ent.