三元混合气体SF_6／CCl_2F_2／N_2击穿特性研究

STUDY ON BREAKDOWN CHARACTERISTICS OF TERNARY MIXTURE OF SF_6/CCl)2F_2/N_2

研究了不同电场分布中三元混合气体ＳＦ６／ＣＣｌ２Ｆ２／Ｎ２的工频电压击穿特性和冲击电压击穿特性．气压范围为１００ｋｐａ～３００ｋｐａ．结果表明，适当配比的ＳＦ６／ＣＣｌ２Ｆ２／Ｎ２混合气体具有相当于甚至优于纯ＳＦ６的击穿强度．

The breakdown characteristics of ternary mixture of SF6/CCl2F2/N2 under impulse and power frequency alternating voltages are studied in this Paper. The pressures of acs mixtures range from 100bpc to 300kpa. Experimental results shaw that some ternary mixtures of SF6/CCl2F2/N2 in suitable proPOrtions have breakdown strength equal to or even higher than that of pure SF6 gas.