摘要
在Ｅ／Ｐ值为１５．０～９４．０ｋＶ＇（ｍｍ·ＭＰａ）范围内采用稳态汤逊法（ＳＳＴ）测量了ＳＦ６／Ｎ２、ＳＦ６／ＣＯ２、ＳＦ６／Ｈｅ、ＳＦ６／Ｎｅ、ＳＦ６／Ａｒ、ＳＦ６／Ｋｒ、ＳＦ６／Ｘｅ等混合气体的电子崩电流，确定了电离系数α，吸附系数η和有效电离系数．用最小二乘法求出了／Ｐ与Ｅ／Ｐ值的关系，给出了在各混合比下这些混合气体的临界耐电强度值（Ｅ／Ｐ）ｌｉｍ，并分析和比较了这些混合气体的绝缘特性．
The avalanche currents in SF6/N2, SF6/CO2, SF6/He, SF6/Ne, SF6/Ar, SF6/Krand SF6/Xe gas mixtures have been measured by the steady state Townsend mothod over the range of 15. 0≤E/P≤94. 0kV/(mm. MPa), and the electron swarm parameters(ionizationcoefficient α, attachment coefficient η, and effective ionization coefficient) are determined.Relations between the α/P,η/P /p and E/P are determined by least-square analysis. The limiting E/P values of these mixing gases in variable mixing ratio are proposed, and the insulating properties of these mixing gases are analysed and compared.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1996年第1期23-28,共6页
Journal of Shanghai Jiaotong University
