SF_6/R12混合气体绝缘的研究与应用  

STUDY AND APPLICATION OF THE SF_6/R12 GAS MIXTURE

作　　者：邱毓昌[1] 冯允平[1] 张鸣超[1] 郭伟[1] 

机构地区：[1]西安交通大学电气工程系

出　　处：《西安交通大学学报》1990年第5期1-8,共8页Journal of Xi'an Jiaotong University

基　　金：国家"七五"重大技术装备科技攻关项目.

摘　　要：汤逊第一电离系数和电子附着系数的测量表明:当混合比在50/50左右时,SF_6/R12混合气体的耐电强度比两种气体组分都高,约为 SF_6的1.5倍.由于 SF_6可有效地抑制 R12在放电时析出碳微粒,且50/50的 SF_6/R12混合气体的成本仅为 SF_6的53%,因此这种混合气体有工业应用前途.基于本研究工作,已研制成一台 SF_6/R12混合气体绝缘的100kV 标准电容器样机.Measurements of the Townsend first ionization and electron attachment coeff- icients in SF_(?)/R12 gas mixtures show that with a mixing ratio of about 50/50, the mixture is better than both gas constituents with its relative electric strength being 1.05 compared with SF_6.As SF_6 can effectively retard the carbon format- ion of R12 upon sparking,and the cost of the 50/50 gas mixture is only 53% of that of SF_6,the gas mixture studied in the present work holds some promise of industrial applications.A prototype 100kV SF_6/R12 insulated standard capacitor has been successfully developed on the basis on this work.

关 键 词：混合气体 气体绝缘材料 充气电容器 

分 类 号：TM213[一般工业技术—材料科学与工程]