高电压技术2019，Vol.45Issue(4)：1234-1240,7.DOI:10.13336/j.1003-6520.hve.20190329020
c-C4F8/N2混合气体的绝缘子沿面闪络性能
Surface Flashover Properties of c-C4F8/N2 Insulator
满林坤 1张明理 1潘霄 1卢天琪 1杨天蒙 1孙国庆2
作者信息
- 1. 国网辽宁省电力有限公司经济技术研究院, 沈阳 110015
- 2. 国网本溪供电公司电力调度控制中心, 本溪 117000
- 折叠
摘要
Abstract
To comprehensively study the insulating performance of c-C4 F8/N2 mixture, we investigated the surface flashover properties of c-C4 F8/N2 insulator. Meanwhile, we measured the surface flashover voltage of c-C4 F8/N2 insulator at different pressures, mixing ratios, and voltage types, thereby, it is compared with that of N2 and SF6 insulator under the same test conditions. After the experiments being performed, the gas compositions were detected. Results show that, in frequency AC voltage and lightning impulse voltage, the insulator surface flashover voltage increases as the gas pressure/c-C4 F8 mixing ratio increases; in 0.10 MPa, the insulating surface flashover performance of 30％ c-C4 F8/N2 mixed gas equals to 73％ of SF6 in 0.10 MPa; in 0.30 MPa, the insulating surface flashover performance of 30％ c-C4 F8/N2 mixed gas equals to 1.4 times of SF6 in 0.10 MPa. From the insulator surface flashover properties, c-C4 F8/N2 gas mixture may be used as an alternative for SF6 gas which is used in electrical equipment.关键词
c-C4F8/N2混合气体/沿面闪络/绝缘子/气体分解/工频交流耐压/雷电冲击电压Key words
c-C4F8/N2 mixed gas/surface flashover/insulator/gas decomposition/frequency AC voltage/lightning impulse voltage引用本文复制引用
满林坤,张明理,潘霄,卢天琪,杨天蒙,孙国庆..c-C4F8/N2混合气体的绝缘子沿面闪络性能[J].高电压技术,2019,45(4):1234-1240,7.
