| C_4F_8/N_2混合气体局部放电特性实验研究 |
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| 引用本文： | 邢卫军,张国强,李康,牛文豪,王新,王迎迎.C_4F_8/N_2混合气体局部放电特性实验研究[J].中国电机工程学报,2011(7). |
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| 作者姓名： | 邢卫军 张国强 李康 牛文豪 王新 王迎迎 |
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| 作者单位： | 中国科学院电工研究所; |
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| 基金项目： | 国家自然科学基金项目(50877075)~~ |
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| 摘 要： | 由于SF6气体的温室效应,减少或杜绝SF6气体的使用已成为共识。从局部放电(partial discharge,PD)性能的角度探讨了用C4F8/N2混合气体代替SF6气体用于气体绝缘设备的可行性。通过试验测量C4F8/N2混合气体在不同气压、不同混合比、不同电极距离情形下的局部放电起始电压,得到了这3种因素对混合气体局部放电性能的影响,并与纯SF6气体的局部放电起始电压做了对比。结果表明:纯C4F8气体的局部放电起始电压是纯SF6气体的1.3倍左右;C4F8气体与N2气体具有协同效应,协同系数在0.45左右;C4F8/N2混合气体的局部放电能力与同混合比的SF6/N2混合气体的相似。因此,综合考虑液化温度、环境影响、局部放电性能后,C4F8气体含量在10%～20%的C4F8/N2混合气体有可能替代SF6气体用于气体绝缘设备。
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| 关 键 词： | 电力系统 C4F8/N2 混合气体 局部放电 协同效应 |
Experimental Study of Partial Discharge Characteristics of C_4F_8/N_2 Mixtures |
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| XING Weijun,ZHANG Guoqiang,LI Kang,NIU Wenhao,WANG Xin,WANG Yingying.Experimental Study of Partial Discharge Characteristics of C_4F_8/N_2 Mixtures[J].Proceedings of the CSEE,2011(7). |
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| Authors: | XING Weijun ZHANG Guoqiang LI Kang NIU Wenhao WANG Xin WANG Yingying |
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| Affiliation: | XING Weijun,ZHANG Guoqiang,LI Kang,NIU Wenhao,WANG Xin,WANG Yingying(Institute of Electrical Engineering,Chinese Academy of Sciences,Haidian District,Beijing 100190,China) |
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| Abstract: | Because of the greenhouse effect of SF6 gas,it became a common view that less or no SF6 gas would be used in future.The partial discharge(PD) characteristics of C4F8/N2 gas mixtures and the possibility of substituting SF6 gas used in gas insulated equipment were discussed.The partial discharge inception voltages of C4F8/N2 gas mixtures were measured in different gas pressures,mixing ratios and electrodes distances,and compared with that of pure SF6 gas.The influences of these factors were also analyzed.The ... |
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| Keywords: | power system C4F8/N2 gas mixture partial discharge synergism effect |
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